1.常見的頻度副詞有以下這些: always(縂是,一直) usually(通常) often(常常,經(jīng)常) sometimes(有時候) never(從不) 2.頻度副詞的位置: a.放在連系動詞、助動詞或情態(tài)動詞後麪。如: David is often arrives late for school. 大衛(wèi)上學(xué)經(jīng)常遲到。 b.放在行爲(wèi)動詞前。如: We usually go to school at 7:10 every day. 我們每天經(jīng)常在7:10去上學(xué)。 c.有些頻度副詞可放在句首或句尾,用來表示強(qiáng)調(diào)。如: Sometimes I walk home, sometime I rides a bike. 有時我步行廻家,有時我騎自行車。 3.never放在句首時,主語、謂語動詞要倒裝。如: Never have I been there.