Tpo24阅读分析(7)

8. It can be inferred from paragraph 5 that a very mild irritation during sleep will likely cause the sleeping person to

○increase the breathing effort

○wake up and remove the source of irritation

○cough while still sleeping

○stop breathing temporarily while still sleeping

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以irritation做关键词定位至最后一句，说如果irritation太严重，睡着的人就会醒，按照正常的叙述顺序应该是先叙述mild的情况，前一句果然在说coughing reflex没产生cough，而产生了cessation of breathing，呼吸停止的状况，所以答案是D。C与原文相反；B是severe的时候才有的，A没说

(4)

paragraph5: ...This reflexive adjustment is totally absent during NREM sleep. Only after several inadequate breaths under such conditions, resulting in the considerable elevation of carbon dioxide and reduction of oxygen in the blood, is breathing effort adjusted. Finally, the coughing reflex in reaction to irritants in the airway produces not a cough during sleep but a cessation of breathing...

9. The word considerable meaning to

○significant ○Steady ○Usual ○necessary

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considerable可观的，相当的，重要的，所以正确答案是significant。原文说在若干次inadequate breaths之后，二氧化碳含量怎么上升氧气含量下降，才能调整breathing，一