Since/For的区别：印江县朗溪镇初级中学严俊YouhavebeeninNewYorkforalongtime.foralongtimecametoNewYorkpresentpastsb.have/hasbeenin...某人一直在……e.g.Ihavebeeninthenewschoolforaweek.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.sincetwohoursago8:00presentpastsince+时间段+ago10:00Completethesentenceswithsinceorfor.1.YouhavebeeninNewYork_____alongtime.2.Thecityhasimprovedalot_____Icamehereafewyearsago.forsinceIhaveworkedintheschoolforthreeyears.=Ihaveworkedintheschoolsincethreeyearsago.=Ihaveworkedintheschoolsince2011.=IhaveworkedheresinceIcametotheschool.for+时间段since+时间段+agosince+时间点since+从句3Lookcarefullyandthinkaboutthedifferencesbetweensinceandforin1a.Thencompletethesentenceswithsinceorforandlistenandcheck.1.IhavelivedinBeijing______threeyears.______2011.2.HehaswaitedforTom______twohoursago.______twohours.3.Wehavelearnedchemistry___onemonth.____thenewtermbegan.forforforsincesincesincen.化学n.学期Fillintheblankswithfororsince.1.Hisfatherhasbeendead______hewastenyearsold.2.Michaelhasbeenawayfromthearmy______sixyears.3.HehasbeeninChongqing_______2003.4.Mybrotherhashadacar______twomonths.5.Tomhaskeptabook______5:00a.m.sinceforsinceforsinceThankYou!
