问题 填空题
用方框中所给单词的适当形式填空,每个单词限用一次,使短文通顺正确连贯,将答案填写在题后的横线上。
Save,  clean,  make,  keep,  use,  put,  grow,  swim,  collect , pick      
         Life today has brought about new problem.One of the biggest problems of every nation is pollution.In America,there are laws __1__the air and water clean.These are new laws and it has taken much time __2___ a polluted river or lake. Now the fish are healthy again and people can enjoy __3__in the clean water.  
    When food is brought from the store to the home,it is packed in paper,glass,or plastic.Every day a newspaper comes to the home.Americans use __4__all these materials in the garbage which was picked up by a large truck.The truck these materials to a garbage dump or a land-fill. The truck dumped the garbage into a large hole and then earth was pushed over the garbage until the hole was filled.Then, a new hole must be found.
    As the years went by,the garbage increased as the population __5__. Scientists suggested using some
garbage again. They advised businessmen __6__money by recycling or using paper,glass,and plastic again.
    Now,a recycling truck comes to each home once a week __7__ up materials.American families are told __8__their newspaper in boxes and clean all glass,  and plastic.  The  truck takes them to factories for
recycling.
    Recycling is a way __9__the environment from pollution by __10__ many materials again.

1._________  2.___________  3.___________  4.__________  5.__________
6._________  7.___________  8.___________  9.__________  10.__________
答案

1. to keep  2. to clean   3. swimming   4. to put   5. grew  

6. to make  7. to pick     8. to collect    9. to save    10. using  

判断题
单项选择题