高考英语情态动词用法及解题技巧

高考英语情态动词用法及解题技巧  导语:情态动词是中学英语语法的重点,也是高考的热点。只用作情态动词的有:can/could,may/might,must,ought to,be able to;既

高考英语情态动词用法及解题技巧 导语:情态动词是中学英语语法的重点,也是高考的热点。只 用作情态动词的有:can/could,may/might,must,ought to,be able to;既可作情态动词又可作实义动词的有:need,dare;既可作 情态动词又为助动词的有:shall/should/w1ll/would。以下是为大 家精心的高考英语情态动词用法及解题技巧,欢送大家阅读参考! 1情态动词need的用法 1. need作情态动词,一般用于疑问句和否认句中,表示“需 要”、“必要”。当其用于现在时和将来时时,在宾语从句中可当 过去时用。肯定答复用must(或have to, ought to, should) 来表 达。否认式为need not /needn't表示“不必,不需要”。如: (1) You needn't show your passport at the entrance unless the guard asks you for it. (2) —Shall Itell Jack about it? —No, you needn't. I've told him already. 2. need作实义动词,意为“需要”、“要求”。如: (1) You don't need to leave so early. (2) He needs to try one more experiment. 2情态动词dare的用法 1. 情态动词,表示“敢”,后接动词原形,用于否认句、疑问 句和条件状语从句中。如: (1) We dare not refuse their request. (2) Dare you walk through the forest at night? 2. 当实义动词用时,可用于各种句型中。dare作实义动词用 在否认句和疑问句中时,其后接不定式有时可省去“to”。如:

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