1、Section A,Unit 2 Keeping Healthy,Topic 3 Must we exercise to prevent the flu?,illnesses,感冒,发烧,咳嗽,头痛,牙痛,背痛,胃痛,have a cold,have a fever,have a cough,have a headache,have a toothache,have a backache,have a stomachache,Review,流感,have the flu,What should we do to prevent the illnesses?,We should do exerc
2、ise to build us up.,Ask and answer,预防,使身体强壮,What should we do to prevent the illnesses?,We had better eat more fruit and vegetables.,Ask and answer,What should we do to prevent the illnesses?,Ask and answer,We shouldnt spit everywhere.,What should we do to prevent the illnesses?,We must keep our roo
3、ms clean and the air fresh.,Ask and answer,We mustnt keep fingernails long.,What should we do to prevent the illnesses?,Ask and answer,学习目标） 1. Learn some new words:question, prevent, build, finally, crowded 2. Master the modal verbs “should” and “must”.(1) What should we do to prevent it?(2) -Must
4、we go to see a doctor at once when we have the flu?-Yes, we must.(3) -Must we take some medicine to prevent the flu?-No, we dont have to. /No, we neednt. 3. Talk about how to prevent the flu:First, we should exercise often to build us up.Second, we should keep our rooms clean and the air fresh all t
5、he time.Third, we should wash our hands and change our clothes often.Finally, we should keep away from crowded places.,预习导纲： 1、单词互译与记忆 prevent 2) finally 3) crowded 4) question 2、短语互译与记忆 go ahead 2) build sb up 3）change clothes often 4）一直 5）从远离 6) 保持房间清洁 7) 好好休息 3、句子理解与熟读 1) Must we exercise to prev
6、ent the flu? 2) We should keep our rooms clean and the air fresh all the time. 3) We should keep away from crowded places.,选词填空，并注意其正确形式。 question，prevent，build，final，crowd 1) The road is . He must drive his car slowly.2) We should drink lots of boiled water to _ the flu.3) Can you answer my , Lucy?
7、4) Jane plays sports often to her up.5) , you should have a good rest.,crowded,prevent,question,build,Finally,单项选择。 ( ) 1) - Must I do my homework at once, mom? - No, you _.A. must not B. may not C. neednt D. havent ( ) 2) Reading _ is good for you.A. too much B. much too C. too many D. many too ( )
8、 3) Youd better _ late for class.A. not are B. are C. not be D. not is ( ) 4) What should we do _ the children?A. help B. helping C. helps D. to help ( ) 5) As a student, we should keep our school _. A. cleaned B. clean C. cleaning D. to clean,C,A,C,D,B,1b,Work alone,Check () Dr. Lis advice accordin
9、g to 1a.,1. do exercise often 2. keep the air fresh 3. go to bed early 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, ,Watch the flash and write down Dr. Lis advice.,视频1a-P43,First, _ Second, _ Third, _ Fin
10、ally, _,we should exercise often to build us up.,we should keep our rooms clean and the air fresh all the time.,we should wash our hands and change our clothes often.,we should keep away from crowded places.,Key points,Must we go to see a doctor at once when we have the flu ? 肯定回答： Yes, we must. 否定回
11、答： No, we neednt. /No, we dont have to. 注：此处不能用 mustnt (禁止；不准)回答Eg: Must I finish my homework now ?No, you neednt. /No，you dont have to.,prevent prvent阻止、预防,1. prevent sth.预防某事 2. prevent sb/sth (from) doing sth. 阻止某人、某物做某事His parents tried to prevent him (from)playing computer games.,keep away from
12、远离.,1. keep away from doing sth (drinking)sth (snakes) 2.keep.away from. 让远离. Please keep the children from fire.,crowd,crowded是形容词,意思是“拥挤的” crowded trains (hotels, roads, shops) 拥挤的火车(旅馆，道路，商店) crowd 1.作名词 “人群”You can do what you want to do, but never follow the crowd. 你想做什么就做什么,可别随大流。 2.动词, “挤” 。
13、He tried to crowd into the train. 他尝试挤上火车,Make similar conversations after the example.,Example: A: Must we do exercise to prevent the flu? B: Yes, we must. A: Must we take some medicine to prevent the flu? B: No, we dont have to. / No, we neednt.,Pair work,2. A. Listen to the passage and circle the
14、 symptoms that you hear.,fever cough,headache backache,toothache stomachache,sore throat sore eyes,B. Listen again and check the advice you hear.,Should,drink lots of boiled watertake some cold pillslie down and take a good restbrush your teeth twice a day,Shouldnt,work on the Internet too longgo to
15、 crowded placesplay sports too mucheat hot food,3. Look at the pictures and write down the advice on how to prevent the flu, using should, had better or must.,1.,2.,We should exercise often.,We must go to see a doctor at once when we have the flu.,3.,4.,We had better keep away from crowded places.,W
16、e should take a shower often.,5.,6.,We should keep the air fresh.,We should change our clothes often.,Drink a lot of water.,Wash hands often.,Give more advice to prevent the flu,Eat healthy food.,Dont go to crowded places.,Do more exercise.,Open the windows.,选择方框中的句子完成对话，其中有两项多余。 A: You look pale, D
17、r. Li. _ B: I only feel a little tired. A: It looks more serious than being tired. _ B: No, thanks. Nothing serious, I think. A: _ But you have worked for thirty-six hours without having a rest. B: Im a doctor. _ A: _,F,G,B,D,C,Exercises,句型转换 1. You should drink more water. (改为否定问)You _ _ more water
18、. 2. We should eat healthy food to prevent the flu. (就划线部分提问) _ _ we _ to prevent the flu? 3. Must we clean the floor every day? （作否定回答）No，we _ _ _. 4. Youd better lie down now.（改为否定句）Youd better _ _ down now. 5. We must open the windows every day.（同义句转换）We must _ the windows _ every day.,shouldnt,drink,What,should,do,dont,have,to,not,lie,keep,open,summary,1.We know how to prevent the flu. 2.We can use must/had better/should to give advice.,Homework,写一篇小短文来说明如何预防流感。 背诵1a。,Thank you !,
