Grammar
一.形容词和副词比  较等级使用方法
1）原级比较：表示二者程度相同。用句型as+形容词/副词+as表示，否定名式为：not as/so+形容词/副词as。 如：
Dick is as tall as his brother.Tom speaks as quickly as his cousin. I have never seen a person as / so clever as he is.