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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2023-11-17  23
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] 【C4】
选项 A、while
B、when
C、who
D、as
答案 C
解析 语法题及上下文题该句的意思为“边开车边发短信的司机其前行及横向(lateral)控制都会比不发短信的司机受到更多的阻碍(impairment)”。who为定语从句关系代词。
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