work on/work at1、work on/work atwork on 与 work at 可通用,表示“忙于……”
但在 work on sth
中,sth 是 work 的具体对象;而在 work at sth
只说明所从事工作的性质,即时间、精力用在某一方面的事情上,而不在于说明正在做什么
如:He is working on/ at a novel
他正在专心写一部小说
They have worked at this subject for many years
他们从事这项课题的研究已经好多年了
Bob worked hard on organizing other singers to sing for him for free
鲍勃积极地组织其他歌唱家为他义务演唱
work out 算出;解决①Can you work out how much money it will need
你能算出需多少钱吗
②I’ve worked out the problem
我已解决了这个问题
2、take sides(in) 袒护;站在……一边①They took the side of their child
他们袒护自己的孩子
②She has taken sides in the quarrel
她参与了争吵
3、worth/worthy两者均是形容词,意思是“值得……的”,用法如下:(1)worthy 可以作定语,worth 不能
例如:a worthy rival 值得较量的对手(2)worth 后面直接跟名词(多为表示钱或代价的名词),其作用相当于介词;worthy 后面接名词时须与 of 连用(一般不接表示钱的名词)
例如:This second-hand book is worth 100 dollars