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1、,Unit 8 Save the world,1. He made a mistake yesterday. But he explained the reason _us. A. forB. with C. to D. on,explain sth. for sb.向某人解释某事,2. Shes feeling _ tired after a long walk. A. a bitB. a bit of C. lots ofD. a few,a bit of/a little +不可数名词；a bit/a little/ a little bit +形容词/副词,3. Youd better
2、 _ more time talking with your parents so that they can understand you better. A. spendB. take C. costD. pay,A,had better do sth.最好最某事；spend time (in) doing sth.花费时间做某事,4. Ill lend you the story book as soon as I _ it. A. will finish readingB. will finish to readC. finish reading D. finish to read,C
3、,as soon as 一.就（主将从现）finish doing sth.完成做某事,5. There _ also too much rubbish and waste. A. are B. is C. hasD. have,B,rubbish 不可数名词,6. Li Wei, your room is dirty. Youd better _. A. clean it up B. clean up itC. to clean it up D. to clean up it,A,had better do sth.最好做某事；clean up 动副词短语（代中原则）,7. Mom, I a
4、m taking a shower. Could you help me_the telephone?A. put up B. check outC. give away D. pick up,D,ut up张贴，建造; check out 检验，办理退房手续；give away赠送，分发；pick up捡起，（开车）接，接电话,8. Dont waste much time_computer games. A. play B. plays C. playingD. to play,C,waste time (in) doing sth.浪费时间做某事,9. Our P. E. teacher
5、 encourages us _ exercise every day. A. take B. takes C. to taking D. to take,encourage sb. to do sth.鼓励某人做某事,10. I was badly ill a few days ago. But I _ my cold at last. A. threw off B. threw away C. cleaned up D. picked up,A,throw off 摆脱；甩掉to throw off a cold/your worries/your pursuers 治好伤风；消除忧虑；甩
6、掉追踪者,11. _ is important to protect the environment. A. This B. ThatC. It D. One,C,it is +形容词+to do sth. “做某事是.” it 是形式主语，to do sth.是真正的主语,12. In old days, the poor _ for the boss for over 18 hours a day. A. was made to be workedB. were made workC. were made to work,C,make sb. do sth.被动语态 be made sb.
7、 to do sth.,13. Dont throw out these cans. They can _. A. recycle B. recycledC. be recycledD. to be recycled,被动语态：be+done,被动语态,1.一般现在时：am/is/are+动词的过去分词2.一般过去时：was/were+动词过去分词3.一般将来时：will/be going to+be+动词过去分词4.过去将来时：would/was/were going to +be +动词过去分词5.现在进行时：am/is/are being+动词过去分词6.过去进行时：was/were b
8、eing+动词过去分词7.现在完成时：have/has been +动词过去分词8.过去完成时：had been+动词过去分词9.含有情态动词：情态动词+be+动词过去分词,14. The invention of the computer has _ to our life. A. given up B. added toC. made a difference D. kept to,give up 放弃；add to添加；make a difference产生影响；keep to遵守,15. When you are swimming, _ your ears. You can use e
9、arplugs (耳塞) to stop water getting into your ears. A. take after B. take part inC. take off D. take care of,take after与.相像；take part in 参加；take off 起飞，脱下；take care of照顾，注意,16. You study very hard. I _ you can pass the exam easily. A. make sure B. find out C. make sense D. give out,make sure 确定 ；make
10、 sense 有意义 ；find out 找出，查明；give out 分发；公布,17. Im not sure whether I can hold a party in the open air, because it _ the weather. A. stands for B. depends onC. lives on D. agrees with,stand for 代表；depend on 依靠，依赖；live on 以.为食；agree with 同意某人的观点,18. We _ animals and plants. A. die off B. take offC. get
11、 off D. live off,die off 灭绝；take off 起飞，脱掉；get off 下车；live off 以.为食,19. Dad, will you buy me a new bike?I dont know. Ill have to _ it. A. think about B. wait forC. put down D. turn on,think about 考虑；wait for 等待；put down 写下，镇压；turn on 打开,20. Good health _ good food, exercise and getting enough sleep.
12、 A. carries on B. lives on C. depends on D. holds on,carry on继续，参加；live on 以.为食；depend on 依赖，依靠；hold on 坚持，等一下,21. If there is too much pollution in the river, the fish will _. A. die for B. die from C. die of D. die off,die off 灭绝；die for 为.而死；die of 死于（内因）；die off 死于（外因）,22. The meeting will begin
13、 in half an hour. We must _ right now. A. start out B. put out C. leave for D. go away,start out 动身；put out 扑灭；leave for 出发去某地；go away 走开，离去,23. Workers have to _ rubbish to keep the mountains clean. A. turn up B. pick up C. mix up D. give up,turn up 调大；pick up 拿起，拾起；mix up 混合；give up 放弃,24. There a
14、re_tourists visiting the island on May Day every year. A. two thousands of B. two thousandsC. thousands of D. thousand of,口诀：有数字无s，有s有ofbillions of;millions of ;hundreds of,25. Miss Wu is going to London. Do you have _ to say?A. else somethingB. else anythingC. nothing else D. anything else,形容词修饰不定代词需后置,