初中宾语从句 where which that who whom

1.who whom
who在从句中可以作主语或宾语，whom只能作宾语。
eg.1.the girl who（作主语）came this morning was my sister.
2.the girl who/whom（作宾语）you met this morning was my sister.

*介词后只能加whom,如 to whom(是介词后紧跟，中按没有别的词）
eg.The girl to whom you talked this morning was my sister.

2.which 一般指代物,或主句的整个内容 that 可指代人或物
前面有介词时只能用which.
eg.1.This is the cafe in which I first met him.
2.this is the cafe that I first met him in.

*.1.前面有逗号时，后面不能用that（指紧跟逗号），只能用which.
eg.He drove too fast,which was danderous.
2.先行词是不定代词，主句中有序数词，先行词由theonly, the same, the last 等修饰时，先行词是两个或是两个以上的词，分别表示人和物时，或主句是who,which等开头的特殊以文具，以及先行词被形容词最高级修饰时，都只能使用that.

3.where
where是一个副词，所以用了where,就不需要使用介词。
eg.1.This is the city where I live.
2.This is the city which I live in.
3.This is the city in which I live.

我讲得挺乱的，不知道你看得懂么？

一. 宾语从句的种类
宾语从句是一种名词性从句，在句中作及物动词的宾语，或介词的宾语，或
形容词的宾语。根据引导宾语从句的不同连词，宾语从句可分为三类。