时文阅读第13期 | 中考短文填空：“Normal” temperatures are not so hot

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“Normal” temperatures are not so hot

    When you visit the doctor, the doctor usually checks to see    1   your temperature is “normal”. Now, new research suggests that the “normal” temperature of humans has been dropping over the last 200 years.

    Human beings    2    warm-blooded animals. So our bodies need to work hard to stay at the same temperature. Our bodies make heat from the food we eat.We also have other ways to     3    our temperatures constant (恒定的). For example, we will sweat when we’re hot or get goose bumps (鸡皮疙瘩) when we’re cold.

    Though human temperatures can all be a little    4    , most doctors consider 37℃ to be normal. That’s been true since 1851, when a German doctor called Carl Reinhold August Wunderlich studied 25,000 patients. His results showed an average human body temperature of 37℃.

    But over time, other scientists studying body temperatures have gotten results with lower average temperatures.

    For example, a 1992 study found an average temperature of 36.8℃. In 2017, scientists looked at the temperatures of 35,000 patients in Britain and found their temperatures were 36.6℃ on average. Many people believed that the differences were because   5    mistakes in the earlier measurements.

    Now a new group of researchers says, on average, human body temperature   6    to have been dropping 0.03℃ every 10 years. The obvious question is “Why?”. One of the researchers says clearly, “We don’t know.”

Still, the scientists do have a few possible explanations.

    One explanation could be simply that humans have become    7    over time. Science and medicines have gotten better, and doctors have found many ways to improve the health of their patients.

    The scientists also say it’s possible    8  things like heating and air-conditioning help make it.With them, humans don’t have to work so hard to control their body heat, and can run at a lower temperature.

    It’s important to remember that this story is about averages.In the real world, different people   9    different temperatures.

    But no matter what your temperature is today, it probably would’ve been higher if you had lived 200 years ago and that’s     10     cool!

语言知识点：

measurement /'meʒəmənt/ n. 测量；衡量

拓展：take/make measurements 量尺寸

measure v. 测量；度量；估量

n. 措施；方法

eg. Take measurements of the room before you buy any new furniture.

参考答案

1.if    2.are    3.keep   4.different 5.of   6.seems  7.healthier 8.that   9.have    10.pretty

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