重点句型

11. ...only then did we decide to answer violence with violence.……只有到这个时候，我们才决定用暴力反抗暴力。

only 修饰的时间、条件、方式状语等放在句首时，主句要用部分倒装。

Only then did she realize she had made mistakes.

直到那时她才意识到她所犯的错误。

Only when he came back did I go to bed.

当他回来的时候，我才上床睡觉。

温馨提示

only 放在句首修饰状语时，主句部分要倒装，修饰主语、宾语时，则不倒装。

Only you understand me.只有你了解我。

Page No.145

高手过招

单项填空

I failed in the final examination last term and only then         the importance of studies.(2010·山东青岛二中月考)

A. I realized                      B. I had realized

C. had I realized               D. did I realize

解析：选D。only then位于句首时句子用倒装结构，realize的动作在fail之后发生，故选过去时。

12. He taught us during the lunch breaks and the evenings when we should have been asleep.

他在午餐后的休息时间以及晚上本来该睡觉的时间教我们学习。

should have done 本应该做某事（但实际上并没有做）/对过去已发生的事情的推测。ought to= should 但在语气上比should要强。