高中英语必修二学案M2u1grammar4

年级高一学科英语总课时课题M2Unit1Grammar3第___3__课时主备人司倩倩上课时间锁定目标找准方向备注LearningaimsLearnthedifferencesbetweenthepresentperfecttenseandthepresentperfectcontinuoustense.自主预学摸清学情预学检查：检查课文预习的情况，根据讲义做的情况进行讲解合作探究携手共进parethedifferencebetweenthesimplepasttenseandthepresentperfecttense.现在完成时与一般过去时所表示的动作或状态都发生在过去，区别在于：1.现在完成时强调这一动作与现在的关系，如对现在产生的影响或结果，它不与表过去的时间状语连用。2.一般过去时则只表示过去的事实，与现在毫无关系关系，它常与这些时间状语词连用：yesterday,lastnight/week/month/year,ago,in1980,atthattime,then,theotherday,justnow,once等。1.WehavestudiedEnglishforaboutfiveyears.Webegantostudyitfiveyearsago.2.Theymovedtothesouthin1990andhavelivedtheresincethen.3.Ericlefthomelastyearandhasjusteback.4.Justinhasbeenawayfromhomeforseveraldays.HedisappearedlastFriday.5.Theyboughtthishousethreeyearsagoandtheyhavelivedheresincethen.6.Mybrotherwenttoseemygrandpalastweek.Hehasvisitedhimthreetimesthismonth.7.“Haveyouseenmypen?”“Yes,Isawitonyourdeskjustnow.”8.Hasthepostmaneyet/thismorning?Didthepostmanethismorning?9.Ihaveknownhimforalongtime.Hello!Ididn’tknowyouwerehereinNanjing.Howlonghaveyoubeenhere?10.Hehassmokedforsixyears.(Hestillsmokes.)Hesmokedforsixyears.(Itmaymeanthathestoppedsmokingthen.)11.Tomhashadabadcarcrash.(He’sprobablystillinhospitalnow.)Tomhadabadcarcrash.(Buthe’sprobablyoutofhospitalnow.)12.Wehaven’tseenJustinforaweek.(Heistillmissing.)Justindisappearedlastweek.(ItmaymeanthatthisweekJustinishere.)拓展提升学以致用1.现在完成时和现在完成进行时都表示动作从过去开始，但现在完成时强调动作的结束。而现在完成进行时则强调动作持续的过程。Theyhavebeenwideningtheroad.他们一直在加宽马路。（尚未完工，仍在继续）Theyhavewidenedtheroad.他们把马路加宽了。（已经完工）2.在表反复发生的动作时现在完成时强调次数。而现在完成进行时则强调持续的过程。HowmanytimeshaveyouvisitedEgyptthismonth?IhavevisitedEgypttwicethismonth.(表被问者过去往反于埃及和居住地，但现已经回来。)HowlonghaveyoubeentouringEgypt?IhavebeentouringEgyptfortwomonths.（表被问者过去一段时间内一直呆在埃及，没有离1）现在完成进行时更强调动作的延续性，它是现在完成时的强调形式。试比较：We'vebeenlivingherefortenyears.We'velivedherefortenyears.我们在这儿已经住了十年了。“持续性动词”可用现在完成时，也可用现在完成进行时，唯一的区别是进行时更强调动作的持续性。Whohasbeeneatingmydinner?(Someofitisleft)Whohaseatenmydinner?(Itisallgone.)2）在不用时间状语的情况下，现在完成进行时表示动作仍在进行。而现在完成时则表示动作在过去已结束。如：Thestudentshavebeenpreparingfortheexam.（还在进行）学生们一直在准备考试。Thestudentshavepreparedfortheexam.（已经结束）学生们为考试作了准备。3）有些表示状态、感情，感觉的动词如：have，exist，like，hate，hear，know，sound等动词不能用于现在完成进行时，但可用于现在完成时。如：They'veknowneachothersince1970.自从1970年起他们就相互认识了。开过。）反馈评价体验成功Fillintheblankswiththegivenverbsinbrackets,usingthepresentperfectorthepresentperfectcontinuoustense.1.Theyarehappybecausethey_________(do)theexperimentsuccessfully.They________(make)uptheirmindstotelltheworldabouttheresultsoftheirexperiment.2.ThisisthesecondtimethatI_______(lose)mymobilephone.3.Thestudents_________(prepare)fortheNewYear’sconcertsincelastmonth.They________(invite)theirparentstoeandwatchtheirperformance.4.Forthelasttwoyears,he_________(write)abookontheSecondWorldWar,buthe_________(notfinish)ityet.Chosethebestanswers1.Tom:MissJones______musicatEtonSchoolfortenyears.Sarah:NowonderIoftenhearhersinginginhergarden.A.teachesB.usedtoteachC.isteachingD.hasbeenteaching2.Tracy:Ithinkthewaitressmusthaveforgottenus.We______hereforoverhalfanhourandnobody______ourfoodyet.John:Isupposedyouareright.A.havebeenwaiting;hasservedB.havebeenwaiting;servedC.havebeenwaited;hasservedD.havewaited;served3.Thestudentsdon’twanttohavetheirsupperuntilthey______theirexperiment.A.finishedB.havefinishedC.hadfinishedD.willfinish4.Iplaypingpongquitewell,butI______timetoplaysincethenewyear.A.haven’tB.d