新外研 八年级下册 M U.pptx

4Unit 3 Language in use.第1页/共48页To summarise and consolidate the use of the present perfect tense together with since and forTo be able to understand learning materials on healthTo be able to carry out a survey on healthy living with the help of othersTeaching aims第2页/共48页 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.第3页/共48页 现在完成时（三）现在完成时（三）当表示动作已经充成并对现在有一定影响当表示动作已经充成并对现在有一定影响时，我们一般用现在充成时。同时，可分时，我们一般用现在充成时。同时，可分别别 用用just,already或或yet加以强调或说明。加以强调或说明。其结构也是：其结构也是：have/has+动词的过去分词动词的过去分词.常用的时间状语有常用的时间状语有:already,just,一般置于一般置于have/has 之后，之后，用用于肯定句中于肯定句中；在否定句中在否定句中则要用则要用yet 表示表示“还，未还，未”。Grammar第4页/共48页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19991999年开始学英语。第5页/共48页（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。第6页/共48页如：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。第7页/共48页（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。第8页/共48页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屮国。This is the third time that I have seen Karen.这是我第三次见到Karen。第9页/共48页（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.()第10页/共48页实义动词分为实义动词分为:1)瞬间动词瞬间动词 2)延续动词延续动词 瞬间动词joinbegin/startborrowfinish/endarrive/comeleavediebuy第11页/共48页瞬间动词瞬间动词持续动作状态持续动作状态die be over leaveborrow/buy arrive begin end/finish join marrykept/had be away be in be on(上演）上演）be married be in be dead含有for、since 的现在完成时，要是有瞬间动词，要把它变成持续动作状态第12页/共48页非延续性动词和延续性动词的转换leave be away borrow keepbuy have begin/start be ondie be dead finish-be overopen sth keep sth open fall ill be ill 第13页/共48页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,第14页/共48页 get to/arrive/reach be(in),leave be away from,get to know know,go(get)out tie out，put onwear,catch a cold have a cold,get marriedbe married 等。第15页/共48页1.他的爷爷已经去世他的爷爷已经去世2年了。年了。2.Nick 参军参军3年了年了.3.他离开深圳好长时间了。他离开深圳好长时间了。4.这本书我已借了这本书我已借了4个月了个月了.His grandpa has died for 2 years.Nick has joined the army for 3 years.He has left Shenzhen for a long time.I have borrowed the book for 4 months.XXXX注意注意:瞬间动词瞬间动词不能不能和时间段连用和时间段连用.has been dead for 2 years.has been in the army for 3 years.has been away from Shenzhen for a long time.have kept the book for 4 months.第16页/共48页（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。第18页/共48页How long have you had your bike?Ive had it for about two years.1.How long have you studied at this school?2.How long have you studied English?3.How long have you known your best friend?4.How long have you lived in this place5.How long have you used this book?1.Work in pairs.Ask and answer the questions.第19页/共48页2.Complete the questionnaire about healthy living.Use since or for where necessary.Healthy Living Questionnaire1.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.第20页/共48页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.第21页/共48页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.beenseen第22页/共48页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.walkedbeenhave had第23页/共48页 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 wellwellcoughs exercisefast food 第24页/共48页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 he stopped eating fast food.weak coldstomach ache 第25页/共48页Doctor:(1)_ Bill:Well,Ive got a pain in my back.Doctor:(2)_ Bill:For about two weeks.5.Complete the conversation with the sentences in the box.Can I help you?How long have you been like this?Thats it.Whats wrong with me?Can I help you?How long have you been like this?第26页/共48页Doctor:Let me have a look.Where do you work?Bill:I work in an office.Doctor:Do you play computer games?Bill:Yes,a lot.I usually play computer games late at night.Doctor:(3)_ Bill:(4)_Thats it.Whats wrong with me?第27页/共48页Doctor:Well,you spend too much time in front of the computer.Bill:What can I do?Doctor:Stand up and do some exercise from time to time.Dont play computer games too much.Now work in pairs.Read out the conversation.第28页/共48页What can I do?I would like to take more exercise,but I have not found a favourite sport.The coach has not chosen me to play in the football team because I am not fit,and I am not a good player.I went running in the park to get fit,but I felt lonely and sad.What can I do?Alan6.Read the passage and match the problems with the advice.第29页/共48页 I went to school by bus in the past,and I did not feel fit.So last month I decided to take more exercise and started walking to school.I have walked to school for three weeks now.I am getting a lot fitter and I feel healthier.The problem is,all my friends take the bus to school and I do not have anyone to talk with on the way!What can I do?Barbara第30页/共48页 I love playing computer games with my friends.I also watch TV and eat fast food.I know it is not healthy and sometimes I get a stomachache.The problem is,I do not know how to stop and become fitter and healthier.I do not want to spend all my life sitting in a chair.What can I do?John第31页/共48页Have you tried this?a)Walking has helped you get fitter,so why not ask a friend to walk to school with you?b)How about asking a friend to go running with you?Have you practised to improve your football skills?第32页/共48页Work in pairs.Do you have similar problems?Talk about your advice.c)Why not turn off the computer and TV and join a sports club?Go with your friends so that you will still spend time together.And how about choosing some healthy food to eat?Alan b;Barbara a;John c第33页/共48页The man feels(1)_.He is hot and(2)_.He has been like this for about(3)_.He has got a temperature and a(4)_ but has not got a(5)_ or a cough.The doctor suggests he should(6)_ and take the medicine(7)_ a day.And he should(8)_ until he feels better.7.Listen and complete the passage.awful very tired three days headache stomach ache drink more water three times stay in bed 第34页/共48页 Man:Good morning,Doctor.Doctor:Hello.How can I help you?Man:I feel awful.I feel hot and Im very tired.Doctor:How long have you felt like this?Man:For about three days.Doctor:Ill take your temperature.Oh,your temperature is quite high.Ill just check your heart.all right,that sounds OK.Have you got a headache or a stomach ache?Tapescript第35页/共48页 Man:Ive got a headache all the time.But I dont have a stomach ache.Doctor:Have you got a cough?Man:No.Whats the matter with me?Doctor:I dont think its serious.Its probably just a cold.You should drink more water,and take this medicine three times a day.Man:OK.Can I go to work today?Doctor:No,I think youd better stay in bed until you feel better.Man:Thank you,doctor.第36页/共48页The World Health Organization(WHO)was set up in 1948 to help ordinary people all over the world,especially in developing countries.The World Health Organization第37页/共48页It cures,prevents and controls serious diseases such as malaria,and educates people about how to protect their health.The WHO has helped millions of people by training doctors and nurses,and by teaching mothers how to take better care of their children.第38页/共48页8.Work in groups.Do a survey to find what exercise your group members do and the effects.Doing a survey to find the most suitable exerciseWhat exercise do you often do?When did you begin doing it?How often do you do it?Is it good for you?How do you feel after you do the exercise?第39页/共48页9.Decide what exercise is the most suitable for you.10.Talk about your decision and your reasons with the rest of the class.第40页/共48页1.We have worked in this company since we _to this city.A.move B.have moved C.moved D.are moving2._have you stayed in the garden?A.How often B.How long C.How far D.How manyExerciseCB一、单项选择题。第41页/共48页3.He has taught at this school _2005.A.since B.in C.forD.on4.The dog _for seven days.A.died B.has died C.has been dead D.dies5.Lucy _ after her grandma since two years ago.A.looks B.looked C.will look D.has lookedACD第42页/共48页1.I have been here _five months ago.2.He has been a soldier _ about two months.3.Great changes have taken place _ you left.4.His grandpa has been dead _ ten years.5.I have studied English _ I was 12 years old.6.It is two years _ I became a postgraduate student.sinceforsinceforsincesince二、选择for或since填空：第43页/共48页1.Jim is in Japan.He arrived there three days ago._2.They are very hungry.Their last meal was ten hours ago._ 三、Rewrite the sentences using for or since.Jim has been in Japan for three days.They are very hungry because they havent had their meal for ten hours.第44页/共48页3.I have a camera.I bought it in 2009._4.I know Anna.I first met her three years ago._5.Linda is ill.She became ill on Monday._I have had a camera since 2009.I have known Anna for three years.Linda has been ill since Monday.第45页/共48页HomeworkTry your best to master what you have learned in this module and preview the next module.第46页/共48页第47页/共48页谢谢您的观看！第48页/共48页