1. 副词的比较级和最高级的构成
　　 副词和形容词一样，也有原级、比较级和最高级三个等级。其构成方式有规则变化和
　　不规则变化两种情况。规则变化的一般规律是：单音节词的比较级和最高级在词尾加-er或
　　-est; 多音节词以及-ly结尾的副词（early除外），前面须加more 或most. 不规则的变化式
　　只能采用“各个击破”的办法去记忆。
　　3副词的比较级的用法
　　1）单独使用：
　　Try to do better next time. 下次争取干好一点。
　　I had seen the film only a few days earlier. 我是几天前才看的这部电影。
　　He’ll come back sooner or later. 他迟早会回来的。
　　Please speak more slowly. 请讲慢一点。
　　I determined not to travel farther that night. 我决定那天晚上不再往前走了。
　　2）和than一起使用：
　　He swims better than I do. 他游泳游得比我好。
　　He works less than he used to. 他工作的时间比以前少了。
　　Can you do any better than that? 你能不能干的好一些？
　　He arrived earlier than usual. 他到的比平时早。
　　He studied the subject further than I do. 这问题他研究得比我深。
　　3） 比较级前可有状语修饰：
　　You must work much faster. 你必须大大加快干活的速度。
　　He walked no further. 他没在往前走。
　　She could dance even more gracefully than a dancer. 她能比舞蹈演员跳的更美。
　　Helen came late, but her sister came still later. 海伦来晚了， 而她妹妹来得更晚。
　　Can you come over a bit more quickly? 你能稍稍快点来吗？
　　4. as…as和not so…as结构
　　这两个结构也可结合副词使用：
　　1） as…as 可用在肯定句中，表示 “像…一样”，后面的副词要用原级：
　　 She can run as fast as a deer. 她能跑的像鹿一样快。
　　 They work as hard as you do. 他们工作像你一样努力。
　　 I hate him as much as you do. 我像你一样恨他。
　　 I’ll be round as quick as I can. 我将尽快过来。
　　2）在否定句中，as…as和so…as都可以用：
　　 I don’t go there as much as I used. 我现在到那里不象过去那么多了。
　　 I didn’t do as(so) well as I should. 我做的不如我应做的那么好。
　　 I can’t jump so(as)loudly as Bill. 我跳高不如比尔。
　　 I don’t like it so (as) your other works. 我喜欢它不及你的其他作品。
　　3）这种句子中也可以有一个表示程度的状语：
　　 I don’t speak half as (so) well as you. 我讲的不及你的一半好。
　　 She can read twice as fast as he does. 她阅读的速度比他快一倍。
　　The substance reacts three times as fast as the other one. 这种物质的反应速度是另一种物质的三倍。
副词最高级可修饰动词，前面多数不带定冠词the:
　　He laughs best who laughs last. (谚语) 谁笑在最后谁笑的最好。
　　Of the four of us, I sang (the) worst. 我们四人中我唱的最差。
　　Of these sports, I like rowing most. 这些运动中我最喜欢划船。
　　He went (the) farthest of the explorers. 这些探险家中他走的最远。
　　He likes painting best of all. 他最喜欢绘画。
　　Who arrived (the) earliest of all? 谁到的最早？
　　She behaved most generously. 她表现的最大方。
　　6. 副词比较级和最高级的一些特殊用法
　　副词比较级和最高级还可用在一些特别结构或短语中：
　　1）more and more 越来越…:
　　It rained more and more heavily. 雨下得越来越大了。
　　In need, she liked him more and more. 的确她越来越喜欢他了。
　　She went farther and farther away. 她越走越远了。
　　2）the more…the more 越…，越…：
　　The more I work, the more I accomplish. 我干得越多，完成的就越多。
　　The more I thought, the more extraordinary did it appear. 我越想，这事就越显得离奇。
3）had better 最好：
　　We’d better not disturb him. 我们最好不要打扰他。
　　What had we better do? 我们最好怎么办？
　　I think I’d better be going. 我想我最好还是走。
　　（Had）better not wait for them. 最好别等他们了。
　　4）Know better than (to) do something. 懂得不宜做某事：
　　You ought to know better than to go out without an overcoat on such a cold day?
　　你应当懂得这样冷的天气不穿大衣出去可不行。
　　You ought to know better than stay away from school. 你该知道不应当逃学。
　　He knew better than to mention this to her. 他知道不宜向她提及此事。
　　5）think better (of) 改变主意，决定不这样做：
　　 He was going to leave school, but later he thought better of it.
　　他打算退学，但后来改变了主意。
　　 He used to be a radical and has thought better of it.
　　他以前是个激进分子，后来改变了看法。
　　He was going to answer me back, but he thought better of it.
　　他本来想和我顶嘴的，但没有这样做。
　　6）had best 最好：
　　I had best fax them our plans. 我最好把我们的计划传真给他们。
　　I had best have your opinions first. 我最好先听听你的意见。
　　We had best get home before midnight. 我们最好午夜以前到家。