______research in genetic engineering, the government has offered to pay up to 50 percent of the cost to build the Genetic Engin

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问题 ______research in genetic engineering, the government has offered to pay up to 50 percent of the cost to build the Genetic Engineering Institute.

选项 A、To promote
B、For the promotion
C、By promoting
D、As a promotion

答案A

解析 语法:to不定式1.空格内应填入一个动词引导空格后的宾语,因此(B)、(D)选项排除。2.to不定式和动名词都具备基本动词的作用,政府支持遗传工程研究所是“为了促进遗传工程的研究”,因此表目的的不定式结构(A)为正确选项。(C)选项一ing意为“通过……的手段”,与文章原意不符。
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