八年级英语下册 Unit 10 Ive had this bike for three years Section A3课件 （新版）人教新目标版.ppt

unit10i vehadthisbikeforthreeyears sectiona3grammarfocus 4c 1 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引导的时间状语可以相互转换 presentperfecttense 现在完成时 e g myunclehasworkedatthisfactoryfortenyears myunclehasworkedatthisfactorysincetenyearago i velivedheresince1990 自从1990年以来我就住在这里 ihaven tseenhimforthreeyears 我三年没有看见他了 含有for 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 sbeenatthisschoolsincefiveyearsago 自从五年前以来她就在这个学校 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 wearcatchacold 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 beaway finish beoverfallsleep beasleepjoin bein beamemberofbecome bemakefriends befriendscome go be 相应的介词短语 1 she thisbookfornearlythreeweeks a hasborrowedb haslentc hasboughtd haskept2 tenyearshaspassed thecctveventpeoplewhomovedchinatookplacein2002 a whenb whilec befored since exercises 4a rewritethesentencesusingfororsince jimisinjapan hearrivedtherethreedaysago 2 theyareveryhungry theirlastmealwastenhoursago theyhavebeenhungryfortenhours sincetenhoursago jimhasbeeninjapanforthreeyears 3 ihaveacamera iboughtitin2009 4 iknowanna ifirstmetherthreeyearsago 5 lindaisill shebecameillonmonday ihavehadacamerasince2009 ihaveknownannforthreeyears sincethreeyearsago lindahasbeenillsincemonday 4b fillintheblankswiththecorrectformsoftheverbsinbrackets i neverbe tothewaterparkbefore iwantto go nextmonthbeforetheweathergetstoocold 2 they neverown anypets butthey alwayswant tohaveadog haveneverbeen go haveneverowned alwayswant 3 we have apianosincelastnovember we buy itfromthelifamilywhentheymovedtotheuslastyear 4 cathyandamy notbe backtotheirhometownfortwoyears they miss theirhometownalotandhopetovisittheplacenextyear havehad bought haven tbeen miss 5 thismuseum be hereforover20years it be oneoftheoldestbuildingsinthissmalltown hasbeen is 4c f