四、我会猜。读一读，想一想，写出物品名称。(20分)

1. They're sweet. They're cold. Some are yellow. Some are green. Some are brown. Some are pink. In summer，children like to eat them very much. They're ________.

2. It is a kind of colour. Mix it with red. We can see pink. Mix it with black. We can see grey. It's ________.

3. It is sweet. But it isn't juice. Some is round，and some is long. Don't eat too much. It is not good for our teeth(牙齿). It's ________.

4. We can't see it on the street. We can't see it in the river. We can see it in the sky. It's very big. It flies very fast. It is not a bird. It's a ________.