B

    It's 14:00. The house is quiet(安静的). "Tom?" Mom says. No one answers.

    Mom comes to Tom's house. He is not in the bed. But his model plane is on the desk. "He is not in his room, and he is not in the yard(院子)," Mom thinks. Then Mom comes to his grandparents' room. Tom likes to play with Grandpa's tape player. But he is not there.

    Mom looks for(寻找) him everywhere. But where is Tom? Mom is worried. She wants to call Dad. She comes to the living room to get the phone.

    "What's that?" Mom sees something(某物) black under the sofa. Oh, it's Paul, Tom's dog. It loves sleeping(睡觉) there. But what is next to Paul? It's Tom!

根据文章的意思和所给空格填入所缺单词。
    Do you know apples? Have you ever e____apples? What funny questions! You know I'm t____about the apple products(产品) from the USA. Now, there are m____of apple fans in China. Many of t____are teenagers. The price of apple products is very h____but people think they are b____modern and fashionable, as if they are from the future. It is said that there is a student who would like to s____his kidney（肾）to buy an i-phone. In fact, it is not n____for students to own the expensive mobile phones because even you can use the most common one to play games, chat on QQ with friends o____search on the Internet. The biggest use of a mobile phone is making c____and in most schools mobile phones are forbidden(禁止).

给下列多音字组词。

率lǜ____      shuài____

降jiàng____   xiáng____

“结束了封建专制统治，也沉重打击了欧洲其他国家封建制度”的资产阶级革命（    ）

①爆发的标志是攻占巴士底狱

②主要领导人有罗伯斯庇尔

③转折点是萨拉托加大捷

④颁布了限制王权的《权利法案》

自然灾害的频发足以毁灭我们的地球，灾害中常有如下现象发生，其中属于化学变化的是（   ）