Welcome to our class.

Presentation on theme: "Welcome to our class."— Presentation transcript:

1 Welcome to our class

2 现在完成时态 present perfect

3 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

4 已学习过的时态 1.v. 2.v+s/es（三单现） 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 现在完成进行时 过去延续到现在还持续 s/were+v-in 1.v. 2.v+s/es（三单现） 1.v-ed（规则动词） 2.不规则动词 1.will/shall+v. 2.am/is/are going to +v. am/is/are+v-ing was/were+v-ing have/has been v-ing

5 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

6 现在完成时 动词构成：have/has+v过去分词 moved here in 2004 have breakfast
I still live here I’m not hungry now 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。 past now I have just had my breakfast. (现在我不饿) 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。 I have lived here for three years. I have lived here since 2004/three years ago. 动词构成：have/has+v过去分词

7 现在完成时动词构成 have /has+v 过去分词 haven’t hasn’t 否定 助动词 Have you…? Has he…?
疑问

8 翻译. ( English ===>Chinese)
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。 finish, homework I have finished my homework. haven’t He has finished his homework. Has he ？ No ,he hasn’t. Yes,he has.

9 have(has)been和 have(has)gone 的区别
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： Where has he been? Where has he gone? 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.

10 Chinese==>English
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. know, knew ,known I have known Lilei since five years ago. I have already posted the photos to him. teach,taught,taught He has taught me since I came to the school. lose,lost,lost I have just lost my history book.

11 Pay attention 注意 for since since B.just,already,yet,before/ ever,never
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 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. ( 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.Have you _____been to Japan? I have _____ finished my homework. I have finished my homework ______. I haven’t finished my homework ____. ever for 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. just already since yet since

12 I have bought this pen for two months.
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. (be away) The teacher has been away for half an hour .

13 改错 How long have you become a league member？ been
For more than one year. Have you arrived here since last night? Yes，you’re right. He has gone to Shanghai twice. How long have been at this school? Since two years. been been been ago For

14 Homework： 改写句子 改写句子 has returned from has learned has been on since
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. It’s 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

15 Thank you Bye-bye!

16 思考： 现在完成时与现在完成进行时的区别