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1、考研考博-考博英语-西安电子科技大学模拟考试题含答案1. 单选题Many of the former associates _ him when it became known how he had abused his position of trust.问题1选项A.turned againstB.held upC.convinced ofD.went on【答案】A【解析】【选项释义】A. turned against 反对；背叛；采取敌对态度 B. held up 举起；阻挡C. convinced of 使确信 D. went on 继续【答案】A【考查点】词组辨析。【解题思路】句意
2、：当他滥用职权的事情被曝光后，很多前同事都他。根据逻辑，因为他滥用职权，那么他的前同事应该是对他持反对态度的。因此选A。【干扰项排除】B、C、D选项均无法与空格前后构成相应逻辑关系。【句意】当他滥用职权被曝光后，许多前同事都转而反对他。2. 单选题It would be _ to get a second opinion before taking any further action.问题1选项A.sensationalB.sensitiveC.senselessD.sensible【答案】D【解析】【选项释义】A. sensational 轰动的；引起哗然的 B. sensitive 体贴
3、的；体恤的C. senseless 无意义的；无目的的 D. sensible 明智的；理智的【答案】D【考查点】形容词辨析。【解题思路】句意：在采取进一步行动之前征求第二种意见是。根据句意，在行动前征求第二种意见是明智的，因为这样有利于做出更好的决定。因此选D。【干扰项排除】A、B、C选项均不符合句意。【句意】在采取进一步行动之前征求第二种意见是明智的。3. 翻译题晶体管（transistor）与电子管（electron tube）相比有好多优点（advantage）。【答案】Transistor has many advantages over electron tube.4. 翻译题如果
4、把电压加到电路的两端，在电路中就会有电流流动。【答案】If the voltage is applied to both ends of the circuit, there will be current flow in the circuit.5. 单选题Do not belittle anyones contribution; these little gifts add up to large sums.问题1选项A.contemplateB.disparageC.appreciateD.prod【答案】B【解析】【选项释义】A. contemplate 沉思；深思熟虑 B. disp
5、arage 贬低；抨击C. appreciate 欣赏；感激 D. prod 刺激；督促【答案】B【考查点】动词辨析。【解题思路】句意：不要任何人的贡献；这些小礼物加起来是一大笔钱。由后半句可知，这些小的贡献是一大笔钱，也就是说每个人的贡献都很重要，不要轻视任何人的贡献。因此选B选项disparage“贬低；抨击”。划线词belittle意为“轻视；贬低”。【干扰项排除】A、C、D选项不符合句意。【句意】不要轻视任何人的贡献；这些小礼物加起来是一大笔钱。6. 单选题There are some earth phenomena you can count on, but the magnetic
6、 field, someday is not of them. It fluctuates in strength, drifts from its axis, and every few 100,000 years undergo, dramatic polarity reversala period when north pole becomes south pole and south pole becomes north pole. But how is the field generated, and why is it so unstable?Groundbreaking rese
7、arch by two French geophysicists promises to shed some light on the mystery. Using 80 meters of deep sea sediment (沉淀物) core, they have obtained measurements of magnetic-field intensity that span 11 polarity reversals and four million years. The analysis reveals that intensity appears to fluctuate w
8、ith a clear, well-defined rhythm. Although the strength of the magnetic field varies irregularly during the short term, there seems to be an inevitable long term decline preceding each polarity reversal. When the poles flipa process that takes several hundred thousand yearsthe magnetic field rapidly
9、 regains its strength and the cycle is repeated.The results have caused a stir among geophysicists. The magnetic field is thought to originate from molten (熔化的) iron in the outer core, 3,000 kilometers beneath the earths surface. By studying mineral grains found in material ranging from rocks to cla
10、y articles, previous researchers have already been able to identify reversals dating back 170 million years, including the most recent switch 730,000 years ago. How and why they occur, however, has been widely debated. Several theories link polarity flips to external disasters such as meteor impacts
11、. But Peter Olson, a geophysicist at the Johns Hopkins University in Baltimore, says this is unlikely if the French researchers are right. In fact, Olson says intensity that predictably declines from one reversal to the next contradicts 90 percent of the models currently under study. If the results
12、prove to be valid, geophysicists will have a new theory to guide them in their quest to understand the earths inner physics. It certainly points the direction for future research.1. Which of the following titles is most appropriate to the passage?2. The word “flip” (Para. 2) most probably means _.3.
13、 What have the two French geophysicists discovered in their research?4. The French geophysicists study is different from currently prevailing theories in _.5. In Peter Olsons opinion the French experiment _.问题1选项A.Polarity Reversal: A Fantastic Phenomenon of NatureB.Measurement of the Earths Magneti
14、c-Field IntensityC.Formation of the Two Poles of the EarthD.A New Approach to the study of Geophysics问题2选项A.declineB.intensifyC.fluctuateD.reverse问题3选项A.Some regularity in the changes of the earths magnetic field.B.Some causes of the fluctuation of the earths magnetic field.C.The origin of the earth
15、s magnetic field.D.The frequency of polarity reversals.问题4选项A.its identification of the origin of the earths magnetic fieldB.the way the earths magnetic intensity is measuredC.its explanation of the shift in the earths polarityD.the way the earths fluctuation rhythm is defined问题5选项A.is likely to direct further research in the inner physics of the earthB.has successfully solved the mystery of polarity reversals
