新目标英语初中语法：现在完成时态.ppt
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,已学习过的时态,1.v.2.v+s/es（三单现）,am/is/are+v-ing,1.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,have/has been v-ing,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 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,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 breakfast,I have just had my breakfast.,(现在我不饿),Im not hungry now,moved herein 2004,I still live here,I have lived here for three years.,I have lived here since 2004/three years ago.,now,past,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?,翻译.(English=Chinese),finish,homework,I have finished my homework.,He has finished his homework.,havent,Has he,Yes,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。,？,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？（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.,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 I came to the school.,I have just lost my history book.,know,knew,known,teach,taught,taught,lose,lost,lost,Chinese=English,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 been at this school _ 1992.We have learned 1,000 English words _ we came to this school.,for,since,since,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 _.,ever,just,already,yet,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.,had,The teacher has left.,The teacher has been away for half an hour.,(be away),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.,been,been,been,ago,For,改写句子,Homework：,改写句子,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 _ the motor bike,has,returned,from,has,learned,has been on,since,bought,bought,ago,has passed,bought,Thank you Bye-bye!,思考：,现在完成时与现在完成进行时的区别,
