八下unit 10 Grammar Focus.ppt

《八下unit 10 Grammar Focus.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、Unit10Unit10I'vehadthisbikeforthreeyears.SectionA3Grammarfocus–4c1.Howlonghaveyouhadthatbikeoverthere?I’vehaditforthreeyears.2.Howlonghashissonownedthetrainandrailwayset?He’sowneditsincehisfourthbirthday.3.Haveyoueverplayedfootball?Yes,IdidwhenIwaslittle,butIhaven’tplayedforawhilenow.表示从过去已经开始持续到

2、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，如“for+段时间”、“since+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相互转换。PresentPerfectTense现在完成时e.g.Myunclehasworkedatthisfactoryfortenyears.=Myunclehasworkedatthisfactorysincetenyearago.I’ve lived heresince1990．I haven’t seen himforthree years.含有for

3、，since的现在完成时的用法歌诀:过去的动作或状态，一直持续到现在，for、since把时间带。歌诀She’s been at this schoolsincefive years ago.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2.你哥哥参军多长时间了？Howlonghasyourbrotherjoinedthearmy?()Howlonghasyourbrotherbeeninthearm

4、y/beenasoldier?()×√fallsleep—beasleepbuy--havekeep---borrowjoin—bein/beamemberofbecome—become/go/—be+相应的介词短语非延续性动词和延续性动词之间的转换begin/start—beonclose—beclosedopen—beopengetto/arrive/reach—be(in)die—bedeadleave—beaway4aRewritethesentencesusingfororsince.JimisinJapan.Hearrivedtherethreedaysago.2.Theya

5、reveryhungry.Theirlastmealwastenhoursago.Theyhavebeenhungryfortenhours/sincetenhoursago.JimhasbeeninJapanforthreeyears.3.Ihaveacamera.Iboughtitin2009.4.IknowAnna.Ifirstmetherthreeyearsago.5.Lindaisill.ShebecameillonMonday.Ihavehadacamerasince2009.IhaveknownAnnforthreeyears/sincethreeyearsago.Lind

6、ahasbeenillsinceMonday.4bFillintheblankswiththecorrectformsoftheverbsinbrackets.I_______________(neverbe)tothewaterparkbefore.Iwantto_____(go)nextmonthbeforetheweathergetstoocold.2.They_________________(neverown)anypets,butthey___________(alwayswant)tohaveadog.haveneverbeengohaveneverownedalwaysw

7、ant3.We_________(have)apianosincelastNovember.We_______(buy)itfromtheLifamilywhentheymovedtotheUSlastyear.4.CathyandAmy____________(notbe)backtotheirhometownfortwoyears.They______(miss)theirhometownalotandhopetovisitth