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Whose is this book?为什么不用Who?Who is your brother?为何不用Whose?两句

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Whose is this book?为什么不用Who?Who is your brother?为何不用Whose?两句区别,
Whose is this book?为什么不用Who?Who is your brother?为何不用Whose?两句
首先弄清楚who和whose的意思,who→谁;whose→谁的;1.从语义上来看:Whose is this book?→这本书是谁的?若用who,则意思就变成这本书是谁?不符合逻辑;Who is your brother?→你哥哥/弟弟是谁?若用whose,则意思就变成你哥哥/弟弟是谁的?显然说不通.2.从语法来看:who与whose都是疑问代词,用来构成特殊疑问句.who的意思是“谁”,问的是姓名或某人的关系.如:—Who is he —He is John .(问姓名) 他是谁?他是约翰.—Who is she —She is our teacher.(问关系) 她是谁?她是我们的老师.当用who提问,不知道是谁和人的数量时,问句的谓语动词常用单数.如:Who isn't at school today?今天谁没到校?whose一般是就物主代词或名词所有格提问.1)提问部分作定语时,用“Whose +名词+一般疑问句?”结构.如:It's my shirt.→Whose shirt is it?这是我的衬衫.→这是谁的衬衫?2)提问部分作表语时,用“Whose +一般疑问句?”结构.如:The shirt is mine. →Whose is the shirt?这件衬衫是我的.→这件衬衫是谁的?