一、语法图解
二、语法突破
1．概念
当动词不定式、动名词或从句在某个句子中作宾语时，为了保持句子的结构平衡，常用it作为形式宾语，而将真正的宾语放到句子后部去。
2．用法
it作为形式宾语主要分为几种情况：
(1)it作形式宾语代替动词不定式(短语)
I find it pleasant to work with him.
我觉得和他一起工作很愉快。
They felt it difficult to finish the work in such a short time.
他们认为在这么短的时间内完成这项工作是困难的。
She thinks it her duty to help us.
她认为帮助我们是她的责任。
(2)it作形式宾语代替动名词(短语)
The professor considers it no good reading without understanding.
这位教授认为阅读而不理解是没有益处的。
Do you consider it any good trying again?
你觉得再试会有用吗？
He thought it absolutely senseless attempting the impossible.
想做不可能的事情，他认为是完全没道理的。
(3)it作形式宾语代替从句
I took it for granted that they would not come.
我想当然地认为他们不会来了。
I find it strange that she doesn't want to go.
她居然不想去，我觉得奇怪。
I hate it when my mother asks me to eat eggs.
我讨厌母亲要我吃鸡蛋。
I would really appreciate it if you could help me with my math.
如果你能帮我学数学的话，我会非常感激的。
单句语法填空
①—Have you got used to the Chinese food, Robert?
—Yes, but I don't like it when a Chinese host keeps serving me the food.
②I took it for granted that he would believe in us.
③We all thought it a pity that the conference had been cancelled.
④People make it a rule to buy presents for their mothers on Mother's Day.
⑤I don't think it possible to master a foreign language without remembering words.
