when,if,that,why,what的用法和区别答:1)由wh-词引导的名词从句叫做名词性wh-从句。Wh-词包括who, whom, whose, whoever, what, whatever, which, whichever等连接代词和where, when, how, why等连接副词。Wh-从句的语法功能除了和that-从句一样外,还可充当介词宾语、宾语补语和间接宾语等,例如: 主语: How the book will sell depends on its ...
疑问副词和疑问代词的区别答:从文中作用上区分 (1)疑问副词用来引导特殊疑问句,表示时间,地点,方式,原因等,常见的有:when,where,how,why等。(2)疑问代词在句中起名词词组的作用,用来构成疑问句。疑问代词有下列几个:what,who,whose,whom,which,when,whatever,whichever,whoever,whomever。从句中位置上区分 (1)疑问...