中考网整理了关于2022年中考英语考点:主语+情态动词,希望对同学们有所帮助,仅供参考。 主语+情态动词 含有情态动词的句子,变否定句时, 只需在情态动词后加not. 【例】 I can dance. 否定句 I can not dance. 或 I can't dance. They can speak English. 否定句 They can not speak English. 或They can't speak English. 【注意】He must be on the playground. He can not be on the playground. 析:当must be用来表示推测,有“一定”的含义时, 否定式要用can not. You must say something at the mecting.否定句 You needn’t say anything at the mecting. 析:当“must+行为动词”用来表示“必须”的含义时,其否定式可用needn’t 或mustn't表示“不需要”,“不必”, 语气委婉,must not表示“禁止”,“千万别”语气生硬。 You may come in now. You mustn't come in now. 析:may作为情态动词表示“可以”时, 其否定式用must not,而不用may not. (责任编辑:admin) |