1.worth更具有介词的语法特征,可支配名词短语,带逻辑主体的动名词和wh-从句,但不能跟主动不定式。
2.worth常用于sth is worth v -ing结构中,动名词短语在这里表示被动意义。sth 有时可换用it,这时it是形式主语,动名词短语是真正主语。
3.worth用作名词时意为“价值”,其前的名词主语如具有复数意义,则应采取复数形式并加上所有格形式'或 's 。
It is certainly worth checking up on your benefit entitlements.
查清楚你可以享受哪些福利是绝对有必要的`。
By the time he's twenty he'll know everyone worth knowing in Washington.
到20岁时，他就会认识华盛顿所有值得认识的人。
Any coach worth his salt would do exactly as I did.
任何称职的教练都会采取和我一模一样的行动。
4. be worth + n.当名词为金钱时，表示"…… 值得……"
be worth doing sth."……某事值得被做"
be worth-while to do sth "值得做某事"