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1、Grammar： Modal verbs 情态动词情态动词情态动词（modal verbs)：表示说话人的语气或情态，如请求、命令、愿望、能力以及可能性等。英语的情态动词有：Shall一般只能用于第一人称。I shall think it over and Let you know my idea.我将考虑一下此事，然后告诉你我的想法。情态动词情态动词不能单独作谓语动词不能单独作谓语动词，只能与，只能与动动词原形一起词原形一起做谓语，没有人称和数的变做谓语，没有人称和数的变化。化。 A bird can fly . Fish cant live without water. You must
2、hand in your homework at once. You mustnt talk loudly in public.2.You _ (2.You _ (可以可以可以可以) leave ) leave nownow. . 否定句：否定句：否定句：否定句：一般疑问句：一般疑问句：一般疑问句：一般疑问句：肯定回答：肯定回答：肯定回答：肯定回答：否定回答：否定回答：否定回答：否定回答：就划线部分提问：就划线部分提问：就划线部分提问：就划线部分提问：Practice mayYou may not leave now.May I leave now?Yes, you may.No, you m
3、ay not.When may I leave?3.Lily _ (3.Lily _ (必须必须必须必须) go to ) go to the librarythe library. . 否定句：否定句：否定句：否定句：一般疑问句：一般疑问句：一般疑问句：一般疑问句：肯定回答：肯定回答：肯定回答：肯定回答：否定回答：否定回答：否定回答：否定回答：就划线部分提问：就划线部分提问：就划线部分提问：就划线部分提问：Practice mustLily mustnt go to the library.Must Lily go to the library?Yes, she must.No, she n
4、eednt.Where must Lily go?A.A.用用用用must(not), may(not), can(not)must(not), may(not), can(not)填空：填空：填空：填空：1.I dont understand this word. _ I use your 1.I dont understand this word. _ I use your dictionary? -Yes, please use it.dictionary? -Yes, please use it.2.The traffic light is turning red. We _ stop
5、.2.The traffic light is turning red. We _ stop.3.You _ borrow two books at a time.3.You _ borrow two books at a time.4.Tom _ play table tennis, but he _ play 4.Tom _ play table tennis, but he _ play football.football.5.Doctor, _ I take much medicine?5.Doctor, _ I take much medicine? -No, you neednt.
6、 But you _ drink a lot of water. -No, you neednt. But you _ drink a lot of water.6.Tom is good at drawing. He _ draw wonderful 6.Tom is good at drawing. He _ draw wonderful pictures.pictures.7.You _ smoke here. Its dangerous.7.You _ smoke here. Its dangerous.8.-May I turn on the TV? No, you _. My da
7、d is sleeping.8.-May I turn on the TV? No, you _. My dad is sleeping.Test YourselfMay/Canmustmay/cancancantmustmustcan mustnt/cannot/may notmay notcantTest YourselfB B.单项选择单项选择：1.-_ I ask you a question? -Sure1.-_ I ask you a question? -Sure A. May B. Do C. Should D. AmA. May B. Do C. Should D. Am2.
8、Can I go to the park, Mum? 2.Can I go to the park, Mum? -Certainly. But you _ be back by six oclock. -Certainly. But you _ be back by six oclock.A.A.can B. may C. will D. mustcan B. may C. will D. must3._ you dance? We need some more dancers for the talent show.3._ you dance? We need some more dance
9、rs for the talent show.A.A.May B. Can C. Must D. ShouldMay B. Can C. Must D. Should4.Im afraid I need a pair of glasses. I _ hardly see the words 4.Im afraid I need a pair of glasses. I _ hardly see the words on the blackboard.on the blackboard.A.A.can B. must C. may D. shouldcan B. must C. may D. s
10、hould5.You _ cross the road now. You have to wait until the light 5.You _ cross the road now. You have to wait until the light turns green.turns green.A. dont B. didnt C. wont D. mustntA. dont B. didnt C. wont D. mustntTest Yourself6.Must I answer this question in English? -No, you _.6.Must I answer
11、 this question in English? -No, you _.A.A.mustnt B. cant C. neednt D. shouldntmustnt B. cant C. neednt D. shouldnt7.Alice, please be quiet! The others _ hear clearly.7.Alice, please be quiet! The others _ hear clearly.A.A.cant B. mustnt C. shouldnt D. may notcant B. mustnt C. shouldnt D. may not8.I
12、am afraid I _ go with you. I am very busy these days.8.I am afraid I _ go with you. I am very busy these days.A.A.may not B. cant C. mustnt D. shouldntmay not B. cant C. mustnt D. shouldnt9.I am going to bed. I _ get up early tomorrow morning.9.I am going to bed. I _ get up early tomorrow morning.A.A. can B. must C. should D. May can B. must C. should D. May10.May I smoke here? 10.May I smoke here? -No, you _ only do that in the smoking room. -No, you _ only do that in the smoking room.A. can B. cant C. must D. mustntA. can B. cant C. must D. mustnt
