1、Topic 3Must we exercise to prevent the flu?.a cold 感冒illnesses a fever 发烧illnesses a toothache 牙疼illnessesa cough 咳嗽illnesses a headache 头疼illnesses a backache背疼illnesses a stomachache胃疼illnessesWhat should we do to prevent the flu?流感预防We should/had betterexercise often to build us up增强我们的体质We mustk
2、eep our rooms clean and the air freshWe should/had betterWe mustwash hands oftenWe should/had betterWe mustchange our clothes oftenWe should/had betterWe mustWe should/had betterkeep away from the crowed placesWe mustgo to see a doctorWe should/had betterWe mustA:Must we exercise to prevent the flu?
3、B:Yes,we must.A:Must we take some medicine to prevent the flu?B:No,we dont have to./No,we neednt.没必要情态动词，必须Flu is a serious illness,what should we do to prevent it？Listen to 1a and check Dr.Lis advice.1.exercise often 2.keep the air fresh 3.go to bed early 4.wash hands and change clothes often 5.kee
4、p our rooms clean 6.drink enough water 7.take some medicine 8.keep away from crowded places Write down Dr.Lis advice.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 wash our hands and change our clothes of
5、ten.we should keep away from crowded places.Act it outInterviewingOne student acts as a journalist and interviews one group about how to prevent the flu.Exercises:3.()1.Must I take part in the activity?No,you _.Youre too young.You should look after yourself.A.mustnt B.dont C.cant D.dont have to()2.W
6、hat should we do _ the flu?Do more exercise and have a healthy eating habit.A.to prevent B.preventing C.prevent D.prevents()3.May I use your pen?Sure,_.A.come on B.go away C.go ahead D.come here()4.You dont have to take medicine.Take exercise often,and youll get well soon.Thanks.Ill _ your advice.A.take B.make C.give D.hearDACAHomework 1.以How to prevent the flu为话题，写一篇小短文。学会运用情态动词和相关短语。2.预习SectionB.
