代词题是小升初和初一单选的送分题，也是最容易白丢分的题：my 和 mine 选错、him 和 his 混淆，都是因为没把这张变化表装进脑子。一次记牢，终身受用。
代词变化总表（必背）
| 主格 | 宾格 | 形容词性物主代词 | 名词性物主代词 | 反身代词 |
|---|---|---|---|---|
| I | me | my | mine | myself |
| you | you | your | yours | yourself |
| he | him | his | his | himself |
| she | her | her | hers | herself |
| it | it | its | its | itself |
| we | us | our | ours | ourselves |
| they | them | their | theirs | themselves |
三种代词的用法分工
- 主格作主语：She is my sister. 她是主语所以用 she
- 宾格作宾语：Please help me. 动词后面用 me
- 形容词性物主代词后面必须接名词：This is my book.
- 名词性物主代词后面不接名词，单独用：This book is mine. = my book
- 反身代词作宾语或强调：She taught herself English. / I did it myself.
判断口诀：动词前用主格，动词介词后用宾格；后面有名词用形容词性，后面没名词用名词性。做题先找位置，再查表格，永远不会错。
易错点：her、hers、herself 的区分
her 有两个身份：宾格和形容词性物主代词——I saw her（宾格）、her bag（她的包）；hers 只能单独用：The red bag is hers（这个红包是她的），后面绝不能再接名词。反身代词不能单独作主语，不说 Herself did it。考题常把三个词放在同一句里轮换空格，先用「后面有没有名词」判断物主代词，再用「动词前后」判断宾格。