专升本、四级英语考试解析（六十九）
发布时间：2021-11-12浏览：次
编辑：hongsheng
With the world’s population estimated to grow from six to nine billion by 2050, researchers, businesses and governments are already dealing with the impACT this increase will have on everything from food and water to infrastructure and jobs. Underlying all this (47) will be the demand for energy, which is expected to double over the next 40 years.
Finding the resources to meet this demand in a (48), sustainable way is the cornerstone of our nation’s energy security, and will be one of the major (49) of the 21st century. Alternative forms of energy – bio-fuels, wind and solar, to name a few – are (50) being funded and developed, and will play a growing (51) in the world’s energy supply. But experts say that even when ()52, alternative energy sources will likely meet only about 30% of the world’s needs by 2050.
For example, even with (53) investments, such as $93 million for wind energy development (54) in the American Recovery and Reinvestment ACT, important alternative energy sources such as wind and bio-fuels (55) only about 1% of the market today.
Energy and sustainability experts say the answer to our future energy needs will likely come from a lot of (56) – both traditional and alternative.
首先将15个备选词标上词性：
A. stable (a.) I. exACTly (ad.)
B. solutions (n.) J. consist (v.)
C. significant (a.) K. comprise (v.)
D. role (n.) L. competitions (n.)
E. proGREss (n.) M. combined (v.)
F. marvelous (a.) N. challenges (n.)
G. included (v.) O. certainly (a.)
H. growth (n.)
47、根据this确定此空必然填一单数名词，15词中D/E/H备选，E/H相似，其中必有一个答案，前文所说人口、能源消耗等，均只能用“增长”来指代，而不能说是进步；故选择H.growth，根据相似原则，E和H可以一起划去。
48、本空与后面的sustainable并列，于是需要填一个形容词，与“可持续”的意象相近的选项为A.stable（稳定的）。
49、本空前面为形容词major, 于是这里需要填入名词，之前还有one of，于是填入复数名词，在N与B中选。本句主语是“找寻”某资源，所以这被概括为一种挑战更为恰当，因此选择N.challenges。
50、本空所在句不缺任何成分，并且其还出现在被动语态be动词和实义动词之间，所以必然填入副词，I和O中O.certainly更为符合。
51、空前a growing表明此处填名词，再往前看有个动词play，因此填入D.role构成习语play a role
52、所在半句中除了when只有一个空，所以这空必然是非谓语动词作状语，选择M.combined，表示“即使当所有资源结合被使用时，这些替代资源也只能解决人类在2050年对能源需求的30%。”
53、空后Investments为名词，此处填入形容词，剩下形容词中只有C.significant可表示可观的、大量的，形容投资非常多。F项与其含义接近，根据相似原则，也可以一并划除。
54、本空出现在名词development之后，整句在such as所引导的例子里，本应为一整个名词性结构，而其后又有专有名词ARRA，于是此处应填入非谓语动词作development的后置定语，剩下词中只有G.included这一个。
55、空后有明显语言标志1%，因此这里应该选择表示组成、构成、占有的K.comprise, 根据相似原则，J也可以排除。
56、此处在a lot of之后，因此填入复数名词，整句意为“能源与可持续专家认为，日后能源需求的解决可能将来自于许多传统和替代的_______。”还剩下“解决方式”和“竞争”两个选项；B.solutions更符合语义。
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