For和since在现在完成时的应用



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1、For和since在现在完成时中的用法区别点时间和段时间 5:30 5 years 3 minutes 2002 May 5 2 months点时间点时间段时间段时间段时间段时间点时间点时间点时间点时间段时间段时间since: (自自以来以来)1)since+过去的时过去的时间点间点He has stayed here since 5 oclock yesterday.2)since+ 时间段时间段+ agoHe has stayed here since 5 hours ago.3)since+ 从句(动词用过去时)从句(动词用过去时)She has taught English since
2、 he came here. for: (长达)长达)for+ 时间段时间段He has kept the book for 2 weeks.since , for 的用法的用法: Take notes 选用选用 forfor和和 sincesince填空填空: :1.We havent seen each other _ a long time.1.We havent seen each other _ a long time.2.His father has been in the Party _ 10 years 2.His father has been in the Party _
3、10 years ago.ago.3.The film has been on _ 20 minutes.3.The film has been on _ 20 minutes.4.Mr Green has worked here _ he came to 4.Mr Green has worked here _ he came to China.China.5.His grandparents have been dead _ several 5.His grandparents have been dead _ several years.years.forforsincesincefor
4、forsincesinceforfor下一页上一页主菜单思考 我买这本书三年了。I have bought this book for 3 years.I have bought this book since 3 years ago.区别延续性动词和短暂性动词 短暂性动词: 延续性动词:表能持续很长时间的某个动作或状态的动词。如:stand,teach等。 我买这本书三年了。I have had this book for 3 years.I have had this book since 3 years ago.短暂性动词与延续动词间的转换leave-come/go (to) -arri
5、ve (at/in)- get (to)-reach-buy-borrow-finish-join-start/begin-die-close-open-return-marry-become- be away (from) be (in/at) be (in/at) be (in/at)be (in/at)havekeepbe overbe in/be a/anbe onbe deadbe closedbe openbe backbe married be思考 我买这辆自行车还不到一年。我买这辆自行车还不到一年。 I havent had the bike for a year.I have