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问题 填空题

如图所示，A、B、C三个装置的烧杯中分别盛有足量的CuCl2溶液．

（1）A、B、C三个装置中属于电解池的是______．

（2）A池中Cu是______极，A池中总反应的离子方程式为______．

（3）B池中C电极上发生______反应（填“氧化”或“还原”），B池中总反应的化学方程式为______．

（4）C池中Cu是______极，电极反应为______．反应过程溶液中C（Cu2+）______（填“变大”“变小”或“不变”）．

答案

（1）BC装置都有外接电源，所以是把电能转化为化学能的装置，属于电解池，故选BC；

（2）该装置是原电池，较活泼的金属锌作负极，铜作正极，锌和铜离子发生氧化还原反应生成锌离子和铜单质，所以A池中总反应的离子方程式为Zn+Cu2+=Zn2++Cu，

故答案为：Zn+Cu2+=Zn2++Cu；

（3）B电池中，C连接原电池负极，所以C是阴极，阴极上得电子发生还原反应，电解池工作时，阴极上铜离子得电子发生还原反应，阳极上氯离子失电子发生氧化反应，所以电池反应式为：CuCl2

 电解 
.
 
Cl2↑+Cu，故答案为：还原；CuCl2
 电解 
.
 
Cl2↑+Cu；

（4）铜连接原电池的正极，所以是阳极，铜是活泼电极，所以电解池工作时，阳极上铜失电子生成铜离子而不是溶液中阴离子失电子，电极反应式为Cu-2e-=Cu2+，因为阳极上铜失电子进入溶液，阴极上铜离子得电子生成铜单质，阳极上溶解的铜等于阴极上析出的铜，所以溶液中铜离子浓度不变，故答案为：阳；Cu-2e-=Cu2+；不变．

选择题
下列各句括号内说明了该句的修辞手法，说得不正确的一项是：
[ ]
A．音响就越大了，战鼓声，金锣声，呐喊声，叫号声……像千军万马混战了起来。（排比、比喻）
B．那种感情，是凯旋的骑士对战马的感情，是“仰手接飞猱，俯身散马蹄” 的射手对良弓的感情。（引用、比喻、对偶）
C．纺车总是安安稳稳地呆在那里，像露出头角的蜗牛，像着陆停驶的飞机。（拟人、比喻）
D．在我们的脚下，波浪轻轻吻着岩石，像朦胧欲睡似的。（拟人、比喻）
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阅读理解

Two policemen stopped Andrew Kershaw in his sports car one night, because he was speeding in the street of the town. The young man was very drunk. He knew he was in trouble, so he decided to make fun of them. He was a law-student at the university, so he knew the law very well, better than most people.     

When the policemen came to his car, Andrew asked one of the policemen to write down in his notebook everything they said. The policeman had to do this because it is the law, although people don’t usually know it. The policeman tested Andrew’s breath and the breathalyser showed that he had too much alcoho1(乙醇）in his blood. This all took a long time because the policeman had to write down everything that he or the policeman said.                                              

In the end, by law, the policeman had to ask Andrew if he wanted to say anything. Andrew decided that he had two things to say and the policemen had to write down. The first thing was “Please don’t hit me again, officer!” And the second thing was :" Does the other officer want ￡5,too?" Of course, the poor policeman had to read this in court, in front of the judge, and he was very embarrassed (难堪). Andrew, who was in court, thought it was very funny, until the judge took away his licence for a year and fined him ￡100, ￡90 for drunk driving, and ￡10 for his rudeness!

小题1: The policemen stopped Andrew in his car because ______.

A．it was very late　　

B．he was drunk

C．he was driving too fast　　

D．he hardly broke the law小题2:The policeman had to write down ______.

A．everything the two policemen said

B．everything Andrew said

C．everything they all said

D．everything either of them said
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