S13-Coco魔法英语U21随堂练习+真题易错

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随堂练习
单项选择
1. He fell off the bike _____, he broke one of his legs.
2. Bill is ill and the doctor says his illness is the _____ of eating unhealthy food.
3. Don't _____ the blender _____ too much yogurt.
4. Let's _____ these bottles into different boxes for different use.
5.一Tony, playing computer games too much may _____ poor eyesight.
   一Thanks for your reminding, Peter.
阅读理解

   When a computer runs a group of programs, it can get very hot. Cooling the computer can cost a lot, so some scientists want to know one thing: What would happen if they use the heat(热量) from the computer?

  Large Internet companies such as Google and Microsoft have thousands of computers. As people use these computers to look through information, they produce lots of heat, so they need huge cooling systems(系统).

  These systems send the heat into the air. A company in Holland(荷兰) thought paying to make the computers work and then paying again to cool them were a waste of energy. So the company developed a special machine-the e-Radiator.Boaz Leupe, head of the company, says that the e-Radiator works as a heating system and saves money. He says that the energy is used twice-once to heat the home and once to cool the computer. He also says that users don't have to pay to cool their computers. Five homeowners(房主) in Holland are testing the heating system in their homes. "We pay for using the computer, so, in that way, homeowners get heat for free," Boaz says. Jan Visser is one of the homeowners. "lf you use the computer more, the e-Radiator produces more heat," he says. "It cannot provide enough heat if you don't use your computer often." But he is ready to try it. It's a great help for his family.

  The company says e-Radiators produce heat of up to 55C. lt says the system could save its users about 440 a year. That's really wonderful, right?
1. Why did the writer write the first paragraph?
2.What does the underlined word "they" refer to?
3. What's the main idea of Paragraph 3?
4. Which of the following is NOT true according to the passage?
5.What is the best title of the passage?
真题易错
1. He was late ____ the heavy snow.
2. After the Spring Festival, the Housing Estate Center ____ buyers and sellers.
3.一Remember to use _____ chopsticks for meat, vegetables and salads.
   一OK, I won't make them a mixture in a mess.
4.一____ do you usually deal ____ your old books?
   一 I often give them to the children in poor areas.
5.一 There was a big fire in the neighborhood yesterday.
   一Yes, it has been put out. But the _____ of the fire is still unknown.
17. 完成句子(根据提示填写单词，每空一词)

1. Mrs. Green looked ____ because she didn't catch the early bus. (worry)

2.请填写这张表格。
Please ____  in the form.

3.缺乏睡眠可能导致精神和身体方面的健康问题。
_____  _____ sleep may result  _____mental and physical health problems.
本单元单词默写
18. Words for readings
v.引起/n.起因；原因___
v.贮存；储藏/n.商店___
adj.担忧的___
n.癌症___
n.不悦；不满意___
n.物质；材料___
adj.可耻的___
n.政府___
v.扩散；蔓延；展开；张开/n.传播；散步___  
处理（词组）___

Words in use
v.(因......)发生/n.后果；结果(直接)___
v.装满___
v.分离；(使)分开/adj.单独的；独立的___
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