高中英语-unit-4-earthquakes(第3课时)教案-新人教版必修1.doc

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1、Unit4Earthquakes教学目标：语法现在完成时重难点攻破：1.现在完成时的构成：主语+have(has)+过去分词(done)2.用法：(1)现在完成时用来表示现在之前已发生过或完成的举动或形状,但其结果却跟现在有联系,也的确是说,举动或形状发生在过去但它的阻碍现在还存在.常与for,since连用.Ihavelostmywallet.(含义是:现在我不钞票花了.)Janehaslaidthetable.(含义是:简已在吃饭.)Michaelhasbeenill.(含义是:现在仍然特别健康)Hehasreturnedfromabroad.(含义是:现在已在此地)Maryhasbeen

2、illforthreedays.Ihavelivedheresince1998.(2)现在完成时屡屡同表示不判定的过去时辰状语连用,如already,yet,just,before,recently,still,lately等:Hehasalreadyobtainedascholarship.Ihaventseenmuchofhimrecently(lately).Wehaveseenthatfilmbefore.Havetheyfoundthemissingchildyet？(3)现在完成时常常与表示频度的时辰状语连用,如often,sometimes,ever,never,twice,on

3、severaloccasions等:HaveyoueverbeentoBeijingIhaveneverheardBunnysayanythingagainsther.Ihaveusedthispenonlythreetimes.Itisstillgood.Georgehasmetthatgentlemanonseveraloccasions.还可以同包括现在时辰在内的时辰状语连用,如now,uptothesefewdays/weeks/months/years,thismorning/week/month/year,now,just,today,uptopresent,sofar等:Pete

4、rhaswrittensixpaperssofar.Manhasnowlearnedtoreleaseenergyfromthenucleusoftheatom.TherehasbeetoomuchraininSan Franciscothisyear.Uptothepresenteverythinghasbeensuccessful.(4)现在完成时与for引起的短语连用时，表达从过去开始的举动或形状延续至今，而一般过去时与“for+一段时辰连用时，只指过去的举动或形状在过去延续了多长时辰。Wevestayedhereforthreeweeks.我们在这里呆了三个星期了。说话时人还在。Hes

5、tayedhereforthreeweekslastyear.他过去曾在这里呆过三个星期。并不表示现在是否在(5)havegoneto跟havebeento的区不：前者表示某人“去某地了，那集团已经不在这里了，常用于第三人称。后者表示某人“去过某地，现在已经归来回头了，常与ever等连用可用于年夜伙儿称：ShehasgonetoEngland.她到英国去了。ShehasbeentoEngland.她去过英国。“WhereisTom?“Hehasgonetothepostoffice.Tom现在不在说话处Haveyoueverbeenthere?你已经去过那儿吗？说话人you现在在说话处强化训练

6、：1.Mother_meanewcoatyesterday.I_iton.Itfitsmewell.A.hadmade;havetriedB.made;havetriedC.hasmade;triedD.made;tried2._youever_America?Yes,Ihave.A.Have;gonetoB.Have；goneinC.Have；beentoD.Have；beenin3.Tom_upintothetree.Look,he_highupthere!A.hasgotisB.hasclimbedwasC.gotwasD.climbedis4._you_thetextyet?Yes,w

7、e_ittwohoursago.A.DidcopydidB.HavecopiedhaveC.HavecopieddidD.Didcopyhad5.Why_she_angry?Becausehe_atherjustnow.A.DidgetshoutedB.HasgotshoutedC.DidgethasshoutedD.Hasgothasshouted6._you_thefilmbefore?Where_you_it?A.Haveseen;didseeB.DidseedidwatchC.HaveseenhaveseenD.Didseehaveseen7.You_mewaitingfortwohours.I_foryousincefive.A.KeptwaitedB.havekeptwaitedC.KepthavewaitedD.havekepthavewaited8.Where_John_?Tothelibrary.He_thereforanhour.A.HasbeenhasgoneB.HasgonehasbeenC.DidgowentD.Didbewent