文档介绍：Unit 3
This is my sister.
Section B
a book
books
That is a book.
This is a book.
These are books.
Those are books ,too.
These are my erasers.
Those are your pencil sharpeners.
This is an orange.
These are oranges.
That is her pencil.
Those are her pencils.
Is that his pencil case?
Yes,it is.
No, it isn’t.
Is this your pencil?
Are these your keys?
Yes, they are.
Are those her pens?
No, they aren’t.
A:Are these your ……?
A :Are those your ….?
B :Yes ,they are .
B:No,they aren’t.
be动词表示“是”,有三个:am ,is, are.
我(I)用(am),
你(you )用(are),
is连着他(he)、她(she)、它(it),
单数跟is 后,复数全部都用are.
单数
复数
this
that
is/am
these
those
are
变为疑问句:
is my clock.
is your ring.
are her books.
are his oranges.
are my backpacks.
Is this your clock?
Is that your ring?
Are these her books?
Are those his oranges?
改错:
this your book?
is my pen.
these his pencils?
those her ruler?
Is this your book?/Are these your books?
That is my pen./Those are my pens.
Are these his pencils?
Are those her rulers?
Are those your backpacks?
they your books?Yes,they’re.
Are they your books?Yes,they are.