现在完成时和过去式比较

1、目前完成时与一般过去时态比较the present perfect tense the simple past tense，1，目前完成时为1。结构：主语(助动词)have/has过去分词表示过去发生或完成的动作对现在的影响或结果2。可以与不确定的时间副词结合使用，例如just、already、yet、ever、recently、sofar等。例如，Weve Done A lot of Work on it，But We Havent Finished Yet.3。表示从过去的某个时间点开始，动作或状态一直持续到现在，并且可以与由for、since等表示的副词持续一段时间。Ive lost 7

2、 kg in the last two months。4 .在发言之前至少发生了一次的行为，现在是twice、ever、never、three times示例：ive never seen her as angry as that，so I kept quiet.tips e，arrive，he has joined the army for three years。(false)he has been a soldier for three years。(right)he has been in the army for three years示例：I havent heard f

3、rom you for weeks，translation，我完成了作业。I have finished my homework already . 2 .他在这里工作了5年。(work)he has worked here for five years。2 .通常是过去，1。结构：主语动词过去式2。表示过去某个时间点发生的动作或存在状态，例如，we soon became good friends . two years ago，she bought an expensive bike.3 .表示过去一小时内连续发生的一些动作。示例：at four oclock，Polly left wor

4、k and stepped out into the fog 4。表示过去时间内经常或习惯的动作或状态。例如： after lunch，we usually played on the school field .北距is impossible。(写以下动词的过去式)workrain watch wash 2。trip drop stop plan shop 3。cry copy try study 4。stay enjoy play destrop Like 6。come write fly buy，通常在过去为came wrote flew bought，1 .动词ed，2，不规则的变化需

5、要强烈的记忆，我昨天去看了电影。I went to a movie yesterday。2.我去年住在纽约。I lived in New York last year。3.我刚才没吃苹果。I didnt eat an apple just now。4.我上个月买了一部新手机。I bought a new mobile phone last month . 5 .我前天参观了博物馆。I visited the museum the day before yesterday。翻译，概念：通常表示过去某个时间点发生的动词或存在状态，过去频繁或重复的动作。E.g. He came here yeste

6、rday。当前完成时过去的行为(或状态)对当前的影响和结果e.g. He has broken his bottle。通常是过去和现在完成时的差异：1)徐璐配置其他Tom went to London last year . lily has been to London twice，通常强调动作发生在过去的某个时间点，与现在没有联系。e . g . we havent seen him since last year我们从去年开始就没见过他。We didnt see him last year。我们去年没见过他。Who has opened the door？谁开的门？Who opened

7、the door？谁开的门？指向过去与现在无关。现在门是关着还是开着，没有说明。)Have you had your lunch？你吃午饭了吗？你的意思是你现在不饿吗？是，I have。吃了。(也就是说，我现在饱了，不要再吃了。)When did you have it？你什么时候吃的？说话者关心的是“吃”发生的时候。)，2)用法不同。I had supper an hour ago我一小时前吃的晚饭。I have just had supper我刚吃了晚饭。He was a teacher then他当时是教师.He has been a teacher since then他从那时起担任教

8、师.(她现在还是教师)，通常是过去的时间副词：yest day，ounces，lastweek，ago、in 1980、in October、just now等具体的时间状语。现在完成的时间副词：for，since，sofar，ever，never，just，yet，till，up to now，always等不确定的时间副词。一般过去和现在完成时的差异：3)使用的时间状语不同。the children went to the zoo last Sunday上星期天，孩子们去了动物园。I havent read the book before我以前从未看过这本书。They lived here

9、 in 1980他们1980年住在这里。通常过去常和特定的时间副词一起使用，现在经常和模糊的时间副词一起使用，或者没有时间副词。，last Sunday，correct the passage :last Sunday，Ted and his father are at home . they movd to a new house . his father want Ted to put、moved、wanted。Brought，were，exercises for the present perfect tense 3360，7。is Tom doing his homework？No，h

10、e _ _ _ _ _ _ _ _ _ _ _ his homework already。(finish) 8。do you know miss king？No，but I _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ herbefore。(hear of) 9 .what about the film？Sorry，I dont know . I _ _ _ _ _ _ _ _ _ _ _ it yet。(see) 10。_ _ _ _ _ _ _ _ No，never。(go) 11。how does he get on with his classmate？Oh，_ _ _

11、_ _ _ _ _ _ _ _ a lot these days。(变更)12。help yourself，please.no. Has finished，before，have heard of，yet，havent seen，ever，never，have，before.-when _ _ _ _ _ _ _ _ he _ _ _ _ _ _ it？-yesterday.4.-I _ _ _ _ _ _ _ _ _ _ _(see)the film chicken run.-where and where -lastweek.5.-_ _ _ _ _ _ _ you _ _ _ _ _(s

12、ee)the film last night？-no，I _ _ _ _ _ _ _ _(see)it for several times . 6.-_ _ _ _ _ _ _ _ _ you _ _-notyet . but I _ _ _ _ _ _ _ _ _ _ _(return)it this AFS.7 .is Tom doing his homeworn No，_ _ _ _ _ _ _ _ _ _ his homework already。(finish) 8。do you know miss king？No，but I _ _ _ _ _ _ _ _ _ _ _ _ _ _

13、_ herbefore。(hear of) 9 .what about the film？Sorry，I dont know . I _ _ _ _ _ _ _ _ _ _ _ it yet。(see) 10。_ _ _ _ _ _ _ _ No，never。(go) 11。how does he get on with his classmate？Oh，_ _ _ _ _ _ _ _ _ _ _ a lot these days。(变更)12。help yourself，please . no . Further exercises 3360，1 .I am busy these day . I _ _ _ _ _(not go)to the cinema for weeks . 2 . the boy is happy because he _ _ _ Out all the newsppygreat changes _ _ In our country since 1949.5。miss Jane _ _ _ _ _ _ _ _ _ _(teach)us last year . she _ _ _(te