since和for的用法.pdf

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1、sincesince 和和 forfor 的用法的用法(用于现在完成时用于现在完成时)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,how long,so far,these days 等。1.since:a).since+时间点年代时刻数一段时间+agob).b).现在完成时：主句现在完成时：主句(主语主语+have/has+have/has+延续性动词的过去分词延续性动词的过去分词)+since+)+since+从句一般从句一般过去时过去时c)Its+时间段+since+短暂性动词的过去式d).时间段+has passed+since+短暂性动词的过去式for

2、+一段时间练习：用 since 和 for 填空1)_ two years2)_ two years ago3)_ last month4)_ 19995)_ yesterday6)_ 4 oclock7)_ 4 hours8)_ an hour ago9)_ we were children10)_ lunch time11)_ she left here12).He has lived in Nanjing _ the year before last.13).Ive known him _ we were children.14).Our teacher has studied Japa

3、nese _ three years.15).She has been away from the city _ about ten years.16).Its about ten years _ she left the city.2.for:for+2.for:for+一段时间一段时间=since+=since+一段时间一段时间+ago+ago3.与时间段连用时，短暂性动词应改为相应的延续性动词。1)come/go to-be at/in2)leave-be away from3)buy-have4)borrow/lend-keep4)open-be open5)close-be clos

4、ed6)die-be dead7)start/begin-be on8)join-be in/be a member of/be a soldier9)become be10)fall asleep-be asleep11)catch a cold have a cold12)have/has gone to have been in13)put on wear14)finish/end beover15)marry be married练习：.短暂性转换延续性1)His grandfather died two years ago.His grandfather has _ _ for tw

5、o years._two years _ his grandfather _.Two years _ _ _ his grandfather _.2)I became a teacher in 2000.I _ a teacher for _ _.3)The shop closed two hours ago.The shop _ _ _ for _ _.4)The door opened at six in the morning.The door _ _ _ for six hours.5)He left Fuzhou just now.He _ _ _ _ Fuzhou for five

6、 minutes.6)The film began two minutes ago.The film _ _ _ for _time flies!7)They borrowed it last week.They _ _ it since _ _.8)I bought a pen two hours ago.I _ _ a pen for _ _.9)They married in 1990.They _ _ _since _.10)The meeting finished at six.The meeting _ _ _ for six hours.11)My brother joined

7、the army two years ago.My brother _ _ a _ for _ _.My brother _ _ in _ _ for two years.12)I put on my glasses three years ago.I _ _ my glasses for _ _.选择1.Three years _since I _ you last time.A.have passed;metB.has passed;metC.passed;have met2.He has been here _ he left his hometown.A.sinceB.inC.for3

8、.He _the English-Chinese dictionary for about twenty years，but it is still newWhat a careful man!A.has boughtB.has borrowedC.has had4.-When did China _ the WTO-China _ the WTO for several years.A.join;has been a member ofB.join;has joinedC.take part in;have been in5.How long have you _ the bookA.bou

9、ghtB.borrowedC.kept6.How time flies!Several years _ since we started our middle school life.We willkeep the pleasant experiences in our minds.A.have passedB.has passedpass7.Mr Fan _ this bike in 2005.He _ it for 10 years.,has boughtbought,has hadC.bought,has had8.He _ in our school for 20 years and

10、he _ here in 1977.A.has taught;cameB.has taught;has comeC.taught;cameD.has teached;hascameare late.The film _ for five minutes.A.has begunB.has startedC.has been onD.beganhave been friends since _.A.five yearsyears agoC.five years before11.He has lived there _ 1992.A.sinceB.forC.after_ the bike for

11、a month.A.has boughtB.has hadC.has borrowedhishomefortenyearsA.hasleftB.leftfromC.hasbeenawayfrom_ the book for two weeks.A.borrowedB.lentC.keptD.bought_ the job since 2002.A:haveB:hadC:have hadhas been a student_two years.A in B on C after D for写出喜面动词的过去式过去式和过去分词过去分词becomebreakcomedrinkeatfeltforgetgivehearkeeplieleaveloseriseseeshinesitspeaktakethrowwinbeginbuydodrivefallflygetgohideknowleadlendriderunsellsingsleepswimthinkwakewrite