情态动词主要用来表示说话人对某一动作或状态的看法或态度,认为“可能”、“应当”、“必要”等等。但本身词义不完全,不能单独做谓语动词,必须和不带“to”的动词不定式(即动词原形;ought除外)连用。情态动词没有人称和数的变化。朗读时,情态动词的肯定式一般不重读。它和介词一样是英语中较难把握的一类,也是每年中考必考内容。综观2007年各地中考试题可以发现,命题者常常借助语境和句子之间意义上的细微差别来考查考生对情态动 Modal verbs are mainly used to express the speaker’s view or attitude towards an action or state, thinking that “may”, “should”, “necessary”, and so on. However, the meaning of the word itself is not complete, and it cannot be used as a predicate verb alone. It must be used in conjunction with the verb infinitive without the “to” (ie, the verb primitive; except the ought). There is no change in the number and verb of modal verbs. When reading aloud, the affirmative form of modal verbs generally does not reread. It is the same kind of preposition as it is difficult to grasp in English. It is also the content of the annual examination. Looking at the 2007 mid-level exam questions, we can see that propositioners often use the nuances of the context and sentence to examine the candidate’s actions on the situation.