进阶训练
一、根据中文意思，完成句子或对话。
1. 天空为什么是蓝色的？
________ ________ the sky ________?
2. 你看上去如此累。为什么不休息呢？
You look so ________. ________ ________ ________ have a rest?
3. 我们为什么能在白天看见月亮？
________ ________ we ________ ________ ________ during the day?
4. 你为什么不喝一杯茶？
________ ________ you have a ________ of tea?
5. ——你为什么如此高兴？
——因为今天是我的生日。
—________ ________ you so ________?
—________ today is my birthday.
6. 他为什么如此伤心？
________ ________ he so sad?

1. Why is，blue
2. tired，Why don't you
3. Why do，see the moon
4. Why don't，cup
5. Why are，happy，Because
6. Why is

二、按要求完成句子。
1. We can't eat too many snacks because they are bad for us.（对画线部分提问）
________ ________ you eat too many snacks?
2. They can't get on the bus because the bus is full.（对画线部分提问）
________ ________ ________ get on the bus?
3. I have a fever, so I don't go to school.（对画线部分提问）
________ ________ ________ go to school?
4. Why don't you go to bed now?（改为同义句）
________ ________ go to bed now?

1. Why can't 2. Why can't they
3. Why don't you 4. Why not