2019年mba考试英语模拟题——其他468

{1}Many people think that it is ______making such an experiment.
A.worthwhile
B.worth
C.worthy
D.valuable
解析：词义辨析。Worthwhile (adj) 值得的worthwhile 用于下列句型It is worthwhile doing sth./ to do sth.  干某事是值得的worth  用于下列句型：sth. is worth sth/ doing此句型中只能用doing， 不能使用被动。 worthy 用于下列句型：sth. be worthy of sth/ being done     sth. be worthy to be done。故选A。
本题选A。
{02}--- What should I do before operating the new machine?
--- You’d better read its ______ first carefully.
A.explanations
B.instructions
C.descriptions
D.introductions
解析：本题考查名词的词义辨析。explanations“解释，说明”；instructions“说明，指南”；descriptions“描绘，描写”；introductions“介绍，前言”。所以，根据句意应选B。
等。k+s-5#u 
本题选B。