现在完成时ppt精品课件

1、Present Perfect Tense，现在完成Present Perfect Tense时给定have/has过去分词(PP)，当前完成时的结构，Winter has already come，给定have/has过去主语是第三人称单数形式助动词，has，1，规则变化(过去分词与过去变化规则相同)，(1)，一般动词，词尾直接加“ed”即可。work-worked-worked visit-visited-visited(2)，以“e”结尾的动词仅在后缀中添加“d”，Live - lived，过去分词，(，study-studied-studied cry-cried-Stop-stopp

2、ed-stopped drop-dropped-dropped，2，不规则变化现在完成的时候强调强调过去的动作和现在的连接，即现在的影响和结果。have/has过去分词，1 .2 2.现在完成的时候强调过去和现在的关系，不能和具体的时间副词一起使用。3.一般来说，强调过去发生的事情或状态，不说明与现在的关系，而是与表示过去的具体时间一起使用。(last、ago、yesterday、etc .)、present、past、I have lived here for two years、I lived there 2 years通常表示过去的某个时间点发生了这种行为，与当前无关。他已经学英语五年了

3、。he has studied English for five years。他学了5年英语。He studied English for five years)，Ive lived here for ten years。我在这里住了10年。I lived here for ten years。我在这里住了10年。He has bought a house。他买了一栋房子。He bought a house ten years ago。他十年前买了房子。(还不清楚是否拥有这所房子。)一般在过去和现在完成的时候有明显的时间副词。Yesterday、Last year、in May、in May、

4、In的过去一年、two days ago、the other day、just now等是一般过去(表格过去的时间)、so far存在的时候、In/A:这本书我买了已经两年了。B:你在哪里买的？A:住在我们家乡。A:看过这部电影吗？B:本。A:什么时候见过。B:上星期天看的。a : the train has left。b : when did it leave。a : it left half an hour agage B :示例，I have.a : when did you see it？B :i saw it last Sunday，a : ive had the book for

5、two years . b : where did you buy it？A: I bought it in my hometown。目前不能和过去的时间副词一起使用。常用的时间副词包括，before，by now (sofar)，once，twice，just Never，all ones life，in/during/over the past/(常规)=Ive had breakfast already。注：中有already的句子在时态中不是全部现在完成。判断取决于那个词后面是否有动词的过去分词。eg . shes already eighty years old . it was a

6、lready very late。(2) yet，否定句：文章结束“尚未(无)”，I havent had breakfast yet。注意：在肯定语句中包含already或just，否定时，请在文章末尾添加yet。I havent seen the film yet。mother has just cleaned the house。mother hasnt cleaned the house yet。I have already seen the film肯定/疑问句：文章中的“一次”，ive ever been to Beijing . have you ever been to Bei

7、jing？(never，否定句：文章中“从来没有”Ive never been to Beijing。如果主：上有ever的肯定语句变为否定语句，则将ever改为never，he has ever mading No，never。He has never made meal。带有ever的一般疑问句在否定回答时是“no，never .”，(5)可以使用just，(6) before，句尾为“之前”的ive seen it before . has she ridden a bike before？exercises，1 . I _ _ _ _ _ _ _ _ _ _ _(have)lunch

8、already . 2 . has the train _ _ _ _ _ 3。tome _ _ _ _ _ _ never _ _ _ _ _ _(be to)China . 4 . the twin _ _ _ _ _ jun My father Juss.用法2:e . g . Kate has lived here for 3 years . Kate has lived here since 3 years ago。Kate has lived here since she came to China。动词使用连续性动词。经常与For或since引导时间一起使用。Since:(之后)

9、1)since时间点hehasstayedheresince 5 oclock . 2)Since期间ago hehasstayedheresince 5 hours ago . 3)Since子句(句子的谓语动词，since注意事项：对for或since引导时间副词的问题是_ _ _ _ _ _ _ _ _ _ _ _，1 .I have lived here for 10 years。how long have you Lou，2 .she has stood here since 2 hours ago。how long has she stood here？选择、how long、Fo

10、r和since以选择： 1。we havent seen each other _ _ _ _ a long time . 2 .填充his father has been in the party _ _ _ _ 20 minutes . 4 . Mr green hartybrown has had his TV _ _ _ _ _ 15 years . 7 . ive taken driving lessons _ _ _ _ _ _ lessons Friends havends、for、since、for、since、for、for、since She has bought the

11、computer for two years。had、please point out any mistakes and correct、how long have you come to to、been in、please point out、been in Please point out any mistakes and correct、I have got to Paris for one week、been in、Please point out any mister、been in、been a soldier、please point out any mistakes and correct、i. Been away for 3 days、please point out any mister，kepp Please point out any mistakes and correct，the film has begun for