P24 R-1-2 2. Listen, number and colour. 听一听，给下列图片标序号并涂颜色。

1. This is my hand. Colour it yellow.

2. Look at me. I have a red nose"and"blue ears.

3. I see a green eraser"and"a brown crayon.

4. I have a blue bag"and"an orange ruler.