英语人教版八年级下册uni10 grammar.pptx

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1、Unit10I’vehadthisbikeforthreeyears.GrammarFocusGrammarPresentperfecttensewithsinceandfor现在完成时表示动作或状态在过去已经开始，持续到现在可能还要持续下去，常和for,since引导的表示一段时间的时间状语连用，谓语动词多用延续性动词。如：live,teach,learn,work,study,beopen,beclosed,keep,have,beaway,bemarried,beasleep,beill等。如：Ihaveworkedheresince2002.自从200

2、2年以来我就在这儿工作。TheyhavelearnedEnglishforthreeyears.他们学英语3年了。注意：1）since+点时间或一般过去时，for+段时间，如：sincelastweek,fortwodays。1.Wehavelivedhere_______1990.2.—Howlonghaveyoustudiedhere?—______5years.3.Theboyhashadabadcold______lastnight.4.Ihavewaited____twohours.sincesinceFor用for和since完成句子。for5.M

3、r.Huanghaskeptthebooks______lastmonth.6.Ihavetaughtintheschool________Icamehere.7.Wehavebeenfriends______alongtime.8.IhavebeeninNanjing________eightyears.sincesinceforfor9.SallyhasbeenawayfromLondon________lastSaturday.10.Ourschoolhaschangedalot______thenewbuildingwasbuilt.11.Tommyh

4、ashadthismotorcycle_______threeyears.12.Myparentshavebeenmarried______20years.sincesinceforfor2.短暂性动词(come,go,leave,buy…)可以用于现在完成时。但不能用于带有for或是since的肯定句中。HehasleftBeijingforaweek.HehasnotleftBeijingyet.(×)(√)3.短暂性动词变为延续性动词的现在完成时构成举例：buyhave/hashadborrowhave/haskeptarrivehave/hasbeen

5、in/atleavehave/hasbeenawayopenhave/hasbeenopenjoinhave/hasbeeninhave/hasbeenamemberofdiehave/hasbeendeadmarryhave/hasbeenmarriedcome/gohave/hasbeenin/atbegin/starthave/hasbeenonfinish/stophave/hasbeenoverfallasleephave/hasbeenasleepTheoldmandiedtwoyearsago.这个老人两年前死了。Theoldmanhasbeen

6、deadfortwoyears.这个老人死了两年了。Heboughtacarfiveyearsago.他五年前买了一辆轿车。Hehashadthecarforfiveyears.这辆轿车他买了五年了。4aJimisinJapan.Hearrivedtherethreedaysago.2.Theyareveryhungry.Theirlastmealwastenhoursago.JimhasbeeninJapanforthreeyears.Theyhavebeenhungryfortenhours/sincetenhoursago.Rewritethesente

7、ncesusingfororsince.3.Ihaveacamera.Iboughtitin2009.4.IknowAnna.Ifirstmetherthreeyearsago.5.Lindaisill.ShebecameillonMonday.Ihavehadacamerasince2009.IhaveknownAnnforthreeyears/sincethreeyearsago.LindahasbeenillsinceMonday.4bFillintheblankswiththecorrectformsoftheverbsinbrackets.1.I__

8、__________(neverbe)