新目标八年级英语(下)现在完成时课件

1、现在完成时态present perfect现在完成时态present perfect时态 （tense）不同时间发生的动作， 动词要用不同形式。已学习过的时态时态 （tense）不同时间发生的动作，已学习过的时态已学习过的时态名称时间动动词形式一般现在时平时，经常1.v原形 2.v+s/es（三单现）一般过去时过去（与现在无关）am/is/are+v-ing一般将来时现在进行时即将，计划正在进行1.will/shall+v原形2.am/is/are going to +v原形过去进行时过去某一时间，在进行1.v-ed（规则动词）2.不规则动词1.v. 2.v+s/es（三单现） am/is/a

2、re+v-ing1.will/shall+v.2.am/is/are going to +v.1.v-ed（规则动词）2.不规则动词was/were+v-ing已学习过的时态名称时间动动词形式一般现在时平时，经常1.v原判断下列句子的时态1.She works in a factory.2.I was doing my homework at this time yesterday.3.We are going to have a picnic this Sunday.4.They held a sports meeting last week.5.Are you helping your m

3、other ？一般现在时过去进行时一般将来时一般过去时现在进行时判断下列句子的时态1.She works in a fac 现在完成时动词构成 have /has+v 过去分词 助动词否定haventhasnt疑问Have you?Has he?助动词否定havent疑问Have you?1. 现在完成时表示过去发生或已经完成的某一动作对现在造成的影响或结果。(汉语中常用“已经”、“过”、“了”等表达）通常与表示包括现在在内的时间副词 just，already, before, yet, never, ever 等状语连用。例如： I have never heard of that befo

4、re. Have you ever ridden a horse? She has already finished the work. Have you milked the cow yet? Yes, I have done that already. Ive just lost my math book. 用法：1. 现在完成时表示过去发生或已经完成的某一动作对现在造成的present(now)futurePast 现在完成时( present perfect tense)learn English present(now)futurePast 现在完成时le2.现在完成时表示过去开始动

5、作或状态一直持续到现在,而且有可能持续下去。有延续的时间状语如for、since 等动词要用延续性的）一段时间的表达方法有两种:for: +一段时间 for a year for two weeks for three years 过去的某一时刻, since nine since last week 一般过去时态的时间状语从句 since you came since you got home.注意:for 和since 所引导的时间状语都表示一段时间.He has been away since last week.He has been away for one week.对划线部分提问

6、都用How longSince2.现在完成时表示过去开始动作或状态一直持续到现在,而且有可用for 或since填空Mr. Brown has had his TV _ 15 years. Ive taken driving lessons _ last month. My sister has had her cell phone _ a month . My friends havent visited me _ my birthday. We havent used our car _ a long time . She hasnt had a good cup of coffee _

7、years. Tom has worn glasses _ he was 7 years old. forsinceforsinceforforsince用for 或since填空Mr. Brown has had现在完成时与瞬间动词 瞬间动词可以用于现在完成时，但不能和表示一段时间的状语连用。如可说“He has left.”但不能说“He has left for three years.” 如果要表达“他已走了三年了”可用以下几种表达法：一、用ago,使用一般过去时。 He left here three years ago.二、用“It is +一段时间since 一般过去时从句 ”

8、It is three years since he left here.三、用“ 一段时间has passed + since + 一般过去时从句” Three years has passed since he left here.现在完成时与瞬间动词 瞬间动词可以用于现在完成 瞬间动词与延续的动词转化1.直接转化成延续性动词 buy catch (get) a cold borrow come/go /become have have a coldkeepbe、 He has been away from here for three years. 五、 He has been away

9、 from here since three years ago.将结束性动词转成延续性动词 瞬间动词与延续的动词转化1.直接转化成延续性2.转换成be+名词 join the army join the Party go to school be a soldier be a Party memberbe a student3转换成be+形容词或副词 die finish begin leave fall sleep close openbe deadbe overbe onbe awaybe asleep be closedbe open2.转换成be+名词be a soldier be

10、a 4.转换成 be+介词短语 go to school join the army.我们买这本书三年了.We have had the book for three years.他感冒三天了.He has had a cold for three days.We bought the book three years ago. He caught a cold three days ago.一般过去时态和现在完成时态可以构成同义句be in schoolbe in the army4.转换成 be+介词短语.我们买这本书三年了.We ha自从上星期以来,我就借了这本书. I have kep

11、t the book since last week.我成为一个学生两年多了. I have been a student for over two years. I borrowed the book last week.I became a student two years ago. Mr Black死了三年了。Mr Black has been dead for three years.Mr Black died three years ago.自从上星期以来,我就借了这本书. I have kep小明参军半年了。Xiao Ming has been a soldier for hal

12、f a year.Xiao Ming joined the army half a year ago.我们上了8年学了。We have been students for eight years.下课10分钟了 The class has been over for ten minutes.9.电影开始了一小时了 The film has been on for an hour.小明参军半年了。Xiao Ming has been a 判断正误I have bought this pen for two months.I have had this pen for two months.How

13、 long have you _ this pen.hadThe teacher has left for half an hour.The teacher has been away for half an hour .判断正误I have bought this pen for改错:How long have you become a league member？ For more than one year.Have you arrived here since last night? Yes，youre right.He has gone to Shanghai twice.How l

14、ong have you been at this school? Since two years.beenbeenbeenagoFor 改错:How long have you become a 翻译. ( English =Chinese)finish,homeworkI have finished my homework.He has finished his homework.haventHas heYes, he has.No ,he hasnt.1.翻译这两句话；2.第一句变成否定句；3.第二句变成一般疑问句并回答。？翻译. ( English =Chinese)fini她成为一名

15、护士已经三年了。我五年前就认识李雷了。那些相片我已经寄给他了。（post）我来到这个学校后，他就一直教我。我刚丢了我的历史书。She has been a nurse for three years.I have known Lilei since five years ago. I have already posted the photos to him.He has taught me since I came to the school.I have just lost my history book.know, knew ,knownteach,taught,taughtlose,l

16、ost,lostChinese=English她成为一名护士已经三年了。She has been a nu 三个重要句式have / has been (to) “曾经去过某地”， 说话时此人不在那里，已经回来。侧重指经历。have / has gone (to) “已经去某地了”，说话时此人可能在路上或已到那里，不在这里。 试比较： He has been to Beijing. 他曾去过北京。 （人已回来，可能在这儿） He has gone to Beijing. 他已经去北京了。 （人已走，不在这儿）。去一段时间用have/has been in He has been in the

17、USA for 3years. 三个重要句式选择been , gone填空.1.Jim is on holiday . He has _ to Italy .2. Hello ! I have just _ to the shops . I have bought lots of things .3.Alice is not here at the moment . She has _ to the shop to get a newspaper .4.Tom has _ out . He will be back in about an hour .5.“ Are you going to

18、the bank ?” “No , I have already _ there .”6. He went to the USA last year.He has _there for a year.gonebeengonegonebeenbeen选择been , gone填空.gonebeengonego一般过去时与现在完成时之比较 1）一般过去时单纯叙述过去的事情有明确的过去时间状语。而现在完成时强调的是现在的情况，不能和过去时间连用，when 开头的问句没有现在完成时。 2）现在完成时可以跟表示包括现在在内的时间状语连用。now ,today , this morning/month/y

19、ear(今天早上/这个月/今年)in the past few years(在过去的几年中)during the last 10 years (在过去10年中）recently(最近) so far (到目前为止)up to now(到目前为止)一般过去时与现在完成时之比较 1）一般过去时单纯叙述过去Exercises( )1.Youve never seen such a wonderful film before, _? A. havent you B. have you C. do you D. dont you( ) 2. I have watched the game. When _

20、 you _ it? A. have; watched B. do; watch C. did ;watch D. will; watch( )3. Mr. Green _ in China since five years ago. A. lived B. has lived C. lives D. is going to live( )4. His grandma _ for two years. A. died B. has died C. was dead D. has been dead BCBDExercises( )1.Youve nev( )5. Where is Han Me

21、i now? She _ to Shanghai. She will be back in two days. A. has gone B. has been C. goes D. had gone( )6. _ you _to the United Stated ? No, never,but I went to Canada a few years agoA. Have; been B. Have; gone C. Did; go D. Do; go( )7. You havent changed your mind,_?A. do you B. are you C. have you D

22、. did you( )8. How long have you _ the football team of the school?A. played B. been at C. joined D been on AACD( )5. Where is Han Mei ( )9. Where have you _ these days? I have _ to Kunming with my friends.A been , gone B been , been C gone , been D gone, gone( )10. How long have you _ this book?A.

23、bought B. borrowed C. had D. lent( )11. Excuse me, _ you seen the film yet? Yes, I _ it last night.A have, see B have, have seen C have, seen D have, saw( )12. He has never ridden a horse before,_? A. is he B. isnt he C. hasnt he D. has heBCDD( )9. Where have you _Homework:抄写动词以及过去式和过去分词。 1.be- e 3.

24、go- 4.do 5.have- 6.drink 7.give- 8. eat 9.know- 10.make 11.run- 12.say 13.see- 14.find 15.draw- 16.get 17.hear- 18.begin 19.buy- 20.leavewas/were -beencame-comewent-gonedid-donehad-haddrank-drunkgave-givenate-eatenknew-knownmade-maderan-runsaid-saidsaw-seenfound-founddrew-drawngot-gotheard-heardbegan-begunbought-boughtleft-leftHomework:抄写动词以及过去式和过去分词。was/we写出下列动词的过去式及过去分词1 become_-_2 break_-_3 bring _-_4 build_-_5 bite_-_6 catch_-_7 choose_-_8 cut_-_9 fall_-_10 fly_-_11 forget_-_12 grow_-_13 hit_-_14 hurt_-_15