1 . it 指代前面所提到过的事情、事物;婴儿或身份不明的人,未指明但谈话双方都明白的事情或情况。—I've broken a plate.—It ( = Breaking the plate) doesn't matter.( 指前面所提到过的事情 )—— 我打碎了个盘子。—— 没关系。The Parkers bought a new house but it will need a lot of work before they can move in.( 指双方都明白的事情 )帕克一家买了一套新房子,但是在入住之前有大量的工作需要去做。Look at the baby. Isn't it lovely ? ( 指人们对其性别还不太在意的婴儿 )看那个小婴儿,它不可爱吗?2 . it 用作形式主语或形式宾语,而把真正的主语或宾语放在后面,真正的主语或宾语往往由从句、动名词、不定式充当。We feel it our duty to make our country a better place.( 摘自 2011 天津高考 )我们觉得让我们的国家成为一个更加美好的地方是我们的责任。It worries me that he keeps changing his mind.他不断改变主意使我担心。He didn't make it clear when and where the meeting would be held.他没有把何时何地召开会议搞清楚。As far as I'm concerned, it's no use arguing with him.He won't change his mind.就我个人而言,同他争论没用,他不会改变主意。3 .有些动词或动词+介词后面接 it ,再加从句,构成固定结构。这类动词或动词+介词有 enjoy, prefer, love, like, hate, dislike, appreciate, have, take, put, help, see to, rely on 等。I dislike it when I am left alone to start a conversation with a stranger.我不喜欢被留下来独自一人与陌生人交谈。They would appreciate it, to be frank, if the goods could be delivered as soon as possible.坦率地说,如果货物尽快被送到,他们会感激不尽。How can I help it if people don't read the instructions?如果人们不看说明,我有什么办法呢?1 . (2011· 山东高考 )The two girls are so alike that strangers find ________ difficult to tell one from the other.A . it B . themC . her D . that解析:考查代词的用法。句意:这两个女孩长得如此相似以至于陌生人很难把她们区分开来。在 that 引导的结果状语从句中,谓语动词...