第1个回答 2014-09-15
频度副词（ Adverbs of Frequency ）表示动作发生或状态存在的频繁程度。这类副词（词组）中，有的所表示的频度很明确，例如： once, twice, three times a day, every week, every other day 等；有的所表示的频度比较含糊，例如： often, usually, always, sometimes, now and then 等。
1 ． Never(0) 从来都不，决不。该词位于句首时，句子的主谓语要倒装。例如： Never have I met such a strange man. （我从没见过这样奇怪的人。）
2 ． at no time (0) 从不，任何时候都不（ =not at any time ）。该词组置于句首时，句子的主谓语要倒装。例如：
At no time has he said such words. （他在任何时候都没有说过这种话。）
3 ． seldom/rarely(5%) 很少，难得。这两个词均有否定意思，置于句首时，句子的主谓语要倒装。例如：
My family seldom go to the movies. （我们家很少去看电影。）
Seldom/Rarely does she eat breakfast on workdays. （工作日期间她几乎不吃早餐。）
4 ． hardly ever (5%) 几乎不，难得（ =almost never ）。例如：
I hardly ever see her nowadays. （近来我很少见到她。）
5 ． once in a while (5%) 偶尔，有时，间或。例如：
I went to see him once in a while. （我偶尔去看他。）
6 ． from time to time (10%) 时常，有时。例如：
He dropped in on me from time to time. （他有时顺便来看我。）
7 ． sometimes (20%) 有时。例如：
On weekends sometimes we stay at home, and we visit our friends sometimes. （周末我们有时在家，有时去会朋友。）
8 ． at times (20%) 有时，偶尔。 例如：
I do feel a little nervous at times. （我有时的确感到有点紧张。）
9 ． now and then (20%) 时而，不时。该词组前面有时可与 every 连用。例如：
He raised his eyes every now and then while reading. （他看书时不时地抬起头来歇歇眼睛。）
10 ． as often as not (50%) 往往。例如：
As often as not the buses are late on foggy days. ( 每遇多雾天气，公交车往往晚点。 )
11 ． more often than not (55%) 多半。例如：
More often than not they help us. （他们经常帮助我们。）
12 ． constantly (60%) 时常，不断地。例如：
The teacher is constantly asked for explanation of the text by his students. （学生们不断地要老师讲解课文。）
13 ． frequently (60-70%) 时常，频繁地。该词强调一段时间内动作发生的频繁程度。例如：
Advertisements appear frequently on the TV screens. （电视屏幕上广告频频出现。）
14 ． often (60-70%) 经常。强调习惯性，有时相当于 very frequently 。其反义词为 seldom 。例如：
My grandma often says, “I love books. They give me knowledge and make me happy.” （奶奶常说，“我喜欢书，书给我知识，使我快乐。”）
15 ． usually (80%) 通常。例如：
What time do you usually get up on Sundays? （你周日通常几点起床？）
16 ． almost always (90%) 几乎总是。例如：
Those who are almost always thinking of others should be the more, the better. （几乎总是为别人着想的人越多越好。）
17 ． always (100%) 总是。其反义词是 never 。 例如：
No matter what the weather is like, you can always find surfers out riding the waves. （无论天气怎样，你总是可以看到冲浪运动员外出冲浪。）
18 ． all the time (100%) 始终；一直；在全部时间内。例如：
Our knowledge of the universe is growing all the time. （人类对宇宙的认识一直在增加。）