问题 单项选择题

以下五个城市当中,()不是金砖五国首都。

A.北京

B.圣彼得堡

C.新德里

D.巴西利亚

E.开普敦

答案

参考答案:B

写作题

第二节 读写任务(共1题,满分25分)

阅读下面短文,然后按照要求写一篇150词左右的英语短文。

As I got into a taxi one afternoon, the driver was very angry about something that had happened to him earlier that day. Here’s how he told the story:

“One of my fares (旅客) left a wallet in my cab this morning. Nearly three hundred dollars in it. I spent more than an hour trying to trace the guy. Finally I found him at his hotel. He took the wallet without a word and glared at me as though I’d meant to steal it.”

“He didn’t give you a reward?” I asked.

“Not a cent. But it wasn’t the money I wanted,” he fumbled, then exploded, “If the guy had only said something…”

Why was the driver so upset? All he wanted was something simple, but even more valuable than money: to be thanked for his efforts. In short, what he wanted, what he needed but did not get, was a little bit of gratitude.

[写作内容]

1.概括故事的内容要点,以此引入话题,该部分的词数大约30;

2.以约120个词就“感激”这个主题发表你的看法,至少包含以下内容要点:

1)什么是感激(gratitude)?

2)感激的表现方式。

3)表达感激最重要在于真诚(sincere)。

4)故事的启示和你的结论。

[写作要求]

你可以使用实例或其他论述方法支持你的论点,也可以参照阅读材料的内容,但不要抄袭阅读材料中的句子。

2. 作文中不能出现真实姓名和学校名称。

[评分标准]

概括准确,语言规范,内容合适,篇章连贯

问答题

科学家一直致力于“人工固氮”的方法研究.

(1)目前合成氨的技术原理为:(g)+3H2(g)⇌2NH3(g);△H=-92.4kJ/molN2

该反应的能量变化如图1所示.

①在反应体系中加入催化剂,反应速率增大,E2的变化是:______.(填“增大”、“减小”或“不变”).

②将一定量的N2(g)和H2(g)放入1L的密闭容器中,在500℃、2×107Pa下达到平衡,测得N2为0.1mol,H2为0.3mol,NH3为0.1mol.该条件下H2的转化率为______.

③欲提高②容器中H2的转化率,下列措施可行的是______.

A.向容器中按原比例再充入原料气

B.向容器中再充入惰性气体

C.改变反应的催化剂

D.液化生成物分离出氨

(2)1998年希腊亚里士多德大学的两位科学家采用高质子导电性的SCY陶瓷(能传导H+),从而实现了高转化率的电解法合成氨.其实验装置如图2所示.阴极的电极反应式为______.

(3)根据最新“人工固氮”的研究报道,在常温、常 压、光照条件下,N2在催化剂(掺有少量Fe2O3和TiO2)表面与水发生下列反应:2N2(g)+6H2O(l)4NH3(g)+3O2(g);△H=a kJ/mol

进一步研究NH3生成量与温度关系,常压下达到平衡时测得部分实验数据如下:

T/K303313323
NH3生成量/(10-6mol)4.85.96.0
①此合成反应的a______0.(填“大于”、“小于”或“等于”)

N2(g)+3H2(g)2NH3(g);△H=-92.4kJ/mol

②已知

O2(g)+2H2(g)2H2O(l);△H=-571.6kJ/mol则2N2(g)+6H2O(l)4NH3(g)+3O2(g);△H=kJ/mol

(4)NH4Cl溶液呈酸性,这是由于N

H+4
水解的缘故.则NH4Cl在重水(D2O)中水解的离子方程式是______.