过去完成时经典优质推荐课件.ppt

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1、复习用现在完成时填空1.I _ (be)to Beijing many times.2.Great changes _(take)place in Shanghai in the last ten years.3.The students_ already _(finish)their homework 4.The students _(learn)many words since they _(come)to our school.5.Tom _(stay)in Europe for two weeks.have beenhave takenfinishedhave learnedhas s

2、tayedhavecame现在完成时的构成主语+have/has+过去分词+过去分词的构成:1.规则动词的变化:a)一般情况下在动词后面加 ed work-worked play-playedb)以辅音字母加 y 结尾的动词,把 y 改 i 再加 edstudy-studiedcarry-carriedc)以重读闭音节结尾的,前面有单个元音字母时,双写辅音字母,再加 edstop-stoppeddrop-dropped2.不规则动词的变化见课本本课出现的主要动词的过去式和过去分词本课出现的主要动词的过去式和过去分词get got gottengo went goneleave left lef

3、tstart started startedbe was/were beentake took takenrun ran runsleep slept sleptoversleep overslept overslept1.cleaned the room at 5:002.closed the window at 5:20 nowhad cleaned theroomclosed the windowShe had cleaned the room before she closed the window.After she had cleaned room,she closed the w

4、indow.1.(first)ate an apple2.(then)slept nowhad eaten an applesleptShe had eaten an apple before she slept.After she had eaten an apple,she slept.2.(then)played soccer1.(first)did his homework now played soccerhad done his homeworkHe had done his homework before he played soccer.After he had done hi

5、s homework,he played soccer.Mary ran back to school because she had left her book in the classroom.What happened first?a.Mary ran back to school.b.Mary left her book in the classroom.I got homenow9:00pm8:00pmMy little brother went to bedBy the time I _,my little brother _ to bed.got homehad gone I g

6、ot to schoolnow8:158:00amThe teacher came into the classroomBy the time I _,the teacher _ into the classroom.got to schoolhad comeThe bus left at five to eight.I got outside at eight._.went outhadleft by:在在之前,不迟于之前,不迟于 by noon,by tomorrow,by last week,by 6:00,by the end of到到末为止末为止 by the time 到到的时候的

7、时候By the time I got home,By the time I came in,By the time I got to school,她出去的时候她出去的时候,公共汽车已经开走了公共汽车已经开走了.by the time 意思是意思是“到到的时候的时候”,相当于相当于 when引导的从句引导的从句,后接后接过去时过去时的句子时的句子时,主语的谓语动词用主语的谓语动词用had+过去分词,过去分词,也就是过去完成时也就是过去完成时.I got homenow9:00pm8:00pmMy little brother went to bedBy the time I got home

8、,my little brother had gone to bed.弟弟上床睡觉在我回家之前。弟弟上床睡觉在我回家之前。I got to schoolnow8:158:00amThe teacher came into the classroomBy the time I got to school,the teacher had come into the classroom.老师进入教室在我到达学校之前。老师进入教室在我到达学校之前。(first)did his homeworkb)以辅音字母加 y 结尾的动词,把 y 改 i 再加 ed过去完成时的否定形式:The bus left a

9、t five to eight.常用在宾语从句中:a)一般情况下在动词后面加 ed主要是表示在过去某个时间,或是动作之前主语+have/has+过去分词+常用在宾语从句中:After I got to the cinema,the filmin the morning before school?What do you usually doThe bus left at five to eight.在told,said,knew,heard,thought等动词后的宾语从句。By the time I got up,my brotherWhat do you usually do不规则动词的变

10、化见课本By the end ofhas learnedplay-playedthe policeman get to the shopTom run away By the time the policeman got to the shop,nowTom had run awayLiu Mei wake up the concert be over By the time Liu Mei woke up,the concert had been over.now2011 2012 learn 4000 English words By the end oflast yearBy the e

11、nd of last year,I had learned 4000 new words.The Past Perfect Tense过去完成时 过去完成时的构成助动词 had(用于各种人称和数用于各种人称和数)+过去分过去分词词 2.过去完成时态的含义:主要是表示在过去某个时间,或是动作之前已经发生或完成的动作.也就是:过去的过去过去的过去.过去完成时的判断依据过去完成时的判断依据:1.由时间状语来判定:一般说来,各种时态都有特定的时间状语。由时间状语来判定:一般说来,各种时态都有特定的时间状语。与过去完成时连用的时间状语有:与过去完成时连用的时间状语有:1)by+过去时间点 I had f

12、inished reading the book by nine oclock last night.2)by the end of+过去时间点.如 We had learned over 2000 English words by the end of last term.3)before+过去时间点.如They had planted 600 trees before last Friday.2.由由“过去的过去过去的过去”来判定。来判定。在状语从句中,在状语从句中,先先发生的动作用发生的动作用过去完成时过去完成时,后后发生发生的动作用的动作用一般过去时一般过去时。When I got t

13、o the station,the train had already left.After he had finished his homework,he went to bed.first first3.常用在宾语从句中常用在宾语从句中:当宾语从句的主句为一般过去时,且从当宾语从句的主句为一般过去时,且从句的动作先于主句的动作时,从句要用过句的动作先于主句的动作时,从句要用过去完成时。在去完成时。在told,said,knew,heard,thought等动词后的宾语从句。如:等动词后的宾语从句。如:He told me he had already finished his homewo

14、rk.I realized I had left my keys at home.4.体现在上下文中体现在上下文中 I didnt go to the movies yesterday because I had seen it twice.过去完成时的否定形式:过去完成时的否定形式:过去完成时的疑问形式:过去完成时的疑问形式:肯定回答:肯定回答:否定回答:否定回答:主语主语had nothadnt+p.p.+其它其它.Yes,主语主语+had.Had+主语主语p.p.+其它其它?No,主语主语+had+not.By the time I got up,my brother already (

15、have)his breakfast.2.By the time I got to the station,the bus already (leave).3.When I got to school,I realized I (leave)my bag at home.hadhadhadhadleftleftCan you do it?When she_,her brotherA点动作跟现在没任何关系She had to run to school quicklyTom _(stay)in Europe for two weeks.What do you usually do按要求改写下列句

16、子(5/1)We started to learn English 5 years ago.弟弟上床睡觉在我回家之前。get got gottenI _ this morning and I was late.What happened first?By the end of last year,the workers _(build)three highrises._ he had stood up,he cleaned the window.2)by the end of+过去时间点.When she _,she realized _By the time I _,my little br

17、other _ to bed.By the time she _,the bus _ So she had to_.When she _,she realized _句型转换 (10/1)past in the past4.He didnt go to the cinema because he _(see)the movie twice.5.By the end of last year,the workers _(build)three highrises.6.She _(work)on the farm for three years before she became a teache

18、r.had seenhad builthad worked按要求改写下列句子按要求改写下列句子(5/1)Tom had finished his homework before he watched TV.否定句:否定句:疑问句:疑问句:肯定回答:肯定回答:否定回答:否定回答:Tom hadnt finished his homework before he watched TV.Had Tom finished his homework before he watched TV?Yes,he had.No,he hadnt.句型转换句型转换 (10/1)He had stood up bef

19、ore he cleaned the window._ he had stood up,he cleaned the window.His father went to Beijing.He arrived home.(用用before合并句子合并句子)1.His father_ _ _ Beijing before he _ home.Afterhad gone toarrivedQuestions:1.What do you usually do in the morning before school?2.Do you like mornings?Why or why not?brush

20、 my teethtake a showerhave a breakfastgo to school按要求改写下列句子(5/1)A点动作跟现在没任何关系Mary left her book in the常用在宾语从句中:句型转换 (10/1)By the time Liu Mei woke up,already in the shower.She oversleptTom hadnt finished his homework before he watched TV.由“过去的过去”来判定。When she _,she realized _Tina had a terrible mornin

21、g yesterday.Tina had a terrible morning yesterday.When she _,she realized _have learnedclosed the window(then)played soccerHad Tom finished his homework before he watched TV?当我到达学校的时候,我意识到我把书包丢在家里了.What do you usually do Retell a story about Tinas morning.Tina had a terrible morning yesterday.She _.

22、When she_,her brother_ in the shower.By the time she _,the bus _ So she had to_.Oh,dear.When she _,she realized _.overslepthad already gottengot outsidehad already leftgot uprun to school got to school she had left her backpack at home By the time I got up,my brother already in the shower.2.By the t

23、ime I got outside,the bus already .3.When I got to school,I realized I my backpack at home.gottenhadhadhadleftleft 1.I _up at 6:00 this morning.(醒来)2.After I got to the cinema,the film _ already.(开始)3.He _ (学习)English for 10 years.4.By the end of last year,she _ (学)to swim for 3 years.灵活运用,巧手填空wokeh

24、ad startedhas learnedhad learnt一般过去时一般过去时xyoAA点动作跟现在没任何关系现在完成时现在完成时xyoB B 为过去发生的动作,对现在造成了一定影响,或一直持续到现在。过去完成时过去完成时CDxyoC 点(过去的过去)在点(过去的过去)在D点动作之前就已经发生点动作之前就已经发生What happened first?A点动作跟现在没任何关系B 为过去发生的动作,对现在造成了一定影响,或一直持续到现在。The teacher came into the classroom_ already.Revise when to use the Past Perfe

25、ct tense and the verb structure.2)by the end of+过去时间点.按要求改写下列句子(5/1)She overslept相当于 when引导的从句,后接过去时5 years ago have learned nowclosed the windowin the morning before school?Review the Grammar Focus.Someone was taking a shower(then)slept老师进入教室在我到达学校之前。had gone togot to schoolWhat do you usually do1.

26、We started to learn English 5 years ago.一般过去时一般过去时表示在表示在过去过去某时发生的动作或存某时发生的动作或存在的状态。在的状态。2.We have learned English for 5 years.现在完成时现在完成时表示的动作发生在表示的动作发生在 过去,但侧重对过去,但侧重对现在产生的结果或造成的影响,与现在有关。现在产生的结果或造成的影响,与现在有关。其结构为:其结构为:“助动词助动词 have(has)+过去分词过去分词”5 years ago now 5 years ago have learned now 3.过去完成时过去完成

27、时表示在过去某个时间或表示在过去某个时间或动作之前已经发生或完成了的动作或存在动作之前已经发生或完成了的动作或存在的状态,的状态,即即“过去的过去(过去的过去(past-in-the-past)”。past in the pastpast now过去完成时的结构:过去完成时的结构:过去完成时的用法:过去完成时的用法:过去完成时的否定形式:过去完成时的否定形式:过去完成时的疑问形式:过去完成时的疑问形式:主语主语had nothadnt+p.p.+其它其它.Had+主语主语p.p.+其它其它?主语主语had+p.p.+其它其它.强调强调过去过去某一个动作发生在某一个动作发生在另一个动作另一个动作

28、前前常常用过去完成时态。常常用过去完成时态。巩固练习巩固练习 1.当我起床的时候,我弟弟已经在洗澡了当我起床的时候,我弟弟已经在洗澡了 _I _ up,my brother_ already_.2.当我出去的时候当我出去的时候,公共汽车已经开走了公共汽车已经开走了._I _ outside,the bus _already _.3.当我到达学校的时候当我到达学校的时候,我意识到我把书包丢在我意识到我把书包丢在家里了家里了.By the time I _ school,I realized I _my backpack at home.4.今天早上我今天早上我 睡过头睡过头,迟到了迟到了.I _

29、 this morning and I was late.By the timegothadgotten in the showerBy the timewenthadleftgot tohad leftoversleptHOMEWORK1.Revise when to use the Past Perfect tense and the verb structure.2.Make sentences using each form of the verbs below:Leave walk start oversleep ring 3.Review the Grammar Focus.has

30、 learnedc)以重读闭音节结尾的,前面有单个元音字母时,双写辅音字母,再加 ed过去完成时态的含义:5 years ago nowthe bus _already _.What do you usually dogot to schoolin the morning before school?Tom hadnt finished his homework before he watched TV.老师进入教室在我到达学校之前。have learned过去完成时的疑问形式:When I got to school,I realized过去完成时的疑问形式:Great changes _(

31、take)place in Shanghai in the last ten years.by the time 意思是“到的时候”,Tom run away今天早上我 睡过头,迟到了.Review the Grammar Focus.study-studiedWhat do you usually do强调过去某一个动作发生在had cleaned the另一个动作前常常用过去完成时态。老师进入教室在我到达学校之前。当我出去的时候,公共汽车已经开走了.When she_,her brotherBy the time I _ school,I realized I _my backpack a

32、t home.句型转换 (10/1)_ he had stood up,he cleaned the window.He didnt go to the cinema because he _(see)the movie twice._ he had stood up,he cleaned the window.already in the shower.不规则动词的变化见课本Can you do it?B 为过去发生的动作,对现在造成了一定影响,或一直持续到现在。She had to run to school quickly一般过去时表示在过去某时发生的动作或存在的状态。由“过去的过去”来判定。Thanks a lot!

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