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GrammarandusageM2U1Presentperfecttense&PresentperfectcontinuoustenseRevision:translatethefollowingsentences•1.美国警方现已加紧对一名15岁男孩的搜索。•2.自从上周五晚我就没有看到贾斯丁。•3.该事件引起了公众的极大兴趣，原因是….•Thisincidenthasreceivedgreatinterestduetoreportsofalienvisits…PeopleinAmericahavesteppeduptheirsearchforafifteen-year-oldboy.IhavenotseenJustinsincelastFridaynight.Presentperfecttense一、现在完成时•现在完成时表示动作发生在过去，对现在产生一定影响、造成一定结果。（主要为短暂性动词）*可以从以下三个方面来理解。1.过去发生的动作，对现在有影响现在完成时现在time过去•常同already,just,yet等词连用•Shehaslostherbike.她把自行车丢了。（影响是她现在没有自行车骑了）•Shehashadagoodeducation.她受到过良好的教育。（影响是她文化水平高，有修养）2.从过去持续到现在的动作（延续性动词或表状态的形容词）时间段：since/sofar:从过去到现在inthepast/fewyears:从过去到现在的几年注意:inthepast过去(一般过去时)现在time现在完成时常同包括现在在内的时间状语连用，如：today,now,thisweek,thismorning,thesedays,thisafternoon,recently,等；•IhavemadelotsoffriendssinceIcametoChina.•Hehasn’tboughtsnacksinSizhongSupermarketforalongtime.注意：可持续的动作+时间段（短暂性动词与一段时间连用多用于否定句）--__DavidandVicky__married?--Foraboutthreeyears.A.Howlongwere…beingB.Howlonghave…gotC.Howlonghave…beenD.Howlongdid…get现在完成时3.从过去某一时间到说话时这段时间中反复发生的动作或多次动作的总和，常同频度副词always,often,seldom,never等连用•IhavebeentotheGreatWalltwice.•Ithasrainedeverydaythisweek.•Shehasalwayswalkedtoschool.•Ihaveneverseensuchabeautifulbird.对现在完成时的考查1.现在完成时表示过去的动作对现在的影响或表示经验。（过去发生的动作与现在没有联系仍用过去时）2.现在完成时表示过去的动作一直延续至今，常与for或since等短语连用。1993now19989years5yearsI_________(graduate)in1993andinthatyearI_______(begin)toteachEnglishinamiddleschool.I______(teach)thereforfiveyears.Fiveyearslater,I_______(move)toNanjing.I______________(teach)seniorEnglishinSunshineHighSchoolfornearly9yearseversincethen.graduatedbegantaughtmovedhavetaught/havebeenteaching现在完成时•Excuseme.I_______Iwasblockingyourway.•A.didn’trealizeB.don’trealize•C.haven’trealizeD.wasn’trealizing•1.Excuseme.I_______Iwasblockingyourway.•A.didn’trealize•B.don’trealize•C.haven’trealized•D.wasn’trealizing•2.I________inLondonformanyyears,butI’veneverregrettedmyfinaldecisiontomovebacktoChina.•A.lived•B.havelived•C.hadlived•D.wasliving现在完成时•have\hasgonetosp.•(区别是什么？)•have\hasbeentosp.•M:--Whereisyourfather,Jack?•S:--He__________tothefarm.•M:--Wherehaveyoubeen?•F:--I__________tothefarm.hasgonehavebeen用现在完成时的典型场合:It/This/Thatisthefirst（second/third…）time＋that从句It/This/Thatistheonly…＋that从句It/This/Thatisthe＋最高级…＋that从句用现在完成时的典型场合:①It/This/ThatisthefirsttimethatIhavecometoZhejiang.②It/This/ThatistheonlypartythatIhaveeverreallyenjoyedinmylife.③It/This/ThatisthemostinterestingbookthatIhaveeverread.（注:以上句型把is改为was,则从句时态相应改为过去完成时态）Thisisthefirsttimewe______afilminthecinematogetherasafamily.A.seeB.hadseenC.sawD.haveseen1.汤姆已经结婚10年了.Tomhasbeenmarriedfortenyears.2.她肯定累了，因为她一天一直在跳舞。Shemustbetired,forshehasbeendancingallday.这是什么时态？TheCCTVhasbeenbroadcastingEnglishprogramseversince1977.1977now构成:have/hasbeen+doing概念:表示从过去某一时刻发生的动作，可能刚刚结束，也可以一直延续到现在，并且还可能继续下去。对现在完成进行时的考查用现在完成进行时的典型场合:常和allthemorning,allnight,allday,allthistime,thisweek,thismonth等连用。•Theboystartedhavingdinnerfiveminutesago.Heisstillhavingdinnernow.•Theboy________________(have)dinnersincefiveminutesago.hasbeenhaving1.现在完成进行时•Themanstartedworkinginthefieldhalfanhourago.Heisstillworkingnow.•Theman_________________(work)inthefieldforhalfanhour.hasbeenworkingAdventures1.----We’vespenttoomuchmoneyrecently.----well,itisn’tsurprising.Ourfriendandrelatives_______aroundallthetime.A.arecomingB.hadcomeC.werecomingD.havebeencomingAdventures2.—Ihavegotaheadache.—Nowonder.You________infrontofthatcomputertoolong.A.workB.areworkingC.havebeenworkingD.worked3.CathyistakingnotesofthegrammaticalrulesinclassatSunshineSchool,whereshe________Englishforayear.A.studiesB.studiedC.isstudyingD.hasbeenstudying4.Nowthatsheisoutofajob,Lucy________goingbacktoschool,butshehasn’tdecidedyet.A.hadconsideredB.hasbeenconsideringC.consideredD.isgoingtoconsider5.Weonthisprojectforfourhours.Let’shavearest.A.areworkingB.havebeenworkingC.workedD.hadworked现在完成进行时（Ihavebeendoing）VS.现在完成时（Ihavedone）Hehasbeenpaintingtheceiling.Shehaspaintedtheceiling.现在完成进行时与现在完成时的区别如下：1.现在完成时与现在完成进行时Ihavewrittenanarticle.Ihavebeenwritinganarticle.2.有些延续性动词，如live,teach,work,study,learn,stay等因现在完成时与现在完成进行时差别不大。Ihavelivedherefortenyears.=Ihavebeenlivingherefortenyears.Notes：表短暂动作的动词（finish,marry,getup,come,go等）一般不能用现在完成进行时。强调：已完成性强调：持续性，尚未完成1.Uptonow,theprogram________thousandsofchildrenwhowouldotherwisehavedied.A.wouldsaveB.savesC.hadsavedD.hassaved2.Igotcaughtintherainandmysuit____.A.hasruinedB.hadruinedC.hasbeenruinedD.hadbeenruined3.---“Hi,Tracy,youlooktired.”--“Iamtired.I___thelivingroomallday.”•A.painted•B.hadpainted•C.havebeenpainting•D.havepainted4.Whenyouarehome,giveacalltoletmeknowyou______safely.•A.arearriving•B.havearrived•C.hadarrived•D.willarrive5.Mary______toeveningclassessincelastmonth,buthestillcan’tsay“What’syourname?”inRussian.A．hasbeengoingB．wentC．goesD．hasgoneThankyou!