句型33.

By the time+从句，＋主句.（注意时态的变化。）如：

By the time you came back, I had finished this book.到你回来时，我已经写完了这本书。

By the time you come back, I will have finished this book.到你回来时，我将写完这本书了。


句型34.

each / every time +从句，＋主句. (这时相当于whenever 或no matter when引导的从句。从句也可放在主句之后。)如：

Each time he comes to Harbin, he always drops in on me.每当他来哈尔滨，总是顺便来看看我。


句型35.

Where +从句，＋主句. 如：

Where there is no rain, farming is difficult or impossible.哪里没有雨水，种庄稼是很难的或者是不可能的。


句型36、Anywhere / Wherever+从句，＋主句. 如：

Anywhere I go, my wife goes too.无论我去哪儿，我的妻子也去哪儿。请比较：

I will go wherever you suggest.你建议我去哪儿，我就去哪儿。