并且它们在从句中充当状语时, 引导词用　　　或　　　.

　　【尝试运用】

　　1)I think you've got to the point 　　　 a change is needed, otherwise you'll fall.

　　A. when B. that

　　C. where D. which

　　2)I can think of many cases 　　　 students obviously know a lot of English words and expressions but can't write a good essay.

　　A. why B. which

　　C. as D. where

　　3)We're just trying to reach a point 　　　 both sides will sit down together and talk.

　　A. where B. that

　　C. when D. which

　　2. . . . only then did we decide to answer violence with violence. ......只有到那个时候, 我们才决定用暴力反抗暴力。

　　【观察思考】

　　1)Only then did she realize she had made mistakes. 直到那时她才意识到她所犯的错误。

　　2)Only when he came back did I go to bed. 当他回来的时候, 我才上床睡觉。

　　3)Only in this way can you learn English well. 只有用这种方法你才能学好英语。

　　4)Only recently have I thought of them. 直到最近我才想起他们。

only 修饰状语(副词, 介词短语, 从句等)放在句首时, 主句要用　　　。

　　【尝试运用】

　　1)I failed in the final examination last term and only then 　　　 the importance of studies.

　　A. I realized B. I had realized

　　C. have I realized D. did I realize

　　2)翻译以下句子。

　　(1)只有战争结束时他才能够回到家里。

　　(2)只有用这种办法你才能解决这个问题。

　　(3)只有当他回来时我们才能知道秘密。

参考答案

Step 1

　　1. 【归纳总结】爆炸, 大发雷霆; 炸毁, 给......充气

【尝试运用】1)blew up　2)blow up　3)blew up