Unit 3 Is this your pencil?第二课时Section B (GrammarFocus-3c)课件(共19张PPT)

(共19张PPT)
Unit 3
Is this your pencil
第二课时 Section B (Grammar Focus-3c)
Learning Objectives
1.Grammar: ①含be动词的一般疑问句
②名词性物主代词
2. Sentences：（1）— Is this your pencil
—Yes, it is. It’s mine./No, it isn’t. It’s hers.
（2） —Is that your schoolbag
—Yes, it is./No, it isn't. It's his.
（3）—Are these your books
—Yes, they are./No, they aren't. They're hers.
（4）—Are those her keys
—Yes, they are./No, they aren't. They're mine.
Warm-up
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
Leading in
1. 这是你的铅笔吗？
2. 这些是你的书吗？
3. 谢谢你的帮助。
4. 那是你的橡皮吗？
5. 那些是你的字典吗？
6. 不客气。
1. Is this your pencil
2. Are these your books
3. Thanks for your help.
One
Two
Three
4. Is that your eraser
5. Are those your dictionaries
6. You’re welcome.
Five
Four
Six
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.
it's ＝ it is isn't＝is not aren't＝are not
Language points
含有be 动词的一般疑问句的构成及其答语
结构 Be 动词（Am/Is/Are）+ 主语+ 其他？↗
肯定回答 Yes, 主语（人称代词）+be 动词（am/is/ are）.↘
否定回答 No, 主语（人称代词)+be 动词（am/is/ are）+not.↘
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。
含be动词的肯定句变一般疑问句
“一提、二变、三问号”
一提：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； 如果有形容词性物主代词my或our， 也应改为your。
三问号：将句末的标点符号改为问号。
She is a teacher.
Is she a teacher
I am Tom.
Are you Tom
Those are my pens.
Are those your pens
This is her pencil box.
Is this her pencil box
e.g.
3a
Complete the questions and answers about each picture.
Is ________your book
Are _______ my pencils
Is _______ his ruler
Are ________ his pens
Yes, it is.
No, it _______.
Yes, ______ are.
No, they aren't.
Yes, it _____.
No, it isn't.
Yes, they are.
No, they ______.
this
isn’t
these
they
that
is
those
aren’t
3b
Read the questions and complete the answers.
1. Is this her ruler Yes, _______. It’s ______.
2. Is that Eric’s schoolbag No, _______. ______ Sally’s.
3. Are these his pencils Yes, _________. They’re ______.
4. Are those Anna’s books No, ___________. ________ mine.
it is
hers
it isn’t
It’s
they are
his
they aren’t
They’re
3c
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
Lost
Found
Is this your book, Tom
Yes, it is. It’s mine.
Lost
Found
Is that your dictionary, Lily
No, it isn’t. I think it’s Jane’s.
Yes, They are. It’s mine.
Lost
Found
Are these ...？
No, They aren’t.
They are ...
Exercises
1.—Is this your eraser
—Yes, _______.
A. this is B. this’s C. it’s D. it is
2.— Is that Alice’s dictionary
— Yes, it’s 　　　.
A. his B. hers C. mine D. yours
一、单项选择
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; hers
C. mine; her　　　　 D. mine; hers
二、按要求完成下列各题
1. She is good at playing the piano. (变为一般疑问句)
____ ____ good at playing the piano
2. These are her erasers. (变为一般疑问句)
______ _____ her erasers (作肯定及否定回答)
Yes, _____ ____. / No, ____ _______.
3. That is my schoolbag. （同义句）
______________________________
Is she
they are
Are these
they aren’t
That schoolbag is mine.
Summary
含有be动词的一般疑问句的句式结构
Be 动词（Am/Is/Are）+ 主语+ 其他？
No, 主语+be 动词（am/is/ are）+not.
Yes, 主语+be 动词（am/is/ are）.
Homework
1. Recite the sentences in Grammar Focus.
2. Preview the new words in Section B (1a-1d).