英语理解.从句.

问题描述:

英语理解.从句.
1)who,whom,that
这些词代替的先行词是人的名词或代词,在从句中所起作用如下:
Is he the man who/that wants to see you?
他就是你想见的人吗?(who/that在从句中作主语)
He is the man whom/ that I saw yesterday.
他就是我昨天见的那个人.(whom/that在从句中作宾语)
到底怎么理解?
怎么理解什么在从句作句子什么成分?
像以上怎么分在从句作宾语?主语?
到底要怎么去区分,
.我不清楚.

先用肯定句式分析:
He is the man wants to see u.wants为谓语,转换成从句疑问形式:Is he the man who wants to see u?中 who 为主语引领从句.
非从句形式:
I saw him yesterday.(him在此句中是宾语,trans为从句形式He is the man that i saw yesterday中 I已经是从句的主语 故that是该句宾语.
不知你滴明白?