一、 写作五大高分表达 1. 形式主语和形式宾语 （1）形式主语
It be+形容词+to do/doing/that It is wrong to tell a lie. 说谎时错误的 It is uncertain who will come. 谁要来还不确定 It is useless arguing about it. 争吵是没用的
It be +名词词组+doing/that It is a pity that you didn’t go to see the film yesterday 你昨天没看成那部电影真遗憾 It is no good telling lies. 说谎没好处
It be+过去分词+that 常见动词：say hope think suppose report know believe It is almost known that smoking is harmful to people’health.众所周知，吸烟有害健康 It is believed that the bad situation will finally be improved. 大家都相信这种恶劣的情况终将会改善
形式主语写作参考列句：
It is widely acknowledged that people’s dresses have been greatly improved in recent years. 众所周知，人们的服装在近几年有了很大的改善。
Furthermore ,it is obvious that the strength of country’s economy is directly bound up with the efficiency of its agriculture and industry.
而且，显而易见的是一个国家经济实力与其农业和工业生产效率密切相关。
It is +necessary/important/possible+for sb.+to do...
对某人（我们、学生、政府）做某事是必要的/重要的/紧要的/可能的 It may be beneficial/instrumental pose such a suggestion(that...)
提出这样一个建议也许是有益的/有帮助的 It’s not difficult to explain this phenomenon. 解释这个现象并不困难。
（2）形式宾语 形式宾语参考列句 Keep it in mind that lazinesss leads to failure. 要牢记懒惰使人失败 Most children take it for granted that parents should give them much money to use.大多数孩子都认为，父母给他们很多钱用是理所应当的
I don’t feel it difficult to work out this math problem 我觉得接着道数学题没那么难 The Internet is developing fast,which makes it possible for people shop online 网络的快速发展使得人们在线购物成为可能
You may depend on it that we shall always help you 尽管放心，我们会随时帮您 He insisted on it that he was right 他坚持说自己是正确的