3Unit3Languageinuse.LearningAims:Moduletask:Talkingaboutrecentevents(最近发生的事)Grammartask:PresentPerfectwithalready,justandyet现在完成时现在完成时（二）现在完成时（二）当表示动作已经充成并对现在有一定影响时，我们一般用现在充成时。同时，可分别用just,already或yet加以强调或说明。其结构也是：have/has+动词的过去分词.常用的时间状语有:already,just,一般置于have/has之后，用于肯定句中；在否定句中则要用yet表示“还，未”。Grammar1)Ihavealreadyhadmybreakfast.2)ShehasjustreadabookaboutMars.3)Tom’sparentshaven’tbeentoChinayet.我已经吃过早餐了。她刚刚读完一本有关火星的书。汤姆的父母还没来过中国。与现在完成时连用的几个副词：肯定句:疑问句和否定句:yet常置于句末already,never,ever,just一般置于助动词have/has之后，过去分词之前。already,just,ever,yet,neveralready,justever,yet,neverSpaceshiponMars!Astronautshave(1)________beentothemoonbuttheyhavenotbeentoanyotherplanets.However,aspaceshiphas(2)_____arrivedonMarsandithas(3)_______sentbackphotosoftheredplanet.IstherelifeonMars?Wedonotknow(4)_____.1.Completethenewswithalready,justandyet.alreadyjustalreadyyet•ThespaceshiphasgonetoMars.Ithasgonethere,butithasnotcomebackyet.•Astronautshavebeentothemoon.Theywentthereandthentheycameback.2.Lookatthesesentences.1.Astronautshavebeen/gonetothemoonandreturned.2.Thespaceshiphasbeen/goneintospace.Itwilltravelfortendays.3.Theastronauthasbeen/gonetothespacestation.Hewillcomebacktomorrow.4.Thespaceshiphasbeen/gonetothespacestation.Itbroughtbacktwoastronauts.Nowchoosethecorrectanswer.1.Aspaceship________toMars.Itiscomingbacktotheearthnextyear.2.Lotsofastronaut__________tothespacestation.Theyfounditveryinteresting.3.Completethesentenceswiththeexpressionsinthebox.have/hasbeenhave/hasgonehasgonehavebeen3.Someastronauts___________tothemoontwice.4.TwoBritishastronauts__________tothespacestation.TheywillcomebackinJanuary.havebeenhavegoneNicky:I’vejust(1)_________(watch)agreatTVprogrammeaboutspace.Didyouknowthatscientistshave(2)__________(discover)wateronMars?Bill:Yes,Idid.Andscientists(3)__________(try)tofindlifeonMarsnow.4.Completetheconversationwiththecorrectformoftheverbsinbrackets.watcheddiscoveredaretryingNicky:Yes,they’relookingforlifebutthey(4)_____________(notfind)anythingyet.Bill:ThereweresomenewphotosofMarsinthenewspapertoday.(5)_______you______(see)themyet?Nicky:Yes.They’reamazing!haven’tfoundHaveseenFROM:LiuDanTo:LiFangSUBJECT:I’vefoundagreatbook.DearLiFang,I’ve(1)_______finishedreadingagreatbookatschool.Ihaven’t6.Completetheemailwiththewordsinthebox.beenjustmetneverreadwrittenyetjust(2)________anythingasgoodasthatforalongtime!It’sastoryaboutthesolarsystem.Inthebook,thewriterimaginesthatastronautshave(3)________toMars.I’ve(4)_________thoughtaboutthatbeforeandIthinkit’sveryinteresting.Ihaven’t(5)______anyonefamousinmylifebutIhopeonedayIcanmeetanastronaut.readbeennevermetI’ve(6)________toaChineseastronautformoreinformationaboutspaceandhisexperienceofspacetravel.Ihopehewillwriteback.Hehasn’t(7)_____.Maybeheistoobusy.I’mstillwaiting.Bestwishes,LiuDanwrittenyet1.TheastronautjoinedCNSA_____yearsago.2.Hehasflowninaspaceship_____times.7.Listenandcompletethenotes.sixtwo3.Hefelt______whenhewasinthespaceship.4.Hehasbeentothespacestation______.5.Theearthwasblueandvery__________whenhesawitfromthespacestation.6.Hedecidedtobeanastronautbecausehehasalwaysbeen_________inspace.excitedtwicebeautifulinter...
