高中英语 模块六 Unit 16 The Revision of Past Perfect and Past Perfect Continuous课件 北师大选修6.ppt

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1、Welcome2021/8/11 星期三1Who had bought a new mobile phone?Who had cleaned the blackboard?Last class,who had been standing here in Class3?How many students had been sitting on the chairs in Class3?2021/8/11 星期三2Past PerfectPast Perfect Continuous Revision2021/8/11 星期三3Past Perfect 过去完成时过去完成时had+past par

2、ticiple(动词的动词的过去分词过去分词)规则动词规则动词不规则动词不规则动词助动词助动词(无人称变化无人称变化)regular verbsirregural verbs2021/8/11 星期三4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一般情况下在动词后面加 ed work-worked play-playedb)以以 e 结尾的动词直接加结尾的动词直接加 d use-used refuse-refusedc)以辅音字母加以辅音字母加 y 结尾的动词，把结尾的动词，把 y 改改 i 再加再加 edstudy-studiedcarry-carriedd)以重读闭音节结

3、尾的，前面有单个元音字母时，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，再加双写辅音字母，再加 edstop-stoppeddrop-dropped直接加直接加ed有有e只加只加d把把 y 变变 i 加加ed重读双写加重读双写加ed2021/8/11 星期三52.不规则动词的变化不规则动词的变化lightlighted/litholdheldbuy boughteateatenlose lost不规则动词的变化见不规则动词的变化见Moduel 5表表2021/8/11 星期三6Past Perfect Continuous 过去完成进行时过去完成进行时had been+presen

4、t participle(动词的动词的现在分词现在分词)直接加，直接加，去去e加，加，双拼加双拼加,改改ie为为y再加再加ing2021/8/11 星期三7现在分词的构成：a)一般情况下在动词后面加一般情况下在动词后面加 ing walk-walkingplay-playing b)以以 不发音不发音的的e 结尾的动词结尾的动词去e加-ing come-comingdance-dancing run-runningput-putting c)以一个元音字母一个辅音字母结尾，且重读以一个元音字母一个辅音字母结尾，且重读 的动词，则先双写该辅音字母，再加的动词，则先双写该辅音字母，再加-ing。d

5、)以字母以字母ie结尾的动词，变结尾的动词，变ie为为y，再加，再加ingdie-dying lie-lying2021/8/11 星期三8Use the two tenses for the followingsentencesChina the 29th Olympic Games.(hold)had held2021/8/11 星期三9The torch for 17days at the top of Birds Nest.(burn)had been burning2021/8/11 星期三10Hong Kong _ to China before Macao came back t

6、oChina.(return)had returned2021/8/11 星期三11The passengers for a long time to get on the train.(wait)had been waiting2021/8/11 星期三12summary:1.两种时态都是以两种时态都是以 的时间为前提的。的时间为前提的。2.过去完成时表示动作已经过去完成时表示动作已经 ,强调强调 。而过去完成进行时强调动作在过去的。而过去完成进行时强调动作在过去的某段时间内某段时间内 。1.I the office,so it was very tidy.(clean)2.She the

7、office,so we had to wait outside.(clean)had cleaned had been cleaning过去过去完成完成一直进行一直进行结果结果2021/8/11 星期三13Strategies(解题策略解题策略)Step1:先理解句子的大意。先理解句子的大意。Step2:找出句子的时间状语，综合考找出句子的时间状语，综合考虑后判断句子应该使用哪种时态。虑后判断句子应该使用哪种时态。Step3:根据选取的时态，动词做出相根据选取的时态，动词做出相应的变化。应的变化。2021/8/11 星期三14Can you do it?1.The patient _(die

8、)when the doctor arrived.2.The baby_(cry)for several hours when his mother came.3.By yesterday morning,he_(call)me ten times.4.Now the students _(do)their homework.had calledhad diedhad been cryingare doing2021/8/11 星期三155.He failed in the exam.Because he_ (play)the computerall night.6.we _(paint)th

9、e house beforewe moved in.7.So far we _(learn)a lot ofwords.8._ he _ (talk)on the phone?had painted had been playing have learnt Hadbeen talking 2021/8/11 星期三16Tense Uses Time Adverbial Past PerfectTo talk about an or in the past which happened other past events.Past Perfect Continuous activities in

10、 the past that happened before other events.The actions that happened before a particular point in the past An action that was still and had not been eventbeforesituation Longerrepeatedin progesscompleted注：动词为延续注：动词为延续性动词如性动词如talk,study,sit 等等持续的动作持续的动作WhenBy Before Untilseveral hoursall night2021/8/11 星期三17ExtensionMake sentences of the two tenses.2021/8/11 星期三18THANK YOUTHANK YOU2021/8/11 星期三192021/8/11 星期三20