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1、情态动词主要用法:一. can 的用法：1.表能力 2.表示可能性 3.表示同意做某事,意为 “允许”, “可以” 4.表推测(主要用于否定句,疑问句)He cant speak Chinese. (表示能力) Can I smoke here? （表示许可）Anybody can make mistakes.（表示可能）二. must的用法1.表示按命令、规定、责任等必须要做的事。在回答由must引导的一般疑问句时,如果表示肯定，用must;如果表示否定,必须用neednt。-Must I copy it now?-Yes, you must. (No, you neednt.)2. 表示肯
2、定的推测，意为”一定会”，“一定是”，多用于肯定句。三. need的用法need作为情态动词使用时，多用于疑问句和否定句，后跟动词原形；作为行为动词时，后跟带to的动词不定式。neednt意思是“不必”。他需要去看医生。He _ see a doctor. 四 may的用法1.表示“可以” ，用以询问或说明可否做某事。2.用于表推测某事可能发生或某情况可能存在，意为 “可能”。 情态动词练习：( )1-Susans parents have bought a large house with a swimming pool. -It _ be very expensive. Amust Bca
3、n Cmustnt D、cant( )2The notebook_ belong to SarahHer name is on the cover Amight Bcant Cmust Dmustnt( )3.- May I put my bike here? - No，you_You should put it over there Acouldnt Bneednt Cmustnt Dwont( )4Boys，you_ be sitting in this roomIt is for your teachers only Ashouldnt Bdont have to Cwont Dneed
4、nt( )5-Whose pizza is this? -I think it_ be mineIm the only one who ordered a pizza Amust Bcould Cmight Dcant( ) 6. My brother cant sing but he _ play the piano. A. cant B. doesnt C. can D. dont( )7. You look tired. You _ to have a good rest. A. must B. may C. should D. need( ) 8.- Why do you think
5、the man is running ? -He _ be _ for exercise because he is wearing a suit . A. must , running B. cant ; run C. cant ; running D. could ; running ( )9. -Mum , Ive been studying English since 8 oclock. _ I go out and play with Tom for a while? -No, Im afraid not. Besides, its raining outside now. A. Cant B. Wouldnt C. May not D. Wont
情态动词主要用法及练习（无答案）
