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"