which /witʃ/ I. pron.哪一个，哪些 ①作疑问代词引导疑问句或连接代词引导名词性从句和不定式：Which are our seats? 哪几个是我们的位子? Ask him which he wants. 问他喜欢哪一个。 I didn’t know which to choose.我不知道该挑哪个。②作关系代词引出定语分句(which可作主语、介词或动词宾语或代表整个先行句)：He lives in the house which/that is opposite ours.他住在我们家对面的房子里。But those are the conditions(which/that) we have to ask you to accept. 但那些是我们要求你们接受的条件。The London team, which (［误］that) played so well last season, has done badly this season. 伦敦队尽管上一个赛季踢得不错，这个赛季遭透了。He had only the long nights in which (［误］that)to study.他只有利用长夜学习。［考句］ Helen was much kinder to her youngest child than she was to the others, which, of course, made the others jealous.海伦对最小的孩子比对别的孩子温和的多，这当然使别的孩子妒忌。［考句］A survey was carried out on the death rate of new-born babies in that region, the results of which were surprising. 在那个地区进行了一次关于出生婴儿死亡率的调查，结果令人吃惊。‖II. adj. 哪个(些)：At which station should I change trains? 我该在哪个车站换火车? Which university did you go to, Oxford or Cambridge? 你上哪一所大学，牛津还是剑桥?
whichever /witʃˈevə/ I. pron. 1.无论哪个，无论哪些：Take two of the four elective subjects, whichever you prefer. 四门选修科中挑两门，由你喜欢。‖II. adj. 无论哪个，无论哪些：He may choose whichever desk he wishes. 他要挑哪张书桌就哪张。
