情態(tài)動(dòng)詞canmaymustneed與練習(xí)題x0001

1、Hem ustbe a woikei; isnt he?（現(xiàn)在）他準(zhǔn)時(shí)個(gè)工人，是嗎？考點(diǎn)二：情態(tài)動(dòng)詞can的用法，表示某人能做某事。lean play 否定句：主語(yǔ) lean not fcan肯定句：主語(yǔ)+sn+動(dòng)詞原形+其他+動(dòng)詞+原其形他piano the piano +can +notfcanphyt) 1he般疑問(wèn)句：C an+主語(yǔ)+動(dòng)詞原形+其他？C an you phy 1he phno?特殊疑問(wèn)句：特殊疑問(wèn)詞 +sn+主語(yǔ)+動(dòng)詞原形+其他？W hat can you phy ? can play the piano青態(tài)動(dòng)詞 m ust; can, could, m ay, m 藝

2、ht衣推測(cè)的用法:情態(tài)動(dòng)詞中的 m ust can, couil, m ay, m ight都表推測(cè)。其中 must的可能性最大,can /couil 次之，m ay /m ight 最小。具體用法如下:1. m ust的用法（1）農(nóng)示推測(cè)“可能性”時(shí)，意思是“一定、準(zhǔn)是” 語(yǔ)氣較肯定，較有把握。Hem ustbe Am erra n.二 It is certah thathe is Am erfca n.他準(zhǔn)繪個(gè)美國(guó)人。 2） must表推測(cè)只能用于肯定句。如果要表示“一定不、肯定不”的總思時(shí)，應(yīng)用can如詢問(wèn)某種可能時(shí)，應(yīng)用can。Hem ustknow m y address他肯定知道我

3、的地址。（一定）H e cantknow m y address他肯定不知道我的地址。（一定不）C an he know m y address?他知道我的地址嗎？（詢問(wèn)可能性）3 ） must表示推測(cè)時(shí)，可以推測(cè)現(xiàn)在/正在發(fā)生的動(dòng)作/過(guò)去發(fā)生的動(dòng)作。Hem usthave a carnow（現(xiàn)在）他一定有輛小汽車(chē)。Hem ustbe doiig his exercises h the chssroom（正在進(jìn)行）他一定在教室里做練習(xí)。Hem usthave fiiished the woik（過(guò)去發(fā)生）他一定已完成了工作。注：m ust表 示推測(cè) 時(shí)很少用 于將來(lái)的 情況。 一般不用 Hem

4、 ustcom e tom onow. 可用It s certah /Im sure lhathe w illcom e tom orrow （4 ）在反意疑問(wèn)句中，當(dāng)附屬部分含有農(nóng)示推測(cè)意義的must時(shí).疑問(wèn)部分的助動(dòng)詞應(yīng)與 m ust后面的動(dòng)詞在非推測(cè)情況下的用法保持致。Itm usthave rahed hstnight; didntii?（過(guò)去昨晚一定下雨了，是不楚？You m usthave hamed English form any years, haventyou?（完成時(shí)）你一定學(xué)了好多年英語(yǔ)，處嗎？2. can /couil 的用法（1 ） can農(nóng)示推測(cè)“可能性“時(shí)，往往

5、用于否定句或疑問(wèn)句。Cant“一定不”，語(yǔ)氣很肯定。can在疑問(wèn)句中意思處“會(huì)、可能” 。H e cantbe athom e. = It is in possbh thathe is athom e.彳也定不在家。（2 ） can /tant后可接進(jìn)行時(shí)/完成時(shí)，衣示對(duì)現(xiàn)在發(fā)生的動(dòng)作或過(guò)去發(fā)生的動(dòng)作進(jìn)行推測(cè)。They cantbe readhg h The libiary.他們定不在圖書(shū)館讀書(shū)。H e canthave gone to Shanghaifer Isaw hin a m hute ago.他不可能去了上海，我剛才還看見(jiàn)他。Its so late. W here can she

6、have gone?天晚了，她可能去哪兒了呢？3 ）在反總疑問(wèn)句中，當(dāng)陳述部分禽有表示推測(cè)意義的cant時(shí)，疑問(wèn)部分的助動(dòng)詞應(yīng)與cant后面的動(dòng)詞在非推測(cè)情況下的用法保持一致H e cantbe a teacher; is he?他不楚教師，楚嗎？She canthave fiiished herhom ewoik, has she?她一定沒(méi)有完成家庭作業(yè)，是不是？（4 ） couU可用于表示某事有可能發(fā)生或可能是事實(shí)。D onteatit Iccould be poisonous不要吃它，可能有毒The plane could be delayed by fog.飛機(jī)可能會(huì)因?yàn)殪F晚點(diǎn)。（5

7、） couii還可以用于表示客氣、委婉、禮貌的請(qǐng)求語(yǔ)氣。Excuse m e, couH you tellm e tie way to The bus statbn? C ould you hefc m e?（6 ） couilnt示否定推測(cè)，農(nóng)示某事不可能真實(shí)，或由于特定事實(shí)或環(huán)境某事肯定不會(huì)發(fā)生。Itcouiin tposs$ be poison.這不可能是毒藥。注：有時(shí)與形容詞的比較級(jí)連用強(qiáng)調(diào)某人或某物不可能再更多地具有某種屬性。You couiintbe m ore wrong你貞是大錯(cuò)特錯(cuò)oIcouHntbe happfer我簡(jiǎn)直是幸福極了。3. m ay和m jght的用法（1）m

8、ay, might表示推測(cè)“可能性”時(shí)，盤(pán)思是“可能” 、“也許”，語(yǔ)氣沒(méi)有must肯 定。Hem ay /m 電htbe Am erran. = Itis possible lhathe is Am erran他可能是個(gè)美國(guó)人。注：might不表示過(guò)去時(shí)態(tài)，只是語(yǔ)氣上比may更委婉，表示的可能性更小。他也許不在家。（2 ） may,m電ht農(nóng)推測(cè)時(shí)，可以用于否定句，總思是“可能不.也許不”，但不用于疑問(wèn)句。H e m ay /m ightnotbe athom e.（3 ） may,m ight可以推測(cè)現(xiàn)在正在發(fā)生的動(dòng)作或過(guò)去發(fā)生的動(dòng)作。Hem ay /m ightbe shephg now

9、.現(xiàn)在）他可能正在I唾覺(jué)。The boy m ay /m 莒htnotbe waxchiig TV athom e 電視These students m ay /m ighthave seen the fih before. 看過(guò)這部電影。(4 ) m ay, m ight 還可以推測(cè)將來(lái)的情況。Ithhk w e should take rahcoatw ith us, itm ay（現(xiàn)在）這個(gè)男孩可能沒(méi)在家看（過(guò)去）這些學(xué)生以前可能我想我們應(yīng)該帶上雨衣， 可能要下雨了。她今天下午可能不來(lái)了。She m ightnotcom e This afternoon.Exercises: C om

10、plete !he sentences ushg 1 Ihave tried to callhin atthe office, bufdiere is no repk. He be athom e.2 They have boughta new car They have a btofm oney3 She is car-hg a Japanese new spaper She be C hhese.4. H e goes abroad a bt; H e have an in portant j)b5. She is a professoratie unEersity She be very

11、 clever 6 She is acting h a Shakespeare play tom orruw She be an actress.【隨堂練習(xí)】一.選擇填空1 Ithoughtyoulike som ehg td read So Ihave broughtyou som e book.A.oughtBm電htC couldD m ust2-Thatm an m ustbe Sarahs husband.To, hebe herhusband She is stiHshgleA. cant B.m ustntC m ay notD.oughtto3 Petercom e w ith

12、 us ton色ht buthe isntvery sureA.m ust B.m ay C can D w ill4-W hatitbe?Itbeam aUbox, fer it is m ovhg Itbe a carA. can;cant;m ustB can;can;m ustC can;m ustnt;m ustD m ust;m ustnt; can5. 一 Look, som eone is com hg G uessJack He、s arrays on tin e.A. who can itbeB who he m ayC who he can beD who it can

13、be6. 一 Isaw M arjT h the ibiaiy yesterdayYouher She is stiHabioadA. m ustntseeB canthave seenC m ustnthave seenD couldntsee7 D avid, youphy w ith 1he valiable bottle, youbreak itA. wont;cantB m ustnt;m ayC shouldnt; m ustD cant; shoukint8 Susan refiises to m any Jack now Sheherm ndA. m ustchangeB sh

14、ould have changedC m usthave changedD w ouH have changed9 Suecom e togetherw iih us tonight butshe isntvery sure yetA. m ustB m ay C need D w fl10. AuntM aigaretthe rah, otherwise she would have arri/ed here by now A. m usthave m issed B should have m issed1 W ho is The m an overthere? Is itM r. W u

15、?Ithin , butlam notquite sureA.m ay beB.m aybeC isD m ustbe2 Som e peoptfeelsizk when They read a book h a caroron a boatA m ustB shouldC m ayD need3 M ustlgo to m edralschooland be doctorfce you, Dad ?N o, you, son Youre fiee to m ake your own decisb n.A. can tB.m ustn tC shouHn tD don thave to考點(diǎn)：考

16、查情態(tài)動(dòng)詞辨析。4 Yoube hungry afterthe long wak H ej? yourselfto som e cakesA. should B m ustC need to D oughts5 C ouH you pleasethe piano so bud$? Yourbroier is havhg a restnow A. notto playB notphyC don tphy D to notplay6 Thatphk T- shirtw ilh P hg Ans prture on itbebng to M iss M a .Sheadm ires hin a bt

17、N o, itbe hers She hates phk co burA.m ust; can tB m ay, can t C can, m ustn t D m ust; m ustn t7 M ustlanswer it h English?No, you You can use ChheseA. shouHn tB can tC m ustn tD needn t8 w e go sw in m hg h X ishuanghu Lake today?0 h, no. It scold to sw in on such days Iw ilLcatch a coHA. W iH;vei

18、yBW HL; tooC Shall; vei3rD. Shall; too9 People who drhk w heto drire afterM ay D ay.A don talbwB.isn tabwedC .m ustn t a lbwD m ustn t bealbwed10 一 Iwas asked to attend the m eethg before eight0 h, you Im sorry fornottellhg you thatw e have changed The phn.A.m ustB cantC m ayD neednt11 Y ou have w o

19、iked fcra bng tin e .Yoube very tired A. m ustB can tC couldDm ustn t12 一C an Iask you a question?No, you Youto ask m e questions durhg exam s.A. can t m ustn tB can t aren tsupposedC can, arentsupposedDcan, donthave13 W hatyou do ifvouh G rade 7 now?A. couH, areB would, areC couU, wasD would, w ere

20、【答案】D14 ThisCDbebng to B ill Ithas his nam e on itA.m ustn tB m ightC can tD m ust【答案】D15 Y oudrire your car so fest Its dangeiDusA. wouHn tB shouHn tC couldntDm運(yùn)htn【答案】B16 halLwe m eetatthe station at8 a.m ?_ h fectw e.The trailuntiHOa.m A.m ustn t ;doesn t leave B.m ustn t ;havesCneedn tjwon t tav

21、e Dneedn tyi illta ve【答案】c17 M um ,I watch TV?N o. U n 上ss yourhom ew oikA. couH; fiiishesB can; w fl finishC m ay; is finishedD can; w ULbe fiiished【答案】C18 -Look! A m an is cuttng a Tree on the m oon.-Itbe true The teacher said lhere is no a iron The m oon A. can，tB m ay notC shouHn tD m ustn【答案】A1

22、9一you phase play tennis w Uh m e?Sorry IA. C ouH;cant B C oul d;couMnt C Can;don tD C an; couldn【答案】A20 broke the w hdow Y ouplay footballnearlhe w hdow A. shouldB shouHn tC had better【答案】B21一you sw in ?Yes , butl mnota good sw in m erA. C anB.M ayC.NeedD M ust【答案】A22 一 Is the worn an over there M i

23、ss W hire?Itbe her Shes gone to HangzhouA.m ustB can tC needn t D m ay【答案】B23 C an yourfind shg?A.YesjcanBYes, he canC .No,she can D .No,I can t【答案】B24 一W here is Kate?she is cleaning The classroom A. M ayB. M ay beC . M aybeD . C an【答案】c【解析】25 Shecom e to the party, butlam notquite sureD m ustA. wo

24、uHB shouldC m ht【答案】c26 Are you com hg to D avy s party, Kate ?I m notsure, Igo to the m ovfes hsteadA. wouHB shouldC m htD m ust【答案】C27 圧s the ibiary!So you_.A. m ustntB wontm ake any noise here.C needD m ay【答案】A【解析】28 Look at The sign! It says “NoSm okhg! Yousm oke here Itdangerous.A. m ustnB ough

25、tnottoC neednD donthave to【答案】A29 ay Iw atch TV now, M um ?衆(zhòng) o, you_A. dont;m ust 【答案】CYouB. dont;cantdo yourhom ework firstC : cant m ustD cant; can30 一There s som ebody atthe door. W hoN o, itbe hin Its jistseven oitbe? Is it the postm an ?s too ear.cbck IcA. m ay, canB.will, wonC m ay, m ustnD must;m ay not【答案】A31you shg an English song?Yes, lean.A. C an【答案】AB.MayD