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10 tháng 5 2022

As we explore the (1) _____universe ______, we naturally ask, “Is there life on other planets?” In 1976, NASA’s twin Viking landers touched (2) ____surface _______ on Mars in an attempt to answer a weighty question: Is there life on the Red Planet? Since then, NASA and other space agencies have sent many more (3) _____    missions ______ to Mars. However; the answer so far is, “We don’t know, but we’ll keep searching.” All life on Earth needs liquid water to (4) _____ survive  ______. Since spacecraft haven’t found any liquid water on Mars’ (5) _____ down    ______, scientists think that there is no life there. But what about below the surface? Spacecraft have discovered (6) ____might_______ water in Mars’ polar ice caps and in clouds of ice crystals. This means that there (7) _____ frozen______ be liquid water below the surface where it’s warmer. NASA plans to continue to (8) _____explore______ Mars every two years. In future missions, we’ll explore below the surface and search for liquid water - and life!

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

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.                            🗹

17 tháng 1 2018

1.on

2.cover

3.the

4.in

5.moving

6.for

7.have

8.describle

9.is

10 .and

17 tháng 1 2018

I fill in the blank of the following passage with one suitable word.Write your answer on your answer sheet

there is much more water than land..ON.......the surface of the earth .The sea and oceans.....COVER....nearly four-fifths of the whole world , and only one-fifths of the whole world and only one fifth of....THE....... land. If you traveled over the earth .....IN....different directions you would have to spend much more of your time.......MOVING.....on water than on roads or railways .We sometimes forget that......FOR....every mile of land there is four miles of water

there is much water on the surface of our earth that we ..HAVE.......to use two words to describe. We use the word seas to...DESCRIBE..... those parts of water surface which...IS........ only a few hundreds of milea wide the word oceans to describe the huge ares of water which are thousands of miles wide.....AND.....very deep

13 tháng 5 2021

1 to send

2 would fly

3 have searched

4 are called

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

II. Fill in the blank of the following passage with ONE suitable word. Write your answer on your answer sheet. There is much more water than land (1)___________ the surface of the earth. The sea and oceans (2)_____________ nearly four-fifths of the whole world, and only one-fifth of (3)__________ land. If you traveled over the earth (4)______ ________different directions, you would have to spend much more of your time (5)________________ on water than on roads or railways. We sometimes forget...
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II. Fill in the blank of the following passage with ONE suitable word. Write your answer on your answer sheet.

There is much more water than land (1)___________ the surface of the earth. The sea and oceans (2)_____________ nearly four-fifths of the whole world, and only one-fifth of (3)__________ land. If you traveled over the earth (4)______ ________different directions, you would have to spend much more of your time (5)________________ on water than on roads or railways. We sometimes forget that (6)_______________ every mile of land there is four miles of water.

There is much water on the surface of our earth that we (7)______________ to use two words to describe. We use the word seas to (8)______________ those parts of water surface which (9)______________ only a few hundreds of miles wide, the word oceans to describe the huge areas of water which are thousands of miles wide (10)__________ very deep.

III. Read the following passage carefully and choose the best answer to each question. Identify your answer by writing the corresponding letter A, B, C or D on your answer sheet.

One of the most urgent environmental problems in the world today is the shortage of clean water. Having clean drinking water is basic human right. But acid rain, industrial pollution and garbage have made many sources of water undrinkable. Lakes, reservoirs and even entire seas have become vast pools of poison. Lake Baikal in Russia is one of the largest lakes in the world. It contains a rich variety of animals and plants, including 1,300 rare species that do not exist anywhere else in the world. But they are being destroyed by the massive volumes of industrial effluent which pours into the lake everyday. Even where law existed, the government did not have the power to enforce them. Most industries simply ignore the regulations. The Mediterranean Sea occupies 1% of the world’s water surface. But it is the dumping ground for 50% of all marine pollution. Almost 16 countries regularly throw industrial wastes a few miles off shore.

Water is free to everyone. A few years ago people thought that the supply of clean water in the world was limitless. Today, many water supplies have been ruined by pollution and sewage. Clean water is now scarce, and we are at last beginning to respect this precious source. We should do something now.

1. According to the writer, one environmental problem in the world today is ________ .

A. acid rain B. industrial pollution. C. safe water shortage. D. population explosion .

2. Many sources of water are not drinkable because of _______ .

A. acid rain. B. industrial pollution. C. garbage D. all A, B, C, are correct

3. What is serious problem of Lake Baikal in Russia?

A. It contains a rich variety of animals and plants.

B. It is polluted by massive volumes of industrial wastes discharged into it .

C. It has 1,300 rare species that do not exist anywhere else in the world .

D. The government did not have the power to enforce laws and regulations.

4. How many countries throw industrial waste into the Mediterranean Sea regularly?

A. nearly 16 B. exactly 16. C. exactly 15 D. less than 15.

5. What is the message to the reader?

A. We should take action to protect our water resources.

B. We should take all water resources into account.

C. We should limit the use of water resources.

D. We should encourage people to use safe water.

1
28 tháng 12 2017

II. Fill in the blank of the following passage with ONE suitable word. Write your answer on your answer sheet.

There is much more water than land (1)____on_______ the surface of the earth. The sea and oceans (2)_____are________ nearly four-fifths of the whole world, and only one-fifth of (3)___surface _______ land. If you traveled over the earth (4)____in_____different directions, you would have to spend much more of your time (5)______travelling__________ on water than on roads or railways. We sometimes forget that (6)______each_________ every mile of land there is four miles of water.

There is much water on the surface of our earth that we (7)______have________ to use two words to describe. We use the word seas to (8)____describle __________ those parts of water surface which (9)_______are _______ only a few hundreds of miles wide, the word oceans to describe the huge areas of water which are thousands of miles wide (10)_____and_____ very deep.

III. Read the following passage carefully and choose the best answer to each question. Identify your answer by writing the corresponding letter A, B, C or D on your answer sheet.

One of the most urgent environmental problems in the world today is the shortage of clean water. Having clean drinking water is basic human right. But acid rain, industrial pollution and garbage have made many sources of water undrinkable. Lakes, reservoirs and even entire seas have become vast pools of poison. Lake Baikal in Russia is one of the largest lakes in the world. It contains a rich variety of animals and plants, including 1,300 rare species that do not exist anywhere else in the world. But they are being destroyed by the massive volumes of industrial effluent which pours into the lake everyday. Even where law existed, the government did not have the power to enforce them. Most industries simply ignore the regulations. The Mediterranean Sea occupies 1% of the world’s water surface. But it is the dumping ground for 50% of all marine pollution. Almost 16 countries regularly throw industrial wastes a few miles off shore.

Water is free to everyone. A few years ago people thought that the supply of clean water in the world was limitless. Today, many water supplies have been ruined by pollution and sewage. Clean water is now scarce, and we are at last beginning to respect this precious source. We should do something now.

1. According to the writer, one environmental problem in the world today is ________ .

A. acid rain B. industrial pollution. C. safe water shortage. D. population explosion .

2. Many sources of water are not drinkable because of _______ .

A. acid rain. B. industrial pollution. C. garbage D. all A, B, C, are correct

3. What is serious problem of Lake Baikal in Russia?

A. It contains a rich variety of animals and plants.

B. It is polluted by massive volumes of industrial wastes discharged into it .

C. It has 1,300 rare species that do not exist anywhere else in the world .

D. The government did not have the power to enforce laws and regulations.

4. How many countries throw industrial waste into the Mediterranean Sea regularly?

A. nearly 16 B. exactly 16. C. exactly 15 D. less than 15.

5. What is the message to the reader?

A. We should take action to protect our water resources.

B. We should take all water resources into account.

C. We should limit the use of water resources.

D. We should encourage people to use safe water.

31 tháng 3 2019

1.It is possible that there are other forms of life on other planets

➜ There might be other forms of life on other planets (might)

2.Do you think that you may borrow this precious astronomy book from the library in 2 weeks?

➜ Do you think that borrowing this precious astronomy book from the library in 2 weeks may be allowed ? (allowed)

3.My friend asked me "Is it possible for any normal people to fly into the space?"

➜My friend asked me if it was possible for any normal people to fly into the space (if)

4."What might the inhabitants of Mars look like?",Tommy wondered

➜Tom wondered what the inhabitants of Mars might look like (what)

13 tháng 7 2021

Fill in the gap with a word given in the box

planet

region

explorations

surface

climate

languages

invention

Difference

 

1. There have been many ………explorations………..to Mars by human beings since the mid 20th century.

2. There are many reasons why the …………surface………on Mars is not suitable for human life.

3. The ……invention…………of telescope has helped people to see planets in the distance.

4. I don’t like the climate in this………planet….. because it has a lot of rain and wind.

5. What do you think is the biggest ………Difference………between Earth and Mars?

6. It is the only ………region…………that has water in liquid form on the surface.

7. What is the part of the Earth’s ……climate…………and atmosphere in which plants and animals can live?

 

8.  Can those aliens understand all ………languages……human speak?

 

13 tháng 7 2021

1.explorations

2.surface

3.invention

4.planet

5.difference

6.region

7.climate

8.languages