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lemon
pear
orange
banana
This is a lemon.
This is an orange.
This is a mango.
This is a banana.
an orange
a lemon
Is this ?
×
No,it isn’t.
Yes,it is.
√
Is this a pear?
No, no, it isn't.
Is this a lemon?
No, no,it isn't.
Is this a banana?
No,no, it isn't.
Is this an orange?
Yes,yes,it is.
Pair work ：
A：Nice to meet you ！
B：Nice to meet you too！
A：How are you？
B：I’m fine thank you.
A：Is this a/an _____?
B：Yes, it is./No, it isn’t.