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问题 写作题

书面表达。

以“Last Sunday”为题写一篇短文，描述一下你上周日进行的活动。

要求：1．语法正确，条理清晰，字迹工整、规范。2．不少于5句话。

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答案

Last Sunday

       Last Sunday I was busy but I was very happy. In the morning I did my homework. And I played computergames. It was very interesting. At noon I ate my favourite food. In the afternoon I played football with my friend.In the evening I prepared something for school tomorrow. Then I watched cartoons I love Sunday.答案不唯一

选择题

用CH4催化还原NOx可以消除氮氧化物的污染．

例①CH4（g）+4NO2（g）=4NO（g）+CO2（g）+2H2O（g）；△H=-574kJ/mol

②CH4（g）+4NO（g）=2N2（g）+CO2（g）+2H2O（g）；△H=-1160kJ/mol，

下列说法不正确的是（　　）

A．由反应①可推知：CH4（g）+4NO2（g）=4NO（g）+CO2（g）+2H2O（l）；△H＜-574kJ/mol

B．等物质的量的甲烷分别参加反应①、②，反应转移的电子数不同

C．若用标准状况下4.48L CH4还原NO2至NO，放出的热量为114.8kJ

D．若用标准状况下4.48L CH4还原NO2至N2，整个过程中转移的电子总数为1.6mol
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选择题

社会责任感的集中表现是：

A．不言代价与回报

B．不言代价与回报的奉献精神

C．有奉献精神

D．有回报意识
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