英语拓展听力与阅读八年级译林版
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（
B
）9. What can we learn from the passage?
A. If the ground is dark，light smoke can't be seen.
B. If you need some medicine，make a symbol Ⅱ.
C. The pilots make replies with a blue light at night.
D. Swinging your arm from side to side means "yes".
答案：B
解析：A项与文中“If the ground is dark, light smoke can be seen more easily.”不符；C项文中未提及蓝色灯，夜间回复用绿灯或红灯；D项由“Body signals”部分可知手臂左右摆动表示“不”；B项根据“Ground-to-air signals”中“Ⅱ: I need medicine.”可知正确，选B。
（
A
）10. What is the passage mainly about?
A. Ways of sending out signals on a lonely island.
B. Ways of receiving signals from a lonely island.
C. The importance of making signals on an island.
D. The explanation of building signals on an island.
答案：A
解析：文章主要介绍了在孤岛上处于困境时，如何通过身体信号、烟雾信号、地对空信号等方式向过往飞机发送信号，以及飞行员的回复信号，重点是发送信号的方法，所以选A。
