问题 单项选择题

关于剥脱性角质松解症,正确的是()

A.瘙痒明显

B.合并局部多汗

C.有渗出

D.有过敏史

E.好发于手掌

答案

参考答案:B

阅读理解

阅读理解。

     The football player Ronaldinho from Brazil is a magician (魔术师) on the field. He looks one way while

  passing another.

     "God gives gifts to everyone," Ronaldinho, 26, once said. "Some can write, and some can dance. He

 gave me football skill." The Barcelona star became FIFA's World Player of the Year for the second year

  in a row in Switzerland (瑞士) on December 19.

     At times Ronaldinho seems to reinvent football.

     "I'm ugly but I've got charm," he jokes. "My game is all about improvisation (即兴发挥). I'm always

 trying new dribbles (盘球). In training, I try new tricks. "

     Coach Frank Rijkaard has fun watching Ronaldinho train. "When you're lucky enough to have a player

 like that you give him freedom to do what he wants." Rijkaard said. "It's up to him whether he wants to go

  left, right or middle. He just amazes me game after game."

     Raised by his mother after his father died, Ronaldinho was the youngest of three children born in a

  working family.

     "I grew up in a happy, musical house. Music and football were my life." he said. "If I hadn't been a

  footballer. I would have been a musician."

     Ronaldinho began to learn his skills at an early age. "I always loved dribbling in the living room, around

 the furniture or in the garden with my dog, " he once said.

1. Which country is Ronaldinho from?    

     ____________________________

2. What gifts does Ronaldinho believe that God gives him?

    ____________________________

3. What was Ronaldinho always doing in training?

    ____________________________

4. Was he the oldest of three children born in a working family?

    ____________________________

填空题

随着环保意识的增强,清洁能源越来越受人们关注。

(1)氢能在二十一世纪有可能在世界能源舞台上成为一种举足轻重的二次能源。

①硫-碘循环分解水制氢主要涉及下列反应:   

I.SO2+2H2O+ I2=H2SO4+2HI   

Ⅱ.2HIH2+I2   

Ⅲ.2H2SO4=2SO2+O2+2H2O

分析上述反应,下列判断正确的是_________(填序号,下同)。     

a.反应Ⅲ易在常温下进行    

b.反应I中SO2氧化性比HI强     

c.循环过程中需补充H2O     

d.循环过程中产生1 mol O2的同时产生1 mol H2    

②利用甲烷与水反应制备氢气,因原料价廉产氢率高,具有实用推广价值,已知该反应为:

  CH4(g)+H2O(g)=CO(g)+3H2(g)   ΔH =+206.1 kJ·mol-1   

若800℃时,反应的平衡常数K1=1.0,某时刻测得该温度下,密闭容器中各物质的物质的量浓度分别为:c(CH4)=3.0 mol·L-1;c(H2O)=8.5 mol·L-1;c(CO)=2.0 mol·L-1;c(H2)=2.0 mol·L-1,则此时正逆反应速率的关系是v正___________(填“>”、“<”或“=”) v逆。 

③实验室用Zn和稀硫酸制取H2,反应时溶液中水的电离平衡____________移动(填“向左”、“向右”或“不”);若加入少量下列试剂中的_____________,产生H2的速率将增大。     

a.NaNO3    b.CuSO4     c.Na2SO4    d.NaHSO3  

(2)甲醇是一种可再生能源,具有开发和应用的广阔前景,工业上一般可采用如下反应来合成甲醇:   CO(g)+2H2(g) CH3OH(g) 分析该反应并回答下列问题:    

①下列各项中,不能说明该反应已达到平衡的是______________。     

a.恒温、恒容条件下,容器内的压强不发生变化     

b.一定条件下,CH3OH分解的速率和CH3OH生成的速率相等     

c.一定条件下,CO、H2和CH3OH的浓度保持不变     

d.一定条件下,单位时间内消耗1 mol CO,同时生成l mol CH3OH   

②如图是该反应在不同温度下CO的转化率随时间变化的曲线。       

T1和T2温度下的平衡常数大小关系是K1____________(填“>”、“<”或“=”) K2。  

③已知甲醇燃料电池的工作原理如图所示。   

该电池工作时, b口通入的物质为____________,该电池正极的电极反应式为:______________,工作一段时间后,当6.4 g甲醇(CH3OH)完全反应生成CO2时,有___________mol电子发生转移。