21. ____________　 22. ____________　 23. _____________

24. ____________　 25. ____________

Many scientists say that the world is getting hotter and hotter. If they are right, the ice at the North and South Poles will melt(融化) eventually. If this __________64__(happen) , the sea will rise and may cover most or all of Singapore. This _________65__(force) everybody to move to a safer country.

We know that the sun________66___(heat) the earth .The heat from the sun hits the ground , and some of it goes back into the sky. However, factories and vehicles(车辆) produce a lot of harmful gases. When the gases rises into the sky, heat from the sun can come through them but heat from the ground cannot. It stays near us in the sky and makes the air hotter and hotter every year.

Scientists call this the “greenhouse effect” because a greenhouse is a small glass building which is hot inside. It _______67__(use) for growing plants in cool countries. Many countries are worried about the greenhouse effect. They ___________68___(try) to stop factories and vehicles from ___________69___(send) harmful gases i

nto the sky. Scientists are not sure when the world will get much hotter. Some people say that the greenhouse effect _________70___ (start) already and has begun to affect the world’s weather.

64___________ 65___________　 66__________　 67___________

68___________　　 69___________　　 70__________

六 完成句子。

71 这是他昨天给我买的那本书。

72不应该允许青少年玩太多的电脑游戏。

73昨晚我妈妈在洗衣服的时候，我在帮我爸爸修理自行车。

74 昨晚直到我昨晚了作业，我才睡觉了。

75 他说他一到北京她就给我写信。

76 我们应该感谢父母，因为他们给我们提供了衣食。

　 　　　　　　　　　　, for

七 短文填空

　 Brownie and Spotty were neighbor dogs. They loved each other and played together so often that they had made a path(小路) through the grass of the field ___77___their houses.

　 One evening Brownie’s family noticed that Brownie didn’t return home. They went to look for him______78______. Brownie didn’t show up the next day, and the next week.

　 Spotty went to Brownie’s house alone. He barked loudly. But Brownie’s______79_____were too busy to care about him. Finally, one morning Potty________80______to take “no” for an answer/ He followed Ted , Brownie’s owner, everywhere he went .He barked , then rushed toward a nearby empty place and back , as if to say, “Follow me!”

Finally, Ted followed the dog across the empty place. The little dog_____81____ the man to a tree half a mile from the house .There Ted found Brownie alive. One of his legs was crushed (压住)in a trip(老鼠夹).Ted wished he had come ________82____. Then Ted noticed that , in a circle around the injured dog, a lot of ______83____was left over after lots of meals.

Spotty had been visiting Brownie every day. He had stayed with Brownie to protect him , snuggling(依偎) with him at night to keep him ________84__and nuzzling(用鼻子爱抚) him to keep his spirits up.

77 __________78 _________79 __________　　 80__________

81___________82__________83___________　　 84___________

八 书面表达

　 　为了保护环境，节约能源，中国政府出台了一条禁令：从2008年6月1日起，禁止在超市和商店中使用超薄塑料袋。针对这条禁令，某学校组织了一次讨论会，请同学们畅所欲言，发表自己的看法。 下面是李扬同学的发言内容：

　请你根据李扬同学的发言内容，以他的名义写一篇书面发言材料。

　 要求：

1、围绕他的观点和意愿进行表达，所表达的内容可以进行适当的拓展；

2、所表达的内容必须包含上表中的3个要点；

3、词数100左右，开始语已给出(不计次数)

提示词汇： ban(禁令), provide , free(免费), protect , cause ,

　pollute ,soil(土壤), energy , carry out , improve, recycle ,

　soft drink can(易拉罐)

Hello , everyone !

　 China has just put a plan on the use of much thinner plastic bags starting on June 1 , 2008.

63.The soldiers are working hard on improving the living___________

[kən’diʃənz]of the people in the disaster.

62.Bob is used to reading a newspaper or a _______[mægəzin] while waiting for a bus.