定语从句中何时能用介词+which代替when,where,whose,why??答:在定语从句中 1、关系代词:who, whom, which, that, whose 指人:who, whom, whose, that 指物:which, that,whose 2、关系副词:when,where,why ★当从句的句子完整时,用关系副词;当从句的句子不完整时,用关系代词。(关系代词+介词in/on/at/of等=关系副词)作主语,先行词是人用who/...
when,if,that,why,what的用法和区别答:连接词:that,whether,if (不充当从句的任何成分) 连接代词:what, whatever, who, whoever, whom, whose, which. 连接副词:when, where, how, why 不可省略的连词: 1. 介词后的连词 2. 引导主语从句和同位语从句的连词不可省略。That she was chosen made us very happy.We heard the news that ...