题目内容
We must learn ways to stop ________ so much.
[ ]
A
B
C
The earth is our home. We must take care of it. Life today is easier than it was years ago, but it has brought some new problems. One of the biggest problems is pollution（污染）. We can see it, smell it, drink it and even it. Man has polluted the . The more people, the more pollution.Many years ago, the problem was not so serious because there were not so people. When the land was used up (用光), the river was not clean in a place,man went to place. Now man is slowly polluting the whole world pollution is still the most serious, it’s bad for things in the world.Many countries don’t le t people burn for air in houses and factories in the city. Pollution by SO2 is now the most dangerous kind of pollution. It’s caused by heavy traffic. People say it’s to ride bikes. When you are , there is no pollution. But even in developed countries, most people don’t go to work by bike. It’s not bikes are expen sive or people are tired if they ride to work. It’s because the number of cars on the roads becomes larger. So more people their bikes and go to work by cars, then things are getting . We should have special roads only for bikes and make it difficult and expensive for drivers to take their cars into the city that they will go back to use their bikes.
1.A. hundred B. hundreds of C. hundred of D. hundreds
2.A. listen B. listen to C. hear of D. hear
3.A. moon B. star C. earth D. sun
4.A. lot B. little C. many D. much
5.A. others B. the others C. the other D. another
6.A. Air B. Food C. Water D. Noise
7.A. life B. live C. living D. lives
8.A. something bad B. bad something
C. something good D. good something
9.A. water B. air C. noise D. white
10.A. least B. best C. most D. worst
11.A. driving B. biked C. riding D. ridden
12.A. why B. because C. what D. how
13.A. put on B. look at C. put away D. look up
14.A. better and better B. more and more
C. worse and worse D. bigger and bigger
15.A. quite B. such C. very D. so
ost
D. worst