PresentPerfectTense一、.(Idon’thavethebooknow.)现在完成时表示动作发生在过去,但和现在情况有关,既用一个发生在过去的动作来说明现在的情况。.(Hebegantolivetheremanyyearsago,helivestherenowandhewillgoonlivingthere.)二、+过去分词Jackhasn’?Yes,hehas./No,hehasn’?Yes,theyhave./No,theyhaven’’(一)过去的(结束性)动作产生的影响或结果现在还存在。,get,finish,borrow,open,stop,begin,e,die,fall,…时间状语常用already,just,yet,ever,before,once(一次),recently等不具体的过去时间或不带有时间状语三、。-Haveyouhadyourlunchyet?-Yes,.(现在不饿了。)Ihavealreadypostedthephotos.(照片已不再我这里了)MarywithhisfamilyhasneverbeentoChinabefore.-Havetheyeverheardofthestory?-No,,bynow(sofar),到目前为止once,twice…,just,recentlyyet(否/疑),already(肯),ever,never,曾经,从不Exercises:一、按要求变化下列各句。.(否定句).(一般疑问句)?(否定回答)Shehasn’-book.(改成现在完成时).(对划线问)’veworkedoutthemathsproblem.(对划线部分提问)Whohasworkedoutthemathsproblem?WhathasLileieatenforhisbreakfast?No,Ihaven’、用所给动词的适当形式填空。1.--Areyousureyou________(lose)thebook?--(look)(cannot).--_______you_________(take)themedicineyet?--Yes,I_________(take)(never,meet)(just,watch).--Howmanytimes________you________(read)thisbook?--I_________(read)’(buy).--WhereisJoan?--She_________(go)
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