Unit 3 Is this your pencil? Section A Grammar Focus-3c课件(共22张PPT)2022-2023学年人教版英语七年级上册

(共22张PPT)
Unit 3
Is this your pencil
I. 根据图片说出正确的单词。
pen
ruler
book
eraser
pencil
school bag
dictionary
pencil box
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.
Attention!
it’s ＝ it is
isn’t＝is not
aren’t＝are not
1. it is = ______
2. they are = _______
3. is not = _______
4. are not = _______
5. that is = _______
it’s
II. 写出下列表达方式的缩写形式。
they’re
isn’t
aren’t
that’s
Language points
一、含有动词be的一般疑问句
（1）一般疑问句的概念：能用yes或 no回答的问句就叫一般疑问句。
This
is
my
pencil.
Is
this
your
pencil
含有be动词的陈述句变为一般疑问句的步骤
含有be动词的陈述句变一般疑问句的方法：
※将be动词提至句首
※将句末标点改为问号
※将第一人称变为第二人称，即 I 由 you替换;
my由your替换；相应地am也变为are.
简单归纳即为：一提二变三替换。
(3)含有be 动词的一般疑问句的回答方式：
①肯定回答：Yes, 主语+ be(am,is are). 其中，be动词不能与主语缩写。
②否定回答：No, 主语+ be(am, is, are)+not.其
中be可以与not缩写，但am不能与not缩写。
（4）一般疑问句的语调：读一般疑问句用升调 ↑，其简略回答用降调 ↓。
【学以致用】
用be动词的适当形式填空
1. ——How are you
——I　　　　OK, thanks.
2. Oh, this black pen　　　　Peter’s.
3. ——Who is the woman
——She　　　　our English teacher.
4. Bob’s two aunts　　　　on the sofa. 　
am
is
is
are
观察下列句中被圈住单词并找出它们的不同。
名词性物主代词
形容词性物主代词后面带名词
名词性物主代词后不能再接名词
人　称 形容词性物主代词 名词性物主代词
I my mine
you your (你的) yours
he his his
she her hers
it its its
we our ours
you your (你们的) yours
they their theirs
【学以致用】
用所给词的适当形式填空
1. Alice and Bill are　　　　　 (I) good friends.
2. These books are　　　　　 (I) .
3. The girl is Ann and this is　　　　　 (she) mother.
4. This book is　　　　　 (she) .
5. 　　　　　 (her) is Susan, my sister.
my
mine
her
hers
She
Yes, it ___.
Is ____ his ruler
Are _____ my pencils
Yes, _____ are.
No, it ____.
Is ____ your book
No, they ______.
Are _____ her pens
this
these
isn’t
they
that
those
is
Complete the questions and answers about each picture.
Yes, it is.
No, they aren’t.
No, it isn’t.
Yes, they are.
aren’t
1. Is this her ruler
2. Is that Eric’s schoolbag
3. Are these his pencils
4. Are those Anna’s books
Yes, ________. They’re ________________.
No, ______. ____ Sally’s.
No, ___________. _________ mine.
Yes, ____. It’s ______________.
Read the questions and complete the answers.
it is
hers / her ruler
it isn’t
It’s
they are
his / his pencils
they aren’t
They’re
Now role-play the conversation with your partner.
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!
No, it
isn’t.
Find the Owner!
A: Is this your …
B: Yes, it is.
No, it isn’t.
Game
Is this your
eraser
No, it
isn’t.
Is this your
ruler
Yes, it is.
Yes / No questions and short answers
A: Is this / that ...
B: Yes, it is. / No, it isn’t.
A: Are these / those...
B: Yes, they are. / No, they aren’t.
名词性物主代词
hers, his, mine, yours, its, theirs
单项选择
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; hers
C. mine; her　　　　　　　 D. mine; hers
5. Thank you　　　your photos.
A. at　　　 B. for　　 　C. of　　　 D. to
1. Review Grammar.
2. Preview Section B 1a-1e.