职称英语理工类A级考试真题及答案.doc
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1、2012年职称英语理工类A级考试真题及答案2012年职称英语考试理工类A级试题及答案一、词汇选项:1.We almost ran into a Rolls-Royce that pulled out in front of us withoutsignaling.A. overtook B. hit C. passed D. found2.He shifted his position a little, in order to alleviate the pain in hisleg.A. control B. ease C. experience D. suffer3.Our aim wa
2、s to update the health service, and we succeeded.A. offer B. provide C. fund D. modernize4.Every week the magazine presents the profile of a well-known sportspersonality.A. description B. success C. evidence D. plan5.All the flats in the building had the same layout.A. color B. size C. function D. a
3、rrangement6.Newborn babies can discriminate between a mans and a womans voice.A. treat B. express C. distinguish D. analyze7.The weather was crisp and clear and you could see the mountains fiftymiles away.A. hot B. heavy C. fresh D. windyA. teach B. help C. attract D. discourage9.When I heard the no
4、ise in the next room, I couldnt resist have a peep.A. chance B. look C.visit D. try10.Her comments about men are utterly ridiculous.A. slightly B. partly C. faintly D. completely11.He was weary of the constant battle between them.A. fond B. proud C. tired D. afraid12.She moves from one exotic locati
5、on to another.A. unusual B. familiar C. similar D. proper13.He has been granted asylum in France.A. protection B. power C.relief D. license14.The photographs evoked memories of ourA. stored B. blocked C.erased D. refreshed15.The walls are made of hollow concrete blocks.A. empty B.big C. long D. new二
6、、阅读判断Europaswatery underworldEuropa, one of Jupiters 63 known moons,looks bright and icy on the surface. But appearances can be deceiving: Mileswithin its cracked, frigid shell, Europa probably hides giant pools of liquidwater. Where scientists find liquid water, they hope to find life as well.Since
7、 we cant go diving into Europasdepths just yet, scientists instead have to investigate the moons surface forclues to what lies beneath. In a new study, scientists investigated one groupof strange ice patterns on Europa and concluded that the formations mark thetop of an underground pool that holds a
8、s much water as the U.S. Great Lakes.Pictures of Europa, which is slightlysmaller than Earths moon, clearly show a tangled, icy mishmash of lines andcracks known as “chaos terrains.” These chaotic places cover more than half ofEuropa. For more than 10 years, scientists have wondered what causes thef
9、ormations. The new study suggests that they arise from the mixing of vastunderground stores of liquid water with icy material near the surface.For scientists who suspect that Europaalso may be hiding life beneath its icy surface, the news about the new lake isexciting.“It would be great if these lak
10、esharbored life,” Britney Schmidt, a planetary scientist who worked on the study,told Science News. “But even if they didnt, they say that Europa is doingsomething interesting and active right now.”Schmidt, a scientist at the University of Texas at Austin, and her colleagueswanted to know how chaos
11、terrains form. Since they couldnt rocket to Europa tosee for themselves, they searched for similar formations here on Earth. Theystudied collapsed ice shelves in Antarctica and icy caps on volcanoes in Iceland. Thosefeatures on Earth formed when liquid water mixed with ice. The scientists nowsuspect
12、 something similar might be happening on Europa: that as water and iceof different temperatures mingle and shift, the surface fractures. This wouldexplain the jumbled ice sculptures.“Fracturing catastrophically disruptsthe ice in the same way that it causes ice shelves to collapse on Earth,”Schmidt
13、told Science News. She and her team found that the process could becausing chaos terrains to form quickly on Europa.The new study suggests that on thismoon, elements such as oxygen from the surface blend with the deep bodies ofwater. That mixture may create an environment that supports life.16.The l
14、iquid water of an underground pool of Europa is estimated xxxxx of the US Greatlakes.A. Right B. Wrong C. Not mention17.The strange ice patterns on Europa are formed as a result of a xxxxx undergroundwater pool.A. Right B. Wrong C. Not mention18.Europa is the most recently discovered one among Jupit
15、ersA. Right B. Wrong C. Notmention19.The size of Europa is a bit larger than that of Earths moon.A. Right B. Wrong C. Not mention20.Schmidt and her colleagues are the first group of scientists xxxxx Europa.A. Right B. Wrong C. Not mention21.The formations on Europas surface are rather unique in theA
16、. Right B. Wrong C. Not mention22.The existence of liquid water is a necessity for a life-supportA. Right B. Wrong C. Not mention三、概括大意与完成句子Learnabout Noble Gases(惰性气体)1 Have you ever ridden on a balloon? Many tourist spots offer balloon rides inorder for people to see the beauty of a place from abo
17、ve. A balloon contains anoble gas called helium(氦). Formerly, balloons contained hydrogenbut hydrogen is very flammable and dangerous when uncontrolled. Therefore, peopleshifted to helium, which is safer. Helium is safe because it has the propertiesof the noble gases.2 People once believed that nobl
18、e gases couldnt chemically react at all. Forthis reason, they were called inert gases(惰性气体). They werealso listed under Group 0 in theold periodic table because scientists believed that the gases have zero valence(价)electrons in their outer shell. This was later proven to be untrue when somenoble ga
19、s compounds were discovered.3 Thegases are elements, which share similar properties. These properties includebeing monoatomic, colorless, odorless, being able to conduct electricity, andhaving low chemical reactivity. Noble gases include Helium, Neon, Argon,Krypton, Xenon and Radon. These are all fo
20、und in Group 18, in the rightmostcolumn of the periodic table. If you look at the periodic table,you willnotice that these elements are the only ones, which do not have a charge.Helium has the lowest molecular(分子的) weight whileRadon is the heaviest.4 Remember that chemical reactions occurbecause ato
21、ms have valence electrons, which are electrons in their outer shell.When the outer shell is “unfilled” or the required number of electrons is notyet complete, the atom is more reactive. Noble gases have a full outer shell,meaning that they have complete electrons in their outer shell. This completen
22、umber varies. For instance, the outer shell of Helium has 2 valence electronswhile the outer shell of Xenon has 8 electrons. Nowadays, there remains to be afew noble gases because of the low chemical reactivity of these said gases.A. what is theperiodic table?B. What are noblegases?C. What causes th
23、e lowchemical reactivity of noble gases?D. How were noblegases discovered?E. How were noblegases understood in the past?F. what are theapplications of noble gases?5because of their properties, noble gases have many importantapplications. They are widely used in medicine and industries. For instance,
24、liquid Helium is used for superconducting magnets(磁体).These magnets are very important in physics and medicine. When a doctorsuspects that a persons brain has been damaged, he might request for MagneticResonance Imaging(MRI). MRI allows the doctor to “see” the brain, withoutoperating on the patient.
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