现在完成时中短暂性动词与延续性动词的转换Helen.pptxVIP

现在完成时中(点动词)短暂性动词与延续性动词的转化第1页，共18页。 短暂性动词也称做点动词、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。第2页，共18页。 常见的短暂性动词come, go, arrive, reach, see, hear, close, open, leave, begin, start, lose, buy, fall, join, die, become, borrow, get up 等．第3页，共18页。 １.它们可以用于完成时态，说明某个动作的结 果还存在e.g. He has come back. The film has begun.第4页，共18页。 2.在否定句中，非延续性动词也可以用表示一段时间的状语来修饰e.g. I haven’t heard from Uncle Wang for a long time. We haven’t seen him since 1992. She hasn’t left home all her life.第5页，共18页。 在以下句型中，短暂性动词要转换成延续性动词：现在完成时态的肯定句中，有for或since引导的，或其他种类的表示一段时间的时间状语例如：He has died for 20 years. 这句话就是错误的。die是一个瞬间动词，需要转化为延续性动词。句子改为 He has been dead for 20 years.非延续性动词要转换成延续性动词，方法主要有以下三种：第6页，共18页。 1. 实义动词转化成实义动词1. borrow keep 2. buy have 3. put on wear 第7页，共18页。 2. 转化成be+形容词或介词1. go there be there 2. come here be here 3. come back be back 4. die be dead 5. leave be away (from) 6. open be open 7. close be closed 8. go/get out be out 第8页，共18页。 9. finish/end be over 10. become be 11. get up be up 12. begin/start(上演) be on 第9页，共18页。 3. 转化成be+名词（词组）20. join the Party be in the Party be a Party member be a member of the Party 第10页，共18页。 21. join the army be in the army be a soldier 第11页，共18页。 句型转换: His grandfather died five years ago.第12页，共18页。 句型转换: His grandfather died five years ago.His grandfather has been dead for five years .His grandfather has been dead since five years ago.It’s five years since his grandfather died. Five years has passed since his grandfather died. 第13页，共18页。 His brother borrowed the book two weeks ago.第14页，共18页。 His brother borrowed the book two weeks ago.His brother has kept the book for two weeks .His brother has kept the book since two weeks ago.It’s two weeks since his brother borrowed the book . Two weeks has passed since his brother borrowed the book . 第15页，共18页。 His brother joined the army two years ago.第16页，共18页。 His brother joined the army two years ago.His brother has been in the army for two years .His brother has been in the arm