本文出自：环雅SAT谢文斌老师

云程万里，沧桑几何，无数烤鸭都在SAT的路途上艰难跋涉，其实只要注意一些基础知识的把握，以及对很多常见语言结构的更深入认识，会巨大地减少对北美SAT考试的理解障碍，今天我们探讨下as ...as 的用法。

例：Rip looked, and beheld a precise counterpart of himself as he went up the mountain:apparently as lazy , and certainly as ragged.

很多学生看完这个句子一片茫然，前半部分还好理解，大意为：Rip瞧了瞧，清楚地看见了当时他上山时的样子,但是后半部分apparently as lazy , and certainly as ragged读来很是奇怪，应该怎么理解呢？

这个句子出自于美国著名小说家Washington Irving的Rip Van Winkle，这里其实是as....as的省略结构，根据相关的语法该结构在一定的上下文中可以省略(即省去其中的一个as，使文章更加简练），但是我们平常教学中却很少涉及。由此我们根据上下文发现实际表达为apparently as lazy as he had been , and certainly as ragged as he had been,这样上下文意思就很清楚了，即后整个句子的意思为：Rip瞧了瞧，清楚地看见了当时他上山时的样子:很显然和过去一样懒散和衣衫褴褛。类似省略现实中很多，在经济学人杂志文章中频繁出现

再如：It also means less crowding, and you don’t have wait as long to get your food.

再看一个选于SAT阅读的句子

Walking by the city’s newer buildings, the pedestrian is now as likely to be ambushed by a car sliding from some underground garage as to be visually assaulted by gap toothed parking lots and eerie garage facades.