【正文】 比 will 更婉轉(zhuǎn) ,客氣 。 You ought to read these books if you want to know how to repair the motorcar. 如果你想知道如何修理汽車 ,你應(yīng)該讀這些書。 (說話人認(rèn)為必須現(xiàn)在干 ) I have to go now. 我得走了。 may 否定式為 may not, might 是 may 的過去式 ， 有兩種用法 ，一種表示過去式 ， 一種表示虛擬語氣 ， 使語氣更加委婉 、 客氣或?qū)赡苄缘膽岩?。 個別情態(tài)動詞有現(xiàn)在式和過去式兩種形式 ， 過去式可以用來表達(dá)更加客氣 、 委婉的語氣 ， 時態(tài)性不強 ， 可用于過去 ， 現(xiàn)在或?qū)?。 He could be here soon. 他很快就來 。 He told me he might be here on time. 他說他能按時間來 。 (客觀條件必須現(xiàn)在走 ) You must be here on time next time. 你下次一定要按時來 。 You ought to bring the child here. 你應(yīng)該把孩子帶來。 It39。t done. A. not to be punished B. to not be punished C. to not punished D. not be punished 11.May I pick a flower in the garden? . A. No, you needn39。t need to C. needs not to D. needs not what you have done. You have been careful. A. should B. can C. must D. may did not go to the party yesterday, or I him. A. would see B. could meet C. might have seen D. might see 20. — Let39。t B. can, mustn39。t B. Yes, I will C. Yes, thank you D. No, we39。t D. No, you won39。 You should hand in the exercise book. 你應(yīng)該交作業(yè)本兒了 。指過去動作 ,表示一件事情該做而未做。 4. need “需要 ” ， 多用在否定式或疑問句中 . Need I attend the meeting tomorrow? 我需要明天參加會議嗎 ? You need not hand in the paper this week. 這一周你不必交論文 。 3. must “必須；應(yīng)該；一定；準(zhǔn)是 ” ， 表示說話人認(rèn)為有必要做某事 ， 命令 、 要求別人做某事以及對事物的推測 。t carry the heavy box. 我們搬不動那箱子 。 He must have been away. 他一定走了 。 May I e in? 我可以進(jìn)來嗎 ? May I use your dictionary? 我可以用你的詞典嗎 ? You may put on more clothes. 你可以多穿點衣服 。（ 2） must 和 have to 的區(qū)別 : must 表示說話人的主觀思想 , have to “不得不 ,必須”，表示客觀需要、客觀條件只能如此。t dare to tell the teacher what happened that day. 他不敢告訴老師那天發(fā)生的事 。s the last time. 我再不會做那件事情了 ,這是最后一次 。t have hurried B. needn39。t have to D. mustn39。t B. Can, may C. Must, can39。t C. may not D. mustn39。t see her in the meetingroom this morning. She at the meeting. A. mustn39。t B. you might not C. you needn39。表示一件不該做的事情卻做了。 Do you need a dictionary? 你需要詞典嗎 ? She needs a necklace. 她需要一條項鏈 。你不能老是工作 。t help you. 對不起，我?guī)筒簧夏恪? May I have your name? 我能知道你的名字嗎 ？ Shall we begin now? 我們現(xiàn)在就開始嗎 ？ You must obey the school rules. 你必須遵守校規(guī) 。 With the teacher?s help, I shall be able to speak English correctly. 有老師的幫助 , 我將能準(zhǔn)確地講英語 。 他一定把這件事情告訴我父母親了。 The little girl dare not speak in public. 小女孩不敢在公眾面前說話 。ll do my best to catch up with them. 我要盡全力趕上他們 。t have attended B. cannot have attended C. needn39。t rain. A. shouldn39。t, should 26. “ Can you imagine how about it?” “No, I can39。t, may