1. 读一读，根据情景判断分别是什么课程

P.E.    science    music    math

1. （1） Teacher: What's seventy and eleven?

   Students: Eighty-one.

   Subject:

3. （2） Teacher: Boys, ready? Go!

   Students: Come on (加油)! Come on!

   Subject:

5. （3） Teacher: Light travels (传播) faster than sound (声音).

   Students: But why?

   Subject:

7. （4） Teacher: Let's sing the song sunlight (《阳光》).

   Students: OK.

   Subject: