滬教牛津版九年級(jí)上Unit1Wisemeninhistory知識(shí)點(diǎn)歸納

1、 Unit 1 Wise men in history(1) 第一課 基礎(chǔ)知識(shí)點(diǎn)一、 必記單詞golden adj. 金的；金色的 Olympics n. pl.奧運(yùn)會(huì)agreement n. 同意；應(yīng)允 pot n. 罐doubt v. 不能肯定；對(duì)沒(méi)把握 real adj. 真的；正宗的truth n. 真相；實(shí)情 seem v. 好像；似乎solve v. 解決；處理 fill v. 裝滿；注滿bowl n. 碗；盆 brave adj. 勇敢的；無(wú)畏的metal n. 金屬 certain adj. 確定的；肯定的prison n. 監(jiān)獄；牢獄 hit v. (hit，hit)(用手或

2、器具)擊；打correct adj. 準(zhǔn)確無(wú)誤的；正確的 mistake n. 錯(cuò)誤less det.（與不可數(shù)名詞連用）較少的；更少的二、 常考短語(yǔ)in ancient Greece 在古希臘(be) happy with （對(duì)某人或事物）滿意的 = be pleased/satisfied with fillwith  用把裝滿 think about = consider 考慮；思考 be filled with=be full of 充滿；裝滿 run over 溢出 go straight to “直奔，直接去” each other 互相；彼此ask sb fo

3、r sth 向某人要某物 onethe other 一個(gè)另一個(gè)send sb to prison 把某人關(guān)進(jìn)監(jiān)獄 tell the truth 說(shuō)實(shí)話make sure  確保；設(shè)法保證 something else 別的東西 bothand 和都 pay attention to (to為介詞）leave sb alone 不打擾某人；不驚動(dòng)某人 （leave me alone）notany longer=no longer send sth to sb-=send sb.sth 把某物寄/送給某人be made of +看得見(jiàn)的原材料 由制成 cut up 切割開(kāi)；切碎be ma

4、de from +看不見(jiàn)的原材料 由制成 takeoff 領(lǐng)走；帶走；使離開(kāi)be made by + sb. 被某人制成 at the beginning of 在的開(kāi)頭三、常用句型：1.asas one can 盡可能，相當(dāng)于asas possible2.hit sb. in/on +the +身體部位，打某人的某個(gè)部位（身體部位較硬或凸起，用on；部位較軟或下凹，用in） 3.one of the+adj最高級(jí)+可數(shù)名詞復(fù)數(shù) 最的之一4.try to do sth.試圖做某事，盡力做某事 5.it is believed that 6. be （not）allowed to do sth

5、（不）被允許做某事7.getto do sth 讓/使做某事 8.start to do sth 開(kāi)始做某事四、辨析1.辨析：win與beatWin（won,won）及物動(dòng)詞賓語(yǔ)表示比賽、獎(jiǎng)品、戰(zhàn)爭(zhēng)、榮譽(yù)等名詞He won the argument.不及物動(dòng)詞意為“獲勝”Who won?he won.Beat(beat,beaten)及物動(dòng)詞意為“擊敗”賓語(yǔ)為比賽或競(jìng)爭(zhēng)對(duì)象China beat the United States by two to one.不及物動(dòng)詞意為“（風(fēng)雨）等拍打；（心臟）跳動(dòng)”I felt my heart beating faster.2. 辨析：else與othe

6、relse副詞用于不定代詞（anything,something,nothing等）、疑問(wèn)詞（what，who,where）后other形容詞或代詞做形容詞時(shí)，放在名詞前作定語(yǔ)；作代詞時(shí)，常與定冠詞the連用，構(gòu)成onethe other，表示（兩者中）一個(gè)另外一個(gè)Eg:who else will go with us? Where are the other students? I have two pens,one is red,and the other is blue.3. 辨析：discover與invent 這兩個(gè)詞都用作及物動(dòng)詞，都指人們首先見(jiàn)到新鮮事物，但含義不同。discov

7、er發(fā)現(xiàn)指發(fā)現(xiàn)或偶然發(fā)現(xiàn)原本存在的，但一直未被認(rèn)識(shí)或不為人知的東西invent發(fā)明指創(chuàng)造發(fā)明出新的、原來(lái)并不存在的東西 Recently they discovered gold. 最近他們發(fā)現(xiàn)了黃金。 Edison invented the electric light bulb. 愛(ài)迪生發(fā)明了電燈泡。4.辨析：at first與first of allat first起初；當(dāng)初相當(dāng)于at the beginning，與后來(lái)發(fā)生的事相對(duì)照，其反義詞組為at last（最后，終于）first of all首先，第一相當(dāng)于first，表示順序，是時(shí)間上或一系列行動(dòng)的開(kāi)始，后面往往接next，th

8、en等 At first I didn't want to go,but I soon changed my mind. 起初我不想去，可是不久我改變了主意。 First of all,open the windows,then turn off the gas,and if necessary,call an ambulance. 首先，打開(kāi)窗子，然后關(guān)掉煤氣，如果需要，叫一輛救護(hù)車(chē)。5. 辨析：however與but二者都有“然而，但是”的意思，其區(qū)別如下：however然而；不過(guò)比較正式，可以放在分句之首、之中或之尾；其前面或后面要用逗號(hào)隔開(kāi)，如在句中，其前后都要加逗號(hào)。but但

9、是轉(zhuǎn)折的意味比however要強(qiáng)，從語(yǔ)序上看，but總是置于引出的分句之首。 It's raining hard,however,they're still working in the field. 雨下得很大，然而他們?nèi)匀辉诘乩锔苫睢?I'd like to go swimming with you,but I have to tidy the garden now. 我很想和你一起去游泳，但是我現(xiàn)在必須整理花園。6.辨析：real與truereal強(qiáng)調(diào)客觀存在，并非想象的或虛構(gòu)的，即某物外表與實(shí)質(zhì)之間有一致性Christmas Father isn't a

10、 real person.圣誕老人不是真實(shí)的人物。true強(qiáng)調(diào)事實(shí)與實(shí)際情況相符，并非杜撰、捏造的，符合一定標(biāo)準(zhǔn)、一定模式Is it true that he is dead? 他死了，是真的嗎？7.辨析：be made of與 be made frombe made of看得出原材料The table is made of wood. 這張桌子是由木頭做成的be made from看不出原材料The wine is made from grain. 這酒是用糧食釀造的。 【中考鏈接】 Books are made paper while paper is mainly made_ wood.

11、 A. of;of B. from;from C. of;from D. from;of8. 辨析：notany longer/no longer 與 not any more/no more notany longer/no longer:多指時(shí)間上不再延續(xù)，與之搭配的詞多為延續(xù)性動(dòng)詞。not any more/no more 側(cè)重程度或在數(shù)量上不再增加I dont want to stay here any more. The poor boy wont come any more./the poor boy will no more come.9. 辨析：see sb doing sth

12、與see sb do sthsee sb doing sth看到某人正在做某事I saw her cross the road.(穿過(guò)了馬路）see sb do sth看到某人做了某事，指看到動(dòng)作發(fā)生的全過(guò)程或看到動(dòng)作經(jīng)常發(fā)生I saw her crossing the road(正在過(guò)馬路）與此相同的詞（組）：watch,hear,notice,observe,look at,listen to10.辨析：the next day與next day the next day第二天，常與一般過(guò)去式連用The next day,all the books were sold out.next d

13、ay明天，常與一般將來(lái)時(shí)連用Next day,I will go shopping with him.11.辨析：dress，wear,put on,have on 與indress給（某人）穿衣服表動(dòng)作后接sb./oneself作賓語(yǔ)she dressed himself quickly.wear穿著表狀態(tài)后接衣服、首飾、鞋帽等名詞we wear uniforms at school.put on穿上表動(dòng)作后接衣服,鞋帽等名詞please put on your hat.have on穿著表狀態(tài)接衣服類(lèi)名詞，賓語(yǔ)是代詞時(shí)，放中間，不用進(jìn)行時(shí)I have on a pair of jeans

14、today.in穿著表狀態(tài)后接表顏色或衣服的名詞hes always in green shoes.助記：穿戴動(dòng)作put on，狀態(tài)wear已穿上;dress接人作賓語(yǔ),in 后顏色或衣裳12. 辨析：used to do sth,be used to do sth,與be used to doing sthUsed to do sth.過(guò)去常常做某事I used to be afraid of the dark.Be used to do sth被用來(lái)做某事The room is used to have a meetingbe /get used to doing sth習(xí)慣于做某事You

15、 will soon be/get used to living in the city.13. 辨析：through over acrossThrough穿過(guò)；通過(guò)指從空間內(nèi)部穿過(guò)The train passed through a tunnel.over越過(guò)物體上方跨過(guò)，無(wú)接觸面He jumped over the wall.across穿過(guò)；橫過(guò)物體表面的一邊到另一邊We went across the road.14. 辨析：find find out look forfind強(qiáng)調(diào)“是否找到”這一結(jié)果Have you found your bjike?Find out（找出，查明）經(jīng)過(guò)

16、一番努力找到事情的真相l(xiāng)et's find out when the plane will take offLook for后接尋找的對(duì)象，強(qiáng)調(diào)尋找這一過(guò)程The girl is looking for her book. 解析：1. At first, he was very happy with it. be happy with sb./sth 意為“對(duì)某人或事物滿意的”，=be pleased/satisfied with sb./sth His teacher is happy with him. 他的老師對(duì)他很滿意。 She is happy with what I'

17、;ve done. 她對(duì)我做的很滿意。2. Later, however, he began to doubt that it was a real golden crown. (1) begin to do sth.意為“開(kāi)始做某事”，同義詞組為begin doing sth.。 When can I begin to work? 我什么時(shí)候能開(kāi)始工作呢？ When I got there,the singer had already begun singing. 當(dāng)我到那兒時(shí)，歌手已經(jīng)開(kāi)始唱歌了。 (2) doubt此處用作及物動(dòng)詞，意為“不能肯定，對(duì)無(wú)把握”。 He doubts the

18、 truth of the news. 他懷疑那件新聞的真實(shí)性。 I don't doubt that she'll come. 她一定來(lái)，我不懷疑。 【拓展】doubt用作不及物動(dòng)詞，意為“懷疑”，其后常接of,about。 She doubts about everything. 她對(duì)一切都懷疑。 He doubts of his success. 他懷疑他能否成功。 doubt后接賓語(yǔ)從句時(shí)，名詞從句用if/whether引導(dǎo)，名詞從句也可用that引導(dǎo)。I doubt if/whether she will keep her word. 我懷疑她是否會(huì)遵守諾言。I do

19、n't doubt that we will win. 我們會(huì)獲勝是沒(méi)有疑問(wèn)的做名詞，意為“懷疑”，固定短語(yǔ)：be in doubt “不肯定，不確定”No doubt 無(wú)疑，很可能” without/beyond doubt 毫無(wú)疑問(wèn)，的確3. “Is it made completely of gold?”he wondered. wonder 想知道，相當(dāng)于want to know后接疑問(wèn)詞引導(dǎo)的賓語(yǔ)從句，從句使用陳述語(yǔ)序。 I wonder who she is.后接if/whether 引導(dǎo)的賓語(yǔ)從句，表示委婉的請(qǐng)求或疑問(wèn)。 I wonder if you would min

20、d giving me a hand.后接“疑問(wèn)詞+不定式”結(jié)構(gòu) I am just wondering how to do it.拓展：wonder 做動(dòng)詞，還可意為“感到驚異”，可與at/about連用 I dont wonder at his words.Wonder 作為可數(shù)名詞，意為“奇跡；奇觀”4. “This problem seems difficult to solve. What should I do?”thought Archimedes. （1）seem用作連系動(dòng)詞，意為“似乎，好像”，后常接形容詞作表語(yǔ)，可以和seem to be和It seems/seemed t

21、hat相互轉(zhuǎn)換。 He seems very angry. = He seems to be very angry. 他好像非常生氣。 用作實(shí)意動(dòng)詞，可接to do sth He seems to sing. 他似乎在唱歌。（2）solve vt solution n the solution(s) to ,意為的解決辦法5. Archimedes was still thinking about this problem as he filled his bath with water. fillwith  意為“用把裝滿”，其被動(dòng)語(yǔ)態(tài)形式為be filled with，相當(dāng)于 b

22、e full of6. weigh “稱(chēng)重量；重”其名詞形式為 weight Please weigh the bananas for me. / she weighs 60 kilos./its about 76kilos in weight. Some gold of the same weight the sameas 與相同的（） I bought the same car as yours./ this bowl is the same as that one.7. so I'm certain that it's not completely made of gol

23、d. certain用作形容詞，意為“確定的，肯定的”。 常用結(jié)構(gòu)： be certain+從句 一定I'm not certain where he lives. 我不敢肯定他住在哪兒。 be certain to do sth. 肯定要做某事He is certain to finish the task on time. 他肯定會(huì)按時(shí)完成任務(wù)。 be certain of/about sth. 對(duì)確信，有把握We're certain of success. 我們有把握成功。 be certain of doing sth. 有把握做某事He is certain of

24、winning the match. 他確信能贏這場(chǎng)比賽。8. send sb to prison/take sb to prison“把關(guān)進(jìn)監(jiān)獄” in prison 坐牢，服刑9. go ahead 開(kāi)始吧 其主要用法表示同意或允許，意為“說(shuō)吧，做吧，進(jìn)行吧”繼續(xù)吧 Go ahead,we are all listening.表示請(qǐng)對(duì)方先走或先做某事，意為“你先走一步；你先請(qǐng)”You go ahead and tell him that were coming soon.10. What's wrong with it? What's wrong (with sb. /st

25、h)?是用來(lái)詢問(wèn)“某人發(fā)生了什么事情或某物出了什么 毛病/故障”等最常用的句型之一。其同義句型為：What's the matte/trouble with.? What's wrong with you? 你怎么了（出什么事了）?11. That's why I'm angry. That's why. 意為“那就是的原因”，why引導(dǎo)的是表語(yǔ)從句，用陳述語(yǔ)序。 表語(yǔ)從句是在句中作表語(yǔ)的從句，常位于連系動(dòng)詞be,look等的后面。 The alarm clock didn't go off. That's why he was late

26、 for school12. be allowed to do sth 被允許做某事allow sb to do sth 允許某人做某事 allow doing sth 允許做某事He allows smoking here.他允許在這里抽煙 our teacher allowed us to go out for a walk.13. However,Helen,a brave woman,wanted to watch her son run. watch sb. do sth 意為“看某人做了某事或經(jīng)常做某事”，表示看見(jiàn)動(dòng)作發(fā)生、進(jìn)行 的全過(guò)程。其中do為省略to的不定式，作賓語(yǔ)補(bǔ)足語(yǔ)。

27、 I watched her go out of the room just now. 剛才我看到她從房間里出來(lái)了。注意：Watch sb. doing sth. 意為“看某人正在做某事”，表示看見(jiàn)動(dòng)作正在進(jìn)行。其中doing為現(xiàn)在分詞，作賓語(yǔ)補(bǔ)足語(yǔ)。 He stopped to watch us working. 他停下來(lái)看我們干活。 【拓展】和watch用法相同的動(dòng)詞（組）還有see, hear, make, feel, notice, look at 等。 Did you hear Jack call you? 你聽(tīng)見(jiàn)杰克叫你了嗎？（動(dòng)作結(jié)束）We often hear the girl

28、 sing English songs. 我們經(jīng)常挺大了那個(gè)女孩唱英文歌曲。（動(dòng)作經(jīng)常發(fā)生） I heard the song wind blowing when it was raining heavily. 下大雨的時(shí)候我聽(tīng)見(jiàn)狂風(fēng)呼嘯。（動(dòng)作正在進(jìn)行） 14. When you have written something, you should check your work to make sure the spelling, grammar and punctuation are all correct. (1) make sure意為“確保，設(shè)法保證”，后可接賓語(yǔ)從句或of短語(yǔ)。同

29、義短語(yǔ)：be sure/be certain Make sure that they know nothing about our plan. 絕對(duì)不能讓他們知道我們的計(jì)劃。 They scored another goal and make sure of victory. 他們又進(jìn)了一個(gè)球，這就贏定了。 (2) correct 此處用作形容詞(=right)，意為“正確的”，其副詞為correctly(正確地)。 【拓展】correct用作動(dòng)詞，意為“改正；糾正” correct the mistakes 改正錯(cuò)誤12. write what kind of mistake it is m

30、istake 用作可數(shù)名詞，意為“錯(cuò)誤”，常用短語(yǔ)：make a mistake /mistakes 犯錯(cuò)； by mistake 錯(cuò)誤地 You've made several grammatical mistakes in the composition. I got on the wrong bus by mistake. 我搭錯(cuò)了公共汽車(chē)。 【拓展】mistake（mistook,mistaken）還可用作動(dòng)詞，意為“弄錯(cuò)，搞錯(cuò)”。常用短語(yǔ)：mistake for “把誤認(rèn)為” She didn't speak very clearly, so I mistook wh

31、at she said. 她說(shuō)話不是很清楚，所以我誤解了她的意思。 He is often mistaken for a famous actor. / we often mistake him for a famous actor.他常常被誤認(rèn)為是個(gè)名演員。13. However, no one could find a scale large enough. enough此處用作副詞，意為“足夠地”，修飾形容詞或副詞時(shí)，要放在其后。 He runs quickly enough. 他跑得足夠快。 It's warm enough in the room. 屋子里夠暖和了。 adv/

32、adj+enough+（for+名詞/代詞+）to do sth.，意為“足夠做某事”。可與“sothat+肯定句”進(jìn)行同義句轉(zhuǎn)換。The box is light enough for the boy to carry. 這個(gè)箱子足夠輕，這個(gè)男孩能搬動(dòng)?！皀ot+adj/adv+enough to so sth”不夠不能做某事，可與“tooto do sth”進(jìn)行同義句轉(zhuǎn)換 the boy is not old enough to look after himself=the boy is too young to look after himself. enough作形容詞修飾名詞時(shí)，可放

33、在其前，也可放在其后。 We have enough money.(=We have money enough.) 我們有足夠的錢(qián)。注意 14. be taken off 是takeoff的被動(dòng)語(yǔ)態(tài)，takeoff意為“領(lǐng)走；帶走；使離開(kāi)”15. go down 的主要用法 （船等）下沉，沉沒(méi) their ship went down during an accident. （日，月）落下 the sun has gone down. 沿著走 just go straight down that street.16. own vt 擁有 adj.自己的 my own pen owner 物主

34、the owner of 的主人17. Its believed that 人們相信It is said that 據(jù)說(shuō) it is reported that 據(jù)報(bào)道It is known that 眾所周知 it is supposed /thought that 人們認(rèn)為 第二課 語(yǔ)法：反意疑問(wèn)句及句子的類(lèi)型1、 反意疑問(wèn)句： 1、含義：反意疑問(wèn)句又叫特殊疑問(wèn)句，它是在陳述句之后附加一個(gè)簡(jiǎn)短的問(wèn)句，對(duì)陳述句所敘述的事實(shí)提出疑問(wèn)或征求意見(jiàn)。 2、構(gòu)成：由兩部分構(gòu)成，前一部分是一個(gè)陳述句，后一部分是一個(gè)簡(jiǎn)略的疑問(wèn)句。遵循“前肯后否，前否后肯”的原則。前后兩部分在人稱(chēng)、數(shù)、時(shí)態(tài)等方面必須保持一

35、致。附加疑問(wèn)部分通常由兩個(gè)詞組成，第一個(gè)詞是be動(dòng)詞、情態(tài)動(dòng)詞、或助動(dòng)詞，若是否定式，通常用上述詞與not的縮略形式；第二個(gè)詞是指代陳述部分主語(yǔ)的人稱(chēng)代詞主格。 3.答語(yǔ)：遵循一個(gè)原則，不管問(wèn)題的提法如何，只要事實(shí)是肯定的，就用“yes,肯定回答”；只要事實(shí)是否定的，就用“No,否定回答”。但在前否后肯的反意疑問(wèn)句中，其答語(yǔ)與漢語(yǔ)翻譯不同，Yes 要翻譯成“不”，No 要翻譯成“是”。 You will never forget him,will you? Yes,I will. 不，我會(huì) No,No I wont. 是的，我不會(huì)4.特殊用法：反意疑問(wèn)句的特殊用法 1）陳述部分為I am時(shí)，疑

36、問(wèn)部分用arent. 例：I am late, arent I ? I am a teacher, arent I ?2） 當(dāng)陳述部分的主語(yǔ)是everyone, someone, anyone, no one, nobody等不定代詞時(shí)，疑問(wèn)部分的主語(yǔ)可用he,也可用they. 例：No one wants to do it, doesnt he / dont they?3）當(dāng)陳述部分主語(yǔ)是something, everything, anything, nothing等表示物的不定代詞時(shí)，附加疑問(wèn)部分的主語(yǔ)要用it. 例：Everything will be all right, wont

37、it? Something must be done to end the strike mustnt it?4）當(dāng)陳述部分帶有seldom, hardly, never, few, little, nothing, nobody等否定詞時(shí)，疑問(wèn)部分宜用肯定式 例：She seldom goes to school late, does she?5）當(dāng)陳述部分中有否定前綴或后綴的否定詞時(shí)，疑問(wèn)部分仍用否定式 例：She dislikes her boyfriend, doesnt she? She is careless in writing, isnt she?6）當(dāng)陳述部分是一個(gè)祈使句時(shí)，

38、不管是肯定還是否定，附加疑問(wèn)部分一般用will you。當(dāng)陳述部分以Lets開(kāi)頭，疑問(wèn)部分用shall we?但以“Let us”開(kāi)頭的，附加疑問(wèn)部分常用will you? Lets have a cup of Chinese tea, shall we? Let us go to the supermarket, will you? 在肯定的祈使句后，還可以用wont you.7) 當(dāng)陳述部分的主語(yǔ)是指示代詞this，that或these，those時(shí)，附加疑問(wèn)部分的主語(yǔ)分別用it或they。 This is your book,isnt it?8）當(dāng)陳述部分是帶有賓語(yǔ)從句的主從結(jié)構(gòu)，疑問(wèn)部

39、分的助動(dòng)詞和主語(yǔ)應(yīng)與主句的主謂要一致，但當(dāng)句中部分是I think/I suppose/I believe等結(jié)構(gòu)時(shí)，疑問(wèn)部分助動(dòng)詞主語(yǔ)則與that從句中的主、謂保持一致例：They said that I was right, didnt they? I dont think you have done it, have you?9）當(dāng)陳述部分的主語(yǔ)是動(dòng)詞不定式或動(dòng)名詞時(shí)，附加疑問(wèn)詞部分的主語(yǔ)是it To work hard is important,isnt it?10）陳述部分為there be 結(jié)構(gòu)時(shí)，附加疑問(wèn)部分中仍用there Theres something wrong,isnt

40、there? 11）當(dāng)陳述部分帶有used to, 附加疑問(wèn)部分既可用usednt 或didnt的相應(yīng)形式 例：He usednt smoke, used he? He didnt use to smoke, did he? 12）當(dāng)陳述部分是had better,疑問(wèn)部分應(yīng)用had/hadnt ;若陳述部分為would like和would rather, 附加疑問(wèn)部分應(yīng)用wouldnt ? 例：Youd better take a bus to go there, hadnt you? Youd like some tea, wouldnt you?13）當(dāng)陳述部分是感嘆句，附加疑問(wèn)部分則

41、用否定式，且主語(yǔ)和感嘆句主語(yǔ)要一致 例：What a lovely day, isnt it? What a good man, isnt he? 14）有關(guān)have當(dāng)陳述部分的謂語(yǔ)是have/has表示“有”時(shí)，附加疑問(wèn)部分既可用have/has的相應(yīng)形式，也可用do/does的相應(yīng)形式 例：She has two sister, hasnt /doesnt she? 當(dāng)陳述部分的謂語(yǔ)has/has表示經(jīng)歷、遭受、得到、吃等其他含義時(shí)，疑問(wèn)部分只用do/does的適當(dāng)形式例：He often has breakfast at seven, doesnt he? 當(dāng)陳述部分的謂語(yǔ)動(dòng)詞包括hav

42、e to/had to時(shí)，疑問(wèn)部分通常用do/ does的不同形式例：She has to stay at home to look after her baby, doesnt she?15）當(dāng)陳述部分的謂語(yǔ)動(dòng)詞含有can, may, shall, will would, ought, be, do等助動(dòng)詞時(shí)，疑問(wèn)部分用相同的助動(dòng)詞 例：You can be there by 10 oclock, cant you? You ought to follow her advice, oughtnt/shouldnt you?16）must 的反義疑問(wèn)句：陳述部分有 must 的疑問(wèn)句，疑問(wèn)部分根據(jù)實(shí)際情況而定。Amust 表示“應(yīng)該”，其疑問(wèn)部分用 mustn't（不應(yīng)該），如：You must work hard next term, mustn't you ? 下學(xué)期你應(yīng)該努力學(xué)習(xí)，對(duì)嗎？Bmust 表示“必須”，其疑問(wèn)部分用 needn't（不必），如：They must finish the work today, neednt they? 他們今天