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The earth is our home and we must take good care of it. That is to say we must   1   the land, air and water clean. But man    2  a lot of pollution on earth since he first made fire, washed his clothes in the river and threw rubbish on the ground. Many years ago, pollution was not so serious   3    there were not so many people.

There were enough    4   air, land and water. When the land or the river was dirty in one place, man moved to    5   place. Man is    6   the whole world now. So there is   7    enough clean air, nor clean land, nor clean water now. The more people there are in one place,    8    environment they maybe have.

Perhaps you are afraid     9   is endless(無(wú)休止的) for people to produce pollution.

    10  , we are glad to tell you that people have come to know the danger of pollution. And you can find more and more people are working hard to protect our earth.

1.                A．have           B．take           C．watch    D．keep

2.                A．produced       B．has produced    C．is producing   D．will produce

3.                A．so             B．if              C．because  D．but

4.                A．clean          B．old            C．dirty D．new

5.                A．other          B．the other       C．a(chǎn)nother  D．others

6.                A．pollute         B．polluting        C．clearing  D．clear

7.                A．neither         B．both           C．either    D．none

8.                A．the worst       B．the worse       C．the bad   D．worse

9.                A．that           B．this            C．what     D．it

10.               A．Quickly         B．Especially       C．Luckily    D．Anyway

完形填空

　　The world itself is becoming much smaller by using modern communication means (通訊). Life today is much easier than it was hundreds of years ago, but it has brought new 1 ．One of the  2 is pollution (污染). To pollute means to make things  3 . 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, the more pollution. Many years ago, the problem was not so serious  4 there were not so many people. When the land  5 or the river was dirty in a place, men moved to another place. But this is no longer true. Man is now slowly polluting the whole world.

　　Air pollution is still the most serious. It's  6 to all living things in the world, but it is not only one kind of pollution. Water pollution kills our fish and pollutes our drinking water. Noise pollution makes us become angry  7 .

　　Many countries are making rules (法規(guī)) to fight pollution. They  8 the people from burning coal (煤) in houses and factories in the city, and from blowing dirty smoke into the air.

　　The pollution of is now the most dangerous problem of  9 pollution. It is caused (引起) by heavy traffic. It is  10 that if there are fewer people driving, there will be  11 air pollution.

　　The  12 is our home. We must take care of it. That means keeping the land, water and air clean. And we must keep careful of the rise in pollution at the same time.

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A wise man was walking from one town to another with a few of his followers, and they happened to pass a lake. So they stopped there to   1  for a while, and the wise man said to one of his followers, “I am very  2 . Could you please  3  me some water from the lake?”

The follower walked to the lake  4  the wise man requested. Some people were washing clothes in the water, and right at that moment, several carts (手推車) started crossing the lake.  5  , the water became very muddy.

Then he went back and told the wise man that the water was very muddy and not   6  to drink.

After they had rested for about half an hour, the wise man again asked the   7  follower to go back to the lake and get him some water to drink. As requested, the follower went to the lake. This time he found that all the mud had   8   to the bottom. The water was very   9 and looked fit to drink. So he    10 his water bottle and took it to the wise man.

The wise man took the water bottle and drank, then looked up at the follower. “See what you did   11   the water clean?” he said. “You let it be for a while and the mud settled down on its own,  12  you could get some clear drinking water. Your mind can also be like that lake when it is   13   by something. If you just let it be and give it a little time, it will most likely settle down on its own   14  being put in any effort at all to   15   it.”

1.                A．rest           B．look           C．watch    D．see

2.                A．hungry         B．thirsty          C．happy    D．sad

3.                A．get            B．give            C．take D．bring

4.                A．while          B．before          C．a(chǎn)s   D．until

5.                A．However       B．Instead         C．In addition D．As a result

6.                A．fit             B．a(chǎn)ble           C．important D．interesting

7.A. different   B same          C. other            D. left

8.                A．gone           B．been           C．settled   D．lived

9.                A．dirty           B．clear           C．fresh D．sweet

10.               A．got            B．finished        C．reached   D．filled

11.               A．making         B．to make        C．made D．had made

12.               A．so that         B．in order to      C．because   D．when

13.               A．woken         B．left            C．disturbed D．given

14.               A．without         B．with           C．a(chǎn)fter  D．like

15.               A．prevent        B．calm           C．protect    D．fix

Today  1  people live in cities．So there is usually little room in a city to grow food．2   of the land in a city is used  3  homes, shops, roads and parks．

Most food for city  4  is grown in the countryside．It is often brought to the city by truck, train and plane．Some food is even carried into the city by car．

Do you live in a city? If you  5  , think of all kinds of food you eat in a day．All of the food comes from the countryside．The wheat(小麥)for your bread is grown on farms in the countryside．So are vegetables．

Water is   6  thing that cities get from the countryside．Everyone needs water every day．We use a little of it for  7．But we use even more to  8   bathtubs (浴缸), run showers, and wash streets．

The  9    used by cities comes mostly(主要的) from rain．But people cannot use the rain  that frills on cities．The rain  10  dirty as it falls  11  dirty air．Once it hits city buildings or streets, the rain will  12  more dirt(塵埃)．It is not good for drinking  13  bathing．

So cities must reach out to the  14  countryside for water．There, the rain falls through  15   onto trees and grass．The fallen rain runs into rivers and lakes．So it is important to keep both cities and the countryside clean．

1．A．less and less   B．more and more    C．quite a few           D．lots of

2．A．Some          B．Most            C．Many               D．Few

3．A．for                   B．of               C．by                  D．from

4．A．men                  B．women           C．person                     D．people

5．A．live in          B．don’t live in        C．do                  D．don’t

6．A．one            B．other            C．others．           D．a(chǎn)nother

7．A．eating          B．drinking           C．washing            D．watering

8．A．fill                    B．fall              C．full                 D．drop

9．A．water                 B．food             C．tea                 D．vegetables

10．A．looks                B．keeps            C．changes             D．becomes

11．A．a(chǎn)cross              B．a(chǎn)long            C．through             D．past

12．A．pull up       B．pick up                   C．put up              D．catch up

13．A．a(chǎn)nd                 B．but              C．or                  D．so

14．A．clean               B．tidy               C．clear                D．nice

15．A．smoke              B．light             C．cloud                D．a(chǎn)ir (空氣)