only倒装用法
一 、“only+副词”位于句首：
1、Only then did I realize that I was wrong.
只是到了那时我才意识到是我错了。
2、Only by shouting was he able to make himself heard.
他只有叫喊才能让别人听到他。
二、“only+介词短语”位于句首：
1、Only by working hard can you succeed.
只有努力工作你才能成功。
2、Only in the reading-room can you find him.
你只有在阅览室才能找到他。
三、“only+状语从句”位于句首：
Only after she died was I able to appreciate her.
只有到她死后我才认识到她的价值。
四、注意：若位于句首的不是only+状语，而是 only+宾语等，则通常无需倒装(但有时也可以倒装)：
Only a policeman the children saw in the street.
孩子们在街上只看到一个警察。
扩展资料
一、only if的用法
1、在only if 中，副词only是中心词,而从属连接词if只用来连接从句，因此，它表示“只有……(才);只有在……的时候，唯一的条件是……”的意思。
2、only if 有时也写成only…if，表示唯一的条件，但是意思不变。
二、if only 的用法
1、在if only中，从属连接词if是中心词,而副词only只是来加强if的语气的，因此，if only仅是if的一种强化形式，而不仅能表达说话人的愿望。因此，它同if一样，也能引出条件状语从句。
2、if only常常用来表达强烈的愿望或遗憾，因此，主要用在虚拟语气中，用以表达强烈的愿望或非真实条件。常被译为“但愿”、“要是……该多好啊”等。
3、if only从句在大多数情况下用作虚拟条件句，但是偶尔也有用在真实条件句的情况。
1、only位于句首修饰状语要倒装
只有倒那时我才将会有机会实现我的梦想.
will 是谓语的一部分因倒装提前了.再如
only in this way can you learn english well
是only引起的倒装句,will 是助动词,如果这个句子正过来说就是 I will have a chance of
achieving my dream only then
2、在句首的only如果后面跟了副词、介词短语或从句等状语，则主句用倒装结构。如only后跟的是主语，就不用倒装结构了。例如：
Only when the war was over in 1918 was he able to get back to work.
Only in this way can you learn English well.
Only after a bitter struggle was the aim achieved.
Only the teachers are allowed to use the room.(不倒装)
Only five men were hurt in the accident.(不倒装)
注意：only和所修饰的状语如果不在句首，则不倒装。
如：
The boy was helped out only when his father arrived in a hurry.
Only then did he realize the importance of English
只有在那时候他才意识到英语的重要性。
only then ,是过一小会儿的意思，一般用在句首，引导倒装句。
例句Only then did he realize the importance of English.
解析：在句首的only如果后面跟了副词、介词短语或从句等状语，则主句用倒装结构。如only后跟的是主语，就不用倒装结构了。
再比如
Only when the war was over in 1918 was he able to get back to work.(倒装句)
Only five men were hurt in the accident.(不倒装)
以上就是only引导的倒装句的讲解，一般来说有三种形式：
1，only+疑问副词(when,where,how)+从句+谓语+主语+其他
2，only+until/till+从句+谓语+主语+其他
3，only+状语+谓语+主语+其他
.only位于句首修饰壮语要倒装
只有倒那时我才将会有机会实现我的梦想.
will 是谓语的一部分因倒装提前了.再如
only in this way can you learn english well
是only引起的倒装句,will 是助动词,如果这个句子正过来说就是 I will have a chance of
achieving my dream only then
在句首的only如果后面跟了副词、介词短语或从句等状语，则主句用倒装结构。如only后跟
的是主语，就不用倒装结构了。例如：
Only when the war was over in 1918 was he able to get back to work．
Only in this way can you learn English well．
Only after a bitter struggle was the aim achieved．
Only the teachers are allowed to use the room．（不倒装）
Only five men were hurt in the accident．（不倒装）
注意，only和所修饰的状语如果不在句首，则不倒装。
如：
The boy was helped out only when his father arrived in a hurry．
Only then did he realize the importance of English
只有在那时候他才意识到英语的重要性。
only then ,是过一小会儿的意思，一般用在句首，引导倒装句。
例句Only then did he realize the importance of English．
解析：在句首的only如果后面跟了副词、介词短语或从句等状语，则主句用倒装结构。如only后跟的是主语，就不用倒装结构了。
再比如
Only when the war was over in 1918 was he able to get back to work．(倒装句）
Only five men were hurt in the accident．（不倒装）本回答被网友采纳
Only John is allowed to enter the lab. 只有约翰被允许进入实验室。
Only the boy himself knows what he is going to be. 只有这孩子本人知道他将来的前途。
6.以so 开头的句子。如果只是重复前面一句话的意思，不倒装。如：
It was very cold yesterday.昨天很冷。
So it was.正是这样。
He did a good job. 他干的很出色。
So he did. 确实如此。
7.以 not only 开头的句子要倒装，但but also 后面的句子不倒装。如：
Not only did he speak more correctly, but also he spoke more easily. 不仅他说得更准确，而且他说得也更轻松。
8.以 not until 开头的句子主句要倒装，没有助动词时要加助动词。如：
Not until Mother came back did it stop raining. 直到妈
only用倒装句