As there is less and less coal and oil, scientists are exploring new ways of mak

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.

primary

alternative

instant

unique

优质答案

正确答案

本题考查形容词辨析

B选项，题干大意为：因为煤和石油越来越少，所以科学家就需要找到新的像太阳能、水能、风能等产生动力的替代类资源。alternative “供选择的，选择性的，交替的”，符合题意。综上，B选项正确。

A选项，primary“主要的”，故排除。

C选项，instant“紧迫的”，故排除。

D选项，unique“独一无二的”，故排除。

故正确答案为B项。

解析

解析同上

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