初中二年级英语下册第一课时课件.pptVIP

Present Perfect Tense Present perfect tense 现在完成时 构成: 用法一： 1.都表示过去发生的事 2.现在完成时强调过去和现在的联系，不能和具体的时间状语连用； 3.一般过去时强调过去发生的事或状态与表示过去的具体时间连用（last, ago, yesterday, etc. ） eg.1. He had his breakfast at 6:00 He has had his breakfast. 2. When did you come here? I watched the football match on TV at 9:00. Adverbs of time before, by now (so far), once, twice…, just, recently yet(否/疑), already(肯), ever, never, all one’s life , in /during the past /last 5 years, Exercises 1. I ________(have) lunch already. 2. Has the train_______ (arrive), yet? 3.Tome ____ never_______ (be to ) China. 4. The twin ______just _____(see) my father. 5. The twins ____(see) my father just now. 6. Many tall buildings ____________(build) in the past 5 years. 用法二： for+段时间 since+点时间 since+句子（过去时） E.g. Kate has lived here for 3 years. Kate has lived here since 3 years ago. Kate has lived here since she came to China. 常见非延续性动词和延续性动词的转变 arrive/come/go to die become a borrow Leave/ move buy open join start/begin finish/ end catch a cold get up get to know get out close wake up go to sleep become interested in 重点句型:It is/ has been+段时间+since从句 段时间+has passed+ since从句 eg. 他死了两年了： He died two years ago. He has been dead for two years /since two years ago It is/ has been two years since he died. Two years has passed since he died. 1. 这本书我借了一个月了。 Have/has gone tohave/has been to have/has been in have/has gone to:已经去了或在途中，还没有返回； have/has been to:曾今去过某地，现在已经回来了,后面可接表示“次数”的状语; have/has been in:表示某人“已在某地停留一段时间，现仍在那里”，其后常带表示一段时间的状语。 Exercises Tom 在哪儿？ 他去书店买书了。 我在北京待了5年了。