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托福阅读中，分类别逻辑也是常考查的高频逻辑之一。主观题和客观题目都有涉及，但以客观题为主。 （1）如TPO中的这道细节题 Paragraph 2：During wakefulness, breathing is controlled by two interacting systems. The first is an automatic, metabolic system whose control is centered in the brain stem. It subconsciously adjusts breathing rate and depth in order to regulate the levels of carbon dioxide (C02,) and oxygen (02,), and the acid-base ratio in the blood. The second system is the voluntary, behavioral system. Its control center is based in the forebrain, and it regulates breathing for use in speech, singing, sighing, and so on. It is capable of ignoring or overriding the automatic, metabolic system and produces an irregular pattern of breathing. 题目：According to paragraph 2, all of the following are true of the voluntary breathing system EXCEPT: 选项A ：It has its control center in the brain stem 这个段落里将two interacting systems 分成两个类别，题目是找出不属于第二个类别的表述，选项A属于第一个类别特点，选项的设置采用了张冠李戴。 （2）再如TPO中的这道细节题 Paragraph 5 ：The causes of this population rebound are consequences of other human actions. First, the major predators of deer---wolves, cougar, and lynx--have been greatly reduced in numbers. Second, conservation has been insured by limiting times for and types of hunting. But the most profound reason for the restoration of high population numbers has been the gate of the forests. Great tracts of lowland country deforested by logging, fire, or both have become ideal feeding grounds of deer. | 
