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问题 问答题

某同学在实验室用如图所示的实验装置制取并收集干燥的氨气．请回答下列问题．

（1）制氨气反应的化学方程式为______．

（2）干燥管中的干燥剂可选用______（填序号）．

①无水硫酸铜  ②熟石灰 ③碱石灰

（3）加热一段时间后，用蘸有浓盐酸的玻璃棒接

近收集氨气的试管口，现象是______，反应的化学方程式为______．

（4）工业合成氨反应的化学方程式为______．

答案

（1）实验室用加热氯化氨和消石灰的固体混合物制取氨气，该反应为2NH4Cl+Ca（OH）2  

  △  
.
 
CaCl2+2NH3↑+2H2O，

故答案为：2NH4Cl+Ca（OH）2  

  △  
.
 
CaCl2+2NH3↑+2H2O；    

（2）干燥管中的干燥剂，氨气不能与干燥剂反应，且干燥剂且能吸水，无水硫酸铜与氨气反应，生成[Cu（NH3）4]SO4，所以不能，熟石灰为氢氧化钙，它不能与水发生反应，所以不能作干燥剂，故答案为：③；

（3）检验氨气是否集满，可以利用氨气的水溶液显碱性，即用“使湿润的红色石蕊试纸变蓝”；也可以用氨气遇浓盐酸产生白烟，即“用蘸有浓盐酸的玻璃棒放在瓶口，产生白烟”，

故答案为：产生白烟；NH3+HCl=NH4Cl；

（4）工业合成氨是用氢气和氮气在高温高压催化剂的条件下进行的，故答案为：N2+3H2

催化剂
.
高温高压
2NH3．

阅读理解
People unhappy with the rich: Poll
There is growing dissatisfaction toward rich people, according to a new online poll. The poll by the China Youth Daily in collaboration(与…合作) with Sina.com has highlighted the apparent discontent (不满)over the country’s widening income gap. Nearly 8,000 people filled in online questionnaires last week, and when asked to use three words to describe society’s rich, the top responses were "extravagant"(奢侈的), "greedy" and "corrupt".About 57 percent of those polled said that "extravagant" was the best word to describe the rich, followed closely by "greedy".Ironically, despite their dissatisfaction, 93 percent of those polled wished they could be rich too, and that richer people should be "socially responsible".Some 33 percent of respondents also praised rich people for being "smart".Nearly 90 percent of respondents agreed that most people in society, including themselves, were willing to speak up for the poor but were reluctant to take action and actually do something for them.The survey comes on the heels of a heated debate over comments made by renowned economist Mao Yushi, who said he was "speaking for the rich and working for the poor".A report released by the Asian Development Bank last Wednesday revealed that China’s Gini coefficient - an indicator of the wealth divide - rose from 0.407 in 1993 to 0.473 in 2004.
An earlier CASS report said that the richest 10 percent of Chinese families now own more than 40 percent of all private assets, while the poorest 10 percent share less than 2 percent of the total wealth.The country’s income disparity(悬殊) is close to that of Latin America, the report which came out in January, said.
  Theme
People unhappy with the rich
The poll by China Daily
Nearly 8,000 people filled in（36）_____ on the （37）_____last week.
There is an（38） _____ dissatisfaction tendency toward rich people.
Ironically, in （39）_____ of their dissatisfaction, 93 percent of the polled wished they could be rich too, and rich people should take “（40）______ responsibility”.
（41）______ ,Mao Yushi, said he was “speaking for the rich and working for the poor.”
A report （42）______ by the Asian Development Bank
The richest 10 percent of Chinese families now own more than 40 percent of all （43）_____ assets, while the poorest 10 percent （44）_____ for less than 2 percent of the total wealth.
The country’s income disparity is close to that of Latin America, the report came out in （45）______.
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单项选择题 A1型题

下列关于医学模式的说法，哪一项是错误的（）

A.生物医学模式是建立在近代生物学、化学、物理学和社会实践基础之上的医学模式

B.生物医学模式认为任何一种疾病都可在器官、细胞或生物大分子上找到可测量的、形态的或化学的改变

C.医学模式向生物-心理-社会医学模式的转变在本质上反映了医学道德的进步

D.生物医学模式对人类健康、疾病的认识是片面的，没有对医学起推动作用

E.20世纪下半叶开始，医学模式由生物医学模式逐渐转变为生物-心理-社会医学模式
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