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That man___(不可能)be Mr. Zhang. He has gone to Beijing on business.182。但have/has to用于強(qiáng)調(diào)客觀需要,意為”必須,不得不“;must用于表示主觀意愿,意為”必須“ 。 Let’s go dancing tonigh.Sorry, I ___. I have to go to a meeting.答案:may/mustn’t/Shall/needn’t(don’t have to)/must/may/can’t(二)情態(tài)動(dòng)詞辨析can和be able to的區(qū)別can和be able to表示能力時(shí)用法同,can只用于一般現(xiàn)在時(shí)和一般過去時(shí)(could),其他時(shí)態(tài)要用be able ,表示過去某一特定情況下成功做到某事,用be able to.Jim couldn’t speak Chinese last year, but now he 。will用于第二人稱表詢問、請(qǐng)求,也可表達(dá)現(xiàn)在的“意愿”Will you pass me the book?你能把那本書遞給我嗎?We will do anything for you.我們?cè)敢鉃槟阕鋈魏问?。He needn’t do it.他不需要做那事。(3)must的用法情態(tài)動(dòng)詞意義及用法說(shuō)明例句must表“必須”I must go now.我現(xiàn)在必須走了。一、教學(xué)內(nèi)容:情態(tài)動(dòng)詞二、教學(xué)目標(biāo):掌握情態(tài)動(dòng)詞的基本用法掌握情態(tài)動(dòng)詞辨析三、教學(xué)重難點(diǎn):從整體上把握情態(tài)動(dòng)詞的語(yǔ)法和語(yǔ)義特征掌握每個(gè)情態(tài)動(dòng)詞在實(shí)際語(yǔ)境中的用法特點(diǎn)及功能四、教學(xué)過程(一)情態(tài)動(dòng)詞的基本用法情態(tài)動(dòng)詞的類型和特征類型例詞只作情態(tài)動(dòng)詞的有must/ can (could) /may (might)可作情態(tài)動(dòng)詞也可作實(shí)義動(dòng)詞的有n