▲现在完成时态的含义是表示过去发生的或已完成的动作对现在造成的影响或结果。特点是既涉及过去，又联系现在：动作是过去发生的，结果是现在存在的。Shehasgone.(她走了。)从这句话中动词所用的现在完成时态可以看出“走”的动作是过去发生的，而对现在所造成的结果是她不在这里了。一、现在完成时的构成1.现在完成时的肯定句句型：主语+have/has+过去分词。WehavelivedinBeijing.HehaslivedinBeijing.Ihavefinishedmyhomework.movelivelovelike写出下列动词的过去式和过去分词:visitrepairwatchfinishvisitedvisitedrepairedrepairedwatchedwatchedfinishedfinishedmovedmovedlivedlivedlovedlovedlikedlikedverb＋ed以e结尾＋d写出下列动词的过去式和过去分词:stopmoptrapplanstoppedstoppedmoppedmoppedtrappedtrappedplannedplanned注:以一个辅音字母结尾的重读闭音节词,双写最后一个辅音字母＋ed双写＋edstudyhurrystudiedstudiedhurriedhurried去y＋ied注:以辅音字母加y结尾的词,去y＋ied.写出下列动词的过去式和过去分词:begiveseemakeputcomewritewas/werebeengavegivensawseenmademadeputputcamecomewrotewritten注:不规则动词见书上121页不规则动词表.MakingsentencesMr.Wuasksthestudentstocompletethesentencesbelowusingthepresentperfecttense.Helpthemcompletethesentences.1.They___________(finish)theirhomework.2.MrandMrsLi_________________(notcome)backyet.3.John___________(play)thiscomputergamesafewtimes.4.We_______________(notsee)thatfilmyet5.I_______________(repair)overtenbicyclessincelastMonday.6.You_________________(notvisit)meforalongtimehavefinishedhavenotcomehasplayedhavenotseenhaverepairedhavenotvisited改错:1.Thestudentshascleanedtheclassroom.Theclassroomiscleannow.2.Mumhascooksupper.Supperisreadynow.3.Iseethenewfilm.Itisinteresting.4.Hisfamilylivedheresince2000.5.Itryonthehat.Itdoesn’tsuitme.havecookedhaveseenhavelivedhavetried2.现在完成时的否定句句型：主语+have/has+not+过去分词Ihavenotseenthemovieyet.Hehasn’tbeentoBeijingsincethen１)、句中有ever直接将ever变为never２)、若无ever，在助动词have／has之后加notI/They/We/Youhavearrived.He/She/IthasHaveyou….?Hashe….?Yes,IhaveYes,hehas.No,Ihaven’t.No,hehasn’t.hasnot=hasn’thavenot=haven’t...
