1.频率副词是表示与次数,频率有关的副词,如:

always(总是), usually(通常),frequently（经常） often （经常）sometimes(有时), seldom(不常),rarely（很少），never（从不） once(一次), twice(两次)，等。

2.频率副词等级 :

never

rarely

seldom

sometimes

often

usually

always

3.频率副词用在be动词后。

He is always late for class.

他总是迟到。

4.频率副词用在主要动词前。

My father usually walks home.

我的父亲经常步行回家。

5.频率副词用在助动词与实义动词之间。

I will always love you.

我将永远爱你。

6.频率副词用在ought to之间。

You ought often to write to your mother.

你应该常给你母亲写信。

7.在答句中,频率副词必须放在助动词前。

Do you often go there"para" label-module="para">

你常去那里吗"para" label-module="para">

(误)Yes, I do often.

是的,我常去。

(正)Yes, I often do.

是的,我常去。

8.never(从不), seldom(很少,不常)用于句首时,句子要用倒装形式以加强语气。

Never have I been there.

我从未去过那里。

Seldom do I watch TV.

我很少看电视。

9.sometimes(有时）和usually（通常）可以放在句前和句末。

Sometimes I go to school by bus.

我有时坐公交车上学。

I go to school by bike usually.

我通常骑车上学。