2013高考英语复习精品课件：情态动词3.ppt

1、情 态 动 词1.情态动词的考点1、can;may;must should;need 等表示判断及推测；2、shall;should 的特殊用法；3、情态动词的应答策略；4、对过去的判断或推测；5、dare;need 的用法特点。2.情态动词的用法特点1）情态动词不能表示正在发生或已经发生的事情，只表示期待或估计某事的发生。2）情态动词 除 ought 和 have 外，后面只能接不带to 的不定式。3）情态动词没有人称，数的变化，即情态动词第三人称单数不加-s。4）情态动词没有非谓语形式，即没有不定式，分词，等形式。f.3.情态动词表示推测的用法A.对现在状态和动作的推测高考题点击：1.He

2、len _ go on the trip with us,but she isnt quite sure yet.（05安徽卷）A.shall B.must C.may D.canC说明：must 加动词原形表示“必须做”；may 加动词原形表示“可能会做”；can 加动词原形表示“能够做”；can 表示“可能性”时一般用在问句和否定句中。该句的关键在于“but she isnt quite sure yet”。说明：neednt 表示“不必”；mustnt 表示“不准”；shant 用在二、三人称中表示“坚决不准”，含有强烈的警告和命令的语气。shouldnt 表示“非常不可能”或“应该不会

3、”。2.There _ be any difficulty about passing the road test since you have practiced a lot in the driving school.（05上海卷）A.mustnt B.shant C.shouldntD.needntC3.Its nearly 7:00.Jack _ be here at any moment.(N 1995)A.mustB.needC.shouldD.can4.Johnny,you _ play with the knife,you _ hurt yourself.(N 1996)A.w

4、ont,cantB.mustnt,may C.shouldnt,mustD.cant,shouldCB must+be 表示“肯定会”；need+be 表示“需要在”；should+动词原形表示“非常有可能”；can 表示可能性只用在否定和疑问句中。前句表示“你不能玩刀”，此处的“不能”并非表示“能力”，而是表示“允许”，所以只能用“mustnt”；后句表示“可能会伤着你自己”，故用 may。5.-Are you coming to Jeffs party?-Im not sure.I _ go to the concert instead.(N 2000)A.mustB.wouldC.sho

5、uldD.might6.Mr.Bush is on time for everything.How _ it be that he was late for the opening ceremony?(2001上海春季)A.canB.shouldC.mayD.mustDA此句的关键在于“Im not sure”，既然不能肯定，只能是一种“可能性”。此句的意思为：“Bush 先生总是很守时，他怎么可能在出席开幕仪式时迟到呢？“can 在否定句或疑问句中表示“可能性”。7.-Is John coming by train?-He should,but he _ not.He likes drivi

6、ng his car.(N 2002)A.mustB.canC.needD.may8.-I heard they went skiing in the mountains last winter.-It _ true because there was little snow there.(N 2002北京)A.may not beB.wont be C.couldnt beD.mustnt beDC此句的关键是“He likes driving his car.”can 和 may 都可用于否定句中，cant 表示“根本不可能”，语气很强；may not 表示“也许不可能”，语气较弱。cou

7、ldnt 的语气比 cant 弱。B.对过去动作或状态的推测1.Tom ought not to _ me your secret,but he meant no harm.(N1993)A.have told B.tell C.be tellingD.having told2.I told Sally how to get here,but perhaps I _ for her.(N 1994)A.had to write it out B.must have written it out C.should have written it out D.ought to write it o

8、utAC ought to 相当于 should；此句的关键是“He meant no harm”，显然指的是过去的事。should have written 意指“本该写但实际上并没有写”。3.-There were already 5 people in the car but they managed to take me as well.-It _ a comfortable journey.(N 1995)A.cant beB.shouldnt be C.mustnt have beenD.couldnt have been4.Susan_ written a report like

9、 this.(1995上海)A.can haveB.mustnt have C.cant haveD.ought to not haveDC此句谈论的是过去的经历，故 A、B 不合题意；must 表示判断和推测只能用在肯定句中。该句的意思为 Susan 不可能写出这样的报告来。ought to have done 的否定式为 ought not to have done。5.Jack _ yet,otherwise he would have phoned me.(N 97)A.mustnt have arrivedB.shouldnt have arrived C.cant have arr

10、ivedD.neednt have arrived6.-I stayed at a hotel while in New York.-Oh,did you?You_ with Barbara.(N 1998)A.could have stayedB.could stay C.would stayD.must have stayedCA此句的关键是后半句，“otherwise he would have phoned me”，此处为省略了条件句的虚拟语气，表示“如果到了他会打电话给我的”，由此可见，他肯定没到。此句并不表示判断，而是一个虚拟语气。4.shall;should 的特殊用法1.It

11、has been announced that candidates _ remain in their seats until all the papers have been collected.(2002上海)A.canB.willC.mayD.shall2.Its nearly 7:00.Jack _ be here at any moment.(N 95)A.mustB.needC.shouldD.canDC该句的意思为：“通知说所有的考生必须坐在位置上直到考卷收完了才能离开。”考生坐在位置上不能用“能够、将要、可以”来表示。而 shall 在第二、三人称里面表示一种“命令、警告、承

12、诺”等。3.-When can I come for the photos?I need them tomorrow afternoon.-They _ be ready by 12:00.(N 1998)A.canB.shouldC.mightD.need4.You cant imagine that a well-behaved gentleman _ be so rude to a lady.(2001上海)A.mightB.needC.shouldD.wouldBC此句应是店主对顾客的承诺。should 与 how;why 等表示疑问或否定的词连用时，用来表示一种惊奇的心情，意思为“居

13、然、竟然”5.情态动词的应答1.-Shall I tell John about it?-No,you _.Ive told him already.(N 1994)A.needntB.wouldntC.mustntD.shouldnt2.-Could I call you by the first name?-Yes,you_.(1998上海)A.willB.couldC.mayD.mightAC此句的关键是“Ive told him already”，由此可见，你就不必再对他说了。在回答“Could I”这类婉客气的请求时，只能回答“Yes,you can 或 may”。不能用 could

14、 或 might。3.-Will you stay for lunch?-Sorry,_.My brother is coming to see me.(N 1999)A.I mustntB.I cantC.I needntD.I wont4.-Write to me when you get home.-_.(2001北京春季)A.I mustB.I shouldC.I willD.I canBC此句的关键是“My brother is coming to see me.”所以我不能在这儿吃饭。在回答对方的请求或命令时，应该用“Yes,I will.”而不能使用 would 或 should

15、。6.情态动词的其它一些用法1.I wonder how he _ that to the teacher.(1996上海)A.dare to say B.dare saying C.not dare say D.dared say2.The fire spread through the hotel very quickly but everyone _ get out.(N 1997)A.had toB.wouldC.was able toD.could3.When he was there,he _ go to that coffee shop at the corner after work every day.(1996上海)A.wouldB.shouldC.had better D.mightDCA注意比较 dare 和 need 的两种词性的不同用法。注意比较 could 与 was able to 的用法区别。would 在此处表示过去惯常的动作。