频度副词表示动作发生的次数,常见有的once,ever, rarely, seldom, often, constantly,never, frequently, usually, continually,occasionally,always 等。
频度副词通常位于实意动词之前,动词be、助动词、情态动词之后。如:
He is seldom late for school. 他上学很少迟到。
He often comes to see us. 他常来看我们。
有时为了强调,频度副词也可位于动词be、助动词等之前。如:
She always was late. 她老是迟到。
有的频度副词可位于句末(尤其受very, only修饰时)。如:
I get paid on Fridays usually. 我通常在星期五领工资。
Do you go to the cinema very often? 你常去看电影吗?
We go out very seldom. 我们很少外出。
有的频度副词(如sometimes, often, usually, frequently, occasionally等)可位于句首(此时多半是因为强调或对比)。如:
Sometimes he went there by bus. 有时他坐公共汽车去那儿。
Very often the phone rings when I’m in the bath. 电话经常在我洗澡时响。
注:含有否定意义的频度副词置于句首时,其后要用倒装语序。如:
Never have I been there. 我从未去过那儿。
Seldom does he see a film. 他很少看电影。
另外,频度副词always 和 never通常不位于句首,除非是祈使句:
Never go out at night. 晚上千万不要出去。
Always remember this. 时刻记住这一点。
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