[al:新概念英语（二）] [ar:MP3 同步字幕版（英音）] [ti:SOS] [by:更多学习内容，请到chazidian.com搜索“新概念”] [00:13.19]How did the woman get help? [00:18.14]When a light passenger plane flew off course some time ago, [00:23.05]it crashed in the mountains and its pilot was killed. [00:28.04]The only passengers, a young woman and her two baby daughters, were unhurt. [00:36.59]It was the middle of winter. [00:38.87]Snow lay thick on the ground. [00:42.74]The woman knew that the nearest village was miles away. [00:48.02]When it grew dark, she turned a suitcase into a bed and put the children inside it, [00:56.46]covering them with all the clothes she could find. [01:00.84]During the night, it got terribly cold. [01:05.64]The woman kept as near as she could to the children [01:09.52]and even tried to get into the case herself, but it was too small. [01:16.30]Early next morning, [01:18.11]she heard planes passing overhead and wondered how she could send a signal. [01:25.27]Then she had an idea She stamped out the letters 'SOS' in the snow. [01:34.85]Fortunately, a pilot saw the signal and sent a message by radio to the nearest town. [01:42.89]It was not long before a helicopter arrived on the scene to rescue the survivors of the plane crash.