which和whether的区别？whether是wh词吗？

那两者的意思用法纷歧样。which的意思是哪一个。可引导非限造性定语从句，可间接放在介词后做宾语。which在问句中做为疑问代词，在名词从句中做为毗连代词用。例：It was difficult for the inspectors to discoverwhich documents were important and which were not. 查抄员们难以发现哪些文件重要，哪些不重要。

whether凡是暗示暗示游移或两个可能性之间的抉择，暗示能否，可引导主语从句，表语从句，或同位语从句。例：I asked whether they could change my ticket. 我问他们能否能够给我换票。

whether能够看成“wh-疑问词”之一,跟what等等的用法大致上是一样的,只不外whether的意思是“能否”。表达疑问语气，只起引导感化，不在从句里充任成分。