动词的用法,系动词的用法 _生活百科

英语情态动词用法与归纳

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情态动词是一种本身有一定的词义,表示说话人的情绪,态度或语气的动词,但不能单独作谓语, 只能和其他动词原形构成谓语。
情态动词数量不多,但用途广泛,主要有下列:
can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would) .
情态动词的位置:
情态动词在句中放在谓语动词之前, 谓语动词前若有助动词,则在助动词之前,疑问句中, 情态动词则在主语之前。
情态动词的特点:
情态动词无人称和数的变化, 情态动词后面跟的动词需用原形,否定式构成是在情态动词后面加 "not" 。个别情态动词有现在式和过去式两种形式, 过去式用来表达更加客气, 委婉的语气, 时态性不强, 可用于过去，现在或将来。
情态动词的用法:
can (could) 表示说话人能,可以,同意,准许,以及
客观条件许可,could 为 can 的过去式。
Must 必须,应该,一定,准是, 表示说话人认为有必要做某事, 命令, 要求别人做某事以及对事物的推测。
must 用来指一般现在时和一般将来时, 过去式可用 have to 的过去式代替。
must + have + 过去分词,表示现在对过去事物的推测。
must 和 have to 的区别: must 表示说话人的主观思想, have to 表示客观需要。
need 是一个情态动词, 他的用法完全和其他情态动词一样, 但 need 还可当作实义动词使用, 这时 need 就象其他动词一样,有第三人称,单复数, 后面加带 to 的动词等特性。
needn't + have + 过去分词表示过去做了没必要做的事情。
dare 除用作情态动词外,更多的是当实义动词使用, 用法同实义动词一样,要考虑人称,单复数,时态等。
ought 应当,应该后面跟带有 to 的动词不定式。
ought + to have done 句型。指过去动作,表示一件事情该做而未做。
ought not to have done 句型。表示一件不该做的事情却做了。
will (would)决心,愿望。would 为 will 的过去式,
will, would用于疑问句表示说话人向对方提出请求或询问,用 would 比 will 更婉转,客气。
Shall, should表示命令,警告,允诺,征求,劝告,建议惊奇。
【动词的用法,系动词的用法】have to,不得不,必须,表示客观条件只能如此, 而must 则表示主观思想必须
初中英语动词的用法和固定搭配

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1. allow sb. to do sth. 允许某人去做某事
My father allowed me to go out for a walk after finishing my homework.
2. asked sb. (not) to do sth. 叫某人做事某事(叫某人不要去做某事)
My father asked me to study hard.He asked me not to swim alone.
be asked to do sth. 被叫去做某事/被邀请去做某事
I was asked to have a dinner with them yesterday.
3. be afraid to do sth. 害怕做某事She is afraid to ask me questions.
4. be afraid of doing sth. 害怕做某事I am afraid of going out at night.
5. be afraid of sth. 害怕某物He is afraid of snakes.
6. be amazed to do sth. 对做某事感到惊讶He was amazed to meet the girl there.
be amazed at sth. 对某事感到惊讶they were amazed at the news
7. be busy doing/with sth. 忙于做某事 (常考)e.g: I was busy washing my car at that time. 那时候我正忙于清洗我的车子。I am busy with my work.
8. be coming/going/leaving/fiying/moving/dying(某些位移动词用进行时态时表将来)the bus is coming/the dog is dying.
9. be excited to do sth. 对做……感到兴奋Jacky was excited to travel there by plane.be excited at sth.Lily was excited at his words.be excited about doing sth.he was excited about passing the exam without going overing books.