情態(tài)動詞分類詳解和練習(xí)講解課件

1、can泛指一般性的能力 She can speak French .表示可能性（推測） （客觀的可能性，并不牽涉具體的事情是否會發(fā)生） （多用于否定式、疑問式）請求 疑問句，征求意見，多用第二、三人稱 Can you give a room for the night?許可，允許 在肯定句中 ，can 表現(xiàn)在 （側(cè)重客觀 “許可”）could表示能力（表示過去的能力） He could sing well. Could與 hear，see， understand連用時，表示過去做某事的能力。 在一般過去時里，敘述一樁具體事情時，肯定句用could, 但不一定完成。表示潛在的可能性、理論上或邏輯

2、上存在的可能性。表示請求-比can 委婉客氣。- Could I come here ? - Yes, you can. A , Yes , you may B, Yes, you could C, No, you cant D, Yes, please 表示許可在肯定句中 , could 表過去（用過去時） My English teacher said that I could go to his office whenever I had any questions . cant . too / enough cant but do sth can but cant but can (c

3、ould) not help but can (could) not choose but May might 表示可能性（推測）(表示某事發(fā)生的實(shí)際可能性)-Will you answer the doorbell ? - It may be your father. We may go camping next Sunday. （多用于肯定式、否定式）According to the weather forecast, it may rain tomorrow.請求在疑問句中，征求對方意見時，第一人稱用may, might.-May I watch TV now? - No, you mu

4、stnt (cant) - No ,please dont -Yes , you may. (- Yes, please.)( - Yes, certainly. )-No , you mustnt許可，允許 （側(cè)重說話人給予的“許可”） Students may use any instruments while they are making experiments. Since you have finished your work now, you may go out to play. 注意：may一般不用于反意疑問句，其反問部分用could. may well do sth may

5、 /might (just ) as well if I may say so if I may ask I wish go go home , may I ? May the friendship between our peoples last forever ! be able to 表示在具體事情中體現(xiàn)的具體能力(1)When he was three ,he _( 會游泳). (2)You _(不能喝酒) (3)The fire broke out , but he_( 能 ) escape from the building . (4)We _(能)arrive on time.(

6、5)Try hard, you w_(會) go to college. shall用于第一、三人稱疑問句中，表征求意見，請示。（為他人提供服務(wù)或幫助） （1）Shall we begin our class? （2）- Shall the driver wait outside ? - yes , please. （3）When shall my father be able to leave hospital ?用于第二、三人稱肯定句中，表命令、警告、許諾。 You shall go with me . You shall have the book when I finish it .說

7、話人征求對方意見，建議做謀事 Shall I (we)用于第一人稱， 表示決心或決定。 I shall( will ) come if I want to .用于正式文字， 表示許諾、命令、法令?！氨仨?、必將”Will表示“意愿、決定、允許” If you have any difficulties, I will lend you a hand . I will never do that again.Come whenever you will.表示臨時做的決定。 - Sorry , I forgot to post your letter. - Never mind, I will go

8、 now. 在疑問句中用于第二人稱，表示“詢問或請求” Will you please pass me that book? Wont you come to our party this evening?回答請求、命令的句子時。 -Dont touch my books when I was away. - I wont.表示習(xí)慣?！翱偸恰倍嘤糜诘谌朔Q（現(xiàn)在時） My father will talk for hours if you give him the chance. Wont強(qiáng)調(diào)一種無可奈何，難以改變。表示對某種必然進(jìn)程的預(yù)測 Fish will die without wate

9、r. I think he will be all right now .在否定句中表示一種趨勢或功能喪失。 I bought a radio yesterday , but it wont work now .當(dāng)詢問對方意愿時，可以用will/ would you. Will you come this way , please? Would you have another drink?wont you 、can /could you would you like to ?would you mind .?-Whats the name? -Khulaifi. _I spell that

10、for you?A. Shall B. Would C. Can D. MightShould表示勸告、建議、命令“應(yīng)該” You should wash your hands first.We should learn how to use computer.Should和why, how 連用， 表示“難以理解，不可思議” I dont know why you should think I did it . - Will you please help him carry the heavy box? - Why should I ?用于第一人稱， 表示委婉提出意見或看法 I shoul

11、d say he is the right person for the job. 表示推測，用在肯定句中，對現(xiàn)在的情況或可能發(fā)生的事的主觀推測或期待。意為“想必，大概，或許” 1.It should be a nice day tomorrow. 2.He should be around sixty years old.5、在if條件句，從句謂語用should+動詞原形，主句用虛擬6、should表驚訝, 惋惜, 譯為“竟然”。WouldWould習(xí)慣性動作“總是” 用于過去時。Used to 與動作、狀態(tài)連用 （1）When I was a child, I_ get up early

12、and go to school. （2）He _ come to my help whenever I was in trouble. （3） He _ be a teacher when he was young .Would側(cè)重于過去一段時間的習(xí)慣， used to 側(cè)重和現(xiàn)在的對比 （1）They _ go swimming in that river when spring came. （2） I _ drink a lot but I am used to smoking now在否定句中表示一種趨勢或功能喪失。(用于過去時)However hard I tried , the d

13、oor wouldnt open.Would rather .than “寧可。也不”Would sooner.than .Would (just) as soon as Would you like ?Would you please ? Would you mind doing ?dare只用否定句、疑問句、條件狀語從句 (改錯) She dared not do it yesterday. Dare you to go home alone at eleven in the evening ? He asked me if I dare go there alone ( )實(shí)動詞（后接帶

14、to的不定式， 否定句to可以省略） I dare say I dare say there are some mistakes.dare 的過去式dared （改錯） No one dared to say that he could not see it. He _ go home yesterday. (不敢)need“敢”，后接動詞原形，用于否定或疑問及 if 或 whether 之后，肯定用must , have to代替?？隙ň渲凶鲗?shí)動詞 You neednt call him. - Need I come ? - No , you neednt Yes , you must（sh

15、ould 、ought to）must1. 表“必須”（主觀看法）必須；無過去式，用間引 (抱怨)語氣，“偏偏”2. 疑問句 Must I ? Yes, you must.（一定） No, you neednt./ you dont have to.(不必)3.否定句 表示禁止, 譯為“不準(zhǔn)”、“不允許”have to1. 表“必須”（客觀需要）不得不，有多種時態(tài)。 2. 疑問句 Do you have to go today? Yes, we do. You dont have to worry about that.3.否定句 dont have to 譯為“不必”表達(dá)推測的情態(tài)動詞Must必定、必然 (肯定式)對現(xiàn)代推測 Must be . Must be doing對過去推測 Must have done Must have been