英语人教版八年级下册uni10 grammar.pptx

Unit 10Ivehadthisbikeforthreeyears.GrammarFocusPresentperfecttensewithsinceandfor 1.现在完成时表示动作或状态在过去已经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，开始，持续到现在可能还要持续下去，常和常和for,since引导的表示引导的表示一段时间的时一段时间的时间状语连用，谓语动词多用间状语连用，谓语动词多用延续性动词。延续性动词。如：如：live,teach,learn,work,study,beopen,beclosed,keep,have,beaway,bemarried,beasleep,beill等。等。如：如：Ihaveworkedheresince2002.自从自从2002年以来我就在这儿工作。年以来我就在这儿工作。TheyhavelearnedEnglishforthreeyears.他们学英语他们学英语3年了。年了。注意：注意：1）since+点点时间或一般过去时，时间或一般过去时，for+段时间，段时间，如：如：sincelastweek,fortwodays。1.Wehavelivedhere_1990.2.Howlonghaveyoustudiedhere?_5years.3.Theboyhashadabadcold_lastnight.4.Ihavewaited_twohours.sincesinceFor用用for和和since完成句子。完成句子。for5.Mr.Huanghaskeptthebooks_lastmonth.6.Ihavetaughtintheschool_Icamehere.7.Wehavebeenfriends_alongtime.8.IhavebeeninNanjing_eightyears.sincesinceforfor9.SallyhasbeenawayfromLondon_lastSaturday.10.Ourschoolhaschangedalot_thenewbuildingwasbuilt.11.Tommyhashadthismotorcycle_threeyears.12.Myparentshavebeenmarried_20years.sincesinceforfor2.短暂性动词短暂性动词(come,go,leave,buy)可可以用于现在完成时。但不能用于带有以用于现在完成时。但不能用于带有for或是或是since的肯定句中。的肯定句中。HehasleftBeijingforaweek.HehasnotleftBeijingyet.()()3.短暂性动词变为延续性动词短暂性动词变为延续性动词的现在完成的现在完成时构成举例：时构成举例：buyhave/hashadborrowhave/haskeptarrivehave/hasbeenin/atleavehave/hasbeenawayopenhave/hasbeenopenjoinhave/hasbeeninhave/hasbeenamemberofdiehave/hasbeendeadmarryhave/hasbeenmarriedcome/gohave/hasbeenin/atbegin/starthave/hasbeenonfinish/stophave/hasbeenoverfallasleephave/hasbeenasleepTheoldmandiedtwoyearsago.这个老人两年前死了。这个老人两年前死了。Theoldmanhasbeendeadfortwoyears.这个老人死了两年了。这个老人死了两年了。Heboughtacarfiveyearsago.他五年前买了一辆轿车。他五年前买了一辆轿车。Hehashadthecarforfiveyears.这辆轿车他买了五年了。这辆轿车他买了五年了。4a1.JimisinJapan.Hearrivedtherethreedaysago.2.Theyareveryhungry.Theirlastmealwastenhoursago.JimhasbeeninJapanforthreeyears.Theyhavebeenhungryfortenhours/sincetenhoursago.Rewritethesentencesusingfororsince.3.Ihaveacamera.Iboughtitin2009.4.IknowAnna.Ifirstmetherthreeyearsago.5.Lindaisill.ShebecameillonMonday.Ihavehadacamerasince2009.IhaveknownAnnforthreeyears/sincethreeyearsago.LindahasbeenillsinceMonday.4bFillintheblankswiththecorrectformsoftheverbsinbrackets.1.I_(neverbe)tothewaterparkbefore.Iwantto_(go)nextmonthbeforetheweathergetstoocold.2.They_(neverown)anypets,butthey_(alwayswant)tohaveadog.haveneverbeengohaveneverownedhavealwayswanted3.We_(have)apianosincelastNovember.We_(buy)itfromtheLifamilywhentheymovedtotheUSlastyear.4.CathyandAmy_(notbe)backtotheirhometownfortwoyears.They_(miss)theirhometownalotandhopetovisittheplacenextyear.5.Thismuseum_(be)hereforover20years.It_(be)oneoftheoldestbuildingsinthissmalltown.havehadhavenotbeen/haventbeenboughtmisshasbeenisFillinthequestionsandasktwostudents.Thencompletethechart.(4c)1.Doyouhavea(n)_?Howlonghaveyouhadit?2.Doyouowna(n)_?Howlonghaveyouownedit?Group workThingsHowlongTonyfavoritebook fortwoyearsbasketballsincehewas10yearsoldStudent1Student2课时重点回顾课时重点回顾1.现在完成时的特殊疑问句的结构：现在完成时的特殊疑问句的结构：疑问词疑问词+have/has+主语主语+过去分词过去分词+其他成分其他成分。询问拥有时间的疑问词。询问拥有时间的疑问词用用howlong。2.介词介词for后接一后接一段时间段时间，指某个动作或，指某个动作或情况到现在为止已持续了多久。情况到现在为止已持续了多久。3.since有两种用法，分别是：有两种用法，分别是：作为介词，接一个时间名词；作为介词，接一个时间名词；作为连词，引导一个时间状语从句。作为连词，引导一个时间状语从句。since表示表示“自自以来以来”，指某个动，指某个动作作或情况从过去某一或情况从过去某一点时间点时间一直持续到一直持续到现在。现在。一、单项选择。一、单项选择。1.MissLiuhastaughtEnglish_shecamehere.(2012四川雅安四川雅安)A.sinceB.asC.whenD.for2.Tenyearshaspassed_theCCTVeventPeopleWhomovedChinatookplacein2002.(2012陕西陕西)A.whenB.whileC.beforeD.since3.MysisterhaslearntEnglish_.(2013四川雅安四川雅安)A.fortwelveyearsagoB.sinceshewasfourC.twelveyearsagoD.attheageoffour4.She_thebook_twodaysago.(2013黑龙江绥化黑龙江绥化)A.hasborrowed;sinceB.haskept;sinceC.kept;for5.Didyouborrowthecomicbookfromthelibrary?Yes,I_itforthreedays.Illreturnitthisafternoon.(2013贵州安顺贵州安顺)A.borrowedB.keptC.haveborrowedD.havekept三、按要求改写句子。三、按要求改写句子。1.Theclasswasovertenminutesago.(同义句转化同义句转化)Theclass_fortenminutes.2.Hisgrandpadiedin2004.(同义句转化同义句转化)Hisgrandpa_for10years.hasbeenoverhasbeendead3.Theexhibitionhasbeenonforthreedays.(同义句转化同义句转化)Theexhibition_threedaysago.4.Myparentsgotmarried25yearsago.(同义句转化同义句转化)Myparents_for25years.started/beganhavebeenmarried5.IboughttheMP3lastweek.(同义句转化同义句转化)I_theMP3foraweek.6.KittyjoinedtheReadingClublastyear.(同义句转化同义句转化)Kitty_theReadingClubsincelastyear.havehadhasbeenamemberof7.MyunclebegantoteachChinesewhenhewas23.(同义句转化同义句转化)Myunclehas_Chinese_hewas23.8.Wehaventseeneachotherfor2years.(同义句转化同义句转化)Itstwoyears_we_last.9.Themeetinghasbeenoverforanhour.(对划线部分提问对划线部分提问)_hasthemeetingbeenover?taughtsincesincemetHowlong四、根据汉语提示，完成下面的句子。四、根据汉语提示，完成下面的句子。1.你上个星期五就借了我的书，还没有看你上个星期五就借了我的书，还没有看完吗？完吗？You_mybook_lastFriday.Haventyoufinishedreadingit?2.我从七点起就开始等了。我从七点起就开始等了。Ihavewaited_.3.她已经到达公司半个小时了。她已经到达公司半个小时了。Shehasbeeninthecompany_.havekeptsincesincesevenoclockforhalfanhour4.他离开家已经他离开家已经10年了。年了。Hehasbeenawayfromhome_.5.足球赛已经开始足球赛已经开始15分钟了。分钟了。Thefootballmatch_15minutes.6.他从去年起加入了篮球俱乐部。他从去年起加入了篮球俱乐部。HehasbeenamemberoftheBasketballClub_.fortenyearshasbeenonforsincelastyear Thank you!