【題目】As there is less and less coal and oil, scientists are exploring new ways of making use of ______ energy, such as sunlight, wind and water for power and fuel.

A.primaryB.alternativeC.instantD.unique

【答案】B

【解析】

考查形容詞詞義辨析。句意：由于煤和石油越來越少，科學(xué)家們正在探索利用可替代能源的新方法，如太陽能、風(fēng)能和水作為能源和燃料。A. primary首要的, 初期的；B. alternative可選擇的, 可替代的；C. instant立即的, 迅速的；D. unique獨特的。根據(jù)“As there is less and less coal and oil”可知，石油和煤都越來越少，只好使用一些其它可替代這些燃料的東西。故選B。

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