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Unit 1 Great Scientists .单项填空 1．(2017·山东四市联考)We have come to the ________ that it would be unwise to accept his idea. A．suggestion B．conclusion C．plan D．promise 答案：B 考查名词词义。句意：我们得出结论接受他的想法非明智之举。come to the conclusion“得出结论”。 2．(2017·石家庄市质检一) Children________to difficult situations are better at handling those________tasks. A．exposing；challenging B．exposed；challenged C．exposed；challenging D．exposing；challenged 答案：C 考查非谓语动词。句意：暴露在困难处境中的孩子更容易处理那些富有挑战性的工作。第一空选exposed，因为expose与前面的the children构成逻辑上的动宾关系，所以选过去分词；第二空challenging意为“挑战性的”。 3．(2017·南昌二中月考)________ for the terrible accident, the director felt nervous and was at a loss what to do. A．Having blamed B．To blame C．Being to the blamed D．Being to blame 答案：D be to blame“该受责备，应承担责任”，此处指主管为这起重大事故负责，be to blame是固定用法，不用于被动语态。 | 
