20: According to the passage, which of the following sentence is NOT TRUE? C. There are water and trees on Earth.A. Earth is the only planet that has been known to host life.B. The World, the Blue Pla...

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Vũ khang

10 tháng 5 2023

20: According to the passage, which of the following sentence is NOT TRUE? C. There are water and trees on Earth.

A. Earth is the only planet that has been known to host life.

B. The World, the Blue Planet, or the Blue Marble are other names for Earth.

C. Thuyết Ace water anh trees on Earth.

D. Life on Mars is the same as the Earth's live.

#Tiếng anh thí điểm lớp 8

1

T

thaolinh

16 tháng 5 2023

D

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LQ

Lê Quỳnh Anh

3 tháng 2 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. Experts in climatology and other scientists are becoming extremely concerned about the changes to our climate which are taking place. Admittedly, climate changes have occurred on our planet before. For example, there have been several ice ages or glacial periods. These climatic changes, however, were different from the...

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.

          Experts in climatology and other scientists are becoming extremely concerned about the changes to our climate which are taking place. Admittedly, climate changes have occurred on our planet before. For example, there have been several ice ages or glacial periods.
          These climatic changes, however, were different from the modern ones in that they occurred gradually and, as far as we know, naturally. The changes currently being monitored are said to be the result not of natural causes, but of human activity. Furthermore, the rate of change is becoming alarmingly rapid.
          The major problem is that the planet appears to be warming up. According to some experts, this warming process, known as global warming, is occurring at a rate unprecedented in the last 10,000 years. The implications for the planet are very serious. Rising global temperatures could give rise to such ecological disasters as extremely high increases in the incidence of flooding and of droughts. These in turn could have a harmful effect on agriculture.
          It is thought that this unusual warming of the Earth has been caused by so-called greenhouse gases, such as carbon dioxide, being emitted into the atmosphere by car engines and modern industrial processes, for example. Such gases not only add to the pollution of the atmosphere, but also create a greenhouse effect, by which the heat of the sun is trapped. This leads to the warming up of the planet.
          Politicians are also concerned about climate change and there are now regular summits on the subject, attended by representatives from around 180 of the world’s industrialized countries. Of these summits, the most important took place in Kyotoin Japanin 1997. There it was agreed that the most industrialized countries would try to reduce the volume of greenhouse gas emissions and were given targets for this reduction of emissions.
          It was also suggested that more forests should be planted to create so-called sinks to absorb greenhouse gases. At least part of the problem of rapid climate change has been caused by too drastic deforestation.
          Sadly, the targets are not being met. Even more sadly, global warnings about climate changes are often still being regarded as scaremongering

Which of the following is NOT true, according to the passage?

A. Carbon dioxide is one of the gases that may cause the so-called greenhouse effect.

B. The so-called sinks created by forests can absorb greenhouse gases

C. The problem of rapid climate change has been caused mainly by deforestation

D. Politicians are among those who are concerned about climate change

#Mẫu giáo

1

DH

Dương Hoàn Anh

3 tháng 2 2019

Đáp án C

Dựa theo đoạn văn, điều gì là KHÔNG đúng?
A. Khí CO2 là một trong những loại khí gas mà có thể gây hiệu ứng nhà kính.
B. Cái tạo bởi rừng có thể hấp thụ khí gây ra hiệu ứng nhà kính.
C. Vấn đề về nhanh biến đổi khí hậu đã bị gây ra chủ yếu do nạn phá rừng.
D. Chính trị gia là trong số những người lo lắng về biến đổi khí hậu.
Giải thích:
Nội dung câu A được đề cập đến trong câu 1 đoạn 6. “It was also suggested that more forests should be planted to create so-called sinks to absorb greenhouse gases.” (Nó cũng là gợi ý rằng rừng hơn nên trồng để tạo “cái bồn” để hấp thụ khí gây ra hiệu ứng nhà kính.)
Nội dung câu B được đề cập đến trong câu 1 đoạn 5. “It is thought that this unusual warming of the Earth has been caused by so-called greenhouse gases, such as carbon dioxide, being emitted into the atmosphere by car engines and modern industrial processes, for example.” (Người ta nghĩ rằng sự nóng lên toàn cầu của Trái đất điều này là do khí gây ra hiệu ứng nhà kính, cái gọi là, như các - bô - ních, được phát ra vào không khí bằng xe hơi động cơ và quy trình công nghiệp hiện đại, chẳng hạn.)
Nội dung câu D được đề cập đến trong câu 2 đoạn 4. “Such gases not only add to the pollution of the atmosphere, but also create a greenhouse effect, by which the heat of the sun is trapped. This leads to the warming up of the planet.” (Khí như vậy không những thêm vào ô nhiễm không khí, mà còn tạo hiệu ứng nhà kính, theo đó sức nóng của mặt trời bị mắc kẹt. Điều này dẫn đến sưởi ấm lên của hành tinh. )
Nội dung câu C không đúng với bài : At least part of the problem of rapid climate change has been caused by too drastic deforestation. -> hiện tượng phá rừng chỉ là một trong những nguyên nhân chứ không phải nguyên nhân chủ yếu

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NM

Nguyễn Mai Linh

17 tháng 1 2018

I fill in the blank of the following passage with one suitable word.Write your answer on your answer sheet there is much more water than land.........the surface of the earth .The sea and oceans.........nearly four-fifths of the whole world , and only one-fifths of the whole world and only one fifth of........... land. If you traveled over the earth .........different directions you would have to spend much more of your time............on water than on roads or railways .We sometimes forget...

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#Tiếng anh lớp 8

2

NN

Nguyễn Ngô Minh Trí

17 tháng 1 2018

1.on

2.cover

3.the

4.in

5.moving

6.for

7.have

8.describle

9.is

10 .and

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S

_silverlining

17 tháng 1 2018

I fill in the blank of the following passage with one suitable word.Write your answer on your answer sheet

there is much more water than land..ON.......the surface of the earth .The sea and oceans.....COVER....nearly four-fifths of the whole world , and only one-fifths of the whole world and only one fifth of....THE....... land. If you traveled over the earth .....IN....different directions you would have to spend much more of your time.......MOVING.....on water than on roads or railways .We sometimes forget that......FOR....every mile of land there is four miles of water

there is much water on the surface of our earth that we ..HAVE.......to use two words to describe. We use the word seas to...DESCRIBE..... those parts of water surface which...IS........ only a few hundreds of milea wide the word oceans to describe the huge ares of water which are thousands of miles wide.....AND.....very deep

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LQ

Lê Quỳnh Anh

25 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 36 to 42. Jupiter is the largest and most massive planet and is fifth in order of distance from the sun. It is well placed for observation for several months in every year and on average is the brightest of the planets apart from Venus, though for relatively brief periods Mars may outshine it. Jupiter's less than 10 hour rotation period gives it the...

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 36 to 42.

Jupiter is the largest and most massive planet and is fifth in order of distance from the sun. It is well placed for observation for several months in every year and on average is the brightest of the planets apart from Venus, though for relatively brief periods Mars may outshine it. Jupiter's less than 10 hour rotation period gives it the shortest day in the solar system in so far as the principal planets are concerned. There are no true seasons on Jupiter because the axial inclination to the perpendicular of the orbital plane is only just over 3°-less than that for any other planet.

The most famous mark on Jupiter is the Great Red Spot. It has shown variations in both intensity and color, and at times it has been invisible, but it always returns after a few years. At its greatest extent it may be 40,000 kilometers long and 14,000 kilometers wide, so its surface area is greater than that of Earth. Though the latitude of the Red Spot varies little, it drifts about in longitude. Over the past century the total longitudinal drift has amounted to approximately 1200°. The latitude is generally very close to -22°. It was once thought that the Red Spot might be a solid or semisolid body floating in Jupiter's outer gas. However, the Pioneer and Voyager results have refuted that idea and proven the Red Spot to be a phenomenon of Jovian meteorology. Its longevity may well due to its exceptional size, but there are signs that it is decreasing in size, and it may not be permanent. Several smaller red spots have been seen occasionally but have not lasted.

According to the passage, which of the following is NOT true?

A. Jupiter is bigger than all the other planest in the solar system.

B. A day in Jupiter is nearly 10 hours long.

C. The Red Great Spot moves more vertically than horizontally.

D. Scientists have proof showing that smaller red spots are increasing their size to become other Great Red Spots.

#Mẫu giáo

1

DH

Dương Hoàn Anh

25 tháng 7 2017

Đáp án D

Theo đoạn văn, điều nào sau đây KHÔNG đúng?

A. Mộc tinh lớn hơn tất cả các hành tinh khác trong hệ mặt trời.

B. Một ngày ở sao Mộc kéo dài gần 10 giờ.

C. Điểm Đỏ di chuyển nhiều theo chiều dọc hơn chiều ngang.

D. Các nhà khoa học có bằng chứng cho thấy các đốm đỏ nhỏ hơn đang gia tăng kích thước của chúng để trở thành các Điểm Đỏ khác.

Dẫn chứng: “Several smaller red spots have been seen occasionally but have not 1asted." (Một số vết đỏ nhỏ hơn thi thoảng được nhìn thấy nhưng không kéo dài.)

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LQ

Lê Quỳnh Anh

22 tháng 2 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. Experts in climatology and other scientists are becoming extremely concerned about the changes to our climate which are taking place. Admittedly, climate changes have occurred on our planet before. For example, there have been several ice ages or glacial periods. These climatic changes, however, were different from the...

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.

          Experts in climatology and other scientists are becoming extremely concerned about the changes to our climate which are taking place. Admittedly, climate changes have occurred on our planet before. For example, there have been several ice ages or glacial periods.
          These climatic changes, however, were different from the modern ones in that they occurred gradually and, as far as we know, naturally. The changes currently being monitored are said to be the result not of natural causes, but of human activity. Furthermore, the rate of change is becoming alarmingly rapid.
          The major problem is that the planet appears to be warming up. According to some experts, this warming process, known as global warming, is occurring at a rate unprecedented in the last 10,000 years. The implications for the planet are very serious. Rising global temperatures could give rise to such ecological disasters as extremely high increases in the incidence of flooding and of droughts. These in turn could have a harmful effect on agriculture.
          It is thought that this unusual warming of the Earth has been caused by so-called greenhouse gases, such as carbon dioxide, being emitted into the atmosphere by car engines and modern industrial processes, for example. Such gases not only add to the pollution of the atmosphere, but also create a greenhouse effect, by which the heat of the sun is trapped. This leads to the warming up of the planet.
          Politicians are also concerned about climate change and there are now regular summits on the subject, attended by representatives from around 180 of the world’s industrialized countries. Of these summits, the most important took place in Kyotoin Japanin 1997. There it was agreed that the most industrialized countries would try to reduce the volume of greenhouse gas emissions and were given targets for this reduction of emissions.
          It was also suggested that more forests should be planted to create so-called sinks to absorb greenhouse gases. At least part of the problem of rapid climate change has been caused by too drastic deforestation.
          Sadly, the targets are not being met. Even more sadly, global warnings about climate changes are often still being regarded as scaremongering

According to the passage, agriculture could ____.

A. make the global warming more serious

B. be indirectly affected by the global temperature rises

C. give rise to many ecological disasters

D. be directly damaged by the rises in global temperature

#Mẫu giáo

1

DH

Dương Hoàn Anh

22 tháng 2 2018

Đáp án B

Dựa vào đoạn văn. nông nghiệp có thể ________.
A. làm cho sự nóng lên toàn cầu trở nên nghiêm trọng hơn
B. gián tiếp ảnh hưởng bởi nhiệt bộ tăng
C. thảm họa gia tăng
D. trực tiếp bị phá hủy bởi sự tăng lên của nhiệt độ toàn cầu.
Giải thích:
- Từ khóa: agriculture
- Từ khóa này được tìm thấy đầu tiên ở câu cuối đoạn 3: These in turn could have a harmful effect on agriculture. (Ngược lại, điều này có thể dẫn đến ảnh hưởng xấu đối với nông nghiệp). Tuy nhiên chúng ta không biết "these" ở đây là gì. Do vậy cần đọc thêm những câu trước đó và chúng ta biết "these" ở đây chính là "global temperature rises" => đáp án đúng là B

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LQ

Lê Quỳnh Anh

11 tháng 3 2017

Read the passage and mark A, B, C or D to indicate the correct answer to each of the questions. Jupiter is the largest and most massive planet and is fifth in order of distance from the sun. It is well placed for observation for several months in every year and on average is the brightest of the planets apart from Venus, though for relatively brief periods Mars may outshine it. Jupiter’s less than 10 hour rotation period gives it the shortest day in the solar system in so far as the principal...

Đọc tiếp

Read the passage and mark A, B, C or D to indicate the correct answer to each of the questions.

Jupiter is the largest and most massive planet and is fifth in order of distance from the sun. It is well placed for observation for several months in every year and on average is the brightest of the planets apart from Venus, though for relatively brief periods Mars may outshine it. Jupiter’s less than 10 hour rotation period gives it the shortest day in the solar system in so far as the principal planets are concerned. There are no true seasons on Jupiter because the axial inclination to the perpendicular of the orbital plane is only just over 3°-less than that for any other planet.

The most famous mark on Jupiter is the Great Red Spot. It has shown variations in both intensity and color, and at times it has been invisible, but it always returns after a few years. At its greatest extent it may be 40,000 kilometers long and 14,000 kilometers wide, so its surface area is greater than that of Earth. Though the latitude of the Red Spot varies little, it drifts about in longitude. Over the past century the total longitudinal drift has amounted to approximately 1200°. The latitude is generally very close to -22°. It was once thought that the Red Spot might be a solid or semisolid body floating in Jupiter’s outer gas. However, the Pioneer and Voyager results have refuted that idea and proven the Red Spot to be a phenomenon of Jovian meteorology. Its longevity may well due to its exceptional size, but there are signs that it is decreasing in size, and it may not be permanent. Several smaller red spots have been seen occasionally but have not lasted.
Question:According to the passge, which of the following is NOT true?

A. Jupiter is bigger than all the other planest in the solar system.

B. A day in Jupiter is nearly 10 hours long.

C. The Red Great Spot moves more vertically than horizontally.

D. Scientists have proof showing that smaller red spots are increasing their size to become other Great Red Spots.

#Mẫu giáo

1

DH

Dương Hoàn Anh

11 tháng 3 2017

Đáp án D

Kiến thức: Đọc hiểu

Giải thích:

Theođoạn văn, điều sau đây KHÔNG đúng?

A. Mộc tinh lớn hơn tất cả các hành tinh khác trong hệ mặt trời.

B. Một ngày ở sao Mộc kéo dài gần 10 giờ.

C. Điểm Đỏ di chuyển nhiều theo chiều dọc hơn chiều ngang.

D. Các nhà khoa học có bằng chứng cho thấy các đốm đỏ nhỏ hơn đang gia tăng kích thước của chúng để trở thành các Điểm Đỏ khác.

Dẫn chứng: Several smaller red spots have been seen occasionally but have not lasted.

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LQ

Lê Quỳnh Anh

27 tháng 12 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 28 to 34.Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. The rapid destruction of the tropical rain forests, which are the ecosystems with the highest known species diversity on Earth, has awakened people to the importance and fragility of biological diversity. The high rate of species...

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 28 to 34.

Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. The rapid destruction of the tropical rain forests, which are the ecosystems with the highest known species diversity on Earth, has awakened people to the importance and fragility of biological diversity. The high rate of species extinctions in these environments is jolting, but it is important to recognize the significance of biological diversity in all ecosystems. As the human population continues to expand, it will negatively affect one after another of Earth's ecosystems. In terrestrial ecosystems and in fringe marine ecosystems (such as wetlands), the most common problem is habitat destruction. In most situations, the result is irreversible. Now humans are beginning to destroy marine ecosystems through other types of activities, such as disposal and runoff of poisonous waste; in less than two centuries, by significantly reducing the variety of species on Earth, they have irrevocably redirected the course of evolution.

Certainly, there have been periods in Earth's history when mass extinctions have occurred. The extinction of the dinosaurs was caused by some physical event, either climatic or cosmic. There have also been less dramatic extinctions, as when natural competition between species reached an extreme conclusion. Only 0.01 percent of the species that have lived on Earth have survived to the present, and it was largely chance that determined which species survived and which died out.

However, nothing has ever equaled the magnitude and speed with which the human species is altering the physical and chemical world and demolishing the environment. In fact, there is wide agreement that it is the rate of change humans are inflicting, even more than the changes selves, that will lead to biological devastation. Life on Earth has continually been in flux as slow physical and chemical changes have occurred on Earth, but life needs time to adapt-time for migration and genetic adaptation within existing species and time for the proliferation of new genetic material and new species that may be able to survive in new environments
According to the passage, natural evolutionary change is different from changes caused by humans in that changes caused by humans___________.

A. affect fewer ecosystems

B. are occurring at a much faster rate

C. are reversible

D. are less devastating to most species

#Mẫu giáo

1

DH

Dương Hoàn Anh

27 tháng 12 2017

Đáp án B

Theo bài đọc, sự thay đổi về mặt tiến hóa tự nhiên thì khác với những thay đổi mà con người gây ra ở chỗ là những thay đổi mà con người gây ra ________________.

A. Ảnh hưởng tới ít hệ sinh thái hơn.

B. thì xảy ra ở tốc độ nhanh hơn nhiều

C. thì không có mặt trái

D. Thì ít tàn phá tới các loài.

Dẫn chứng: “However, nothing has ever equaled the magnitude and speed with which the human species is altering the physical and chemical world and demolishing the environment”

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LQ

Lê Quỳnh Anh

11 tháng 1 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 35 to 42. Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. The rapid destruction of the tropical rain forests, which are the ecosystems with the highest known species diversity on Earth, has awakened people to the importance and fragility of biological diversity. The high rate of species...

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 35 to 42.

Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. The rapid destruction of the tropical rain forests, which are the ecosystems with the highest known species diversity on Earth, has awakened people to the importance and fragility of biological diversity. The high rate of species extinctions in these environments is jolting, but it is important to recognize the significance of biological diversity in all ecosystems. As the human population continues to expand, it will negatively affect one after another of Earth’s ecosystems. In terrestrial ecosystems and in fringe marine ecosystems (such as wetlands), the most common problem is habitat destruction. In most situations, the result is irreversible. Now humans are beginning to destroy marine ecosystems through other types of activities, such as disposal and runoff of poisonous waste; in less than two centuries, by significantly reducing the variety of species on Earth, they have irrevocably redirected the course of evolution.

Certainly, there have been periods in Earth’s history when mass extinctions have occurred. The extinction of the dinosaurs was caused by some physical event, either climatic or cosmic. There have also been less dramatic extinctions, as when natural competition between species reached an extreme conclusion. Only 0.01 percent of the species that have lived on Earth have survived to the present, and it was largely chance that determined which species survived and which died out.

However, nothing has ever equaled the magnitude and speed with which the human species is altering the physical and chemical world and demolishing the environment. In fact, there is wide agreement that it is the rate of change humans are inflicting, even more than the changes themselves, that will lead to biological devastation. Life on Earth has continually been in flux as slow physical and chemical changes have occurred on Earth, but life needs time to adapt-time for migration and genetic adaptation within existing species and time for the proliferation of new genetic material and new species that may be able to survive in new environments.

According to the passage, natural evolutionary change is different from changes caused by humans in that changes caused by humans _____________ .

A. affect fewer ecosystems

B. are occurring at a much faster rate

C. are reversible

D. are less devastating to most species

#Mẫu giáo

1

DH

Dương Hoàn Anh

11 tháng 1 2019

Chọn B

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LQ

Lê Quỳnh Anh

3 tháng 11 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 36 to 42.Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. The rapid destruction of the tropical rain forests, which are the ecosystems with the highest known species diversity on Earth, has awakened people to the importance and fragility of biological diversity. The high rate of species...

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 36 to 42.

Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. The rapid destruction of the tropical rain forests, which are the ecosystems with the highest known species diversity on Earth, has awakened people to the importance and fragility of biological diversity. The high rate of species extinctions in these environments is jolting, but it is important to recognize the significance of biological diversity in all ecosystems. As the human population continues to expand, it will negatively affect one after another of Earth’s ecosystems. In terrestrial ecosystems and in fringe marine ecosystems (such as wetlands), the most common problem is habitat destruction. In most situations, the result is irreversible. Now humans are beginning to destroy marine ecosystems through other types of activities, such as disposal and runoff of poisonous waste; in less than two centuries, by significantly reducing the variety of species on Earth, they have irrevocably redirected the course of evolution.

Certainly, there have been periods in Earth’s history when mass extinctions have occurred. The extinction of the dinosaurs was caused by some physical event, either climatic or cosmic. There have also been less dramatic extinctions, as when natural competition between species reached an extreme conclusion. Only 0.01 percent of the species that have lived on Earth have survived to the present, and it was largely chance that determined which species survived and which died out.

However, nothing has ever equaled the magnitude and speed with which the human species is altering the physical and chemical world and demolishing the environment. In fact, there is wide agreement that it is the rate of change humans are inflicting, even more than the changes themselves, that will lead to biological devastation. Life on Earth has continually been in flux as slow physical and chemical changes have occurred on Earth, but life needs time to adapt-time for migration and genetic adaptation within existing species and time for the proliferation of new genetic material and new species that may be able to survive in new environments.

According to the passage, natural evolutionary change is different from changes caused by humans in that changes caused by humans _______.

A. affect fewer ecosystems

B. are occurring at a much faster rate

C. are reversible

D. are less devastating to most species

#Mẫu giáo

1

DH

Dương Hoàn Anh

3 tháng 11 2018

Đáp án B

Thay đổi tiến hóa tự nhiên khác với thay đổi gây ra bởi con người trong đó những thay đổi gây ra bởi con người _______.

A. ảnh hưởng đến ít hệ sinh thái hơn

B. đang xảy ra với tốc độ nhanh hơn nhiều

C. có thể đảo ngược

D. ít tàn phá hơn đối với hầu hết các loài

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LQ

Lê Quỳnh Anh

21 tháng 4 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 35 to 42.Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. The rapid destruction of the tropical rain forests, which are the ecosystems with the highest known species diversity on Earth, has awakened people to the importance and fragility of biological diversity. The high rate of species...

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 35 to 42.

Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. The rapid destruction of the tropical rain forests, which are the ecosystems with the highest known species diversity on Earth, has awakened people to the importance and fragility of biological diversity. The high rate of species extinctions in these environments is jolting, but it is important to recognize the significance of biological diversity in all ecosystems. As the human population continues to

expand, it will negatively affect one after another of Earth’s ecosystems. In terrestrial ecosystems and in fringe marine ecosystems (such as wetlands), the most common problem is habitat destruction. In most situations, the result is irreversible. Now humans are beginning to destroy marine ecosystems through other types of activities, such as disposal and runoff of poisonous waste; in less than two centuries, by significantly reducing the variety of species on Earth, they have irrevocably redirected the course of evolution.

Certainly, there have been periods in Earth’s history when mass extinctions have occurred. The extinction of the dinosaurs was caused by some physical event, either climatic or cosmic. There have also been less dramatic extinctions, as when natural competition between species reached an extreme conclusion. Only 0.01 percent of the species that have lived on Earth have survived to the present, and it was largely chance that determined which species survived and which died out.

However, nothing has ever equaled the magnitude and speed with which the human species is altering the physical and chemical world and demolishing the environment. In fact, there is wide agreement that it is the rate of change humans are inflicting, even more than the changes themselves, that will lead to biological devastation. Life on Earth has continually been in flux as slow physical and chemical changes have occurred on Earth, but life needs time to adapt-time for migration and genetic adaptation within existing species and time for the proliferation of new genetic material and new species that may be able to survive in new environments

According to the passage, natural evolutionary change is different from change caused by humans in that changes caused by humans ______

A. affect fewer ecosystems

B. are occurring at a much faster rate

C. are less devastating to most species

D. are reversible

#Mẫu giáo

1

DH

Dương Hoàn Anh

21 tháng 4 2019

Chọn B

Kiến thức: Đọc hiểu

Giải thích:

Theo đoạn văn, sự thay đổi tiến hóa tự nhiên khác với sự thay đổi gây ra bởi con người trong đó những thay đổi do con người gây ra __________

A. ảnh hưởng đến hệ sinh thái ít hơn

B. đang xảy ra với tốc độ nhanh hơn nhiều

C. ít tàn phá hơn đối với hầu hết các loài

D. có thể đảo ngược

Thông tin: However, nothing has ever equaled the magnitude and speed with which the human species is altering the physical and chemical world and demolishing the environment.

Tạm dịch: Tuy nhiên, không có gì sánh bằng mức độ và tốc độ mà loài người đang thay đổi thế giới vật chất và hoá học và phá huỷ môi trường.

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