比较since和forsince+时间点,用来说明动作起始时间for+时间段,用来说明动作延续时间长度。
Ihavelivedhereformorethantwentyyears.
IhavelivedheresinceIwasborn.HehasleftChinaforfiveyears.()HehasnotbeeninChinaforfiveyears.()(13湖南)27.—Haveyouheardabouttherecentelection?—Sure,it____theonlythingonthenewsforthelastthreedays.A.wouldbeB.is C.hasbeenD.willbe×√C第28页，共63页，星期日，2025年，2月5日八.过去完成时?(ThepastperfectTense)结构:had+过去分词概念：表示过去的过去
----|--------------|---------|----过去之前过去现在将来IgraduatedfromJuniorMiddleSchoolinJuly2008.Ihadstayedtherefor3yearswhenIgraduated.第29页，共63页，星期日，2025年，2月5日Whenthepolicearrived,thethieves_________________(runaway).WhenIcameintotheclassroom,mydearstudents______________(begin)reading.hadrunawayhadbegun第30页，共63页，星期日，2025年，2月5日ExercisesIusually____upat6:00,butyesterdayI______upat7:00andtomorrowI_________upat6:30.(get)Listen!Someone____________(knock)atthedoor.I___________(be)inBeijingfortwoyears.Howoften_____Andy_______(surf)theinternet?Hefellasleepwhilehe___________(read)abook.groupcompetitiongetwillgetgotisknockinghavebeendoessurfwasreading第31页，共63页，星期日，2025年，2月5日6.I________never_______(hear)ofthatmanbefore.7.Mybrotheroften_________(go)forwalkslastsummer.8.Lilysaidshe_______(put)onthenewdressthenextday.9.______thestory________(happen)inLondonin1949?10.What______hismother______(do)whenheopenedthedoor?haveheardwentwouldDidhappenwasdoing第32页，共63页，星期日，2025年，2月5日11.Ifit______________(notrain)tomorrow,they___________(go)fishing.12.______yourmother________thepianoeverySunday?13.They_______(not)callyouthedayaftertomorrow.14.Tom_____________(work)theresincetwoyearsago.15.BythetimeI_________(walk)intotheclassroom,theteacher___________(start)teaching.