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Read the text and match the highlighted words in the text with their meanings.

Nowadays humans are still wondering what planets in outer space might support life.

Scientists say planets need to meet three main conditions to support life. Firstly, they must have liquid water, so their temperature must not be too high or too low. Secondly, the planets need to have the correct amount of air so that they can hold an atmosphere around. Finally, their size is also important. If a planet is too small, its gravity is not strong enough to hold an enough amount of air. If it is too big, its gravity will be so strong that it will hold too much air.

Scientists are using space telescopes to find habitable planets. According to them, Mars is one of the most promising planets for life in our solar system. It is a planet like Earth. Its days last for 24.5 hours and its seasons are similar to Earth's. Although scientists have not found actual water on Mars, there seems to be traces of it on the planet's surface. However, the climate on Mars is unsuitable for human life because it is too cold and Mars lacks oxygen to support human life.

1. liquid a. suitable for people to live in
2. grativyb. marks, objects, or signs that show that somebody or something existed
3. habitablec. in the form of a substance that flows freely and is not a solid or a gas
4. promisingd. the force that causes something to fall to the ground
5. tracese. showing signs of being good or successfull

 

3
19 tháng 8 2023

1. c  

2. d   

3. a     

4. e      

5. b

QT
Quoc Tran Anh Le
Giáo viên
16 tháng 10 2023

1 - c: liquid - in a form of a substance that flows freely and is not a solid or a gas.

(chất lỏng – một dạng vật chất chảy tự do mà không phải là chất rắn hay chất khí.)

2 - d: gravity - the force that causes something to fall to the ground.

(trọng lực – lực làm mọi thứ rơi xuống đất.)

3 - a: habitable - suitable for people to live in. 

(có thể ở được – phù hợp để con người sống.)

4 - e: promising - showing signs of being good or successful.

(đầy hứa hẹn – cho thấy dấu hiệu của sự tốt đẹp hoặc thành công.)

5 - b: traces - marks, objects, or signs that show that somebody or something existed.

(dấu vết – vết tích, đồ vật hoặc dấu hiệu cho thấy ai đó hoặc cái gì tồn tại.)

Our sun is actually an orange, dwarf star. Although it is not nearly the ........(hot) star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We ........... (common) think of the sun as burning, yet it's too hot to burn and is composed of elemental gases. The sun is 865,000 miles in diameter and has a mass one-third of a million times ..........(great) than the Earth's. Scientists believe that it's two billion years old and,...
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Our sun is actually an orange, dwarf star. Although it is not nearly the ........(hot) star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We ........... (common) think of the sun as burning, yet it's too hot to burn and is composed of elemental gases.
The sun is 865,000 miles in diameter and has a mass one-third of a million times ..........(great) than the Earth's. Scientists believe that it's two billion years old and, instead of cooling, is still getting hotter. Perhaps, within the next two billion years, it will reach a temperature of sufficient intensity to destroy the Earth.
The sun's corona is almost as hot as interior. Solar prominences-tongues of hot gas-leap outward a half million miles from the sun's surface at speeds reaching 250,000 miles an hour. ........... (fortune) , these prominences do not travel the full ninety three million miles to earth, nor are their terrific temperatures transmitted through space. Some of the energy from these ......... (urban) does not reach our atmosphere, however, and is believed to cause changes in weather.Our sun is actually an orange, dwarf star. Although it is not nearly the hottest star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We commonly think of the sun as burning, yet it's too hot to burn and is composed of elemental gases.
The sun is 865,000 miles in diameter and has a mass one-third of a million times greater than the Earth's. Scientists believe that it's two billion years old and, instead of cooling, is still getting hotter. Perhaps, within the next two billion years, it will reach a temperature of sufficient intensity to destroy the Earth.

3
4 tháng 1 2020

Our sun is actually an orange, dwarf star. Although it is not nearly the ....hottest ....(hot) star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We ......commonly ..... (common) think of the sun as burning, yet it's too hot to burn and is composed of elemental gases.
The sun is 865,000 miles in diameter and has a mass one-third of a million times ......greater ....(great) than the Earth's. Scientists believe that it's two billion years old and, instead of cooling, is still getting hotter. Perhaps, within the next two billion years, it will reach a temperature of sufficient intensity to destroy the Earth.
The sun's corona is almost as hot as interior. Solar prominences-tongues of hot gas-leap outward a half million miles from the sun's surface at speeds reaching 250,000 miles an hour. ........Fortunately... (fortune) , these prominences do not travel the full ninety three million miles to earth, nor are their terrific temperatures transmitted through space. Some of the energy from these ..disturbances ....... (urban) does not reach our atmosphere, however, and is believed to cause changes in weather.Our sun is actually an orange, dwarf star. Although it is not nearly the hottest star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We commonly think of the sun as burning, yet it's too hot to burn and is composed of elemental gases.
The sun is 865,000 miles in diameter and has a mass one-third of a million times greater than the Earth's. Scientists believe that it's two billion years old and, instead of cooling, is still getting hotter. Perhaps, within the next two billion years, it will reach a temperature of sufficient intensity to destroy the Earth.

4 tháng 1 2020

Our sun is actually an orange, dwarf star. Although it is not nearly the hottest star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We commonly think of the sun as burning, yet it's too hot to burn and is composed of elemental gases.
The sun is 865,000 miles in diameter and has a mass one-third of a million times greater than the Earth's. Scientists believe that it's two billion years old and, instead of cooling, is still getting hotter. Perhaps, within the next two billion years, it will reach a temperature of sufficient intensity to destroy the Earth.
The sun's corona is almost as hot as interior. Solar prominences-tongues of hot gas-leap outward a half million miles from the sun's surface at speeds reaching 250,000 miles an hour. Fortunately, these prominences do not travel the full ninety three million miles to earth, nor are their terrific temperatures transmitted through space. Some of the energy from these disurbances does not reach our atmosphere, however, and is believed to cause changes in weather.Our sun is actually an orange, dwarf star. Although it is not nearly the hottest star known, its surface temperature is about 10,000'F and that of its interior is thought to be in the range of 20,000,000'F. We commonly think of the sun as burning, yet it's too hot to burn and is composed of elemental gases.
The sun is 865,000 miles in diameter and has a mass one-third of a million times greater than the Earth's. Scientists believe that it's two billion years old and, instead of cooling, is still getting hotter. Perhaps, within the next two billion years, it will reach a temperature of sufficient intensity to destroy the Earth

Read the text again and answer the following questions.1. What are humans still wondering nowadays?2. Why does a habitable planet need to have the correct amount of air?3. What happens if a planet is too small?4. How long does a day on Mars last?5. Why can we not live on Mars? THE TEXT:Nowadays humans are still wondering what planets in outer space might support life.Scientists say planets need to meet three main conditions to support life. Firstly, they must have liquid water, so their...
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Read the text again and answer the following questions.

1. What are humans still wondering nowadays?

2. Why does a habitable planet need to have the correct amount of air?

3. What happens if a planet is too small?

4. How long does a day on Mars last?

5. Why can we not live on Mars?

 

THE TEXT:

Nowadays humans are still wondering what planets in outer space might support life.

Scientists say planets need to meet three main conditions to support life. Firstly, they must have liquid water, so their temperature must not be too high or too low. Secondly, the planets need to have the correct amount of air so that they can hold an atmosphere around. Finally, their size is also important. If a planet is too small, its gravity is not strong enough to hold an enough amount of air. If it is too big, its gravity will be so strong that it will hold too much air.

Scientists are using space telescopes to find habitable planets. According to them, Mars is one of the most promising planets for life in our solar system. It is a planet like Earth. Its days last for 24.5 hours and its seasons are similar to Earth's. Although scientists have not found actual water on Mars, there seems to be traces of it on the planet's surface. However, the climate on Mars is unsuitable for human life because it is too cold and Mars lacks oxygen to support human life.

 

1
19 tháng 8 2023

1. They are still wondering what planets in outer space might support life.

2. It needs to have the correct amount of air to hold an atmosphere around it.

3. Its gravity is not strong enough to hold an enough amount of air.

4. Its day lasts for 24.5 hours.

5. Because it is too cold and lacks oxygen.

n Janqry I9,200,6,NASA* launched a new spacecraft called New Horizons into outer space. New Horizons is expected to travel about 3 billion miles for 10 years at around 50,000 kilometers per hour and take pictures of Pluto (the last planet in the solar system*),its moons, and the Kuiper KY-pun) Belt. It will also analyze Pluto's atmosphere and temperature. Scientists say that now is our last chance to send a spacecraft to Pluto. Otherwise Pluto will become too far from Earth and it will be more...
Đọc tiếp

n Janqry I9,200,6,NASA* launched a new spacecraft called New Horizons into outer space. New Horizons is expected to travel about 3 billion miles for 10 years at around 50,000 kilometers per hour and take pictures of Pluto (the last planet in the solar system*),its moons, and the Kuiper KY-pun) Belt. It will also analyze Pluto's atmosphere and temperature. Scientists say that now is our last chance to send a spacecraft to Pluto. Otherwise Pluto will become too far from Earth and it will be more difficult to get near the planet. The New Horizons mission is important because no spacecraft has ever been sent that far before. The information collected during this mission will help to explain what the outer edges of the solar system look like and how the solar system was formed 4.5 billion years ago. * NASA: National Aeronautics and Space Administration * the Solar System: the Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, IJranus, Neptune, Pluto

 

the word 'its' line 7 refer to:...

the word 'it' line 8 refer to:...

2
6 tháng 8 2020

sr các bạn its line 3 and it line 3

6 tháng 8 2020

Bạn phải đánh dấu 2 từ ở 2 câu đấy thì mới biết đc .

19 tháng 8 2023

1. There must be enough liquid water on the planet.                         🗹

2. The planet must have craters on its surface.                                 ◻

3. The planet must hold an atmosphere.                                          🗹

4. The planet must have at least two moons.                                    ◻

5. The planet must have enough oxygen in the air.                            🗹

IV.Read the passage. Decide which of the following statements is True(T), Palse(F) or No information(NI) We are all destroying the Earth. The seas and rivers are too dirty to swim in it. These is so much smoke in the air that it's unhealthy to live in many of world's cities. We've cut down so many trees that there are now areas of wasteland all over the world. Farmers in many parts of Africa can not got grow enough to eat and in some Asian countries there is too little rice. Wild animals are...
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IV.Read the passage. Decide which of the following statements is True(T), Palse(F) or No information(NI)

We are all destroying the Earth. The seas and rivers are too dirty to swim in it. These is so much smoke in the air that it's unhealthy to live in many of world's cities. We've cut down so many trees that there are now areas of wasteland all over the world. Farmers in many parts of Africa can not got grow enough to eat and in some Asian countries there is too little rice. Wild animals are quickly disappearing because we have killed too many. However, it isn't enough simply to talk about the problem. We must act before it's too late to do anything about it. Join us now. Save the Earth. This is too important to ignore

1._____ We can swim in the seas and rivers because they are not polluted now.

2._____ We are planting a lot of trees in areas of wasteland.

3._____ There isn’t rice enough to eat in many parts of Africa.

4._____ We are killing too many wild animals.

5._____ It’s not important to save the Earth.

6._____ It's pleasant to live in a lot of cities in the world now

7._____There are areas of wasteland now because many trees are cut down

8._____Rice can grow enough in many parts of Africa

9._____Animals are not as many now as they were a few years ago

10.____It's time to act if we want to save the Earth

1
13 tháng 11 2017

IV.Read the passage. Decide which of the following statements is True(T), Palse(F) or No information(NI)

We are all destroying the Earth. The seas and rivers are too dirty to swim in it. These is so much smoke in the air that it's unhealthy to live in many of world's cities. We've cut down so many trees that there are now areas of wasteland all over the world. Farmers in many parts of Africa can not got grow enough to eat and in some Asian countries there is too little rice. Wild animals are quickly disappearing because we have killed too many. However, it isn't enough simply to talk about the problem. We must act before it's too late to do anything about it. Join us now. Save the Earth. This is too important to ignore

1.__F___ We can swim in the seas and rivers because they are not polluted now.

2.___F__ We are planting a lot of trees in areas of wasteland.

3.__T___ There isn’t rice enough to eat in many parts of Africa.

4.___T__ We are killing too many wild animals.

5.__F___ It’s not important to save the Earth.

6.___F__ It's pleasant to live in a lot of cities in the world now

7.___T__There are areas of wasteland now because many trees are cut down

8.__F___Rice can grow enough in many parts of Africa

9.___T__Animals are not as many now as they were a few years ago

10.__T__It's time to act if we want to save the Earth

13 tháng 11 2017

thanks ạyeu

Read the text and answer the questions. Mars is the fourth planet from the Sun and is commonly referred to as the Red Planet. The rocks, soil and sky have a red or pink hue. The distinct red color was observed by stargazers throughout history. It was given its name by the Romans in honor of their god of war. Other civilizations have had similar names. The ancient Egyptians named the planet Her Descher meaning the red one. Before space exploration, Mars was considered the best candidate for...
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Read the text and answer the questions.

Mars is the fourth planet from the Sun and is commonly referred to as the Red Planet. The rocks, soil and sky have a red or pink hue. The distinct red color was observed by stargazers throughout history. It was given its name by the Romans in honor of their god of war. Other civilizations have had similar names. The ancient Egyptians named the planet Her Descher meaning the red one.

Before space exploration, Mars was considered the best candidate for harboring extraterrestrial life. Astronomers thought they saw straight lines crisscrossing its surface. This led to the popular belief that irrigation canals on the planet had been constructed by intelligent beings. In 1938, when Orson Welles broadcasted a radio drama based on the science fiction classic War of the Worlds by H.G. Wells, enough people believed in the tale of invading Martians to cause a near panic.

Another reason for scientists to expect life on Mars had to do with the apparent seasonal color changes on the planet's surface. This phenomenon led to speculation that conditions might support a bloom of Martian vegetation during the warmer months and cause plant life to become dormant during colder periods.

1.What's another name of Mars?

...............................................................................................................................................

2.Why did Mars haveb its name ?

...............................................................................................................................................

3.Was Mars considered the best candidate for harboring extraterresrial life before space exploration?

...............................................................................................................................................

4.When did Orson Welles broadcast a radio drama based on the science fiction classic War of the Worlds by H.G?

...............................................................................................................................................

2
5 tháng 5 2019

Read the text and answer the questions.

Mars is the fourth planet from the Sun and is commonly referred to as the Red Planet. The rocks, soil and sky have a red or pink hue. The distinct red color was observed by stargazers throughout history. It was given its name by the Romans in honor of their god of war. Other civilizations have had similar names. The ancient Egyptians named the planet Her Descher meaning the red one.

Before space exploration, Mars was considered the best candidate for harboring extraterrestrial life. Astronomers thought they saw straight lines crisscrossing its surface. This led to the popular belief that irrigation canals on the planet had been constructed by intelligent beings. In 1938, when Orson Welles broadcasted a radio drama based on the science fiction classic War of the Worlds by H.G. Wells, enough people believed in the tale of invading Martians to cause a near panic.

Another reason for scientists to expect life on Mars had to do with the apparent seasonal color changes on the planet's surface. This phenomenon led to speculation that conditions might support a bloom of Martian vegetation during the warmer months and cause plant life to become dormant during colder periods.

1.What's another name of Mars?

It's Red Planet

2.Why did Mars have its name ?

It was given its name by the Romans in honor of their god of war

3.Was Mars considered the best candidate for harboring extraterresrial life before space exploration?

Yes , it was

4.When did Orson Welles broadcast a radio drama based on the science fiction classic War of the Worlds by H.G?

In 1938

#Yumi

5 tháng 5 2019

1. Another name of Mars is the Red Planet.

2. It was given its name by the Romans in honor of their god of war.

3. Yes, it was .

4. In 1938

Since the world has become ............ (industry),there has been an increase in the number of animal species that have either become extinct or have neared extinction. Bengal tiger, for instance, which once roamed the jungles in vast number, now only about 2,300 and by the year 2025, their population is ............ (estimate)to be down to zero. What is alarming about the case of the Bengal tiger is that this ............ (extinct) will have been caused almost entirely by poachers who...
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Since the world has become ............ (industry),there has been an increase in the number of animal species that have either become extinct or have neared extinction. Bengal tiger, for instance, which once roamed the jungles in vast number, now only about 2,300 and by the year 2025, their population is ............ (estimate)to be down to zero. What is alarming about the case of the Bengal tiger is that this ............ (extinct) will have been caused almost entirely by poachers who according to some sources, are not interested in material gain but in ...........(p gratification. This is an example of the callousness that is part of what is causing the problem of extinction. Animals like Bengal tigers as well as other endangered species are a valuable part of the world's ecosystem. .................(nation) laws protecting these animals must be enacted to ensure their .......(survive) and the survival of our planet.
Countries around the world have begun to deal with the problem in ..........(vary) ways. Some countries, in order to circumvent the problem, have allocated large amounts of land to animal reserves. They then charge admission to help defray the costs of maintaining the parks and they often must also depend on world organizations for support. With the money they get, they can invest in equipment, and patrols to protect the animals. Another solution that is an attempt to stem the tide of animal extinction is an international boycott of products made from endangered species. This seems fairly effective but it will not, by itself, prevent animals from being hunted and killed.

5
3 tháng 1 2020

chỗ trống 4 : person

3 tháng 1 2020

ai giúp với xíu đi học r

Unlike buried treasure and some minerals, fossils are usually not valuable in themselves. However, most of the fossils you find will be of greatest value to you. They will help you learn much about the geologic history of the earth and its inhabitants. If it were not for fossils, we would have no way of knowing about the animals that once roamed the earth or that once crawled on the bottom of the ancient seas. In fact, we would not even know for sure that there were once seas in some regions...
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Unlike buried treasure and some minerals, fossils are usually not valuable in themselves. However, most of the fossils you find will be of greatest value to you. They will help you learn much about the geologic history of the earth and its inhabitants.

If it were not for fossils, we would have no way of knowing about the animals that once roamed the earth or that once crawled on the bottom of the ancient seas. In fact, we would not even know for sure that there were once seas in some regions if it were not for the many fossils of sea animals that we find there.

You can look at some fossils and see for yourself the shape of the ancient animals. Even if you collect only bits of one kind of fossil, you may still be able to tell what it looked like. Making sense out of fossil bits is a little like working a jigsaw puzzle. Sometimes you will lose pieces, but you can still recognize the picture and even use your imagination to fill in missing details. The habits of ancient sea animals are not so easy to determine. Therefore, scientists study the structure and the habits of similar living animals to learn what the ancient ones must have been like. There are some things, however, that neither the study of fossils nor the study of living animals can tell us. For example, no one knows what colour most ancient sea animals were. Also, since the soft parts disappeared soon after death, many details of their internal structure are unknown. So the pictures of ancient sea creatures (as well as dinosaurs!) are what scientists think the animals looked like. Reconstructing the life of an ancient sea animal on the basis of fossil evidence and the characteristics of similar living animals is a little like relying on circumstantial evidence in court.

1. This passage is mainly about animals that __________.

A. have very tough hides

B. once lived on the earth

C. inhabit the seas of today

D. are becoming extinct

2. With the help of fossils we can __________.

A. reconstruct life of the past

B. predict the future

C. explain the changes of the seasons

D. save some species of animals from extinction

3. Many details of ancient animals are lacking because __________.

A. many species have not been found

B. volcanic disasters have permanently buried many fossils

C.many fossils lie in deep water and cannot be recovered

D. soon after death the soft parts of the body decay

49. To “determine" in the passage is closest in meaning to __________.

A. come across

B. study

C. find out

D. imitate

50. This passage implies that a scientist's evaluation of the past is based on __________.

A. laboratory experiments with live animals

B. a few facts mixed with a lot of opinions

C. predictions made in the past and present

D. field studies of our society

1
4 tháng 7 2019

1 B. once lived on the earth

2 A. reconstruct life of the past

3 D. soon after death the soft parts of the body decay

4 C. find out

5 B. a few facts mixed with a lot of opinions

There’s much more water than land on the (1) ___ of the earth. The seas and oceans cover nearly (2) ___ of the whole world, and only one-fifth of (3) ___ land. If you traveled over the earth in different directions, you would have to spend (4) ___ more of your time (5) ___ on water that on roads or railways. We sometimes forget that for every mile of land (6) ___ four miles of water. There’s so much water in the surface of our earth that we (7) ___ to use two words to describe. We use the word...
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There’s much more water than land on the (1) ___ of the earth. The seas and oceans cover nearly (2) ___ of the whole world, and only one-fifth of (3) ___ land. If you traveled over the earth in different directions, you would have to spend (4) ___ more of your time (5) ___ on water that on roads or railways. We sometimes forget that for every mile of land (6) ___ four miles of water.

There’s so much water in the surface of our earth that we (7) ___ to use two words to describe. We use the word SEAS (8) ___ those parts of water surface which (9) ___ only few hundreds of mile, the word OCEANS to describe the huge area of water (10) ___ are thousands of miles wide and very deep.

1. A. cover B. surface C. outer D. outside

2. A. four-fives B. four-fifth C. four fifths D. fourth-fifths

3. A. it is B. it’s C. its D. them are

4. A. many B. much C. few D. too

5. A. to move B. move C. moved D. moving

6. A. there are B. there is C. there has D. have

7. A. must B. should C. have D. would

8. A. describing B. describes C. describe D. to describe

9. A. is B. are C. has D. will be

10. A. that’s B. which C. where D. whose

2
21 tháng 6 2017

There’s much more water than land on the (1) _surface__ of the earth. The seas and oceans cover nearly (2) _four-fifths__ of the whole world, and only one-fifth of (3) _its__ land. If you traveled over the earth in different directions, you would have to spend (4) __much_ more of your time (5) _moving__ on water that on roads or railways. We sometimes forget that for every mile of land (6) _there are__ four miles of water.

There’s so much water in the surface of our earth that we (7) __have_ to use two words to describe. We use the word SEAS (8) _describes__ those parts of water surface which (9) _is__ only few hundreds of mile, the word OCEANS to describe the huge area of water (10) _which__ are thousands of miles wide and very deep.

1. A. cover B. surface C. outer D. outside

2. A. four-fives B. four-fifth C. four fifths D. fourth-fifths

3. A. it is B. it’s C. its D. them are

4. A. many B. much C. few D. too

5. A. to move B. move C. moved D. moving

6. A. there are B. there is C. there has D. have

7. A. must B. should C. have D. would

8. A. describing B. describes C. describe D. to describe

9. A. is B. are C. has D. will be

10. A. that’s B. which C. where D. whose

21 tháng 6 2017

There’s much more water than land on the (1) ___ of the earth. The seas and oceans cover nearly (2) ___ of the whole world, and only one-fifth of (3) ___ land. If you traveled over the earth in different directions, you would have to spend (4) ___ more of your time (5) ___ on water that on roads or railways. We sometimes forget that for every mile of land (6) ___ four miles of water.

There’s so much water in the surface of our earth that we (7) ___ to use two words to describe. We use the word SEAS (8) ___ those parts of water surface which (9) ___ only few hundreds of mile, the word OCEANS to describe the huge area of water (10) ___ are thousands of miles wide and very deep.

1. A. cover B. surface C. outer D. outside

2. A. four-fives B. four-fifth C. four fifths D. fourth-fifths

3. A. it is B. it’s C. its D. them are

4. A. many B. much C. few D. too

5. A. to move B. move C. moved D. moving

6. A. there are B. there is C. there has D. have

7. A. must B. should C. have D. would

8. A. describing B. describes C. describe D. to describe

9. A. is B. are C. has D. will be

10. A. that’s B. which C. where D. whose