Since 和 for 的用法

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1、Since和for的用法表示过去已经开始持续到现在的动作或状态常用的时间状语有：for,since,howlong,sofar,thesedays等。Since+过去点的时间，for+一段时间(数词+量词)，此划线部分用howlong提问。一、since短语或从句表示过去的动作延续至今，since之后的时间为一点。如：Mr.Smithhasworkedheresince1984.1984年以来，史密斯先生一直在这工作。He’slearnedabout5,000Englishwordssincehewenttocollege.他上大

2、学以来大约学了五千个英语单词。二、for短语表示动作延续多长时间，for的宾语为时间段。如：Wehaveknowneachotherfortwentyyears.我们认识有二十年了。Ihaven’tseenherforalongtime.我好久没有见到她了。练习：用since和for填空1)______twoyears2)_______twoyearsago3)_______lastmonth4)______19995)_______yesterday6)_______4o’clock7)______4hours8)_______

3、anhourago9)_______wewerechildren10)_____lunchtime11)______shelefthere1.HehaslivedinNanjing________theyearbeforelast.2.I’veknownhim__________wewerechildren.3.OurteacherhasstudiedJapanese_________threeyears.4.Shehasbeenawayfromthecity___________abouttenyears.5.It’sabout

4、tenyears__________sheleftthecity.2.短暂性转换延续性①arriveat/insw.getto/reachsw.come/go/movetosw.→beinsw./atschool/athome/onthefarm/behere/bethere1)HegottoBeijingfiveminutesago.He__________________________Beijingfor__________________.2)ImovedtotheUSAlastyear.I________________

5、__________theUSAsince____________________.3)Iwenthomeyesterday.I________________________homefor___________________.4)Theycameherelastweek.They__________________heresince___________________.②come/goback,return→bebackcome/goout→beout1)Hecameouttwoyearsago.He____________

6、________________for____________________.2)WereturntoFuzhouyesterday.We_________________________toFuzhousince__________.③become→be1)Ibecameateacherin2000.I__________________ateacherfor__________________.2)Theriverbecamedirtylastyear.Theriver__________________dirtyfor__

7、_________________.④close→beclosedopen→beopen1)Theshopclosedtwohoursago.Theshop__________________________for__________________.2)Thedooropenedatsixinthemorning.Thedoor________________________forsixhours.⑤getup→beupdie→bedeadleavesw.→beawayfromsw.fallasleep/gettotsleep→

8、beasleepfinish/end→beovermarry→bemarried1)Igotuptwohoursago.I________________________since________________.2)HeleftFuzhoujus