小题1:C
小题2:B
小题3:C
小题4:A
小题5:A
小题1:.根据文章内容I can’t remember when I started collecting litter（垃圾）. But it was when I got tired of seeing litter near my home and realized that no one else was going to pick it up.可知答案为C
小题2:根据文章内容I live close to a forest in Ohio, America.可知答案为B
小题3:.根据文章内容I made my first trip to clean the forest that afternoon.可知答案为C
小题4:.根据文章内容Since that first trip three years ago, I’ve gone to the forest four times a year to pick up litter. I’m often there for three hours. It makes me feel great to do something for the environment.可知答案为A
小题5:.根据文章内容可知答案为A