高中英语/Only句首，半倒装

Only加状放句首，
主句谓语向前走；
only修饰主语句，
语序原样不用瞅。

Only+副词/介词短语/状语从句置于句首，主句半倒装

核心规则：
only修饰状语放句首，主句倒装，从句不倒装；
only修饰主语，绝不倒装

1. Only occasionally does he go out for dinner.
他只是偶尔出去吃晚饭。（occasionally 副词）

2. Only in secret can they meet each other.
他们只能秘密相见。（in secret 介词短语）

3. Only under great pressure can he make up his mind.
只有在巨大压力之下，他才能下定决心。（under great pressure 介词短语）

4. Only after repeated attempts did he finally succeed.
经过多次尝试之后，他才终于成功。（after repeated attempts 介词短语）

5. Only when all preparations were complete did we start the project.
只有一切准备就绪，我们才启动这个项目。（when引导状语从句）

6. Only if you keep practicing will you make steady progress.
只有坚持练习，你才会稳步进步。（if引导条件状语从句）

7. Only then did I realize my mistake.
直到那时我才意识到我的错误。

8. Only in this way can you solve the problem.
只有用这种方法，你才能解决问题。

9. Only when he returned did we find out the truth.
直到他回来，我们才查明真相。

⚠️高考易错对比（不倒装）

Only she has access to this room.
只有她可以进入这个房间。
（only修饰主语she，不倒装）
Only she can answer the question