The Great Wall is one of the most famous wondersa11over the world．题目和参考答案——青夏教育精英家教网—

题目内容

7．The Great Wall is one of the most famous wonders（奇迹）a11over the world．

分析长城是世界上最著名的奇迹之一．

解答答案：wonders．结合one of+最高级+名词复数表示最怎样的…之一，奇迹用wonder，故答案是wonders．

点评 one of+形容词最高级+名词复数，"…中最…之一"，其中的名词可以指人也可以指物，前面由形容词的最高级修饰作定语．如：
I think the dog is one of the cleverest animals in the world．
我认为狗是世界上最聪明的动物之一．

练习册系列答案

5．A computer can get very hot when it works on a lot of programs．It can cost a lot to cool the computer．So some scientists want to know what would happen if the heat from the computer could be used．
Large Internet companies such as Google and Microsoft have thousands of computers．As these computers deal with information，they produce lots of heat，so they need huge cooling systems．These systems send the heat into the air．
A company in Holland （荷兰） thinks paying to make the computers work and then paying again to cool them are a waste of energy．So the company developed a special device-the e-Radiator．
Boaz Leupe，head of the company，says that e-Radiator works as a heating system and saves money．He explains that the energy is used twice-once to heat the home and once to cool the computer and that the users don't have to pay to cool their computers．
Five homeowners in Holland are testing the heating system in their homes．
"We pay for the computer using，so，in that way，homeowners get heating for free．"Boaz says．
Jan Visser is one of the homeowners．"If you use the computer more，the e-Radiator producers 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 temperatures of up to 55℃．It says the system could save its users about $440a year．
41．Before the e-Radiator appears，usually the heat of a computerA．
A．is sent into the airB．helps the five homeowners
C．is used twiceD．makes the computer work better
42．The e-radiator is mainly usedB．
A．to help Microsoft
B．to provide heat
C．to heat the computer
D．to drive the computer
43．The Chinese meaning of the word"device"in this passage is probably"D"．
A．节能
B．实验
C．开关
D．仪器
44．How much could the system save its users a month？C
A．About 20dollars．
B．About 440dollars．
C．About 36yuan．
D．About 36dollars．
45．The best title of the passage may be"C"．
A．An Environment Problem
B．The Future Computers
C．A New Way to Heat Home
D．The Energy to Be Wasted．

15．Scientists say there are seven kinds of food that people should eat every day．They are：（1）green and yellow vegetables of all kind；（2）citrus（柑橘类）fruits and tomatoes；（3）potatoes and other fruits and vegetables；（4）meat of all kinds，fish and eggs；（5）milk and foods made of milk，like cheese and ice-cream；（6）bread or cereal（谷类），rice is also in this kind of foods；（7）butter，or something like butter，with fat．
People in different countries in the world eat different kinds of things．They also eat in different kinds a day．In some place people eat once or twice a day； in other countries，people eat three or four times a day．Scientists say that these differences are not important．It doesn't matter if a person eats dinner at 4o'clock in the afternoon or at eleven o'clock at night．The important thing is that every day a person must eat something from each of the seven kind of food．The most important thing is that we must find some ways to help the hungry people and make the people have right kinds of food，make them strong and healthy
61．According to the passage，beef belongs to theA kind of food that we should eat every day？
A．fourth
B．fifth
C．seventh
62．Which sentence is right？B
A．People should eat ice-cream every day
B．Oranges belong to the second kind of food
C．We must eat three or four times a day．
63．In different countries peopleC．
A．eat the same kinds of food
B．cook their food in the same way
C．eat different kinds of food
64．It is important that people shouldC．
A．eat at dinner at 4o'clock
B．eat cooked food
C．eat something from each of the seven kinds of food every day
65．The writer thinks we shouldA
A．help hungry people
B．eat lots of food
C．find ways to let people eat the same kinds of things．

2．

world dirty from angry little cause fight but keep even

Life today is much easier than it was hundreds of years ago，but it has brought new problems．One of the biggest problems is pollution．To pollute means to make things （1 ）dirty．Pollution comes in many forms．We see it，smell it，drink it and（2）even hear it．
Man is now slowly polluting the whole（3 ）world．
Air pollution is still the most serious．It's bad for all living things in the world，（4 ）but it is not the only kind of pollution．Water pollution kills our fish and pollutes our drinking water．Noise pollution makes us（5）angry more easily．
Many countries are making rules to（6 ）fight pollution．They stop people（7 ）from burning coal in houses and factories in the city，and from putting dirty smoke into the air．Pollution by SO2is now the most dangerous kind of air pollution．It is（8）caused by heavy traffic．We are sure that if there are fewer people driving，there will be（9）less air pollution．
The earth is our home．We must take care of it．That means（10）keeping the land，water and air clean．And we must take care of the rise in pollution at the same time．

12．Hurry up!Everyone ______ for you．（　　）

19．

Have you ever heard of e-waste （electric waste），which can be produced every day？How do you deal with your computers，MP4players and mobile phones when they're broken or you want a new one？
Most people just throw them away．With the development of electric industry，e-waste pollution has become a serious problem．According to the United Nations，in 2014，people around the world produced 41.8million tons of e-waste and only recycled 6.5million tons．The US was the biggest waster，producing 7.1million tons．China came second，with 6million tons．
It's important to pay attention to e-waste．It can either be valuable or harmful，depending on how we deal with it．E-waste is a valuable urban mine（城市矿藏）．The value of the metals，like gold and silver in the waste around the world，is amazing．And the metals can be reused．But if people throw them away，the harmful chemicals can get into the earth or air，polluting the environment around us and affecting people's health．
Apple，for example，now recycle people's used products in China when they are buying new ones．The company will test and repair the used ones and sell them at lower prices．To help reduce e-waste，we can also take computers and phones to see if companies offer recycling programs．
49．Which of the following can become e-waste？A
A．Computers．
B．Vegetables．
C．Clothes．
D．Plastic bags．
50．According to the passage，how much e-waste did China produce in 2014？D
A.41.8million tons．
B.6.5million tons．
C.7.1million tons．
D.6million tons．
51．If you buy a new mobile phone，what shouldn't you do with the old one？A
A．Throw it away immediately．
B．Repair the old one．
C．Sell it at a lower price．
D．Take it to a recycling company．

16．It's very cold outside．You should ______ your coat．（　　）

17．-Could you tell me how to learn new words？
-______listening to tapes and repeating aloud．（　　）

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