英语语法学习动词句式：vt.+it+从句

先看一道试题：

I hate _______ when people speak with their mouth full. A. that B. this C. it D. which 答案C。

这是一个固定句式。可以用在这个句式中的动词有两类： 1. like, appreciate, hate, dislike, 通常后接if从句或when从句。 例如：

a. I like it when she smiles. 我喜欢她笑起来的样子。

b, I would appreciated it if you left me alone for a while. 请让我独自呆一会儿。

2. depend /rely /count on; see to, 后接that从句。 例如：

a. You can depend on it that they will come to your help when necessary. 你可以相信一点：必要时他们回来帮你的。

b. Please see to it that the windows are closed and the door is locked.

= Please make sure that the windows are closed and the door is locked.

= Please be sure to close the windows and lock the door. 请务必关上窗户锁好门。