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I won’t go unless (I am) invited. 我不會去, 除非請我。

He worked very hard though (he was) still ratherpoor in health. 盡管身體還不好, 但他仍努力工作。

He will work hard wherever (he is) sent by theParty. 無論黨把他派往哪里, 他都會努力工作。

While (I was) waiting I was reading some old magazines. 等的時候我在看一些舊雜志。

If (it is) carefully done, the experiment will besuccessful. 如果做得仔細(xì), 這個實(shí)驗(yàn)會成功。

Look out for cars when (you are) crossing thestreets. 過馬路時要注意汽車。

6. 這個to能省略嗎

—Would you like to see the film with me?

—Yes, I’d very much like ______.

A. to                        B. to see                  C. ×                         D. see

此題應(yīng)選A。該句為省略句, 補(bǔ)完整為：I’d very muchlike to see the film with you. 我很想同你去看電影。

有時為了避免重復(fù)前面已經(jīng)出現(xiàn)過的動詞，可以用不定式符號(to)來代替不定式結(jié)構(gòu)，但在許多情況下這個不定式符號(to)不能省略：

I don’t dance much now, but I used to. 我現(xiàn)在不常跳舞, 但我過去常常跳。

He hasn’t done the washing, but he’s going to. 他還沒有洗衣服, 但他就要去洗了。

Why didn’t you come last night?You were told to. 你昨晚為什么不來, 告訴過你要來的吧。

The boy wanted to ride his bicycle in the streetbut his mother told him not to. 這個男孩想要到街上去騎自行車, 但他母親叫他不要去。

A：Is he going to learn to drive? 他打算學(xué)開車嗎?

B：He’d be silly not to, wouldn’t he? 他要是不學(xué)開車, 那他就有點(diǎn)傻, 是不是?

I think he should get a job, but you can’t forcehim to. 我想他應(yīng)該找個工作, 但你不能逼他找。

不過有時也可將代替不定式的不定式符號(to)省略：

—Ought he to start now? 他現(xiàn)在必須出發(fā)嗎?

—Yes, he ought (to). 是的, 他必須出發(fā)。

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