Question

 The world is not only hungry but also thirsty for water. This may seem strange to you ，since 1 70% of the earth's surface is covered with water. But about 97% of that is sea water or salt water. Man can only drink and 2 the other 3% of fresh water from rivers,lakes,underground and so on. And we can not even use all of that 3 some of it has been made dirty.

  Earth Day is April 22. But on all other days,we must also remember how 4 water is. The water that we use is the most important natural resource on the earth. Today we 5 serious water problems. One of them is water pollution. All kinds of things from cars,factories,farms and homes make our rivers,lakes and ocean Polluted water is very bad for people to drink. And dirty water is bad for fish,too.

  How do cars and factories make our water dirty? First they pollute the air. Then when it 7 ,the rain water makes our drinking water dirty. Dirty rain,called acid rain (酸雨).is also bad for plants,animals and buildings. Scientists say that 8 30 years,more than half of the people in the world won't have enough clean water. We have to learn how to 9 wasting water. One of the first steps is to develop ways of reusing it.

  But 10 every large city reused its water,we would still not have enough water. So we should make use of sea water by removing the salt in it. If we can take these steps,fresh water won't be used up. 

(   ) 1. A. only B. already

      C. nearly D. hardly

(   ) 2. A. use B. eat

       C. afford D. produce

(   ) 3. A. until B. when

      C. before D. because

(   ) 4. A. interesting B. different

       C. important D. exciting

(   ) 5. A. face B. save

       C. know D. discover

(   ) 6. A. nice B. dirty

       C. clean D. ugly

(   ) 7. A. rains B. blows

      C. snows D. turns

(   ) 8. A. for B. in

      C. during D. after

(   ) 9. A. enjoy B. finish

       C. keep D. stop

(   ) 10. A. as usual B. since then 

      C. even though D. in fact

Answer 1

1. C nearly意为"几乎，将近"，符合句意。

2. A

3. D 4.C

5. A face意为"面临"。

6. B

7. A  由下一句中的the rain water可知，是指"当天下雨的时候"。

8. B in +—段时间意为"在.•••••之后"，与下一分句的将来时态呼应。

9. D stop doing sth.意为"停止做某事"，符合上下文语境。

10. C even though意为"即使"，符合句意。