1.人称代词主格和宾格的区别：主格通常位于句中第一个动词之前（有时候位于than 之后），宾格一般位于动词或介词之后。
2.物主代词形容词性与名词性的区别：形容词性用时后面一般要带上名词，名词性则单独使用，后面不带名词。
人称代词 物主代词
主格 宾格 形容词性 名词性
我 I me 我的 my mine
你，你们 you you 你的，你们的 your yours
他 he him 他的 his his
她 she her 她的 her hers
它 it it 它的 its its
我们 we us 我们的 our ours
他（她，它）们 they them 他（她，它）们的 their theirs
练习题
一、用所给词的适当形式填空
1. That is not _________ kite. That kite is very small, but _________ is very big. ( I )
2. The dress is _________. Give it to _________. ( she )
3. Is this _________ watch? (you) No, it’s not _________ . ( I )
4. _________ is my brother. _________ name is Jack. Look! Those stamps are _________. ( he )
5. _________ dresses are red. (we) What colour are _________? ( you )
6. Here are many dolls, which one is _________ ? ( she )
7. I can find my toy, but where’s _________? ( you )
8. Show _________ your kite, OK? (they)
9. I have a beautiful cat. _________name is Mimi. These cakes are _________. ( it )
10. Are these _________ tickets? No, _________ are not _________. _________ aren’t here. ( they )
11. Shall _________ have a look at that classroom? That is _________ classroom. ( we )
12. _________ is my aunt. Do you know _________ job? _________ a nurse. ( she )
13. That is not _________ camera. _________is at home. ( he )
14. Where are _________? I can’t find _________. Let’s call _________ parents. ( they )
15. Don’t touch _________. _________ not a cat, _________ a tiger!
16. _________ sister is ill. Please go and get _________. ( she )
17. _________ don’t know her name. Would you please tell _________. ( we )
18. So many dogs. Let’s count _________. ( they )
19. I have a lovely brother. _________ is only 3. I like _________ very much. ( he )
20. May I sit beside _________? ( you )
21. Look at that desk. Those book are on _________. ( it )
22.The girl behind _________ is our friend. (she )
二、用am, is, are 填空
1. I ______ a boy. ______ you a boy? No, I _____ not.
2. The girl______ Jack"s sister.
3. The dog _______ tall and fat.
4. The man with big eyes _______ a teacher.
5. ______ your brother in the classroom?
6. Where _____ your mother? She ______ at home.
7. How _______ your father?
8. Mike and Liu Tao ______ at school.
9. Whose dress ______ this?
10. Whose socks ______ they?
11. That ______ my red skirt.
12. Who ______ I?
13.The jeans ______ on the desk.
14.Here ______ a scarf for you.
15. Here ______ some sweaters for you.
16. The black gloves ______ for Su Yang.
17. This pair of gloves ______ for Yang Ling.
18. The two cups of milk _____ for me.
19. Some tea ______ in the glass.
20. Gao shan"s shirt _______ over there.
21. My sister"s name ______Nancy.
22. This ______ not Wang Fang"s pencil.
23. ______ David and Helen from England?
24. There ______ a girl in the room.
25. There ______ some apples on the tree.
26. _______ there any kites in the classroom?
27. _______ there any apple juice in the bottle?
28. There _______ some bread on the plate.
29. There _______ a boy, two girls, three men and ten women in the park.
30. You, he and I ______ from China.