找用it开头的不同句型?老师突然要我一个人想,真的是不知道怎么想的?什么强调句,形式主语,形式宾语之...

强调句：It is you that make me feei happy. it强调主语you,强调句就是把it is...that去掉也可以是句子通顺的句子
形式主语；It takes me about 10 minutes to go there on foot. it做形式主语代替go there on foot
形式宾语：He feels it his duty to help others.
It 代替不定式短语时：（像楼上的一种形式）
1. He feels it his duty to help others.
（他觉得帮助他人是他的责任.）
2. The new medicine makes it possible to treat this terrible disease.
（这种新药使治疗这种可怕疾病成为可能.）
It 代替动名词短语时：
1. We thought it no use doing that.
（我们认为那样做无济于事.）
2. Our teacher thinks it no good learning without practice.
（我们的老师认识光学不实践是没有好处的.）
It 代替宾语从句时：
1. I think it very important that we take part in the discussion.
（我认为我们参加这次讨论是很重要的.)
2. Didn't I make it clear to you that I was not coming?
( 我不是向你明确表示过我不来了吗?）