1、關于情態動詞用法總結第一張，PPT共三十五頁，創作于2022年6月情態動詞的語法特征2) 情態動詞不能單獨做謂語, 后面只能接動詞原形，ought to和have to除外，。 3) 情態動詞沒有人稱, 數的變化, 但有些情態動詞, 如can、will、have to、may等有過去式。1）情態動詞表說話人的某種感情或語氣，對某一動作或狀態的某種態度。第二張，PPT共三十五頁，創作于2022年6月1) Some of us can use the computer now, but we couldnt last year.2) Can she be in the computer cente

2、r?3) I though what he said could not be true.4) Can/Could I use your dictionary?5) Could you lend me a hand?1.表能力,意為“能，能夠”，can指現在，could指過去。3. 表示“請求” “允許”(表請求時，口語中常用 could 代替 can 使語氣更委婉，回答時用can)2. 表示推測，意為“可能”“或許”，用于疑問句或否定句，cant和couldnt意為“不可能”。1. can 與could第三張，PPT共三十五頁，創作于2022年6月4. can 用于疑問句或否定句中時，表驚異

3、、不相信等，意思是“可能、能夠”。6) How can you believe such a liar like him?5. cant/ couldnt have done 表示對過去情況的否定推測,意為“過去不可能做過某事”7) Susan cant have written a report like this.8) She cant have gone to school, it is Sunday .6. can/could have done表對過去的推測，意為“過去可能做了某事”。 could have done還可以表示對過去能做而未做的事情感到惋惜，意為“本能夠做某事可事實上

4、未做”9）Its a pity. Your class could have got the first prize.10）Where can Mary have gone?第四張，PPT共三十五頁，創作于2022年6月can表示“能夠”時與短語be able to同義，但can只用于一般現在時或過去時，而后者可用于各種時態。另外，can表示個人有某種能力，而be able to表示某人通過努力、克服困難做成某事，相當于succeed in doing sth.；can/be able to 第五張，PPT共三十五頁，創作于2022年6月Michael _ be a policeman, fo

5、r hes much too short. A. neednt B. cant C. should D. may2. Mr. Bush is on time for everything. How _ it be that he was late for the opening ceremony? A. can B. should C. may D. must3. - I stayed at a hotel while in New York. - Oh, did you? You _ with Barbara. A. could have stayed B. could stay C. wo

6、uld stay D. must have stayedMy sister met him at the Grand Theater yesterday afternoon, so he _ your lecture. A. couldnt have attended B. neednt have attended C. mustnt have attended D. shouldnt have attendedBAAA第六張，PPT共三十五頁，創作于2022年6月5. Theres someone outside. Who _it be? A. can B. need C. may D. m

7、ust6. -Is Jack on duty today? -It _ be him. Its his turn tomorrow. A. mustnt B. wont C. cant D. neednt7. It is usually warm in my hometown, but it _be rather cold sometimes. A. can B. need C. dare D. must8. The fire spread through the hotel very quickly, but everyone _ get away. A. were able to B. w

8、ould C. was able to D. couldACAC第七張，PPT共三十五頁，創作于2022年6月2. may 與might1. 表示“許可”或“請求”，有“可以”的意思，口語中 常用 might 代 may ,表示委婉語氣。 否定回答時用“must not”表“禁止，阻止”， 不用 “may not”. “may not” 表示“可能不” 。Eg: 1)- May I watch TV after supper? - Yes, you may. / No, you mustnt. 2) Today is Sunday. She may not in her office now.

9、2. 表示可能性。 意為“或許，可能” might 比 may 可能性小。Eg: 1) The girl might be sleeping this time of day. 2) They may be in the library now.第八張，PPT共三十五頁，創作于2022年6月4. may/ might as well + 動詞原形 “還是的好” “不妨干某事” Eg: You may as well go and have a look.3.may/might have done 表示對過去發生過的事情的推測，意為“可能已經做過某事”Eg: I cant find my sun

10、glasses. I may/might have left them in your office.第九張，PPT共三十五頁，創作于2022年6月1.Sorry Im late. I _ have turned off the alarm clock and gone back to sleep again. A. might B. shouldC. can D. will2.Peter _ come with us tonight, but he isnt very sure yet. A. must B. may C. can D. willAB第十張，PPT共三十五頁，創作于2022年

11、6月3. will 與would 1. 用于第二人稱的疑問句中，表“請求、建議”等，用 would 比用will 委婉，客氣些Eg: 1)Will you lend me your book? 2) Would you like a cup of tea?2. 用于表示意志或意愿，意為“會，愿意” 。will 指現在，而 would 指 過去。用于否定句中，表示“不會、不肯、不樂意”。Eg: 1) I wont do that again. 2) They said that they would help us. 3) No matter what I said, he wont liste

12、n to me.第十一張，PPT共三十五頁，創作于2022年6月3.表示習慣性動作。 譯作 “總是、慣于”， will 指現在常常，would 指過去常常。Eg: 1)This man is strange. He will sit for hours without saying anything. 2) Mary will keep asking some silly questions. 3) Every evening, she would sit by window, deep in thought. 4) We would sit around Grandpa after supp

13、er, listening to his stories.第十二張，PPT共三十五頁，創作于2022年6月If you _ wait here for another 5 minutes, our manager will come back. A. should B. will C. need D. must2. When he was there, he_ go to that coffee shop at the corner after work every day. A. would B. should C. had better D. might BA第十三張，PPT共三十五頁，創

14、作于2022年6月4. should與ought to1. ought to比should語氣更重。兩者都用于表勸告、建議。 意為”應該、應當”。但在疑問句中常用should。ought to的否定式為oughtnt to或ought not to。Eg: I should help her because she is in trouble. You ought to take care of the baby. Should I open the window? What should we do next? 2. 兩者都可表示推測，表示很大的可能性。意為 “可能、按理該”Eg: 1) I

15、ts 7 oclock, he should be at home. 2) They should have arrived by now.第十四張，PPT共三十五頁，創作于2022年6月3. ought to/should have done 本應該干某事可事實未干 oughtnt to/shouldnt have done本不該干某事可事實 卻干了Eg: You should have invited me to the party yesterday. You are right. I Should have thought of that. You shouldnt have eate

16、n all the cakes in one day. 4. Should可以用來表示說話人的驚奇等情感，意為“竟然，居然”Eg: 1) Its surprising that Mary should love such a person. 2) Its unbelievable that the boy should sing such a beautiful song.第十五張，PPT共三十五頁，創作于2022年6月1.You cant imagine that a well-behaved gentleman _ be so rude to a lady. A. can B. shoul

17、d C. may D. must2. - When can I come for the photos? I need them tomorrow afternoon. - They _ be ready by 12:00 A. can B. should C. might D. need3. We _ last night, but we went to the concert instead. A. must have studied B. might study C. ought to have studied D. would studyBBc第十六張，PPT共三十五頁，創作于2022

18、年6月5. shall1. Shall用于第一、三人稱的疑問句中，表示說話人征求對方的意見或請求。 Eg: 1) Shall we begin our discussion? 2) Shall I change the clothes for the child? 3) Shall Tom go there with me tomorrow? 4) Henry is waiting outside. Shall he come in? 第十七張，PPT共三十五頁，創作于2022年6月2. Shall用于二、三人稱的陳述句，表示說話人 的允諾、警告、命令、威脅等語氣。Eg: 1)You shal

19、l get an answer from me tomorrow. 2) He shall be punished. 3) You shall go with me. 4) Tell Jerry that he shall get a gift if he behaves well.第十八張，PPT共三十五頁，創作于2022年6月Chairman Zhang, many people want to see you. _they wait here or outside? A. shall B. can C. should D. may2. You _use my bike if you ca

20、n return it to me before Ileave here. A. should B. shall C. need D. must3. You _be punished if you break the rule. A. shall B. should C. need D. mustABA第十九張，PPT共三十五頁，創作于2022年6月must/haveto/need1.must用于一般問句中,肯定回答用must,否定回答用neednt或dont have to，意為“不必”。mustnt表示“禁止，不允許” MustIfinishallhomeworkatatime? Yes,

21、 you must. No,youneednt/dont have to.第二十張，PPT共三十五頁，創作于2022年6月I dont like this TV set. We must buy a new one. Mother was out, so I had to look after the shop.2.表示“必須”這個意思時，must和haveto稍有區別。must著重說明主觀看法，haveto強調客觀需要。另外，haveto能用于更多時態。 第二十一張，PPT共三十五頁，創作于2022年6月Youmustbethenewteacher. Hemustbejoking. Ther

22、eisnobodyhere.Theymusthaveall gonehome. 3.must表示對某人某事的肯定猜測, 作“準是”, “一定” , 用于肯定句中。對過去發生的事情作肯定判斷用must have done，意為過去一定已經做過某事。第二十二張，PPT共三十五頁，創作于2022年6月Why must you always interrupt me?If you must smoke, do it outside, pleaseWhy must it rain on Sunday?4. must表示與說話人愿望相反，翻譯成“偏要，硬要，非要”第二十三張，PPT共三十五頁，創作于202

23、2年6月5.注意對need問句的回答: -Need I finish the work today? -Yes, _. No, _. No, _.you mustyou needntyou dont have to-Must we do it now? -No, you _. neednt(dont have to)第二十四張，PPT共三十五頁，創作于2022年6月【考例】The boss has given everyone a special holiday, so we _ go to work tomorrow. (上海 2007春)A. cant B. mustntC. neednt

24、 D. shouldnt【點撥】考查情態動詞。根據題意, 可知這里表示“沒有必要”, 故只能選C項。第二十五張，PPT共三十五頁，創作于2022年6月【考例】What do you think we can do for our aged parents?You _ do anything except to be with them and be yourself. A. dont have to B. oughtnt toC. mustnt D. cant 【點撥】根據題意“除了和他們呆在一起做你自己外, 沒有必要做任何事情?！笨芍@里選擇dont have to表示“不必”。故選A項。第

25、二十六張，PPT共三十五頁，創作于2022年6月【考例】 -Jane has just come back from China and she looks happy.- She _ her trip very much.must enjoy B. must have enjoyedC. may enjoy D should have enjoyed第二十七張，PPT共三十五頁，創作于2022年6月【考例】 You _ return the book now, you can keep it until next week if you like.cant B. mustntC. needn

26、t D. may not第二十八張，PPT共三十五頁，創作于2022年6月【考例】Where is Dad, Mary? He _ the flowers in the garden.must water B. must be wateringC. Must have watered D. watered第二十九張，PPT共三十五頁，創作于2022年6月【考例】-Whats the matter with the man hanging his head there? -Well. If you _know, he was caught stealing my bike.must B. may

27、 C. can D. shall第三十張，PPT共三十五頁，創作于2022年6月情態動詞表推測用法小結情態動詞對現在或將來情況的推測對現在或將來正在進行的推測對過去情況的推測肯定推測 mustmust+vmust+be doingmust+have done可能推測may/mightmay/might+vmay/might+be doingmay/might+have done否定推測cant/couldntcant/couldnt+vcant/couldnt+be doingcant/couldnt+have done疑問推測can/couldcan/could+vcan/could+be doingcan/could+have done第三十一張，PPT共三十五頁，創作于2022年6月 情態動詞 + have done這是歷年高考熱