Six men have been trapped in a mine for seventeen hours. If they are not brought to the surface soon they may lose their 【小题1】 (life). However, rescue operations are 【小题2】 (prove) difficult. If explosives are used, vibrations will cause the roof of the mine 【小题3】 (collapse). Rescue workers are therefore drilling a hole on the north side of the mine. They intend to bring the men up in 【小题4】 special capsule. 【小题5】 there had not been a hard layer of rock beneath the soil, they would have pleted 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 【小题6】 (low) 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 【小题7】 drink, the men are 【小题8】 (cheer) and confident that they will get out soon. They have been told that rescue operations are progressing 【小题9】 (smooth). If they knew how difficult it was to drill 【小题10】 the hard rock, they would lose heart.lives
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(答案→)lives
解析：文章讲述六个人被困在矿底下，救援人员对他们的施救过程。
【小题1】句意：如果他们没有能够被带到地面，很快就会失去生命。因为是their所以名词life用复数。
【小题2】然而，救援工作证明是很难的。Prove表示“证明是”的时候，是连系动词，不能用被动，和be动词连用应该用proving。
【小题3】如果使用爆炸，震动会导致矿场的顶部倒塌。这里使用了cause sb to do sth.
【小题4】他们打算用一个特殊的胶囊将矿工从下面带上来。用不定冠词a，泛指“一个特殊的胶囊”。
【小题5】如果在泥土下面没有一层厚厚的岩石层，他们就会在几小时之内完成这个工作。这里用if引导条件状语从句。
【小题6】同时，一个麦克风被放低进入煤矿里面。这里需要动词lower“放低”，因为是被动关系，用is lowered。
【小题7】虽然他们的水和食物快用完了。Food和drink是并列关系。用and.
【小题8】这些人很兴奋，相信很快就能出去了.这里需要形容词.填cheerful.
【小题9】他们被告知救援工作进展很顺利。修饰副词：progressing应该用副词.
【小题10】如果他们知道很难钻通坚硬的岩石，他们就会灰心了.这里用介词“through”，表示“穿过”。