1 When will the strongest winds come according to the authorities?
A. On Thursday. B. On Friday.
C. On Saturday. D. On Sunday.

2 When the wind speed reaches Force 10, ____.
A. underground trains will be stopped
B. services on the ground will be stopped
C. all kinds of transportation will be stopped
D. train drivers with special skills are needed

3 What measures has the Beijing Municipal Forestry and Parks Bureau taken?
A. It has stopped all park water transport services.
B. It has sent over 40,000 forest workers to check parks and trees.
C. It has controlled train speeds on ground-level subway lines.
D. It has advised citizens to avoid entering mountainous areas.

4 What can we infer about the forest fire danger warnings?
A. Red warnings are less serious than orange warnings.
B. All districts in Beijing gave red warnings for forest fire danger.
C. People can enter mountainous areas freely during red warnings.
D. Red warnings mean stricter fire control measures.

5 What is the main purpose of the article?
A. To introduce the weather changes in Beijing.
B. To tell people how to protect themselves from strong winds.
C. To warn people about the forest fire danger in Beijing.
D. To show the measures Beijing has taken to deal with strong winds and related dangers.

1.C 细节理解题。由第三段可知，最强风力将于周六到来。
2.A 推理判断题。由第五段可知，当风速达到9级（每秒24.4米）或更高时，地面和高空线路的服务将停止。也就意味着当风力达到十级时，地铁将停运。
3.B 细节理解题。由第八段可知，北京市园林绿化局启动了应急方案，并派出4万多名林业工人检查全市的公园、绿地、园林设施和树木。
4.D 推理判断题。由倒数第二段中的“...red warnings for forest fire danger, which means no outdoor fires are allowed”可知，红色预警意味着禁止一切野外用火，这体现了更严格的防火措施。
5.D 写作目的题。文章开篇指出北京采取特别行动应对强风，如地铁服务的调整，接着提到大风预警级别、交通方面的应对措施、园林绿化局的行动以及森林火险预警等内容，整体围绕北京针对强风及相关危险所采取的一系列行动展开。