精选优质文档-倾情为你奉上情态动词的用法要点一 can和could情态动词用法例句can/could表示能力1“I dont think Mike can type.” “Yes, he can.”2I can speak fluent English now , but I couldnt 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may,might。1 As a human being, anyone can make a mistake.2 I may stay at home this weekend.(实际可能性)3 Peter might come to join us.(实际可能性) 表示请求和允许。1 Can we turn the air conditioner on?否定句中表推测“不可能”1He cant b