大學英語四級常用語法

被動式: 當不定式的邏輯上的主語是不定式所表示的動作的承受者時, 不定式一般要用被動形式.

It is an honour for me to be asked to speak here.

She hated to be flattered.

He wanted the letter to be typed at once.

This is bound to be found out.

There are a lot of things to be done.

She was too young to be assigned such work.

功用: 不定式可以作主語 (a), 賓語 (b), 表語 (c), 定語 (d) 或是狀語 (e).

a. To scold her would not be just.

b. We are planning to build a reservoir here.

c. One of our main tasks now is to mechanize agriculture.

d. Do you have anything to declare?

e. We have come to learn from you.

不帶to 的不定式:

在“動詞+ 賓語+不定式”結構中, 如果動詞是表示感覺意義的see, hear, watch, smell, feel, notice等, 或是表示“致使”意義的 have, make, let等, 其後的不定式結構不帶to.

John made her tell him everything.

這類結構轉換為被動語態時, 後面的不帶to 的.不定式一般還原為帶to 的不定式.

She was made to tell him everything.

在 had better, had best, would rather, would sooner, would just as soon, might (just) as well, cannot but 等搭配之後, 動詞不定式也不帶to.

I'd rather not have eggs and bacon for breakfast.

They cannot but accept his term.

在make do, make believe, let drop, let fall, let fly, let slip, let drive, let go of, let there be, hear say, hear tell, leave go of等固定搭配中, 用不帶to的動詞不定式.

John let fly a torrent of abuse at me.

I've heard tell of him.

在動詞help(或help +賓語)之後可用不帶to的不定式, 也可用帶to的不定式.

Can I help (to) lift this heavy box?

在介詞except, but 之後, 如果其前有動詞do的某種形式, 不定式一般不帶to, 反之帶to.

There is nothing to do except wait till it stops raining.

Smith will do anything but work on a farm.

There's no choice but to wait till it stops raining.

連詞 rather than, sooner than 置於句首時, 其後的不定式不帶to.

Rather than push the book back as he wanted to do, he forced himself to pick it up.

出現在句中其他位置時, 其後的不定式有時帶to, 有時不帶to.

He decided to write rather than telephone.

The manager believes it is important to invest in new machinery rather than to increase wages.

用作補語的動詞不定式, 如果主語是由“all + 關係分句”，“thing +關係分句”，“what分句”或“thing +不定式結構”等構成，並帶有do的某種形式，這時，作為主語補語的不定式可以省to，也可以不省.

What he will do is (to) spoil the whole thing.

All you do now is complete the form

The only thing I can do now is go on by myself.

The thing to do now is clear up this mess.

The least I can do is drive everybody else closer to the issue.

1. The children went there to watch the iron tower _D_.

A to erect B be erected C erecting D being erected

watch 看電視用，看比賽用; see 看電影用;

感官動詞watch， see， hear; 感官動詞 + 名詞(代詞)+ do

be erected 強調的是動作的結果; being erected 強調的是動作的過程。

2. The engine _D_ smoke and steam.

A gives up B gives in C gives away D gives off

give up 放棄; give in 屈服，讓步; give off 釋放，放出(煙和氣體);

give away 泄露，走漏風聲;婚禮中新郎的父親把新娘的手交給新郎的過程;贈送禮品。

3. The manager promised to keep me _C_ of how our business was going on.

A to be informed B on informing C informed D informing

keep sb. + 分詞; inform v. 通知，告知; inform sb. of sth. 通知某人某件事情

keep me informed 使我被告知。

4. The goals _B_ he had fought all his life no longer seemed important to him.

A after which B for which C with which D at which

fight with sb. (注意要看整個句子); fight with + 工具 用該工具來打仗。 fight for 為…而戰。

I fight with him. 我和他打起來了。 I fight with him against her. 我和他並肩對付她。

5. They _C_ in spite of the extremely difficult conditions.

A carried out B carried off C carried on D carried forward

in spite of 儘管; carry on 堅持，繼續。

6. I should like to rent a house， modern， comfortable and _B_ in a quiet neighborhood.

A all in all B above all C after all D over all

all in all 總而言之;above all 首先，尤其是;after all 畢竟，終究;overall 全面的，總體的

in a word 總之，in short 簡而言之，in conclusion 最後，總之，to sum up總之，總而言之。

7. _B_ we have finished the course， we shall start doing more revision work.

A For now B Now that C Ever since D By now

now that 既然，由於(相當於since); ever since 自從…以來。

與that搭配且後面可以加句子的幾個表達形式：

now that 既然，由於; in that 因為; except that 除…之外。

except後面加名詞或代詞;except that後面加句子。

8. What you have done is _D_ the doctor’s orders.

A attached to B responsible to C resistant to D contrary to

be attached to 連接，附屬; This school is attached to Beida. 這所學校附屬於北大。

responsible to 對…負有責任; resistant adj. 反抗的，抵抗的; water resistant 防水的。

be contrary to 與。。相反(相違背)。

9. John regretted _A_ to the meeting last week.

A not going B not to go C not having been going D not to be going

regret doing 後悔做過某事; regret to do sth. 遺憾的做某事(應用語境非常有限)。

10. We regret to inform you that the materials you ordered are _B_.

A out of work B out of stock C out of reach D out of practice

out of work 失業; out of reach 夠不着 within reach 夠得着; out of practice 缺乏練習。