2021-2022学年人教新目标七年级上册Unit 3 Is this your pencil单元语法课件27张

(共27张PPT)
Unit 3
Is this your pencil
Period 2
Unit 3 Is this your pencil
教学目标
1、掌握词汇。本课词汇多为物品名词，学会用英语询问物品的归属关系
2、掌握以be动词引导的一般疑问句
3、掌握名词性物主代词的用法
4、理解失物招领和寻物启事，同时可以写出两则类似的启事
5、归纳琐碎的知识点
Pairwork
A: What’s this in English
B : It’s a /an……
A : Is this yours
B: No ,it’s hers /his /theirs……
A: What are these in English
B : They are ……
A : Are these yours
B: No , they are ……
/Yes, they are ours/mine.
Pairwork
温馨小贴士：名词性物主代词= 形容词性物主代词+名词
It’s her/his pencil.
The green pencil is hers/his.
It’s ______ ______.
The _______ is _______.
The ____ and the____ are _______.
Linda
Bob
What's up (发生什么事了？)
They are looking for the owner(找主人) of the school things.
Complete the questions and answers about each picture. 根据图片补全问句和答语。
3a
Is______ your book Yes, it is.
No. it _______.
Are _____ my pencils Yes, _____ are.
No, they aren’t.
Is ______ his ruler Yes, it ______.
No, it isn’t.
Are ______her pens Yes, they are.
No, they______.
this
isn’t
these
they
that
is
those
aren’t
Read the questions and complete
the answers. 阅读问句并补全对话。
Is this her ruler
Is that Eric’s schoolbag
Are these his pencils
Are those Anna’s books
Yes, . It’s .
No, . Sally’s.
Yes, . They’re .
No, .
mine.
it is
hers
it isn’t
It’s
they are
his
they aren’t
They’re
3b
Put some things into the teacher’s box and introduce them.一边在老师的盒子里放一些物品一边介绍。
GAME 游戏
找主人。
3c
Here is my pen. The black pen is mine.
Here are my rulers. The white rulers are mine.
A: Excuse me, is this your…
are these your ...
B: No, it isn’t/ they aren't.
I think it’s/ they're his/hers/Bob’s/….
A: Thank you for your help.
B: You're welcome.
找主人。
Is this your pencil Yes, it is. It’s mine
No, it isn’t. It’s hers.
Is this his green pen Yes, it is. /No, it isn’t.
The blue pen is his.
Is that your schoolbag Yes, it is./No, it isn’t. It’s his.
Are these your books Yes, they are./No, they aren’t.
They’re hers
Are those her keys Yes, they are./No, they aren’t.
They’re mine.
Grammar Focus
it’s =it is isn’t =is not aren’t =are not
这是你的铅笔吗？
__ ____ your pencil
是的。它是我的。
Yes, ___ ___. It’s _____.
2. 那是你的书包吗？
__ ____ your schoolbag
不是。它是他/她的。
No, __ ____. It’s ___/_____.
3. 这是他的绿色钢笔吗？
__ this ___ _____ pen
Is this
mine
Is that
it isn’t his hers
it is
Is his green
完成句子。
不是。那只蓝色钢笔是鲍勃的。
No, __ _____. The ____ ____ is ____.
4. 这些是你的书吗？
____ ______ your books
是的。/ 不是。
Yes, ____ ____. / No, _____ ______.
5. 那些是她的钥匙吗？
____ _____ her _____
不是。它们不是她的，是辛迪的。
No. _______ not ______. They _____ ______.
Are these
they are
they aren’t
Are those keys
They’re
blue pen Bob's
it isn’t
hers
are Cindy's
语法
1、be动词引导的一般疑问句
（此时需要回顾一下be动词的用法，包括形式，各种句型）
构成：be动词 + 主语 + 句子其他成分
ex：1) He is a student.
Is he a student
2) They are friends.
Are they friends
3) I am a student.
Are you a student （按照正常的逻辑关系，陈述句为I am, 疑问句 应变成第二人称你的形式）
4) This is an apple.
Is this an apple
注意：由指示代词this,that作主语的疑问句在作答时，常用it代替this或that;同理，由these,those作主语时，用they代替these和those.
be动词引导的一般疑问句构成法则：
1、一提→be动词提到句首
2、二变→大小写、人称
3、三问号→句子末尾加问号
be的用法口诀：
我用am，你用are, is跟着他、她、它。
单数is，复数are，勿忘be的三变化。
变疑问，往前提，句末问号莫丢弃。
变否定，更容易，be后not莫忘记。
疑问否定任你变，句首大写莫迟疑。
be动词引导的一般疑问句的回答：
肯定回答：
Yes, 主语+be（am, is, are）
注意：※ 简略回答不能用缩写形式 ※
否定回答：
No, 主语+be （am, is, are）+not
注意：※ 简略回答必须用缩写形式。主语是I时用缩写I'm not.※
Examples:
1 -Is he a student
-Yes, he is.
-No, he isn't.
2 -Is she in Class Four
-Yes, she is.
-No, she isn't.
3 -Are they 14 years old
-Yes, they are.
-No, they aren't.
4 -Is this an eraser
-Yes, it is.
-No, it isn't.
5 -Are these your pencils
-Yes, they are.
-No, they aren't.
名词性物主代词
物主代词分形容词性和名词性两类，第一课中已经提及。我们将借助形容词性物主代词来解释说明名词性物主代词
以上是两类物主代词的汇总，我们将通过例子说明：
单数 复数
一 二 三 一 二 三
形容词性 my your his/her/its our your their
名词性 mine your his/hers/its ours yours theirs
含义 我的 你，您的 他/她/它的 我们的 你们的 他/她/它们的
数
人称
类别
Examples：
1 -Is this your pencil
-Yes, it is, it's mine. （=it's my pencil）
2 -Are these your books
-No, they aren't. They are hers. （=they are her books）
用法：
1）名词性物主代词在句中独立使用，相当于”名词性物主代词 = 形容词性物主代词+前文提到的物品“，后面不再加名词。
2）名词性物主代词在句中可作主语、表语或宾语。用作主语时，谓语动词的数应随所指对象的数而定。
ex：1 -Is this ruler yours or hers
-It's mine. Hers is in her bag.（Hers = her ruler, 所以be动词选择is）
2 -Whose books are these
-They are his. Yours are over there.（yours =your books, 所以be动词选择are）
补充：
1 人称代词的主格和宾格
2 所有格
单数 复数
主格 宾格 主格 宾格
第一人称 I me we us
第二人称 you you you you
第三人称 he him they them
she her
it it
数
格
人称
Ex： No, they are Bob's.
Bob's = Bob的 是Bob的所有格形式
所有格表示人或物的所属关系，含义为“...的”
1）单数名词的所有格通常直接在词尾加's
ex：Tom → Tom's mother 汤姆的妈妈
Kate → Kate's books 凯特的书
2）名词为复数时，且该名词复数以s结尾时，直接在s后加’
ex：my sisters' room 我妹妹们的房间
his parents' house 我父母的房子
名词复数不以s结尾时，加's
ex：Children's Day 儿童节
一、单项选择
1. — Is that your computer game — ____
A. Yes, it is B. No, it is. C. Yes, it isn’t.
2. A baseball is ______ the school library.
A. on B. in C. at
3. Her telephone number _____ 889-9676.
A. am B. is C. are
4. —What’s this — _____.
A. This is a pen. B. Yes, it is. C. It’s a key.
5. — _____ do you spell “ring” — R-I-N-G.
A. What B. Who C. How
A
B
B
C
C
1. This is her green jacket. (改为同义句)
This green jacket is _____.
2. My pen is red. What color is your pen (改为同义句)
My pen is red. What color is ________
3. This is his green jacket. (改为同义句)
This green jacket is _____.
4. Your pen is red; my pen is red, too. (改为同义句)
Your pen is red; ______ is red, too.
hers
yours
his
mine
二、按要求改写句子。
三、补全对话，每空限填一词。
A: ________me, Tom. Are these _______ pencils
B: No, ______ are not mine. They are Mary’s.
A: And is this black pen ________,too
B: No, _____ isn’t. It’s Peter’s. He can’t find (找
到)______ pen.
A: What about this eraser Is it ______
B: Yes, it’s ________.
A: Thank you ______ your help.
B: You’re _________.
Excuse
your
they
hers
it
his
yours
for
welcome
mine
四、句型转换
Is that your schoolbag (作肯定回答)
_____________________________
2. Are these his books (作否定回答)
_____________________________
3. Those are her pens.(改为同义句)
_____________________________
4. This pencil box is his.(改为同义句)
_____________________________
5. These are my erasers.(改为一般疑问句)
_____________________________
Yes, it is.
No, they aren’t.
Those pens are hers.
This is his pencil box.
Are these your erasers
1. 这是什么？ _______ this
2. 你怎样拼写它？ _____ do ____ spell it
3. 那只绿色的铅笔是你的吗？
___ the green pencil _______
4. 一部电脑游戏机在图书馆里。
A _________ ______ is ___ the school library.
5. 发电子邮件到我的邮箱jack@。
______ me ___ jack@.
6. 我把我的书包丢了。I ____ my __________.
What’s
How you
Is yours
computer game in
五、完成句子。
Email at
lost schoolbag