问题 阅读理解

Mr. Read was born in a small village with high mountains all around it.He has few fields and he can’t get enough food for his family.He’s often worried about it.So he works harder and harder and tries his best to get more money.

One afternoon,Mr. Read went out to look for some grass for his cows.It was very hot and he had to have a swim.Suddenly he saw a big tortoise(乌龟) in the water.He swam there and caught it.The next morning he went to the town to sell it in the market.When he was walking in the street.a car hit him down and he was hurt.He was sent to hospital at once.The doctors looked him over and had an operation off him.Two weeks later he felt much better.The doctors were satisfied with the operation and said.“You’ll be fully recovered in a week.We’re sure you can write when you leave hospital.”

“It’s really a miracle(奇迹)!”  shouted Mr. Read,“I could neither read nor write before!”

小题1:Mr. Read’s ___________ was hurt in the traffic accident

A.head

B.1eg

C.right hand

D.foot小题2:Which is true according to the article?

A.Mr. Read has a few fields.

B.One afternoon,he went out for some rice

C.That day he caught a rabbit

D.Mr. Read can’t read or write at all.小题3:How was the operation?

A.Very successful.

B.Not very good.

C.Rather bad.

D.Terrible.小题4:In Chinese the  phrase “be fully recovered ” means _______.

A.完全覆盖

B.全部找回

C.恢复疲劳

D.恢复健康小题5:What the doctor said meant that __________.

A.he did a very successful operation

B.the farmer was lucky enough to write after the operation

C.the accident helped the farmer to write

D.he taught the farmer to write while he was staying in hospital

答案

小题1:C

小题2:D

小题3:A

小题4:D

小题5:A

题目分析:这篇短文中根本不会读写的农民,在车祸后从医生口中听到自己能读写了,很兴奋。其实他是误会医生的意思了,医生的意思只是他的手恢复健康了。因为医生根本不知道他不会写字。

小题1:结合常识我们都用右手写字,及We’re sure you can write when you leave hospital.”的描述,可知选C,他的右手受伤了。

小题2:根据shouted Mr. Read,“I could neither read nor write before!”可知选D,他以前根本不睡读书写字。

小题3:根据Two weeks later he felt much better.及下文描述,可知手术很成功。故选A。

小题4:联系下文他能够写字和出院,可知是恢复健康的意思。故选D。

小题5:结合语境可知医生的意思是,手术很成功。故选A。

点评:本文浅显易懂,各个小题都能在文中找到适当依据。只要认真阅读短文,注意前后联系,就能顺利完成阅读。文章所设试题主要考察细节查找,做题关键是找出原文的根据,认真核查小题和原文的异同。

填空题

天然气、煤炭气(CO、H2)的研究在世界上相当普遍。其中天然气和二氧化碳可合成二甲醚,二甲醚与水蒸气制氢气作为燃料电池的氢能源,比其他制氢技术更有优势。主要反应为:

①CH3OCH3(g) +H2O(g) 2CH3OH(g)    △H= 37Kj·mol-1

②CH3OH(g)+H2O(g) 3 H2(g)+CO2(g)   △H =49Kj·mol-1

③CO2(g) +H2(g) CO(g) +H2O(g)      △H=41.3Kj·mol-1

其中反应③是主要的副反应,产生的CO对燃料电池Pt电极有不利影响。

请回答下列问题:

(1)二甲醚可以通过天然气和CO2合成制得,该反应的化学方程式为                    

(2)CH3OCH3(g)与水蒸气制氢气的热化学方程式为                           

(3)下列采取的措施和解释正确的是                 。(填字母序号)

A.反应过程在低温进行,可减少CO的产生

B.增加进水量,有利于二甲醚的转化,并减少CO的产生

C.选择在高温具有较高活性的催化剂,有助于提高反应②CH3OH的转化率

D.体系压强升高,虽然对制取氢气不利,但能减少CO的产生

(4)煤炭气在一定条件下可合成燃料电池的另一种重要原料甲醇,反应的化学方程式为:

CO (g) +2H2(g) CH3OH(g) △H <0。现将l0mol CO与20mol H2置于密闭容器中,在催化剂作用下发生反应生成甲醇,CO的平衡转化率()与温度、压强的关系如下图所示。

①自反应开始到达平衡状态所需的时间tA         tB(填“大于”、“小于”或“等于”)。

②A、C两点的平衡常数KA            KC(填“大于”、“小于”或“等于”)。

(5)某工作温度为650oC的熔融盐燃料电池,是以镍合金为电极材料,负极通人煤炭气(CO、H2),正极通人空气与CO2的混合气体,用一定比例的Li2CO3和Na2CO3混合物做电解质。请写出正极的电极反应式   ____                                  

多项选择题