Unit6SunshineforallGrammarrightItis…1seatstheelderlytotogivegoodItis2tohelpblindpeoplecrosstheroad.Itis3todonatehelpfulmoneytocharities.Itis4totakecareofproperalostpet.Itis5toplantimportantmoretrees.Itis6necessaryparksclean.tokeepIt’s_________to________________________________.impolitespeakloudlyinthecinemaIt’s_________to________________________________.wrongdroplittereverywheredroplittereverywherepeakloudlyinthecinemaWeuseItis+adjective+to-infinitivetoexpresswhatwethinkaboutsomething.It为形式主语,真正的主语为todosth.1.Itis+adj.+todosth.task1Youcanchooseoneortwoadjectivestomakesentences.easy,possible,important,wonderful,necessary,fantasticgreat,happy,interesting,difficult,cheap,exciting,comfortablesad,dangerousWecanaddforsomeonetospecifywhowearetalkingabout.(指定)2.Itis+adj.+forsb.+todosth.Task2Combine(合并)twosentencesintoonesentence1.HelearnsEnglishwell.Itisveryimportant.2.Wehelppeopleinneed.Itisnecessary.3.Theywritetothegovernment.Itisuseful.4.MilliejoinstheTreePlantingClub.Itismeaningful.Task3translatesomesentences1.对我们而言,学会一门外语是有用的。Itisusefulforustolearnaforeignlanguage.2.你在河里游泳是危险的。Itisdangerousforyoutoswimintheriver.3.对他而言,回答这样一个问题是很容易的。Itiseasyforhimtoanswerthisquestion.4.对Millie来说,成为志愿者是有意义的。ItismeaningfulforMillietobeavolunteer.Amywantstobeavolunteer.NowsheisaskingSimonaboutthevoluntarywork.Completetheirconversation.easyforpeoplefantasticformeimportantforusimpossiblefororganizationsnecessaryforvolunteerswonderfulforyouAmy:Whydoyouwanttobeavolunteer?Simon:Becauseanyhelpwouldmeanalot.Manyorganizationsprovidehelpforpeoplewithintellectualdisabilities,butit's(1)___________________todotheirworkone-to-onewithoutthehelpofvolunteers.Amy:It’s(2)__________________tobeavolunteer.Doyouneedexperience?impossibleforthemwonderfulforyouSimon:No.It’snot(3)____________________tohaveanyexperience,butit’svery(4)______________tobekindandfriendly.Amy:Whatareyourtasks?Simon:I’minthesportsgroup.Ichatwiththem,h...