K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

Almost all the energy on the earth comes from the sun. Heat from the sun makes the earth warm enough for life. Plants use the sun's energy to live and grow. Plants give off a gas called oxygen. Animals eat plants and breathe oxygen. Animals need plants in order to live, and plants need the sun. You use plants to create heat and energy. You can burn wood from trees. You can burn fossil fuels called coal, gas, and oil. Fossil fuels formed deep underground from plants and animals that died millions of years ago.

The sun's energy can also do harm. Too much sunlight can burn your skin, causing sunburn. Harmful rays from the sun can also cause a disease called skin cancer. Looking right at the sun can harm your eyes. You need to be careful of the sun. The center of the sun is called the core, which is extremely hot. All the energy of the sun comes from the nuclear reactions in its core. It takes a long time for the energy from the core to reach the surface of the earth - about 170,000 years!

11. According to the passage, the sun is vital because ______ .

A. it has its hot core

B. plants live and grow better with the sun's energy

C. plants, animals and people need energy from the sun

D. fossil fuels will be used up and people turn to the sun's energy

12. Fossil fuels formed deep underground from______ .

A. heat from the sun

B. earth and rock

C. oil and gas

D. dead plants and animals

13. The title for this passage could be

A. "Energy from the Sun"

B. "Oxygen and Plants"

C. "Animals and Plants"

D. "The Sun and Fossil Fuels"

14. Harmful rays from the sun may cause ____________ .

A. fever

B. skin cancer

C. pain

D. headache

15. All of the following statements are NOT true EXCEPT

A. the sun's heat does no harm to people

B. looking right at the sun is a way to make your eyes better

1
11 tháng 5 2021

bạn hỏi câu nào thế đúng rồi mà chỉ có câu 15 thiếu ý thôi

recycling/ nothing/ list/ vegetables/ something/ save/ trouble/ polluting/ taking. Our environment is in (1) ______. Modern ways of living and today’s industries are (2) ______ it. Most people think there is (3) ______ they can do. This is not true. Everyone can do something to help (4) ______ our environment. Here is a (5) ______ of things you can do. Help to cut pollution by (6) ______ the bus to work instead of your car. Buy fruit and (7) ______ that have not been treated...
Đọc tiếp
recycling/ nothing/ list/ vegetables/ something/ save/ trouble/ polluting/ taking. Our environment is in (1) ______. Modern ways of living and today’s industries are (2) ______ it. Most people think there is (3) ______ they can do. This is not true. Everyone can do something to help (4) ______ our environment. Here is a (5) ______ of things you can do.
    • Help to cut pollution by (6) ______ the bus to work instead of your car.
    • Buy fruit and (7) ______ that have not been treated with pesticides.
    • Recycle all your cans, bottles and paper. There should be a (8) ______ center somewhere near your home, so take them there.
Most of the world’s energy comes from the sun. The sun’s energy is in wood, oil, and other things that people use for energy. VI. Read the text then answer true or false People use many sources of energy. Ancient people used only their arms, hands, and simple tools until they discovered fire. Later, people learned to use the energy of the wind to sail ships. Then they learned to use animals to do work. In the eighteenth and nineteenth centuries, people began to use machines. The first machines used steam. They burned coal to heat water. The hot water turned into steam, and the steam engine did the work. Later, people began to use the gasoline engine, and today people are using nuclear energy. Energy is one of the basic concepts, or ideas, of physics. It is the ability to do work. Without energy we could live. We need energy to work, and scientists are always looking for new sources of energy. 1. None of the world’s energy comes from the sun. 2. Wind, steam, and gasoline are sources of energy. 3. People have never used nuclear energy. 4. Energy is the ability to do work. 5. We need new sources of energy.
2
9 tháng 4 2018

recycling/ nothing/ list/ vegetables/ something/ save/ trouble/ polluting/ taking. Our environment is in (1)trouble. Modern ways of living and today’s industries are (2)polluting it. Most people think there is (3) nothing they can do. This is not true. Everyone can do something to help (4) save our environment. Here is a (5)list of things you can do.

    • Help to cut pollution by (6)taking the bus to work instead of your car.
    • Buy fruit and (7) vegetables that have not been treated with pesticides.
    • Recycle all your cans, bottles and paper. There should be a (8) recycling center somewhere near your home, so take them there.
9 tháng 4 2018

Our environment is in trouble. Modern ways of living and today’s industries are polluting it. Most people think there is nothing they can do. This is not true. Everyone can do something to help save our environment. Here is a list of things you can do.
- Help to cut pollution by taking the bus to work instead of your car.
- Buy fruit and vegetables that have not been treated with pesticides.
- Recycle all your cans, bottles and paper. There should be a recycling center somewhere near your home, so take them there.

Most of the world’s energy comes from the sun. The sun’s energy is in wood, oil, and other things that people use for energy.

VI. Read the text then answer true or false

People use many sources of energy. Ancient people used only their arms, hands, and simple tools until they discovered fire. Later, people learned to use the energy of the wind to sail ships. Then they learned to use animals to do work. In the eighteenth and nineteenth centuries, people began to use machines. The first machines used steam. They burned coal to heat water. The hot water turned into steam, and the steam engine did the work. Later, people began to use the gasoline engine, and today people are using nuclear energy. Energy is one of the basic concepts, or ideas, of physics. It is the ability to do work. Without energy we could live. We need energy to work, and scientists are always looking for new sources of energy.

1. None of the world’s energy comes from the sun. F

2. Wind, steam, and gasoline are sources of energy. T

3. People have never used nuclear energy. F

4. Energy is the ability to do work. T

5. We need new sources of energy. T

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.   As viewed from space, Earth’s distinguishing characteristics are its blue waters and white clouds. Enveloped by an ocean of air consisting of 78% nitrogen and 21% oxygen, the planet is the only one in our solar system known to harbor life. Circling the Sun at an average distance of 149 million kilometers (93 million miles), Earth is the third planet from...
Đọc tiếp

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.

   As viewed from space, Earth’s distinguishing characteristics are its blue waters and white clouds. Enveloped by an ocean of air consisting of 78% nitrogen and 21% oxygen, the planet is the only one in our solar system known to harbor life. Circling the Sun at an average distance of 149 million kilometers (93 million miles), Earth is the third planet from the Sun and the fifth largest planet in the solar system.

 

   Our planet’s rapid spin and molten nickel-iron core give rise to an extensive magnetic field which, coupled the atmosphere, shields us from nearly all of the harmful radiation coming from the Sun and other stars. Earth’s atmosphere protects us from meteors as well, most of which burn up in the Earth’s atmosphere before they can strike the surface. The planet active geological processes have left no evidence of the ancient pelting it almost certainly received soon after it formed about 4.6 billion years ago. The Earth has a single natural satellite – the moon.

QuestionWhich of the following helps to create the Earth’s magnetic fields?

A. Its blue waters

B. Its nitrogen atmosphere

C. Its molten metal core

D. The moon

2
17 tháng 12 2018

Đáp án C.

3 tháng 3 2022

C

Use the cues given to write correct sentences 1. For a long time / people / use / water / power machines 2. Solar panels / place / the roof / a house / and / sun's energy / use / heat water 3. We / use energy / the sun, the wind, and the water 4. Many countries / already using / solar energy 5. The earth's fossil fuels / running out 6. We / looking / cheap, clean, effective source / energy / not cause pollution or waste natural resource 7. Recently / wind / use / generate...
Đọc tiếp

Use the cues given to write correct sentences

1. For a long time / people / use / water / power machines

2. Solar panels / place / the roof / a house / and / sun's energy / use / heat water

3. We / use energy / the sun, the wind, and the water

4. Many countries / already using / solar energy

5. The earth's fossil fuels / running out

6. We / looking / cheap, clean, effective source / energy / not cause pollution or waste natural resource

7. Recently / wind / use / generate electricity

8. The sun / supply / all energy / used / grow plants / evaporate water / rain / and / maintain / temperature / planet

9. At present / most / our electricity / come / use / coal, gas, oil or nuclear power

10. Today / water power / mostly / use / generate electricity

11. This power / could / provide / sun

12. If we / able / collect solar energy / we / be sure / have enough power

13. Scientists / try / find / other alternative sources / energy

14. One percent / soalr energy / reach / earth / anough / provide power / the total population

15. Viet Nam / an advanced teachnology / solar energy

16. The energy / store / a number of days

17. Car / use solar energy / gas / by the year 2030

18. Energy / wind / use centuries / move ships, grind grain, pump water / and / do other forms / work

19. On / cloudy / you / use / solar energy / too

20. Almost all our energy / come / oil / gas / natural gas / . / We / them / fossil fuels

1
24 tháng 10 2017

Use the cues given to write correct sentences

1. For a long time / people / use / water / power machines

For a long time people have used water to power machines

2. Solar panels / place / the roof / a house / and / sun's energy / use / heat water

Solar panels are placed on the roof of a house and the sun's energy is used to heat water

3. We / use energy / the sun, the wind, and the water

We use energy from the sun, the wind, and the water

4. Many countries / already using / solar energy

Many countries have already been using solar energy

5. The earth's fossil fuels / running out

The earth's fossil fuels are running out

6. We / looking / cheap, clean, effective source / energy / not cause pollution or waste natural resource

We are looking for a cheap, clean, effective source of energy that does not cause pollution or waste natural resource

7. Recently / wind / use / generate electricity

Recently wind has used to generate electricity

8. The sun / supply / all energy / used / grow plants / evaporate water / rain / and / maintain / temperature / planet

The sun supplies all energy used to grow plants and to evaporate water for rain and to maintain tenperature of the planet

9. At present / most / our electricity / come / use / coal, gas, oil or nuclear power

At present, most of our electricity comes from the use of coal, gas, oil or nuclear power

10. Today / water power / mostly / use / generate electricity

Today, water power is mostly used to generate electricity

11. This power / could / provide / sun

This power could be provided by the sun

12. If we / able / collect solar energy / we / be sure / have enough power

If we are able to collect solar energy, we will be sure to have enough power

13. Scientists / try / find / other alternative sources / energy

Scientists are trying to find the other alternative sources of energy

14. One percent / soalr energy / reach / earth / anough / provide power / the total population

One percent of the solar energy reaches to the earth is enough to provide the power for the total population

15. Viet Nam / an advanced teachnology / solar energy

Viet Nam can be an advanced technology in solar energy

16. The energy / store / a number of days

The energy can be stored a number of days

17. Car / use solar energy / gas / by the year 2030

Car will use solar energy instead of gas by the year 2030

18. Energy / wind / use centuries / move ships, grind grain, pump water / and / do other forms / work

Energy from the wind has been used for centuries to move ships, grind grain, pump water and tto do other forms of work

19. On / cloudy / you / use / solar energy / too

On cloudy days, you can use solar energy, too

20. Almost all our energy / come / oil / gas / natural gas / . / We / them / fossil fuels

Almost all our energy comes from oil, gas and natural gas. We call them fossil fuels

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.   As viewed from space, Earth’s distinguishing characteristics are its blue waters and white clouds. Enveloped by an ocean of air consisting of 78% nitrogen and 21% oxygen, the planet is the only one in our solar system known to harbor life. Circling the Sun at an average distance of 149 million kilometers (93 million miles), Earth is the third planet from...
Đọc tiếp

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.

   As viewed from space, Earth’s distinguishing characteristics are its blue waters and white clouds. Enveloped by an ocean of air consisting of 78% nitrogen and 21% oxygen, the planet is the only one in our solar system known to harbor life. Circling the Sun at an average distance of 149 million kilometers (93 million miles), Earth is the third planet from the Sun and the fifth largest planet in the solar system.

 

   Our planet’s rapid spin and molten nickel-iron core give rise to an extensive magnetic field which, coupled the atmosphere, shields us from nearly all of the harmful radiation coming from the Sun and other stars. Earth’s atmosphere protects us from meteors as well, most of which burn up in the Earth’s atmosphere before they can strike the surface. The planet active geological processes have left no evidence of the ancient pelting it almost certainly received soon after it formed about 4.6 billion years ago. The Earth has a single natural satellite – the moon.

QuestionWhat two factors help protect the Earth from radiation?

A. Magnetic field and atmosphere

B. Blue waters and white clouds

C. Rapid spin and molten nickel-iron core

D. The Sun and the Moon

2
24 tháng 11 2017

Đáp án A.

3 tháng 3 2022

A

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.   As viewed from space, Earth’s distinguishing characteristics are its blue waters and white clouds. Enveloped by an ocean of air consisting of 78% nitrogen and 21% oxygen, the planet is the only one in our solar system known to harbor life. Circling the Sun at an average distance of 149 million kilometers (93 million miles), Earth is the third planet from...
Đọc tiếp

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.

   As viewed from space, Earth’s distinguishing characteristics are its blue waters and white clouds. Enveloped by an ocean of air consisting of 78% nitrogen and 21% oxygen, the planet is the only one in our solar system known to harbor life. Circling the Sun at an average distance of 149 million kilometers (93 million miles), Earth is the third planet from the Sun and the fifth largest planet in the solar system.

 

   Our planet’s rapid spin and molten nickel-iron core give rise to an extensive magnetic field which, coupled the atmosphere, shields us from nearly all of the harmful radiation coming from the Sun and other stars. Earth’s atmosphere protects us from meteors as well, most of which burn up in the Earth’s atmosphere before they can strike the surface. The planet active geological processes have left no evidence of the ancient pelting it almost certainly received soon after it formed about 4.6 billion years ago. The Earth has a single natural satellite – the moon.

QuestionApproximately how much of the Earth’s atmosphere is nitrogen?

A. One-fourth

B. One-half

C. Three-fourths

D. All of it

2
28 tháng 5 2018

Đáp án C.

3 tháng 3 2022

C

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.   As viewed from space, Earth’s distinguishing characteristics are its blue waters and white clouds. Enveloped by an ocean of air consisting of 78% nitrogen and 21% oxygen, the planet is the only one in our solar system known to harbor life. Circling the Sun at an average distance of 149 million kilometers (93 million miles), Earth is the third planet from...
Đọc tiếp

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.

   As viewed from space, Earth’s distinguishing characteristics are its blue waters and white clouds. Enveloped by an ocean of air consisting of 78% nitrogen and 21% oxygen, the planet is the only one in our solar system known to harbor life. Circling the Sun at an average distance of 149 million kilometers (93 million miles), Earth is the third planet from the Sun and the fifth largest planet in the solar system.

 

   Our planet’s rapid spin and molten nickel-iron core give rise to an extensive magnetic field which, coupled the atmosphere, shields us from nearly all of the harmful radiation coming from the Sun and other stars. Earth’s atmosphere protects us from meteors as well, most of which burn up in the Earth’s atmosphere before they can strike the surface. The planet active geological processes have left no evidence of the ancient pelting it almost certainly received soon after it formed about 4.6 billion years ago. The Earth has a single natural satellite – the moon.

QuestionThe main idea of this passage is that ________.

A. Earth is predominantly water.

B. There are life-supporting characteristics on Eart

C. Earth is the only planet with a moon

D. Earth has no common characteristics with other planets

2
7 tháng 10 2018

Đáp án B.

3 tháng 3 2022

B

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.   As viewed from space, Earth’s distinguishing characteristics are its blue waters and white clouds. Enveloped by an ocean of air consisting of 78% nitrogen and 21% oxygen, the planet is the only one in our solar system known to harbor life. Circling the Sun at an average distance of 149 million kilometers (93 million miles), Earth is the third planet from...
Đọc tiếp

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.

   As viewed from space, Earth’s distinguishing characteristics are its blue waters and white clouds. Enveloped by an ocean of air consisting of 78% nitrogen and 21% oxygen, the planet is the only one in our solar system known to harbor life. Circling the Sun at an average distance of 149 million kilometers (93 million miles), Earth is the third planet from the Sun and the fifth largest planet in the solar system.

 

   Our planet’s rapid spin and molten nickel-iron core give rise to an extensive magnetic field which, coupled the atmosphere, shields us from nearly all of the harmful radiation coming from the Sun and other stars. Earth’s atmosphere protects us from meteors as well, most of which burn up in the Earth’s atmosphere before they can strike the surface. The planet active geological processes have left no evidence of the ancient pelting it almost certainly received soon after it formed about 4.6 billion years ago. The Earth has a single natural satellite – the moon.

QuestionThe word distinguishing as it is used in this selection means ________.

A. elevating in nature

B. characteristics like all other planets

C. devastating in nature

D. characteristics that set it apart from other planets

2
29 tháng 6 2019

Đáp án D.

3 tháng 3 2022

D nhé bn

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.   As viewed from space, Earth’s distinguishing characteristics are its blue waters and white clouds. Enveloped by an ocean of air consisting of 78% nitrogen and 21% oxygen, the planet is the only one in our solar system known to harbor life. Circling the Sun at an average distance of 149 million kilometers (93 million miles), Earth is the third planet from...
Đọc tiếp

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.

   As viewed from space, Earth’s distinguishing characteristics are its blue waters and white clouds. Enveloped by an ocean of air consisting of 78% nitrogen and 21% oxygen, the planet is the only one in our solar system known to harbor life. Circling the Sun at an average distance of 149 million kilometers (93 million miles), Earth is the third planet from the Sun and the fifth largest planet in the solar system.

 

   Our planet’s rapid spin and molten nickel-iron core give rise to an extensive magnetic field which, coupled the atmosphere, shields us from nearly all of the harmful radiation coming from the Sun and other stars. Earth’s atmosphere protects us from meteors as well, most of which burn up in the Earth’s atmosphere before they can strike the surface. The planet active geological processes have left no evidence of the ancient pelting it almost certainly received soon after it formed about 4.6 billion years ago. The Earth has a single natural satellite – the moon.

QuestionIt’s probable that the next paragraph would discuss ________.

A. people on planets

B. the solar system as a whole

C. rings around Saturn

D. the Earth’s natural satellite – the moon

2
21 tháng 11 2018

Đáp án D.

3 tháng 3 2022

D

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.   As viewed from space, Earth’s distinguishing characteristics are its blue waters and white clouds. Enveloped by an ocean of air consisting of 78% nitrogen and 21% oxygen, the planet is the only one in our solar system known to harbor life. Circling the Sun at an average distance of 149 million kilometers (93 million miles), Earth is the third planet from...
Đọc tiếp

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.

   As viewed from space, Earth’s distinguishing characteristics are its blue waters and white clouds. Enveloped by an ocean of air consisting of 78% nitrogen and 21% oxygen, the planet is the only one in our solar system known to harbor life. Circling the Sun at an average distance of 149 million kilometers (93 million miles), Earth is the third planet from the Sun and the fifth largest planet in the solar system.

 

   Our planet’s rapid spin and molten nickel-iron core give rise to an extensive magnetic field which, coupled the atmosphere, shields us from nearly all of the harmful radiation coming from the Sun and other stars. Earth’s atmosphere protects us from meteors as well, most of which burn up in the Earth’s atmosphere before they can strike the surface. The planet active geological processes have left no evidence of the ancient pelting it almost certainly received soon after it formed about 4.6 billion years ago. The Earth has a single natural satellite – the moon.

QuestionThe word consisting most nearly means ________.

A. hardening

B. withholding

C. containing

D. shortening

2
12 tháng 3 2019

Đáp án C.

3 tháng 3 2022

C

Check True or False Energy is very important in modern life. People use energy to run machines, heat and cool their homes, cook, give light, transport people and products from place to place. Most energy nowadays comes from fossil fuels such as petroleum, coal and natural gas. However, burning fossil fuels causes pollution. Also, if we don’t find new kinds of energy, we will use up all the fossil fuels in the twenty –first century. Scientists are working to find other kinds of energy for the...
Đọc tiếp

Check True or False

Energy is very important in modern life. People use energy to run machines, heat and cool their homes, cook, give light, transport people and products from place to place. Most energy nowadays comes from fossil fuels such as petroleum, coal and natural gas. However, burning fossil fuels causes pollution. Also, if we don’t find new kinds of energy, we will use up all the fossil fuels in the twenty –first century. Scientists are working to find other kinds of energy for the future. What might these sources of energy be?

____ 29/ Energy is used to produce a lot of electrical things.

____ 30/ Energy comes from natural resources.

____ 31/ burning fossil fuels causes pollution.

____ 32/ Everyone tries their best to find other kinds of energy for the future.

(33-36) Rewrite the sentences so that they are nearest in meaning to the sentence printed before them.

33/Chi didn’t drink anything. She was very thirsty.

-->Although ____________________________________________________

34/ Don’t forget to buy me a newspaper.

->Remember ___________________________________________________

35/ I suggest that we should have a mechanic check our motorbike once a month.

--> I suggest _____________________________________________________

36/The film Titanic is on at Rex Cinema. Have you seen it?

--> Have you _____________________________________________________

1
9 tháng 1 2018

Check True or False

Energy is very important in modern life. People use energy to run machines, heat and cool their homes, cook, give light, transport people and products from place to place. Most energy nowadays comes from fossil fuels such as petroleum, coal and natural gas. However, burning fossil fuels causes pollution. Also, if we don’t find new kinds of energy, we will use up all the fossil fuels in the twenty –first century. Scientists are working to find other kinds of energy for the future. What might these sources of energy be?

__T__ 29/ Energy is used to produce a lot of electrical things.

__F__ 30/ Energy comes from natural resources.

_T___ 31/ burning fossil fuels causes pollution.

__T__ 32/ Everyone tries their best to find other kinds of energy for the future.

(33-36) Rewrite the sentences so that they are nearest in meaning to the sentence printed before them.

33/Chi didn’t drink anything. She was very thirsty.

-->Although ___Chi was very thirsty ,she didn’t drink anything__

34/ Don’t forget to buy me a newspaper.

->Remember ________ to buy me a newspaper._______

35/ I suggest that we should have a mechanic check our motorbike once a month.

--> I suggest _having a mechanic check our motorbike once a month

36/The film Titanic is on at Rex Cinema. Have you seen it?

--> Have you ________seen the film Titanic on at Rex Cinema____