2019春八年级英语下册Unit8HaveyoureadTreasureIslandyet语法专练课件新版人教新目标版.ppt

Unit8HaveyoureadTreasureIslandyet?Unit1Whatsthematter?,现在完成时(一)现在完成时表示过去发生的动作对现在造成的影响或结果,也可以表示从过去某一时间开始,一直持续到现在的动作或状态。常与already“已经”,just“刚刚”,ever“曾经”,never“从不”,before“以前”,yet“仍然”等连用。,3.一般过去时与现在完成时的区别。(1)一般过去时表示过去某时发生的动作或单纯叙述过去的事情;现在完成时强调过去的动作对现在造成的影响或结果。例如:Isawthisfilmyesterday.我昨天看了这部电影。Ihaveseenthisfilm.这部电影我已经看过了。(2)一般过去时常与表示具体的过去时间的状语(如yesterday,lastweek,threedaysago,in1990等)连用;现在完成时不与表示明确的过去时间的状语连用,但可以与inthepast.years/weeks,sofar等时间状语连用。例如:Tomwrotealettertohisparentslastnight.昨晚汤姆给他父母写了一封信。Theweatherhasbeensohotsofarthissummer.到目前为止,今年夏天天气一直很热。,.根据句意用所给词的适当形式填空1.Ihavealreadyhadlunch.Ihaditat11:30.(have)2.Haveyouwrittentoyourparentsyet?Yes,Iwrotetothemlastnight.(write)3.Howcleantheclassroomis!Yes,Imsurethatsomeonehascleaned(clean)it.4.Jerrystarted(start)towritetheletteryesterday,buthehasntfinished(notfinish)ityet.5.Mr.Brownhastaught(teach)AmyFrenchforamonth,butshestillcantspeakFrenchwell.,.单项填空(C)1.Howlongyourbrotherthiscamera?Fortwoweeks.A.have;boughtB.have;hadC.has;hadD.has;bought(A)2.Look,thelightisstilloninHelensoffice.Maybesheherworkyet.A.hasntfinishedB.wontfinishC.doesntfinishD.didntfinish(D)3.ItheHistoryMuseumtwice.Ivelearnedalotthere.A.visitB.amvisitingC.willvisitD.havevisited,(C)4.Hasshefinishedherhomeworkyet?.Shefinishedittenminutesago.A.No,shehasB.Yes,shedoesC.Yes,shehasD.No,shehasnt(B)5.Paulawaspleasedthatsheherlostwatchyesterday.A.findsB.foundC.hasfoundD.willfind,.按要求完成句子,每空一词1.Myfatherhaslivedheresince2000.(对画线部分提问)Howlonghasyourfatherlivedthere?2.Theyboughtthebooktwohoursago.(对画线部分提问)Whendidtheybuythebook?3.Nancyhasalreadyhadbreakfast.(改为否定句)Nancyhasnthadbreakfastyet.4.MissGreenstartedtoteachusinourhometowntwoyearsago.(改为同义句)MissGreenhastaughtusinourhometo