Itbe__________.Italsobe______________.It_____be___________.LiuxiangIsthisT-shirtJim’s?Fillintheblankswithmust,might,couldorcan’t.情态动词must,might,could,can’t后接动词原形,可以表示对现在的情况的推测.must4aChoosethebestwaytocompleteeachsentenceusingthewordsinbrackets.Thekeys:A:Manypeoplearewearingcoats.B:Theweathermustbe______________________________.2.A:Sallyhasbeencoughingalot.B:Shemightbe_______________________.3.A:Thisrestaurantisalwayscrowded.B:Thefood_______________________.4.A:WheneverItrytoreadthisbook,Ifeelsleepy.B:Itcan’t5A:Lindalooksworried!B:There______besomethinghappenedtoher.2dReadandanswerthequestions.Canyoufindsomeinferentialsentencesinthisconversationandwhy?1Itmightstillbeinthemusichall.1.attend,join,takepartin都有“参加”的意思。区别是：attend主要指“到场”或“出席”会议、宴会、典礼、仪式等。join指参加某团体或组织成为其中一员或参加活动,是非正式用语。takepartin指参加一项工作,在其中分担一部分,也指参加活动并积极工作。Mymotherattendedanimportantmeetingyesterday.2.去年他加入了英语俱乐部HejoinedtheEnglishclublastyear.3.上周五我参加了运动会ItookpartinthesportsmeetinglastFriday.2.Doyouhaveanythingvaluableinyourschoolbag?valuableadj.很有用的；宝贵的Thispaintingisveryvaluable.这幅绘画非常名贵。Hegaveusvaluableadviceontheproblemsofeducation.他在教育问题上给我们提了宝贵的建议。Thisexperienceisvaluabletome.这一经历对我很有用。3.Ithinksomebodymusthavepickeditup.musthavepickeditup是“must+have+过去分词”的结构，表示对过去时间里可能发生的事情的推测，语气较强，具有“肯定”的意思。---Lindahasgonetowork,butherbicycleisstillhere.---Shemusthavegonebybus.He’splayingoutside.Hemusthavefinishedhishomework.【浙江湖州】—Who’ssinginginthenextroom?—It____beher.ShehasgonetoNewYork.A.can’tB.mustC.shouldn’tD.can【解析】考查情态动词表推测。表示否定推测时，用can’t，意为“一定不……”。must表示推测时，意为“一定……”，用于肯定句；根据答语“她已经去了纽约”可知是否定推测，故选A。【2014湖北黄冈】41.—WhoseT-shirtisthis?—It______beJohn's.It’s______smallforhim.A.can't;muchtooB.can't;toomuchC.mustn't;muchtooD.mustn't;toomuch【解析】情态动词的用法。根据句意“它不可能是约翰的，对他来说太小了。”故排除C、D，toomuch为“太多”的意思，muchtoo为“太”。故选A。【2013天津】—Whereareyougoingthismonth?—We______gotoXiamen,butwe'renotsure.A.needn’tB.mustC.mightD.mustn't【解析】needn’t(不必)表建议；must(一定)表猜测的可能性很大；might(可能