現(xiàn)在完成時Since和for的用法

現(xiàn)在完成時Since和for的用法Since和for的用法表示過去已經(jīng)開始持續(xù)到現(xiàn)在的動作或狀態(tài)常用的時間狀語有：for,since,howlong,sofar,thesedays等。Since+過去點(diǎn)的時間，for+一段時間(數(shù)詞+量詞)，此劃線部分用howlong提問。一、since短語或從句表示過去的動作延續(xù)至今，since之后的時間為一點(diǎn)。如：Mr.Smithhasworkedheresince1984.1984年以來，史密斯先生一直在這工作。He’slearnedabout5,000Englishwordssincehewenttocollege.他上大學(xué)以來大約學(xué)了五千個英語單詞。二、for短語表示動作延續(xù)多長時間，for的賓語為時間段。如：Wehaveknowneachotherfortwentyyears.我們認(rèn)識有二十年了。Ihaven’tseenherforalongtime.我好久沒有見到她了。練習(xí)：用since和for填空1)______twoyears2)_______twoyearsago3)_______lastmonth4)______19995)_______yesterday6)_______4o’clock7)______4hours8)_______anhourago9)_______wewerechildren10)_____lunchtime11)______shelefthere1.HehaslivedinNanjing________theyearbeforelast.2.I’veknownhim__________wewerechildren.3.OurteacherhasstudiedJapanese_________threeyears.4.Shehasbeenawayfromthecity___________abouttenyears.5.It’sabouttenyears__________sheleftthecity.2.短暫性轉(zhuǎn)換延續(xù)性①arriveat/insw.getto/reachsw.come/go/movetosw.→beinsw./atschool/athome/onthefarm/behere/bethere1)HegottoBeijingfiveminutesago.He__________________________Beijingfor__________________.2)ImovedtotheUSAlastyear.I__________________________theUSAsince____________________.3)Iwenthomeyesterday.I________________________homefor___________________.4)Theycameherelastweek.They__________________heresince___________________.②come/goback,return→bebackcome/goout→beout1)Hecameouttwoyearsago.He____________________________for____________________.2)WereturntoFuzhouyesterday.We_________________________toFuzhou③become→be1)Ibecameateacherin2000.I__________________ateacherfor__________________.2)Theriverbecamedirtylastyear.Theriver__________________dirtyfor___________________.④close→beclosedopen→beopen1)Theshopclosedtwohoursago.He__________________________________theleaguefortwoyears.2)Mybrotherjoinedthearmytwoyearsago.Mybrother____________________a___________for______________________.Mybrother______________________in_______________________fortwoyears.3.漢譯英1)這本字典我已買了三年了。2)他離開中國三年了。3)我認(rèn)識他們五年了。4)他們已去了美國五年了。5)自從他搬到福州，他就住這兒了。6)他們已經(jīng)結(jié)婚10年。7)我妹妹成為一個大學(xué)生已經(jīng)三年。8)這會已開了多長時間了?9)這門已經(jīng)關(guān)了兩天了。10)我入團(tuán)2年了。I________________________________twoyearsago.I_____________________a______________________fortwoyears.I_____________________a___________of___________________fortwoyears.I_________________________________the__________fortwoyears.11)自從1999年以來他們就認(rèn)識。12)我來到農(nóng)場已5年了。4.劃線提問1)Ihavebeentherefortwodays._____________________________you____________________?2)Myfatherhaslivedheresince2000.____________________________yourfather___________________?