问题 选择题

在研究合成氨方法的历史上,不同的研究者曾3次获诺贝尔化学奖。合成氨大大提高了农作物的产量,同时也是制取硝酸、炸药等的原料。下列说法中正确的是

A.N2和H2在点燃或光照条件下可合成氨气

B.氨和HNO3都是电解质

C.氨气遇到浓硝酸会发生反应产生大量白烟

D.由NH3制HNO3的过程中,氮元素被还原

答案

答案:C

题目分析:A、N2和H2在高温、高压、催化剂条件下才能合成氨,点燃或光照则不能反应,错误;B、硝酸是电解质,在水中NH3本身不能电离,故氨是非电解质,错误;C、浓硝酸挥发出的硝酸蒸气与氨气易化合,生成白色的NH4NO3固体小颗粒分散在空气中,故产生白烟,正确;D、氮元素由—3价升为+5价,被氧化,错误。

阅读理解

第三部分:阅读理解(共20小题,每题2分,共40分)

第一节:(共15小题,每题2分,共30分)

阅读下面四篇短文,从四个选项(A、B、C、D)中,选出最佳选项,并在答题卡上将该项涂黑。

A

Recently, a professor of philosophy in the United States has written a book called Money and the Meaning of Life. He has discovered that how we deal with money in our day-to-day life has more meaning than we usually think. One of the exercises he asked his students to do is to keep record of every penny they spend for a week. From the way they spend their money, they can see what they really value in life.

He says our relation with others often becomes clearly defined when money enters the picture. You might have wonderful friendship with somebody and you think that you are a very good friend. But you will know him only when you ask him to lend you some money. If he does, it brings something to the relationship that seems stronger than ever before. Or it can suddenly weaken the relationship if he doesn’t. This person may say that he has a certain feeling, but if it is not carried out in the money world, there is something less real about it.

Since money is so important to us, we consider those who possess a lot of it to be very important. The author interviewed some millionaires in researching his book.

Question: What is the most surprising thing you have discovered abotrt being rich, because you are a self-made man?

Answer: The most surprising thing is how people give me so much respect. I am nothing. I do not know much. All I am is rich.

People just have an idea of making more and more money, but what is it for? How much do I need for any given purposes in my life? In his book, the professor uncovered an important need in modern society: to bring back the idea that money is an instrument rather than the end. Money plays an important role in the material world, but expecting money to bring happiness may be missing the meaning of life.

56. The author seems to believe that asking your friend to lend you some money_______.

A. is a good way to test your friendship     B. will do harm to your friendship

C. will strengthen your friendship           D. is a good way to break off your friendship

57. What can we learn about the millionaire from his answer in the interview?

A. He does not feel that he is well educated.

B. He does not think that he is a very important person.

C. He doesn’t think that being rich is worth so much attention.

D. He does not consider himself to be very successful

58. What does the American professor of philosophy want to explain in his book?

A. Money is an end.         B. Money is a means.

C. Money is everything.      D. Money is unimportant.

59. Which of the following might the author disagree with?

A. Money is important in modern society.

B. The meaning of life does not completely lie in money.

C. Wealth will surely bring the owner happiness.

D. Happiness is not necessarily the result of wealth.

多项选择题