unit 1 topic 3 section a

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1、Unit1TheChangingWorldTopic3Theworldhaschangedforthebetter.SectionA黑龙江省双城市第二中学高艳玲---Haveyou_____beentoBeijing?---Yes,Ihave.Ihave_____comeback.---No,Ihaven’t.Ihave_____beenthere.2.---HowlonghaveyoubeeninBeijing?---Ihavebeentheretherefortwoweeks.---Ihavebeentheresincelastweek.everjustneverWho

2、candescribeBeijing?InthepastNowadaysNewYorkWhattookplaceinNewYork?Asamatteroffact/Infact,Lucyisgoodatdancing.Asamatteroffact/Infact,Iamstrong.asamatteroffact=infact1bListento1aandtickwhatwasmentionedaboutNewYork.Inthepastterribletrafficdirtystreetsunfriendlypeopledangeroustolivelessshoppin

3、gcentersNowadaysbeautifulparkscleanandfreshairhugemarketsfamousmuseumsgoodschoolsexcellentrestaurants1aListen,lookandsay1cWorkinpairsanddescribeNewYorktoyourpartnerbasedon1b.Youmaystartlikethis:A:HowmuchdoyouknowaboutthetrafficinNewYork?B:Iheardthatthetraffictherewasterrible.Doyouhaveanyid

4、easaboutthestreetsthere?A:…Completethesentenceswithsinceorfor.1.YouhavebeeninNewYork_____alongtime.2.Thecityhasimprovedalot_____Icamehereafewyearsago.forsinceYouhavebeeninNewYorkforalongtime.foralongtimecametoNewYorkpresentpastsb.have/hasbeenin...某人一直在……e.g.Ihavebeeninthenewschoolforaweek.

5、foraweeklastweekpresentpastfor+时间段...,butthecityhasimprovedalotsinceIcamehereafewyearsago.sinceIcamehereafewyearsagocameherepresentpastsince+从句（从句谓语动词用过去式）e.g.Sheworksintheschoolsince1995.since1995livedpresentpastsince+时间点e.g.HehaswaitedforTomsincetwohoursago.sincetwohoursago8:00presentpas

6、tsince+时间段+ago10:00Ihaveworkedintheschoolforthreeyears.=Ihaveworkedintheschoolsincethreeyearsago.=Ihaveworkedintheschoolsince2011.=IhaveworkedheresinceIcametotheschool.for+时间段since+时间段+agosince+时间点since+从句3Lookcarefullyandthinkaboutthedifferencesbetweensinceandforin1a.Thencompletethesenten

7、ceswithsinceorforandlistenandcheck.1.IhavelivedinBeijing______threeyears.______2011.2.HehaswaitedforTom______twohoursago.______twohours.3.Wehavelearnedchemistry___onemonth.____thenewtermbegan.forforforsincesincesincen.化学n.学期Fillintheblankswithfororsince.1.Hisf