名师指导四六级基础备考：核心语法（41）

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新东方在线2010年6月四六级晒分龙虎榜公布

Now let’s do some translation:

如果她过去没有刻苦训练的话，就不会跑得这么快。（从句动作指的是过去，主句指的是现在的情况）(Fact: She has trained very hard, so she is able to run very fast now.)

If she hadn’t trained so hard, she wouldn’t be able to run so fast.

如果你当初每天都练习说英语的话，你的英语就会说得很好。（从句动作指的是过去，主句指的是现在的情况） （fact: You didn’t practice speaking English very hard every day, so you can’t speak English very well ）

If you had practiced speaking English every day, you would speak English well enough.

5. 以上句型可以转换成以下形式：

1）条件状语从句省略if：在书面语中，如果条件状语从句的谓语中有were, had 或should, 就可以省略if, 并将were, had 或should 放到句首，谓语主语之前，用 “Were/Had/Should + 主语”的形式。这种虚拟语气在意义上与带if 的条件状语从句相同。当然，如果从句没有were, had, 或should,就不能省略if.

Now let’s look at some examples:

If I were to do it, I’d do it some other way. →Were I to do it, I’d do it some other way.

If you should fail, try again. →Should you fail, try again.

If you had been here earlier, you would have seen him. →Had you been here earlier, you would have seen him.

但是，If you came tomorrow, we would have the meeting.这句话if 就不能省略。

而且，在虚拟条件状语从句中，省略了if的倒装形式的句首不能用动词的缩略形式。如我们可以说：

Were it not for the expense, I would go to Italy.

但不能说：Weren’t it for the expense, I would go to Italy.

Please do not use “if”：

如果我是你，我每天早上就早起床。

Were I you, I would get up early every morning.

假如你昨天早十分钟到达火车站，你就赶上火车了。

Had you arrived at the station ten minutes earlier yesterday, you could have caught the train.

要是明天有会议，我就会来。

Should there be a meeting, I would come.

2）用介词短语代替条件状语从句。（可以改为条件状语从句）。例如：

Without air, there would be no living things.

But for your help, I couldn’t have done it.

Without electricity human life would be quite different today.

Now let’s do some translation. 请用介词短语代替条件状语从句。

要不是你的帮助，我就失败了。

But for (except, without) your help, I would have failed.

如果没有恰当的控制手段，核反应堆就会爆炸。

Without proper means of control, a nuclear reactor would explode.

3）用其他方式代替条件状语从句（可以改写为条件状语从句。）例如：

It would produce bad results to do that. 用动词不定式 =If you did that/should do that, it would produce bad results.

She would have come, but she wasn’t informed, nor invited. （用but.）=She would have come, if she had been informed or invited.

A more responsible person would not have left the work half done. 一个更负责的人是不会把工作做到一半就不管的。(用比较级) ＝If you (he, she) were more responsible, you (he, she) would not have left the work half done.

Now let’s do some translation:

聪明一点的人是不会干出这等蠢事的。

A wiser man would not have done such a foolish thing.

我应该早点写完这封信，但我一直很忙。

I should have written the letter earlier. But I have been very busy.

要能登上珠穆朗玛峰，那经历该多棒！

It would be a fantastic experience to climb up to Mount Everest.

四级历年真题（2001-2009）

2001年1月	2001年6月	2002年1月	2002年6月	2003年1月
2003年6月	2003年9月	2004年1月	2004年6月	2005年1月
2005年6月	2005年12月	2006年6月	2006年12月	2007年6月
2007年12月	2008年6月	2008年12月	2009年6月	2009年12月

六级历年真题（2001-2009）