情态动词详解、典型例题

1、情态动词详解、典型例题及模拟试题 1 must、can、could、may、might、will / would、shall / should、need、daremust的肯定式表示“必须”，否定式mustnt表示“禁止，严禁”的意思。如：You must come here You mustnt take the book away from the library 同义词为have to do ， 表示“不得不”一般表示客观原因造成的“不得不、被迫”如：My car was broken ， so I had to walk home can的肯定式表示“能、会”“可以”，否定式cant表

2、示“不能，不会，不可以”。如：He can swim I cant swim You can go now 同义词为be able to do ， 也表示“能，会”一般表示经过努力才具有的能力与can的区别，主要是它可有时态。如：He was able to count to 10 ， 000 when he was 3 He will be able to walk next month may表示“可以”，否定式may not表示“不可以”表示经某人允许。如：You may go home now You may not go home now will表示“将要，打算”用于将来时，否定式

3、will not / wont表示“将不”“不打算”。如：He will come here next week He wont come home shall用于第一人称后表示“将要”“打算”否定式shall not表示“将不，不打算”。如：We shall go home together I shall go there first 用于其他人称后表示“必须，得”与must相近，但表示别人认为主语“应该，得”如：He shall go and see his aunt Shall he open the door ?need表示“需要”，否定式neednt表示“不需要，不用”如：He n

4、eed do some washing You neednt stay here any more dare表示“敢于”否定式dare not表示“不敢”如：He dare say no to wrong things He dare not go home alone at night 注：need与dare除情态动词用法外还有实意动词用法，且意义不变。如：He needs some water He doesnt need to go home He needs to go to the hospital right now 2 could ， would ， should ， might

5、这四个词除了做过去式外，还表示委婉语，此时与时态无关。could表示“可以”如：You could open the door Could you please give me the cup ?Could I come in ?would表示“可以，是否可以”此时一般只用疑问式且只用于you如：Would you please give me the book ?Would you please not go away ?would like to do表示“愿意，喜欢”如：Would you like to go with me ? I would like to buy this boo

6、k should表示“应该”“必须”；ought to 用于表示“应该”（强调客观上）：（大多情况可用 should 代替）如：You should give me the book back What should we do next?He shouldnt go out on such a bad day You ought to go to see the doctorYou oughtnt（ought not）to smoke so muchEach member shall wear a name card（表示规定）I should answer his letter as so

7、on as possible（表示应该）You shouldnt judge a man always by the clothesThe rules shall take effect onJan 1stmight表示“可以”与may基本上可互换，但他语气较弱。如：You might go home ， but you must finish your homework 3 情态动词之间的问答与反义疑问句May / Can I go home now ?Must I stay here ?Shall we go now ? All right Need I return the book ?

8、Shall I make some tea ?【典型例题】例1 Its nearly seven oclock Jack _ be here at any momentA must B need C should D can（答案为C，表示有把握的主观推测用should不用can，can表示自然而然的推测，且很少用于肯定句中）例2 Mr Brown， many students want to see you， _ they wait here or outside?A shall B will C can D would（答案为A，shall用于第三人称时表示征求某人对此人的意见）例3 Wh

9、en can I come for the photos? I need them tomorrow afternoon They _ be ready by 12：00A can B should C might D need（答案为B，同例1）例4 I _ advise you not to do that again in the futureA dare B would C should D need（答案为C，此处should译为“必须”，表劝告）例5 When I went out，whom _ I meet but our old friend?A should B could

10、C might D would（答案为A，表示“应该”，“需不需要”，征询意见）例6 The room is so dirty _we clean it?Of courseA Will B Shall C Would D Do（答案为B，同上）例7 Whats wrong with your car?I dont know It just _ startA mustnt B couldnt C wouldnt D shouldnt（答案为C，此处不强调车子的能力，而强调事实本身，故用wouldnt，且此句中宜用cant而不是couldnt）例8 You _ take my raincoat I

11、 _ do without it till tomorrow morningA may， can B may， mayC can， may D must， can（答案为A，前面表示许可，后面表示能够）例9 How_ there be such a thing?A may B can C must D will（答案为B，表示可能性大的推测）例10 He_ have the book when I finish reading itA will B shall C must D ought（答案为A，表示将要）例11 Be quiet， please， or his voice _ be he

12、ardA cant B mustnt C isnt able to D may not（答案为D，表示可能性，A太绝对）例12 Why_ you always interrupt me?A can B will C may D must（答案为D，此处表示总得，一定要）例13 What _ we to do next ?A have B used C ought D are（答案为C，ought to do疑问式）例14 If your children _ do as I tell you ， you _ let them beA wont， shant B（不填）， willC dont， shant D must， shall（答案为C，主将从现）例15 Man _ die without air or waterA will B shall C should D would（答案为A，表示大的可能性）例16 This pen looks like mine， yet it isnt Whose _ it be?A must B can C would D will（答案为B，推测提问）例17 _ I to go and apologize for my mistake?A Should B Need C Ought D Have（答案为C，ought to do疑问式）例