Simoneas as用法如下：
1、基本用法
中间只能用形容词或副词的原级，不散码能用比较级或最高级。如果在第二个as之后使用独立的人称代词一般说来用主格（较正式）或宾格（非正式）均可。如：He’s as old as she herl.他年纪跟她一样大。
但是，若第二个as之后的人称代词跟有谓语仿掘搏动词，则该人称代词只能用主格。如：He is as old as she is。
2、用于否定句
在肯定何中用as...as，在否定何中用not as...as或not so...as均可。如：He doesn’t study as [so] hard as his brother.他学习不如他弟弟努力。
3、关于比较对象
使用该结构要注意比较对象的一致性，即比较的双方必须是可以比较的同类人或物，否则会出错你的房间与我的一样大。E:Your room is as large as mine.F:Your room is as large as me。
4、涉及数量或程度
如果涉备祥及数量或程度可用：as much+（不可数名+）as /as many+（可数名词复数+）as。如:You must speak English as much as possible.你必须尽可能地多说英语You’ve made as many mistakes as I have.你犯的错误和我犯的一样多。
5、注意下列结构的词序
她和她妈妈一样是位好厨师。E:She is a cook as good as her mother.E:She is as good a cook as her mother。
