as是英语中用得非常广泛而且极其活跃的一个词。它可以作介词、副词、连词和关系代词,还可以同其他的词搭配,构成一些固定的词组和句型,表达多种意思。本文仅对as构成的一些常用句型进行归纳。一、状语从句中的as1.时间状语从句as引导时间状语从句,表示主句动作和从句动作同时发生,可译为“随着”“一边……一边……”“当……时候”。如:She was reading something as she was waiting for the bus to come. As is a very widely used and extremely active word in English. It can be used as prepositions, adverbs, conjunctions and relation pronouns, but also with other words to form a number of fixed phrases and sentence patterns, to express a variety of meanings. This article only summarizes some of the commonly used as sentences. First, the adverbial clause in the as1. Time adverbial clause as the leading time adverbial clause, indicating that the main sentence and clause actions occur at the same time, can be translated as “with ” “side ... ... while ... ” “when ... …time”. Such as: She was reading something as she was waiting for the bus to come.