第四节 听短文填空。
| | Lisa's Volunteer Work |
| Time | 21. on |
| Place | at Children's Hospital |
| Activities | 22. sending to the children23. with their parents24. giving parents playing games with the children |
| Feeling | 25. She feels very . |

21. Fridays 22. lunch 23. talking 24. tea 25. happy

第一节 完形填空。
阅读下面短文,从每题所给的 A、B、C、D 四个选项中选出最佳选项。
March 22nd is World Water Day. It started in 1993. It not only makes us think about the importance of water, but also calls on us to 26 and protect water. Today, we're facing terrible water problems. Among them, the wastewater problem is rather 27. And the subject of World Water Day in 2017 was "wastewater".
What is wastewater? It is used water. Usually, wastewater comes from homes, 28, hospitals and so on. It is produced by different kinds of activities, including washing machines, taking showers and using kitchens. The rain also 29 wastewater when it is running down the street during a storm. No matter where it comes from, this kind of water is sure to have 30 harmful in it.
31 must we treat (处理) wastewater? Wastewater has a big influence on our lives. It causes both illness for us and pollution for the environment. We must care for our environment and our own 32.
How can we treat wastewater? Different kinds of wastewater need different ways of treatment. Wastewater 33 homes can be reused. Then there will be 34 wastewater. Also, factory wastewater has to be cleaned 35 it goes back to nature.
()26. A. drink
B. save
C. carry
D. watch
()27. A. easy
B. popular
C. small
D. serious
()28. A. factories
B. lakes
C. rivers
D. seas
()29. A. gets back
B. hands in
C. changes into
D. picks up
()30. A. nothing
B. something
C. anything
D. everything
()31. A. What
B. Who
C. Why
D. How
()32. A. work
B. interest
C. health
D. business
()33. A. on
B. for
C. with
D. from
()34. A. less
B. more
C. better
D. worse
()35. A. and
B. whether
C. after
D. before

26 - 30 BDACB 31 - 35 CCDAD