. 用作副词 篇一
不管however以何种形式出现在大学联考题中，它都不外乎以下两种用法。
用法详解 篇二
1、You should try to get a good night’s sleep _____ much work you have to do.
A. however B. no matter C. although D. whatever
【分析】答案选A。however作连接副词时，与no matter how相当，后接形容词或副词，意为“无论……”“不管……”。句意是：不管你有多少工作要做，你都应该好好休息一个晚上。
2、He tried his best to solve the problem, _____ difficult it was.
A. howe【】ver B. no matter C. whatever D. although
【分析】答案选A。因difficult是形容词，修饰形容词要用连接副词however（无论如何，不管多么），引导一个让步状语从句。