问题描述： as有哪些用法,在句子中能作什么成分,能引导什么从句?希望不要完全复制 1个回答 分类：英语 2014-09-30 问题解答： 我来补答 1 as 可引导定语从句,作主语或宾语,指代整个句子,常位于句首,如：As is know to all, the sun rises in the east.2 as 可引导时间状语从,意思是“随时.",如：As he goes older, he knows more things.3 as 可引导原因状语从句,意思是“由于/既然.”,如：I needn't tell you the answer again as you already know it. 展开全文阅读
