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SAT官方每日一题附答案和解析[写作](2019年6月3日)

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Writing & Language

To show how a common desk fan cools a person, Rhett Allain, a physics professor and writer for Wired magazine, performed a simple experiment. He wet a paper towel with warm water and wrapped it around a thermometer. Allain wrapped a second thermometer in a dry paper towel, and then he set both thermometers in front of a fan. Initially the fan was turned off. The temperature of the thermometer wrapped in the wet paper towel decreased -- at first rapidly, then more slowly -- and eventually dropped below room temperature. After the fan was turned on, the temperature of the wet thermometer underwent another rapid decrease. Similarly, the temperature of the thermometer wrapped in the dry paper towel barely changed during the entire experiment. This experiment demonstrated the power of evaporation to cool wet objects, such as a sweaty person, and the role of a fan in making evaporation more effective.

A.NO CHANGE
B.By contrast,
C.Furthermore,
D.Therefore,

重点单词   查看全部解释    
[θə'mɔmitə]

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n. 温度计

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['lɔdʒikəl]

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adj. 符合逻辑的,逻辑上的,有推理能力的

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['tempritʃə(r)]

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n. 温度,气温,体温,发烧

 
['kɔntræst,kən'træst]

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n. 差别,对比,对照物
v. 对比,成对照<

 
[i'fektiv]

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k8凯发adj. 有效的,有影响的

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['sʌməri]

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n. 摘要
adj. 概要的,简略的

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[i'niʃəli]

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k8凯发adv. 最初,开头

 
[træn'ziʃən]

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n. 过渡,转变

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[i.væpə'reiʃən]

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k8凯发n. 蒸发,消失,脱水,干燥

 
[i'ventjuəli]

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adv. 终于,最后

 


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