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Unit4ThenandnowIntroducebe(是)----was,werebecome(变成)----becamebring(带来)----broughtbuild(建筑)----builtbuy(买)----boughtcan(能)----couldcome(来)----camedo(做)----didfly(飞)----flewgo(去)-----wenthave(有)----hadlose(丢失)-----lostread(读)-----readrun(跑)----ransay(说)-----saidsee(看见)----sawtake(拿到)----tooktell(讲述)----told动词过去式不规则变化总结:Words名词,表示“电话”。常用短语：usethetelephone使用电话onthephone在打电话eg：Whynotjustusethetelephone?为什么不直接使用电话？小练习：（）te______ph___neA.el;iB.le;oBtelephone/'telɪfəʊn/Words名词,表示“办公室”。常用短语：intheoffice在办公室neartheoffice在办公室旁边eg：Thereisapostofficenearthesupermarket.在超市附近有个邮局。小练习：worked,in,he,office,the,yesterday.______________________________Heworkedintheofficeyesterday.office/'ɒfɪs/Words名词,表示“手机、移动电话”。常用短语：amobilephone一部移动电话eg：Thereissomethingwrongwithhismobilephone.他的手机出了点问题。小练习：现在几乎每个人都有一部电话。__________________________Nowalmosteveryonehasamobilephone.mobilephoneExpressionsago指的是从现在起到过去时间的某一点的一段时间。Twentyyearsago,sheboughtthingsfromshops.20年前,她从商店里买东西。eg：Fiveyearsago，wevisitedYunnan.五年以前,我们参观了云南。小练习:Hewants___________(bring)someEnglishbookstoschool.They__________(see)manybeautifulbirdslastweek.broughtsawExpressions某段时间+ago表示······前,一般过去时的常见的时间状语。Twentyyearsago.20年前。eg:LittleTomwasbornfiveyearsago.Nowheisfiveyearsold.LittleTom五年前出生,现在他五岁了。小练习:LiuTaocouldreadwhenhewasyoung.(改为否定句)___________________________________________NowMrsGreenhasatelephone.(对画线部分提问)___________________________________________LiuTaocouldn’treadwhenhewasyoung.WhatdoesMrsGreenhavenow?DialoguesRetellingthetext!Expand(一)规则动词的过去式一般过去时的构成1.一般情况下,在动词原形后面加-ed。look→lookedplay→playedstart→startedvisit→visited2.以不发音e结尾的动词,在词尾直接加-d。live→liveduse→usedExpand(一)规则动词的过去式一般过去时的构成3.以“辅音字母+y”结尾的动词,先将y改为i,再加–ed。study→studiedtry→triedfly→flied4.以重读闭音节（即辅音＋元音＋辅音）或r音节结尾,末尾只有一个辅音字母的动词,要先双写这个辅音字母后,再加–ed。stop→stoppedplan→plannedprefer→preferredExpand(二)不规则动词的过去式一般过去时的构成1.改变动词中的元音begin→begandrink→drankknow→knew2.变词尾的–d为–tbuild→builtlend→lentsend→sentExpand(二)不规则动词的过去式一般过去时的构成3.与动词原形一样cut→cutput→putcost→cost4.变-ay为-aid(少数动词)say→saidpay→paidlay→laidExpand(二)不规则动词的过去式一般过去时的构成5.采用不同词根:sell→soldteach→taughtbuy→bought6.其他am/is→wasare→werehave/has→hadSummarytelephoneofficemobilephone···agoExercise1.----Didyoulikethefilm?-----_________.A.Yes,itwasinteresting.B.Yes,Iwas.C.No,Idon’t.2.________there_________treesonthefarmnow?A.Were,anyB.Are,someC.Are,anyAAExercise3.There_________amobilephoneonthedesk.A.areB.wereC.was4.Doyoulike__________piano?A.playB.playingC.playingtheCCExercise5.YangLingandhisfriend_________tomusiclastweek.A.didn’tlistenedB.didn’tlistenC.doesn’tlisten6.Ioften_________flowersinthemorning.A.watersB.waterC.wateredBAHomeworkWriteapassagetitled“···yearsago”.一般疑问句Didyoucatchanyfish?Yes,Idid.句型结构Did+主语+动词原形+其它？Yes，主语+did.No,主语+didn’t.特殊疑问句Whatdidyoudothere?Howwasyourholiday,Mike?WewenttotheBound.Itwasfun.句型结构特殊疑问词+一般疑问句+？主语+动词过去式规则与不规则变化。