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1、,Present perfect tense,已学习过的时态,1.v原形 2. v三单,am/is/are+v-ing,1.will/shall+v原形 2.am/is/are going to +v原形,1.v-ed（规则动词） 2.不规则动词,was/were+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 la
2、st week.5.Are you helping your mother .,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,现在完成时,1.过去发生的动作对现在造成的影响或结果。,2.过去已经开始，持续到现在的动作或状态,动词构成：have/has+v过去分词,had breakfast,I have just had my breakfast.,(现在我不饿),Im not hungry now,moved here in 2000,I still live here,I have lived here since2000.,now,have / has + v 过去分词,助
3、动词,否定,havent hasnt,疑问,Have you? Has he?,现在完成时动词构成:,动词的过去分词形式,1.规则动词2.不规则动词,finish-finished-finished live-lived-lived carry-carried-carried stopstopped-stopped,Eg.,gowentgone see-sawseen forgetforgot-forgotten,现在完成时的时间状语,常与 already, never, ever, just, yet, before, up to now, so far, for the last few
4、weeksthese days, since for a long time 连用,短暂性动词在肯定句、疑问句中不能与时间段连用，这些动词是：become, begin, buy, borrow, arrive, come, die, fall, finish, go, join, leave, marry等。 为了表述这种意思，我们常用相应的延续性动词来代替非延续性动词。 电影开始五分钟了。 The film began five minutes ago.The film has been on for five minutes.,注意: 非延续性动词与现在完成时,become be, be
5、gin have , borrow keep, buy have, come (go, arrive, get) be here/there/in，die be dead, finish be over, join be in （be a member of ）leave be away ( from),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. The dog has died for a
6、 month. He has gone to Shanghai twice. How long have you been at this school?Since two years ago .,been,been,been,For,been dead,have been 与have gone 的用法比较,have been to 意思是“到过，去过”，表示曾经到过某处，但现在人不在那儿。 have gone to 意思是“去了”，表示已经去了某地，现在人可能在去的途中或已在那儿了。 have been in 意思是“呆在某处一段时间了”,Has she ever been to Nanji
7、ng? 她曾去过南京吗？You have never been there, have you? 你以前从未去过那儿，是吗？I have been to Guiling ,I went there last year. 我去过桂林，我去年去的。She has gone to Nanjing. 她已经去南京了。,与一般过去时的用法比较,一.现在完成时和一般过去时都是说过去的事情，但现在完成时注意的不是事情本身，而是强调事情与现在保持的某种密切联系（如现在的结果，影响,一直延续到现在等）;而一般过去时，则只讲述发生在过去的动作和事情与现在没有关系。,eg：He has bought an Engl
8、ish-Chinese dictionary. 他已经买了一本英汉字典。He bought an English-Chinese dictionary. 他曾买过一本英汉字典。, 第一句用现在完成时时态，想表达意为：“He bought an English-Chinese dictionary. And he still has it” “过去他买了一本英汉字典，现在他还有这本字典” 。,第二句用过去时只叙述过去他买过一本英汉字典这一事实，至于现在他是否有这本字典并未强 调说明。,二当有一个表示过去某一特定时间的状语时，不用现在完成时，而用一般过去时:,eg: I saw the film
9、on television yesterday .,但since(自以来)+某一过去时间或叙述过去事情的从句总是与现在完成时连用。,eg： They have known each other since 1950 .,Since he was a child ,he has lived in England.,三常与一般过去时连用的典型的表示过去时间的状语:,yesterday(昨天), the day before yesterday(前天), just now(刚才)， 时间+ ago, last +时间 等;,eg: The plane took off ten minutes ago
10、.,We finished our task last week .,practice,当堂巩固,How long have you _ the magazine? About a week. (2008 济宁) A found B borrowed C received D had _ you _ the film Harry Potter 5? Not yet. I will see it this Sunday.(2008重庆) A Did, see B Are, seeing C Have, seen D Do, see,当堂巩固,How is Ann? I _ her for a l
11、ong time. A dont see B wont see C didnt see D havent seen (2008 河北) Hasnt Betty come yet? No, and I _ for her for nearly 2 hours. A wait B waited C have waited D had waited,当堂巩固,Is Mr Baker at home? (2008 辽宁省十二市) Sorry, he isnt in. He _ Dalian for vacation. A has gone B went C is going D goes Mr Zha
12、ng is a teacher of rich experience. He _ English for 20 years. (2008 大连) A has taught B will teach C teaches D taught,当堂巩固,-How many times have you _ to Xian? -Three times. (2008天水） A been B went C gone D go I wont forget my teacher because she _ so kind to me since I came to this school. A has been
13、 B will be C was D is (2008 陕西),当堂巩固,-I will return the book to Mary, but I cant find her anywhere. -she _ the teachers office. You can find her there. A has left B was away from C has gone to D has been to You have _ my dictionary for two weeks. Sorry, I will give it back to you right now. A lent B
14、 borrowed C kept,当堂巩固,-_ you _ out the problem, Sam? -Not yet,but I am going to. (2008 咸宁) A Did, work B Are, working C Have, worked D Will, work -What are you going to do this Saturday? -I _ yet. (2008烟台) A haven decided B wont decide C am not decided D didnt decide,当堂巩固,How long _ the film _ when
15、you got there? A has begun B had begun C has been on D had been on (2008 罗田) Mr Green _ Beijing since three years ago. A has come to B went to C had lived in D has been in (2008 涿鹿),当堂巩固,He _ our school for two weeks. (2008 青海） A left B has left C has been away from - My father _Shanghai with my(2008 常州) grandparents. -Really? _ will they come back? A has been to, How soon B has gone to, How soon C has been to , How long D has gone to, How long,
