1、短暂性动词短暂性动词延续性动词延续性动词Module 4 Unit 3短暂性动词也称做终止性动词、非延续性动词或瞬间动词，表示动作不能延续，只是一瞬间就结束的动作。常见的短暂性动词有：come,go,arrive,reach,see,hear,close,open,leave,begin,start,lose,buy,fall,join,die,become,borrow,get up等。用法：、它们可以用于完成时态，说明某个动作的结果还存在He has come back.The film has begun.2、这类动词不能和表示一段时间的状语连用，但在否定句中，非延续性动词也可以用表示一
2、段时间的状语来修饰I havent heard from Uncle Wang for a long time.We havent seen him since 1992.She hasnt left home all her life.3、还可改用一般过去时来表达 He came back a week ago.4、也可用“It is 一段时间since”句型 来表达It is a week since he came back.非延续性动词可以转换成延续性动词，主要有以下几种：、用相应的延续性动词；buy-have,borrow-keep,put on-wear,catch/get a c
3、old-have a cold,come/go/become-be.、转换成 be名词;join the Party-be a Party member,join the army-be a soldier,go to school-be a student.、转换成be+介词短语:go to school-be in school,join the army-be in the army.、转换成be+adj./adv.:die-be dead,finish-be over,begin/start-be on,leave()-be away(from),close-be closed,ope
4、n-be open,fall asleep-be asleep.巩固练习：（同义转换，每空一词）.Li Lei joined the Party three years ago.Li Lei the Party three years ago.Li Lei the Party three years.three years Li Lei joined the Party.Three years Li Lei joined the Party.has been insincehas been inforItssincehas passed since2.My father left Guchen
5、g last week.My father Gucheng last week.My father Gucheng a week.3.The factory opened in 1996.The factory ten years.The factory since 1996.has been away fromsincehas been away fromforhas been open forhas been open4.His grandfather died five years ago.His grandfather since .His grandfather five years
6、.five years his grandfather died.Five years his grandfather died.has been dead five years agohas been dead forItssincehas passed since5.Mr.Wang reached Beijing five days ago.Mr.Wang Beijing five days ago.Mr.Wang Beijing five days.6.The film began ten minutes ago.The film for .The film since .has bee
7、n insincehas been inforhas been onten minuteshas been onten minutes ago7.My father bought a new car two years ago.My father _ _ a new car _ two years.My father _ _ a new car _ two years ago.8.Tom borrowed this book four days ago.Tom _ _ this book _ four days.Tom _ _ this book _ four days ago.has had
8、forhas hadsincehas keptforhas keptsince9.Jim joined the League last yeas.Jim _ _ a League member _ a year.Jim _ _ _ the League _ last year.10.They came to China ten years ago.They _ _ _ China _ ten years.They _ _ _ China _ ten years ago.has beenforhas been insincehave been inforhave been insince11.My son fell asleep half an hour ago.My son _ _ _ for _ _ _.My son _ _ _ since _ _ _ _.has been asleephalf an hour agohas been asleephalf an hour
