2023英语六级语法常考知识点(6):only

下面是云烟情四六级英语频道整理的2023英语六级语法常考知识点(6)：only，欢迎阅读。

在学习英语的过程中，我们经常会遇到only与其他单词或结构相匹配，以表达不同的含义。现在，我们将以这些用法为例。

第一，only引导的短语或句子放在句首作状语时，通常要使用倒装结构。例如。

Only in this way can you solve the problem.

只有这样你才能解决问题。

Only if you study hard can you pass the exam.

只有努力学习才能通过考试。

Only then did I realize my mistake.

只有那时我才意识到自己错了。

二、not only...(but also)当它出现在句子的开头时，如果框架与两个句子相连，则常用倒装。例如，

Not only did we lose all our money,but we also came close to losing our lives.

我们不仅丢了钱，还差点丢了命。

Not only did he speak correctly,but he also spoke easily.

他不但说得准确，而且说得很轻松。

第三，only放在不定式的前面，常常表示不愉快或出乎意料的结果。例如，如果你把它放在不定式的前面。

I went all the way to his home only to find hime out at a meeting.

我径直走到他家，却发现他出去开会了。

I hurried to the post office only to find it closed.

我赶到邮局，没想到已经关门了。

She went home only to find her house burglarized.

她回到家，发现房子被盗了。

四、“too...to...”在结构中，表示否定意思，但在结构中，“only too...to...”结构中，only too = very，表示肯定意思。例如

The patient is too weak to walk.

病人太虚弱了，走不动。

We are only too willing to do it for you.

我们非常愿意为你做这件事。

I am only too delighted to accept your king invitation.

我很高兴接受你的邀请。

五、在“one of 复数名词 定语从句”在结构上，定语从句一般被视为修饰复数名词，谓语应采用复数形式。但在“the only one of 复数名词 定语从句”在结构上，定语从句被视为修饰“the only one”，谓语动词应采用单数形式。如

This is one of the best novels that have been published in the past two years.

这是近两年出版的最好的小说之一。

He was the only one of the boys who was given a prize.

他是这些孩子中唯一得到奖励的。

She is the only one of the girls who has been to the US.

她是唯一一个去过美国的女孩。

六、If only 一种虚拟语气，表达愿望或一种未实现的条件，多用于感叹句，其主句常被省略。例如，

If only she would marry me!

如果她能嫁给我该多好！

If only he had known about it!

如果他当时知道这件事该多好！

If only you could have been here earlier that day!

如果你那天早点到这里就好了。

If only there were forty-eighty hours in a day.

如果一天有48个小时。

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