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27 tháng 2 2021

Chào em, em tham khảo nhé!

In 1543, Nicolaus Copernicus (publish) published "On the Revolutions of the Heavenly Spheres" claiming that the earth and the planets (orbit) orbited the sun.

Chúc em học tốt và có những trải nghiệm tuyệt vời tại hoc24.vn!

27 tháng 2 2021

Published , orbit 

 

Read the following passage and then choose the best answer A, B, C or D.Comets are bodies that move around in space. They are something likes stars or small planets that move around the sun. Comets are surrounded by gases and the sun makes those gases look very bright. Dust can get caught in the gas around the comet and make the comet look like it has a tails.Halley's Comet is the most famous comet, but we can't see it very often. In fact, it can only be seen from the Earth when it moves close...
Đọc tiếp

Read the following passage and then choose the best answer A, B, C or D.

Comets are bodies that move around in space. They are something likes stars or small planets that move around the sun. Comets are surrounded by gases and the sun makes those gases look very bright. Dust can get caught in the gas around the comet and make the comet look like it has a tails.

Halley's Comet is the most famous comet, but we can't see it very often. In fact, it can only be seen from the Earth when it moves close the sun. This means that this beautiful comet only comes into our sky every 77 years or so. The last time Halley's Comet was invisible from the Earth was in 1991. Did you see it?

Halley's Comet was named after the English astronomer Edmond Halley. An astronomer studies the star and planets in the solar system. Edmond Halley was born in London, England, in 1656. He studies astronomy at Oxford University. In 1676, he left the university to study the astronomy of the Southern Hemisphere. He wrote a brook about the arrangement of the stars in the sky and the movement of the planets. He made the first accurate map of the stars we see in the sky. He also observed the moon and studied how the Moon affects the ocean tides. He helped find a way to measure distances in space. This measurement was used by other scientists to learn about the size of our solar system and the distances of many star and planets from the Earth.

Halley especially liked to study comets. He read about comets and observed them in the sky. He learned about the way they moved around the Sun — each comet follows a different path around the Sun and travels at its own speed. The path and speed of a body as it moves in space is called its orbit. Halley calculated the orbits of comets that he read about or saw himself. He found the orbits for twenty-four comets.

Halley also noticed that the paths of a comet seen in 1531 and of a comet seen in 1607 were identical to the path of a comet he had observed in 1682. He concluded that these three comets were, in fact, the same comet. Halley predicted that the comet would come again in 1758, and it did! This comet was named “Halley’s Comet” and can be seen from Earth. The first reports of this comet in history were made in 240 B.C. by Chinese astronomers, so we know that it has been orbiting the Sun to more than 2,000 years. Halley’s Comet is not the only comet in our sky, but it is the only one that appears regularly and can be predicted. It is also one of the brightest comets, and people can see it without a telescope.

Like comets, the Earth also travels around the Sun. Sometimes the orbit of t Earth passes through the path of Hailey’s Comet. Like comets, the Earth also travels around the Sun. Sometimes the orbit of the Earth passes through the path of Hailey’s Comet. When this When this happens, dust left behind from the comet falls to Earth. The dust burns and makes brilliant lights like falling stars in the sky. You can see this happen every year in May and October. Astronomers predict that Hailey’s Comet will enter our sky again in 2061. Who do you think will see it?

When the paths of the Earth and Hailey Comet cross each other

A. astronomers starts making predictions about its appearance

B. dust from the tail of the comet burn's brightly and looks like ling stars in the night sky

C. Hailey’s Comet appears in May and October

D. stars begins to fall from the sky

1
12 tháng 10 2019

Đáp án B
Ở đây là cần tìm mối liên hệ giữa the Earth (trái đất) và the comet (sao chổi). Đáp án được tìm thấy trong
đoạn cuối cùng ở các câu: Sometimes the orbit of the Earth passes through the path of Hailey’s Comet. When this
When this happens, dust left behind from the comet falls to Earth. The dust burns and makes brilliant lights like
falling stars in the sky. (Bụi cháy và tạo nên những ánh sáng như những ngôi sao đang rơi từ trên bầu trời)

Read the text below and choose the correct word or phrase (A, B, C or D) for each space. Write your answer on the answer sheet. (2.5 points) PLANET EARTH Planet earth is part of a system of planets and their moons, as well as numerous asteroids and comets which (1) _____ around a huge star, the Sun. The Sun itself (2) _____ of gas. Nuclear reactions inside its core (3) _____ the heat and light that make life on the Earth (4) _____ . The Earth is the third of four small terrestrial (Earth...
Đọc tiếp

Read the text below and choose the correct word or phrase (A, B, C or D) for each space. Write your answer on the answer sheet. (2.5 points)

PLANET EARTH

Planet earth is part of a system of planets and their moons, as well as numerous asteroids and comets which (1) _____ around a huge star, the Sun. The Sun itself (2) _____ of gas. Nuclear reactions inside its core (3) _____ the heat and light that make life on the Earth (4) _____ . The Earth is the third of four small terrestrial (Earth like) planets (5) _____ orbit close to the Sun. Further out in our Solar System are four huge gas planets, while distant Pluto, (6) _____ planet, is made (7) _____ rock and ice. Our Earth is one of the ten planets that orbit the Sun - a huge, burning-hot star in the center of our Solar System. The Solar System and all the stars in the (8) _____ are part of our galaxy - the Milky Way, which (9) _____ as many as 200 billions stars. Beyond our galaxy (10) _____ millions more galaxies. They all add together to make up the Universe.

1. (A) run (B) orbit (C) turn (D) walk

2. (A) consists (B) remains (C) includes (D) maintains

3. (A) produce (B) product (C) production (D) productive

4. (A) able (B) possibility (C) possible (D) ability

5. (A) who (B) where (C) what (D) which

6. (A) the smaller (B) smallest (C) the most smallest (D) the smallest

7. (A) from (B) of (C) for (D) in

8. (A) space (B) sea (C) moon (D) sky

9. (A) consists (B) makes from (C) stays (D) contains

10. (A) is (B) are (C) to be (D) get

0
Read the following passage and then choose the best answer A, B, C or D.Comets are bodies that move around in space. They are something likes stars or small planets that move around the sun. Comets are surrounded by gases and the sun makes those gases look very bright. Dust can get caught in the gas around the comet and make the comet look like it has a tails.Halley's Comet is the most famous comet, but we can't see it very often. In fact, it can only be seen from the Earth when it moves close...
Đọc tiếp

Read the following passage and then choose the best answer A, B, C or D.

Comets are bodies that move around in space. They are something likes stars or small planets that move around the sun. Comets are surrounded by gases and the sun makes those gases look very bright. Dust can get caught in the gas around the comet and make the comet look like it has a tails.

Halley's Comet is the most famous comet, but we can't see it very often. In fact, it can only be seen from the Earth when it moves close the sun. This means that this beautiful comet only comes into our sky every 77 years or so. The last time Halley's Comet was invisible from the Earth was in 1991. Did you see it?

Halley's Comet was named after the English astronomer Edmond Halley. An astronomer studies the star and planets in the solar system. Edmond Halley was born in London, England, in 1656. He studies astronomy at Oxford University. In 1676, he left the university to study the astronomy of the Southern Hemisphere. He wrote a brook about the arrangement of the stars in the sky and the movement of the planets. He made the first accurate map of the stars we see in the sky. He also observed the moon and studied how the Moon affects the ocean tides. He helped find a way to measure distances in space. This measurement was used by other scientists to learn about the size of our solar system and the distances of many star and planets from the Earth.

Halley especially liked to study comets. He read about comets and observed them in the sky. He learned about the way they moved around the Sun — each comet follows a different path around the Sun and travels at its own speed. The path and speed of a body as it moves in space is called its orbit. Halley calculated the orbits of comets that he read about or saw himself. He found the orbits for twenty-four comets.

Halley also noticed that the paths of a comet seen in 1531 and of a comet seen in 1607 were identical to the path of a comet he had observed in 1682. He concluded that these three comets were, in fact, the same comet. Halley predicted that the comet would come again in 1758, and it did! This comet was named “Halley’s Comet” and can be seen from Earth. The first reports of this comet in history were made in 240 B.C. by Chinese astronomers, so we know that it has been orbiting the Sun to more than 2,000 years. Halley’s Comet is not the only comet in our sky, but it is the only one that appears regularly and can be predicted. It is also one of the brightest comets, and people can see it without a telescope.

Like comets, the Earth also travels around the Sun. Sometimes the orbit of t Earth passes through the path of Hailey’s Comet. Like comets, the Earth also travels around the Sun. Sometimes the orbit of the Earth passes through the path of Hailey’s Comet. When this When this happens, dust left behind from the comet falls to Earth. The dust burns and makes brilliant lights like falling stars in the sky. You can see this happen every year in May and October. Astronomers predict that Hailey’s Comet will enter our sky again in 2061. Who do you think will see it?

The Earth also travels _______

A. around Hailey’s comet

B. every 77 years

C. around the Sun

D. around the Moon

1
13 tháng 12 2018

Đáp án C
Đáp án ở câu đầu tiên của đoạn 1: Like comets, the Earth also travels around the Sun. (giống như sao chổi,
Trái Đất cũng quay xung quanh mặt trời)

Planet earth is part of a system of planets and their moons, as well as numerous asteroids and comets which (1).........around a huge star we call the Sun.The Sun itself (2).........of gas. Nuclear reactions inside its core (3)..........the heat and light that make life on the Earth (4)........... . The Earth is the third of four small terrestrial (Earth like) planets that orbit close to the (5).......... . Further out in our Solar System are four huge gas planets, while distant Pluto,...
Đọc tiếp

Planet earth is part of a system of planets and their moons, as well as numerous asteroids and comets which (1).........around a huge star we call the Sun.The Sun itself (2).........of gas. Nuclear reactions inside its core (3)..........the heat and light that make life on the Earth (4)........... . The Earth is the third of four small terrestrial (Earth like) planets that orbit close to the (5).......... . Further out in our Solar System are four huge gas planets, while distant Pluto, (6)..........planet, is made (7)......... rock and ice. Our Earth is one of the ten planets that orbit the Sun- a huge, burning-hot star in the center of our Solar System. The Solar System and all the star in the (8).........are part of our galaxy-the Milky Way, which (9)...........as many as 200 billions star. Beyond our galaxy (10)...........millions more galaxies. They all add together to make up the Universe.

1. a.run b.orbit c.turn d.walk

2. a.consists b.remains c.includes d.maintains

3. a.produce b.product c.production d.productive

4.a.able b.possibility c.possible d.ability

5. a.Earth b.Mars c.Mercury d.Sun

6. a.The smaller b.smallest c.the most smallest d.the smallest

7. a.from b.of c.for d.in

8. a.space b.Universe c.Moon d.sky

9. a.consists b.makes from c.stays d.contains

10. a.is b.are c.to be d.Get

1
16 tháng 4 2018

Planet earth is part of a system of planets and their moons, as well as numerous asteroids and comets which (1).........around a huge star we call the Sun.The Sun itself (2).........of gas. Nuclear reactions inside its core (3)..........the heat and light that make life on the Earth (4)........... . The Earth is the third of four small terrestrial (Earth like) planets that orbit close to the (5).......... . Further out in our Solar System are four huge gas planets, while distant Pluto, (6)..........planet, is made (7)......... rock and ice. Our Earth is one of the ten planets that orbit the Sun- a huge, burning-hot star in the center of our Solar System. The Solar System and all the star in the (8).........are part of our galaxy-the Milky Way, which (9)...........as many as 200 billions star. Beyond our galaxy (10)...........millions more galaxies. They all add together to make up the Universe.

1. a.run b.orbit c.turn d.walk

2. a.consists b.remains c.includes d.maintains

3. a.produce b.product c.production d.productive

4.a.able b.possibility c.possible d.ability

5. a.Earth b.Mars c.Mercury d.Sun

6. a.The smaller b.smallest c.the most smallest d.the smallest

7. a.from b.of c.for d.in

8. a.space b.Universe c.Moon d.sky

9. a.consists b.makes from c.stays d.contains

10. a.is b.are c.to be d.Get

Read the following passage and then choose the best answer A, B, C or D.Comets are bodies that move around in space. They are something likes stars or small planets that move around the sun. Comets are surrounded by gases and the sun makes those gases look very bright. Dust can get caught in the gas around the comet and make the comet look like it has a tails.Halley's Comet is the most famous comet, but we can't see it very often. In fact, it can only be seen from the Earth when it moves close...
Đọc tiếp

Read the following passage and then choose the best answer A, B, C or D.

Comets are bodies that move around in space. They are something likes stars or small planets that move around the sun. Comets are surrounded by gases and the sun makes those gases look very bright. Dust can get caught in the gas around the comet and make the comet look like it has a tails.

Halley's Comet is the most famous comet, but we can't see it very often. In fact, it can only be seen from the Earth when it moves close the sun. This means that this beautiful comet only comes into our sky every 77 years or so. The last time Halley's Comet was invisible from the Earth was in 1991. Did you see it?

Halley's Comet was named after the English astronomer Edmond Halley. An astronomer studies the star and planets in the solar system. Edmond Halley was born in London, England, in 1656. He studies astronomy at Oxford University. In 1676, he left the university to study the astronomy of the Southern Hemisphere. He wrote a brook about the arrangement of the stars in the sky and the movement of the planets. He made the first accurate map of the stars we see in the sky. He also observed the moon and studied how the Moon affects the ocean tides. He helped find a way to measure distances in space. This measurement was used by other scientists to learn about the size of our solar system and the distances of many star and planets from the Earth.

Halley especially liked to study comets. He read about comets and observed them in the sky. He learned about the way they moved around the Sun — each comet follows a different path around the Sun and travels at its own speed. The path and speed of a body as it moves in space is called its orbit. Halley calculated the orbits of comets that he read about or saw himself. He found the orbits for twenty-four comets.

Halley also noticed that the paths of a comet seen in 1531 and of a comet seen in 1607 were identical to the path of a comet he had observed in 1682. He concluded that these three comets were, in fact, the same comet. Halley predicted that the comet would come again in 1758, and it did! This comet was named “Halley’s Comet” and can be seen from Earth. The first reports of this comet in history were made in 240 B.C. by Chinese astronomers, so we know that it has been orbiting the Sun to more than 2,000 years. Halley’s Comet is not the only comet in our sky, but it is the only one that appears regularly and can be predicted. It is also one of the brightest comets, and people can see it without a telescope.

Like comets, the Earth also travels around the Sun. Sometimes the orbit of t Earth passes through the path of Hailey’s Comet. Like comets, the Earth also travels around the Sun. Sometimes the orbit of the Earth passes through the path of Hailey’s Comet. When this When this happens, dust left behind from the comet falls to Earth. The dust burns and makes brilliant lights like falling stars in the sky. You can see this happen every year in May and October. Astronomers predict that Hailey’s Comet will enter our sky again in 2061. Who do you think will see it?

Which of the following is NOT TRUE of Hailey’s Comet?

A. It won’t appear again until 2061

B. Chinese astronomers named it “Hailey’s Comet.”

C. It is predictable

D. It is bright

1
21 tháng 10 2019

Đáp án B
Đoạn số 5 có nhắc đến việc sao chổi được đặt tên là “Halley’s Comet” vào năm 1758 (Halley predicted that
the comet would come again in 1758, and it did! This comet was named “Halley’s Comet”“, tuy nhiên không phải do
các nhà du hành vũ trụ Trung Quốc đặt tên

Read the following passage and then choose the best answer A, B, C or D.Comets are bodies that move around in space. They are something likes stars or small planets that move around the sun. Comets are surrounded by gases and the sun makes those gases look very bright. Dust can get caught in the gas around the comet and make the comet look like it has a tails.Halley's Comet is the most famous comet, but we can't see it very often. In fact, it can only be seen from the Earth when it moves close...
Đọc tiếp

Read the following passage and then choose the best answer A, B, C or D.

Comets are bodies that move around in space. They are something likes stars or small planets that move around the sun. Comets are surrounded by gases and the sun makes those gases look very bright. Dust can get caught in the gas around the comet and make the comet look like it has a tails.

Halley's Comet is the most famous comet, but we can't see it very often. In fact, it can only be seen from the Earth when it moves close the sun. This means that this beautiful comet only comes into our sky every 77 years or so. The last time Halley's Comet was invisible from the Earth was in 1991. Did you see it?

Halley's Comet was named after the English astronomer Edmond Halley. An astronomer studies the star and planets in the solar system. Edmond Halley was born in London, England, in 1656. He studies astronomy at Oxford University. In 1676, he left the university to study the astronomy of the Southern Hemisphere. He wrote a brook about the arrangement of the stars in the sky and the movement of the planets. He made the first accurate map of the stars we see in the sky. He also observed the moon and studied how the Moon affects the ocean tides. He helped find a way to measure distances in space. This measurement was used by other scientists to learn about the size of our solar system and the distances of many star and planets from the Earth.

Halley especially liked to study comets. He read about comets and observed them in the sky. He learned about the way they moved around the Sun — each comet follows a different path around the Sun and travels at its own speed. The path and speed of a body as it moves in space is called its orbit. Halley calculated the orbits of comets that he read about or saw himself. He found the orbits for twenty-four comets.

Halley also noticed that the paths of a comet seen in 1531 and of a comet seen in 1607 were identical to the path of a comet he had observed in 1682. He concluded that these three comets were, in fact, the same comet. Halley predicted that the comet would come again in 1758, and it did! This comet was named “Halley’s Comet” and can be seen from Earth. The first reports of this comet in history were made in 240 B.C. by Chinese astronomers, so we know that it has been orbiting the Sun to more than 2,000 years. Halley’s Comet is not the only comet in our sky, but it is the only one that appears regularly and can be predicted. It is also one of the brightest comets, and people can see it without a telescope.

Like comets, the Earth also travels around the Sun. Sometimes the orbit of t Earth passes through the path of Hailey’s Comet. Like comets, the Earth also travels around the Sun. Sometimes the orbit of the Earth passes through the path of Hailey’s Comet. When this When this happens, dust left behind from the comet falls to Earth. The dust burns and makes brilliant lights like falling stars in the sky. You can see this happen every year in May and October. Astronomers predict that Hailey’s Comet will enter our sky again in 2061. Who do you think will see it?

Which of the following is NOT true?

A. Halley’s Comet can be seen from Earth with naked eyes

B. Halley’s prediction of the comet’s re-appearance in 1758 was right

C. He observed the comet of 1682 and named it “Helley’s Comet.”

D. The comets of 1531, 1607 and 1682 were, in fact, the same comet

1
15 tháng 6 2019

Đáp án C
Qua đoạn số 5 ta thấy năm 1682 Halley đã quan sát thấy sao chổi (a comet he had observed in 1682), tuy
nhiên ông chỉ đặt tên là “Halley’s Comet” vào năm 1758 qua câu “Halley predicted that the comet would come again
in 1758, and it did! This comet was named “Halley’s Comet” and can be seen from Earth”

Read the following passage and then choose the best answer A, B, C or D.Comets are bodies that move around in space. They are something likes stars or small planets that move around the sun. Comets are surrounded by gases and the sun makes those gases look very bright. Dust can get caught in the gas around the comet and make the comet look like it has a tails.Halley's Comet is the most famous comet, but we can't see it very often. In fact, it can only be seen from the Earth when it moves close...
Đọc tiếp

Read the following passage and then choose the best answer A, B, C or D.

Comets are bodies that move around in space. They are something likes stars or small planets that move around the sun. Comets are surrounded by gases and the sun makes those gases look very bright. Dust can get caught in the gas around the comet and make the comet look like it has a tails.

Halley's Comet is the most famous comet, but we can't see it very often. In fact, it can only be seen from the Earth when it moves close the sun. This means that this beautiful comet only comes into our sky every 77 years or so. The last time Halley's Comet was invisible from the Earth was in 1991. Did you see it?

Halley's Comet was named after the English astronomer Edmond Halley. An astronomer studies the star and planets in the solar system. Edmond Halley was born in London, England, in 1656. He studies astronomy at Oxford University. In 1676, he left the university to study the astronomy of the Southern Hemisphere. He wrote a brook about the arrangement of the stars in the sky and the movement of the planets. He made the first accurate map of the stars we see in the sky. He also observed the moon and studied how the Moon affects the ocean tides. He helped find a way to measure distances in space. This measurement was used by other scientists to learn about the size of our solar system and the distances of many star and planets from the Earth.

Halley especially liked to study comets. He read about comets and observed them in the sky. He learned about the way they moved around the Sun — each comet follows a different path around the Sun and travels at its own speed. The path and speed of a body as it moves in space is called its orbit. Halley calculated the orbits of comets that he read about or saw himself. He found the orbits for twenty-four comets.

Halley also noticed that the paths of a comet seen in 1531 and of a comet seen in 1607 were identical to the path of a comet he had observed in 1682. He concluded that these three comets were, in fact, the same comet. Halley predicted that the comet would come again in 1758, and it did! This comet was named “Halley’s Comet” and can be seen from Earth. The first reports of this comet in history were made in 240 B.C. by Chinese astronomers, so we know that it has been orbiting the Sun to more than 2,000 years. Halley’s Comet is not the only comet in our sky, but it is the only one that appears regularly and can be predicted. It is also one of the brightest comets, and people can see it without a telescope.

Like comets, the Earth also travels around the Sun. Sometimes the orbit of t Earth passes through the path of Hailey’s Comet. Like comets, the Earth also travels around the Sun. Sometimes the orbit of the Earth passes through the path of Hailey’s Comet. When this When this happens, dust left behind from the comet falls to Earth. The dust burns and makes brilliant lights like falling stars in the sky. You can see this happen every year in May and October. Astronomers predict that Hailey’s Comet will enter our sky again in 2061. Who do you think will see it?

Edmond Hailey made the first accurate map of ______

A. the stars

B. England

C. the Earth’s orbits

D. the Southern Hemisphere

1
21 tháng 8 2017

Đáp án A
Đáp án nằm ở dòng số 5 của đoạn số 3: He made the first accurate map of the stars we see in the sky. (Ông
làm chiếc bản đồ đầu tiên về các ngôi sao mà chúng ta thấy trên bầu trời)

Read the following passage and then choose the best answer A, B, C or D.Comets are bodies that move around in space. They are something likes stars or small planets that move around the sun. Comets are surrounded by gases and the sun makes those gases look very bright. Dust can get caught in the gas around the comet and make the comet look like it has a tails.Halley's Comet is the most famous comet, but we can't see it very often. In fact, it can only be seen from the Earth when it moves close...
Đọc tiếp

Read the following passage and then choose the best answer A, B, C or D.

Comets are bodies that move around in space. They are something likes stars or small planets that move around the sun. Comets are surrounded by gases and the sun makes those gases look very bright. Dust can get caught in the gas around the comet and make the comet look like it has a tails.

Halley's Comet is the most famous comet, but we can't see it very often. In fact, it can only be seen from the Earth when it moves close the sun. This means that this beautiful comet only comes into our sky every 77 years or so. The last time Halley's Comet was invisible from the Earth was in 1991. Did you see it?

Halley's Comet was named after the English astronomer Edmond Halley. An astronomer studies the star and planets in the solar system. Edmond Halley was born in London, England, in 1656. He studies astronomy at Oxford University. In 1676, he left the university to study the astronomy of the Southern Hemisphere. He wrote a brook about the arrangement of the stars in the sky and the movement of the planets. He made the first accurate map of the stars we see in the sky. He also observed the moon and studied how the Moon affects the ocean tides. He helped find a way to measure distances in space. This measurement was used by other scientists to learn about the size of our solar system and the distances of many star and planets from the Earth.

Halley especially liked to study comets. He read about comets and observed them in the sky. He learned about the way they moved around the Sun — each comet follows a different path around the Sun and travels at its own speed. The path and speed of a body as it moves in space is called its orbit. Halley calculated the orbits of comets that he read about or saw himself. He found the orbits for twenty-four comets.

Halley also noticed that the paths of a comet seen in 1531 and of a comet seen in 1607 were identical to the path of a comet he had observed in 1682. He concluded that these three comets were, in fact, the same comet. Halley predicted that the comet would come again in 1758, and it did! This comet was named “Halley’s Comet” and can be seen from Earth. The first reports of this comet in history were made in 240 B.C. by Chinese astronomers, so we know that it has been orbiting the Sun to more than 2,000 years. Halley’s Comet is not the only comet in our sky, but it is the only one that appears regularly and can be predicted. It is also one of the brightest comets, and people can see it without a telescope.

Like comets, the Earth also travels around the Sun. Sometimes the orbit of t Earth passes through the path of Hailey’s Comet. Like comets, the Earth also travels around the Sun. Sometimes the orbit of the Earth passes through the path of Hailey’s Comet. When this When this happens, dust left behind from the comet falls to Earth. The dust burns and makes brilliant lights like falling stars in the sky. You can see this happen every year in May and October. Astronomers predict that Hailey’s Comet will enter our sky again in 2061. Who do you think will see it?

One of Hailey’s contributions to astronomy was _____

A. giving a name to one of the most famous comets

B. drawing a map of the Southern Hemisphere

C. finding a way to measure distances in space

D. founding the astronomy department at Oxford University

1
7 tháng 5 2018

Đáp án C
Đoạn 3 nói về tiểu sử và những đóng góp của Halley với ngành thiên văn học, theo đó đáp án xuất hiện ở
dòng số 6 câu “He helped find a way to measure distances in space.”(Ông đã tìm ra một cách để tính toán khoảng
cách trong vũ trụ)