七年级英语下册Module 1 Unit 3《Language in use》
Look at the picture and write conversations.
1.A:Is that your bag?
B:No,it isn't.It's Lingling's.
2.A:Is that your pencil?
B:Yes,it is.it's mine.
3.A:Is that your basketball?
B:No,it isn't.It's Tony's.
4.A:Is that your book?
B:No,it isn't.It's his.
1.Work in pairs.Ask and answer questions.
bag camera crayons eraser football gloves wallet watch
-Whose bag is this?Is it yours?
-No,it's not mine.It's his.
Grammar 
名词性物主代词的用法
表示所有关系的代词叫物主代词，也可叫作代词所有格。可分为两种：名词性物主代词和形容词性物主代词。请看下面表格：
物主代词 单数
 
 第一人称 第二人称 第三人称
形容词性物主代词 my your his her its
名词性物主代词 mine yours his hers its
含义 我的 你的 他的 她的 它的
 复数
 第一人称 第二人称 第三人称
形容词性物主代词 our your their
名词性物主代词 ours yours theirs
含义 我们的 你们的 他们的
人称代词 形容词性物主代词 名词性物主代词
主格 宾客
I me my mine
you you your yours
he him his his
she her her hers
we us our ours
they them their theirs
名词性物主代词起名词的作用。为了避免重复使用名词，我们经常用名词性物主代词来代替“形容词性物主代词+名词”的形式。如：
My pen is missing.Mary I borrow yours(=your pen)?
-Is this comb yours?
-No,it's hers.
Is this your book or mine?
A friend of mine came to see me yesterday.
1.用法
1.形容性物主代词用来修饰名词，起形容词的作用，不能单独使用。如：
My parents are both teachers.
我的父母都是老师。
2.名词性物主代词可以单独使用，相当于“形容词性物主代词+名词”，后面不跟名词。如：
May I use your ruler?I have lost mine.
=May I use your ruler?I have lost my ruler.
另外，名词性物主代词还可以用在"n.+of+名词性物主代词“结构中，表示”某人的....“如：
The shoes of hers are very nice.
她的鞋子很漂亮。
Ⅱ.所作成分：
1.形容词性物主代词只能作定语。如：
There is something wrong with his computer.
他的电脑出问题了。
They love their work in the shop.
他们喜欢在商店的工作。
2.名词性物主代词可以作主语、宾语和表语。如：
Your book is interesting,but mine is more interesting.(作主语）
你的书很有趣，但是我的更有趣。
These letters are his. (作表语）
这些是他的信。
I lost my pen this morning.May I borrow yours? (作宾语 ）
我今天早晨丢了我的钢笔，我能借用一下你的吗？
名词所有格的用法
英语中的名词所有格表示一种所属关系，'s所有格多用于生命的名词。
构成：
①在单数名词的末尾加's 构成名词的所有格，表示”....的"
Tony's mother 托尼的妈妈
Tom's pen 汤姆的钢笔
②在以-s或-es 结尾的复数名词后只需加'.
the girls' bags 女孩们的书包
③在不以-s或-es 结尾的复数名词后，加's构成所有格。
Women's Day 妇女节
④表示时间、距离的名词所有格与有生命的名词所有格构成方法相同。
today's class 今天的课
five minutes' walk 五分钟的路程
注意
①可用名词所有格表示地点。
at any aunt's 在我姑姑家
at the doctor's 在医生的诊所
②如果并列名词各自所拥有某物，每个词后都加's;若表示两人共同拥有的物品，在最后一个名词后加's.
Linda's and Jim's mothers.
琳达和吉姆的妈妈
Lucy and Lily's room
露西和莉莉的房间
Practice
1.选择括号中所给的代词填空。
1.(My)(My ,Mine,I)pen is red,and (hers)(hers,her,she)is blue.
2.We love (our)(ours,our,we)country.
3.Are you looking for(him)(him,he,his)?
4.They help(us)(we our,us)and (we)(we,ous,us)often help(them)(their,theirs,them).
5.(It)(It,Its)is a new book.(Its)(It,Its)cover is red.
6.I will show(you)(your,you,yours)some new books.
7.(His)(He,His)pen is in(my)(I,my,mine)pencil-box.
8.(Your)(You,Yours,Your)shoes are under the bed.
9.-Are these trousers (yours)(your,your,yours)?
-No,they aren't (ours)(we,our,ours).
10.-Is this your pen?
-No,it's not (mine)(me,mine).My pen is blue.
Read the answer.
What things can we find on the Internet lost and found?
We can find my dog,cat,my favourite watch...or my brother.
Discuss
Talk about the advantage and disadvantage of the Internet lost and found?
Advantage:
convenient helpful
help you find you lost things easily
Disadvantage:
You will have to let out some of your personal details.
Acting out a sketch in the lost and found office
Work in pairs.
Student A:Think of three of four things you have lost or you can choose from the box.Try to describe them.
Student B:Think of five or six things you have in your lost and found office or you can choose from the box.Try to desribe them.
Staff:Can I help you,sir? 先生，您好！
David:Yeah.I lost my boarding pass.Could you help me to report it as lost?
你好，我把登机牌弄丢了。你能帮我广播一下吗？
Staff:Don't worry.Someone just turned in a boarding pass that was found on the ground.May I see your ticket and passport?
别太着急，有人刚捡到一个登机牌，交到我们这儿来了。麻烦能看一下您的机票和护照吗？
David:Sure.My name is David Smith.Is that mine?
好的，我叫大卫.史密斯，是我的吗？
Staff:Yes.Here is your boarding pass.Please take care not to lose it again.
是的，给您登机牌，请您小心保管。
Complete the sentences with the correct form of the words from the box.
her hers his its mine my whose your yours
1.-Is this (your)sweater,Daming?
-Yes,it is.
2.-Are these gloves (yours),Betty?
-Yes,they are.
3.-(Whose)watch is this?
-It's Tony's.
4.-This wallet isn't(mine).Is it yours?
-Yes,it is.Thank you.
5.-Tony is looking for his crayons.
-Are these (his)?
6.-Is this bag Betty's?
-No,it's not (hers).It's Lingling's.
7.-Is this the girl's football?
-No,it's not (her)football.
8.I can't find(my)carema.Where is it?
9.-What's the name of the dog?
-(Its)name is Blackie.
Homework
Complete the exercises on Page 6-7.