1.程度副词：常见的有much, (a)little, a bit, very, so, too, enough, quite, rather, pretty, fairly, extremely, considerably, entirely, greatly, completely, awfully, terribly, definitely, perfectly, amazingly, deeply, immensely, barely, almost, hardly, scarcely, partly, half, slightly, not at all等。这类副词多数都用来修饰形容词(a)或副词(b)：
a.His pronunciation is very (quite，rather，pretty，fairly) good.
He has been extremely (awfully，terribly) busy these days.
b.She sings quite (pretty，extremely，not at a11) well.
He works terribly (awfully，quite，very) hard.
Thank you very much.
I can hardly agree with you.
How are you doing at school?
Where shall we stay for the night?
When shall we meet again?
Why are you so worried?
How long have you been there?
How soon is she coming back?
How often do you meet?
When she'll be back depends on the weather.
It was a mystery how she got well so soon.
They didn't say where they were to stay.
Nobody can tell why he refused to come.
That was how they overcame the difficulty.
That's why I don't agree with you.