问题 阅读理解

阅读理解。

     Many People have to work on the weekend. Some people do not mind. Other people think it is

terrible.One man thinks that working on the weekend can be dangerous. He is Graham Coates. Mr

Coates worked in an office in Brighton , England.

    On Saturday, May 24 , 1986 , he went to the office to do some work. When he got in the elevator to

go home, it stopped between floors. Mr Coates could not get out of the elevator. He was trapped

(困住了)! He started to shout,but no one heard him. Then Mr Coates remembered  that it was a holiday

in England. No one was going to come to work until Tuesday !

    There was nothing for Mr Coates to do. He had to wait until one of his coworkers came to work

and found him. With nothing to eat or drink, Mr Coates ended up sleeping for most of the time.

    Early on Tuesday morning, the vice-president of the company came into work and found the

elevator was not working. When the elevator was opened,  Mr Coates came out cold,weak,and tired.

He had been in the elevator for sixty-two hours !

    Now Mr Coates says, "I only use elevators if they have telephones in them. "

1. Mr Coates could not get out of the elevator because         .

A. it was broken

B. it was a weekend

C. it was a holiday

D. it stopped on a wrong floor

2. How long did he stay in the elevator?

A. Twenty-four hours.

B. From Saturday to Monday.

C. More than sixty hours.

D. From Tuesday to Saturday.

3.What did he do in the elevator most of the time?

A. Shouted and screamed.

B. Slept and waited.

C. Telephoned his boss.

D. Ate and drank

4.How did he make his way out in the end?

A. The vice-president found him .

B. Someone opened the elevator.

C. The elevator began to work on Tuesday.

D. He found a door in the elevator.

5. What is the best title for this story?

A. An Interesting Elevator

B. A Busy Weekend

C. Elevator Safety

D. Trapped in an Elevator

答案

1- 5 ACBBD

单项选择题
填空题

(1)臭氧可用于净化空气、饮用水消毒、处理工业废物和作为漂白剂。

①臭氧几乎可与除铂、金、铱、氟以外的所有单质反应。如:

6Ag(s)+O3(g)=3Ag2O(s);△H=-235.8 kJ/mol。

己知:2 Ag2O(s)=4Ag(s)+O2(g);△H=+62.2kJ/mol,则O3转化为O2的热化学方程式为          ;②科学家P.Tatapudi等人首先使用在酸性条件下电解水的方法制得臭氧。臭氧在阳极周围的水中产生,阴极附近的氧气则生成过氧化氢,阴极电极反应式为                                         

时间/min浓度(mol/L)NON2CO2
01.0000
100.580.210.21
200.400·300.30
300.400.300.30
400.320.340.17
500.320.340.l7
 

(2)用活性炭还原法处理氮氧化物,有关反应为: C(s)+2NO(g)N2(g)+CO2(g)。某研究小组向某密闭的真空容器(假设容器体积不变,固体试样体积忽略不计)中加入NO和足量的活性炭,恒温(T1℃)条件下反应,反应进行到不同时间测得各物质的浓度如下:

①10 min~20 min以内v(CO2)表示的反应速率为                      

②根据表中数据,计算T1℃时该反应的平衡常数K=        (保留两位小数);

③下列各项能作为判断该反应达到平衡状态的是   (填序号字母);

A.容器内压强保持不变

B.2v(NO)=v(N2)

C.容器内CO2的体积分数不变

D.混合气体的密度保持不变

④30 min时改变某一条件,反应重新达到平衡,则改变的条件可能是    

⑤一定温度下,随着NO的起始浓度增大,则NO的平衡转化率   (填“增大”、“不变”或“减小”)。