现在完成时since和for的区分课

TheuseofsinceandforinthepresentperfecttenseTheGrammarClassrelativesandtheirjobs(7B,Unit3)ByKellyShenGuessnamesofthesejobs!WEBDESIGNScookteacherengineerandarchitectpolicemanIhavebeenateacherforoneyear.Shehasbeenateachersince1997.Shehasbeenateacherforquiteafewyears.Hehasbeenapolicemanfortwelveyears.Shehasbeenanarchitectfortenyears.Myfatherhasbeenanengineersince2004.Hehasbeenanengineerforseveralyears.Scanthetext,relativesandtheirjobs,andunderlinesentencessimilartothissentence.CompareConcludeShehasbeenateachersince1997.Shehasbeenateacherforquiteafewyears.Hehasbeenapolicemanfortwelveyears.Shehasbeenanarchitectfortenyears.Myfatherhasbeenanengineersince2004.Hehasbeenanengineerforseveralyears.Payattentiontothetimeadverbialsafter“since”and“for”.Since:(自……以来)since+atimepointinthepast（过去某个时间点）For:(长达)for+aperiodoftime(一段时间)LeftcarrotsfiveyearsagoIcamehereSince+Aperiodoftime+agoAclauseinsimplepasttenseSince:(自……以来)since+atimepointinthepast（过去某个时间点）since+aperiodoftime+agosince+aclauseinsimplepasttenseFor:(长达)for+aperiodoftime(一段时间)ABomb-disposalExpertPracticeSinceFor5hoursagoalongtime1997Ilefthome.5hoursago5hours5hoursseveralminutesalongtime2015CompareConcludeShehasbeenateachersince1997.Shehasbeenateacherforquiteafewyears.Hehasbeenanengineerforseveralyears.Hehasbeenmarriedforsixyears.ShehaslivedinShanghaisincefiveyearsago.HehasworkedinahospitalsincehecametoShanghai.Findthesimilarspecialtyinthesesentences.Payattentiontotheverbstheyuse.RoughConclusion:Whenweuse“since”and“for”inpresentperfecttense,theverbinthatsentenceshouldbedurative.Durativeverbschangeinstantverbstodurativeverbsinpresentperfectsentenceswithsinceorforcometohave/hasbeeningetmarriedhave/hasbeenmarriedbuyhave/hashadleavehave/hasbeenawayborrowhave/haskeptbeginhave/hasbeenonfinishhave/hasbeenoverExceptions?RoughConclusion:Whenweuse“since”and“for”inpresentperfecttense,theverbinthatsentenceshouldbedurative.CompareConcludeHehasbeenanengineerforseveralyears.Hehasbeenmarriedforsixyears.ShehaslivedinShanghaisincefiveyearsago.HehasworkedinahospitalsincehecametoShanghai.Hehasn’tcomehereforoneyear.Ihaven’theardanynoisesinceIslept.Comparetheroughconclusionwemadebeforeandthesentencesshownintherightside.Findtheexception.Payattentiontotheverbstheyuse.RoughConclusion:Whenweuse“since”and“for”inpresentperfecttense,theverbinthatsentenceshouldbedurative.Conclusion:Whenweuse“since”and“for”inpresentperfecttense,theverbinapositivesentencemustbedurative.Whenweuse“since”and“for”inpresentperfecttense,theverbinanegativesentencecanbeeitherdurativeorinstant.PPT模板下载：行业PPT模板：节日PPT模板：素材下载：背景图片：图表下载：优秀PPT下载：教程：教程：教程：资料下载：课件下载：范文下载：试卷下载：教案下载：论坛：’tleftmyhometownforsixyears.Correctfalsesentences.Thisfilmhasbegunforonehour.Thisfilmhasn’tbegunsincewearrived.Ihavekeptthisbookforsevenyears.beenmarriedbeenonbeeninhad✔✔✔AninvestigationonworkingexperiencesofXXX’sfamilyRolePlayAnnouncer:ThepolicemanwantstomakeaninvestigationontheworkingexperienceofXXX’sfamilymembersinordertofulfillthecitizens’information.Whattodo:apairworkThepoliceman:askquestions,writedownthekeyinformation,andmakeanoralreportaboutintroducingworkingexperiencesofXXX’sfamily.XXX(theinterviewee):answerthequestions.Then,maketherolereversal,sobothofthemshouldmakeanoralreportonhisorherdeskmate.thepolicemanmayask:Whatdoyourrelatives(father…)do?Howlonghashebeena…?Whathavehedoneinthisjob?Howlonghasn’tyouseeyourauntbecausesheisdoing?…XXXmayanswer:Myfatherhasbeena…for….Shehas….SummaryHOMEWORKWritedownyourreportontheworkingexperienceofyourinterviewee’srelativesbasedonwhatyouhaveinterviewedintheclassattheleastof30words.Asurvey:Interviewsomerelativesorneighborsandfindoutwhattheirjobsare,whattheydo,andhowlongtheyhaveworkedfortheoralreportnextlesson.THANKYOU!ByKellyShenPractice:ACollecting-CarrotsGame2015fiveyearsagosixmonths7:30May2sevenyearsIcameheretwodecadesatimepointinthepastaperiodoftime