人教实验版高二 Module 6Unit 3Grammar广东 黄玲教学 it 的用法教学 it 的用法1.做形式主语 It 可以用作先行词作为句子的主语 ,而把句子的真正主语移到后面去 , 可以移到后面的主语是： 1) 不定式 句子的谓语可以是 be + 形容词；e.g. It is important to know your limitations. 知道自己的局限性是很重要的。be+ 名词；e.g. It is a good idea to have a little notebook handy. 手边有个小笔记本是个好主意。be+ 介词短语；e.g. It is against the law to do that. 这样做是违法的。其他类型的谓语e.g. It gives me great pleasure to see the movie. 观看电影让我很高兴。2) 动名词用 no good, no use, great fun, a new experience 等名词作表语；e.g. It is fun working for him. 为他工作很有意思。也可用某些形容词作表语；e.g. Do you think it is worthwhile quarrelling with him ？ 你认为和他吵值得吗？一些其他的谓语形式。e.g. Does it matter wasting a little money? 稍微浪费一点钱行吗？3) 主语从句可以是 that 引导的；e.g. It is strange that it hasn’t been noticed before. 真奇怪 , 它以前没有引起注意。 It is a wonder that he is still alive. 他居然还活着 , 真是个奇迹。 It happened that the harvest was bad that year. 碰巧 , 那年的收成不好。It is said that there has an earthquake in Japan. 据说日本发生了地震。 也可能是 wh- 词引导的e.g. It is still a question how many people are to come. 多少个人会来 , 还是个问题。 It is no business of yours where I spend my summer. 我在哪儿过夏天 , 这不关你的事。It remains to be seen whether it will do us harm or good. 对我们有好处还是有害处 , 还要等着瞧。It was clear enough what he meant. 他的意思很清楚。 当复合宾语中的宾语是不定式、动名词、宾语从句时 , 往往把宾语放在它的补足语后面 , 而用 it 作形式宾语 , 放在宾语补足语之前。e.g. I think it no use arguing with him. 我认为和他争吵没有用。2. 作形式宾语。I found it very interesting to study English. 我发...
