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问题 选择题

已知下列化学反应：

3A(g)+B(g)C(s)+4D(g)；正反应放热图中a、b分别表示在一定条件下，D的体积分数〔φ(D)〕随反应时间t的变化情况。若使曲线b变为曲线a，可采取的措施是(    )

A.增大B的浓度                        B.降低反应温度

C.缩小容器体积                         D.加入催化剂

答案

CD

该反应C为固体，是等积反应。b变为a，φ(D)未变，只是相当于同等程度改变正、逆反应速率。

问答题 简答题

试述子宫内膜组织学的周期性变化。
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写作题

第二节 读写任务（共1小题，满分25分）

阅读下面的短文，然后按照要求写一篇150词左右的英语短文。

The U.N. Climate Change conference opened in Copenhagen, Denmark on Dec.7th with some 15,000 delegates and observers from nearly 200 countries attending what is called the last best chance for an agreement to combat global warming.

Most scientists believe the warming trend is mainly caused by human activity, especially the use of fossil fuels (化石燃料) and the cutting down of forests. In Copenhagen, experts and officials alike are putting the emphasis on what people and governments can do to cut the emission (排放) of greenhouse gasses. Scientists say a 25 to 40 percent cut in carbon-dioxide emissions is needed to control global warming.

A youthful online group that calls itself the "Low-Carbon Tribe" is leading the way to an eco-friendly lifestyle. Tribe members, who range in age from 20 to 40, say they are trying to reduce carbon dioxide emissions in a relaxed and fashionable way. Helping save the planet is part of their daily routine, they claim, citing the way they dress, what they eat and how they travel.

[写作内容]

1. 以约30个词概括这段短文的内容；

2. 然后以约120个词就“低碳生活”进行议论，内容包括：

（1）低碳生活所包含的出行方式，节能等方面，并具体举例说明；

（2）简要谈低碳生活的好处。

[写作要求]

1. 在作文中可以使用自己亲身的经历或虚构的故事，也可以参照阅读材料的内容但不得直接引用原文中的句子；

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。
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