以 –ly 结尾的形容词
在通常情况下，形容词后加词尾-ly便构成副词，但是 friendly, deadly, lovely, lonely, likely, lively, brotherly 等虽带有词尾-ly，但它们却是形容词。如：
The garden looks lovely when the roses are in bloom. 玫瑰花开时园内美丽诱人。
His friendly behavior was a cloak for his evil intentions. 他友好的行为是为了他罪恶的意图打掩护。
Hers is a lonely life. 她的生活很寂寞。
Asiatic cholera is a deadly disease. 亚洲霍乱乃致死之病。
他待我们很友好。
误：He treated us friendly.
正：He treated us in a friendly way.
注：有些以-ly 结尾既为形容词，也为副词，如daily, weekly, monthly, yearly, early等。如：
We benefit from daily exercises. 我们得益于每天做操。
My father goes for a walk daily. 我父亲每天散步。