【正文】 ht to 應(yīng)該。)7)dare 敢 ； 用于否定句、疑問句 和條件狀語從句。我已經(jīng)告訴他了。t show your passport at the entrance unless the guard asks you for 。6)need 需要 ； 一般用于疑問句和否定句。5）will(would)愿意（表示意愿，愿望）；慣于、總是（表示習(xí)慣性、經(jīng)常性）；必須（表示命令）例如： We will fight on until the end of the enemy.(我們一定要戰(zhàn)斗到敵人的末日。不必。3）must 必須。t(不許）例如：May I e into the room to see Mr Green ?No, you can39。能夠(可能), 這時could 不是can 的過去時, 它表示比can 的可能性更小或語氣更委婉?！狪t had to be Tom．／It must have been Tom．He39。had＋to be可表示說話人對過去可能發(fā)生的事認(rèn)為是肯定無疑的：There was a knock on the door．It had to be Tom．有人敲門。）但He must have e by taxi（他一定是乘出租汽車來的）意指他沒有其他選擇，不存在用其他辦法進(jìn)行這種旅行的可能。如果急救車停在他門口，鄰居們會說Bill must be ill（比爾一定得了病了）。t answered my letter．—He may／might be ill． —我不知道湯姆為什么沒給我回信。（也許這是那把鑰匙。一定是湯姆弄的。或must+進(jìn)行式：He must be living here．他一定是住在這里。d be glad if you could find me another Wu :(4).Li Gang : Yes, but one with bigger Wu :(5).Li Gang : Oh, Oliver one is the words are much you very Wu : You39。s a place of great interest in ___________(build)thousands of years 、選擇最佳答語補(bǔ)全對話Miss Wu : Can I help you? Li Gang : Yes, I39。s ___________(take)care of his aunt39。t be 39。need 。t, where is your father?I39。t 39。例如:Must we hand in our exercises today?No,you needn39。t,而需要用needn39。有時兩者都可以用,意思差別不大。例如: He may know the I may go :,表示現(xiàn)在時間的動作,但語氣較為婉轉(zhuǎn)客氣或更加不肯定。例如Could I speak to , please?Could you help us carry this box, please?, might也是may的過去式,其用法如下: :“允許”或“請求”。例如: Can you speak English? What can I do for you? can用在否定句和疑問句中時有時表示說話人的“猜測”或 “不肯定”。t be a must belong to : 語法知識:表示推測的情態(tài)動詞。自學(xué)質(zhì)疑: [重點(diǎn)詞組] to band of more 不再 up用光、用完 music古典音樂 from 逃離 careful of a joke on sb [交際用語] 1 It must be Carla39。通過學(xué)習(xí),感受語言的魅力。t find anything person can39。,或根據(jù)客觀條件能做某種動作的“能力”。t skate when she was five years old.(能力)At that time we thought the story could be true.(可能性)could用來提問,是有禮貌的請求 Could..., please? 語氣較為婉轉(zhuǎn)。,認(rèn)為某一事情“或許”或“可能”發(fā)生。另外have to能用于更多時態(tài),比較下面的句子:We had to be there at 。)This must be your must be a ,如果是否定不能用mustn39。t是“一定不要”的意思。t not 39。t not 39。may 。!Her name is on the book be be 39。t Jim here?He39。ll go fishing if it__________(not rain).(3)Linda_____________(make)a lot of friends since she came here last autumn.(4)Did Jack finish__________(clean)the house this morning?Yes, he did.(5)Have you heard of the Great Wall, ?Yes, I 39。t the was the are too small for Wu :(3).What can I do for you then?Li Gang : Well, I39。t it interesting? ? But I know you are good at you enjoy the book? , they are really 、must表示推斷現(xiàn)在時 must+現(xiàn)在式：He must live here．他一定是住在這里。注意must不能用于表示否定的推斷，一般也不用于疑問式，除非是對含有must的推斷句提問： —There is a lot of noise from upstairs．It must be Tom． —Why must it be Tom？Other people use that flat． —樓上喧鬧的聲音很大?？赡苓x出一把鑰匙說： This may／might be the key． 可能就是這一把鑰匙。）（b）—I wonder why Tom hasn39。）但假設(shè)比爾從來沒有人來訪問他。（但也存在別的可能：他可能是乘出租汽車或公共汽車來的?！且欢ㄊ且恢簧n鷺。）had＋to be也可用來代替 must+完成式：—I wonder who took the money．—我不知道誰把這錢拿去了。但為了避免混淆，建議學(xué)生們還是盡量用must的各種形式情態(tài)動詞情態(tài)動詞是表示情態(tài)意義的動詞, 它表示說話人的語氣和情態(tài),它不能單獨(dú)作謂語,必須與 實(shí)義動詞一起構(gòu)成謂語,: He can swim in the can swim in the cane swim in the : can(could), may(might), must , shall(should),will(would), need , dare , ought to 下面分別介紹這些情態(tài)動詞的用法.(一)情態(tài)動詞的基本用法1)can(could)表示能力 , 這時could 為can 的過去時。t（不該）或mustn39。它需要很好地休息。t , 如：Must I start at once ? 我必須立即開始嗎？No , you needn39。Shall he e to see you ? 它必須來看你嗎？You shall get the answer right this 。He would sit for hours ,deeply 。如 ：You needn39。ve told him