初中英语物主代词讲解练习教学教材
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代词
代词是代替名词的一种词类。大多数代词具有名词和形容词的功能。英语中的代词，按其意义、特征及在句中的作用分为：人称代词、物主代词、指示代词、自身代词。
一、人称代词是表示"我"、"你"、"他"、"她"、"它"、
"我们"、"你们"、"他们"的词。人称代词有人称、数和格的变化，见下表：
数单数复数
格主格宾格主格宾格
第一人称I me we us
第二人称you you you you
he him they them
第三人称she her they them
it it they them
如：He is my friend.他是我的朋友。
It‘s me.是我。
二、物主代词表示所有关系的代词，也可叫做代词所有格。物主代词分形容性物主代词和名词性物主代词二种，其人物和数的变化见下表。
数单数复数
人称第一第二第三第一第二第三
人称人称人称人称人称人称
形容词性my your his/her its our your/their
物主代词
名词性mine yours his/hers its ours yours/theirs
物主代词
如：I like his car.我喜欢他的小汽车。
Our school is here，and theirs is there.我们的学校在这儿，他们的在那儿。
三、指示代词表示"那个"、"这个"、"这些"、"那些"等指示概念的代词。指示代词有this，that，these，those等。
如：That is a good idea.那是个好主意。
四、表示"我自己"、"你自己"、"他自己"、"我们自己"、"你们自己"和"他们自己"等的代词，叫做自身代词，也称为"反身代词"。
如：She was talking to herself.她自言自语。
解密物主代词
A. 读对话
Miss Green: What are you doing there, boys and girls?
Wendy: We’re cleaning our TV room and getting ready for the party.
Millie: I see an exercise book there. Is it Beibei’s?
Paul: Yes, it’s hers.
Millie: Whose hats are these? Are they yours?
Paul: Yes, they’re ours.
Miss Green: Shh!Listen!I can hear music. Whose radio is it from?
Paul: It’s not from mine. It’s from Pinging’s. Hi, Pingping!Is this radio yours?
Pingping: No, it’s not mine. Perhaps it’s Tom’s.
Miss Green: What about the clothes?
Pingping: They’re Jack’s.
Miss Green (to Jack): Oh, dear! Are the clothes yours or his?
Jack: It’s not mine, it’s his.
B. 作分析
1. 形容词性物主代词相当于一个形容词，不能单独使用，只能用在名词之前作定语。例如：
We’re clean ing our TV room...
2. 名词性物主代词相当于“形容词＋名词”，能单独使用，在句子中作主语、宾语、表语或者与of结构连用作后置定语。例如：... they’re ours.
各自特点
1.在名词前已经有物主代词时，不能再用冠词及指示代词。例如：
We’re cleaning the our TV room...(?菖)
We’re cleaning our TV room...(?菁)
2. 形容词性物主代词可以与其它形容词一起修饰名词，但要放在其它形容词之前。例如：
This is my new radio.
3. 名词性物主代词在句子中作主语时，谓语动词要和它所指代的名词的数保持一致。例如：
Her shoes are black. Yours are white.
4. 汉语中经常省去“你的”、“我的”等物主代词，但在英语中不能省去物主代词。例如：
Jeff, put on your coat, please. 杰夫，请穿上大衣。(汉语中省去了“你的”)
5. its, his的形容词性物主代词和名词性物主代词是同形的，使用时要根据具体情况进行区分。例如：
It’s not mine, it’s his.(his为名词性物主代词)
C. 理解填空白
Using: mine, ours, yours, his, hers, theirs
1. This is my sweater.
The sweater is ________.
2. That is his cap.
The cap is ________.
3. These are their skirts.
These skirts are ________.
4. Those are our coats.
Those coats are ________.
5. These are your shirts.
These shirts are ________.
6. Those are her trousers.
Those trousers are ________.
D. 代词巧变化
1. This is not your bike. It is ________
(my).
2. Where is Tom?________(he) mother is looking for ________(he).
3. This dress is so beautiful. I like ________ (it) colour.
4. Is that computer ________(you)? No, it not ________(my).
5. You can speak to ________(I). I am ________(they) teacher.
6. Are these my clothes? No,________(you) are on your bed.
7. Is this her car? No, ________(she) is over there.
8. This is not our class. ________(our) is in Building A.