阅读下面短文，按照句子结构的语法性和上下文连贯的要求，从1~15各题所给的A、B、C和D项中选出最佳选项，并在答题卡上将该项涂黑。
Mike still remembered the morning he first saw the purple pond (池塘). The water looked sick. The top of the pond was covered 1_________ paints, chemicals and plastic bags. No flowers grew. No birds came. "How could this happen?" Mike asked ___________2. At that moment, he, 3_____________ that the climate problem was not something far away.
Through books and online articles, Mike learnt that ponds are lifelines in the water system. They 4____________ help store rainwater for villages during dry seasons and reduce flood risks after heavy rains. They are home to 5___________ insects, birds and plants.
6_____________ there is far less attention on protecting these small water bodies than on oceans and rivers. The ponds 7___________, though they are just as important. Even when people spend a lot of money 8_____________ ponds, they often become polluted again without care.
Mike and 9______________ student from his class decided to start 10_______________ small group called "Pond Protectors". They helped villages check their water quality using IT-based sensors and mobile tools. These devices (设备) could check things 11_________________ temperature, salt, and pH levels. Then they visited schools. They showed students 12 ______________it is important to protect such water bodies and taught them how to use the devices.
13_____________, a big group of young people became pond protectors. "They now go around themselves and take the data from the ponds ..." said Mike proudly. “Even 14____________ act can create the largest ripple effect (涟漪效应)!”
The group also invited people 15_________photos of the ponds nearest to them. When people notice, they start to care. And when they care, they protect!
1. A. with B. for C. on D. of
2. A. he B. his C. him D. himself
3. A. realizes B. realized C. will realize D. has realized
4. A. should B. can C. must D. need
5. A. count B. counter C. countless D. countlessly
6. A. So B. Or C. And D. Yet
7. A. forget B. are forgetting C. are forgotten D. forgot
8. A. clean up B. cleaned up C. cleaning up D. to clean up
9. A. another B. other C. the other D. others
10. A. a B. an C. the D. /
11.A. as B. like C. in D. at
12.A. why B. where C. what D. how
13. A. However B. Soon C. Instead D. Besides
14. A. small B. smaller C. smallest D. the smallest
15. A. posted B. post C. posting D. to post
