Unit8itmustbelongtoCarla.Unit8詞匯拓展value(n.)____________(adj.)Happen(v.)____________(n.)Noisy(adj.)___________(n.)Wolf(n.)______________(pl)Sleep(v/n)___________(adj.)Suit(v.)____________(adj.)Mysterious(adj.)___________(n.)History(n.)______________(n.歷史學家)Lead(v.)_________(n.)Medicine(n.)____________(adj.)Prevention(n.)____________(v.)Bury(v.)_____________(n.)重點短語可能是真的我剩下的朋友把某物撿起來做某事有太多樂趣追趕它最大的神秘事物之一指出穿如此亮麗的衣服情態動詞must用于肯定句，意為＂一定，肯定＂，表示有把握的肯定推測。AlanhasbeeninChinaforseveralyears.Hemustbeabigboynow.艾倫在中國好幾年了，現在他一定是個大男孩了。can多用于否定句或疑問句中，意為＂可能；會＂，表示可能性較大的推測。can’t可用于對must表示的肯定推測進行否定。Thatcan’tbeMary—she’sinNewYork.那不可能是瑪麗——她在紐約呢。might/could用于肯定句，意為＂有可能，也許＂，表示把握不大的推測。Thisvolleyballmight/couldbeTom’s.Heislookingforhisvolleyball.這個排球可能是湯姆的，他正在找他的排球。情態動詞可以表示說話的語氣，本單元我們主要學了must，might，could，can等情態動詞表示推測的用法。表示推測時，要根據肯定句、疑問句或否定句的不同句式選用不同的情態動詞。【拓展】表示對現在情況的推測用＂情態動詞＋do＂；表示對正在發生的事情的推測用＂情態動詞＋bedoing＂；表示對過去或已完成事件的推測用＂情態動詞＋havedone＂。?Shemightbeintheclassroomnow.她現在可能在教室里。?It’steno’clock.Hemustbehavingclass.十點鐘了，他一定在上課。?Sheiscrying.Shemusthaveknownthebadnews.她在哭，她一定已經知道了這個壞消息。【典例】—Look!It________beDavidintheclassroom.—It________behim.BecauseIsawhiminthelibraryamomentago.A.may;mustn’t B.must;can’tC.can;can’t D.mustn’t;can一、情態動詞表推測時，不同的形式表示不同的時態。結構形式用法例句情態動詞+動詞原形表示對＂現在的事情＂的推測Somethingmustbewrongwithmybike.我的自行車一定是出了毛病。情態動詞+be+動詞的-ing形式表示對＂正在發生的事情＂的推測Hemightbehavingbreakfastathome.他可能正在家里吃早飯。情態動詞+have+動詞的過去分詞表示對＂過去或已經完成的事情＂的推測Imusthaveputmykeyssomewhereinthebedroom.我一定是把鑰匙放在臥室的某個地方了。二、情態動詞表推測的意義和用法句式情態動詞用法意義例句肯定句must表示有把握的肯定推測一定；肯定Hemustbeverytiredafteralongjourney.長途旅行后，他一定很累。could/may/might其肯定程度逐漸減弱，表示把握性不大的推測可能Itmightrainthisafternoon.今天下午可能會下雨。否定句can’t表示有把握的否定推測不可能Shecan’tbeatschool.It’sSundaytoday.她不可能在學校里。今天是星期天。疑問句can/could表示推測可能CouldMikebeanIndianboy?邁克可能是一個印度男孩嗎？【警示】1.could用于否定句時，語氣較can’t緩和，意為＂不可能＂。?Hesaidthenewscouldn’tbetrue.他說那個消息不可能是真的。2.may/might用于否定句時，表示不太有把握的否定推測，意為＂可能不＂。【典例】—Excuseme.IsthistherightwaytotheSummerPalace?—Sorry,Iamnotsure.It________be.A.might B.will C.must D.can一、選用方框中的情態動詞填空。can,may,must,can’t,maynot,mustn’t,could,might,couldn’t,mightnot1.Thatrednotebook________beWangHong’s.Look!Ithashernameonthefirstpage.2.Thejeans________beMichael’s.Theyaretooshortforhim.3.Thebasketball________beMike’s.HissuperstarisYaoMing.4.Theguitar________belongtoMary.Shelikestoplaytheguitarverymuch.5.Oh,theredbike________behis.Hisisyellow.二、根據漢語意思完成句子，每空一詞。1.她不可能正在等你。She________________________foryou.2.她的表準是停了。我去叫她。Herwatch________________________.Iwillgoandcallher.3.他喜歡讀書。現在他一定是正在圖書館讀書呢。Helikesreading.Nowhe________________________inthelibrary.4.你走了那么長的路，一定餓了吧。You________________________afteryourlongwalk.5.你最好去問那位警察，他一定知道去郵局的路。You’dbetteraskthepoliceman.He________________thewaytothepostoffice.三、單項選擇。1.Thenicehairband________Alice.A.mustbe B.mightbelongto C.maybe D.canbelong2.—Excuseme,isthistherightwaytoNo.1MiddleSchool?—Sorry,I’mnotsure.Butit________be.A.can B.need C.must D.might3.—Willitbesunnythisafternoon?—It________fine.Whoknows?Theweatheralwayschangesquickly.A.mustbe B.willbe C.maybe D.maybe4.—IsJackondutytoday?—Itbehim,andit’shisturntomorrow.A.mustn’t B.can’t C.won’t D.needn’t5.—Look!Peterisplayingbasketballontheplayground.—It________bePeter.HehasgonetoBeijing.A.can’t B.mustn’t C.might D.may6.—Itnearlytookmetwohourstowalkhere.—Haveadrinkthen.You________bethirsty.A.can’t B.must C.mustn’t D.can用所給詞的適當形式填空。1.Thetwooldmenoftenhavefun________(play)chesshere.2.Itmustbelongto________(he).3.Lucymightplaytheguitarverywell.Ithinkit’s________(possible)true.4.Listen!Theremustbesomeone________(knock)atthedoor.5.Therearemanychildren________(play)gameshere.6.Thereusedtobemany________(wolf),butonlyafewofthemremaintoday.7.IstayeduptowatchTVlastnight.NowIfeel________(sleep).用括號內所給單詞的適當形式填空。1.Itakenotesby(draw)mindmaps.2.Theoldmanhasbeen(die)sincethreeyearsago.3.Shecan’tpronouncetheword(correct)4.Hangzhouis(know)fortheWestLake.5.Inspring,wecanseegreen（leaf）andgrasseverywhere.6.He’sin（communicate）withhislawyeraboutthismatter.7.Nothingcanpreventusfrom（realize）our＂ChineseDream＂.8.Heenjoysplayingallkindsofsports.Soyousee,heisan（energy）man.完形填空。Iusedtoliveinmyownroomalone.ButonedayitallchangedwhenmybrotherMikeaskedtosharemy1.Atfirst,myparentssaid＂no＂tohim,butatlastmymotheragreed.Icriedandaskedmyparentsnottodothis,2itdidn’twork.AssoonasMikeenteredmyroom,itbegantobecome3.Tomyanger,heoftenlefthisunwashedclothesandtoyseverywhere!Oneevening,Iwasdoingsome4onmycomputerwhileMikewaslisteningtomusic.5,Ileftmyseattogetsomewater.AbigsurprisewaswaitingformewhenI6.Hewasusingmycomputertoplaygames.Ihadforgottentosavethehomework.Sadly,hehadclosedmyprogram7savingit—allIhaddonehaddisappeared!I8him.Hecriedalotasmymothercameandbeathim.Mymotheralsoaskedhimtoleavemyroomatonce.ThenIdidmyhomework9.At10:00p.m,Ifinishedit.WhenIwasgoingtoturnoffthe10,Isawthephotoofmy11thathehadputonmytable.Ilookedathislovelyfaceandrememberedhow12hewaswhenmymombeathim.Ireallyfelt13.Iwenttoseewhathewasdoing.Ifoundhewas14inmyparents’bed.Ikissedhisface.Hewokeup,gotupandsaid,＂I’msorry.Iwon’tbringyouanymoretrouble.＂Iwassomovedandsaid,＂Fromnowon,myroomisnotonlymine.Itis15!＂Thatverynight,MikeandIsharednotonlytheroom,butthebed.1.A.clothes B.food C.room D.toys2.A.because B.but C.or D.so3.A.dirty B.empty C.quiet D.tidy4.A.business B.homework C.reading D.shopping5.A.Later B.