I don’t feel it difficult to understand him. 我觉得听明白他讲的话并不难。
She found it hard to make good friends there. 她发现在那儿很难交到好朋友。
Better technology makes it possible to produce more crops in the farm.
He made it a rule to study in the early morning. 他让早起学习成为自己的惯例。
2） it 代表后移的宾语从句
The headmaster has made it clear that the school meeting will not be put off.
I take it for granted that you will win the first prize. 我认为你获一等奖是理所当然的事。
He hasn’t made it clear when he is coming back. 他没有说明他什么时候回来。
I take it that you have been out. 我以为你一直出门在外。
You can put it that it was arranged before. 你可以说这是以前安排的。
I hate it when people talk with their mouths full. 我讨厌人们一边吃饭一边说话。
I like it when the weather is clear and bright. 我喜欢晴朗的天气。
3） it 代表后移的动名词
They took it their duty taking good care of the wounded soldiers.
I found it no good arguing with him. 我发现和他争论没有用。
I think it very unwise going on like this. 我认为这样进行下去很不明智。