情态动词(讲解版)(共8页).doc

精选优质文档-倾情为你奉上Modal Verbs情态动词定义：表示说话人的情绪、态度或语气的动词叫情态动词。情态动词语法特征1）情态动词不能单独作谓语，没有人称，数的变化，即情态动词第三人称单数不加-s。2）情态动词的否定式是在情态动词后面直接+not。3）情态动词的疑问式是把情态动词提到主语前。主要情态动词专心-专注-专业can, could（be able to）may, might must （have to） will, would shall, should ought to need dare情态动词的用法I. can/ could1. _Can_ you speak Japanese? Just a little.2. Only the judge _can_ save her from prison. 3. I _could_ drive a car before I left middle school