Question

8．Hundreds of years ago，life was harder than it is today．People didn't have modern machines．There was no modern medicine，either．
　　Life today has brought new problems．One of the biggest is pollution．Water pollution has made our rivers and lakes dirty．It kills our fish and pollutes our drinking water．Noise pollution makes us talk louder and become angry more easily．Air pollution is the most serious kind of pollution to all living things in the world．
　　Cars，planes and factories all pollute our air every day．Sometimes the polluted air is so thick that it is like a quilt （被狀物） over a city．This kind of quilt is called smog．
　　Many countries are making rules to fight pollution．Factories must now clean their water before it is thrown away，and they mustn't let dirty smoke go into the air．
　　We need to do many other things．We can put waste things in the dustbin and do not throw them on the ground．We can go to work by bus with our friends in the same car．If there are fewer people driving，there will be less pollution．
　　Rules are not enough．Every person must help to fight pollution．
51．Hundreds of years ago，life was much harder than it is today becauseC．
A．there were not any modern machines
B．there was no modern medicine
C．both A and B
D．there were not many people
52．What is the biggest problem in today's life？D
A．Water pollution
B．Air pollution
C．Noise
D．Pollution
53．The most serious kind of pollution isB．
A．noise pollution
B．a(chǎn)ir pollution
C．water pollution
D．A，B and C
54．Factories must clean their waterD．
A．before they are thrown away
B．when they are thrown away
C．a(chǎn)fter it is thrown away
D．before it is thrown away
55．From the passage we know thatD．
A．a(chǎn) few years ago，there was no smog at all
B．today people don't have to talk to each other in a loud voice
C．we can drink water from the polluted rivers and lakes
D．people are making rules in order to fight pollution．

Answer 1

分析 現(xiàn)代生活也給人類帶來了新的問題，就是環(huán)境污染，水、空氣和垃圾污染嚴(yán)重，應(yīng)該引起我們的注意．

解答 51．答案是C 細(xì)節(jié)理解題．根據(jù)第一段life was much harder than it is today．People didn't have modern machines．There was no modern medicine，either．以前沒有現(xiàn)代的機(jī)器和現(xiàn)代的化學(xué)品，所以C正確．
52．答案是D 細(xì)節(jié)理解題．根據(jù)文章第二段One of the biggest is pollution．最大的問題是污染，可知D正確．
53．答案是B 細(xì)節(jié)理解題．根據(jù)第二段第3行Air pollution is the most serious kind of pollution．空氣污染是最嚴(yán)重的污染，所以B正確．
54．答案是D細(xì)節(jié)理解題．根據(jù)文章第四段Factories must now clean their water before it is thrown away工廠必須在他們的污水排放以前進(jìn)行凈化，所以D正確．
55．答案是D 細(xì)節(jié)理解題．根據(jù)文章第四段Many countries are making rules to flight pollution．很多的國家都制定了條例來與污染作斗爭，所以D正確．

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