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        The terms “global warming” and “climate change” are used by many, seemingly interchangeably. But do they really mean the same thing?

        Scientists shaped the history of the terms while attempting to accurately describe how humans continue to alter the planet. Later, political strategists adopted the terms to influence public opinion.

        In 1975, geochemist Wallace Broecker introduced the term “climate change” in an article published by Science. In 1979, a National Academy of Sciences report used the term “global warming” to define increases in the Earth’s average surface temperature, while “climate change” more broadly referred to the numerous effects of this increase, such as sea-level rise and ocean acidification (酸化).

        During the following decades, some industrialists and politicians launched a campaign to sow doubt in the minds of the American public about the ability of fossil-fuel use, deforestation and other human activities to influence the planet’s climate.

        Word use played a critical role in developing that doubt. For example, the language and polls expert Frank Luntz wrote a memo encouraging the use of “climate change” because the phrase sounded less scary than “global warming”, reported the Guardian.

        However, Luntzi’s recommendation wasn’t necessary. A Google Ngram Viewer chart shows that by 1993 climate change was already more commonly used in books than global warming. By the end of the next decade both words were used more frequently, and climate change was used nearly twice as often as global warming.

        NASA used the term “climate change” because it more accurately reflects the wide range of changes to the planet caused by increasing amounts of greenhouse gases in the atmosphere.

        The debate isn’t new. A century ago, chemist Svante Arrhenius started one of the first debates over the potential for humans to influence the planet’s climate. Arrhenius calculated the capability of carbon dioxide to trap heat in the Earth’s atmosphere, but other chemists disagreed. Some argued that human weren’t producing enough greenhouse gases, while others claimed the effects would be tiny. Now, of course, we know that whatever you call it, human behavior is warming the planet, with grave consequences ahead.

53. What did industrialists of the late 20th century resort to in order to mislead Americans?

A
Made-up survey results.
B
Hired climate experts.
C
False research findings.
D
Deliberate choice of words.
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答案:

D

解析:

解析:D。根据题干中的industrialists和mislead Americans可定位至第四段。该段表示,在接下来的几十年里,一些工业家和政治家发起了一场运动,使美国公众心中对化石燃料使用、森林砍伐和其他人类活动是否会影响地球气候心生疑虑。随后在第五段第一句说到,措辞的使用(word use)在引发这种怀疑中起了关键作用,并引用了《卫报》的例子来说明,使用不同的措辞对民众会产生不同的心理影响,也就是说,措辞的选用是会误导民众的,故D项符合题意。

错项排除:编造的调查结果、雇佣气候专家和伪造的研究结果在原文中均没有依据,故排除A、B、C三项。

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