八年级英语下册Unit10Ivehadthisbikeforthreeyears语法专题-GrammarFocus习题课件人教新目标版.ppt

Unit10Ivehadthisbikeforthreeyears.,八年级下册英语（人教版）,单元语法专题GrammarFocus,since和for的区别since和for都用于现在完成时中，其中since后面可接过去的时间点，也可接“一段时间ago”，还可以接从句；for后面只能接“一段时间”。如：Myparentshavelivedinthiscitysince2009.我的父母从2009年起就居住在这座城市。Shehasbeenadoctorsincetwoyearsago.她从两年前就当医生了。Lilyhashadthetoybearfortwoyears.莉莉已经有这个玩具熊两年了。,【注意】(1)终止性动词也称非延续性动词，可以用于现在完成时，说明某个动作的结果还存在，但不能与表示一段时间的状语连用。如：TheWhiteshavecomeback.(正)TheWhiteshavecomebackfortwodays.(误)(2)在否定句中，终止性动词可以与表示一段时间的状语连用。如：Ihaventheardfrommyfriendforthreeweeks.我已经有三周没有收到我朋友的来信了。,【拓展】当终止性动词与表示一段时间的状语相矛盾时，常用以下方法进行转换：(1)用ago把现在完成时的句子改为一般过去时。如：Hehasleftthevillageforsixdays.(误)Heleftthevillagesixdaysago.(正)(2)用“一段时间haspassedsince一般过去时”句型改写。如：Shehasborrowedthebookfortwoweeks.(误)Twoweekshaspassedsincesheborrowedthebook.(正),(3)用“Ithasbeen一段时间since一般过去时”句型改写。如：Hisgrandfatherhasdiedforafewyears.(误)Ithasbeenafewyearssincehisgrandfatherdied.(正)(4)用系表结构(be形容词副词)改写或用相应的延续性动词代替终止性动词。如：come/arrive/gobein/at,begin/startbeon，finish/end/stopbeover，openbeopen,diebedead，leavebeaway，closebeclosed，fallasleepbeasleep，joinbeamemberof/bein，becomebe，buyhave，borrowkeep，gettoknowknow，putonwear，catchacoldhaveacold，comebackbeback,一、用括号内所给单词的适当形式填空。1We_(notsee)eachothersinceI_(leave)theuniversity.2Thehospital_(be)herefor10years.It_(be)thetallestbuildinginourcity.3She_(neverbe)totheamusementparksincetwoyearsago.Herparents_(take)hertherenextweek.4IdontwanttogiveawaymyfootballshirtsalthoughI_(notplay)forawhilenow.5I_(nevervisit)theGreatWallbefore.Iwant_(visit)itoneday.,haventseen,left,hasbeen,is,hasneverbeen,willtake,haventplayed,havenevervisited,tovisit,二、单项选择。6(导学号：38274041)(齐齐哈尔中考)Howlongisitsincehe_thisschool?He_forthreeyears.Ahasleft;hasleftBleft；hasbeenawayCleaves;hasleft7(毕节中考)Itsnicetoseeyouagain.We_eachothersince2016.AwontseeBhaventseenCdontseeDdidntsee,B,B,8Howlong_you_inLiping，Mr.Green?Sincelastmonth.Adid；comeBdo;comeChave；comeDhave;been9(江西中考)SincewebegantousetheInternet,ourlives_alot.AchangeBhadchangedCwillchangeDhavechanged,D,D,10(北京中考)Lilyismyclassmate.We_eachothersinceshecametoourschool.AknowBknewChaveknownDwillknow,C,三、按要求完成下列句子。11HerparentscametoChinafiveyearsago.(改为同义句)Herparents_China_fiveyears.12Myfatherlefthomethedaybeforeyesterday.(用fortwodays改写句子)Myfather_homefortwodays.13Susanbou