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(共16张PPT)
指示代词
Unit 2
We are family.
指示代词
this, that
these, those
指人与指物．
注意到了吗？
单数 复数
is
are
be
动
词
this
这
那
these
that
those
This ___ my sister.
That ____ his brother.
He _____ my uncle .
These _____ her parents.
Those ____ her friends.
They _____ my family.
is
are
is
is
are
are
由 be 动词（am，is，are）引导的否定句结构是：
“主语+be +not + 其他部分”
简单地说：在be动词后面加not。
含有 be 动词的否定句。
This is a ruler.
-- This is not a ruler.
is not= isn’t
These are my brothers.
-- These are not my brothers.
are not= aren’t
1.那些不是琳达的书。
______ ______ Linda’s book.
2. 这不是我的哥哥。
This ______ my brother.
Those aren’t
isn’t
be 动词引导的一般疑问句
由 be 动词（am，is，are）引导的疑问句结构是：
“be + 主语 + 其他部分？”
简单地说：将句中的be动词提在句首，并大写。
Is this your brother ↗ 那是你的自行车吗？
肯定回答：Yes, 主语 + be (am, is, are)
否定回答：No, 主语 + be (am, is, are) not
注意：
this和that在一般疑问句中作主语时，在yes，no简短答语中只能用“it”。
--Is this/ that…
-- Yes, it is. / No, it isn’t.
注意：
these和those在一般疑问句中作主语时，在yes，no简短答语中只能用“they”。
--Are these/ those…
-- Yes, they are. / No, they aren’t.
-- Is this your mother
-- Yes, it is. / No, it isn’t.
-- Is that your father
-- Yes, it is. /No, it isn’t.
1. That is his grandpa. (变为一般疑问句)
__ ____ his grandpa (作肯定及否定回答: Yes, __ __. / No, __ _____.
句型转换。
Is that
it isn’t
it is
2. These are her parents. (变为一般疑问句)
____ _____ her parents (作肯定及否定回答)
Yes, _____ ____. /
No, ____ _______.
they are
Are these
they aren’t
小试牛刀
Are those your _________(bus)
---- _________those your parents （be）
These （baby） chickens are so cute.
—Are these your parents, Linda —Yes, _________.
A. they are B. he is C. they is D. they aren’t
练一练
Is this your （ruler）
（be） this Mary’s sister
Is （that） your class teacher
Is that his （China） teacher
Are these your （grandparent）
Are （this） her parents？
（be） those your uncle's ducks
Are those your grandpa’s （house）
ruler
Is
that
Chinese
grandparents
these
Are
houses

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