专升本英语语法中的不定式部分怎么学习呢?

浏览次数:次 发布时间:2021-06-14

大学生英语语法不定式部分怎么学?今天我们来看看湖北高校对高校网站的小编。​

,大学生英语语法不定式部分怎么学?今天我们来看看湖北高校对高校网站的小编。

,一,不定式的作用

  1、作主语  不定式作主语时,谓语用单数。往往用it 作形式主语,把不定式放在谓语后面。如:  It took us two hours to finish the job.  It is impossible for us to get there on time.  注意:  (1)其他系动词如look, appear等也可用于此句型。  (2)当不定式作主语的句子中又有一个不定式作表语时,不能用It is …to…的句型。试比较:It is to negate my own idea to believe him.(错)  To believe him is to negate my own idea .(对)  3)It is+ adj.+ of / for sb. to do sth. 结构中,当不定式的逻辑主语和前面的形容词可以构成系表结构时,用of, 否则用 for.  2、作宾语  (1)动词+不定式。如:  He managed to escape from the fire.  I find it hard to get along with him.(it 作形式宾语)  注:下列动词通常用不定式作宾语:want, try, hope, wish, need, forget, know, promise, refuse, help, decide, begin, start, learn, agree, choose, get等  (2)动词+疑问词+to , “特殊疑问句+不定式”相当于名词,作宾语。如:  I don’t know what to do next/ how to do it next.  注意:不定式短语作宾语时,如果还带有宾语补足语,往往把不定式短语放在宾语补足语之后,用it 作形式宾语。如:  I find it necessary to learn a foreign language.  3、
作宾语补足语  (1)动词+宾语+不定式(to do)。如:  He warned me to be careful.  What makes you think so?(不带to的不定式)  注:可以用动词不定式做宾补的动词有:ask, tell, order ,want ,get, would like, like, advise, invite, allow, help, wish, warn, expect, prefer, encourage  (2)表见解、看法的动词结构可为:动词+宾语+ to be 的不定式结构。如:  We consider Tom to be one of the best students in our class.  The book is believed to be useful.(被动语态)  (3) There +不定式。如:  We didn’t expect there to be so many people there.我们没料到会有那么多人在那里。  注意:(1)有些动词需用 as 短语作补语,像regard, think, believe, take, consider。如:  We regard Tom as our best teacher.  Mary took him as her father.  (2)在动词feel (一感),hear, listen to(二听),have, let, make(三让),notice, see, watch, observe, look at(五看)(即:吾看三室两厅一感觉)等后面的补足语中,不定式不带to,但变为被动语态后,必须带to。如:  They saw the boy fall off the tree.

,有人看见那个男孩从树上掉了下来。

,以上是不定式语法的学习内容,你要为高考准备加油哦~


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