情態(tài)動詞用法講解與運(yùn)用

1、.情態(tài)動詞的用法講解經(jīng)典例題1. I know by what time you want the project to be done? By the day after tomorrow. you finish it on time? A. May; CanB. Must; Need C. Could; MustD. Need; Would2. I follow you. Would you please repeat it? A. can't B. mustn't C. needn'tD. shouldn't3. Who's singing in

2、the garden? It be Mr. Brown. He always practices singing at this time.A. must B. can't C. need4. May I take this magazine out of the reading room? No, you _. You read it in here.A.mightn'tB.won'tC.needn'tD.mustn't5. You _ touch an electric fire. 

3、;It's dangerous. A. need B. must C. needn't D. mustn't6. _ you come with me to Lang Lang's piano concert this evening? I'd love to, but I have to study for my math test.A. Should B. May C. Must D. Can7. Children _ sit in the front seat of a

4、 car. It's too dangerous. A. need B. needn't C. must D. mustn't8. Look, someone left a book. Oh, yeah This book _ be Kittys. Only she likes to read this kind of books.A. canB. mustC. may D. might 9. Look! The traffic light has turned redWe_ stop our car Acan Bcant Cmust Dmustnt 10. Do yo

5、u have any plans for this Sunday? Im not sure. I _ go to the countryside to see my grandmother. A. can B. must C. may D. need 11. As middle school students, we _ be afraid of difficulties if we want to make our dreams come true. Amust Bshouldnt Cneed 12. You return the book now. You can keep it unti

6、l next week if you like.A. have to B. cant C. mustnt D. neednt 13 Mom, must I go shopping with you? No, you You can watch the film Big Hero 6 with your friendsAneedntBcantCshouldntDmustnt 14. Harrys been driving all day he be tired. A. need B. can C. shall D. must 15. Its surprising that Mr. Mas lit

7、tle daughter speak English so well. A. mustB. can C. mustntD. cant【答案與解析】1. A。句意：我可以知道你想這個工程何時完成嗎？到后天。你能按時完成嗎？ may可以；can可以；must必須；could用于一般疑問句通常表示懇求；need需要。題干問句是懇求，可用may或者could，排除B、D兩項(xiàng)；答句是詢問能否按時完成任務(wù)，應(yīng)選can。應(yīng)選A項(xiàng)。2. A。句意：我聽不懂你的話。請你再重復(fù)一遍可以嗎？ can't不能；mustn't不準(zhǔn)；needn't不必；shouldn't不應(yīng)該。根據(jù)句意可

8、知答案為A項(xiàng)。3. A。句意：誰在花園里唱歌？一定是布朗先生。他總是在這個時候練習(xí)唱歌。 must表示“一定；can't表示“不可能；need表示“需要。應(yīng)選A。4. D。句意：我可以把雜志帶出閱覽室嗎？不，你不可以。你在這里讀。mightn't可能不；won't不會；needn't不需要；mustn't制止，不許。May I.? 的否認(rèn)答復(fù)通常是No, you mustn't/can't，應(yīng)選D項(xiàng)。5. D。句意：你千萬不要摸電暖器。它很危險。need需要；must必須；needn't不必；mustn't千萬不要，表制止

9、。根據(jù)題意可知選D。6. D。句意：今晚你可以跟我去聽朗朗的鋼琴音樂會嗎？我很想去，但我不得不為我的數(shù)學(xué)測試而學(xué)習(xí)。should表示“應(yīng)該；must表示“必須，一定。may和can都可表示懇求、答應(yīng)，意為“可以，但may用在一般疑問句中表示懇求、答應(yīng)時，其主語常用第一人稱，故答案為D。7. D。句意：制止兒童坐在汽車的前排座位上。那樣太危險。need需要；needn't沒必要；must必須；mustn't表制止。根據(jù)句意可知答案為D項(xiàng)。8. B。本句意為：看，有人把書落在這里。這本書一定時Kitty的，只有她喜歡讀這類型的書。由“only可知此處表示肯定，故答案選B。 9. C

10、。C項(xiàng)意為“必須。根據(jù)常識可知，必須遵守交通規(guī)那么，紅燈亮必須停車。應(yīng)選C。 10. C。句意：你這周日有什么方案嗎？我不確定，我可能去鄉(xiāng)下看我奶奶。can表示推測時經(jīng)常用于否認(rèn)句，表示肯定不；must肯定，表示把握很大的推測；may可能，也許，表示推測的可能性很??；need需要。根據(jù)上句的還沒有確定，可知說話的可能性小，應(yīng)選C。11. B。句意：作為中學(xué)生，假如我們想要我們的夢想成真，我們就不應(yīng)該害怕困難。must必須，應(yīng)該，一定；shouldnt不應(yīng)該；need需要，不得不。根據(jù)題意，應(yīng)選B。12. D。句意：你不必如今歸還這本書，假如你喜歡，你可以到下周再還。have to必須；cant

11、不能；mustnt一定不要；neednt不必。根據(jù)You can keep it until next week if you like可知用neednt。13. A。媽媽，我必需要跟你去購物嗎？不，你不需要。你可以和你的朋友們一起看電影?超能陸戰(zhàn)隊(duì)6?。當(dāng)用must提問時，肯定答復(fù)是Yes, you must否認(rèn)答復(fù)是No, you neednt.或者No, you dont have to應(yīng)選A項(xiàng)。 14. D。此題意為“Harry開了一整天車，一定很累，表示肯定推測，應(yīng)選must。 15. B。句意：真的很令人驚訝，馬先生的小女兒英語可以說得如此好。must必須；can能，會；mustn

12、t制止；cant不能。根據(jù)句意可知答案為B項(xiàng)?！居梅ㄖv解】考試要求：中考要求掌握情態(tài)動詞在一般疑問句的問與答，理解情態(tài)動詞表示猜測的用法及情態(tài)動詞的被動語態(tài)應(yīng)用。情態(tài)動詞表示說話人對某一動作或狀態(tài)的態(tài)度，認(rèn)為“可能，“應(yīng)該或“必要等。情態(tài)動詞本身詞義不完全，不能獨(dú)立作謂語動詞，必須和動詞原形連用ought除外。情態(tài)動詞沒有人稱和單復(fù)數(shù)的變化。常用情態(tài)動詞有cancould, maymight, must, ought to, have to, need, dare, shallshould, willwould。1. 情態(tài)動詞can 和could的主要用法1表示才能，意為“能，會。 Can y

13、ou swim? 你能游泳嗎？ His granny is over eighty but still can read without glasses. 他的奶奶雖然八十多歲了， 但是仍舊不用戴眼鏡可以閱讀。注意：can和be able to表示“才能時的區(qū)別： can只有如今式和過去式兩種形式，而be able to除了如今式和過去式，還有將來式和完成式等多種形式。 She will be able to help you tomorrow afternoon. 明天下午她將能幫助你。 This is the information that I have been able to get

14、 so far. 這是我到目前為止能得到的信息。2表示“答應(yīng)，允許。can 和could沒有時態(tài)上的區(qū)別，could比can在語氣上更客氣；在答復(fù)could引導(dǎo)的一般疑問句時要用can。 Could/Can you tell me the way to the railway station? 你能告訴我去火車站的路嗎？ Could I use your pen? 我可以用你的鋼筆嗎？Yes, of course you can. 是，當(dāng)然你可以。3表示“可能，can多用于否認(rèn)句和疑問句。 We know that a computer cant think for itself. 我們知道計(jì)

15、算機(jī)不可能自己考慮。 Can she still be alive after all these years? 這些年過后，她仍舊可能活著嗎？4表示否認(rèn)推測，意為“不可能。 The shy boy cant be our monitor. 對如今情況的否認(rèn)推測 那個靦腆的男孩不可能是我們的班長。 The ground is dry. It cant have rained. 對過去情況的否認(rèn)推測 地面是干的，不可能下過雨。2. 情態(tài)動詞may和might 的主要用法1表示答應(yīng)，意為“可以。might比may語氣上更客氣，更委婉。在答復(fù)may和might引導(dǎo)的一般疑問句時，肯定答復(fù)用may，否

16、認(rèn)答復(fù)要用mustnt。 May/Might I go now? 我可以如今去嗎？Yes, you may. / No, you mustnt. 是，你可以。/ 不，你一定不要。 May/Might I have a talk with you? 我可以和你聊聊嗎？2表示可能性，意為“可能，might的可能性比較小。 You may/might walk for miles here without meeting anyone. 你可能在這走數(shù)英里都見不到任何人。 He may/might be sick. 他可能是病了。3表示對可能的情況推測，might的可能性比較小。 That woma

17、n goes into the classroom. She may/might be our teacher. 那個婦女進(jìn)了教室，她可能是我們的老師。 They might/may have gone out at that time. 在那個時候，他們可能出去了。4表示祝愿。may+名詞或代詞+動詞 May you succeed! 祝你成功！ May God bless you! 上帝保佑你！3. 情態(tài)動詞must 的主要用法1must表示“必須，“應(yīng)該，否認(rèn)式must not/mustnt表示“不準(zhǔn)，“制止。 在答復(fù)must引導(dǎo)的一般疑問句時，否認(rèn)答復(fù)要用neednt或dont hav

18、e to。 The work must be finished as soon as possible. 工作必須盡可能快得完成。 You mustnt swim here，because its dangerous. 你一定不要在這游泳，因?yàn)楹芪ｋU。 Must I be home before ten oclock? 十點(diǎn)鐘，我必須在家嗎？No, you neednt/dont have to. 不，你不必一定在。2表示肯定推測，意為“一定，肯定。 You must be hungry after such a long walk. 對如今的肯定推測 漫長的步行后，你一定是餓了。 I did

19、nt hear the phone. I must have been asleep. 對過去的肯定推測 我沒有聽到那個 。我一定是睡著了。注意：must和have to的區(qū)別 must表示說話人的主觀看法，而have to表示客觀需要；must只有一種形式，可用于一般如今時和一般將來時，而have to有多種形式，可用于不同時態(tài)。 As a student, I must study very hard. 作為一個學(xué)生，我必須努力學(xué)習(xí)。 I have to be at my office before eight every morning. 每天早上八點(diǎn)之前，我必須在我的辦公室。4. 情態(tài)

20、動詞 need 的主要用法1need作情態(tài)動詞一般用于疑問句、否認(rèn)句和條件句。need無人稱變化，后接動詞原形，意思是“需要。 在答復(fù)need引導(dǎo)的一般疑問句時，肯定答復(fù)用must，否認(rèn)答復(fù)用neednt。 He neednt do that. 他不需要那樣做。 Need you go now? 你需要如今去嗎？Yes, I must. / No, I neednt. 是，我必須如今去。/ 不，我不需要。2need可用作行為動詞，用法與其他的行為動詞一樣。 We need to think it over. 我們需要仔細(xì)考慮。 Does he need to go now? 他需要如今去嗎？

21、She didnt need to know it. 她不需要知道它。5. 情態(tài)動詞 shall 的主要用法shall用作情態(tài)動詞，用于第二和第三人稱，表示說話人的意愿，有“命令，“警告，“許諾的意思。在疑問句中，shall用來征詢對方的意見或懇求指示，多用于第一人稱。 You shall do as I say. 你應(yīng)該按照我說得做。 Shall we take a walk after dinner? 我們飯后去漫步好嗎？ Lets go home together, shall we? 讓我們一起回家，好嗎？6. 情態(tài)動詞 should 的主要用法1表示“應(yīng)該，說話人主觀上認(rèn)為的責(zé)任和義

22、務(wù)，可用于所有人稱。 You should keep your promise once you make it. 你一旦許諾，就應(yīng)該兌現(xiàn)。 2should have done表示過去應(yīng)該做而實(shí)際上沒有做的事，而shouldnt have done表示過去不應(yīng)該做而實(shí)際上已經(jīng)做了的事。 Its eleven oclock. He should have arrived here by now. 十一點(diǎn)鐘了。他應(yīng)該不晚于如今到這。 You shouldnt have told anyone about that. 你本不該告訴任何人關(guān)于那事。7. 情態(tài)動詞ought to 的主要用法表示“應(yīng)該，

23、沒有人稱和時態(tài)的變化，只有一種形式。否認(rèn)形式為ought not to縮寫形式為oughtnt to，疑問形式為ought+主語+to+動詞原形。 You ought to do it now. 你應(yīng)該如今就做。Ought we to go there now? 我們應(yīng)該如今就去那嗎？Yes, you oughtto. 是，你應(yīng)該去。No, you ought notto. 不，你不該去。8. 情態(tài)動詞 will 的主要用法表示“意志，“意愿，用于各人稱。在疑問句中用于第二人稱，表示詢問對方的意愿或向?qū)Ψ教岢鰬┣蟆?We will help her if she asks to us. 假如她

24、問我們，我們就愿意幫助她。 Will you please give him a message when you see him? 當(dāng)你看見他時，給他稍個信好嗎？9. 情態(tài)動詞 would 的主要用法would是 will 的過去式，表示過去的“意志，“愿望，用于各個人稱。用于陳述句和疑問句中還表示說話人的意愿或向?qū)Ψ教岢鰬┣螅Z氣比will委婉。 She said that she would do that whatever happened. 她說無論發(fā)生什么她都愿意做。 I promised you that I would do my best to help you. 我保證過我

25、將盡力幫助你。 Would you like some apples? 你想吃蘋果嗎？ Yes, Id like to. 是的，我想吃。 I would like to go with you tonight. 今晚我想和你一起去。10 .理解含有情態(tài)動詞的被動語態(tài)構(gòu)成形式及其根本用法情態(tài)動詞的被動語態(tài)構(gòu)造為：情態(tài)動詞+be+過去分詞; 其時態(tài)及句型的變化僅由情態(tài)動詞完成，“be+過去分詞部分不變。含有情態(tài)動詞的被動語態(tài)變?yōu)榉裾J(rèn)句時，應(yīng)在情態(tài)動詞后面加not；變?yōu)橐话阋蓡柧鋾r，應(yīng)將情態(tài)動詞移到句首。 Tables can be made of stone. 桌子可由石頭制造。 Tables c

26、ould be made of stone at that time. 那時桌子可由石頭制造。一般過去時Can tables be made of stone? 桌子能用石頭制造嗎？疑問句Waste paper should not be thrown here. 廢紙不應(yīng)該扔在這里。Should it be done by Li Ming？ 這件事應(yīng)該是李明干嗎？穩(wěn)固與拓展I.單項(xiàng)選擇。1The last bus has gone. We _ go home on foot. A. couldB. mustC. have toD. can 2 _ you please tell me how

27、 to get to the airport? A. ShallB. MayC. ShouldD. Will3Post the letter for me when you go out, _ you? A. willB. doC. dont D. shall 4. I _work out the maths problem yesterday, but I can work it out now.  A. cant    B. couldnt      C. may not 

28、0;   D. neednt5. Judging by her accent, she _ be an American. A. cantB. mustntC. needntD. will6_ you turn down your radio, please?Yes, I can. AMay BNeed CMust DCan7Can I wear any clothes I like to school?No, you cantYou _ wear a uniform. Amight Bmust Cwill Dwould8Everyone _ go through the

29、security check 安檢 when entering the World Expo Park. A. can B. may C. must D. ought9Must I clean the room now?No，you _.You can do it tomorrow. Amustnt Bmust Cneednt Dneed10I saw Kevin in the supermarket this morning No，it _ himHe moved to Canada last week Acan be Bmust be Ccant be Dmustnt be11Look a

30、t that girl! Is it Susan?No, it _ be her. She has gone back to her hometown. Amustnt Bcant Cneednt Dwouldnt12 Im feeling much better now so you _ call the doctor. A. couldnt B. wouldnt C. cant D. neednt13Dad，must I do my homework now? NoYou _ play games with your friends for a little while Awould Bn

31、eednt Cmay Dmust14What will the weather be like tomorrow?It _ be rainy, cloudy or sunny. Who knows? Amust Bmight Cshall Dshould15How was the youth club last night, Mark?It was great fun. You _ come. Amust Bcan Cshould Dmay16_ your American friend eat with chopsticks? Yes，he can. But he cant use them

32、 well ACan BShould CMust D. will17. _ I take some photos in the hall? No, you _ .A. Can; neednt B. Must ; mustnt C. Could; wont D. May; mustnt18. Look! A book is on the floor. Whose is it? It _be Rick's. It has his name on it.A. mustn't B. can't C. must D. need19.This toy Mickey Mouse _b

33、e Amy's. she's the only kid at the picnic. A. must B. can C. need D. can't 20一Shall I tell Jim the good news?一No, you_Ive told him alreadyAwouldnt Bneednt Cshouldnt DmustntII.用方框內(nèi)的情態(tài)動詞填空。每詞只用一次need, can, cant, shall, shouldnt, may, must, mustnt, have to, would 1.      

34、; I show him the way?No，you neednt.2. Can you answer this question in French?No, I    .3. May I keep the book for three weeks? No, you     .4. Nobody      live without air or water.5. You      not worry. Everything will be al

35、l right.6.       I have some chocolates now?   No, you mustnt.7. Children     be left alone.8. I     finish my homework before I go to bed.9.      we go out for a walk? Thats a good idea.10.      you like

36、some fish?【答案與解析】I.單項(xiàng)選擇。1. C。 這里是表示客觀需要，意為“不得不。2. D。 Will you please do這是一個固定句型，表示懇求，意為“請你做某事好嗎？。3. A。 考察祈使句的反義疑問句，附加問句常用will you，表示懇求。4. B。 由yesterday可知用couldnt而不用cant。5. A。 這里cant表示對如今情況的否認(rèn)推測，意為“不可能是。6. D。此題考察情態(tài)動詞的用法。由答句“Yes，I can可知答案為D項(xiàng)。7.B。 句意：我可以穿我喜歡的任何一件衣服去上學(xué)嗎?不，你不能。你必須穿校服。此題考察情態(tài)動詞的用法。might可能，也許；must必須；will將要；would意愿。根據(jù)句意說話者要表達(dá)命令的語氣，應(yīng)選B項(xiàng)。8. C。 句意：當(dāng)進(jìn)入世博園時，每個人必須通過安檢。此題考察情態(tài)動詞。can能，可能；may可以；must必須；ought應(yīng)該。根據(jù)常識及實(shí)際情況，進(jìn)人世博園必須安檢。應(yīng)選C。9. C。 句意：我如今必須清掃房間嗎?不必，你可以明天清掃。此題考察情