第二节 (共 15 小题; 每小题 1.5 分, 满分 22.5 分)
听下面 5 段对话或独白。每段对话或独白后有几个小题，从题中所给的 A、B、C三个选项中选出最佳选项。听每段对话或独白前，你将有时间阅读各个小题，每小题 5 秒钟； 听完后，各小题将给出 5 秒钟的作答时间。每段对话或独白读两遍。
听第6段材料，回答第6、7题。
听第 10 段材料, 回答第 17 至 20 题。
17. What will be provided for the listeners?
A. Clothes. B. Gloves. C. Breakfast.
18. What should the listeners do with fruit?
A. Leave it untouched.
B. Place it in the red bag.
C. Put it into a special container.
19. What should the listeners do if they cut their hands?
A. Seek help from fellow participants.
B. Visit the nearest hospital.
C. Turn to the speaker.
20. What is the main purpose of the talk?
A. To give instructions.
B. To promote a program.
C. To welcome the listeners.