(共19张PPT)
Section A (Grammar Focus-3c)
Unit 3 Is this your pencil
Let's guess
What’s that
Is that a/an…
Yes, it is. / No, it isn’t.
What’s this
Is this a/an…
Yes, it is. / No, it isn’t.
Let's guess
Let's guess
Are these her…
Yes, they are./ No, they aren’t.
Let's guess
Are those his…
Yes, they are./ No, they aren’t.
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
含be动词的一般疑问句的结构及回答
1) 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。)
2) 肯定回答:Yes, 主语+be动词(am/is/are). 主语和be动词不能缩写。
3) 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。
4)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。
含be动词的肯定句变一般疑问句
含be动词的肯定句变一般疑问句,可采用“一提、二变、三问号”的方法。
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。
三问号:将句末的标点符号改为问号。
【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
句型转换
1. That is his schoolbag. (变为一般疑问句)
_____ _____ his schoolbag (作肯定及否定回答)
Yes, _____ _____. / No, _____ _____.
2. These are her erasers. (变为一般疑问句)
______ _____ her erasers (作肯定及否定回答)
Yes, _____ ____. / No, ____ _______.
Is that
they are
it isn’t
it is
Are these
they aren’t
名词性物主代词。
mine,hers,yours 等是名词性物主代词,相当于一个名词,可以在句子中单独使用。它相当于“形容词物主代词 + 名词”。而形容词性物主代词只能和名词在一起使用。
例句: This is your ruler. It’s not my ruler.
= This ruler is yours. It’s not mine.
这是你的尺子,它不是我的。
Those aren’t his books. They’re her books.
= Those books aren’t his. They’re hers.
那些书不是他的。它们是她的。
形容词性物主代词和名词性物主代词表
【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
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
3a
3b
Read the questions and complete the answers.
Yes, _______.
It’s ________.
No, _________.
______ Sally’s.
1. Is this her ruler
2. Is that Eric’s schoolbag
it is
hers
it isn't
It's
3. Are these his pencils
4. Are those Anna’s books
Yes, _________.
They’re ________.
No, ____________.
_________ mine.
they are
his
they aren't
They're
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.
3c
Is this your
eraser
Exercises
一、单项选择。
1. —I can’t find my pencil. May I use _______
—Of course.
A. you B. yours C. your
2. ______ bike is new.
A. She B. He C. His
3. My room is big. ______ is small.
A. Her B. Hers C. She
B
B
C
翻译句子。
1.那些橡皮是你的吗? 不是,它们是玛丽的。
2.这是你的书吗? 是的,是我的。
3.那是李明的词典吗? 不,不是。它是我的。
4.这些是他的尺子吗? 是的,是他的。
—Are those erasers yours —No, they aren't. They are Mary's.
—Is this your book —Yes, it is. It's mine.
—Is that Li Ming's dictionary —No, it isn't. It's mine.
—Are these his rulers —Yes, they are.