年夜学英语测验作文教诲五
五、含有it的构造考抱病句：1. As is known to all of us that science and technology play an important role in the development of society. 2. It is known to us， practice makes perfect.准确表达：1. It is known to all of us that science and technology play an important role in the development of society.（或：As is known to all of us， science……）
2. It is known to us that practice makes perfect.（或：As is known to us， practice……）
评议与申明：例句1是93年12月六级测验11分作文的评分样卷句子，例句2选自97年1月四级测验作文。很显然，两个考生混同了it和as的用法。如果用it作形式主语，背面的主语从句必需由that惹起；如果用as，则背面不能用that，因为as是干系代词，代表practice makes perfect. It在英语中是个相称活泼的代词，在写作中我们常要利用它。以下几种用法应纯熟掌握，并能灵活运用。
1.作形式主语It is necessary for us to master a foreign language skillfully. It makes difference whether we could purify the air or not. 2.作形式宾语We find it rather difficult to prevent people from doing that. Modern science has made it possible for babies to grow healthily and for people to live longer. 3.指导夸张句It is only by this way that we can achieve success. It was then that people began to realize the importance of controlling population.从语法构造来看，上述的句子都不难，大概可以说是考生相称认识的。但是在写作测验中，年夜都考生缺乏运用自己已掌握的句式的认识，而以自己脑筋中拼集的中式英语取而代之。实在，只需能恰外埠运用上述的任何一个句式，考生的作文就会出现闪光点，就会获得比较好的成绩。