v. 不定式作状语

1. 不定式作状语主要表目的、结果和原因。

They ran over to welcome the guests .

他们跑过去欢迎客人。

2. 常用的表示目的短语有：to do, in order to do, so as to do (不能放在句首)。不定式作目的状语，其否定式必须用in order not to do或so as not to do; 不能只用not to do。

He got up early so as not to be late .

他很早起床以便不迟到。

In order to catch up the others in her class, she works very hard.

为了赶上班里其他人，她学习很用功。

3. 不定式表示目的，常用在go/come and (do sth.)这样的结构中。主要用于祈使句或go, come是动词原形的句子中。

Let's go and have a look at the pictures over there.

咱们去看看那边的图画吧！

4. 常用too ... to, enough to, so +形容词/副词+ as to, such a +名词+ as to, only to等结构表示结果。

The child is too young to go to school.

这个孩子太小不能上学。

They lifted the rock only to drop it on their own feet.

他们搬起石头砸了自己的脚。

She is such a diligent girl as to study till midnight ever day.

她是如此勤奋的女孩子每天都学习到深夜。

5. too ... to ...结构中间的形容词若是表示情感的kind, ready, eager, pleased等时，不表示结果，也无否定意义。

Would you be too kind to help us to work out the problem?

你能帮我算出这道题吗？

6. only+to不定式表示结果，通常是一个未曾预料的不愉快的结果。

He hurried to the station, only to find the train gone.

他匆忙赶到火车站，却发现火车已经走了。

7. 常用表示情绪的动词surprised, joy, glad, pleased等表示原因。

We were very surprised to hear the news that he had left without saying goodbye to us.

我们很吃惊听说他走了而没有向我们告别。

We jumped with joy to hear the news that we were admitted to university

听到考上了大学的消息，我们都欣喜若狂。

He was surprised to find all the houses on fire.

他吃惊地发现所有的房子都着火了。

8. 常用独立成分，表示说话人的态度（插入语）：to tell you the truth, to be exact, to be sure, to be frank with you, to be honest, to cut a long story short, to start with, to begin with, to say nothing, to be brief等。

To be sure , we can do it very well.

毫无疑问，我们能做得很好。

To tell you the truth , this is all ABC to me.

给你说实话吧，这对我来说很简单。

专项练习

1. The flat is much too small _______.

A. for the family to live

B. for the family to live in

C. that the family can't live in

D. that the family can't live

2. The teacher didn't speak clearly enough _______.

A. so everyone to understand

B. for every one understood

C. for everyone to understand

D. for understanding

3. Do you think Julia is easy _______?

A. to get along with

B. to get along

C. to be got along with

D. to getting along with

4. Prof. Bush's talk in English was easy _______.

A. for us in following

B. for us to be followed

C. to be followed

D. for us to follow

5. The water-melon juice is nice _______.

A. to drink it

B. to be drunk

C. to drink

D. to be drinking

6. The patients were waiting _______ the doctor.

A. to see

B. for to see

C. for seeing

D. seeing

7. _______ , I don't want to argue with them about the matter.

A. To tell you the truth

B. Telling the truth

C. Having told you the truth

D. Out of the truth

8. The soldier spoke to the boy kindly _______ him.

A. to not frighten

B. so as not to frighten

C. in order to not frighten

D. for not frightening

9. Would you be good enough _______ to the bus station?

A. showing me the way

B. as to show me the way

C. to show me the way

D. so you can show me the way

10. Tom was so careless _______ his car unlocked.

A. to leave

B. that he leaves

C. as to leave

D. leaving

答案速查　1-5　BCADC　6—10　AABCC