学习好资料欢迎下载情态动词用法例句can/could 表示能力1.“I don’t think Mike can type. ”“Yes, he can.”2.I can speak fluent English now , but I couldn’t last year. 在肯定句中, 表示客观可能性, 并不涉及具体某事会发生,常用来说明人或事物的特征。 要表达具体某事实际发生的可能性时,不用 can,需用 could,may,might。 1.As a human being, anyone can make a mistake. 2.I ’m confident that a solution can be found. 3.He can be very forgetful sometimes. 4.I may stay at home this weekend.(实际可能性) 5.Peter might come to join us.(实际可能性 ) 6.It will be sunny in the daytime ,but it could rain tonight.(实际可能性 ) 表示请求和允许。表示请求,口语中常用could 代替 can,使语气更委婉。1.Can we turn the air conditioner on? 2.Any police officer can insist on seeing a driver’s license. 3.In soccer, you can’t touch the ball with your hands. 4.Could you have her call me back when she gets home, please? 学习好资料欢迎下载5.I wonder if I could just ask you to sign this. 表示对现在的动作或状态进行主观的猜测,主要用在否定句和疑问句中。 1.It can’t be easy caring for a man and a child who are not your own. 2.Can the man over there be our head master? 表示惊异、怀疑、不相信等态度,主要用在否定句、疑问句和感叹句中。1.Can this be an excuse for not giving them help? 2.This can’t be true. 3.How can you be so crazy. 特别说明:(1) could 用来表示请求时,语气委婉,主要用于疑问句,不能用于肯定句,答语应用can(即: could 不能用于现在时态的简略答语中) 。如:—— Could I use your dictionary? —— Yes, you can.(否定回答可用: No, I ’m afraid not.) (2) can和 be able to 辨析can(could)和 be able to 都可以表示能力,意思上没有区别。但can 只有现在式和过去式,而be able to则有更多的形式。如:I ’ve always wanted to able to speak fluent English. Those bags look rea...