新目标英语初中语法：现在完成时态ppt课件

现在完成时态presentperfect,1,时态（tense）,不同时间发生的动作，动词要用不同形式。,已学习过的时态,2,已学习过的时态,1.v.2.v+s/es（三单现）,am/is/are+v-ing,1.will/shall+v.2.am/is/aregoingto+v.,1.v-ed（规则动词）2.不规则动词,was/were+v-ing,have/hasbeenv-ing,3,判断下列句子的时态,1.Sheworksinafactory.2.Iwasdoingmyhomeworkatthistimeyesterday.3.WearegoingtohaveapicnicthisSunday.4.Theyheldasportsmeetinglastweek.5.Areyouhelpingyourmother？6.Ihavebeensittinghereforanhour.,一般现在时,过去进行时,一般将来时,一般过去时,现在进行时,现在完成进行时,4,现在完成时,1.过去发生的动作对现在造成的影响或结果。和already，never,ever,just,before,yet等状语连用。,2.过去已经开始，持续到现在的动作或状态，常与for或since引起的一段时间状语连用。,动词构成：have/has+v过去分词,havebreakfast,Ihavejusthadmybreakfast.,(现在我不饿),Imnothungrynow,movedherein2004,Istilllivehere,Ihavelivedhereforthreeyears.,Ihavelivedheresince2004/threeyearsago.,now,past,5,现在完成时动词构成have/has+v过去分词,助动词,否定,haventhasnt,疑问,Haveyou?Hashe?,6,翻译.(English=Chinese),finish,homework,Ihavefinishedmyhomework.,Hehasfinishedhishomework.,havent,Hashe,Yes,hehas.,No,hehasnt.,1.翻译这两句话；2.第一句变成否定句；3.第二句变成一般疑问句并回答。,？,7,have(has)been和have(has)gone的区别,Wherehashebeen?Wherehashegone?,have(has)been:表示曾经到过某地，人现在不在某地。have(has)gone：表示已经去过某地了，人现在在去某地的路上或已经在某地了。,翻译：,他去哪儿的？（他已经回来了）,他去哪儿了？（他不在这里）,练：,ShehasbeentoShanghai.ShehasgonetoShanghai.,8,她成为一名护士已经三年了。我五年前就认识李雷了。那些相片我已经寄给他了。（post）我来到这个学校后，他就一直教我。我刚丢了我的历史书。,Shehasbeenanurseforthreeyears.,IhaveknownLileisincefiveyearsago.,Ihavealreadypostedthephotostohim.,HehastaughtmesinceIcametotheschool.,Ihavejustlostmyhistorybook.,know,knew,known,teach,taught,taught,lose,lost,lost,Chinese=English,9,Payattention注意,1.现在完成时句中常见的时间状语A.表示从过去一直持续到现在,不能是具体过去时间,(1).for+表示一段时间的短语(2).since+表示过去时间点的词语(3).since+表示过去时间的时间状语从句,eg.Ihavebeenateacher_ayear.Hehasbeenatthisschool_1992.Wehavelearned1,000Englishwords_wecametothisschool.,for,since,since,B.just,already,yet,before/ever,never有此类副词时,常强调动作完成,不强调动作的持续.,eg.Haveyou_beentoJapan?Ihave_finishedmyhomework.Ihavefinishedmyhomework_.Ihaventfinishedmyhomework_.,ever,just,already,yet,10,2.区分短暂性动词与持续性动词.表示短暂性(瞬间性)的动词在现在完成时的句中不能和一段时间连用.短暂性的动词如：come，go，join，leave，buy等，在完成时态中不能与for,since短语或Howlong等引起的时间状语连用。,Ihaveboughtthispenfortwomonths.,Ihavehadthispenfortwomonths.,Howlonghaveyou_thispen.,had,Theteacherhasleft.,Theteacherhasbeenawayforhalfanhour.,(beaway),11,改错,Howlonghaveyoubecomealeaguemember？Formorethanoneyear.Haveyouarrivedheresincelastnight?Yes，youreright.HehasgonetoShanghaitwice.Howlonghavebeenatthisschool?Sincetwoyears.,been,been,been,ago,For,12,改写句子,Homework：,改写句子,1.Myfathercamebackfromthebookshopjustnow.Myfather_just_thebookshop.2.HebegantolearnChinesein2001.He_Chinesesince2001.3.Thefilmbegantwominutesago.Thefilm_sincetwominutesago.4.Hehashadthemotorbikefortwoyears.Itstwoyears_he_themotorbike.He_themotorbiketwoyears_.Twoyears_sincehe_