外研版五年级英语上册《There are only nineteen crayons》PPT精品课件，共19页。
Five faces we can see.
Ten faces we can see.
Fifteen faces we can see.
Twenty faces we can see.
Let's say.
How many desks can you see?
How many chairs can you see?
How many books can you see?
How many crayons can you see?
Ask and answer.
How many crayons did Ms Smart buy?
She bought twenty.
Did she lose one?
No, she didn't.
Where is the one?
It is on the floor.
Retell the text.
Ms Smart bought twenty crayons yesterday.
Sam gave out the crayons. But there are only nineteen crayons.
Amy found a crayon on the floor.
Amy dropped it on the floor. Now there are twenty-one crayons.
practice.
There are ....
But there is/are ....
... ... ...
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