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鎮ㄧ幇鍦ㄧ殑浣嶇疆锛 棣栭〉 > SAT > SAT姣忔棩涓棰 > 姝f枃

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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, and then more slowly, eventually dropping below room temperature. After the fan was turned on, the temperature of the wet thermometer underwent another rapid decrease. By contrast, 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.objects, such as a sweaty person
C.objects such as, a sweaty person,
D.objects -- such as a sweaty person

閲嶇偣鍗曡瘝   鏌ョ湅鍏ㄩ儴瑙i噴    
temperature ['tempritʃə(r)]

鎯充竴鎯冲啀鐪

n. 娓╁害锛屾皵娓╋紝浣撴俯锛屽彂鐑

 
thermometer [θə'mɔmitə]

鎯充竴鎯冲啀鐪

n. 娓╁害璁

鑱旀兂璁板繂
evaporation [i.væpə'reiʃən]

鎯充竴鎯冲啀鐪

n. 钂稿彂锛屾秷澶憋紝鑴辨按锛屽共鐕

 
contrast ['kɔntræst,kən'træst]

鎯充竴鎯冲啀鐪

n. 宸埆锛屽姣旓紝瀵圭収鐗
v. 瀵规瘮锛屾垚瀵圭収<

 
initially [i'niʃəli]

鎯充竴鎯冲啀鐪

adv. 鏈鍒濓紝寮澶

 
effective [i'fektiv]

鎯充竴鎯冲啀鐪

adj. 鏈夋晥鐨勶紝鏈夊奖鍝嶇殑

鑱旀兂璁板繂
element ['elimənt]

鎯充竴鎯冲啀鐪

n. 鍏冪礌锛屾垚鍒嗭紝缁勬垚閮ㄥ垎锛(澶嶆暟)鎭跺姡澶╂皵

 
effectively [i'fektivli]

鎯充竴鎯冲啀鐪

adv. 浜嬪疄涓婏紝鏈夋晥鍦

 
eventually [i'ventjuəli]

鎯充竴鎯冲啀鐪

adv. 缁堜簬锛屾渶鍚

 

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