It 作形式主语
1)It is +adj./ n. + (for / of sb.) to do sth.
that 从句
It is wrong of you to be late for class.
It is easy for him to lose temper. It is strange that he hasn’t turned up yet. It is a pity that he is not able to join us.
表 逻辑主语 • It is no use reasoning with him.
形 主
系
系 表 逻辑主语 • It depends on the weather whether we will go.
形 主
形 主
谓
宾
逻辑主语
It 作形式主语目的
• 作为形式主语的it并无实际语义，只是为满 足语法上的需要，避免句子头重脚轻，它 代替的是句子的逻辑主语，概括起来会有 如下情况：
4. It seems / appears (to sb.) that…
It seems to me that he doesn’t know anything about it.
5. It happened that
It happened that I had no money on me.
6. It makes no difference / doesn’t matter to sb. + wh-从句 It won’t make much difference to me which side may win or lose. It doesn’t matter to him whether you will put off the meeting. 7. It is said/reported/ believed that…
主语从句------ it作形式主语
阜阳一中 张羽
分析句子找规律
It is not easy to get up so early today. 主 系 表 形式主语
？？？？ 真正主语 （逻辑主语）
(to get up so early today) is not easy.
分析句子找规律
• It is my pleasure to address the meeting.
It seems wise for us not to expect too much of him. It appears all right to tell him everything abouat he will take the place of Mr. Li.
2. It is no good/use/harm doing sth.
It is no use making any complaints about it.
It is no good talking to him.
3. It seems/ appears +adj./n + to do
that 从句
用以上7个句型造句. 1.小男孩提出这样一个愚蠢的问题是很自然的. It is natural for a boy to ask such a silly question.
2. 劝他不要那样做没有什么用. It is no use trying to persuade him not to do that. 3. 熬夜没有什么好处. It is no good sitting up too late.