围绕本课标题 Trapped in a mine 困在矿井里（矿井救援）主题，AI 老师会出 若干个简单问题，
每个问题听完后，用 完整句子口头作答。
⚠️ 尽量说完整句子，不要只说一个词；优先用本课句型与词语：Six men have been trapped in a mine / If they are not brought to the surface soon / may lose their lives / rescue operations are proving difficult / If explosives are used / vibrations will cause the roof of the mine to collapse / drilling a hole on the north side / bring the men up in a special capsule / a hard layer of rock beneath the soil / would have completed the job / As it is / have been drilling for sixteen hours / they still have a long way to go / which was lowered into the mine / keep in touch with their closest relatives / running out of food and drink / cheerful and confident / progressing smoothly / If they knew how difficult it was / they would lose heart