参考答案: 五、2630: BCDDA31-35: ACBCO36-40: BACCB 六、41-45: CCABB4650: ACACA 七、5155: CCDA5660: ACAD6165: DBBAO A 66 not afraid of, at all 67. have made a great contribution to 68. stop talking, keep quiet 69. as early as possible 70. twenty minutes on foot f, 71. draw 72. hard 73 idea 74. away 75. two 76.quickly77back 78.surprised 79. only 80 knew 十、A)81.In1970 82. There were 12. 134 83. They are planting trees, building bridges across rivers in forests, and so on 84Its“ No one' s going to change our world.” 85. They will use it to help to conserve wild animals Today I am very excited because i did a lot of things with my classmates and teachers to protect our environment. We met at the school gate at 8: 00 oclock in the morning. we went to a small town near in our school bus we took the posters and leaflets about environmental protection with us. We drew and wrote them at school before we left. In the morning we put up posters on the walls and handed out leaflets to the people who passed us. We talked about the environmental protection to the people In the afternoon we collected litter and picked up plastic bags. We cleaned the dirty streets. we planted many trees and flowers. At 6: 00 in the evening we came back home I felt very tired but happy参考答案： 五、26—30：B C D D A 31—35：A C B C C 36—40：B A C C B 六、41—45：C C A B B 46—50：A C A C A 七、51—55：C C B D A 56—60：A C A D B 61—65：D B B A C 八、66. not afraid of, at all 67. have made a great contribution to 68. stop talking, keep quiet 69. as early as possible 70. twenty minutes on foot 九、71.draw 72.hard 73.idea 74.away 75.two 76.quickly 77.back 78.surprised 79.only 80.knew 十、A) 81．In 1970. 82. There were 12,134. 83. They are planting trees, building bridges across rivers in forests, and so on. 84.It’s “No one’s going to change our world.” 85. They will use it to help to conserve wild animals. B) Today I am very excited because I did a lot of things with my classmates and teachers to protect our environment. We met at the school gate at 8:00 o’clock in the morning. We went to a small town near in our school bus. We took the posters and leaflets about environmental protection with us. We drew and wrote them at school before we left. In the morning we put up posters on the walls and handed out leaflets to the people who passed us. We talked about the environmental protection to the people. In the afternoon we collected litter and picked up plastic bags. We cleaned the dirty streets. We planted many trees and flowers. At 6:00 in the evening we came back home. I felt very tired but happy