1.healthy 健康的,  unhealthy 不健康的,  healthy food 健康食品,  unhealthy food 不健康食品.

2.I want ……….. for breakfast/lunch/dinner.

   我早餐/午餐/晚餐想吃...........

   ………….. is/are good/bad for you.

   ………..对你的健康好/不好

   I want some cheese for breakfast.

   Cheese is good for you.

   I want a cake for breakfast.

   Cake is bad for you.

   I want some vegetables for lunch.

   Vegetables are good for you.

   I want some fries for lunch.

   Fries are bad for you.

   I want some vegetable soup for dinner.

   Vegetable soup is good for you.

   I want a burger for dinner.

   Burger is bad for you.

3.Dialogue 1:

   A:  Mom, I am hungry.

   B:  What do you want for breakfast?

   A:  I want ………… for breakfast.

   B:  …….. is/are bad for you. Do you want ………. 

        for breakfast?

   A:  Okay. I like ………., too.

   B:  ……… is/are good for you. 

2.Dialogue 2:

   A:  Mom, I am hungry.

   B:  What do you want for lunch/dinner?

   A:  I want ………… for lunch/dinner.

   B:  …….. is/are bad for you. Do you 

         want ………. for lunch/dinner?

   A:  Okay. I like ………., too.

   B:  ……… is/are good for you.