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时间:2020-03-03
《英语人教版八年级下册unit10语法.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、Unit10I'vehadthisbikeforthreeyears.(Grammarfocus–4c)现在完成时PresentPerfectTense1.过去某一动作、行为对现在的影响eg.IhaveleftBeijing.2.过去某一动作、行为一直持续到现在eg.IhavebeenawayfromBeijingfor3days.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,如“for+时间段”、“since+过去时间点”、“since+过去时的从句”、“since+一段时间+ago”。且for与since引导
2、的时间状语可以相互转换。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?()Howlonghasyourbrotherbeeninthearmy/beenasoldier?()1.转换为相应的延续性动词,用于现在完成时。borrow—keepbuy—haveputon—wearcatchac
3、old—haveacoldgettoknow—knowgettosleep—sleep非延续性动词和延续性动词之间的转换2.转化为“be+形容词/副词/介词/名词”begin/start—beongoout—beoutclose—beclosedopen—beopengetto/arrive/reach—be(in)die—bedeadleave—beawayfinish—beoverfallsleep—beasleepjoin—bein/beamemberofbecome—bemakefriends—befriendscome/go/—be+相应的介词短语1.Sh
4、e_______thisbookfornearlythreeweeks.A.hasborrowedB.haslentC.hasboughtD.haskept2.Tenyearshaspassed____theCCTVeventPeopleWhoMovedChinatookplacein2002.A.whenB.whileC.beforeD.sinceExercises√√4aRewritethesentencesusingfororsince.JimisinJapan.Hearrivedtherethreedaysago.2.Theyareveryhungry.Th
5、eirlastmealwastenhoursago.Theyhaven’teatenfortenhours/sincetenhoursago.JimhasbeeninJapanforthreeyears.3.Ihaveacamera.Iboughtitin2009.4.IknowAnna.Ifirstmetherthreeyearsago.5.Lindaisill.ShebecameillonMonday.Ihavehadacamerasince2009.IhaveknownAnnforthreeyears/sincethreeyearsago.Lindahasbe
6、enillsinceMonday.4bFillintheblankswiththecorrectformsoftheverbsinbrackets.I_______________(neverbe)tothewaterparkbefore.Iwantto_____(go)nextmonthbeforetheweathergetstoocold.2.They_________________(neverown)anypets,butthey___________(alwayswant)tohaveadog.haveneverbeengohaveneverownedal
7、wayswant3.We_________(have)apianosincelastNovember.We_______(buy)itfromtheLifamilywhentheymovedtotheUSlastyear.4.CathyandAmy____________(notbe)backtotheirhometownfortwoyears.They______(miss)theirhometownalotandhopetovisittheplacenextyear.havehadboughthaven’tbeenmiss5.Thismuseum______
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