Câu hỏi:
13/04/2025 115
For thousands of years, humans have explored the Earth. Now astronomers are exploring space, looking for new planets or a “new Earth” for humans to live on in the future. But what will a new Earth look like? And how do we find a “new Earth”?
First of all, astronomers look for a star. That’s because our own Earth orbits a star (the Sun). When astronomers have found a star, they look for planets around it. In recent years, astronomers have found thousands of new planets orbiting suns. Once they find a new planet, it’s important to measure the distance between the planet and the sun. In fact, most planets (unlike our Earth) are either too near to the star or too far away.
When they find a planet in a good position, astronomers look for three things: water, air and rock. Water is important because if humans go there, they will need water to drink and to grow plants. If plants can be grown, they can produce air for humans to breathe. Then, astronomers also look for rocks, as water is often under the rocks.
In recent years, astronomers have found a few planets that are very similar to Earth. For example, Gliese 581g is a planet at a safe distance from the nearest star. Astronomers think it has water and rocks. The average temperature is between -310°C and -120°C which is cold, but not colder than Antarctica or the Arctic Circle. Humans can live in those temperatures.
However, there are differences between our Earth and this planet. Gliese 581g is bigger than the Earth and a year on Gliese 581g is only 37 Earth days instead of 365. And the biggest problem is the distance. Gliese 581g is 18 trillion kilometers from the Earth. With current space technology, it will take humans 766,000 years to travel there.
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.
The main idea of the passage is .
For thousands of years, humans have explored the Earth. Now astronomers are exploring space, looking for new planets or a “new Earth” for humans to live on in the future. But what will a new Earth look like? And how do we find a “new Earth”?
First of all, astronomers look for a star. That’s because our own Earth orbits a star (the Sun). When astronomers have found a star, they look for planets around it. In recent years, astronomers have found thousands of new planets orbiting suns. Once they find a new planet, it’s important to measure the distance between the planet and the sun. In fact, most planets (unlike our Earth) are either too near to the star or too far away.
When they find a planet in a good position, astronomers look for three things: water, air and rock. Water is important because if humans go there, they will need water to drink and to grow plants. If plants can be grown, they can produce air for humans to breathe. Then, astronomers also look for rocks, as water is often under the rocks.
In recent years, astronomers have found a few planets that are very similar to Earth. For example, Gliese 581g is a planet at a safe distance from the nearest star. Astronomers think it has water and rocks. The average temperature is between -310°C and -120°C which is cold, but not colder than Antarctica or the Arctic Circle. Humans can live in those temperatures.
However, there are differences between our Earth and this planet. Gliese 581g is bigger than the Earth and a year on Gliese 581g is only 37 Earth days instead of 365. And the biggest problem is the distance. Gliese 581g is 18 trillion kilometers from the Earth. With current space technology, it will take humans 766,000 years to travel there.
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.
The main idea of the passage is .
Đáp án chính xác
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Giải bởi Vietjack
D. the search for a new planet to live on
Câu hỏi cùng đoạn
Câu 2:
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.
In what way is Gliese 581g very similar to the Earth as mentioned in the passage?
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.
In what way is Gliese 581g very similar to the Earth as mentioned in the passage?
Đáp án chính xác
Lời giải của GV VietJack
B. It is neither too near nor too far from the nearest star.
Câu 3:
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.
The word ‘measure’ in paragraph 2 is closest in meaning to .
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.
The word ‘measure’ in paragraph 2 is closest in meaning to .
Đáp án chính xác
Lời giải của GV VietJack
A. calculate
Câu 4:
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.
The word ‘it’ in paragraph 2 refers to .
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.
The word ‘it’ in paragraph 2 refers to .
Đáp án chính xác
Lời giải của GV VietJack
B. the star
Câu 5:
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.
All of the following are looked for to support human life EXCEPT .
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.
All of the following are looked for to support human life EXCEPT .
Đáp án chính xác
Lời giải của GV VietJack
C. rock
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CÂU HỎI HOT CÙNG CHỦ ĐỀ
Câu 1:
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word that best fits each of the numbered blanks.
Question 36...........
Xem đáp án »
13/04/2025
106
Câu 2:
Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.
Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.
Xem đáp án »
13/04/2025
96
Câu 3:
Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of the primary stress in each of the following questions.
Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of the primary stress in each of the following questions.
Xem đáp án »
13/04/2025
63
Câu 4:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
She is to pass the exam. She did it really well.
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
She is to pass the exam. She did it really well.
Xem đáp án »
12/04/2025
57
Câu 5:
Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of the primary stress in each of the following questions.
Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of the primary stress in each of the following questions.
Xem đáp án »
13/04/2025
50
Câu 6:
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.
In the future, teachers will act as facilitators, who offer help instead of being given information.
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.
In the future, teachers will act as facilitators, who offer help instead of being given information.
Xem đáp án »
12/04/2025
38
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