英语人教版八年级下册Grammar focus-4c.pptx

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1、Unit10Unit10I'vehadthisbikeforthreeyears.Grammarfocus-4c1.Howlonghaveyouhadthatbikeoverthere?I’vehaditforthreeyears.2.Howlonghashissonownedthetrainandrailwayset?He’sowneditsincehisfourthbirthday.3.Haveyoueverplayedfootball?Yes,IdidwhenIwaslittle,butIhaven’tplayedforawhilenow.

2、定向导学相互转换表示从过去已经开始持续到现在的动作或状态，可以和表示“从过去某一时刻延续到现在的一段时间状语”连用，（）+一段时间”、“（）+过去点时间”、“since+过去时的从句”、“since+一段时间+ago”。且for与since引导的时间状语可以（）PresentPerfectTense现在完成时合作探究sincefor1、Myunclehasworkedatthisfactory_____tenyears.Myunclehasworkedatthisfactory_____tenyearago.2、I’ve lived here _

3、____ 1990．3、I haven’t seen him ____ three years.4、She’s been at this school_____five years ago.forsincesincefor用for、since填空since合作探究此种用法中表示持续性的动作或状态的动词必须是延续性动词(否定句除外)。1.这本书我买了5年了。Ihaveboughtthebookforfiveyears.()I’vehadthebookforfiveyears.()×√句中动词的特点精讲点拨2.你哥哥参军多长时间了？Howlongha

4、syourbrotherjoinedthearmy?()Howlonghasyourbrotherbeeninthearmy/beenasoldier?()×√精讲点拨1.转换为相应的延续性动词，用于现在完成时。borrow—buy—puton—catchacold—gettoknow—gettosleep—非延续性动词和延续性动词之间的转换keephavewearhaveacoldknowsleep精讲点拨2.转化为“be+形容词/副词/介词/名词”begin/start—beongoout—beoutclose—beclosedopen—be

5、opengetto/arrive/reach—be(in)die—bedeadleave—beaway精讲点拨finish—beoverfallsleep—beasleepjoin—bein/beamemberofbecome—bemakefriends—befriendscome/go/—be+相应的介词短语精讲点拨4aRewritethesentencesusingfororsince.JimisinJapan.Hearrivedtherethreedaysago.2.Theyareveryhungry.Theirlastmealwasten

6、hoursago.Theyhavebeenhungryfortenhours/sincetenhoursago.JimhasbeeninJapanforthreeyears.精讲点拨3.Ihaveacamera.Iboughtitin2009.4.IknowAnna.Ifirstmetherthreeyearsago.5.Lindaisill.ShebecameillonMonday.Ihavehadacamerasince2009.IhaveknownAnnforthreeyears/sincethreeyearsago.Lindahasbee

7、nillsinceMonday.精讲点拨4bFillintheblankswiththecorrectformsoftheverbsinbrackets.I_______________(neverbe)tothewaterparkbefore.Iwantto_____(go)nextmonthbeforetheweathergetstoocold.2.They_________________(neverown)anypets,butthey___________(alwayswant)tohaveadog.haveneverbeengohav

8、eneverownedalwayswant达标检测3.We_________(have)apianosincelastNovember.