She has an ability to speak four languages .
21.他们制订了一个研制新产品的计划。
They made a plan ( n. ) to develop a new product .
22.他无事可做。
He has nothing to do .
23.他们仍有许多要克服的困难。
It is very kind of you to have given us so much help .
6.他们拒不采纳那个建议是愚昧的。
It is foolish of them to turn down the proposal .
动词不定式作表语
7.她最大的愿望是将自己的知识用于实践。
Her best wish is to put her knowledge into practice.
1.乘飞机去那儿将只花你两个小时。 动词不定式作主语 It will take you only about tow hours to get there by air.
2.将这件事再做一遍需要时间。
To do it once more needs time .
3.让他在一周内完成这件工作是很困难的。
11.他父亲答应今年夏天带他去意大利。
His father promised to take him to Italy this summer .
12.那位女孩给我们演示怎样跳迪斯科。 （疑问词+to do）
The girl showed us how to dance disco.
13.我没想到会在比赛中获得第一名的。
8.他的计划是要对他们的设计进行完善。
His plan is to perfect their design.
9.他们似乎已成功地做完了试验。
They appear to have accomplished their experiment.
动词不定式作宾语
10.她年青的时候就学会做饭了。
She learned to cook when she was young .
I didn't expect to win the first place in the competition.
14.他们保证在星期一以前完成工作。
They undertook to finish the work by Monday.
动词不定式作宾语
15.他听到那个消息啼笑皆非。 （疑问词+to do）
They still have many difficulties to overcome.
动词不定式作状语
24.她昨天来看我了
She came to see me yesterday .
25.他曾去新西兰深造过。
He has been to New Zealand for further education.
18.他们计划研制一种新产品。
They plan to develop a new product .
19.我们达成了共同干这工作的协议。 动词不定式作定语
WБайду номын сангаас reached an agreement to do the work together .
20.她有讲四种语言的能力。
序数词first ，second 等以及last，best， only 等词常用不定式 来作它们的定语。
动词不定式翻译练习
动词不定式作主语
在正式的书面文体中，如果是不定式作句子的主语，那么 要将不定式后置，而用引导词it 来取代它的主语位置。It 在句中没有任何意义，是句子的形式主语；真正的逻辑主 语还是不定式。 另外，如果要说明不定式短语的逻辑主语是谁，可在不定 式前面加for sb.短语； 在某些形容人的品质的形容词作表语时，则要用以of sb.短 语（这类形容词常见的有：kind , good , nice , wise , unwise , clever , silly , wrong , right , foolish , stupid , careless , considerate , rude , naughty , impolite）
26.那人为了养家不得不在业余时间做些另活。
The man has to do some part-time jobs in his spare time so as to support his family .
27.要当尖子学生，你应更加努力学习
You should study even harder in order to be a top student.
It is difficult for him to finish the work within one week.
4.对我们来说，参加这个会议是件快事。
It is a pleasure for us to take part in the conference.
5. 你给予我们这么多的帮助，真是太好了。
He didn't know whether to laugh or to cry when he heard the news.
16.我要给你出怎么办的主意。 （疑问词+to do）
I'd like to advise you what to do.
17.他同意和我们一起干。
He agreed to join us .
31.没有人注意到他们离开了屋子。
Nobody noticed them leave the house .
32.听见有人开门。 （用被动语态）
Someone was heard to open the door .
动词不定式作宾补
28.不要让他在这会儿进来。
Don‘t allow him to come in at this moment.
29.请提醒我下午把信寄出去。
Please remind me to post the letter this afternoon.
30.那故事使大伙都笑了。
The story made all of us laugh .