副詞的種類：
1) 時間副詞：常見的有now, then, soon, ago, recently, lately, later, before, early, today, tomorrow, yesterday, tonight, suddenly, immediately, still, already, just等.
(2) 地點副詞：常見的有here, there, up, down, away, nearby, home, ahead, abroad, indoors, overseas, upstairs, downstairs等。
(3) 方式副詞：表示行為方式的副詞大多以-ly結尾，常見的有quietly, heavily, warmly, carefully, happily, politely, angrily等。
(4) 頻度副詞：常見的有always, usually, often, frequently, constantly, occasionally, sometimes, seldom, hardly, rarely, never等。
(5) 程度副詞：常見的有fairly, pretty, rather, quite, very, much, too, greatly, almost, nearly, half, highly, deeply, partly, perfectly, really等。
(6) 連接副詞：這類副詞有相當於並列連詞的therefore, besides, otherwise, however, moreover, furthermore, still, thus, meanwhile等，
(7) 關系副詞：就是引導定語從句的when, where, why等。
(8) 疑問副詞：就是用於引出特殊疑問句的when, where, why, how等。