英語人稱代詞是什麼

1)、定義：人稱代詞是用來指代人、動物或事物的代詞。它必須在人稱(第一人稱、第二人稱、及第三人稱)、數（單數、複數）以及性（陰性、陽性、中性）三方面與被指代的名詞一致。

如：I am a student.

Tom is a boy, and he is a student.

Mary is very pretty, and she likes singing.

The boys are students, and they are in the room.

The doy is small. It is Tom's.

2、人稱代詞的句法功能

A) 人稱代詞有主格和賓語之分：主格用作主語，賓格用作賓語。

B) 人稱代詞的主格形式在在句中作主語和表語。

如: I like music(主語).

She is a teacher.(主語)

She and I are good friends(主語).

Neither she nor I am student.

——I saw the boys this morning.

——Are you sure it was they(表語)?

C) 人稱代詞的賓格在句子作動詞的賓語，或者介詞的'賓語。

如：I saw him at the party(賓語).

I haven't seen them recently. (賓語)

I bought a book for them. (作介詞賓語)

=I bought them a book. (間接賓語)

【注意】

a. 在口語中，人稱代詞的主格形式作表語時，常常可以用賓格替換。

如：It can't be he/him.

——Is this Mr. Green?

——Yes, this is he/him.

b. 在口語中，當人稱代詞用於than, as 之後或用於強調句中被強調時，用主格(較正式)和賓格(較口語化)均可以。

如：

He sings better than I/me. 他比我唱得好。

You know more than she/her.

She is as tall as me(I am).

c. 單獨使用的人稱代詞通常用賓格，即使它充當的是主語也是如此。如：

“I like English.”

“我喜歡英語。”

“Me too=I like English too.”

“我也喜歡。”