高中英语 模块六 Unit 16 The Revision of Past Perfect and Past Perfect Continuous课件 北师大版选修6

Welcome Whohadboughtanewmobilephone Whohadcleanedtheblackboard Lastclass whohadbeenstandinghereinClass3 HowmanystudentshadbeensittingonthechairsinClass3 PastPerfectPastPerfectContinuous Revision PastPerfect 过去完成时 had pastparticiple 动词的过去分词 规则动词 不规则动词 助动词 无人称变化 regularverbs irreguralverbs 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 played b 以e结尾的动词直接加d use used refuse refused c 以辅音字母加y结尾的动词 把y改i再加ed study studied carry carried d 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 stop stopped drop dropped 直接加ed有e只加d把y变i加ed重读双写加ed 2 不规则动词的变化 light lighted lit hold held buy bought eat eaten lose lost 不规则动词的变化见Moduel5表 PastPerfectContinuous过去完成进行时 hadbeen presentparticiple 动词的现在分词 直接加 去e加 双拼加 改ie为y再加ing 现在分词的构成 a 一般情况下在动词后面加ing walk walking play playing b 以不发音的e结尾的动词去e加 ing come coming dance dancing run running put putting c 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 ing d 以字母ie结尾的动词 变ie为y 再加ing die dyinglie lying Usethetwotensesforthefollowingsentences Chinathe29thOlympicGames hold hadheld Thetorchfor17daysatthetopofBird sNest burn hadbeenburning HongKong toChinabeforeMacaocamebacktoChina return hadreturned Thepassengersforalongtimetogetonthetrain wait hadbeenwaiting summary 1 两种时态都是以的时间为前提的 2 过去完成时表示动作已经 强调 而过去完成进行时强调动作在过去的某段时间内 1 Itheoffice soitwasverytidy clean 2 Shetheoffice sowehadtowaitoutside clean hadcleaned hadbeencleaning 过去 完成 一直进行 结果 Strategies 解题策略 Step1 先理解句子的大意 Step2 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 Step3 根据选取的时态 动词做出相应的变化 Canyoudoit 1 Thepatient die whenthedoctorarrived 2 Thebaby cry forseveralhourswhenhismothercame 3 Byyesterdaymorning he call metentimes 4 Nowthestudents do theirhomework hadcalled haddied hadbeencrying aredoing 5 Hefailedintheexam Becausehe play thecomputerallnight 6 we paint thehousebeforewemovedin 7 Sofarwe learn alotofwords 8 he talk onthephone hadpainted hadbeenplaying havelearnt Had beentalking event before situation Longer repeated inprogess completed 注 动词为延续性动词如talk study sit等持续的动作