Ⅳ. 完形填空
从题中所给的A、B、C、D四个选项中选出能填入空白处的最佳选项。
Nowadays we can see that a lot of people are cutting down the trees in the forests. Many 1 ____ lands have become deserts. If we often read newspapers, we'll know that the forests on the earth are becoming smaller 2 ____. Some people are cutting down a large number of trees 3 ____ they need wood and farmland. Some scientists say that there will be no great forests 4 ____ 20 or 30 years.
What is going to happen if the forests disappear? A large number of plants will die and the animals will 5 ____ their homes. In many places the new farmland will look 6 ____ the old desert in a short time. People can't plant crops there. There won't be enough 7 ____, and the weather will become hot and dry. If the climate changes, life will be 8 ____ for everyone on the earth. Our living environment will become 9 ____. More and more rich farmlands will disappear. We will face a lot of droughts (干旱) and floods.
It's our duty 10 ____ the forests well. Everyone should try his best to protect the forests. Please try to prevent cutting down the trees and make the world greener!
( ) 1. A. low B. rich C. lonely D. high
( ) 2. A. on time B. all the time C. in time D. no time
( ) 3. A. or B. so C. because D. but
( ) 4. A. in B. at C. on D. with
( ) 5. A. find B. build C. lose D. decorate
( ) 6. A. like B. up C. at D. out
( ) 7. A. snow B. sunshine C. wind D. rain
( ) 8. A. easy B. hard C. happy D. interesting
( ) 9. A. better and better B. worse and worse C. bigger and bigger D. more and more
( ) 10. A. to do B. do C. to protect D. protect
