1、七年级下学期Unit 6主题阅读(民治中学七年级)一、语法填空题。（共10小题，每小题1分） 阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。If we try to think of the most important inventions in the 20th century, I think electricity may 1._(is) the most important, in a way. It plays 2._ important part in the development（发展）of modern wor
2、ld. It can affect（影响）everyones life. When the electricity 3._(go) off, we call it a power cut. Can you imagine what 4._(we) life will be like 5._(with) electricity? Almost everything will stop. Electrical appliances（电器）cant work; traffic lights are dead; many workers must stop 6._(work), and so on.
3、Electricity is so 7._(importance), 8._ it is also limited（有限的）. 9._should we do? At least（至少）, we 10. _(must) waste electricity.二、完形填空。(共15分，每小题1.5分)阅读下面短文，从短文后每小题的四个选项中选出能填入相应空白处的最佳选项。（共10小题，每小题1.5分）Electricity is becoming more and more important. It _1_ our life every day. Without it, we can _2_ l
4、ive. Do you know who discovered electricity? Yes, he is Benjamin Franklin. When he _3_ a kite in the storm, something from the _4_ gave him a fright（惊吓). What could it be? It was _5_! Why is electricity becoming so _6_ in our life? Its because people _7_ many different electrical appliances（电器）in al
5、most all _8_, such as washing machines, light bulbs, _9_, air conditioners, printers, televisions and so on. Although electricity is very important, it is very dangerous. So when use electricity we should be _. ( ) 11. A. forms B. changes C. adds ( ) 12. A. hardly B. always C. sometimes ( ) 13. A. c
6、onnected B. flew C. carried ( ) 14. A. sky B. kite C. wire ( ) 15. A. light B. electricity C. power ( )16. A. expensive B. possible C. important ( ) 17. A. use B. take C.buy ( )18. A. places B. schools C. houses ( ) 19. A. computers B. reservoirs C. pipes ( ) 20. A. safe B. careful C.nervous 三、 阅读理解
7、。 (30分，每小题1.5分)APDAs are very useful. They are like small computers. You can put a lot of information into them. For example, you can put in the telephone and e-mail addresses. Many people use PDAs to remember important dates. Some of these super machines can even send and receive e-mails. PDAs are
8、small and convenient. A few years ago, they were expensive. Now, they are cheap. Many people use them at work and at school. People can carry PDAs in their pockets. But, its important to be careful. These little machines are easy to lose（丢失）. People put such important information into their PDAs. It
9、s really terrible to lose them.1. Whats the main idea of the passage?A. PDAs are like small computers.B. You can do many things with a PDA.C. PDAs are cheap.D. Too many people use PDAs.2. A PDA can not _.A. Send e-mailsB. remember informationC. talk to youD. do some things like a computer3. What do
10、we learn about PDAs?A. Students dont like to use them.B. All of them can send and receive e-mails.C. They are very large.D. They arent very expensive.4. Losing a PDA is a _ experience（经历）.A. greatB. fineC. strangeD. bad5. What kind of person would not use a PDA?A. Someone who hates computers.B. A st
11、udent.C. A person with a busy timetable.D. A business person. BElectricity is all around us. Its in the computer you are using. Its in the ground under your feet, and its in your body. And you cant live without electricity. Without electricity, you wouldnt be reading this article right now. And its
12、not because its not bright enough without electricity. Its because your brain wouldnt work. Every move your body makes needs the help of electricity. The nervous system（神经系统）sends electrical signals（信号） to your brain first, and then your brain sends them to your body. These signals dont flow along a
13、 wire. They jump from one cell（细胞）to the next until they get to their final place. With so much electricity jumping around, it may seem like the body is a great power station. You may wonder if you have enough power to turn on TV. Well, your body can just create little electricity. So stop dreaming.
14、 6. What is the article mainly about?A. Electricity in our lives.B. Electricity in the ground.C. Electricity in our bodies.D. Electricity around us.7. Why cant we read the article without electricity?A. Because its dark.B. Because the words are not clear.C. Because we cant see it.D. Because our brai
15、n dont work.8. What sends electrical signals to our brains when we move?A. The nervous system.B. The bones.C. The body.D. The cells.9. What can we learn about our bodies from the last paragraph?A. There are wires in them.B. Electricity flows slowly in them.C. They are like power station.D. They have
16、 the power to turn on TV.10. Where can you find this article most probably?A. In a comic book.B. In a science book.C. In a storybook.D. In a guide book. CWhen you watch TV and play video games you make global warming（全球变暖） worse! To make electricity, fossil fuels（矿物燃料） are burned in big factories. B
17、ut burning fossil fuels also makes greenhouse gases. This means that every time you use electricity you help make global warming worse! Cars are also making global warming worse. They burn fossil fuels in their engines, and send lots of greenhouse gases into the air. So what can we do to stop global
18、 warming? Try to use less electricity. First, turn off lights, your television, and your computer when you stop using them. You could also try to watch less TV. But you may find that hard to do! Second, plant trees. Not only is it a fun thing to do, but it is also a great way to lower the number of
19、greenhouse gases in the air. Trees take carbon dioxide（二氧化碳） out of the air when they grow. Last, dont throw away your rubbish, but try to recycle it. Because if rubbish is not recycled, itrots(腐烂) and makes a greenhouse gas calledmethane(甲烷).So try to recycle cans, bottles, plastic bags and newspap
20、ers. Itll make you feel great! And itll help the Earth. ( )11. What do people burn to make electricity in big factories? A. Minerals. B. Rubbish. C. Fossil fuels. D.Oil. ( )12. Why do cars also make global warming worse?A. Because people throw rubbish on the ground from cars.B. Because they burn fos
21、sil fuels in their engines and produce green gases.C. Because people burn cars when they are broken.D. Because people use air conditioners（空调）on their cars.( )13. How many advices（建议）does the writer give for stopping global warming?A. Two B. Three C. Four D. Five.( )14. Which of the following is not
22、 true?A. Less cars can help reduce（减少）global warming.B. It is hard to give up watching TV.C. Planting trees is helpful but boring.D. Rotted（腐烂的）rubbish produces a kind of greenhouse gas.( )15. Where does this passage come from probably?A. A travel guide.B. A sports magazine.C. A textbook.D. An envir
23、onmental（环境的）magazine.D Angelo Casimiro is a 16-year-old boy. He has made something new. Casimiro made a device（装置）. It can charge （给充电）your cell phone as you walk! When you run, jump or walk, a pair of discs（光盘）inside the shoes can produce electricity. It can be used to charge your phone or any oth
24、er devices with a USB port! People have to move a lot if they use the device to charge. Those who like travelling in the wild will love it. It takes about eight hours running to charge a lithium-ion（锂离子）battery and two hours paying basketball will only give the cell phone about 10 minutes charge. A
25、device called Solepower is a kind of insole（鞋垫）that can proelectricity. Solepower is like Casimiros device, but it can fully charge a cell phone over a four-kilometer walk. So theres a lot for Casimiro to do to make his inventions（发明） better. Anyway, Casimiros device is quite good. After all, his in
26、vention started something new, right? 16. In Casimiros deveice, _ can produce electricity when people walk. A. a pair of disc B. a pair of socks C. the shoes top D. the shoes heel17. Which of the following will probably need the device most? A. Secretaries（秘书）. B. Travellers. C. Businessmen. D. Engi
27、neers.18. It will take them _ to charge a lithium-ion battery if people use the device. A. wight hours running B. two hours playing basketball C. four hours running D. eight hours walk19. What can Casimiro do to make his invention better according to the writer? A. Make the discs smaller. B. Make it charge more quickly. C. Make the shoes lighter. D. Make the shoes more comfortable.20. What does the writer think of Casimiros invention? A. Boring. B. Bad. C. Great. D. perfect.
