She needs some help,__?用doesn't she而不是needn't she.怎么看 need是做實(shí)義動(dòng)詞還是情態(tài)動(dòng)詞?
She needs some help,__?用doesn't she而不是needn't she.怎么看 need是做實(shí)義動(dòng)詞還是情態(tài)動(dòng)詞?
英語人氣:130 ℃時(shí)間:2019-08-20 13:36:09
優(yōu)質(zhì)解答
這是反意疑問句,在句中need是實(shí)意動(dòng)詞,因?yàn)樗恿藄,反意疑問句遵循前肯后否的原則,因?yàn)榍懊媸强隙?所以后面要用否定.另外,need做情態(tài)動(dòng)詞沒有人稱和數(shù)的變化,但做實(shí)意動(dòng)詞時(shí)后要加to do,表示需要做某事,加doing時(shí),屬于主動(dòng)表被動(dòng),如my hair needs cut.我需要理發(fā)了.你是不是寫錯(cuò)了??應(yīng)該是my hair needs cutting吧??是的,應(yīng)該是my hair needs cutting.還一個(gè)問題,那實(shí)義動(dòng)詞用doesn't she?做情態(tài)動(dòng)詞時(shí)用needn't she?對(duì)伐?是的,陳述部分的謂語動(dòng)詞帶情態(tài)動(dòng)詞,附加疑問的動(dòng)詞形式:1 帶 have to 時(shí),附加疑問用 do 或 have的相應(yīng)形式 , 用 do 更常見。 You don’t have to go to school on Sundays , do you ? We have to work today , don’t we ? (haven’t we ?)2 帶 must時(shí)A表示“必須”,附加疑問部分用 mustn’t We must work hard , mustn’t we ?B 表示“有必要”時(shí),附加疑問部分用 needn’t.The teacher must show concern for each pupil , needn’t he ?C 表示“推測(cè)”時(shí),附加疑問部分要與陳述部分的謂語動(dòng)詞相呼應(yīng)。He must be a teacher, isn’t he ? Dmust + have + done 是對(duì)過去情況的推測(cè),當(dāng)陳述部分沒有明確的表示過去的時(shí)間狀語時(shí),附加疑問要用have的相應(yīng)形式;當(dāng)陳述部分有明確的過去時(shí)間狀語時(shí),附加疑問要用過去時(shí)。 You must have lived here for a long time , haven’t you ?You must have seen him yesterday , didn’t you ?E 當(dāng)陳述部分是 must not , 表示“一定不要” 、“禁止”時(shí),附加疑問除用must 外,還可以用may.I must not tell him , must I ? ( may I ?)3 帶 used to 時(shí),附加疑問用 usedn’t 或didn’t . 但口語中傾向于后者。There used to be an apple tree in the garden , didn’t there ? (usedn’t there ? )4 帶need 時(shí),附加疑問用 do 或 need ,應(yīng)該與陳述部分 need 用法相呼應(yīng)。I needn’t tell you the answer , need I ?You need to buy a better dictionary , don’t you ?5 帶ought to 時(shí),附加疑問用ought. , 但在美國英語中用shouldWe ought to help each other , oughtn’t we ? / shouldn’t we ?
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