高中英语评优课资料7 Unit 3 A Healthy Life课件.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Unit3 A healthy life,What is it?,Play a game,One,Student,reads the clues to the habits and the other one guesses the answer.,.,careful,person.,It is a bad habit for males and females.,You can become addicted to it.,Some people think you are grownup if you do this.,It makes you smell bad,and turn your teeth yellow.,What is it?,Smoking,.,careful,person.,It is a bad habit for both,males and females.,It is something you shouldnt start because you will be addicted to it.,It is something which is illegal.,It is a very expensive habit,and so will waste your money.,What is it?,drug taking,.,careful,person.,It is a disease you can catch if you have unprotected sex.,This illness stay in your body for a long time and eventually weakens your immune system.,There is no cure at the moment for this illness.,What is it?,AIDS,.,careful,person.,It is a bad habit for males,and females.,It begins as a social activity,at mealtimes.,It only becomes a problem when a person has too much,too often.,It can become addictive and cause great harm to the body.,What is it?,Drinking alcohol,.,careful,person.,It,is a bad habit,It,begins as,It,only becomes,It,is a disease,It,is something.,It,makes you smell bad,.,careful,person.,The use of It,-What do you think of the,movie,?,-,It,s,one of the best movies that Ive seen.,Whos the lovely baby?,My mother is Miss Wei.,It,s,my baby.,It,can be used as personal,pronouns,（,人称代词,）,referring to the person,animal or matter mentioned above,or the person who you are not,sure of gender.,summary1,a page from Peters dairy,_ was a sunny day.Peter decided to go for a walk to the park,though _ was two miles away._ was so comfortable to walk on the street.,it,it,It,Suddenly _began to rain.He found _ hard to walk there.Then he took a bus home.Unfortunately _ went wrong.When he got home,he was wet through.Thus _ was a day that he would never forget.,It,it,it,it,Eg,:,It,was a sunny day.Peter decided,to go for a walk to the park,though,it,was two miles away.,Summary 2,It,can be used as,impersonal,pronouns,（,非人称代词,）,to talk about time,date,distance or weather and so on.,Reading,Advice from Grandad,A healthy life,It,is not easy to stop smoking.,It,seems amazing that at my age I am,still fit enough to cycle 20,kilometres,in an,aftermoon,.,3.,You are founding,it,difficult to give it up.,Summary 3,“It”can be used in the subject,or object position to stand for,the infinitive,（不定式）,or a clause.,Rewrite these sentences using an“it”structure.,1.Giving up smoking is difficult.,It is,2.Some young people think they look attractive when they smoke.,It seems,3.Most people believe smoking causes cancer.,It is believed,difficult to give up smoking,.,that some young people think they look attractive when they smoke.,that smoking causes cancer,.,4.You are not allowed to advertise,cigrettes,in this country.,It is illegal,5.You could suffer from bad health if you keep smoking.,It is likely,6.You have to take pills to control your bloody pressure.,It is necessary,to advertise,cigrettes,in this country,.,that you could suffer from bad health,if you keep smoking.,for you to take pills to control,your bloody pressure.,Preparatory subject,（形式主语）,adj.,difficult/easy,Important,n.,pleasure/pity/,shame/fun,v.,It,is/was,It,is/was a,It,appears,seems,looks certain,is said,that,to do,that,to do,that,Preparatory object,（形式宾语）,v.,Sb.+,think,make,it,find,+adj.,to do,+,that,Join the two sentences by using“it”as object.,Jane thinks,it,funny that,I have,taken up Chinese,kungfu,.,I have taken up Chinese,kungfu,.,Jane thinks it is funny.,Role-play a dialogue.,One of you is an eye witness(E)who has seen a robbery,（抢劫）,or an,accident.The,other is the Policeman /,policewoman(P,)who wants as much information as possible.Use“it”in the answers.,For example:,P:What was the weather like on the day of the accident?,E:It was beginning to rain hard and the ground was slippery,（滑的）,.,P:How far could you see?,E:It was,impossble,to see more than twenty yards ahead of you,so all the cars were travelling very slowly.,P:What about,Mr,Lis car?Was it travelling slowly too?,Sum Up,It,can be used as,personal,pronouns,（人称代词）,It,can be used as,impersonal,pronouns,（非人称代词）,It,can be used in,the subject,or object,position to stand for,the,infinitiv,（不定式）,or a clause.,Review the use of it by doing the exercise on P57.,Homework,If you want knowledge,you must toil for,it,.,要想求知，就得吃苦。,The use of“it”for emphasis,可被强调的部分,除谓语之外的句子各成分。,基本句子结构,It is/was,被强调部分,that/who/whom+,其它。,备注,is,既可强调现在的情况，也可强调过去的情况。,Summary 4,The use of“it”for emphasis,可被强调的部分,除谓语之外的句子各成分。,基本句子结构,It is/was,被强调部分,that/who/whom+,其它。,备注,is,既可强调现在的情况，也可强调过去的情况。,Summary 4,We called on Professor Wang at his office this morning.,we,Professor,Wang,Eg,:,It was we,who/that,called,on Professor Wang at his,office this morning.,It was Professor Wang,whom/that/who,we called,on at his office this morning.,We called on Professor Wang at his office this morning.,at his office,this morning,It was at his office,that,we,called on Professor Wang,this morning.,It was this morning,that,we,called on Professor Wang,at his office.,