例题2 (2025·江西高一"三新"联考) Why is Kathy unable to talk on the phone?
A. It's noisy.
B. Her battery is low.
C. The signal is poor.
正确答案：B
听力原文：
M: Hello Kathy. This is Mark. We're thinking of going to the... would you?
W: Hi Mark. Sorry, can you speak up a bit, hello?
M: Sorry, I'm in the subway and the signal's not so good. Can you hear me right now?
W: Ah yes, that's better. But please hold on. My battery's about to die. Can I call you back later?
重点句翻译
Hi Mark. Sorry, can you speak up a bit, hello?
Trans.: 嗨，Mark。不好意思，你能稍微大点声说话吗？喂？
I'm in the subway and the signal's not so good.
Trans.: 我现在在地铁里，信号不太好。
But please hold on. My battery's about to die.
Trans.: 你先稍等一下，我的手机快没电了。
分析
根据句意可容易看出，该段对话发生于朋友在打电话时信号不好（男生）、手机快没电（女生）时的对话。选项C中的 "signal's not so good" 是男生提及到的，这是男生那边的问题，不是Kathy不能通话的原因。而对话中Kathy说 "My battery's about to die"，对应选项B "Her battery is low."（Trans.: 她手机电池电量低），因此选择B项。