延续性动词和非延续性动词.ppt

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1、关于延续性动词和非延续性动词现在学习的是第1页，共10页观察并说出这两种动词在用法上面的区别。1.He has lived here for a long time.2.You can keep the book for 5 days.3.I have been a teacher since 2013.4.How long did you stay there last year?延续性动词与表示时间段的时间状语连用。1.He died 5 years ago.2.I joined the Youth League in 2014.3.Her mother bought the scarf

2、for her last year.4.Lucy got up at 5 oclock this morning.非延续性动词与表示时间点的时间状语连用。现在学习的是第2页，共10页1.He hasnt left here since 1987.1987年开始他就没有离开过这里。2.She hasnt heard from her son for 6 weeks.她有六周没有收到她儿子的来信了。非延续性动词的否定形式也可以与表示一段时间的时间状语连用现在学习的是第3页，共10页如果语境中有了表示一段时间的状语，同时又涉及非延续性动词，可以采用以下四种方法进行正确的表达。一、将语境中的非延续性动

3、词转换为相应的延续性动词。如：1.他已经死了五年了。He has died for 5 years.（误）He has been dead for 5 years.（正）2.李晨来这已经四天了。Li Chen has come here for 4 days.（误）Li Chen has been here for 4 days.（正）现在学习的是第4页，共10页非延续性动词与延续性动词的转换非延续性动词与延续性动词的转换1.转换为相应的延续性动词，用于现在完成时。转换为相应的延续性动词，用于现在完成时。borrow keep buy have put on wear catch a cold

4、 have a cold get to know know get to sleep sleep现在学习的是第5页，共10页2.转化为转化为“be+形容词形容词/副词副词/介词介词/名词名词”begin/start be on go out be out close be closed open be open get to/arrive/reach be(in)die be dead现在学习的是第6页，共10页leave be away finish be overfall sleep be asleep join be in/be a member of become be make fr

5、iends be friendscome/go/be+相应的介词短语相应的介词短语现在学习的是第7页，共10页二、将句中表示“一段时间”的状语改为表示过去确定时间的状语1.他已经死了五年了。He has died for 5 years.（误）He died 5 years ago.（正）2.李晨来这已经四天了。Li Chen has come here for 4 days.（误）Li Chen came here 4 days ago.（正）现在学习的是第8页，共10页三、用句型“It is+段时间+since”表达原意，1.他已经死了五年了。He has died for 5 years.（误）It is 5 years since he died.（正）2.李晨来这已经四天了。Li Chen has come here for 4 days.（误）It is 4 days since Li Chen came here.（正）现在学习的是第9页，共10页感感谢谢大大家家观观看看现在学习的是第10页，共10页