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Unit4Thenandnowgymmonthsagoyearsagogocyclinglastmonth火眼金睛：Readquickly(快速、正确地读出单词)ice-skategrasslastyeardininghallReviewplaybadmintonTheSchoolNowTheSchoolTwentyyearsago...yearsago：......年前•IwenttoBeijingtwoyearsago.•IwenttoHangzhoutenyearsago.•......月前•......天前daysagomonthsago练习：1、三天前我去了钓鱼。2、两个月以前我打了羽毛球。Thingsaredifferentnow.TheSchoolNowTheSchoolTwentyyearsagoThereisatallbuilding.Therewasasmallbuilding.Thereisaplayground.Therewasnoplayground.What’syourschoolliketenyearsago?十年前你的学校是什么样子的？Therewasnogyminmyschooltenyearsago.Therewasnodininghallinmyschooltenyearsago.Therewasnograssinmyschooltenyearsago.TherewerenocomputerorInternetinmyschooltenyearsago.Therebe句型表达变化:•现在时：Thereis+单数...•Thereare+复数....•过去时：Therewas+单数....•Therewere+复数....检测练兵1、Thereanappleonthetable.A、isB、areC、were2、Theretwoapplesonthetable.A、isB、areC、was3、Therenogymsinmyschooltwoyearsago.A、isB、wasC、were4、Therenolibraryinmyschooltwoyearsago.A、isB、wereC、was（A）（B）（C）（C）Before,hewasquietNow,heisactive.Whatdoyouthinkofhimbeforeandnow?Beforeshewasshort.Nowsheistall.Whoishe?PresdentBefore,hewasastudent.Nowheisapresdent.Whatdoyouthinkofhimbeforeandnow?Before,hecouldn’trideabikewell.Now,hegoescyclingeveryday.Beforeitwasanegg.Nowitisachick.Beforeitwasraining.Now….itissunny.Beforetherewasabuilding.Now….thereisapake.Beforethecatwasonthechair.Now….itisunderthechair.Before：一般过去时动词用过去式Now:表示现在的状况动词用现在时检测练兵用下列所给词的适当形式填空：1、Therewerenotany____________(computer)atall.2、BeforeI_____(be)short.3、There______(be)nogyminmyschooltenyearsago.computerswaswas课堂作业：•写出5个过去和现在比较的句子。•例如：•Iwasshortbefore.NowIamtall.•Thetreewasyellowbefore.Nowitisgreen.•Therewasabuildingbefore.Nowthereisalake.