Unit8HaveyoureadTreasureIslandyet(语法现在完成时)课件

1、Welcome to our class 本网站版权所有第1页，共16页。现在完成时态present perfect 本网站版权所有第2页，共16页。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 本网站版权所有第3页，共16页。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.不规则动词现在完

2、成进行时过去延续到现在还持续s/were+v-in1.v. 2.v+s/es（三单现） am/is/are+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-inghave/has been v-ing 本网站版权所有第4页，共16页。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

3、 held a sports meeting last week.5.Are you helping your mother ？6.I have been sitting here for an hour.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现在完成进行时 本网站版权所有第5页，共16页。现在完成时1.过去发生的动作对现在造成的影响或结果。和already，never,ever,just,before,yet等状语连用。2.过去已经开始，持续到现在的动作或状态，常与for或since引起的一段时间状语连用。动词构成：have/has+v过去分词have breakfastI ha

4、ve just had my breakfast.(现在我不饿)Im not hungry nowmoved herein 2004I still live hereI have lived here for three years.I have lived here since 2004/three years ago. nowpast 本网站版权所有第6页，共16页。 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? 本网站版权所有第7页，共16页。翻译. ( English =Chinese)finish,home

5、workI 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。？ 本网站版权所有第8页，共16页。have(has)been和 have(has)gone 的区别Where has he been?Where has he gone?have(has)been:表示曾经到过某地，人现在不在某地。have(has)gone：表示已经去过某地了，人现在在去某地的路上或已经在某地了。翻译：他去哪儿的

6、？（他已经回来了）他去哪儿了？（他不在这里）练：She has been to Shanghai.She has gone to Shanghai. 本网站版权所有第9页，共16页。她成为一名护士已经三年了。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

7、I came to the school.I have just lost my history book.know, knew ,knownteach,taught,taughtlose,lost,lostChinese=English 本网站版权所有第10页，共16页。Pay attention 注意1.现在完成时句中常见的时间状语A.表示从过去一直持续到现在,不能是具体过去时间 ( 1).for+表示一段时间的短语 ( 2).since+表示过去时间点的词语 ( 3).since+表示过去时间的时间状语从句eg.I have been a teacher _ a year. He has

8、 been at this school _ 1992. We have learned 1,000 English words _ we came to this school.forsincesince B.just,already,yet,before/ ever,never 有此类副词时,常强调动作完成,不强调动作的持续. eg.Have you _been to Japan? I have _ finished my homework. I have finished my homework _. I havent finished my homework _.everjustalr

9、eadyyet 本网站版权所有第11页，共16页。2.区分短暂性动词与持续性动词. 表示短暂性(瞬间性)的动词在现在完成时的句中不能和一段时间连用.短暂性的动词如：come，go，join，leave，buy等，在完成时态中不能与for,since短语或How long等引起的时间状语连用。I have bought this pen for two months.I have had this pen for two months.How long have you _ this pen.hadThe teacher has left.The teacher has been away fo

10、r half an hour .(be away) 本网站版权所有第12页，共16页。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 long have been at this school? Since two years.beenbeenbeenagoFor 本网站版权所有第13页，共16页。改写句子Homework：改写句子

11、1.My father came back from the bookshop just now. My father _ just _ _ the book shop.2.He began to learn Chinese in 2001. He _ _ Chinese since 2001.3.The film began two minutes ago. The film _ _ _ since two minutes ago.4.He has had the motorbike for two years. Its two years _he _ the motorbike. He _ the motorbike two years _. Two years _ _ since he _ th