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1、现在完成时ThePresentPerfectTense主语+have/has+doneShehasfinishedherhomework.Shehasnotfinishedherhomework.Hasshefinishedherhomework?Whathasshedone?肯定句否定句一般疑问句特殊疑问句主语+have/has+not+doneHave/Has+主语+done?特殊疑问词+have/has+主语+done?动词的过去分词的变化规则1.规则变化(1)一般情况下，动词词尾加-ed。如：worked,played,wanted,act
2、ed(2)以不发音的-e结尾动词，动词词尾加–d。如：lived,moved,decided,hoped,judged,raised(3)以辅音字母+y结尾的动词,把-y变为-i再加-ed。如：studied,tried,copied,cried,carried(4)重读闭音节动词，双写词尾辅音字母，再加–ed。如：stopped,begged,dragged,dropped,planned2.不规则变化原形过去式过去分词becomebeginbreakbringbuybuildcatchcomegoget…becamebeganbrokebrou
3、ghtboughtbuiltcaughtcamewentgotbecomebegunbrokenbroughtboughtbuiltcaughtcomegonegot,gotten3.现在完成时可以与already,ever,recently,never,yet,foralongtime,lately,just,since＋过去的时间点/一般过去时,in/duringthepast/lastfewyears等状语连用。1.Ihavealreadyfinishedmyhomework.2.Hehasn’tcleanedtheroomyet.3.She
4、haslivedinChinasince2008.4.WehavelearnedEnglishformorethan3years.5.Theyhaven’tseeneachotherforalongtime.6.Inthelast10years,thepriceofhousehasincreased.TranslateandSummarize1.概念:①表示过去发生或已经完成的动作对现在造成的影响或结果。②表示从过去某一时间开始并一直延续到现在的动作或状态。2.构成:助动词have/has＋动词的过去分词。Ihavealreadyfinishedm
5、yhomework.HehaslivedinChinasince2008.现在完成时sb+have/has+延续性动词的过去分词+for+一段时间IhavelearnedEnglishformorethan3years.Hehashadthebikefor2years.sb+have/has+done+since+过去时间点/一般过去时MrGreenhaslivedinChinasince2008/sincehegotmarried.衔接教材149页练习 用for或since填空。现在完成时的特殊提示词in/duringthelast/pastfe
6、wyears在过去几年Inthepast10years,thepriceofhousehasincreasedalot.sofar迄今为止，到目前为止Sofar,Ihaveread10Englishnovels.1.我已经完成我的家庭作业了。Ihavealreadyfinishedmyhomework.2.他曾经去过北京吗？HasheeverbeentoBeijing?3.他从未去过北京。HehasneverbeentoBeijing.4.我刚完成我的家庭作业。Ihavejustfinishedmyhomework.4.havebeento，hav
7、egoneto的用法区别：havebeento表示“曾经去过某地”，现在已不在该地。havegoneto则表示“已经去某地了”，说话时不在说话地点，或在去某地的途中，或已到了某地，总之现在还未回来。HehasbeentoShanghai.他去过上海。(他已不在上海了。)HehasgonetoShanghai.他到上海去了。(他可能在去上海的路上，或已到上海，现在不在这里。)衔接教材143页练习 用havebeento和havegoneto填空。6.现在完成时与一般过去时的区别：Ihaveseenthefilm.我看过这部电影。(我了解这部电影的内容
8、。)Isawthefilmlastweek.我上星期看了这部电影。(只说明看了这部电影，不涉及现在的情况。)Hehasli
