________ the difficult maths problem, I have consulted Professor Russell several
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________ the difficult maths problem, I have consulted Professor Russell several times.A.Working out | B.Worked out | C.To work out | D.Work out |
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答案
C |
解析
试题分析:考查非谓语动词的用法。句意:为了解出那道数学难题,我已经向Russell教授咨询过好几次了。非谓语动词中只有不定式可作目的状语,题干中缺少目的状语,故选C。 【知识拓展】不定式在句子中可作什么状语? 1)目的状语。To… only to (仅仅为了), in order to, so as to, so(such)… as to… (如此……以便……) 如:He ran so fast as to catch the first bus. 他飞快地跑以便赶上第一班车。I come here only to say good-bye to you. 我来仅仅是向你告别。 2)作结果状语,表事先没有预料到的,要放在句子后面。 如:What have I said to make you angry?我说什么让您生气了?He searched the room only to find nothing.他搜查了房间什么也没找到。 3) 表原因。如:I"m sorry to hear your father is ill听说你父亲病了很难过。 |
举一反三
The secretary worked late into the night, ________ a long speech for the president.A.to prepare | B.preparing | C.prepared | D.was preparing |
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