1.What is this/that?这是/那是什么？It’s a/an...它是...
2.Is this/that...?这是/那是...吗？Yes,it is.是的，它是。

No,it isn’t.不，它不是。

3.What are these/those?它们是什么？They are...它们是...
4.Are these/those...?这些/那些是...吗？Yes,they are.是的，它们是。

No,they aren’t.不，它们不是。

练习：
一．单选
1.Look，what is _____?It’s an eraser.
A.this
B.that
C.these
D.those
2.Are _____your watches over there?
A.this
B.that
C.these
D.those
3.______this your friend?
A.is
B.Are
C.Is
D.are
4.______those his dictionaries?
A.is
B.Are
C.Is Dare
5.Is that Mary’s schoolbag?_________
A.Yes,it isn’t.
B.No,it is.
C.Yes,it’s.
D.No,it isn’t.
6.Is this your friend?_______
A.Yes,he is.
B.Yes,it is.
C.No,its not.
D.Yes,I am.
7.Are these Helen’s pencils?_______
A.Yes,they’re.
B.No,they are.
C.Yes,they are.
D.No, it is.
8.What are those?______
A.They are box.
B.They are boxes.
C.It’s a box.
D.Yes,they are.
9.What is this in English?______
A.Its an eraser.
B.It’s a eraser.
C.It’s my an eraser.
D.It’s my eraser.
二．按要求改写句子
1.Is this your pen?(作否定回答)
2.Are those Kate’s parents?(作肯定回答)
3.These are oranges.(对划线部分提问)
4.Those are my cousins.(对划线部分提问)
5.Is this her dictionary?(改为复数)
6.Those aren’t my watches.(改为单数)。