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24 tháng 11 2021

nếu một ngôi sao chêt sheej thống sao sẽ chêt s

20 tháng 4 2022

If the star missing or die, all planets, asteroids and dwarf planets will drift away from Solar System.

(Chọn đáp án đúng nhất hoàn thành các câu sau.)1. If the river is __________, many fishes __________.A. polluted - will die                         B. polluted - diesC. is polluted – dies                        D. is polluted - will die2. People __________the environment if they __________ or cycle more.A. help - will walk                                      B. help - walkC. will help – walk                           D. will help - will walk3. If plants __________ more, we...
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(Chọn đáp án đúng nhất hoàn thành các câu sau.)

1. If the river is __________, many fishes __________.

A. polluted - will die                         B. polluted - dies

C. is polluted – dies                        D. is polluted - will die

2. People __________the environment if they __________ or cycle more.

A. help - will walk                                      B. help - walk

C. will help – walk                           D. will help - will walk

3. If plants __________ more, we __________enough food to feed everyone.

A. die - will have                              B. die - won't have

C. will die - won't have                    D. won't die - won't have

4. If people __________ the rubbish, it __________harmful smoke.

A. burn - will produce                      B. burns - will produce

C. will burn – produce                    D. will burn - produces

5. If Mai __________ trees and flowers in her garden, it __________greener and more beautiful.

A. grow - will be                               B. grows - will be

C. grow - won't be                           D. grows - won't be

6. If she __________ hard, she __________ in the examination.

A. study - will fail                             B. studies - will failed

C. doesn't study - will fails             D. doesn't study - will fail

6
14 tháng 7 2021

1 A

2 C

3 B

4 A

5 B

6 D

14 tháng 7 2021

1 .a

2.c

3.b

4 .a

5 tháng 9 2021

died - took - gave

5 tháng 9 2021

died-took -gave

1. We invited a pop star onto the chat show, but he didn't turn up

➞The pop star didn't turn up despite being invited onto the chat show

2. She had to do the washing up but she didn't

➞She forgot to do the washing up

3.Don't leave the lights on all night, you will waste electricity

➞If you leave the lights on all night, you will wast electricity

4.Since the invention of computer, people have saved a lot of time

➞Since the computer was invented, people have saved a lot of time

21 tháng 2 2019

vừa mới rep ib :) quay lại,mất mẹ top :((

1. You should take the train instead of the bus.
-> If I were you, I would take the train instead of the bus.
CÂU MẪU CÓ TỪ SHOULD + V BARE MÀ CÂU VIẾT LẠI YÊU CẦU VIẾT LẠI VỚI TỪ IF THÌ NHỚ TỚI CẤU TRÚC IF I WERE ...
NẾU CÂU MẪU LÀ SHOULD HAVE V3 --> IF 3 NHÉ

2. I'm sure that someone forgot to lock the door.
--> Someone must have forgotten to lock the door.
PHỎNG ĐOÁN 1 CHUYỆN Ở QUÁ KHỨ TA CÓ: MUST/CAN/COULD/MAY/MIGHT + V3
--> PHỦ ĐỊNH CỦA MUST HAVE V3 LÀ CAN'T HAVE V3. NHỚ NHÉ!

4. The course finished with a big party.
--> At the end of the course, there was a big party.
CÁC BẠN NHỚ AT THE END THÌ CÓ OF
IN THE END THÌ KHÔNG CÓ OF.

5. We invited a pop star onto the chat show, but he didn't turn up.
--> The pop star was invited onto the chat show, but he didn't turn up
CÂU NÀY DÙNG ALTHOUGH/EVEN THOUGH CŨNG ĐƯỢC.

6. Although she said that she would come, I don't think she ever will.
—> Despite the fact that she said she would come, I don't think she ever will
NẾU CÂU NÀO KHÓ CHUYỂN QUA DANH TỪ QÁ THÌ CỨ THÊM CỰM THE FACT THAT VÀO R GHI LẠI :d

24 tháng 6 2019

1, You should take the train instead of the bus 

If I were you, I would take the train instead of the bus.

2, I'm sure that someone forgot to lock the door 

Someone must have be forgotten to lock the door.

3, The course finished with a big party 

At the end of cours, there was a big party.

4, We invited a pop star onto the chast show , but he didn't turn up 

The pop star was be invited onto the chat show, but he didn't turn up.

5, although the said that she would come , i don't think she ever will 

Despite the fact that she said she would come, but I don't think she ever will.

~ Hok tốt ~

24 tháng 6 2019

1, You should take the train instead of the bus

If .........i were you, i would take the train instead of the bus ......

2, I'm sure that someone forgot to lock the door

Someone must ......have forgotten to lock the door................

3, The course finished with a big party

At the end .... of the course, there was a big party. ..............

4, We invited a pop star onto the chast show , but he didn't turn up

The pop star .........was invited onto the chast show , but he didn't turn up ................

5, although they said that she would come , i don't think she ever will

Despite ....... the fact that she said she would come, I don't think she ever will......

Read the following passage on transport, 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. The Sun today is a yellow dwarf star. It is fueled by thermonuclear reactions near its center that convert hydrogen to helium. The Sun has existed in its present state for about four billion six hundred million years and is thousands of times larger than the Earth. By studying other stars, astronomers can predict what the rest of...
Đọc tiếp

Read the following passage on transport, 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.

The Sun today is a yellow dwarf star. It is fueled by thermonuclear reactions near its center that convert hydrogen to helium. The Sun has existed in its present state for about four billion six hundred million years and is thousands of times larger than the Earth.

By studying other stars, astronomers can predict what the rest of the Sun’s life will be like. About five billion years from now, the core of the Sun will shrink and become hotter. The surface temperature will fall. The higher temperature of the center will increase the rate of thermonuclear reactions. The outer regions of the Sun will expand approximately 35 million miles, about the distance to Mercury, which is the closest planet to the Sun. The Sun will then be a red giant star. Temperatures on the Earth will become too high for life to exist.

Once the Sun has used up its thermonuclear energy as a red giant, it will begin to shrink. After it shrinks to the size of the Earth, it will become a white dwarf star. The Sun may throw off huge amounts of gases in violent eruptions called nova explosions as it changes from a red giant to a white dwarf.

After billions of years as a white dwarf, the Sun will have used up all its fuel and will have lost its heat. Such a star is called a black dwarf. After the Sun has become a black dwarf, the Earth will be dark and cold. If any atmosphere remains there, it will have frozen over the Earth’s surface.

The Sun will become a black dwarf when .

A. the outer regions of the Sun expand       

B. it has used up all its fuel as a white dwarf

C. the Sun moves nearer to the Earth          

D. the core of the Sun becomes hotter

1
31 tháng 3 2019

Đáp án B
“After billions of years as a white dwarf, the Sun will have used up all its fuel and will have lost its heat. Such a star is called a black dwarf”

Read the following passage on transport, 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. The Sun today is a yellow dwarf star. It is fueled by thermonuclear reactions near its center that convert hydrogen to helium. The Sun has existed in its present state for about four billion six hundred million years and is thousands of times larger than the Earth. By studying other stars, astronomers can predict what the rest of...
Đọc tiếp

Read the following passage on transport, 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.

The Sun today is a yellow dwarf star. It is fueled by thermonuclear reactions near its center that convert hydrogen to helium. The Sun has existed in its present state for about four billion six hundred million years and is thousands of times larger than the Earth.

By studying other stars, astronomers can predict what the rest of the Sun’s life will be like. About five billion years from now, the core of the Sun will shrink and become hotter. The surface temperature will fall. The higher temperature of the center will increase the rate of thermonuclear reactions. The outer regions of the Sun will expand approximately 35 million miles, about the distance to Mercury, which is the closest planet to the Sun. The Sun will then be a red giant star. Temperatures on the Earth will become too high for life to exist.

Once the Sun has used up its thermonuclear energy as a red giant, it will begin to shrink. After it shrinks to the size of the Earth, it will become a white dwarf star. The Sun may throw off huge amounts of gases in violent eruptions called nova explosions as it changes from a red giant to a white dwarf.

After billions of years as a white dwarf, the Sun will have used up all its fuel and will have lost its heat. Such a star is called a black dwarf. After the Sun has become a black dwarf, the Earth will be dark and cold. If any atmosphere remains there, it will have frozen over the Earth’s surface.

As a white dwarf, the Sun will be _______.

A. a cool and habitable planet

B. the same size as the planet Mercury

C. thousands of times smaller than it is today       

D. around 35 million miles in diameter

1
1 tháng 2 2017

Đáp án C

”After it shrinks to the size of the Earth, it will become a white dwarf star” và thông tin ở đoạn đầu “The Sun …is thousands of times larger than the Earth.”
Chứng tỏ khi trở thành ngôi sao lùn màu trắng, Mặt trời sẽ nhỏ hơn hàng ngàn lần so với hiện tại

Read the following passage on transport, 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.     The Sun today is a yellow dwarf star. It is fueled by thermonuclear reactions near its center that convert hydrogen to helium. The Sun has existed in its present state for about four billion six hundred million years and is thousands of times larger than the Earth.     By studying other stars, astronomers can predict what the...
Đọc tiếp

Read the following passage on transport, 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.

    The Sun today is a yellow dwarf star. It is fueled by thermonuclear reactions near its center that convert hydrogen to helium. The Sun has existed in its present state for about four billion six hundred million years and is thousands of times larger than the Earth.

    By studying other stars, astronomers can predict what the rest of the Sun’s life will be like. About five billion years from now, the core of the Sun will shrink and become hotter. The surface temperature will fall. The higher temperature of the center will increase the rate of thermonuclear reactions. The outer regions of the Sun will expand approximately 35 million miles, about the distance to Mercury, which is the closest planet to the Sun. The Sun will then be a red giant star. Temperatures on the Earth will become too high for life to exist.

    Once the Sun has used up its thermonuclear energy as a red giant, it will begin to shrink. After it shrinks to the size of the Earth, it will become a white dwarf star. The Sun may throw off huge amounts of gases in violent eruptions called nova explosions as it changes from a red giant to a white dwarf.

    After billions of years as a white dwarf, the Sun will have used up all its fuel and will have lost its heat. Such a star is called a black dwarf. After the Sun has become a black dwarf, the Earth will be dark and cold. If any atmosphere remains there, it will have frozen over the Earth’s surface.

As a white dwarf, the Sun will be ___.

A. a cool and habitable planet

B. the same size as the planet Mercury

C. thousands of times smaller than it is today

D. around 35 million miles in diameter

1
27 tháng 3 2017

Đáp án C

”After it shrinks to the size of the Earth, it will become a white dwarf star” và thông tin ở đoạn đầu “The Sun …is thousands of times larger than the Earth.”

Chứng tỏ khi trở thành ngôi sao lùn màu trắng, Mặt trời sẽ nhỏ hơn hàng ngàn lần so với hiện tại

Read the following passage on transport, 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.     The Sun today is a yellow dwarf star. It is fueled by thermonuclear reactions near its center that convert hydrogen to helium. The Sun has existed in its present state for about four billion six hundred million years and is thousands of times larger than the Earth.     By studying other stars, astronomers can predict what the...
Đọc tiếp

Read the following passage on transport, 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.

    The Sun today is a yellow dwarf star. It is fueled by thermonuclear reactions near its center that convert hydrogen to helium. The Sun has existed in its present state for about four billion six hundred million years and is thousands of times larger than the Earth.

    By studying other stars, astronomers can predict what the rest of the Sun’s life will be like. About five billion years from now, the core of the Sun will shrink and become hotter. The surface temperature will fall. The higher temperature of the center will increase the rate of thermonuclear reactions. The outer regions of the Sun will expand approximately 35 million miles, about the distance to Mercury, which is the closest planet to the Sun. The Sun will then be a red giant star. Temperatures on the Earth will become too high for life to exist.

    Once the Sun has used up its thermonuclear energy as a red giant, it will begin to shrink. After it shrinks to the size of the Earth, it will become a white dwarf star. The Sun may throw off huge amounts of gases in violent eruptions called nova explosions as it changes from a red giant to a white dwarf.

    After billions of years as a white dwarf, the Sun will have used up all its fuel and will have lost its heat. Such a star is called a black dwarf. After the Sun has become a black dwarf, the Earth will be dark and cold. If any atmosphere remains there, it will have frozen over the Earth’s surface.

The Sun will become a black dwarf when ___.

A. the outer regions of the Sun expand

B. it has used up all its fuel as a white dwarf

C. the Sun moves nearer to the Earth

D. the core of the Sun becomes hotter

1
25 tháng 8 2019

Đáp án B

“After billions of years as a white dwarf, the Sun will have used up all its fuel and will have lost its heat. Such a star is called a black dwarf”