【正文】 hen he was 10. 他十歲時就會寫詩。可能性低于may。（3）對must引導(dǎo)的疑問句，肯定回答為must，否定回答為needn’t 或 don’t have to .如：—Must I finish my homework?我現(xiàn)在必須完成作業(yè)嗎？—No, you needn’，你不必。(2).need 還可以作實義動詞，此時有人稱、數(shù)和時態(tài)的變化，如果是人作主語后邊多接動詞不定式。如：He doesn’t dare to break his 。如：What about/How about a drink? What about/How about taking Tom with us?(3).用“Why not...?”來提出建議，表示“何不……”not面后接動詞原形。（2）Should have done 表示對過去動作的責備、批評。He is seriously ill. He is going to die. He will be twenty years old. ③. be going to 含有“計劃，準備”的意思，而 will 則沒有這個意思，如： She is going to lend us her book. He will be here in half an hour. ④.在有條件從句的主句中，一般不用 be going to, 而多用will, 如： If any beasts es at you, I39。答案：B考點三: 不同情態(tài)動詞的否定意義也不同：1.（1）.can’t可譯為“不會”， 如：I can’t play basketball. 我不會打籃球。3.（1）mustn’t 表示不許，不可。 如：　You needn’t have bought it. 你沒必要買它（但你卻買了）。Many of the stars can not be seen because they are far away from ，因為它們離 我們太遠了。“must +have done/been”表示“過去一定發(fā)生過某事或存在過某種狀態(tài)”，不用于“musn’t+have”形式。 如：He may have finished reading the book. She might have given you some help，however bus she was.【情態(tài)動詞易混點歸納】易混點一: can和be able to:兩者表示能力時用法相同，但can只有原形“can”和過去式“could”兩種形式，在其他時態(tài)中 要用be able to 來表示。易混點二:can和may1. can 和 may 均可用來征求意見或許可，意為“可以”， 一般可互換使用。如：We can’t do it now because it’s too ，我們現(xiàn)在干不了。My brother was very ill, so I had to call the doctor in the ， 我只得半夜里把醫(yī)生請來。He wasn’t used to eating in a 。答案：AThe man in the office___be Mr. Black, because he went home just now.’t not ’t ’t【解析】 由下文 he went home just now 可知辦公室里那個人不可能是Mr. Black。t D. aren39。 can39。t at school. I think he ___ be ill. A. can B. shall C. must D. has to( )5 ___ I take this one? A. May B. Will C. Are D. Do3( )1 The children___ play football on the road. A. can39。t C. can39。t D. hadn39。t be ( )3 You39。t C. lean D. I may ( )3 —___ I take the newspaper away? —No, you mustn39。t B. can39。B. mustn’t。 B. would　　【巧學活用參考答案】1. 15 A D A B B 2. 15 C D B C A 3. 13 C A A 4. 13 D B C 5. 14 C B C C 6. 13 B A B 7. 13 C C C 8. 13 A D B情態(tài)動詞練習參考答案　　1. C。must 語氣過強；can 一般不用于肯定推測；need 意義不通，也不用于肯定句。should 表示按理應(yīng)當，大概。表示輕微的責備，句意為“我真的好擔心你啊?！　?2. D?！　?6. B。　　14. D。can not“不可能”，語氣太肯定。句意為“你本來可以住在 Barbara 那兒的”；而 must have done 只表示有把握的肯定推測，這與前面具有疑問語氣的 Oh, did you?不符。句意為“你千萬不要玩刀子，可能會弄傷自己的”?！癱ouldn’t have+過去分詞”表示對過去情況的推測。B. mustD. shall 15. How ______ou say that you really understand the whole story if you have covered only a part of the article? A. can C. had better B. dare saying　　C. not dare say B. can D. needn’t leave10. —Is John ing by train?　—He should, but he _______ not. He likes driving his car.　　A. must D. must have stayed8. —Are you ing to Jeff’s party?　—I’m not sure. I _______ go to the concert instead.　　A. must D. need7. —I stayed at a hotel while in New York.　—Oh, did you? You _______ with Barbara.　　A. could have stayed B. needt ( )3 —Must we do our homework first? —No, you___. You may have a rest first.A. mustn39。 must D. Must。 cut D. have。t D. isn39。t have to ( )2 He had to give up the plan, ___ he? A. did B. didn39。t C. don39。ve had enough.A. may not B. must not C. can39。t C. needn39。Can I …?的否定答語為 No，you can’t. 在口語交際中，要體會句子中的情感差別。 選項 B needn’t為情態(tài)動詞， 應(yīng)去掉to，故選 C.You _______ worry about me. It’s nothing serious. A. can’t B. mustn’t C. needn’t D. won’t【解析】 由題干 It’s nothing serious 可推斷，第一句意為“你不必為我擔心”， 故選C。如：The position is due to hand in this morning, so I had to finish it last night. 作文今天早晨到期，因此我不得不昨天晚上完成。 如：You mustn’t play football in the street. It’s too ，太危險了。易混點三: may be 和maybe　　 用法區(qū)別 常用位置may be may為情態(tài)動詞， be為動詞原形 句中，作謂語maybe 副詞，大概、也許，相當于perhaps 句首，作狀語例如：He may be wrong , but I’m not sure. 也許他錯了，但我也不確定。We’ll be able to see him next 。如：There was plenty of time. S