whether /ˈweðə/ conj. 1.是不是,是否 引起宾语从句(一般可用if替换,但在从句提前或作介词的宾语从句时,只能用whether): I don’t know whether/if you like flowers (or not), sir. 我不知道你是不是喜欢花,先生。Whether (if) it is a defect or not I don’t quite know.是不是一个欠缺,我不知道。 I worry about whether (if) I hurt her feeling.我担心是不是伤害了她的感情。 引起名词性从句(不能用if替换)Whether it will do us harm or good remains to be seen.究竟此事对我们有害还是有利,还要等着瞧。His first question was whether Holmes had arrived yet.他的第一个问题是霍姆斯来了没有。All the time she was in bitter doubt whether she was right. 她对她是否正确一直有怀疑,心里十分痛苦。引起从句跟在not sure/certain, doubtful 等后面(不能用if替换)He wasn’t sure whether he ought to laugh or cry. 他不知道自己是该笑还是该哭。引起不定式短语(不能用if替换)I don’t know whether to accept or refuse.我不知道是接受还是拒绝。 2.不管是否,不管是还是(引起状语) I’ll do it whether you like it or not. 不管你喜欢与否,我是要做这件事的。We’ll take the next offer, whether good or bad.不管好坏,我们将接受下一个提议。