初中现在完成时复习.ppt
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1、冬天来了,春天还会远吗?,If winter has already come,can spring be far behind?,现在完成时知识链接:八年级下册Unit9Have you ever been to an amusement park?,复习目录,现在完成时态的概念现在完成时态的结构现在完成时态的句式现在完成时态与一般过去式的比较现在完成时态练习,step1.现在完成时的概念,I have already told them the story.,We have studied NO.10 middle school for more than 2 years.,I have
2、been to water park,1)表示过去发生或已完成的动作对现在造成的影响或结果;,2)表示一次或多次的动作已经成为自己的经历。,3)表示过去已经开始并一直持续到现在的动作或状态。,step 2.现在完成时的结构,现在完成时的构成:have/has+done注:动词的现在分词分为规则变化与不规则变化.规则变化动词的现在分词与过去式是一样的,不规则变化的动词须特殊记忆。,助动词,现在分词,step 3.现在完成时的句式,现在完成时的否定式直接在助动词have或has后面加上not。疑问句是把助动词提到主语之前。,按要求变化句式,1.I have been to Shanghai bef
3、ore.(改为否定句),2.I have got something important to do.(改为一般疑问句),3.Have you ever buy the subway?(做否定回答),I have not been to Shanghai before.,Have you got anything important to do?,No,I haven t,小结,比较have been to和have gone to,1.lucy has _ to Beijing.She will come back tomorrow.A.been B.never been C.went D.
4、gone 2.Hello,this is Mr.Green speaking.Can I speak to Mr.Black?-Sorry.He _ the Park.A.has been to B.has gone to C.went to D.will go to3.-_ you ever _ to the US?-Yes,twice.A.Have,gone B.Have,been C,Do,go D.were,going,B,B,D,have been to/in和have gone to 的对比例题,step 4.现在完成时与一般过去时的比较,1)一般过去时表示过去某时发生的动作或单纯
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