15-16上湘教八年级units12课件unit topic3section a

1、Topic 3 Section AMust we exercise to prevent the flu? illnesses感冒 发烧咳嗽头痛牙痛背痛胃痛 have a coldhave a feverhave a coughhave a headachehave a toothachehave a backachehave a stomachache流感have the fluWhat should we do to prevent the illnesses?We should do exercise to build us up.预防使身体强壮What should we do to

2、prevent the illnesses?We had better eat more fruit and vegetables.What should we do to prevent the illnesses?We shouldnt spit everywhere.What should we do to prevent the illnesses?We must keep our rooms clean and the air fresh.What should we do to keep healthy? S1:We have to keep windows open in the

3、 day.S2:We dont have to keep windows open all the time.S3:We have to sweep the floors often.S4:We dont have to take medicine often.have to, dont have to What else should we do to keep healthy? S5:You had better go to bed before nine oclock in the evening.S6:She had better go to school by bike.S7:We

4、had better keep our fingernails clean.We had better drink eight cups of water every day.1aLook,read and sayListen to 1a and check Dr. Lis advice.1b 1.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 me

5、dicine 8.keep away from crowded places 1c Listen again and use the correct phrases in 1b to retell Dr. Lis advice with first, second, third and finally.First, _Second, _Third, _Finally, _ we should exercise often to build us up.we should keep our rooms clean and the air fresh all the time.we should

6、wash our hands and change our clothes often. we should keep away from crowded places.Key pointsMust we go to see a doctor at once when we have the flu ?肯定回答： Yes, we must.否定回答： 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

7、dont have to.Make conversations similar to 1a, using the information in 1b.1dExample: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. A. Listen to the passage and circle the symptoms that you hear.2fev

8、ercoughheadachebackachetoothachestomachachesore throatsore eyesB. Listen again and check the advice you hear.Should drink lots of boiled water take some cold pills lie down and take a good rest brush your teeth twice a dayShouldnt work on the Internet too long go to crowded places play sports too mu

9、ch eat hot food3. 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 exerciseoften.We must go to seea doctor at once when we have the flu.3.4.We had better keep away from crowded places.We should take a shower often.5.6.We should

10、keepthe air fresh.We should change our clothes often.1.ahead在前面2.spread传开，蔓延开3.Prevent防止，预防4.all the time一直，始终5.must 的用法6.keep away from远离后面接名词，代词或者动名词Sum up选择方框中的句子完成对话，其中有两项多余。A: You look pale, Dr. 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: _FGBDCExercisesA. I have to save the patients.B. I know SARS is spreading.C.