Lesson88 Trapped in a mine 困在矿井里
课文原文：
Six men have been trapped in a mine for seventeen hours。 If they are not brought to the surface soon they may lose their lives。 However, rescue operations are proving difficult。 If explosives are used, vibrations will cause the roof of the mine to collapse。 Rescue workers are therefore drilling a hole on the north side of the mine。 They intend to bring the men up in a special capsule。 If there had not been a hard layer of rock beneath the soil, they would have completed the job in a few hours。 As it is, they have been drilling for sixteen hours and they still have a long way to go。
Meanwhile, a microphone, which was lowered into the mine two hours ago, has enabled the men to keep in touch with the closest relatives。 Though they are running out of food and drink, the men are cheerful and confident that they will get out soon。 They have been told that rescue operations are progressing smoothly。 If they knew how difficult it was to drill through the hard rock, they would lose heart。
译文：
6个人被困在矿井里已有17个小时了。如果不把他们尽快救到地面上来，他们就有可能丧生。然而，事实证明营救工作非常困难。如果用炸药爆破，震动会引起矿顶塌落。因此，营救人员在矿井的北侧钻了一个洞。他们准备用一种特制的容器把这6个人救上来。如果不是因为土壤下面有一层坚硬的岩石，他们的营救工作仅用几个小时就可以完成了。实际情况是，他们已连续钻了16个小时了，但离钻透还早着呢。与此同时，两个小时以前放下井去的一只麦克风使井下的人可以与其亲属保持联系。虽然他们的食物和饮料都快消耗尽了，但这些人的心情很好，坚信他们很快就会出去。他们一直被告知营救工作进行得非常顺利。如果他们知道了钻透那坚硬的岩石有多么困难，他们会丧失信心的。
笔记：
下是文本中涉及的语法点和知识点：
现在完成时 (Present Perfect Tense)：文本中使用了现在完成时的动词形式，如 “have been trapped,” “have been drilling,” 表示已经发生的动作或事件，对当前情况有关联。
例子：”Six men have been trapped in a mine for seventeen hours.”
虚拟语气 (Conditional Mood)：文本中包含了条件句，如 “If they are not brought to the surface soon,” “If explosives are used,” “If they knew how difficult it was,” 用于表示条件和假设情况。
例子： “If they are not brought to the surface soon, they may lose their lives.”
关联词 (Conjunctions)：文本中使用了关联词来连接句子和短语，如 “however,” “meanwhile,” “though,” 用于引导并列、对比或时间关系的信息。
例子： “However, rescue operations are proving difficult.”
从句 (Clauses)：文本中包含了不定式从句 “to collapse,” 以及条件从句 “if they knew how difficult it was,” 用于添加额外信息或说明。
例子： “If explosives are used, vibrations will cause the roof of the mine to collapse.”
时间表达 (Time Expressions)：文本中使用了时间表达方式，如 “for seventeen hours,” “for sixteen hours,” “two hours ago,” 用于描述事件发生的时长和时间线。
例子： “Six men have been trapped in a mine for seventeen hours.”
这些语法和语言元素构成了一段关于紧急救援的叙述，描述了被困矿井中的人们以及救援工作的情况和进展。同时，文本中运用了虚拟语气和条件句，用于探讨可能的后果和情况。
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