原九年級(jí)英語(yǔ)全冊(cè) Unit 8 It must belong to Carla（第3課時(shí)）（Grammar Focus4c）同步語(yǔ)法精講精練課件 （新版）人教新目標(biāo)版

Unit 8It must belong to Carla.第三課時(shí)(Grammar Focus4c)單元同步語(yǔ)法精講精練情態(tài)動(dòng)詞must，can/could，may/might表示推測(cè)時(shí)，要根據(jù)肯定、否定或疑問(wèn)的不同形式選用不同的情態(tài)動(dòng)詞?！扒閼B(tài)動(dòng)詞do sth.”表示對(duì)現(xiàn)在事情的推測(cè)；“情態(tài)動(dòng)詞be doing sth.”表示對(duì)正在發(fā)生的事情的推測(cè)；“情態(tài)動(dòng)詞have done sth.”表示對(duì)過(guò)去或已完成事情的推測(cè)。eg：They must be in the classroom now.他們現(xiàn)在一定在教室里。Peter may/might have been hurt in the car accident.彼得可能在車(chē)禍中受了傷。肯定推測(cè)must用于肯定句，意為“準(zhǔn)是，一定”，后面接動(dòng)詞原形，表示對(duì)現(xiàn)在較有把握的推測(cè)。eg：Ive had no sleep for 48 hours.我已經(jīng)48小時(shí)沒(méi)睡覺(jué)了。You must be exhausted.你一定筋疲力盡了。【注意】mustnt表示“禁止，絕不允許”。may，could，might意為“可能，也許”，表示可能性較小的肯定推測(cè)。eg：You may be right.你可能是對(duì)的。He could/might be running for exercise.他可能正在跑步鍛煉。can用在肯定句中，表示理論上的可能性。eg：Smoking can cause cancer.吸煙有可能引發(fā)癌癥。否定推測(cè)表否定推測(cè)時(shí)，cant/couldnt語(yǔ)氣最強(qiáng)，指“不可能”，帶有驚異、懷疑的感情色彩。eg：The story sounds reasonable，but it cant be true.這個(gè)故事聽(tīng)起來(lái)合情合理，但不可能是真的。may not/might not/could not表示不太有把握的否定推測(cè)，意為“可能不(會(huì))是”。eg：He could not/might not be at home.Im not sure.他可能不在家，我不確定。疑問(wèn)句中的推測(cè)疑問(wèn)句中的推測(cè)，常用can或could，意為“可能”。eg：There is someone outside.Who can it be？外面有人，會(huì)是誰(shuí)呢？句型：“Whose一般疑問(wèn)句？”“Whose名詞一般疑問(wèn)句？”答語(yǔ)：使用名詞所有格或物主代詞來(lái)回答。使用belong to sb.結(jié)構(gòu)來(lái)回答。eg：Whose is this umbrella？/Whose umbrella is this？這把雨傘是誰(shuí)的？Its Marys./It belongs to Mary.是瑪麗的。 一、根據(jù)句意，從方框中選擇合適的情態(tài)動(dòng)詞填空。1Tom has gone to Beijing.He _ be at home now.2There _ be a girl singing next door.Cant you hear her?3The girl in the classroom _ be Maria.She called me from the library just now.4We _ go to the Great Wall this winter，but Im not sure.cantmustcantmay/might/could二、單項(xiàng)選擇。5I wonder if this smart phone is Marys.(2015，蘭州)It _ belong to her._ is totally different from this one.Amustnt；Her Bcant；HerCcant；Hers Dmay；Hers6Harrys been driving all day.He _ be tired.(2015，杭州)AneedBcanCshallDmustCD7Is that man Mr. Smith?It _ be him.He has gone to New York on business.(2015，天津)Amay not Bneednt Ccant Dmustnt8Whats the matter with Tom？He has been absent for two days.(2015，河南)Oh！He _ be ill.Lets go and ask Ms. Brown.Acan Bneed Cmay DwouldCC三、按要求完成句子，每空一詞。9The beautiful coat is Mikes_sisters(對(duì)畫(huà)線(xiàn)部分提問(wèn))_ _ the beautiful coat?10The English book must be Sallys.(改為同義句)The English book must _ _ Sally.11她不可能正在實(shí)驗(yàn)室等著你。(翻譯句子)She _ _ _ for you in the _12你昨晚熬夜了，現(xiàn)在一定困倦了吧。(翻譯句子)You _ _ _ now after your staying up late yesterday.Whose isbelong tocant be waitinglaboratorymust be sleepy