It作形式主语和形式宾语的用法

It作形式主语和形式宾语的用法

一、it作形式主语

1.不定式作真正主语常用句式归纳：

It is no use/good/need/help doing…做……没用处/没好处/没必要/没帮助； It is great fun doing做……非常有趣；It is a waste of time/money doing 做……简直是浪费时间/金钱的

2.that从句作真正主语常用句式归纳：

1）it+be+过去分词+that…

It is argued that…大家争论……；It is assumed that…假定……；

It is believed that…大家相信……； It is agreed that…大家同意……； It is hoped that…大家希望……；It is (well) known that…家喻户晓……； It is reported that…据报道……；It is recommended that…据推荐……； It is rumored that…谣传……； It is said that…据说……；

It is suggested that…有人建议……； It is supposed that…大家推测……； It is thought that…大家认为……；

It is taken for granted that………被视为当然

It must be remembered that…务必记住……；

It has been decided that…大家决定……。

2)it+be+形容词+that…

It is clear/obvious that……很明显；It is important that…重要的是……；It is surprising that…令人惊讶的是…；It is necessary that……有必要；It is strange that………很奇怪；It is likely/possible that……很可能。3）It is a good thing/ news/a fact that………是好事情/好消息；事实是……。

4）It seems/appears that…好像是……；It turns out that…结果是……； It happened that…碰巧是……；It occurs to me that…我想到……

It strikes me most that…令我印象深刻的是……；

二、It 作形式宾语

1）常用句式归纳：

主语+believe/guess/suppose/think/feel/find/discover/

notice/make/consider…+it+宾补（a.）+真正主语（to do/从句）

eg: George made it clear that he disagreed.

2)特殊句式：

see to it that…注意……；

eg：See to it that the windows are shut before you leave.

owe it to…that…把……归功于……；

take it for granted that…认为……理所当然。

3)带it 的习语：

That’s it! 这就对了。

I can’t help it. 我没办法。

You will catch it. 你会受罚的。

We must fight it out. 我们必须战斗到底。

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