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Unit4Amuseumpiece现在完成时区别：havebeento和havegonetohavebeento去了，已经回来havegoneto去了，还没有回来Reviewunit3PatternPracticeHehas__________Hollandandcameback.He_________Holland_________.(time)beentowenttolastweekHehas__________Mexicoandisstillthere.He_________Mexico_________.(time)gonetowenttolastmonthHehas__________Norwayandcameback.He_________Norway_________.(time)beentowenttolastyearHehas__________Brazilandisstillthere.He_________Brazil____________.(time)gonetowenttolastsummerHehas__________Indiaandisstillthere.He_________India______________.(time)gonetowenttoafortnightagoHehas__________Australiaandcameback.He_________Australia______________.(time)beentowenttosixmonthsagoHehas__________Thailandandisstillthere.He_________Thailand_________.(time)gonetowenttoin1999Hehas__________Chinaandcameback.He_________China_________.(time)beentowenttoin2003祖国玩的开心市场农夫水壶准时地担心短信WordreviewhaveagoodtimeontimestillkettleboardhomecountrytextfarmerWordreviewboardontimetextlikecrazyhaveagoodtimemarketstillkettlefarmerLet’sreviewanddothedictationworryexcitinghomecountryPhrases:Howexciting!Whataworryforyou!bewithPaulphoneoffamomentagoputthekettleonhaveanicecupofteaWe’regoingtoputthekettleon.We’renotgoingtoworry,arewe?I’llmissherlikecrazy.We’vealreadyhadalongmorning.HaveyoubeentotheFarmers’Markettoday?PatternPractice现在完成时havebeeninsp.for+一段时间HehasbeeninAmericafortwomonths.since/for的区别since+时间的点，句子for+一段时间Forexample:sincelastsummer,sinceIwasfive,fortwoweeksWhereisJack?____________________Howlonghashebeen____________?Hehasbeen___________for___________.Hehasbeen__________since_____________HehasgonetotheStates.intheStatesintheStateslastMonday.intheStatesaweekWhereisDaisy?____________________Howlonghasshebeen____________?Shehasbeen___________for___________.Shehasbeen__________since_____________ShehasgonetoBangkok.inBangkokinBangkoktheendofMay.inBangkokseveralweeksWhereisPolly?____________________Howlonghasshebeen____________?Shehasbeen___________for___________.Shehasbeen__________since_____________Shehasgonetohospital.inhospitalinhospitallastSunday.inhospitalafewdaysWhereisLucy?____________________Howlonghasshebeen____________?Shehasbeen___________for___________.Shehasbeen__________since_____________Shehasgonetothedentist’s.atthedentist’satthedentist’snineo’clock.atthedentist’sanhourattheairportattheairportthreeo’clock.attheairportseveralhoursTheyhavegonetotheairport.WhereareWilliamandKaren?____________________Howlonghastheybeen____________?Theyhasbeen___________for___________.Theyhasbeen__________since_____________lastweekend.aweekWherearethechildren?____________________Howlonghastheybeen____________?Theyhasbeen___________for___________.Theyhasbeen__________since_____________TheyhavegonetotheSeaside.attheseasideattheseasideattheseasideHowoftenhasJackbeentothecircus?________________________________________________Infact,__________________________________________Hehasn’tbeentothecircusformanyyears.hehasn’tbeentothecircussincehewaslittle.HowoftenhasNinabeentotheseaside?________________________________________________Infact,________________________________________________Shehasn’tbeentotheseasideforalongtime.shehasn’tbeentotheseasidesinceshewastwo.HowoftenhasPaulbeentothezoo?________________________________________________Infact,__________________________________________Hehasn’tbeentothezooforages.hehasn’tbeentothezoosincehewasveryyoung.HowoftenhasAnniebeentothefunfair?________________________________________________Infact,__________________________________________Shehasn’tbeentothefunfairforyears.shehasn’tbeentothefunfairsinceshewasten.Newwordsandexpressions•atticn.阁楼•sincen.自从…以来•harddiskn.硬盘•lawnmowern.割草机•Megabyten.兆字节•nothingn.没有东西，没有事情•jetn.喷气式飞机•circusn.马戏团•several几个•zoon.动物园•foragesadv.长时间•funfairn.露天游乐场1.WhatareRobertandWilliamtalkingabout?2.Whendiditcomeontothemarket?3.WheredidMumfindit?4.Howlonghasitbeenthere?5.Doesitstillwork?6.Whatdoesthenoisesoundlike?7.Whatcantheydowithit?8.Howlonghasn’titbeenoutofitsbox?9.Whoisamuseumpiece,too?QuestionsLet'senjoytheflash!Robert:What’sthis,Dad?William:It’sApple2.It’saveryearlycomputer.Infact(事实上),it’sthefirstPersonalComputer,ever(曾今).Itcameontothemarket（面世）in1977.Wheredidyoufindit?thefirst第一thesecond第二thethird第三Where特殊疑问词，在哪PC:personalcomputer个人电脑Robert:Mumfounditinaboxintheattic(阁楼).William:Oh,thenit’smine!It’sbeenthereforyears.Infact,it’sbeentheresincewemovedintothishouse!find-found发现Mine=mythingIt’sbeen=ithasbeen现在完成时have/has+动词过去分词现在完成时：•Have/has+动词过去分词•表示动词发生在过去，持续到现在或对现在产生影响，后接表示延续性的时间状语。•如：for+时间段•since+时间点•IhavebeentoAmericasinced1998.•Ihavegotthecarfordfiveyears.Sundayteno’clocklastweekend1996JanuaryforforsincesinceRobert:Doesitstill（仍然）work?William:Idon’tknow……Ah,thereyouare!Canyouheartheharddisk（硬盘）?Can是情态动词，表示能够，有能力做某事。Can+动词的原形，变一般疑问句时将Can提前至句首。情态动词+动词原形•can,must,may等都是情态动词，不能独立做谓语，需和实义动词连用。变一般疑问句时将情态动词直接提前至句首。•Icanopenthebox.(变一般疑问句)•Canyouopenthebox?Robert:Isthatnoise（噪音）theharddisk?Itsoundslikealawnmower(割草机)!William:Itisnoisy（吵闹的，嘈杂的）!Ithasn’tbeenoutofitsboxfortwentyyears!soundlike听起来像noise