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,单击此处编辑母版标题样式,八年级下册,4,Seeing the doctor,Module,Unit 3,Language in use.,To summarise,and consolidate the use of the present perfect tense together with,since,and,for,To be able to understand learning materials on health,To be able to carry out a survey on healthy living with the help of others,Teaching aims,I havent done much exercise,since I got,my computer,last year.,I have had him,for three months,now.,Since then,it has become part of my life.,Language practice,现在完成时（三）,当表示动作已经完成并对现在有一定影响时，我们一般用现在完成时。同时，可分别 用,just,already,或,yet,加以强调或说明。,其结构也是：,have/has+,动词的过去分词,.,常用的时间状语有,:,already,just,一般置于,have/has,之后，,用于肯定句中,；,在否定句中,则要用,yet,表示“还，未”。,Grammar,for,和,since,在现在完成时中的应用,for,与,since,都能与现在完成时连用，但区别较大：,（,1,）,for,后须接“时间段”,He has studied English,for,five years.,他学英语,5,年了。,（,2,）,since,后须接“时间点”,He has studied English,since,1999.,他从1999年开始学英语。,（,3,）,二者可以转换,for+,一段时间,=since+,一段时间,+ago,He has been here,for,five weeks.,=He has been here,since,five weeks ago.,他到这儿已经有五个星期了。,如：,He has taught here,since,he came to China.,自从他来到中国就在这儿教书。,We have been friends,since,we met in school.,我们从在学校见面起就成为了好朋友。,(4)since,能引导时间状语从句,(,主句用现,在完成时，从句用一般过去时,),，而,for,则不能。,（,5,）,现在完成时常用句型：,It is(has been)+时间段+since+时间状,语或从句,It is four days,since,last Friday.,从上周五到现在已经四天了。,It has been two years,since,Jim came to,Beijing.,吉姆来北京已经两年了。,This is the first(second)time that+从句,句型中的that从句通常使用现在完成时。,如,：,This is the first time that,Jenny and Danny,have been to China.,这是珍妮和丹妮第一次来,中,国。,This is the third time that,I have seen,Karen.,这是我第三次见到,Karen,。,（,6,）,均须与延续性动词连用，也可以与非,延续性动词的否定式连用。,如,:,I have bought this computer since four,years ago.(),I have had this computer since four years,ago.(),I havent bought anything for two,months.(),I havent heard from him for 3 weeks.,(),非延续性动词和延续性动词的转换,leave be away,borrow keep,buy have,begin/start be on,die be dead,finish-be over,open sth keep sth open,fall ill be ill,get upbe up,come here be here,join be on+,组织机构,/be a member of+,组织机构,go there be there,become be,come backbe back,fall asleep be asleep,get to/arrive/reach be(in),leave be away from,get to know know,go(get)out be out,，,put onwear,catch a cold have a cold,get marriedbe married,等,。,The old man died 4 years ago.,The old man has been dead for 4 years.,It is 4 years since the old man died.,Four years has passed since the old man,died.,He joined the Party 2 years ago.,He has been in the Party for 2 years.,I bought the book 5 days ago.,I have had the book for 5 days.,例如：,arrivebe here begin(start)be on,die be dead come backbe back,leave be away from ill(sick,asleep)be ill(sick,asleep),get upbe up go out be out,finish be over put on wear 或be on,open be open join be in或 be a member of,close be closed go to schoolbe a student,borrow keep buy have,catch(a cold)have(a cold)get to know know,begin to studystudy come to workwork,等,如,：He has been a soldier for three years.他参军三年了。,His father has been dead for two years.他父亲去世二年了。,The film has been on for ten minutes.电影已开始十分钟了。,We have studied English for three years.我们(开始)学英语已三年了。,（,7,）,二者引出的时间状语往往用,how long,提问。,How long have you had this book?,这本书你买多久了,?,For a week./Since a week ago.,买一周了。,How long have you had your bike?,Ive had it for about two years.,How long have you studied at this school?,How long have you studied English?,How long have you known your best friend?,4.How long have you lived in this place,？,5.How long have you used this book?,1.Work in pairs.Ask and answer the,questions.,2.Complete the questionnaire about,healthy living.Use,since,or,for,where,necessary.,Healthy Living Questionnaire,What kind of exercise do you do?,_,2.How long have you done this kind of exercise?,_,_,I walk to school and I play football.,I have walked to school since I was six and I have played football for three years.,3.Do you play in a school sports team?,_,4.If yes,how long have you played in the,team?,_,_,5.Do you have a healthy diet?,_,6.If yes,when did you start having a healthy,diet?,_,_,Yes,I do.,I have played in the school football team for a year.,Yes,I do.,I have had a healthy diet for years since I was little.,1 I fell ill two days ago.,So youve _ ill for two days?,Thats right.,2 I saw the doctor three days ago.,So you havent _ her in the last,three days?,3.,Complete the sentences.,been,seen,3 Ill walk to school for the first time,tomorrow.,So youve never _to school,before?,4 I came into hospital two days ago.,So youve already _ in hospital,for two days?,5,How long _ you _ a,headache?,Oh,it began about two hours ago.,walked,been,have had,For a long time John did not feel(1)_.He often had(2)_ and colds.He went to see a doctor.The doctor told him to take more(3)_ and stop eating(4)_.,4,.,Complete the passage with the words,and expressions in the box.,cold coughs exercise fast food,stomach ache weak well,well,coughs,exercise,fast food,So he started riding a bike to school.At first,he felt tired and(5)_.Then he got fitter and started enjoying it.Since he started riding a bike,he has not had a(n)(6)_ and he has not had a(n,)(7)_ since
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