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Ourslogan:HewhohasneverbeentotheGreatWallisn’tatrueman.现在完成时RevisionThePresentPerfectTenseFanhuaMiddleSchoolFanZHihong现在完成时谓语动词的构成：1.I_____________(finish)homeworkalready.2.He___________(learn)Englishforthreeyears.I/We/You/Theyhave…He/She/Ithas…havefinishedhaslearned助动词have/has+pp（过去分词）句式变换：1.Hehasfinishedhishomework.(变为否定句）2.TheyhavevisitedChinabefore.(变为一般疑问句，并做肯定回答）Hehasn’tfinishedhishomework.HavetheyvisitedChinabefore?Yes,theyhave.1.现在完成时的第一种用法是什么？2.常用的时间状语有哪些？3.你能说出already和yet有哪些不同吗？想一想现在完成时(一)1.表示过去发生的动作对现在造成的影响和结果.2.时间状语:already,yet,ever,never,just,before等3.already和yet的区别already多用于肯定句；yet多用于否定句和疑问句末。注意：如果肯定句中含有already或just，在变成否定句或疑问句时，要把句中的already或just转换成yet.Ihaven’tseenthefilmyet.2.Ihavealreadyfinishedmyhomework.Haveyoufinishedyourhomeworkyet?3.Motherhasjustcleanedthehouse.Motherhasn’tcleanedthehouseyet.1.Ihavealreadyseenthefilm.1.I________(do)myhomeworkalready.2.He_____________(notfinish)hishomeworkyet.3.We______never______(see)thisbookbefore.5.Mother_____just_______(clean)thehouse.6.Sally__________(visit)Chinabefore.havedonehasnotfinishedhaveseenhascleanedhasvisited用动词的适当形式填空：现在完成时(二)1.现在完成时的第二种用法是什么？2.常用的时间状语有哪些？3.你能说出for和since有什么不同吗？现在完成时(二)1.表示过去发生的动作,一直延续到现在,并且有可能继续延续下去.2.时间状语:通常和for,since引导的时间状语连用.1.for+一段时间foraweek,for3years,foralongtime,2.since+时间起点since+一段时间+agosince+从句(一般过去时)since2o’clock,sinceyesterday,since3yearsago,sinceIcamehere等.注意:对for或since引导的时间状语提问必须用___________1.Ihavelivedherefor10years.Howlonghaveyoulivedhere?2.Shehasstoodheresince2hoursago.Howlonghasshestoodhere?howlong选用for和since填空:1.Wehaven’tseeneachother______alongtime.2.HisfatherhasbeenintheParty______10yearsago.3.Thefilmhasbeenon______20minutes.4.MrGreenhasworkedhere______hecametoChina.5.Hisgrandpahasbeendead______severalyears.forsinceforsinceforhavebeento曾经去过某地（已返回）havegoneto去了某地（还没有回来）ABAB巧记：beento，goneto意不同，两者用法要记清；havebeento+地名，曾经到过某地行；havegoneto+地点，到某地去了已走远。1.IhavegonetoJapanbefore.()2.Guilinisverybeautiful,Ihavebeentotheretwice.()3.HisfatherhasgonetoBeijing.Hewillbebacknextweek()4.Wherehaveyougone?()Trueorfalse?FFFTbeenbeen你能说出一般过去时和现在完成时的区别吗？一般过去时与现在完成时有一些明显的时间状语。1.yesterday,lastyear,in+过去某一年，twodaysago,justnow等常用于一般过去时2.already,yet,ever,never,just,before,sofar,inthepast/lastfewyears(在过去/最近的几年里)，for+一段时间，since+时间起点等常用现在完成时注意：在现在完成时的肯定句中，动词不能和for,since引导的时间状语连用。要连用必须改成延续性动词最常见的有：•buy-----have,•borrow-----keep,•leave------beaway(from)•die------bedead,•come-----behere/bein•join-----bein/amemberof•begin/start-----beon非延续性举例：1.我买了这本书五年了。2.这位老人已经死了十年了。Ihaveboughtthisbookforfiveyears.Ihavehadthisbookforfiveyears.Theoldmanhasdiedfortenyears.Theoldmanhasbeendeadfortenyears.(F)(F)(T)(T)当堂检测一、句式变换：（5分,每空1分）1.JackhasvisitedChinabefore.(改为否定句）JackvisitedChinabefore.2.Theyhavecomeintotheclassroom.(改为一般疑问句）comeintotheclassroom?3.Hehasbeenherefor12years.(划线提问）hashebeenhere?hasn’tHavetheyHowlong二、用所给词的正确形式填空:（3分，每空1分）1.I（live）herefortenyears.2.I（live）herein1998.3.He(notreturn)thebookyet.三、判断正误：(2分，每题1分)1.他爷爷已经去世三年了。Hisgrandpahasdiedfor3years.()2.他去过北京。HehasgonetoBeijing.(F)haslivedlivedhasn’treturnedFHomework写一段短文，用现在完成时描述自己的一次经历。（不少于60字）Bye-bye!Thankyou