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Do you ever feel like the weather is out to get you? All week long, it seems, you sit inside at school while the sun shines outs
Do you ever feel like the weather is out to get you? All week long, it seems, you sit inside at school while the sun shines outs
admin
2009-01-15
60
问题
Do you ever feel like the weather is out to get you? All week long, it seems, you sit inside at school while the sun shines outside. Then, as soon as the weekend comes, the sky turns gray. There’s rain in the forecast.
In some ways, you may be right. Weekend weather differs from weekday weather in certain places, say researchers who studied more than 40 years of weather data from around the world. They focused on temperature differences between daytime highs and nighttime lows. This difference measurement is called the daily temperature range, or DTR.
Part of the study involved 660 weather stations in the continental United States. At more than 230 of these sites, the average DTR for Saturday, Sunday, and Monday was different from the average DTR for Wednesday, Thursday, and Friday, the researchers found. The difference was small only several tenths of a Celsius degree-but the pattern was striking enough to make the scientists take notice.
In the southwestern U. S., temperature ranges were typically broader on weekends. In the Midwest, weekdays saw larger daily temperature variations.
This sort of weekly rise and fall doesn’t line up with any natural cycles, the researchers say. Instead, they blame human activities, possibly air pollution from those activities, for these weather effects. For example, tiny particles in the air could affect the amount of cloud cover, which would in turn affect daily temperatures.
So, tiny windborne particles from California, generated on weekdays, might first affect weather close to home in the southwest, then later influence midwestern weather.
It looks like your weekend weather has a lot to do with which way the wind blows and where it comes from.
选项
A、the sky always turns gray only on weekends.
B、in the Midwest, weekdays saw larger daily temperature variations sometimes.
C、this difference measurement is called DTR, meaning the daytime temperature range.
D、part of the study involved 660 weather stations only in the United Nation.
答案
C
解析
[A]the sky always turns gray only on weekends.与原文不一致。[B]in the Midwest,weekdays saw larger daily temperature variations sometimes.与原文不一致。[C]this difference measurement is called DTR,meaning the daytime temperature range.与原文一致。[D]part of the study involved 660 weather stations only in the United Nation.与原文不一致。所以本题答案为[C]。
转载请注明原文地址:https://kaotiyun.com/show/ZUAd777K
本试题收录于:
公共英语二级笔试题库公共英语(PETS)分类
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公共英语(PETS)
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