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1、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 goi
2、ng 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
3、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 here in 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,havent hasnt,疑问,Have you? Has he?,翻译. ( English =C
4、hinese),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
5、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
6、 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
7、. 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 _.
8、,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 awa
9、y 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
10、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,