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* He dares to accuse me of dishonesty. 他竟敢說(shuō)我不老實(shí)。 * They dared not move. 他們不敢動(dòng)。如:* The doctor told me I was in need of a good rest. 醫(yī)生說(shuō)我需要好好休息。 * Does she need to go there?她需要去那里嗎? Yes, she does. 是的,她需要。(注:如need作實(shí)義動(dòng)詞,句子主語(yǔ)為物,need后接動(dòng)詞時(shí),動(dòng)詞要用為ing形式或“to be +Ved(過去分詞)。/不,不必。 No, you needn’t. 不,你不需要。注意有時(shí)高考也會(huì)對(duì)這種語(yǔ)氣上的差異命題,如下面這道高考題:* “When can I e for the photos? I need them tomorrow afternoon.” “They ________ be ready by 12:00.”A. can B. should C. might D. need在四個(gè)選項(xiàng)中,首先可排除A和D,因?yàn)樗鼈兺ǔ2挥每隙ň渲?;而B和C均可用于肯定句表示推測(cè),但根據(jù)句意:顧客下午要照片,此時(shí)店主顯然應(yīng)用語(yǔ)氣較肯定的should,而不宜用語(yǔ)氣很不肯定的 might,否則顧客是不會(huì)滿意的。如:* She can’t be in the office now. 她現(xiàn)在不可能在辦公室。can用于肯定句時(shí)表示客觀上的可能。其否定形式是 can’t (不可能)。(注:表示將來(lái)的“必須”,常 用have to 即will /shall have to ,表示過去的“必須”常用 have to 的過去形式had to)例如: * I had to leave early this morning because I had a parentteacher association (交際, 交往)to attend . * Doctor told me I must burn my fat . * We will have to do it again . * I had to leave at six yesterday . * have to它通常是表示客觀上的必須,have to 在英國(guó)口語(yǔ)中常 用have got to表示,有人稱、數(shù)、時(shí)態(tài)的變化,而must 只有一種形式。 注意:must開頭的一般疑問句的回答: * Must I live here ? Yes ,you must .(肯定) No , you don’t have to .或 No ,you needn’t .(否定) 注意:must主要表示現(xiàn)在或?qū)?lái)的必須,但有時(shí)(如在間接引語(yǔ)中)也可表過去(=had to),。例如: * It may/ might be true.(現(xiàn)在的可能) * He may not / might not live near the theater.(現(xiàn)在的可能) * He may / might leave tomorrow.(將來(lái)的可能) * He may not / might not leave next week. * Where can he be? He may be in the office.注意:may not/ might not表示推測(cè)時(shí),用于否定句,表示(無(wú)把握的)否定推 測(cè),意為“可能不/或許不”。例如: * You may keep the books for ten days . * Students may not stay out after midnight .(注意:讀may not 時(shí)重音要放在not上) * May /Might I have a few words with you ? (注意:表示征求許可時(shí)的回答,肯定可用:* Yes, you can /may.*Yes, please .否定可用:* No, you mustn’t. * Please don’t.* No, you may not.)