always，often，hardly ever，never，sometimes等頻度副詞的辨析。
（1）She
always
always
gets up at six o'clock.
（2）He
often
often
gets up at six o'clock，but today he got up at six thirty.
（3）Some of my friends exercise every day and
hardly ever
hardly ever
eat junk food，but the others eat junk food every day.
（4）I can't swim.So I
never
never
go to the beach to swim.
（5）I
sometimes
sometimes
go to the dentist for teeth cleaning，but usually I brush my teeth in the morning.
