R

꧁༺ρrσ(ღтєαмღƒαღмυôиღиăм)༻꧂

25 tháng 4 2021 - olm

What are fossils and how are they formed | Learn about Fossils

#Hỏi cộng đồng OLM #Tiếng anh lớp 6

6

VK

Vũ Khôi Nguyên

25 tháng 4 2021

Fossils are relics and remains (corpses) of organisms preserved in rock layers, which are the main research object of biology. During the long existence of the Earth, many creatures have lived.

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2H

22 Hoàng Chà My

25 tháng 4 2021

cái kiếm để làm gì

chỉ bài à

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SC

Study Corner Of Cotton Candy

25 tháng 6 2018 - olm

2.Read and translate.What are fossils? Fossils are parts of animals that died a very long time ago .you can find fossils in rocks.you can see the shape of the animal .some fossils are more than 500 millions years old. Why are fossils important?Fossils tell us about the past. We can learn about types of rocks and we can learn about animals that lived a very long time ago.Where can you find fossils?You can find fossils in many places. You can find them on mountains and in lakes.You can...

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#Hỏi cộng đồng OLM #Tiếng anh lớp 5

3

SA

Suu ARMY

25 tháng 6 2018

Nếu dịch vb trên ra thì nó sẽ như thế này :

2.Đọc và dịch.
Hóa thạch là gì?
Hóa thạch là một phần của động vật đã chết một thời gian rất dài trước đây. Bạn có thể tìm thấy hóa thạch trong đá. Bạn có thể nhìn thấy hình dạng của động vật. Một số hóa thạch đã hơn 500 triệu năm tuổi.

Tại sao hóa thạch lại quan trọng?
Hóa thạch cho chúng ta biết về quá khứ. Chúng ta có thể tìm hiểu về các loại đá và chúng ta có thể tìm hiểu về các loài động vật đã sống rất lâu trước đây.

Bạn có thể tìm thấy hóa thạch ở đâu?
Bạn có thể tìm thấy hóa thạch ở nhiều nơi.
Bạn có thể tìm thấy chúng trên núi và trong hồ. Bạn có thể tìm thấy chúng trên sông và trên bãi biển. Bạn cũng có thể tìm thấy chúng dưới mặt đất.

Làm thế nào tôi có thể nhìn thấy một hóa thạch?
Bạn có thể ghé thăm bảo tàng để xem hóa thạch, hoặc bạn có thể mua chúng trong các cửa hàng hóa thạch đặc biệt. Bạn cũng có thể tìm kiếm hóa thạch trên bãi biển. Đôi khi, bạn có thể nhìn thấy chúng trên cát hoặc trong đá.

Đây là một hóa thạch của một ammonit. Những con vật này sống ở biển khoảng 400 triệu năm trước. Hôm nay, bạn có thể tìm thấy những hóa thạch này trên các bãi biển ở Anh.

Đây là một hóa thạch của một cuộc chiến. Nhà khoa học đã tìm thấy nó ở sa mạc phía Tây ở Ai Cập. Hàng triệu năm trước Sa mạc Tây là một biển.

Nếu đúng thì tk nhé , mơn nhìunắm !!!

~ HOK TỐT ~

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TH

Tiên Hồ Đỗ Thị Cẩm

25 tháng 6 2018

Em tham khảo bài này nha:

Hóa thạch là gì?

Hóa thạch là những phần của động vật đã chết một thời gian rất lâu trước đây. Bạn có thể tìm thấy những hóa thạch trong những hốc đá. Bạn có thể nhìn thấy hình dạng của động vật. Một vài hóa thạch đã hơn 500 triệu năm tuổi.

Tại sao hóa thạch lại quan trọng?

Hóa thạch cho chúng ta thấy về quá khứ.Chúng ta có thể học về những loại đá và về những động vật đã sống một thời gian rất lâu trước đây.

Bạn có thể tìm thấy hóa thạch ở đâu?

Bạn có thể tìm thấy hóa thạch ở nhiều nơi.

Bạn có thể tìm thấy chúng ở những ngọn núi và hồ.Bạn có thể tìm thấy chúng ở những con sông và biển.Bạn cũng có thể tìm thấy chúng ở dưới đất.

Làm thế nào để tôi có thể nhìn thấy một hóa thạch?

Bạn có thể viếng thăm một bảo tàng để nhìn thấy những hóa thạch hoặc bạn có thể mua chúng ở những cửa hàng bán hóa thạch. Bạn cũng có thể nhìn thấy hóa thạch trên những bãi biển. Đôi khi, bạn có thể thấy chúng trên cát hoặc trong hốc đá.

Đây là hóa thạch của một con cúc( thứ vỏ ốc hóa đá) . Những động vật này đã sống ở biển khoảng 400 triệu năm trước đây. Ngày nay, bạn có thể tìm những hóa thạch này trên bờ biển ở Anh.

Đây là hóa thạch của một ....( hình như em ghi thiếu chữ h trong từ whale là cá voi đúng hông, chứ wale có nghĩa là vết lằn hay gì đó tương tự, xem lại đi nha). Nhà nghiên cứu khoa học đã tìm thấy nó ở Sa mạc phía tây ở Egypt. Hàng triệu năm về trước Sa mạc phía tây từng là một bãi biển.

Hết rồi đó, nhưng mà chị hổng phải phiên dịch viên nên lời văn hơi lũng cũng @_@, xin lỗi em nha!

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PH

Phan Hà Thanh

4 tháng 7 2019

Unlike buried treasure and some minerals, fossils are usually not valuable in themselves. However, most of the fossils you find will be of greatest value to you. They will help you learn much about the geologic history of the earth and its inhabitants. If it were not for fossils, we would have no way of knowing about the animals that once roamed the earth or that once crawled on the bottom of the ancient seas. In fact, we would not even know for sure that there were once seas in some regions...

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Unlike buried treasure and some minerals, fossils are usually not valuable in themselves. However, most of the fossils you find will be of greatest value to you. They will help you learn much about the geologic history of the earth and its inhabitants.

If it were not for fossils, we would have no way of knowing about the animals that once roamed the earth or that once crawled on the bottom of the ancient seas. In fact, we would not even know for sure that there were once seas in some regions if it were not for the many fossils of sea animals that we find there.

You can look at some fossils and see for yourself the shape of the ancient animals. Even if you collect only bits of one kind of fossil, you may still be able to tell what it looked like. Making sense out of fossil bits is a little like working a jigsaw puzzle. Sometimes you will lose pieces, but you can still recognize the picture and even use your imagination to fill in missing details. The habits of ancient sea animals are not so easy to determine. Therefore, scientists study the structure and the habits of similar living animals to learn what the ancient ones must have been like. There are some things, however, that neither the study of fossils nor the study of living animals can tell us. For example, no one knows what colour most ancient sea animals were. Also, since the soft parts disappeared soon after death, many details of their internal structure are unknown. So the pictures of ancient sea creatures (as well as dinosaurs!) are what scientists think the animals looked like. Reconstructing the life of an ancient sea animal on the basis of fossil evidence and the characteristics of similar living animals is a little like relying on circumstantial evidence in court.

1. This passage is mainly about animals that __________.

A. have very tough hides

B. once lived on the earth

C. inhabit the seas of today

D. are becoming extinct

2. With the help of fossils we can __________.

A. reconstruct life of the past

B. predict the future

C. explain the changes of the seasons

D. save some species of animals from extinction

3. Many details of ancient animals are lacking because __________.

A. many species have not been found

B. volcanic disasters have permanently buried many fossils

C.many fossils lie in deep water and cannot be recovered

D. soon after death the soft parts of the body decay

49. To “determine" in the passage is closest in meaning to __________.

A. come across

B. study

C. find out

D. imitate

50. This passage implies that a scientist's evaluation of the past is based on __________.

A. laboratory experiments with live animals

B. a few facts mixed with a lot of opinions

C. predictions made in the past and present

D. field studies of our society

#Hỏi cộng đồng OLM #Tiếng anh lớp 8

1

LT

Lê Thanh Nhàn

4 tháng 7 2019

1 B. once lived on the earth

2 A. reconstruct life of the past

3 D. soon after death the soft parts of the body decay

4 C. find out

5 B. a few facts mixed with a lot of opinions

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LQ

Lê Quỳnh Anh

15 tháng 4 2017

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50. Life originated in the early seas less than a billion years after the Earth was formed. Yet another three billion years were to pass before the first plants and animals appeared on the continents. Life’s transition from the sea to the land was perhaps as much of an evolutionary challenge as was the genesis of...

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Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

          Life originated in the early seas less than a billion years after the Earth was formed. Yet another three billion years were to pass before the first plants and animals appeared on the continents. Life’s transition from the sea to the land was perhaps as much of an evolutionary challenge as was the genesis of life.
          What forms of life were able to make such a drastic change in lifestyle? The traditional view of the first terrestrial organisms is based on mega fossils-relatively large specimens of essentially whole plants and animals. Vascular plants, related to modern seed plants and ferns, left the first comprehensive mega fossil record. Because of this, it has been commonly assumed that the sequence of terrestrialization reflected the evolution of modern terrestrial ecosystems. In this view, primitive vascular plants first colonized the margins of continental waters, followed by animals that feed on the plants, and lastly by animals that preyed on the plant-eaters. Moreover, the mega fossils suggest that terrestrial life appeared and diversified explosively near the boundary between the Silurian and the Devonian periods, a little more than 400 million years ago.
          Recently, however, paleontologists have been taking a closer look at the sediments below this Silurian-Devonian geological boundary. It turns out that some fossils can be extracted from these sediments by putting the rocks in an acid bath. The technique has uncovered new evidence form sediments that were deposited near the shores of the ancient oceans- plant microfossils and microscopic pieces of small animals. In many instances the specimens are less than one-tenth of a millimeter in diameter. Although they were entombed in the rocks for hundreds of millions of years, many of them fossils consist of the organic remains of the organism.
          These newly discovered fossils have not only revealed the existence of previously unknown organisms, but have also pushed back these dates for the invasion of land by multicellular organisms. Our views about the nature of the early plant and animal communities are now being revised. And with those revisions come new speculations about the first terrestrial life-forms

What can be inferred from the passage about the fossils mentioned in the third paragraph?

A. They have not been helpful in understanding the evolution of terrestrial life

B. They were found in approximately the same numbers as vascular plant fossils

C. They are older than the mega fossils.

D. They consist of modern life-forms

#Hỏi cộng đồng OLM #Mẫu giáo

1

DH

Dương Hoàn Anh

15 tháng 4 2017

Đáp án C

Có thế thấy được điều gì về những hóa thạch được đề cập trong đoạn văn thứ 3?
A. Chúng không giúp ích gì về việc tìm hiểu sự tiến hóa của quần thể trên cạn
B. Số lượng được tìm thấy xấp xỉ bằng hóa thạch của thực vật có mạch
C. Chúng già hơn các đại hóa thạch
D. Chúng gồm các dạng sinh thể hiện đại
Dẫn chứng : “Moreover, the mega fossils suggest that terrestrial life appeared and diversified explosively near the boundary between the Silurian and the Devonian periods, a little more than 400 million years ago” “Although they were entombed in the rocks for hundreds of millions of years, many of them fossils consist of the organic remains of the organism.”

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LQ

Lê Quỳnh Anh

25 tháng 10 2018

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 44 to 50.Life originated in the early seas less than a billion years after Earth was formed. Yet another three billion years were to pass before the first plants and animals appeared on the continents. Life's transition from the sea to the land was perhaps as much of an evolutionary challenge as was the genesis of life.What forms of life were able to...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 44 to 50.

Life originated in the early seas less than a billion years after Earth was formed. Yet another three billion years were to pass before the first plants and animals appeared on the continents. Life's transition from the sea to the land was perhaps as much of an evolutionary challenge as was the genesis of life.

What forms of life were able to make such a drastic change in lifestyle? The traditional view of the first terrestrial organisms is based on mega fossils — relatively large specimens of essentially whole plants and animals. Vascular plants, related to modern seed plants and ferns, left the first comprehensive mega fossil record. Because of this, it has been commonly assumed that the sequence of terrestrialization reflected the evolution of modern terrestrial ecosystems. In this view, primitive vascular plants first colonized the margins of continental waters, followed by animals that fed on the plants, and lastly by animals that preyed on the plant-eaters. Moreover, the mega fossils suggest that terrestrial life appeared and diversified explosively near the boundary between the Silurian and the Devonian periods, a little more than 400 million years ago. Recently, however, paleontologists have been taking a closer look at the sediments below this Silurian-Devonian geological boundary. It turns out that some fossils can be extracted from these sediments by putting the rocks in an acid bath. The technique has uncovered new evidence from sediments that were deposited near the shores of the ancient oceans — plant microfossils and microscopic pieces of small animals. In many instances the specimens are less than one-tenth of a millimeter in diameter. Although they were entombed in the rocks for hundreds of millions of years, many of the fossils consist of the organic remains of the organism.

These newly discovered fossils have not only revealed the existence of previously unknown organisms, but have also pushed back these dates for the invasion of land by multicellular organisms. Our views about the nature of the early plant and animal communities are now being revised. And with those revisions come new speculations about the first terrestrial life-forms.

What can be inferred from the passage about the fossils mentioned in lines 17-20?

A. They have not been helpful in understanding the evolution of terrestrial life

B. They were found in approximately the same numbers as vascular plant fossils

C. They are older than the mega fossils

D. They consist of modern life-forms

#Hỏi cộng đồng OLM #Mẫu giáo

1

DH

Dương Hoàn Anh

25 tháng 10 2018

Đáp án C

Giải thích: The technique has uncovered new evidence from sediments that were deposited near the shores of the ancient oceans — plant microfossils and microscopic pieces of small animals … These newly discovered fossils have not only revealed the existence of previously unknown organisms, but have also pushed back these dates for the invasion of land by multicellular organisms.

Dịch nghĩa: Kỹ thuật này đã phát hiện bằng chứng mới từ trầm tích được lắng đọng gần bờ biển của các đại dương cổ đại - vi cổ thực vật và các mảnh hiển vi của động vật nhỏ ... Những hóa thạch mới được phát hiện này không chỉ cho thấy sự tồn tại của những sinh vật chưa từng được biết, mà còn cũng đẩy lùi ngày tháng cho cuộc xâm chiếm đất đai của các sinh vật đa bào.

Như vậy có thể suy ra rằng hóa thạch mới được phát hiện cổ đại hơn những hóa thạch khổng lồ nhiều. Phương án C. They are older than the mega fossils = Chúng lâu đời hơn các hóa thạch khổng lồ.

A. They have not been helpful in understanding the evolution of terrestrial life = Chúng đã không hữu ích trong việc tìm hiểu sự tiến hóa của sự sống trên cạn.

B. They were found in approximately the same numbers as vascular plant fossils = Chúng được tìm thấy trong số lượng xấp xỉ như hóa thạch thực vật có mạch.

D. They consist of modern life-forms = Chúng bao gồm các hình thái sự sống hiện đại.

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ST

Sarah Trần

23 tháng 4 2020

Read the text and choose the answer (A, B, C or D) which you think fits best according to the text. (10pts) Life originated in the early seas less than a billion years after the Earth was formed. Yet another three billion years were to pass before the first plants and animals appeared on the continents. Life's transition from the sea to the land was perhaps as much of an evolutionary challenge as was the genesis of life.What forms of life were able to make such a drastic change in lifestyle?...

Đọc tiếp

Read the text and choose the answer (A, B, C or D) which you think fits best according to the text. (10pts) Life originated in the early seas less than a billion years after the Earth was formed. Yet another three billion years were to pass before the first plants and animals appeared on the continents. Life's transition from the sea to the land was perhaps as much of an evolutionary challenge as was the genesis of life.What forms of life were able to make such a drastic change in lifestyle? The traditional view of the first terrestrial organisms is based on mega fossils-relatively large specimens of essentially whole plants and animal. Vascular plants, related to modern seed plants and ferns, left the first comprehensive mega fossil record. Because of this, it has been commonly assumed that the sequence of terrestrialization reflected the evolution of modern terrestrial ecosystems. In this view, primitive vascular plants first colonized the margins of continental waters, followed by animals that fed on the plants, and lastly by animals that preyed on the plant-eater. Moreover,the mega fossils suggest that terrestrial life appeared and diversified explosively near the boundary between the Silurian and the Devonian periods, a little more than 400 million years ago.Recently, however, paleontologists have been taking a closer look at the sediments below this Silurian-Devonian geological boundary. It turns out that some fossils can be extracted from these sediments by putting the rocks in an acid bath. The technique has uncovered new evidence from sediments that were deposited near the shores of the ancient oceans-plant microfossils and microscopic pieces of small animals. In many instances the specimens are less than one-tenth of a millimeter in diameter. Although they were entombed in the rocks for hundreds of millions of years, many of the fossils consist of the organic remains of the organism.These newly discovered fossils have not only revealed the existence of previously unknown organisms, but have also pushed back these dates for the invasion of land by multi-cellular organisms. Our views about the nature of the early plant and animal communities are now being revised. And with those revisions come new speculations about the first terrestrial life-forms.

11. The word "drastic" in line 5 is closest in meaning to

(A) widespread (B) radial (C) progressive (D) risky

12. According to the theory that the author calls "the traditional view", what was the first form of life to appear on land?

(A) Bacteria (B) Meat-eating animals

(C) Plant-eating animals (D) Vascular plants

13. According to the passage, what happened about 400 million years ago?

(A) Many terrestrial life-forms died out.

(B) New life-forms on land developed at a rapid rate.

(C) The mega fossils were destroyed by floods.

(D) Life began to develop in the ancient seas.

14. The word "extracted" in line 18 is closest in meaning to

(A) located (B) preserved (C) removed (D) studied

15. What can be inferred from the passage about the fossils mentioned in lines 17-20?

(A) They have not been helpful in understanding the evolution of terrestrial life.

(B) They were found in approximately the same numbers as vascular plant fossils.

(C) They are older than the mega fossils.

(D) They consist of modern life forms.
16. The word "instances" in line 21 is closest in meaning to

(A) methods (B) processes (C) cases (D) reasons

17. The word "they" in line 22 refers to

(A) rocks (B) shores (C) oceans (D) specimens

18. The word "entombed" in line 22 is closest in meaning to

(A) crushed (B) trapped (C) produced (D) excavated

19. Which of the following resulted from the discovery of microscopic fossils?

(A) The time estimate for the first appearance of terrestrial life-forms was revised

(B) Old techniques for analyzing fossils were found to have new uses.

(C) The origins of primitive sea life were explained.

(D) Assumptions about the locations of ancient seas were changed.

20. With which of the following conclusions would the author probably agree?

(A) The evolution of terrestrial life was as complicated as the origin of life itself.

(B) The discovery of microfossils supports the traditional view of how terrestrial life evolved.

(C) New species have appeared at the same rate over the course of the last 400 million years.

(D) The technology used by paleontologists is too primitive to make accurate determinations about ages of fossils.

#Hỏi cộng đồng OLM #Tiếng anh thí điểm lớp 10

1

VB

Võ Bảo Vân

24 tháng 4 2020

Read the text and choose the answer (A, B, C or D) which you think fits best according to the text. (10pts) Life originated in the early seas less than a billion years after the Earth was formed. Yet another three billion years were to pass before the first plants and animals appeared on the continents. Life's transition from the sea to the land was perhaps as much of an evolutionary challenge as was the genesis of life.What forms of life were able to make such a drastic change in lifestyle? The traditional view of the first terrestrial organisms is based on mega fossils-relatively large specimens of essentially whole plants and animal. Vascular plants, related to modern seed plants and ferns, left the first comprehensive mega fossil record. Because of this, it has been commonly assumed that the sequence of terrestrialization reflected the evolution of modern terrestrial ecosystems. In this view, primitive vascular plants first colonized the margins of continental waters, followed by animals that fed on the plants, and lastly by animals that preyed on the plant-eater. Moreover,the mega fossils suggest that terrestrial life appeared and diversified explosively near the boundary between the Silurian and the Devonian periods, a little more than 400 million years ago.Recently, however, paleontologists have been taking a closer look at the sediments below this Silurian-Devonian geological boundary. It turns out that some fossils can be extracted from these sediments by putting the rocks in an acid bath. The technique has uncovered new evidence from sediments that were deposited near the shores of the ancient oceans-plant microfossils and microscopic pieces of small animals. In many instances the specimens are less than one-tenth of a millimeter in diameter. Although they were entombed in the rocks for hundreds of millions of years, many of the fossils consist of the organic remains of the organism.These newly discovered fossils have not only revealed the existence of previously unknown organisms, but have also pushed back these dates for the invasion of land by multi-cellular organisms. Our views about the nature of the early plant and animal communities are now being revised. And with those revisions come new speculations about the first terrestrial life-forms.

11. The word "drastic" in line 5 is closest in meaning to

(A) widespread (B) radial (C) progressive (D) risky

12. According to the theory that the author calls "the traditional view", what was the first form of life to appear on land?

(A) Bacteria (B) Meat-eating animals

(C) Plant-eating animals (D) Vascular plants

13. According to the passage, what happened about 400 million years ago?

(A) Many terrestrial life-forms died out.

(B) New life-forms on land developed at a rapid rate.

(C) The mega fossils were destroyed by floods.

(D) Life began to develop in the ancient seas.

14. The word "extracted" in line 18 is closest in meaning to

(A) located (B) preserved (C) removed (D) studied

15. What can be inferred from the passage about the fossils mentioned in lines 17-20?

(A) They have not been helpful in understanding the evolution of terrestrial life.

(B) They were found in approximately the same numbers as vascular plant fossils.

(C) They are older than the mega fossils.

(D) They consist of modern life forms.
16. The word "instances" in line 21 is closest in meaning to

(A) methods (B) processes (C) cases (D) reasons

17. The word "they" in line 22 refers to

(A) rocks (B) shores (C) oceans (D) specimens

18. The word "entombed" in line 22 is closest in meaning to

(A) crushed (B) trapped (C) produced (D) excavated

19. Which of the following resulted from the discovery of microscopic fossils?

(A) The time estimate for the first appearance of terrestrial life-forms was revised

(B) Old techniques for analyzing fossils were found to have new uses.

(C) The origins of primitive sea life were explained.

(D) Assumptions about the locations of ancient seas were changed.

20. With which of the following conclusions would the author probably agree?

(A) The evolution of terrestrial life was as complicated as the origin of life itself.

(B) The discovery of microfossils supports the traditional view of how terrestrial life evolved.

(C) New species have appeared at the same rate over the course of the last 400 million years.

(D) The technology used by paleontologists is too primitive to make accurate determinations about ages of fossils.

#maymay#

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LQ

Lê Quỳnh Anh

12 tháng 8 2018

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 44 to 50.Life originated in the early seas less than a billion years after Earth was formed. Yet another three billion years were to pass before the first plants and animals appeared on the continents. Life's transition from the sea to the land was perhaps as much of an evolutionary challenge as was the genesis of life.What forms of life were able to...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 44 to 50.

Life originated in the early seas less than a billion years after Earth was formed. Yet another three billion years were to pass before the first plants and animals appeared on the continents. Life's transition from the sea to the land was perhaps as much of an evolutionary challenge as was the genesis of life.

What forms of life were able to make such a drastic change in lifestyle? The traditional view of the first terrestrial organisms is based on mega fossils — relatively large specimens of essentially whole plants and animals. Vascular plants, related to modern seed plants and ferns, left the first comprehensive mega fossil record. Because of this, it has been commonly assumed that the sequence of terrestrialization reflected the evolution of modern terrestrial ecosystems. In this view, primitive vascular plants first colonized the margins of continental waters, followed by animals that fed on the plants, and lastly by animals that preyed on the plant-eaters. Moreover, the mega fossils suggest that terrestrial life appeared and diversified explosively near the boundary between the Silurian and the Devonian periods, a little more than 400 million years ago. Recently, however, paleontologists have been taking a closer look at the sediments below this Silurian-Devonian geological boundary. It turns out that some fossils can be extracted from these sediments by putting the rocks in an acid bath. The technique has uncovered new evidence from sediments that were deposited near the shores of the ancient oceans — plant microfossils and microscopic pieces of small animals. In many instances the specimens are less than one-tenth of a millimeter in diameter. Although they were entombed in the rocks for hundreds of millions of years, many of the fossils consist of the organic remains of the organism.

These newly discovered fossils have not only revealed the existence of previously unknown organisms, but have also pushed back these dates for the invasion of land by multicellular organisms. Our views about the nature of the early plant and animal communities are now being revised. And with those revisions come new speculations about the first terrestrial life-forms.

According to the passage, what happened about 400 million years ago?

A. Many terrestrial life-forms died out

B. New life-forms on land developed at a rapid rate

C. The mega fossils were destroyed by floods

D. Life began to develop in the ancient seas

#Hỏi cộng đồng OLM #Mẫu giáo

1

DH

Dương Hoàn Anh

12 tháng 8 2018

Đáp án B

Thông tin: Moreover, the mega fossils suggest that terrestrial life appeared and diversified explosively near the boundary between the Silurian and the Devonian periods, a little more than 400 million years ago.

Dịch nghĩa: Hơn nữa, các hóa thạch khổng lồ cho thấy rằng cuộc sống trên mặt đất xuất hiện và đa dạng hóa một cách bùng nổ gần ranh giới giữa các giai đoạn Silur và Devon, ít hơn 400 triệu năm trước.

Như vậy phương án B. New life-forms on land developed at a rapid rate = Các hình thức sự sống mới trên mặt đất phát triển với một tốc độ nhanh chóng; là phương án chính xác nhất.

A. Many terrestrial life-forms died out = Nhiều hình thái sự sống trên mặt đất chết đi.

C. The mega fossils were destroyed by floods = Hóa thạch khổng lồ đã bị phá hủy bởi lũ lụt.

D. Life began to develop in the ancient seas = Cuộc sống bắt đầu phát triển ở các vùng biển cổ đại.

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LQ

Lê Quỳnh Anh

17 tháng 8 2019

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50. Life originated in the early seas less than a billion years after the Earth was formed. Yet another three billion years were to pass before the first plants and animals appeared on the continents. Life’s transition from the sea to the land was perhaps as much of an evolutionary challenge as was the genesis of...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

          Life originated in the early seas less than a billion years after the Earth was formed. Yet another three billion years were to pass before the first plants and animals appeared on the continents. Life’s transition from the sea to the land was perhaps as much of an evolutionary challenge as was the genesis of life.
          What forms of life were able to make such a drastic change in lifestyle? The traditional view of the first terrestrial organisms is based on mega fossils-relatively large specimens of essentially whole plants and animals. Vascular plants, related to modern seed plants and ferns, left the first comprehensive mega fossil record. Because of this, it has been commonly assumed that the sequence of terrestrialization reflected the evolution of modern terrestrial ecosystems. In this view, primitive vascular plants first colonized the margins of continental waters, followed by animals that feed on the plants, and lastly by animals that preyed on the plant-eaters. Moreover, the mega fossils suggest that terrestrial life appeared and diversified explosively near the boundary between the Silurian and the Devonian periods, a little more than 400 million years ago.
          Recently, however, paleontologists have been taking a closer look at the sediments below this Silurian-Devonian geological boundary. It turns out that some fossils can be extracted from these sediments by putting the rocks in an acid bath. The technique has uncovered new evidence form sediments that were deposited near the shores of the ancient oceans- plant microfossils and microscopic pieces of small animals. In many instances the specimens are less than one-tenth of a millimeter in diameter. Although they were entombed in the rocks for hundreds of millions of years, many of them fossils consist of the organic remains of the organism.
          These newly discovered fossils have not only revealed the existence of previously unknown organisms, but have also pushed back these dates for the invasion of land by multicellular organisms. Our views about the nature of the early plant and animal communities are now being revised. And with those revisions come new speculations about the first terrestrial life-forms

According to the passage, what happened about 400 million years ago?

A. Many terrestrial life-forms died out

B. New life-forms on land developed at a rapid rate

C. The mega fossils were destroyed by floods

D. Life began to develop in the ancient seas

#Hỏi cộng đồng OLM #Mẫu giáo

1

DH

Dương Hoàn Anh

17 tháng 8 2019

Đáp án B

Theo đoạn văn, điều gì đã diễn ra 400 năm về trước ?
A. Nhiều sinh thể trên cạn tiệt chủng
B. Nhiều dạng thể sống mới trên cạn phát triển với tốc độ nhanh
C. Đại hóa thạch bị hủy bởi bão lũ
D. Sự sống bắt đầu phát triển ở những biển cổ đại.
Dẫn chứng: “Moreover, the mega fossils suggest that terrestrial life appeared and diversified explosively near the boundary between the Silurian and the Devonian periods, a little more than 400 million years ago.” ( Hơn thế, nhiều đại hóa thạch đã thể hiện rằng sự sống trên cạn đã xuất hiện và đa dạng hóa trong khoảng giữa giai đoạn Silur và giai đoạn Devon, khoảng hơn 400 năm trước.)

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LQ

Lê Quỳnh Anh

15 tháng 7 2017

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 44 to 50.Life originated in the early seas less than a billion years after Earth was formed. Yet another three billion years were to pass before the first plants and animals appeared on the continents. Life's transition from the sea to the land was perhaps as much of an evolutionary challenge as was the genesis of life.What forms of life were able to...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 44 to 50.

Life originated in the early seas less than a billion years after Earth was formed. Yet another three billion years were to pass before the first plants and animals appeared on the continents. Life's transition from the sea to the land was perhaps as much of an evolutionary challenge as was the genesis of life.

What forms of life were able to make such a drastic change in lifestyle? The traditional view of the first terrestrial organisms is based on mega fossils — relatively large specimens of essentially whole plants and animals. Vascular plants, related to modern seed plants and ferns, left the first comprehensive mega fossil record. Because of this, it has been commonly assumed that the sequence of terrestrialization reflected the evolution of modern terrestrial ecosystems. In this view, primitive vascular plants first colonized the margins of continental waters, followed by animals that fed on the plants, and lastly by animals that preyed on the plant-eaters. Moreover, the mega fossils suggest that terrestrial life appeared and diversified explosively near the boundary between the Silurian and the Devonian periods, a little more than 400 million years ago. Recently, however, paleontologists have been taking a closer look at the sediments below this Silurian-Devonian geological boundary. It turns out that some fossils can be extracted from these sediments by putting the rocks in an acid bath. The technique has uncovered new evidence from sediments that were deposited near the shores of the ancient oceans — plant microfossils and microscopic pieces of small animals. In many instances the specimens are less than one-tenth of a millimeter in diameter. Although they were entombed in the rocks for hundreds of millions of years, many of the fossils consist of the organic remains of the organism.

These newly discovered fossils have not only revealed the existence of previously unknown organisms, but have also pushed back these dates for the invasion of land by multicellular organisms. Our views about the nature of the early plant and animal communities are now being revised. And with those revisions come new speculations about the first terrestrial life-forms.

Which of the following resulted from the discovery of microscopic fossils?

A. The time estimate for the first appearance of terrestrial life-forms was revised

B. Old techniques for analyzing fossils were found to have new uses

C. The origins of primitive sea life were explained

D. Assumptions about the locations of ancient seas were changed

#Hỏi cộng đồng OLM #Mẫu giáo

1

DH

Dương Hoàn Anh

15 tháng 7 2017

Đáp án A

Thông tin: These newly discovered fossils have not only revealed the existence of previously unknown organisms, but have also pushed back these dates for the invasion of land by multicellular organisms.

Dịch nghĩa: Những hóa thạch mới được phát hiện này không chỉ cho thấy sự tồn tại của những sinh vật chưa từng được biết, mà còn cũng đẩy lùi ngày tháng cho cuộc xâm chiếm đất đai của các sinh vật đa bào.

Phương án A. The time estimate for the first appearance of terrestrial life-forms was revised = Ước tính thời gian cho sự xuất hiện đầu tiên của các hình thái sự sống trên mặt đất đã được sửa đổi, là phương án chính xác nhất.

B. Old techniques for analyzing fossils were found to have new uses = Các phương pháp phân tích hóa thạch cũ được tìm ra là có những ứng dụng mới.

Không có thông tin như vậy trong bài.

C. The origins of primitive sea life were explained = Nguồn gốc của cuộc sống biển nguyên thủy đã được giải thích.

Không có thông tin như vậy trong bài.

D. Assumptions about the locations of ancient seas were changed = Giả định về vị trí của vùng biển cổ đại đã được thay đổi.

Không có thông tin như vậy trong bài.

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LQ

Lê Quỳnh Anh

22 tháng 5 2018

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50. Life originated in the early seas less than a billion years after the Earth was formed. Yet another three billion years were to pass before the first plants and animals appeared on the continents. Life’s transition from the sea to the land was perhaps as much of an evolutionary challenge as was the genesis of...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

          Life originated in the early seas less than a billion years after the Earth was formed. Yet another three billion years were to pass before the first plants and animals appeared on the continents. Life’s transition from the sea to the land was perhaps as much of an evolutionary challenge as was the genesis of life.
          What forms of life were able to make such a drastic change in lifestyle? The traditional view of the first terrestrial organisms is based on mega fossils-relatively large specimens of essentially whole plants and animals. Vascular plants, related to modern seed plants and ferns, left the first comprehensive mega fossil record. Because of this, it has been commonly assumed that the sequence of terrestrialization reflected the evolution of modern terrestrial ecosystems. In this view, primitive vascular plants first colonized the margins of continental waters, followed by animals that feed on the plants, and lastly by animals that preyed on the plant-eaters. Moreover, the mega fossils suggest that terrestrial life appeared and diversified explosively near the boundary between the Silurian and the Devonian periods, a little more than 400 million years ago.
          Recently, however, paleontologists have been taking a closer look at the sediments below this Silurian-Devonian geological boundary. It turns out that some fossils can be extracted from these sediments by putting the rocks in an acid bath. The technique has uncovered new evidence form sediments that were deposited near the shores of the ancient oceans- plant microfossils and microscopic pieces of small animals. In many instances the specimens are less than one-tenth of a millimeter in diameter. Although they were entombed in the rocks for hundreds of millions of years, many of them fossils consist of the organic remains of the organism.
          These newly discovered fossils have not only revealed the existence of previously unknown organisms, but have also pushed back these dates for the invasion of land by multicellular organisms. Our views about the nature of the early plant and animal communities are now being revised. And with those revisions come new speculations about the first terrestrial life-forms

Which of the following resulted from the discovery of microscopic fossils?

A. Which of the following resulted from the discovery of microscopic fossils?

B. Old techniques for analyzing fossils were found to have new uses

C. The origins of primitive sea life were explained

D. Assumptions about the locations of ancient seas were changed

#Hỏi cộng đồng OLM #Mẫu giáo

1

DH

Dương Hoàn Anh

22 tháng 5 2018

Đáp án A

Điều gì có thể suy được từ việc phát hiện ra vi hóa thạch ?
A. Ước tính thời gian cho sự xuất hiện đầu tiên của mặt đất sống hình thức đã được thay đổi.
B. Kĩ thuật cũ để phân tích hóa thạch được cho là có những cách dùng mới
C. Giải thích được nguồn goccs ra đời của sinh thể biển nguyên thủy
D. Giả định về vị trí của vùng biển cổ đại đã được thay đổi.
Dẫn chứng:” These newly discovered fossils have not only revealed the existence of previously unknown organisms, but have also pushed back these dates for the invasion of land by multicellular organisms.”

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LQ

Lê Quỳnh Anh

28 tháng 10 2019

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 44 to 50.Life originated in the early seas less than a billion years after Earth was formed. Yet another three billion years were to pass before the first plants and animals appeared on the continents. Life's transition from the sea to the land was perhaps as much of an evolutionary challenge as was the genesis of life.What forms of life were able to...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 44 to 50.

Life originated in the early seas less than a billion years after Earth was formed. Yet another three billion years were to pass before the first plants and animals appeared on the continents. Life's transition from the sea to the land was perhaps as much of an evolutionary challenge as was the genesis of life.

What forms of life were able to make such a drastic change in lifestyle? The traditional view of the first terrestrial organisms is based on mega fossils — relatively large specimens of essentially whole plants and animals. Vascular plants, related to modern seed plants and ferns, left the first comprehensive mega fossil record. Because of this, it has been commonly assumed that the sequence of terrestrialization reflected the evolution of modern terrestrial ecosystems. In this view, primitive vascular plants first colonized the margins of continental waters, followed by animals that fed on the plants, and lastly by animals that preyed on the plant-eaters. Moreover, the mega fossils suggest that terrestrial life appeared and diversified explosively near the boundary between the Silurian and the Devonian periods, a little more than 400 million years ago. Recently, however, paleontologists have been taking a closer look at the sediments below this Silurian-Devonian geological boundary. It turns out that some fossils can be extracted from these sediments by putting the rocks in an acid bath. The technique has uncovered new evidence from sediments that were deposited near the shores of the ancient oceans — plant microfossils and microscopic pieces of small animals. In many instances the specimens are less than one-tenth of a millimeter in diameter. Although they were entombed in the rocks for hundreds of millions of years, many of the fossils consist of the organic remains of the organism.

These newly discovered fossils have not only revealed the existence of previously unknown organisms, but have also pushed back these dates for the invasion of land by multicellular organisms. Our views about the nature of the early plant and animal communities are now being revised. And with those revisions come new speculations about the first terrestrial life-forms.

According to the theory that the author calls “the traditional view,” what was the first form of life to appear on land?

A. Bacteria

B. Meat-eating animals

C. Plant-eating animals

D. Plant-eating animals

#Hỏi cộng đồng OLM #Mẫu giáo

1

DH

Dương Hoàn Anh

28 tháng 10 2019

Đáp án D

Thông tin: The traditional view of the first terrestrial organisms is based on mega fossils — relatively large specimens of essentially whole plants and animals. Vascular plants, related to modern seed plants and ferns, left the first comprehensive mega fossil record.

Dịch nghĩa: Quan niệm truyền thống về các sinh vật trên cạn đầu tiên được dựa trên những hóa thạch lớn - mẫu vật tương đối lớn về cơ bản toàn bộ cây và động vật. Thực vật có mạch, liên quan đến cây có hạt hiện đại và dương xỉ, để lại các mẫu hóa thạch khổng lồ toàn diện đầu tiên.

Như vậy có thể hiểu là thực vật có mạch là sinh vật trên cạn đầu tiên. Phương án D. Vascular plants = thực vật có mạch; là phương án chính xác nhất.

A. Bacteria = vi khuẩn.

B. Meat-eating animals = động vật ăn thịt.

C. Plant-eating animals = động vật ăn cỏ.

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