Unit 3 Is this your pencil Section A Grammar Focus - 3c 原创教学课件(共27张PPT)

(共27张PPT)
Unit 3
Is this your pencil
Section A Grammar Focus - 3c
This, this, what’s this
Pencil, pencil, it’s a pencil.
That, that, what’s that
Ruler, ruler, it’s a ruler.
These, these, what're these
Books, books, they’re books.
Those, those, what're those
Erasers, erasers, they’re erasers.
let’s chant
CONTENTS
01
02
Grammar Focus
3a-3c
01
Part
One
Grammar Focus
Grammar Focus
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.
Presentation
Attention!
it’s ＝ it is
isn’t＝is not
aren’t＝are not
含be动词的一般疑问句
含be动词的一般疑问句的结构及回答
含be动词的肯定句变一般疑问句
物主代词
含be动词的一般疑问句
一般疑问句是在句子中用提问的方式提供一些信息，要求对方用 Yes 或 No 回答的疑问句。朗读一般疑问句时用升调，对其回答时用降调。本单元我们学习的是含有be动词的一般疑问句。
含be动词的一般疑问句的结构及回答
如果一般疑问句主语是this, that, these或those，回答时用it指代this或that；用they指代these或those。
肯定回答
Yes, 主语+be动词(am/is/are).
主语和be动词不能缩写。
否定回答
No, 主语+be动词(am/is/are)+not. 通常is, are和not要缩写， 但am和not不能缩写。
结构
Be动词(am/is/are)+主语+其他
（Be动词要和主语的人称和数保持一致。）
—Is this your pen 这是你的钢笔吗？
—Yes, it is. 是的，它是。
—Are these your books 这些是你的书吗？
—No, they aren’t. 不，它们不是。
*不可以缩写成it’s
For Example
含be动词的肯定句变一般疑问句(“一提、二变、三问号”)
三问号
将句末的标点符号改为问号。
一提
指的是将be动词提到句首， 且首字母大写。
二变
把原主语的首字母变成小写； 如果原主语为第一人称， 则应把第一人称变为第二人称， be动词也要作出相应的变化； 如果有形容词物主代词my或our， 也应改为your。
She is a teacher.
Is she a teacher
I am Tony.
Are you Tony
Those are my pens.
Are those your pens
This is her book.
Is this her book
物主代词
表示所有关系的代词叫作物主代词。物主代词分为形容词性物主代词和名词性物主代词两种。
物主代词的分类
数/人称 类别 单数 复数
第一 人称 第二 人称 第三人称 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 our your their
名词性物主代词 mine yours his hers its ours yours theirs
含义 我的 你的 他的 她的 它的 我们的 你们的 他/她/它们的
物主代词的用法
形容词性物主代词
它在句中作定语， 修饰名词。
它在句中可作主语、宾语、表语等。作主语时，谓语动词的单复数形式由名词性物主代词所指代的名词的数来决定。
名词性物主代词
它相当于“形容词性物主代词+名词”，其后不能再加名词。
名词性物主代词
This is my ruler. Hers is in the schoolbag.
这是我的尺子。她的在书包里。
形容词性物主代词my修饰名词ruler
名词性物主代词Hers=Her ruler后面不能再加名词，
且后面的be动词用is。
For Example
形容词性能力差，自己不能来当家。
句子当中作定语，身后定把名词加。
物主代词名词性，相当名词可单用。
his, its无变化 ， my和mine要牢记。
其余变形规律化，变形后加-s尾巴。
物主代词用法小记
02
Part
Two
3a-3c
3a Complete the questions and answers about each picture.
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
not 用于构成否定形式，置于句中，常放在be动词、情态动词can等助动词do的后面，可与前面的词缩成一个词，但不能独立使用。
This is not (isn’t) a pen.
I can not (can’t) come.
no 常用于带冠词(a, an, the)的名词前，主要修饰可数名词，此时，既可放在单数名词前，也可放在复数名词前。在no+名词的结构中，名词前不能加any, much等词。
It has no tail.
它没有尾巴。
Tom has no books.
汤姆没有书。
There is no water now. 现在没有水。
Language points
not和no的区别
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 Read the questions and complete the answers.
3b Put some things into the teacher’s box. Then take one thing out of the box and find the owner. You only have two guesses!
Is this your eraser
No, it isn’t.
Find the owner of the eraser.
A: Excuse me. Is this your eraser
B: No, it isn’t. I think it’s her / his eraser.
A: Excuse me. Is this your eraser
C: No, it isn’t. I think it’s her / his eraser.
A: Is this your eraser
D: Yes, it is. It’s my eraser.
A: Here you are.
D: Thank you.
Exercise
一、根据汉语意思填空。
这是你的铅笔吗？
your pencil
2. 是的。它是我的。
Yes, . It’s .
3. 那是她的书包吗？
her schoolbag
Is this
mine
Is that
it is
4. 不是。它是他的。
No, .
It’s .
it isn’t
Is his red
his
blue pen
it isn’t
5. 这是他的红色钢笔吗？
this pen
6. 不，它不是。那只蓝色钢笔是他的。
No, . The is his.
1. — Is this your pencil
— Yes, 　　　.
A. it’s B. it is C. its　 　D. is it
2. — Is that Alice’s dictionary
— Yes, it’s　　　.
A. his B. hers C. mine D. yours
3. — Are those Tom’s pens
— No, 　　　 aren’t.
A. these B. those　 C. it　 D. they
4. This isn’t 　　　 book. It’s 　　　.
A. my; her B. my; her C. mine; her D. mine; hers
5. Thank you 　　　 your photos.
A. at　 B. for　 C. of　 D. to
二、单项选择。
Homework
Preview the new words and phrases in Section B(1a-1e).
Do the exercises in students’ book.
Next
Section B 1a-1e