It作形式主语和形式宾语的用法.doc

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+thatIt 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 tothat把归功于；take it for granted that认为理所当然。3)带it 的习语： Thats it! 这就对了。 I cant help