【正文】
us maths since 1982. 1 They will have a trip (旅行 ) to the great wall if it ________ (not rain) tomorrow. 1 Li Ming often ________ (listen) to the radio in the morning. have taught doesn’t rain listens Choose the best answers. 1. May I stop my car here? No, you____ . A. can39。t B. mustn39。t C. needn39。t D. don39。t have to A 2. Must we clean the house now? No, you _______. 39。t B. may not C. mustn39。t D. can39。t 3. Man __die without water. A. will B. can C. need D. shall A A 4. –You____ return the book now. You can keep it next week if you like. 39。t B. mustn39。t C. needn39。t D. may not 5. Johnny, you____ play with the knife, you___ hurt yourself. 39。t...can39。t B. mustn39。t...may C. shouldn39。t, must D. can39。t...shouldn39。t C B 小結(jié)與作業(yè) 1. Look back on what we have learned in this lesson. 2. Homework: make a conversation with your parnter about what you can do to reduce pollution.