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1、第一部分：词汇选项(第 115 题，每题 1 分，共 15 分)下面每个句子中均有 1 个词或者短语有括号，请为每处括号部分确定 1 个意义最为接近的选项。1.He shifted his position a little in order to (alleviate) the pain in his leg.A.control B. ease C. experienceD. suffer2.Our aim was to (update) the health service, and we succeeded.A.offer B. provide C. modernize D. fund3
2、.She moves from one (exotic) location to another.A.unusualB. familiar C. similar D. proper4.Nothing would (induce) me to vote for him again.A.teachB. help C. discourage D. attract5.The photographs (evoked) strong memories of our holiday in France.A.refreshed B. stored C. blocked D. erased6.The weath
3、er was (crisp) and clear and you could see the mountains fifty miles away.A.hot B. heavy C. fresh D. windy7.Every week the magazine presents the (profile) of a well-known sports personality.A.success B. description C. evidence D. plan8.Her comments about men are (utterly) ridiculous completely.A. sl
4、ightlyB. completely C. partly D. faintly9.The walls are made of (hollow) concrete blocks.A . big B. empty C. long D. now10. We almost (ran into) a Rolls-Royce that pulled out in front of us without signaling.A. overtook B. hit C. passed D. found11. When I heard the noise in the next room, I couldnt
5、resist having a (peep).A.chance B.visit C. look D. try12. He has been granted (asylum) in France.A.power B. relief C. protection D. license13.He was (weary) of the constant battle between them.A. fond B. tired C. proud D. afraid14.Newborn babies can (discriminate) between a mans and a womans voice.A
6、. treat B. distinguish C. express D. analyzes15. All the flats in the building had the same (layout).A. color B. size C. function D. arrangement【博大考神答案】：alleviateeaseupdatemodernizeexoticunusualinduceattractevokedrefreshedcrispfreshprofiledescriptionutterlycompletelyhollowemptyran intohitpeeplookasy
7、lumprotectionwearytireddiscriminatedistinguishlayoutarrangement三、概括大意与完成句子Learn about Noble Gases(惰性气体)1 Have you ever ridden on a balloon? Many tourist spots offer balloon rides in order for people to see the beauty of a place from above. A balloon contains a noble gas called helium(氦). Formerly, b
8、alloons contained hydrogen but hydrogen is very flammable and dangerous when uncontrolled. Therefore, people shifted to helium, which is safer. Helium is safe because it has the properties of the noble gases.2 People once believed that noble gases couldnt chemically react at all. For this reason, th
9、ey were called inert gases(惰性气体). They were also listed under Group 0 in the old 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 some noble gas compounds were discovered.3 The gases are elements, w
10、hich share similar properties. These properties include being monoatomic, colorless, odorless, being able to conduct electricity, and having low chemical reactivity. Noble gases include Helium, Neon, Argon, Krypton, Xenon and Radon. These are all found in Group 18, in the rightmost column of the per
11、iodic table. If you look at the periodic table, you will notice that these elements are the only ones, which do not have a charge. Helium has the lowest molecular(分子的) weight while Radon is the heaviest.4 Remember that chemical reactions occur because atoms have valence electrons, which are electron
12、s in their outer shell. When the outer shell is “unfilled” or the required number of electrons is not yet complete, the atom is more reactive. Noble gases have a full outer shell, meaning that they have complete electrons in their outer shell. This complete number varies. For instance, the outer she
13、ll of Helium has 2 valence electrons while the outer shell of Xenon has 8 electrons. Nowadays, there remains to be a few noble gases because of the low chemical reactivity of these said gases.A. what is the periodic table?B. What are noble gases?C. What causes the low chemical reactivity of noble ga
14、ses? D. How were noble gases discovered?E. How were noble gases understood in the past?F. what are the applications of noble gases?5 because of their properties, noble gases have many important applications. They are widely used in medicine and industries. For instance, liquid Helium is used for sup
15、erconducting magnets(磁体). These magnets are very important in physics and medicine. When a doctor suspects that a persons brain has been damaged, he might request for Magnetic Resonance Imaging(MRI). MRI allows the doctor to “see” the brain, without operating on the patient.23. paragraph 2_ E _24. p
16、aragraph 3_ B_25. paragraph 4_C_26. paragraph 5_F_27. Noble gases are not very chemically A28. Among the elements of noble gases Helium is the B29. The required number of electrons in noble gases outer shell is D30. MRI may make operating on the patient FA. reactive B. lightestC. important D. complete E. flammableF. unnecessary参考答案：23、E 24、B 25、C 26、F 27、A 28、B 29、D 30、F第三篇Gross
