Unit2TravellingRevision现在完成时是由助动词have（has）+过去分词构成。现在完成时表过去发生的某一动作对现在造成的影响或结果,或表示过去已经开始，持续到现在的动作或状态，也可以表示实质可能继续下去的动作或状态。通常和ever,never,already,yet,just,recently以及for,since引导的时间状语连用.还可以和sofar（至今）,bynow（直到现在）,thesedays,inthelasttenyears等连用。时态填空：----Areyousureyou__________(lose)thebook?----Yes,I___________(look)foriteverywhere,butIstillcan’tfindit.4.______youever_______(travel)onatrain?have/hasbeen(to)和have/hasgone(to)Have/hasgone(to)表示“已经去某地了”，说明主语现在不在说话者所在地。(3)MissWanghasgonetoJapanwithherfriend.Theywillcomebacknextweek.王小姐已经和朋友去日本了。她们下周将回来。(4)Myparentshavegonetothesupermarkettobuysomethingtoeat.Theywillbebackinhalfanhour.我的父母到超市买食品去了。他们将在半小时后回来。Practise:Millie:We______also_______(be)tothePattayaBeach.Lookatthisone.Isn’titbeautiful?Daniel:Yes,thebeachisverybeautiful.IseeAndywastheretoo.Millie:Yes.We________(go)therewithhisfamily.Daniel:Really?I______________(notsee)himforsometime.Itseemshe_____________(notcome)backyet.Millie:Heandhisfamily______________(go)toShanghaitovisithisgrandparents.Theywillcomebacktomorrowmorning.Workouttherulehave/hasbeen(to)和have/hasgone(to)用have/hasbeen(to)和have/hasgoneto填空。(1)Myfather___________toBeijing．Hewillbebackintwodays．(2)TheGreens____________totheUSAtwice。(3)A:Whereisyourauntnow?B:She____________toXiamen．(4)TheClassl，Grade8students____________tomanyplacesofinterestinourcitymanytimes.(5)A:______Tommy______toNanjing?B:Yes．Hewenttherelastmonthandhasn‘tcomebackyet．(6)_____youever_____toFrance?(7)Youcan’tfindthetwins,they__________toJilin.(8)A:I__________toHongkong,whataboutyou?B:I_____never_____toHongkong,butmybrother__________there,andhewillcomebacktomorrow.Homework:Thanks!