现在完成时讲解与练习课件.ppt

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1、Whathaveyoudonethismorning?Ihaveseenalittleaccidentthismorning.Isawalittleaccidentthismorning.Ace.KuThePresentPerfectTense（现在完成时）Fillintheform:1.I___________(know)LiLeiforthreeyears．2.I___________(live)heresince19803.--_______you________(finish)yourworkyet？--Yes，I_______．I_______

2、just_______(finish)it．4..--_______youever_______(be)toachickenfarm？--No，I_______never_______(be)toachickenfarm．5.She__________(be)atthisschoolforoverfourteenyears．haveknownhavelivedHavefinishedhavehavefinishedHavebeenhavebeenhasbeenTheformofthePresentPerfectTense(现在完成时的构成):“have/

3、has+done”(助动词have/has+过去分词)Fillintheform:1.Mary__________(sing)thissongalready.Letherhavearest.2.He_____never________(travel)onatrain.3.MrGreen___________(teach)Englishsince1990.4.Jim_________(be)toWuhantwice.5.WhereisJim?He__________(go)toWuhanforbusiness.6.She___________(work)i

4、nthatfactoryfor20years.7._____you_____(see)thefilmbefore?No,notyet.havesunghastravelledhastaughthasbeenhasgonehasworkedHaveseenDiscussion:1.WhenisthePresentPerfectTenseused?2.What’sthedifferencebetweenhave/hasgonetoandhave/hasbeento?3.WhatkindsofwordsorphrasescanbeusedinthePresen

5、tPerfectTense?WhenisthePresentPerfectTenseused?2.What’sthedifferencebetweenhave/hasgonetoandhave/hasbeento?3.WhatkindsofwordsorphrasescanbeusedinthePresentPerfectTense?现在完成时的用法:（1）表示过去发生或已经完成的某一动作对现在造成的影响或结果;（2）表示过去已经开始，持续到现在的动作或状态.我们可以简记为：过去对现在，过去到现在have/hasbeen和have/hasgone的区别：

6、have/hasbeen表示“曾到过某地”；have/hasgone表示“到某地去了”。现在完成时常与already，just，yet，ever，never,before等连用.也可以和表示从过去某一时刻延续到现在（包括“现在”在内）的一段时间的状语连用，如for，since，sofar,now，today，thismonth，thisyear等.Discussion用所给动词的适当形式填空：1.Thenewspaperishere.It_______(come)amomentago.I(notread)ityet.2.I_______(lend)myC

7、Dplayertoheryesterday,butshe______________(notreturn)ittomeyet.3.Haveyou_________(borrow)thisbookbefore?Yes,I________(borrow)itlastweek.4.______you_______(copy)allthenewwords?Yes,I______(copy)themhalfanhourago.5.WhereisJack?–He________(go)swimmingalready.--He______(go)out20minute

8、sago.6.______you_______(see)thefilmbefor