初二下學期第七講ExperiencesI.現在完成時一、現在完成時構成1.肯定句:S(主語)+have/has+P.P.(過去分詞)2.否定句:S(主語)+have/has+not+P.P.(過去分詞)3.疑問句－Have/Has+S(主語)+P.P.(過去分詞)?－Yes,S+have/has.No,S+haven’t/hasn’t.—特殊疑問詞+have/hasdone…?二、現在完成時的意義1.Ihavealreadyfinishedmyhomework.表示過去發生或已經完成的某一動作對現在產生的影響或結果，常用時間狀語：already、never、ever、just、yet2.IhavelearntEnglishfor5years.表示過去已經開始，持續到現在的動作或狀態，常用時間狀語：today、thesedays、fortwoyears、inthepast/lastfewyears、since1984、sincehecamehere3.IhavewatchedthefilmAvatar3times.表示經歷經驗，常用時間狀語：once,twice,…timesExercise:Fillintheblanks:1.A：I____always____(want)totryscubadiving(潛水).B：Really?Notme.I____always____(be)afraidofdeepwater.2.A：I____(notdo)anythingfunlately.B：Meneither.I____(nothave)anytime.3.A：I____(notsee)thenewSpider-Manmovie.Ireallywanttoseeit.B:Weshouldgo!Allmyfriends____(see)it,andtheylovedit.4.A:IwanttogotoEurope.I____never____(be)toParis.B:Meneither.Mycousinlivesthere.He____(invite)meseveraltimes,butI____(nothave)enoughmoneytogo.參考答案：have;wanted;have;beenhaven’tdone;don’thavehaven’tseen;haveseenhave;been;hasinvited;don’thaveII.現在完成時與一般過去時區別1.一般過去時表示過去某時發生的動作或單純敘述過去的事情，強調動作；現在完成時為過去發生的，強調過去的事情對現在的影響，強調的是影響。IhavejustbeentoLondon.Iwenttherelastmonth.2.一般過去時常與具體的時間狀語連用，而現在完成時通常與模糊的時間狀語連用，或無時間狀語。yesterday,…ago,in1980,inOctober,lastweekrecently，just,inthepastfewyears,before,already,lately,for,since,sofar,ever,never,yet,uptonow3.現在完成時可表示持續到現在的動作或狀態，動詞一般是延續性的，如：live,teach,learn,work,study,know一般過去時常用的非持續性動詞有：come,go,leave,start,die,finish,become,getmarried等。Exercise:Choosethebestanswers:1.—He____todrawhorsesalready.—When____helearnit?—Lastyear.

A.learned…has B.learned…didC.haslearned…hasD.haslearned…did2.Tom_____upintothetree.Look,he____highupthere!

A.hasgot…is B.hasclimbed…wasC.got…was D.climbed…is3.—____you_____thetextyet?—Yes,we____ittwohoursago.

A.Did…copy…did B.Have…copied…haveC.Have…copied…didD.Did…copy…had參考答案：1.D2.A3.CIII.Ablog:themostexcitingexperienceReadtheblogsandanswerthequestions:FlyingabovetherainforestLastsummer,IwentontheSkyTrekintherainforestinCostaRica.I’mafraidofheights,soIalmostdidn’tgo.Fortunately,thereweresomegreatguides,andtheyreallyhelpedme.Amazingly,itwasn’treallyscary.ItwasthemostexcitingexperienceI’veeverhad!Ididn’tseeaquetzalbird,unfortunately,somaybeI’llgoback.LeonardI’minAthens!Asfortheislandofbeenallaroundtheworld,andIthinkthatitisthemostbeautifulplaceIhaveeverbeen.Theseaissocrystalclearthatyoucanseeyourshadowinwater10metersdeep.Thebeachesareincredible(難以置信的),andtherearetheseamazinglittletownsnestled(隱藏于)inthemountains.—Peter1.WhydidLeonardwanttogobacktotherainforest?__________________________________________________________2.WhatarethethreereasonsPeterthinksLesvosisabsolutelyperfect?__________________________________________________________參考答案：Hedidn’tseeaquetzalbird.Theseaisso