16． it作主语的用法: 1)it用作代词 ①指代事物或前面提到过的事物.例如: What’s in the picture?．It's a cat．图画里是什么?是一只猫. It's the wind shaking the door．是风刮得门响. 你曾经给过她许多帮助.她永远也不会忘记. ②指人.例如: Who is it ? It's me. 是谁?是我. ③表示时间或季节.例如: It is seven o'clock now. 现在7点钟. What day is today? It is Friday.今天星期几?今天星期五. What is the date today? It's the third of May.今天几号?今天5月3号. What season is it? It's autumn.现在是什么季节?是秋天. ④表示距离.例如: How far is it from the school to your home? 从学校到你家多远? It is twenty miles from here to the village.从这里到那村庄20英里路. ⑤表示气候.例如: It is cold today. 今天天气冷. What was the weather like yesterday? It was fine. 昨天天气怎样?天气晴朗. It often rains here in summer. 这里夏天时常下雨. ⑥表示情况.例如: How is it going with you ? 你近来情况怎样? Where does it hurt? 哪儿痛? Whose pen is this? It's mine. 这是谁的钢笔?是我的. 2)it用作形式主语 it常用来代替不定式.动名词短语或名词性从句作形式主语.位于句首.而被替代的真正主语后置. ① it + 谓语 + 不定式.例如: It is easy to climb the hill.爬那座小山很容易. It is his duty to settle the problem.解决那个问题是他的责任. It is not proper to do so.这样做不恰当. ② it + 谓语 + 动名词短语.例如: It is no use arguing with him.同他争辩没用. It is no good going there. 到那里去没有用处. It is exciting working here with you.在这里同你一起工作很令人兴奋. ③ it + 谓语 + 名词性从句.例如: It is clear that she is the best student in the class. 很明显.她是班上最好的学生. It's a pity that you can't go with her.你不能同她一块去.真遗憾. It's certain that he will get on well with them. 可以肯定.他会同他们相处得很好. It is said that he is doing fine in school.据说他在学校里表现很好. It doesn't mater whether he comes or not.他来不来都没有关系. 注意:先行词it充当形式主语.构成大量的常用句式.要注意计后谓语不同的形式.并译成通顺的汉语. (1) It is a pity that．．．真可惜--.可惜的是-- It is a fact that．．．事实是-- It is a wonder that...这真是个奇迹 It is no wonder that...难怪-- (2)It is obviousthat．．．很明显--.很清楚-- It is strange that...奇怪的是--.--令人费解 (3) It so happened that...碰巧--.说来也巧-- It follows that...从而--.于是乎--.这样一来-- It seems that...看来-- It appears that...看来--.似乎-- It turned out that... 原来--.结果-- It occurred to me that... 我突然想到-- (4) It was said that...据说-- It was reported that... 据报道-- It is believed that... 据认为.人们认为-- It is universally accepted that... 普遍认为 It was announced that... 据宣布 It is estimated that...据估计 It is to be noted that...值得注意的是-- It must be admitted that...必须承认 It can safely be said that...完全可以说-- It can thus be concluded that...由此可以得出结论-- (5)It doesn’t matter．．． --是无关紧要的 It doesn't need to be bothered that...无须担忧 ．．．．． It makes no difference...--毫无二致 【查看更多】
