牛津高中英语模块2unit3grammar-and-usage教学教材.ppt

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1、牛津高中英语模块2unit3grammar-and-usageGrammar and usagePast perfect tense 过去完成时过去完成时 概念：概念：过去完成时表示过去某一时间或动作过去完成时表示过去某一时间或动作之前已经发生或完成的动作。它表示之前已经发生或完成的动作。它表示动作发生的时间为动作发生的时间为“过去的过去过去的过去”。例如：例如：After they had become stars in their own country,the Beatles toured the United States.By the end of last month,we had

2、 learned twelve English songs.用法：用法：过去完成时表示在过去某一时间之前过去完成时表示在过去某一时间之前已经开始并一直持续到那时的动作或已经开始并一直持续到那时的动作或状态。如：状态。如：We hadnt seen each other since I left my hometown.注意：注意：1.过去完成时由过去完成时由“助动词助动词had+过去分词过去分词”构成。过去完成时常与构成。过去完成时常与by,for,before,since等介词短语或由等介词短语或由after,before,since,when,by the time等引导的时间状语从句连用

3、。如：等引导的时间状语从句连用。如：By the end of last year,we had learned seven hundred English words.They hadnt finished their work when I arrived at the office.2.过去完成时表示动作发生在过去完成时表示动作发生在“过去的过过去的过去去”，而一般过去时只表示动作发生在过，而一般过去时只表示动作发生在过去。例如：去。例如：By the late 1960s,their music had changed completely.（表示在（表示在20世纪世纪60年年代后期代

4、后期 过去时间过去时间 之前，他们的音乐之前，他们的音乐就已经改变了）就已经改变了）In the late 1960s their music changed completely.（表示在（表示在20世纪世纪60年代后期时，年代后期时，他们的音乐改变了）他们的音乐改变了）3.现在完成时着眼于现在，强调过去发生的现在完成时着眼于现在，强调过去发生的某动作对现在造成的影响和结果，或是由过某动作对现在造成的影响和结果，或是由过去持续到现在的动作。过去完成时则主要体去持续到现在的动作。过去完成时则主要体现过去发生的两动作的先后有别，表达的是现过去发生的两动作的先后有别，表达的是“过去的过去过去的过去

5、”，即比过去发生的某动作都，即比过去发生的某动作都还要还要“过去过去”。例如：。例如：I have cleaned the classroom.（强调扫地强调扫地所产生的结果：地干净了）所产生的结果：地干净了）I had cleaned the floor when Mother came home.（“回家回家”已过去，而先前已过去，而先前“扫地扫地”更过去了）更过去了）1.-Were you surprised by the ending of the film?-No,I _the book,so I already knew the story?（2010 安徽）安徽）A.was re

6、ading B.had read C.am reading D.have read解析：句意为解析：句意为“我看过书了，已知道这个我看过书了，已知道这个故事故事”。在。在“knew”前已看过，故用过前已看过，故用过去完成时。去完成时。B2.I was just going to cut my rose bushes but someone _ it.Was it you?（2010湖南）湖南）A.has done B.had done C.would do D.will do解析：该空动作发生在解析：该空动作发生在was just going to cut之前，即表示过去的过去，故用过去之前，

7、即表示过去的过去，故用过去完成时态。句意为：完成时态。句意为：“我正要剪切我的我正要剪切我的蔷薇丛但（发现）有人已经将它剪切了。蔷薇丛但（发现）有人已经将它剪切了。是你干的吗？是你干的吗？”B3.Up to now,the program _ thousands of children who would otherwise have died.（2010 山东）山东）A.would save B.saves C.had saved D.has saved解析：句意应为解析：句意应为“截止到现在，这个项目截止到现在，这个项目 已经挽救了成千上万的本来会死去的孩已经挽救了成千上万的本来会死去的孩

8、 子的生命。子的生命。”up to now是现在完成时态是现在完成时态 的标志，所以空格处使用现在完成时态。的标志，所以空格处使用现在完成时态。D4.Peter,where did you guys go for the summer vacation?We_ busy with our work for months,so we went to the beach to relax ourselves.（2010 江苏）江苏）A.were B.have been C.had been D.will be 解析：我们去海边发生在过去解析：我们去海边发生在过去,而我们忙而我们忙 于工作在此之前于

9、工作在此之前,因此用过去完成时。因此用过去完成时。C5.It took me a long time before I was able to fully appreciate what they _ for me.（2010 北京）北京）A.had done B.did C.would do D.were doing解析：整个句子时态用的是一般过去解析：整个句子时态用的是一般过去 时，我能够表示感谢就已经是过去，时，我能够表示感谢就已经是过去，而他们对我的帮助则是过去的过去。而他们对我的帮助则是过去的过去。因此选因此选A。A6.The book has been translated int

10、o thirty languages since it on the market in 1973.（2010 重庆）重庆）A.had come B.has come C.came D.comes解析：解析：since引导的从句作状语时，主引导的从句作状语时，主 句通常用完成时，而从句用一般过句通常用完成时，而从句用一般过 去时，所以选去时，所以选C项。项。CComplete these sentences.1.他说他以前见过你。他说他以前见过你。He said that he _(see)you before.had seen2.到了六点钟为止，他们已经工作了八到了六点钟为止，他们已经工作了

11、八小时了。小时了。By six oclock they _(work)for eight hours.had worked3.我到广州时，他在那里很长时间了。我到广州时，他在那里很长时间了。When I went to Guangzhou,he _(be)there for a long time.had been4.到上个月中旬我们在北京住了有五年到上个月中旬我们在北京住了有五年时间了。时间了。By the middle of last month,we _(live)in Beijing for five years.had lived5.她到家时，她的孩子已经睡着了。她到家时，她的孩子已

12、经睡着了。When she got home,her children _(sleep).had slept6.在他们到达之前电影已经开始了。在他们到达之前电影已经开始了。Before they arrived,the film _ already _(start).hadstartedComplete these sentences with the verbs in brackets.1.Before Ringo _(join)the Beatles,he _(play)drums in another band.2.Before they _(tour)America,the Beatl

13、es _(become)stars in their own country.joinedhad playedtouredhad become3.Before they _(record)Let It Be,the Beatles _(record)eleven other albums.4.After they _(record)Let It Be,the band _(split up).5.After the group _(split up),all the Beatles _(perform)as solo artists.recordedhad recordedrecordedsp

14、lit upsplit upperformed6.Unfortunately,he _ at the show when I _.(arrive)(leave)7.By the time we _ at the stadium,the band _ playing.(arrive)(begin)had leftarrivedarrivedhad begun8.Fortunately,the power cut _ after the fans _ the stadium.(happen)(leave)9.Before he _ his latest album,he _ some songs

15、with Paul McCartney.(make)(record)happenedlefthad maderecordedChoose the best answers.1.How long _ each other before they _ married?A.had they known,got B.have they known,get C.did they know,were going to get D.do they know,are going to getA2.By the time he was twelve,Edison _ to make a living by hi

16、mself.A.would begin B.has begun C.had begun D.was begunC3.She _ Robert for a year.A.married B.married with C.has been married D.has been marred to D4.When Jack arrived he learned Mary _ for about an hour.A.had gone B.had been away C.had set off D.had leftB5.Ill go with you as soon as I _ my work.A.w

17、ill finish B.shall finish C.finish D.finishedC6.Doctors _ in every part of the world.A.need B.are needing C.are needed D.will needC7.We all agree that he was stronger than _.A.I looked B.I was looked C.he looked D.he was looked C8.Great change _ in the city,and a lot of factories _.A.have been taken

18、 place;have been set upB.have taken place;have been set upC.are taken place;are set upD.were taken place;were set upB9.Do you think Sam will call his old teacher as soon as he _ in town?A.will be arrived B.is arrived C.arrive D.will arrive C10.That dinner was the most expensive meal we _.A.would have B.have had C.had never had D.had ever had D此课件下载可自行编辑修改，仅供参考！此课件下载可自行编辑修改，仅供参考！感谢您的支持，我们努力做得更好！谢谢感谢您的支持，我们努力做得更好！谢谢