智学网整理了关于2022年中考英语考试知识点：情态动词，期望对同学们有所帮助，仅供参考。
情态动词：
①容易见到的情态动词有：can,may , must ,shall , will , dare, need等,另外,have to、had better也当作情态动词用。情态动词后面需要加动词的原形。
②can表示体力、脑力方面的能力或客观的可能性。口语中, 在询问或说明一件事能不能做时,常用can代替may。情态动词can的过去式是could,否定式是cannot一般缩写成cant,could的否定式是could not,一般缩写成couldnt。如：Can I help you?/ He can swim./ That cant be Mr Li.
③ may表示允许、请求或可能性,用may提问时,一定回答一般用Certainly或Yes,you may.;否定回答一般用cant或mustnt. 如：May I ask you a question?-Certainly./ You may go now./ It may be in your pocket.
④ must表示需要、肯定的意思。表示需要时否定形式是mustnt;表示肯定时,否定形式是cant 如：We must be very careful when we cross the road./ It must be Jack./ I havent seen Kate today. She cant be here.
[注意]用must进行提问时,一定回答用must,否定回答用neednt;用must进行提问时,一定回答仍用must,但否定回答用cant.如：Must we clean the room before we leave? -Yes,you must.或No,you neednt. / Must she be in the romm? -Yes,she must.或No,she cant.⑤ have to表示不能不、需要。Well have to leave now for it is very late at night.
have to的疑问形式是：助动词++have to,否定形式是：助动词+not+have to或者用neednt.如：Do you have to stay until 8 oclock?/ You dont have to do so.
⑥ shall在问句中,可表示征求他们建议,与第一人称连用;在陈述句的2、三人称的主语后或表示命令、警告、允许等。如：Shall we go to the zoo this weekend?/ He shall bring his own book next time.
⑦ should可表示劝告、建议、惊奇等意思。We should speak to old people politely.
⑧ will表示意愿、决心等意思,一般与第二人称连用。如：Will you please close the door for me?/ I will teach you a lesson.
⑨would表示过去的意愿、决心等。He would sit near the fire every time he returned home.
would也可以表示目前的状况,表达说话人向他们提出的需要,语气比will婉转、客气。在平时会话中,我想要一般用I would like to或I should like to来表示。如：Would you like to have a rest at the moment?
would还可以表示过去常常发生的事情。如：Every year parents would tell their children about the boy who would save his people.
⑩ need表示需要,用于疑问句或否定句。need作实义动词时,在一定、否定、疑问句中都可以用。如：He neednt do it in such a hurry./ He needs some help./ He doesnt need to bring his football socks then.
⑾ dare是敢的意思,使用方法几乎与need一模一样,即在疑问句和否定句中,可以作情态动词,后面用不带to的动词不定式。在一定句中和实义动词一样,后面的动词不定式要带to。How dare you say I am a fool?/ He didnt dare to touch the red button.
⑿ d better 一般也当作情态动词用,否定式是：d better not . 如：Youd better sit here and say nothing./ Youd better not speak because he is sleeping.
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