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  3. A timely study in the journal Human Factors suggests why texting while drivi

A timely study in the journal Human Factors suggests why texting while drivi

游客2024-10-20  29
问题     A timely study in the journal Human Factors suggests why texting while driving is riskier than talking on a cell phone or with【C1】______passenger. Human factors/ergonomics researchers at the University of Utah found that texters in a driving simulator had more【C2】______, responded more slowly to brake lights on cars【C3】______them, and showed impairment in forward and lateral control than did drivers【C4】______talked on a cell phone while driving or drove without【C5】______. Researchers Frank Drews and colleagues found evidence that attention【C6】______differ for drivers who text versus those who【C7】______on a cell phone. In the【C8】______case, the researchers say, "drivers apparently attempt to【C9】______attention between a phone conversation and driving,【C10】______the processing priority of the two activities depending on task demands." 【C11】______texting requires drivers to【C12】______their attention from one task to the other. When such attention-switching occurs as drivers【C13】______, read, or receive a text, their overall reaction【C14】______are substantially slower than when they’re engaged in a phone conversation. The type of texting activity also appears to make a difference; in this study, reading messages【C15】______braking times more than did composing them.
    The【C16】______of texting while driving continue to receive broad national and international attention as accident rates【C17】______to this practice increase. The crash risk attributable to texting is substantial. One possible explanation is that drivers who text tend to decrease their minimum following distance and also experience【C18】______reaction time.【C19】______, in the Drews et al. study, drivers’【C20】______reaction time increased by 30% when they were texting and 9% when they talked on the phone, compared with their performance in a driving-only condition. [br] 【C11】
选项 A、However
B、But
C、Because
D、Therefore
答案 B
解析 逻辑关系题 上句中提到“驾车者试图把注意力分配在驾车与通电话之中，并且根据需要分配其重要性”，下文提到“发短消息则需要驾车者把注意力从一行为转移到另一行为”，所以文章表示两种情况的比较，上下文为转折关系，因此排除because和therefore；but与however均表示转折关系，但是however在使用时通常在其后加逗号，原文中没有，此处不符合习惯用法，所以答案为B．but。
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