牛津译林版英语8B Unit4 Grammar课件(共41张PPT).ppt

Must 引导的一般疑问句的回答： eg. Must I go now? 肯定回答：Yes, you must. 否定回答：No, you needn’t No, you don’t need to No, you don’t have to (不必) I dont know__________. A. what to say it B. what to talk C. what to talk aboutI wonder if you could tell me_________. A. which room to live in  B. which room to live   Complete the rules of Reading Week with must, must not, have to or don’t have to. You (1) _____ keep quiet when reading. You (2) _____ keep the books clean and tidy. You (3) _______ draw or write on the books . must must mustn’t P56 You (4) _______ eat or drink when reading. It will make books dirty. You (5) _____ return the books on time. If you want to keep them longer, you (6) ______ renew them. You (7) ____________ bring your student card every time you go to the library, but remember to bring your library card. mustn’t must have to do not have to 注意: must 还可以表示肯定猜测，意思是 “一定” 。否定的猜测是can’t. e.g. 走了那么远的路，你一定饿了吧。 You must be hungry after walking such a long way. eg. 那肯定不是Lucy，她已经去了美国。 That can’t be Lucy. She has gone to the USA. 1. --Must we finish all the exercises today? --Yes, you _______. / No, you ________. 2. You __________ throw rubbish on the ground. 3. It’s going to rain. You ______________ water flowers. 4. Simon’s name is on the cover of the book. It _______ be his. It _______ be yours. must needn’t mustn’t don’t have to must can’t 1. Someone has put away(收拾，整理) the books. You________do it. A. mustn’t B. needn’t C. shouldn’t D. can’t 2. It’s the library. So you ______ know shouting is not allowed here. A. can B. must C. need D. may 3. Can we discuss here? No, you ______. You will disturb other people. A. mustn’t B. won’t C. don’t D. needn’t 4. -Must I return the book today?-No, you _____. A. don’t B. can’t C. mustn’t D. needn’t 1. When I go into the clothes shop, I always can’t decide _____