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。
一、填写代词表主格。
I it we
you them
his your
hers
二、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 )