定语从句怎样判断关系代词是做主语还是宾语

Question

He is the man. He came here last week. He is the man who came here last week She is the woman. I served her yesterday. She is the woman I served yesterday. They are the books. I bought the books last year. They are the books I bought last year 这里的关系代词who是做主语还是宾语是怎样判断的，求解

Answer 1

He
is
the
man.
He
came
here
last
week.
He
is
the
man
who
came
here
last
week.
(该句中的“who
came
here
last
week”为定语从句，修饰“the
man”，很明显，从句中的“who”是“came
back”动作的发出者，所以“who”在从句中充当主语。)
She
is
the
woman.
I
served
her
yesterday.
She
is
the
woman
I
served
yesterday.
(该句中的“I
served
yesterday”为定语从句，修饰“the
woman”，其实，定语从句中省掉了关系代词“who，whom或that”。关系代词在定语从句中作宾语时，可将其省略。完整的句子应为“She
is
the
woman
who
/
whom
/
that
I
served
yesterday.
”如果将从句部分的关系代词代入句中的话，应为：I
served
who
/
whom
/
that
yesterday，很明显，从句中的“who
/
whom
/
that”是“served”动作的承受者，所以关系代词在从句中充当宾语。)
They
are
the
books.
I
bought
the
books
last
year.
They
are
the
books
I
bought
last
year.
（该句和第二句用法相同，关系代词which
/
that因在定语从句中充当宾语，被省略了，能看明白吧？其实完整的句子应该是：They
are
the
books
which
/
that
I
bought
last
year.
关系代词代入定语从句中，则为：I
bought
which
/
that
last
year.
能看出“which
/
that”充当的是宾语吧。）
好了，就解释这么多，相信你能看懂的。祝你英语学得越来越好！