Unit 13 We're trying to save the earth! 单元练习（含答案）

Unit 13 单元练习
[时间:30分钟　满分:60分]
Ⅰ.单项选择(共10小题;每小题1分,满分10分)
(　　)1.—Do you believe that paper is made 　　　　wood
—Yes, I do. And you can see that books are made 　　　　paper.
A. from; from B.from; of
C.of; from D.of; of
(　　)2.There 　　　　a number of women teachers in our school. The number of them 　　　　
fifty.
A.are; are B.is; is
C.are; is D.is; are
(　　)3.The handbag is very expensive. I don't have enough money, so I can't 　　　　it.
A.provide B.offer
C.afford D.remind
(　　)4.My grandfather likes the small village very much. So far he 　　　　there for 50 years.
A.had lived B.lived
C.lives D.has lived
(　　)5.If I have enough money, I 　　　　a school bus to help the poor children go to school.
A.buy B.bought
C.will buy D.have bought
(　　)6.—Alice, would you mind not playing the guitar I 　　　　on the phone.
—Oh, sorry, Mom.
A.talked B.talk
C.was talking D.am talking
(　　)7.His car 　　　　five years ago, but it looks quite new.
A.buys B.bought
C.is bought D.was bought
(　　)8.—Where is the School English Speech Contest going to be held tonight
—I'm not sure. Is it in the hall 　　　　can hold 500 people
A. where B.what C.that D.when
(　　)9.I could speak 　　　　French 　　　　Chinese, but luckily I could talk with them in English.
A.both; and B.neither; nor
C.either; or D.not only; but also
(　　)10.Dick 　　　　in America, but he has been 　　　　Chinese food since he moved to China.
A. used to live; used to eating
B.is used to live; used to eat
C.is used to live; used to eating
D.used to living; used to eat
Ⅱ. 完形填空(共10小题;每小题2分,满分20分)
Going green is easier than you think. There are little things you can do every day to help reduce greenhouse gases and make a less 　11　 impact(影响) on the environment. Here are things you can do to help save the earth.
※Pay attention to how you use water. The little things can make a big difference. Every time you 　12　 the water while you're brushing your teeth, you're doing something good. Try drinking tap water(自来水) 　13　 bottled water, so you aren't wasting the bottles either. Wash your clothes in cold water when you can.
※Leave your 　14　 at home. If you can stay off the road just two days a week, you'll reduce greenhouse gas emissions(排放) by an average of 1,590 pounds per year. You can go to the post office, supermarket and shoe repair place in one trip. It will 　15　 your gas and time.
※Walk or ride your bike to work, school and 　16　 you can. You can reduce greenhouse gases while burning some calories and 　17　 your health.
※Recycle. You can help reduce 　18　 just by putting the soda can in a different bin. If you're trying to choose between two 　19　, pick the one with the less packaging(包装).
※Drive in a smart way. Slow down—driving 60 miles(96 kilometers) per hour instead of 70 mph on the highway will 　20　 save you up to 4 miles (6 kilometers) per gallon(加仑).
Taking care of the earth is not just a responsibility—it's a privilege(荣幸).
(　　)11.A.harmful B.meaningful C.helpful D.thankful
(　　)12.A.turn down B.turn over C.turn off D.turn on
(　　)13.A.except for B.except C.instead D.instead of
(　　)14.A.key B.car C.work D.bike
(　　)15.A.waste B.save C.get D.burn
(　　)16.A.anywhere B.nobody C.everything D.someone
(　　)17.A.enjoying B.changing C.reflecting D.improving
(　　)18.A.pollution B.energy C.industry D.water
(　　)19.A.friends B.products C.customs D.choices
(　　)20.A.hardly B.lately C.exactly D.awfully
Ⅲ.阅读理解(共4小题;每小题5分,满分20分)
In the 13th century, Marco Polo, the world-known Italian traveler, saw many wonderful things in China. One of the things he discovered was money made of paper. People in the West did not have such kind of money until the 15th century. However, the Chinese began to use it in the 7th century.
Paper was invented by a Chinese man called Cai Lun almost 2,000 years ago. But it was not made in Europe until the year 1100. Four hundred years later, a German discovered that he could make the best paper from trees. After that countries rich in forests, such as Canada, Sweden, America and Finland became the most important ones in paper making.
Paper can be used in many ways. The common uses include newspapers, magazines and books. But do you know that paper can be used for keeping warm In Finland, the farmers wear paper boots to keep their feet warm in the snow. And even houses can be insulated(使绝缘) from heat or cold with paper.
However, we have to understand that paper still comes from trees now. If we keep on wasting so much paper, there will not be any trees left on the earth some day in the near future. Every day people throw away about 2,800 tons of paper in our city. It takes 17 trees to make one ton of paper. This means that we are cutting down nearly 48,000 trees every day. The fact is that it takes more than 10 years for a tree to grow.
So we must start saving paper right now. We can use both sides of every piece of paper. We can make useful things out of used paper. We can use china cups instead of paper ones. When shopping, we can use fewer paper bags and reuse them if we have some.
In short, we should keep a balance(平衡) between using paper and protecting trees, and do it now before it is too late.
(　　)21.When did the Chinese begin to use paper money
A.In the 5th century.
B.In the 6th century.
C.In the 7th century.
D.In the 15th century.
(　　)22.In Finland, paper is used for 　　　　.
A.making beds
B.reducing waste
C.making umbrellas
D.keeping warm
(　　)23.According to the passage, how many trees are needed to make one ton of paper
A.10. B.17.
C.2,800. D.48,000.
(　　)24.Paragraph 5 mainly talks about 　　　　.
A.how paper boots are made
B.how paper was invented
C.how we can save paper
D.how we can make useful things
Ⅳ.语法填空(共10小题;每小题1分,满分10分)
阅读下面短文,在空白处填入一个适当的词,或填入括号中所给单词的正确形式。
　　Waste can be seen everywhere in the school. Some students ask for 25.　　　　(much) food than they can eat and others often forget 26.　　　　(turn) off the lights when they leave the classroom.They say they can afford these things. 27.　　　　 I don't agree with them.
Waste can bring a lot 28.　　　　 problems. Although China is rich in some resources(资源), we are short of(缺乏) others. For example, we're short of fresh water(淡水). It is 29.　　　　
(report) that we may have no coal or oil to use in 100 years. So if we go on wasting our resources, what can we use in 30.　　　　 future and where can we move Think about it. I think we should say no to the 31.　　　　(student) who waste things every day. Everybody should stop
32.　　　　(waste) as soon as possible.
In 33.　　　　(we) everyday life, we can do many things to prevent waste from happening. Little by little, everything will be 34.　　　　(change). Waste can be stopped one day if we try our best.
答案
Ⅰ.1.B　2.C　3.C　4.D
5.C　在if引导的条件状语从句中,从句用一般现在时,主句用一般将来时。
6.D
7.D　由时间状语“five years ago”可知,此处描述的是过去发生的动作,因此要用一般过去时。主语his car是buy的承受者,因此用被动语态。
8.C　9.B　10.A
Ⅱ.11.A　由空格前的“less”和空格后的“impact on the environment”可知,应该是减少对环境的有害影响。harmful意为“有害的”。
12.C　13.D　
14.B　由后面的“reduce greenhouse gas emissions”可知,此处应该是把汽车留在家里,可以减少汽车尾气的排放。
15.B　
16.A　由空格前面的“Walk or ride your bike to work, school…”可知,此处应该用anywhere,意为“任何地方”。
17.D　18.A　19.B　20.C
Ⅲ.21—24　CDBC
Ⅳ.25.more　26.to turn　27.But　28.of　29.reported　30.the　31.students
32.wasting　33.our　34.changed