The world itself is becoming much smaller by using modern traffic and modern communication means（通讯设备）.Life today is much easier than it was hundreds of years ago, but it has brought new problems. One of the biggest is pollution. To pollute means to make things dirty. Pollution comes in many ways. We see it,smell it, drink it and even hear it.
Man has been polluting the earth. The more people there are, the more pollution there will be. Many years ago, the pollution was not so serious because there were not so many people.Man is now slowly polluting the whole world.
Air pollution is still the most serious.It's bad for all the living things in the world,but it is not the only one kind of pollution.Water pollution kills our fish and pollutes our drinking water.Noise pollution makes us angry more easily.
The pollution of SO2 is now the most dangerous kind of pollution.It is caused by heavy traffic.It is sure that if there are fewer people driving,there will be less pollution.
Many countries are making rules to fight(同……作斗争) pollution.They stop people from burning coal(烧煤) in houses and factories in the city.Dirty water is not allowed to go into rivers,lakes,seas and oceans.
The earth is our home.We must take good care of it.
根据短文内容，选择正确答案，将其代号填入左边括号内。
1.Our world is becoming much smaller because _______ .
A.the earth is polluted
B.of the development(发展) of science and technology
C.of the growth(增长) in population
D.earth is blown away by the wind every year
2.Many years ago,life was _______ it is today.
A.much easier than B.as easy as
C.as hard as D.much harder than
3.The underlined(下划线的) word“it” at the end of the first paragraph(段落) means _______ .
A.water pollution B.air pollution
C.noise pollution D.all kinds of pollution
4.Why is air pollution the most serious kind of pollution?Because it _______ .
A.is bad for all the living things in the world
B.makes much more noise
C.makes our rivers and lakes dirty
D.makes us angry more easily
5.Which of the following is not true?
A.Many countries are making rules to fight pollution.
B.The problem isn't so serious because there aren't so many people living on the earth.
C.The population of the earth is growing.
D.If people could go to work on foot or by bike instead of motorbike or car,it would be helpful in fighting against the problem of SO2.
(Keys:1—5 BDCAB)
《英语辅导报》(初三版)第34期第6版：
Pollution
The world itself is becoming much smaller by using modern traffic and modern communication means（通讯设备）. 1 today is much easier than it was hundreds of years ago, but it has brought new 2 . One of the biggest is pollution. To pollute means to make things dirty. Pollution comes in many ways. We see it, 3 it, drink it and even hear it.
Man has been polluting the earth. The 4 people, the more pollution. Many years ago, the pollution was not so serious 5 there were not so many people. When the land was used up or the river was dirty in one place, man 6 to another place. But this is no longer true. Man is now slowly polluting the whole world.
Air pollution is now the most serious. It's 7 for all living things in the world, but it is not the only one kind of pollution. Water pollution 8 our fish and pollutes our drinking water. Noise pollution makes us 9 more easily.
Many countries are making rules to fight pollution. They 10 people from burning coal（煤）in houses and factories in the city, and from putting dirty 11 into the air.
Pollution by SO2 is now the most 12 kind of air pollution. It is caused by heavy traffic. It is true that if there are fewer people 13 , there will be less air pollution.
The earth is our home. We must take care of it. That means 14 the land, water and air clean. And we must take care of the 15 in pollution at the same time.
1.A. Flight B. Sleeping C. Life D. Meeting
2.A. difficulties B. business C. jobs D. problems
3.A. smell B. touch C. dream D. want
4.A. better B. more C. fewer D. stranger
5.A. if B. because C. until D. when
6.A. flew B. ran C. moved D. arrived
7.A. bad B. safe C. hard D. possible
8.A. helps B. treats C. frightens D. kills
9.A. hungry B. angry C. excited D. sad
10.A. continue B. finish C. stop D. start
11.A. fire B. litter C. wind D. smoke
12.A. dangerous B. important C. interesting D. popular
13.A. driving B. playing C. swimming D. dancing
14.A. increasing B. producing C. keeping D. making
15.A. proGREss B. price C. information D. rise
(Keys:1— 5 CDABB 6—10 CADBC 11—15 DAACD)
