1、现在完成时概念现在完成时概念现在完成时I have had lunch already.I had lunch before.I am not hungry now.一般过去时一般过去时一般现在时一般现在时一般将来时一般将来时现在完成时现在完成时1.表示过去已完成的动作，对现在产生影响。概念现在完成时He has worked in BJ for a year/since last year.He went to BJ last year.He still works in BJ now.一般过去时一般过去时一般现在时一般现在时一般将来时一般将来时现在完成时现在完成时2.表示过去发生的动作持续
2、到现在，甚至将来。He will work in Neworiental in the future.概念现在完成时1.表示过去已完成的动作，对现在产生影响。2.表示过去发生的动作持续到现在，甚至将来。I have had lunch already.He has worked in Neworiental for a year/since last year.already时间标志词现在完成时yetnevereverjustI have already read the book.Have you finished yet?She has never danced.I have ever w
3、atched the film.We have just had a break.“已经已经”，用于肯定句，放句中，用于肯定句，放句中/句末句末“已经已经”，用于否定，用于否定/疑问句，放句末疑问句，放句末“从不从不”，用于肯定句表否定，用于肯定句表否定，放句中放句中“曾经曾经”，放句中，放句中“刚刚刚刚”，放句中，放句中选词填空alreadynevereverjust他已经看过这个电影了。He has watched this film.他曾经看过这个电影。He has watched this film.他从未看过这个电影。He has watched this film.他刚刚看过这个电
4、影。He has watched this film.since时间标志词现在完成时forHe has worked in Neworiental since last year.He has worked in Neworiental for a year.“自从自从”，接时间，接时间点点“长达长达”，接时间，接时间段段持续since连线since&for区别forMondaythree daysmany years20057 hours句型结构现在完成时I have had lunch already.He has worked in Neworiental for a year/sinc
5、e last year.肯定句：肯定句：have/has+doneI have not had lunch yet.否定句：否定句：have/has+not+doneHave you had lunch yet?疑问句：疑问句：Have/Has+主语主语+done改错句型结构练习He have already had lunch.We dont have had lunch yet.Does she have done her homework?He has already had lunch.We have not had lunch yet.Has she done her homewor
6、k?过去分词现在完成时常用的过去分词comerunbreakhearreadseemaketeachgobetellknowcamecomeranrunbrokebrokenheard heardreadreadsawseenmademadetaughttaughtwentgonewas/werebeentoldtoldknewknown过去分词练习填空He English for two years.(teach)I already this book.(read)I this news yet.(hear)The naughty boy just the glasses.(break)ha
7、staughthavereadhavenotheardhasbroken现在完成时have been to have gone toThe girl has been to school.The boy has gone to school.现在完成时have been to have gone toDo you find the differences？have been to:have gone to:去过某地，去过某地，已回已回去过某地，去过某地，未回未回have been/gone to 区别练习have been/gone to 填空1.Wheres Jim?He New York.2.She the park,and she will be back in two hours.3.They the forest and returned safely.3.I the Yun Long Lake.Look,I have taken many photos.hasgonetohasgonetohavebeentohavebeentoTHANK YOU
