8年级英语新目标下现在完成时态课件.pptVIP

The Present Perfect Tense( 现在完成时态 ) .;.现在完成时态的构成:; 现在完成时的基本用法 (一)现在完成时表示过去某时发生的动作到说话时已经完成,对现在产生的影响或结果。 可用一个一般过去时和一个一般现在解释。; e g. You have learnt/ed English for over three years. Mrs luo has taught Chinese for about 30 years. He has done his homework for an hour. (2)since+时间点/具体的过去时间 e g. You have learned English since 2003. ;B:since+S(主）+V-ed+others. You have learnt English since you came to No.1Middle School. 从上面的句子可以得出：现在完成时的第二种用法的两种时间状语可以转换，同时还可与一般现在时和一般过去时进行转换. He has lived here for 29 years.;for 和since的运用对比:;;c. 要表示某人到某地去了。即说话人不在说话的地点。; Examination point: Say “W” or “R” to the following sentences. A.He has bought a book.( ) He hasn’t bought any books for a long time. ( ) He has bought the book for two weeks.( ) He has had the book for two weeks. ( ) B.The old man has died. ( ) The old man has died for two years. ( ) The old man has been dead for two years. ( ) ;结束性动词在陈述句中不能和表示一段时间的时间状语连用,但是可以转换成对应的延续性动词后接段时间.;1.我们买这本书三年了.;3.我借的这本书一周多了.; 1 Can you make sure ___ the gold ring? A.where Alice had put B.where had Alice put C.where Alice has put D.where has Alice put;2 When I was at college I ___ three foreign languages,but I ___ all except a few words of each. A.spoke;had forgotten B.spoke;have forgotten C.had spoken;had forgotten D.had spoken;have forgotten;3 ----I’m sorry to keep you waiting. ----Oh,not at all.I ___ here for only a few minutes. A.have been B.had been C.was D.will be;5 My dictionary ___. I have looked for it everywhere but still ___ it. has lost; don’t find is missing; don’t find has lost; haven’t found is missing; haven’t found;4 ---___ the sports meet might be put