Energy is very important in modern life. Peop...

Energy is very important in modern life. People use energy to run machines, heat and cool their homes, cook, get light, and transport people and products from place to place. Most energy comes from fossil（化石）fuels--petroleum, coal and natural gas. However, burning fossil fuels cause 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 hard to find other kinds of energy for the future. What might these sources of energy be?

Energy from the wind

All over the world, people use the power of the wind. It turns windmills and moves sail-boats. It is a clean source of energy, and there is lots of it. Unfortunately, if the wind does not blow, there is no wind energy.

Energy from water

When water moves from a high place to a lower place, it makes energy. This energy is used to create electricity. In Brittany, France, for example, waterpower produces enough energy to light a town of 40000 people. Waterpower gives energy without pollution. However, people have to build dams to use this energy. Dams cost a lot of money, so water energy is expensive.

Energy from the earth

There is heat in rocks under the earth. Scientists use this heat to make geothermal energy. San Francisco gets half of the energy it needs from geothermal power. This kind of energy is cheap, but it is possible only in a few places in the world.

Energy from the sun

Solar panels on the roofs of houses can turn energy from the sun into electricity. These panels can create enough energy to heat an entire house. Solar power is clean and there is a lot of it in sunny places. But when the weather is bad, there is no sunlight for energy.

1.What does this passage mainly talk about?

A. Advantages of the energy from nature.

B. The future of energy.

C. Scientists have been working hard to research other kinds of energy.

D. Energy is the most important power in the world.

2.From the first paragraph, we know ________.

A. energy can do everything for people

B. all the energy causes pollution

C. the new kinds of energy are badly needed

D. scientists have found other kinds of energy for future

3.What is the writer's opinion about the energy?

A. Try to use water energy more though it costs a lot.

B. Each natural energy has its own advantages and disadvantages.

C. Solar power is environmental.

D. Wind power is the cheapest but we can't get enough.

4.The writer suggests in the passage that ________.

A. in the 21st century fossil fuels may be used up

B. the new sources of energy will change in the next twenty years

C. if we dig deep enough, in the earth, we find geothermal energy everywhere

D. French and American are more interested in water and heat energy

5.What can be inferred（推断）from the passage?

A. In order to protect our environment, we should try other kinds of energy.

B. All scientists in the world will unite to find energy.

C. People in modern life use energy every day.

D. Energy changes people's lives.

九年级英语阅读单选困难题查看答案及解析

In modern society, people use money every day. It seems that it is very important in our life. That’s because without money you can’t buy any goods(商品) you want. But I think few people know the history of money.

Long ago, people did not need money. They lived on wild animals, fruits and other plants. As time passed, people learned to raise animals and crops. Sometimes, families produced more than they needed, so they started to trade with other families. Later, people began to use money as a means of exchange. However, it was not the kind of money we use today. They used shells（贝壳）, rice, salt, large stones, etc.

During the 600s BC, people began using coins as money. They soon found that coins were easier to carry than goods and lasted a long time. Later, countries began to make their own coins.

The Chinese were the first to use paper money, probably as early as the 11th century. The Italian traveler Marco Polo saw the Chinese using money when he　 visited China in the 1200s. However, European countries did not start using paper money until 1600s.

Today, we have many ways to pay for things. We can pay in cash or pay for things by card. Often, people prefer to pay by a smart-phone. Paying by a smart-phone is easier and safer than carrying around a lot of “real” money.

1.Why is money very important in our life?

____________________________________________

2.What did people depend on when they didn’t need money?

____________________________________________

3.Had people begun using coins as money since the 600s BC?

____________________________________________

4.When did European countries start using paper money?

____________________________________________

5.How can people pay for things today?

____________________________________________

九年级英语回答问题中等难度题查看答案及解析

In modern society, people use money every day. It seems that it is very important in our life. That’s because without money you can’t buy any goods(商品) you want. But I think few people know the history of money.

Long ago, people did not need money. They lived on wild animals, fruits and other plants. As time passed, people learned to raise animals and crops. Sometimes, families produced more than they needed, so they started to trade with other families. Later, people began to use money as a means of exchange. However, it was not the kind of money we use today. They used shells, rice, salt, large stones, etc.

During the 600s BC, people began using coins as money. They soon found that coins were easier to carry than goods and lasted a long time. Later, countries began to make their own coins.

The Chinese were the first to use paper money, probably as early as the 11th century. The Italian traveler Marco Polo saw the Chinese using money when he visited China in the 1200s. However, European countries did not start using paper money until 1600s.

Today, we have many ways to pay for things. We do not use coins or paper money. Often, people prefer to pay for things by card. Paying with a card is easier and safer than carrying around a lot of “real” money.

1.　 People used ________ as a means of exchange before the 7th century BC.

A. paper money　　　　 B. card　　　　　　　

C. large stone　　　　　　 D. coins

2.From the passage, we know that European countries used paper money in the ________.

A. 11th century　　　　　 B. 12th century　　　

C. 16th century　　　　　 D. 17th century

3.Which of the following is TRUE in this article?

A. Marco Polo was from Canada.

B. Chinese used paper money earlier than Italy.

C. Today people often prefer to pay for things by salt.

D. Carrying around much “real” money is easier and safer than Paying with a card.

九年级英语阅读理解极难题查看答案及解析

Computers are very important  to modern life. Many people think that in the future computers will be used in lots of everyday life. It is thought that we won’t have to go shopping because we will be able to get most things which are sold in shops on the Internet. There will be no more books because we will be able to get all texts from computers. The Internet will be used to play games, see films and buy food. Most telephone calls will be made by computers, too.

Some people are glad about these new ways of shopping and communicating. Others do not think that computers will replace our old ways.

Let’s look at books, for example. Some people think that one day we will not read books made of paper. Instead, we will buy and read books using computers. We will read texts on small pocket computers. The computers will keep many different books in them at the same time. We won’t need to turn lots of pages and paper will be saved. Computerized(计算机化) books will be used more and more.

Is Internet shopping such a pleasure as going to the shop? Many people say it is not. It is a pleasure to go in to shops and look at things you want to buy. It is also unlikely that many people will want to read large texts on our computers. Because paper books will perhaps be more friendly. Maybe computers won’t change these two habits.

1.In paragraph1 it is thought people will use computers for _______.

A. playing games, shopping and making telephone calls

B. making telephone calls, having meals and seeing films

C. seeing films, buying food, and going for holidays

D. playing games, making telephone calls and seeing the doctor

2.Paragraph 4 tells _______.

A. about the old and new ways of shopping and communicat ing

B. if the Internet will change our habits

C. about computerized books

D. about future uses of computers

3.The title for this passage is _______.

A. Computers will Replace Shops and Books.

B. Computers will be Used in the Future.

C. Computers will Do Everything for Man.

D. How Computers Change Our Habits

4.According to the writer’s view, which is right?

A. Computers will replace everything completely in our daily life in the future.

B. Computers will not be used at all in our daily life in the future.

C. Computers will not be used in shopping in the future.

D. Computers will bring more and wider usage  in our daily life in the future.

九年级英语阅读理解中等难度题查看答案及解析

We are now living in the modern society. Most of the energy we use for heating, lighting, transportation and manufacturing (制造业) comes from fossil (化石) fuels. These are carbon-based fuels from oil, coal and natural gas. When we burn these fuels we release heat which p__1.___ the energy.

There are three main disadvantages to using these fuels. Firstly, they are causing climate problems because of the G_2.___ Effect. When we burn fossil fuels they produce carbon dioxide which causes global warming. Secondly, when we have used up all our coal, oil and natural gas, we will have n__3.__ left to burn. Thirdly, they are not very efficient. The internal combustion engine (内燃机) that we use in most cars, trucks and buses, for example, is only about 14% efficient.

Scientists are working on another fuel—hydrogen. There are a couple of advantages to using hydrogen as a fuel. Firstly, because two-thirds of the e__4.__ surface is water and water is made of hydrogen and oxygen. There is an almost unlimited supply of hydrogen. Secondly, burning hydrogen does not cause global warming. Thirdly, it is much more efficient than carbon-based fuels.

Unfortunately there are problems with hydrogen at the present time: there is the problem of separating (分离) it from water c_5.___, and there is the difficulty of storing it. It can be stored under pressure but high pressure tanks are far from safe. It can also be stored as a liquid but only at extremely low temperatures. It seems likely, therefore, that there will have to be a completely new technology before hydrogen replaces fossil fuels. S__6.___ these problems is an urgent (急迫的) matter. Although China, India and Australia have huge amounts of cheap coal, and there are still l__7.___ oil and gas reserves(储藏量) elsewhere, the effects on the planet’s climate will be bad if they are used.

九年级英语其他题极难题查看答案及解析

Have you ever heard of “a ball of energy”? People often use it to describe very active children. But today we tell about the soccket, something that is a real soccer ball of energy. Julia Silverman and Jessica Matthews developed the soccket as part of a group project for an engineering class at Harvard University.

There are mechanisms (装置) in a soccket. When you kick, hit or throw it, energy is then kept in it by these mechanisms instead of disappearing into the environment. Then the user can put something directly into the ball, like a lamp, or a mobile phone charger so that they can get energy from it. For every fifteen minutes of the game play, the soccket can provide enough electricity for an LED lamp for three hours, and the ball can store (储藏) up to 24 hour’ electricity.

The International Energy Association reported last year that nearly one and a half billion people in the world had no electricity to use, and most of them live in sub-Saharan Africa and in India and other countries in Asia.

Julia Silverman and Jessica Matthews both had experiences in developing countries before they began the project. They knew that power shortages are a serious problem in really areas. There’s an energy crisis in the world. One out of every five people in the world don’t have any electricity. And besides that, there are a lot of health problems because without electricity, people have to use something like kerosene (煤油) lamps, which produce a lot of smoke.

Julia Silverman says the soccket ball is one small solution to a big problem. Jessica Matthews and Julia Silverman hope their soccket ball will shine more light on the problem of power shortages. It offers people a chance to put their energy into the world’s most popular sport and get some energy in return.

1.From the passage, we know the soccket is _____.

A. a game B. an invention C. an energy D. a lamp

2.If you play the soccket for half an hour, it can provide an LED lamp with electricity for _____.

A. fifteen minutes B. half an hour C. six hours D. three hours

3.The underlined word “crisis” in the passage means _____.

A. a time of safety B. a time of difficulty C. a time of success D. a time of illness

4.We can infer (推断) from the passage that _____.

A. Julia Silverman has never been to developing countries before

B. people all over the world will use the sOccket soon

C. kicking a soccket makes the energy disappear into the environment

D. people are expected to get some energy by playing soccket

5.The best title for the passage should be “________”.

A. How to Make Electricity B. How to Deal With Energy Crisis

C. A Soccer Ball That Gives Energy D. An Energy Shortage in the World

九年级英语阅读单选中等难度题查看答案及解析

Have you ever heard of "a ball of energy"? People often use it to describe very active children. But today we tell about an invention called the soccket, that is a real soccer ball of energy. Julia Silverman explains that in fact the soccket is a portable generator (便携式发电机).

Julin Silverman and Jessica Matthews developed the soccket as part of a group project for an engineering class at Harvard University.

There are mechanisms (装置) in a soccket. When you kick, hit or throw it, energy is then kept in it by these mechanisms instead of disappearing into the environment.

Then the user can put something directly into the ball, like a lamp, or a mobile phone charger (充电器)  so that they can get energy from it.

For every fifteen minutes of the game play, the soccket can provide enough electricity(电) for an LED lamp for three hours, and the ball can store(储藏) up to 24 hours' electricity.

The International Energy Association reported last year that nearly one and a half billion people in the world had no electricity to use, and most of them live in Africa, India and other countries in Asia.

Julia Silverman and Jessica Matthews both had experiences in developing countries before they began the project. They knew that power shortages are a serious problem in really areas.

There's an energy crisis in the world. One out of every five people in the world don't have any electricity. And besides that, there are a lot of health problems because what people use instead of the electricity are harmful choices like kerosene(煤油) lamps, which produce a lot of smoke.

Julia Silverman says the soccket ball is one small solution to a big problem.

Jessica Matthews and Julia Silverman hope their soccket ball will shine more light on the problem of power shortages. It offers people a chance to put their energy into the world's most popular sport and get some energy in return.

1.From the passage, we know the soccket is ____________.

A.an active child

B.an invention

C.a lamp

D.a mobile phone

2.The underlined word "crisis" in the passage means ____________.

A.a time of safety

B.a time of difficulty

C.a time of success

D.a time of pride

3.We can infer(推断) from the passage that ____________.

A.Julia Silverman has never been to developing countries before

B.Active children like to play soccket

C.kicking a soccket can let the energy disappear into the environment

D.people are expected to get some energy by playing soccket

4.The best title for the passage should be "____________".

A.The only way to produce electricity

B.The best way to solve energy crisis

C.A soccer ball that gives energy

D.An invention changing the world

九年级英语阅读单选中等难度题查看答案及解析

Have you ever heard of “a ball of energy”? People often use it to describe very active children. But today we tell about an invention called the socket, that is a real soccer ball of energy. Julia Silverman explains that in fact the socket is a portable generator.

Julia Silverman and Jessica Matthews developed the socket as part of a group project for an engineering class at Harvard University. There are mechanisms in a socket. When you kick, hit or throw it, energy is then kept in it by these mechanisms instead of disappearing into the environment.

Then the user can put something directly into the ball, like a lamp, or a mobile phone charger so that they can get energy from it. For every fifteen minutes of the game play, the socket can provide enough electricity for an LED lamp for three hours, and the ball can store up to 24 hours’ electricity.

The International Energy Association reported last year that nearly one and a half billion people in the world had no electricity to use, and most of them live in sub-Saharan Africa and in India and other countries in Asia.

Julia Silverman and Jessica Matthews both had experiences in developing countries before they began the project. They knew that power shortages are a serious problem in really areas. There’s an energy crisis in the world. One out of every five people in the world don't have any electricity, there are a lot of health problems because what people use instead of any electricity are harmful choices like kerosene lamps, which produce a lot of smoke.

Julia Silverman says the socket ball is one small solution to a big problem. Jessica Matthews and Julia Silverman hope their socket ball will shine more light on the problem of power shortages. It offers people a chance to put their energy into the world’s most popular sport and get some energy in return.

1.From the passage, we know the socket is__________.

A.an active child B.an invention C.a lamp D.a mobile phone

2.The underlined word “crisis” in the passage means a time of__________.

A.difficulty B.safety C.success D.sadness

3.We can infer from the passage that__________.

A.active children care more about playing socket

B.people are expected to get some energy by playing socket

C.Julia Silverman has never been to developing countries before

D.kicking a socket can let the energy disappear into the environment

4.The best title for the passage should be__________.

A.A soccer ball that gives energy B.The way to help save electricity

C.The best way to solve energy problems D.An invention changing the world

九年级英语阅读单选简单题查看答案及解析

Have you ever heard of ＂a ball of energy＂? People often use it to describe very active children. But today we tell about an invention called the soccket, that is a real soccer ball of energy. Julia Silverman explains that in fact the soccket is a portable generator(便携式发电机).

Julia Silverman and Jessica Matthews developed the soccket as part of a group project for an engineering class at Harvard University.

There are mechanisms(装置) in a soccket. When you kick, hit or throw it, energy is then kept in it by these mechanisms instead of disappearing into the environment.

Then the user can put something directly into the ball, like a lamp, or a mobile phone charger so that they can get energy from it.

For every fifteen minutes of the game play, the soccket can provide enough electricity(电) for an LED lamp for three hours, and the ball can store(储藏) up to 24 hours’ electricity.

The International Energy Association reported last year that nearly one and a half billion people in the world had no electricity to use, and most of them live in sub-Saharan Africa and in India and other countries in Asia.

Julia Silverman and Jessica Matthews both had experiences in developing countries before they began the project. They knew that power shortages are a serious problem in really areas.

There’s an energy crisis in the world. One out of every five people in the world don’t have any electricity. And besides that, there are a lot of health problems because what people use instead of the electricity are harmful choices like kerosene(煤油) lamps, which produce a lot of smoke.

Julia Silverman says the soccket ball is one small solution(解决方法) to a big problem.

Jessica Matthews and Julia Silverman hope their soccket ball will shine more light on the problem of power shortages. It offers people a chance to put their energy into the world’s most popular sport and get some energy in return.

1.From the passage, we know the soccket is ________.

A. an active child B. an invention C. a lamp D. a mobile phone

2.If you play the soccket for half an hour, it can provide an LED lamp with electricity for ________.

A. fifteen minutes B. half an hour C. six hours D. three hours

3.The underlined word ＂crisis＂ in the passage means ________.

A. a time of safety B. a time of difficulty C. a time of success D. a time of pride

4.We can infer(推断) from the passage that ________.

A. Julia Silverman has never been to developing countries before

B. Active children like to play soccket

C. kicking a soccket can let the energy disappear into the environment

D. people are expected to get some energy by playing soccket

5.The best title for the passage should be ＂________＂.

A. The only way to produce electricity B. The best way to solve energy crisis

C. A soccer ball that gives energy D. An invention changing the world

九年级英语阅读单选困难题查看答案及解析

New Energy in the Twenty-first Century Energy from the wind.

All over the world, people use the power of the wind. It is a clean source of energy, and there is lots of it. But if the wind does not blow, there is no wind energy.

Energy from the water

When water moves from a high place to a lower place it has the power to make electricity. In Britain, waterpower produces enough energy to power a town with 40000 people. Waterpower gives energy without pollution, but people have to build dams(大坝) to use this kind of power, and building dams is very expensive.

Energy from the earth

There is heat in the rocks under the earth. Scientists use the heat to make geothermal(地热的) San Francisco gets half of the energy it needs from geothermal power. This kind of energy is cheap, but it is only possible in a few places in the world.

Energy from the sun

Solar panels(镶板) on the roofs of houses and buildings can turn energy from the sun into electricity. These panels can create enough energy to heat the whole house during winter. Solar power is clean and plentiful, but when the weather is bad, it can’t produce power.

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九年级英语阅读理解中等难度题查看答案及解析