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主格人称代词，也称为主格代词或主格人称代名词，在句子中充当主语或主语的补语角色。物主形容词，中文译为“物主形容词”（亦称“所有格形容词”），因代词属于名词性词类，故也有人将其直译为“名词性物主代词”。从句子功能角度来看，物主形容词主要用作表语，同时对名词进行定语修饰。
主格代词与物主形容词
I I have a shirt. MY My shirt is green.
YOU You have a book. YOUR Your book is new.
HE He has a pillow. HIS His pillow is soft.
SHE She has a dog. HER Her dog is small.
IT It has a bone. ITS Its bone is old.
WE We have a bird. OUR Our bird is noisy.
YOU You have a house. YOUR Your house is big.
THEY They have a car. THEIR Their car is slow.
My balloon is blue.
My balloons are blue.
Your balloon is green.
Your balloons are green.
It’s hot today.
The car is eating its food.
You’re intelligent.
I like your dress.
填空练习（答案请见视频）
1. John has a bike. _______ bike is fast.
2. I have a dictionary. _________ dictionary is old.
3. You have an alarm clock. ______ alarm clock is noisy.
4. France is in Europe. ________ capital is Paris.
5. Brian and Mary like _______ new teacher.
6. We have a house. _______ house is small.
7. She is my sister. ________ name is Susan.
8. You and Mike have friends. ______ friends are nice.
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