现在完成时导学案课前延伸回顾现在完成时的构成:have/has+过去分词课内探究：用法一：表示过去发生的某一动作对现在造成的影响或产生的结果.现在完成时这一时态强调是过去动作与现在的联系,也就是强调现在的影响和结果.*与之连用的时间副词：before，bynow(sofar),once,twice,just,recently，yet(/疑),already(肯),ever,never,1.I________(have)lunchalready.2.Hasthetrain_______(arrive),yet?3.Tome____never_______(beto)China.4.Thetwins______just_____(see)myfather.5.Thetwins____(see)myfatherjustnow.6.Manytallbuildings____________(build)inthepast5years用法二：表示从过去某个时间开始的动作或存在的状态，一直持续到现在并可能还将持续下去。动词必须使用延续性动词。常与for或since引导的一段时间状语连用，具体有：for+段时间，since+点时间，since+句子（过去时）E.g.Katehaslivedherefor3years.Katehaslivedheresince3yearsago.KatehaslivedheresinceshecametoChina常见非延续性动词和延续性动词的转变：leave---beaway,borrow---keep,buy---have,begin/start---beon,die---bedead,finish---beover,join---bein+组织机构,beamemberof+组织机构,opensth---keepsthopen等。3）重点句型:Itis/hasbeen+一段时间+since从句一段时间+haspassed+since从句eg.一）他去世两年了：1.Hediedtwoyearsago.2.Hehasbeendeadfortwoyears/sincetwoyearsago3.Itis/hasbeentwoyearssincehedied.4.Twoyearshaspassedsincehedied.。二）这本书我借了一个月了1.Iborrowedthisbookamonthago.2.Ihavekeptthebookforamonth.3Ihavekeptthebooksinceamonthago.*have/hasgoneto，have/hasbeento，have/hasbeeninhave/hasgoneto:已经去了或在途中，还没有返回；have/hasbeento:曾今去过某地，现在已经回来了,后面可接表示“次数”的状语;have/hasbeenin:表示某人“已在某地停留一段时间，现仍在那里”，其后常带表示一段时间的状语。课后提升翻译下列句子：1.我的爷爷去世10年了。2.小明借这本书两周了。3.他的爸爸入党23年了。4.迄今为止汤姆居住在中国六个月。现在完成时堂堂清一．1．I’vejustdonemyhomework.(改为否定句、一般疑问句)2．He’severtakenaplane.(一般疑问句)3．She’salreadyreturnedthebook.（一般疑问句、否定句、划线提问）二．单选()1.Themusicianhasn’tbeenhere_________.A.threeweeksB.sincethreeweeksC.forthreeweeksD.aboutthreeweeks()2.Ihaveknownhim________.A.twoyearsB.forovertwoyearC.sincetwoyearsagoD.lastyear()3.Wehaven’tseenhim________.A.lastweekB.forlastweekC.sincelastweekD.sinceaweek()4.I_____Tomsincehewasalittleboy.A.knewB.knowC.hasknownD.haveknown()5.He’sfinishedhishomework,________?A.isn’theB.hasn’theC.doesn’theD.wasn’the()6.Howlong_____you______apartymember?A.have,becomeB.have,joinedC.have,beenD.have,worked()7.JackhaslivedinBeijing_______hecametoChina.A.whenB.sinceC.beforeD.for()8.I_______heresinceIwasborn.A.havelivedB.haveleftC.havebeentoD.havearrived三．用havebeento,havegoneto或havebeenin填空。1.–IsLiMingin?–No,heisn’t.-Where______he______?-He_______theteacher’soffice.-Whenwillhebeback?-Iamsorry.Idon’tknow.Buthe___theofficeforovertwohours.-Canyoushowmethewaytotheoffice?2.IamafraidIcan’t.I_____never________theoffice.四．用词的适当形式填空：1.–Howlong_____you______(learn)English?I_____(learn)itfortwoyears.2．.I______(justfinish)myhomework.2.Mysister____(go)tostudyintheU.S.Ain1986.She___(study)thereforthreeyears.以下无正文仅供个人用于学习、研究；不得用于商业用途。толькодлялюдей,которыеиспользуютсядляобучения,исследованийинедолжныиспользоватьсявкоммерческихцелях.Forpersonaluseonlyinstudyandresearch;notforcommercialuse.Nurfürdenpers?nlichenfürStudien,Forschung,zukommerziellenZweckenverwendetwerden.Pourl'étudeetlarechercheuniquementàdesfinspersonnelles;pasàdesfinscommerciales.
