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1、Unit 2 Topic3,Must we exercise to prevent the flu?,Section A,We must exercise often to build us up.,使身体强壮,We must keep the air fresh all the time.,一直,crowded,We should keep away from crowded places.,拥挤的地方,A: Must we keep away from crowded places to prevent the flu? B: Yes, we must.,Ask and answer,A:
2、 Must we close the window to prevent the flu? B: No, we dont have to. / No, we neednt. We must keep the air fresh all the time.,Ask and answer,A: Must we take some medicine to prevent the flu?,B: No, we dont have to./ No, we neednt.,Ask and answer,A: Must we exercise often to build us up? B: Yes, we
3、 must. A: Must we close the window to prevent the flu? B: No, we dont have to. / No, we neednt. We must keep the air fresh all the time.,Ask and answer,1a,1. How many suggestions does Dr.Li give?,2. Must we go to see a doctor at once when we have the flu?,- Four.,-Yes, we must.,Listen and answer,A:
4、Must we . to prevent the flu? B: Yes, we must. No, we dont have to. / No, we neednt.,Pair work:,keep away from crowded places,exercise often,take some medicine,keep the air fresh all the time,1,2,3,4,Choose one of the pictures to make a dialog.,1. exercise often 2. keep the air fresh 3. go to bed ea
5、rly 4. wash hands and change clothes often 5. keep our rooms clean 6. drink enough water 7. take some medicine 8. keep away from crowded places, ,Listen again and check Dr.Lis advice,Listen and follow,2. What should we do to prevent it.,5. Must we go to see a doctor at once when we have the flu?,3.
6、First.second. third.finally.,4. We should exercise often to build us up.,6. Well take your advice.,Key points,prevent sth.预防某事,同意别人的请求,build sb. up使某人强壮,否定回答不能用 mustnt,take ones advice采纳某人的建议 give sb. advice 给某人建议,Retell(复述) Dr.Lis advice,we should exercise often to build us up.,First,Second,Third,w
7、e should wash our hands and change our clothes often.,Finally,we should keep away from crowded places.,First,Second,we should keep our rooms clean and the air fresh all the time.,Third,Dr. Lis advice,4 people are in a group. Discuss(讨论) in groups and write down some advice, using should/shouldnt, ha
8、d better(not) and must/mustnt. Then group leaders give us a report(汇报).,Group work: talk about how to prevent the flu,summary,New words and phrases: prevent, build sb. up, all the time, crowded, journalist, question, finally, go ahead 2. Sentence structure: A: Must we.? B: Yes, we must. No, we dont
9、have to. / No, we neednt. 3.We know how to prevent the flu.,一、单项选择。 1. Must we keep the windows open all the time? No, we_ . A. mustnt B. shouldnt C. neednt 2. I do exercise every day to_ A. build up me B. build me up C. build me down 3. May I ask you some questions, Dr. Wang? _ A. Youre welcome. B. Sure, go ahead. C. Yes, you must. 二、根据汉语提示补全句子 1. We must clean the classroom every day.（同义句转换） We must _ the classroom _ every day. 2. Must we smoke to help us relax?（作否定回答） No，_ _ _ _.,C,B,B,keep,clean,we,dont,have,to,Homework,写一篇小短文来说明如何预防流感。 背1a以及P(43)-(44)的单词。 3. 完成绿色同步SectionA。,