大家约好明天去郊游，可天气怎样呢？小明同学说他刚看过电视，小明在黑板上画了几个图形，请你说出天气状况（　　）

 在寒冬季节，小明同学双手搓后感觉手上发热，这是通过____ 的方式改变手的内能．这与柴油机工作中____  冲程的能量转化相同．

读全球近地面气压带和风带局部示意图，完成下题．

根据短文内容，用方框中所给词的适当形式填空。

Dear Han Mei,

      Thank you for your letter. I  ____  China very much. And I  ____  to go to China with my parents. We want ____ Beijing. I know something ____ China from your letters. ____. I don't know much about Chinese food. Could you tell    ____ something about it?
I like  ____  and fish very much. You tell me you ____ eat rice, vegetables and chicken.   And your ____  food is jioazi. What kind of food   ____  drink can I have in China? Please tell me.