Alike light waves, microwaves may be reflected and concentrated

TD

Trọng Đức

29 tháng 5 2017

#Hỏi cộng đồng OLM #Tiếng anh lớp 12

1

NL

Nguyễn Lê Hồng Thái

30 tháng 5 2017

Giống như sóng ánh sáng, lò vi sóng có thể phản xạ và tập trung?

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LQ

Lê Quỳnh Anh

18 tháng 5 2019

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that need correction in each of the following questionsAlike light waves , microwaves may be reflected and concentrated elements. A. Alike B. waves C. may be D. concentrated...

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1

DH

Dương Hoàn Anh

18 tháng 5 2019

Đáp án A

Kiến thức: cách dùng của “alike” và “like”

Giải thích:

* Alike: giống nhau

Cấu trúc: Luôn đứng một mình, ở sau hai danh từ hoặc danh từ số nhiều. Không dùng “Alike” đứng trước một danh từ.

* Like: giống như

Cấu trúc:

- Be + like + N (danh từ).

- N + like + N

- Like + N + mệnh đề

Sửa: A. Alike => Like

Tạm dịch: Giống như sóng ánh sáng, sóng cực ngắn có thể phản xạ và là các yếu tố tập trung.

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ND

Nguyễn Đỗ ánh

22 tháng 1 2018

The weather is not beautiful all of the time. Perhaps you can remember a day when bad weather made you afraid. One kind of bad weather that scares many people is called a thunderstorm. This is what happens when there is a thunderstorm. First, you see a sudden flash of bright light. A few seconds later you hear a loud rumbling sound. This quick flash is called lightning and the loud sound is called thunder. Lightning is colorful , but it can cause serious problems. Lightning is...

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#Hỏi cộng đồng OLM #Tiếng anh lớp 12

1

B3

BTS >3

23 tháng 1 2018

The weather is not beautiful all of the time. Perhaps you can remember a day when bad weather made you afraid. One kind of bad weather that scares many people is called a thunderstorm. This is what happens when there is a thunderstorm. First, you see a sudden flash of bright light. A few seconds later you hear a loud rumbling sound. This quick flash is called lightning and the loud sound is called thunder. Lightning is colorful , but it can cause serious problems. Lightning is electricity that is moving very rapidly. It may be moving between a cloud and the ground, between two clouds, or between two parts of the same cloud. The lightning heats the air around it. This hot air expands, or get bigger, and it causes the air to move in waves. The air waves pass you in a series, one after another. For this reason, you may hear many rumbles and not just one sound.

__T__ 29/ Lightning may move between a cloud and the ground.

__F__ 30/ Thunder is a very bright light in a thunderstorm.

__T__ 31/ When you hear thunder you may hear a series of loud sounds and not one

big sound. This is because the air waves pass one after another.

__T__ 32/ Lightning always moves rapidly.

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LQ

Lê Quỳnh Anh

5 tháng 9 2019

Mark the letter A, B, C, or D on your answer sheet to show the underlinedpart that needs correction.Alike other forms of energy, natural gas may be used to heat homes, cook food, and even run automobiles. A. may be used B. Alike C. run D. to heat...

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DH

Dương Hoàn Anh

5 tháng 9 2019

Đáp án là B

Alike => Like

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LQ

Lê Quỳnh Anh

8 tháng 10 2018

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. Alike other forms of energy, natural gas may be used to heat homes, cook food, and even run automobiles. A. may be used B. run C. to heat D. Alike...

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#Hỏi cộng đồng OLM #Mẫu giáo

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DH

Dương Hoàn Anh

8 tháng 10 2018

Kiến thức: Giới từ, liên từ

Giải thích:

Sửa: Alike => Like

Alike (a): giống nhau. Alike không đứng trước danh từ

Like (prep) + noun/pronoun: giống như

Tạm dịch: Giống như các dạng năng lượng khác, khí tự nhiên có thể được sử dụng để sưởi ấm nhà, nấu thức ăn và thậm chí chạy ô tô.

Chọn D

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LQ

Lê Quỳnh Anh

15 tháng 2 2017

Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

Alike other forms of energy, natural gas may be used to heat homes, cook food, and even run automobiles.

A. Alike

B. may be used

C. heat homes

D. run

#Hỏi cộng đồng OLM #Mẫu giáo

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DH

Dương Hoàn Anh

15 tháng 2 2017

Đáp án A

Sửa lại: Alike => Like

Alike là tính từ có nghĩa là giống nhau nên không thể dùng ở vị trí này được.

Dịch nghĩa: Giống như các dạng năng lượng khác, khí tự nhiên có thể được sử dụng để sưởi ấm nhà cửa, nấu ăn, và thậm chí chạy xe ô tô

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LQ

Lê Quỳnh Anh

15 tháng 11 2019

Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.Alike other forms of energy, natural gas may be used to heat homes, cook food, and even run automobiles. A. Alike B. may be used C. heat homes D. run...

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#Hỏi cộng đồng OLM #Mẫu giáo

1

DH

Dương Hoàn Anh

15 tháng 11 2019

Đáp án C

Sửa lại: will avoid => should avoid

(to) recommend somebody should do something: khuyên ai nên làm gì

Dịch nghĩa: Chính phủ liên bang khuyến cáo rằng tất cả phụ nữ có thai nên tránh những nơi có người hút thuốc

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LQ

Lê Quỳnh Anh

16 tháng 3 2019

Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions According to some accounts, the first optical telescope was accidentally invented in the 1600s by children who put two glass lenses together while playing with them in a Dutch optical shop. The owner of the shop, Hans Lippershey, looked through the lenses and was amazed by the way they made the nearby church look so much larger. Soon after...

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

According to some accounts, the first optical telescope was accidentally invented in the 1600s by children who put two glass lenses together while playing with them in a Dutch optical shop. The owner of the shop, Hans Lippershey, looked through the lenses and was amazed by the way they made the nearby church look so much larger. Soon after that, he invented a device that he called a “looker”, a long thin tube where light passed in a straight line from the front lens to the viewing lens at the other end of the tube. In 1608 he tried to sell his invention unsuccessfully. In the same year, someone described the “looker” to the Italian scientists Galileo, who made his own version of the device. In 1610 Galileo used his version to make observations of the Moon, the planet Jupiter, and the Milky Way. In April of 1611, Galileo showed his device to guests at a banquet in his honor. One of guests suggested a name for the device: telescope

When Isaac Newton began using Galileo’s telescope more than a century later, he noticed a problem. The type of telescope that Galileo designed is called a refractor because the front lens bends, or refracts, the light. However, the curved front lens also caused the light to the separated into colors. This meant that when Newton looked through the refracting telescope, the images of bright objects appeared with a ring of colors around them. This sometimes interfered with viewing. He solved this problem by designing a new type of telescope that used a curved mirror. This mirror concentrated the light and reflected a beam of light to the eyepiece at the other end of the telescope. Because Newton used a mirror, his telescope was called a reflector

Very much larger optical telescopes can now be found in many parts of the world, built on hills and mountains far from city lights. The world’s largest refracting telescope is located at the Yerkes Observatory in Williams Bay, Wisconsin. Another telescope stands on Mount Palomar in California. This huge reflecting telescope was for many years the largest reflecting telescope in the world until an even larger reflecting telescope was built in the Caucasus Mountains. A fourth famous reflector telescope, the Keck Telescope situated on a mountain in Hawaii, does not use a single large mirror to collect the light. Instead, the Keck uses the combined light that falls on thirty-six mirrors

Radio telescopes, like optical telescopes allow astronomers to collect data from outer space, but they are different in important ways. First of all, they look very different because instead of light waves, they collect radio waves. Thus, in the place of lenses or mirror, radio telescopes employ bowl-shaped disks that resemble huge TV satellite dished. Also, apart from their distinctive appearance, radio telescope and optical telescopes use different methods to record the information they collect. Optical telescopes use cameras to take photographs of visible objects, while radio telescopes use radio receivers to record radio waves from distant object in space

What can be inferred about the first optical telescope?

A. It was bought by children

B. It was invented in America

C. It was sold by a shop owner

D. It was invented by accident

#Hỏi cộng đồng OLM #Mẫu giáo

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