根据首字母及汉语提示，写出单词，完成句子。

1. We will use the sun to h    our homes.

2. Her     （女儿）is to be a film star in the future.

3. People will use m    to do some work on the farm.

4. Please write down these words on the         （纸）．

5. She is very busy today,so she doesn't have f         time to play with you.

6.I don't like the w    in Beijing. It's too windy.

7. The teacher writes on the blackboard with c ____.

8. It will get warm in North Pole, so the sea will be very     （汹涌的）．

9. It's very hot in summer in Hangzhou, so you'd better come in      （春天）．

10. There will be heavy rain and         （强大的）winds.

音速是指声音在海平面标准（）状态下的传播速度，为1227km/h。

A.风力

B.温度

C.大气压

D.湿度