精选优质文档-倾情为你奉上情态动词情态动词是高考的重点考查项目,对学习情态动词的要求是:首先、了解情态动词各自的基本意义及用法,然后掌握情态动词表示推测的用法(其中重点是对表过去推测的用法)还要注意带有情态动词的反意疑问句的用法。情态动词的特征:1.本身有词义,但完全。因此不能独立作谓语,只能和动词原形一起构成谓语。2.后接动词不定式一律不带to 3.不随人称和数的变化。情态动词各自的基本意义及用法表一、can 与could用法对比表对比点can could1、表“能力”Can you lift this heavy box?I couldnt understand what he said at all.2、表“许可”You can use a different material instead.He said I could borrow his bike.3、“怀疑”No, no, it cant be true.What on earth can this mean?W