Unit8 知识点梳理及练习- 人教版九年级英语全册

Unit8itmustbelongtoCarla.Unit8词汇拓展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.历史学家)Lead(v.)_________(n.)Medicine(n.)____________(adj.)Prevention(n.)____________(v.)Bury(v.)_____________(n.)重点短语可能是真的我剩下的朋友把某物捡起来做某事有太多乐趣追赶它最大的神秘事物之一指出穿如此亮丽的衣服情态动词must用于肯定句，意为＂一定，肯定＂，表示有把握的肯定推测。AlanhasbeeninChinaforseveralyears.Hemustbeabigboynow.艾伦在中国好几年了，现在他一定是个大男孩了。can多用于否定句或疑问句中，意为＂可能；会＂，表示可能性较大的推测。can’t可用于对must表示的肯定推测进行否定。Thatcan’tbeMary—she’sinNewYork.那不可能是玛丽——她在纽约呢。might/could用于肯定句，意为＂有可能，也许＂，表示把握不大的推测。Thisvolleyballmight/couldbeTom’s.Heislookingforhisvolleyball.这个排球可能是汤姆的，他正在找他的排球。情态动词可以表示说话的语气，本单元我们主要学了must，might，could，can等情态动词表示推测的用法。表示推测时，要根据肯定句、疑问句或否定句的不同句式选用不同的情态动词。【拓展】表示对现在情况的推测用＂情态动词＋do＂；表示对正在发生的事情的推测用＂情态动词＋bedoing＂；表示对过去或已完成事件的推测用＂情态动词＋havedone＂。►Shemightbeintheclassroomnow.她现在可能在教室里。►It’steno’clock.Hemustbehavingclass.十点钟了，他一定在上课。►Sheiscrying.Shemusthaveknownthebadnews.她在哭，她一定已经知道了这个坏消息。【典例】—Look!It________beDavidintheclassroom.—It________behim.BecauseIsawhiminthelibraryamomentago.A.may;mustn’t B.must;can’tC.can;can’t D.mustn’t;can一、情态动词表推测时，不同的形式表示不同的时态。结构形式用法例句情态动词+动词原形表示对＂现在的事情＂的推测Somethingmustbewrongwithmybike.我的自行车一定是出了毛病。情态动词+be+动词的-ing形式表示对＂正在发生的事情＂的推测Hemightbehavingbreakfastathome.他可能正在家里吃早饭。情态动词+have+动词的过去分词表示对＂过去或已经完成的事情＂的推测Imusthaveputmykeyssomewhereinthebedroom.我一定是把钥匙放在卧室的某个地方了。二、情态动词表推测的意义和用法句式情态动词用法意义例句肯定句must表示有把握的肯定推测一定；肯定Hemustbeverytiredafteralongjourney.长途旅行后，他一定很累。could/may/might其肯定程度逐渐减弱，表示把握性不大的推测可能Itmightrainthisafternoon.今天下午可能会下雨。否定句can’t表示有把握的否定推测不可能Shecan’tbeatschool.It’sSundaytoday.她不可能在学校里。今天是星期天。疑问句can/could表示推测可能CouldMikebeanIndianboy?迈克可能是一个印度男孩吗？【警示】1.could用于否定句时，语气较can’t缓和，意为＂不可能＂。►Hesaidthenewscouldn’tbetrue.他说那个消息不可能是真的。2.may/might用于否定句时，表示不太有把握的否定推测，意为＂可能不＂。【典例】—Excuseme.IsthistherightwaytotheSummerPalace?—Sorry,Iamnotsure.It________be.A.might B.will C.must D.can一、选用方框中的情态动词填空。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、根据汉语意思完成句子，每空一词。1.她不可能正在等你。She________________________foryou.2.她的表准是停了。我去叫她。Herwatch________________________.Iwillgoandcallher.3.他喜欢读书。现在他一定是正在图书馆读书呢。Helikesreading.Nowhe________________________inthelibrary.4.你走了那么长的路，一定饿了吧。You________________________afteryourlongwalk.5.你最好去问那位警察，他一定知道去邮局的路。You’dbetteraskthepoliceman.He________________thewaytothepostoffice.三、单项选择。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用所给词的适当形式填空。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).用括号内所给单词的适当形式填空。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.