中央民族大学考博英语模拟试题及其解析1.The machine needs a complete____since it has been in use for over ten years.(A)amending(B)fitting(C)mending(D)renovating2.There were many people present and he appeared only for a few seconds,so I only caught a____of him.(A)glance(B)glimpse(C)look(D)sight3.I don't think it's wise of you to_____your greater knowledge in front of the director,for it may offend him.(A)show up(B)show out(C)show in(D)show off4.The returns in the short______may be small,but over a number of years the investment will be well repaid.Geng duo yuan xiao wan zheng kao bo ying yu zhen ti ji qi jie xi qing lian xi quan guo mian fei zi xun dian hua:si ling ling liu liu ba liu jiu qi ba,huo jia zi xun qq:qi qi er liu qi ba wu san qi.(A)interval(B)range(C)span(D)term5.A thorough study of biology requires_____with the properties of trees and plants,and the habit of birds and beasts.(A)acquisition(B)discrimination(C)curiosity(D) familiarity6.She worked hard at her task before she felt sure that the results would____her long effort.(A)justify(B)testify(C)rectify(D)verify7.I'm very glad to know that my boss has generously agreed to _____my debt in return for certain services.(A)take away(B)cut out(C)write off(D)clear up8.Some journalists often overstate the situation so that their news may create a great____.(A)explosion(B)sensation(C)exaggeration(D) stimulation9.According to what you have just said,am I to understand that his new post____no responsibility with it at all?(A)shoulders(B)possesses(C)carries(D)shares10.Sometimes the student may be asked to write about his____toa certain book or article that has some bearing on the subject being studied.(A)comment(B)reaction(C)impression(D)comprehension11.Please____yourself from smoking and spitting in public places,since the law forbids them.(A)restrain(B)hinder(C)restrict(D)prohibit12.Without telephone it would be impossible to carry on the functions of______every business operation in the whole country.(A)practically(B)preferably(C)precisely(D) presumably13.Preliminary estimation puts the figure at around billion, ____the billion the President is struggling to get through the Congress.(A)in proportion to(B)in reply to(C)in relation to(D) in contrast to14.He is planning another tour abroad,yet his passport will ______at the end of this month.(A)expire(B)exceed(C)terminate(D)cease15.All the off-shore oil explorers were in high spirits as they read________letters from their families.(A)sentimental(B)affectionate(C)intimate(D) sensitive16.several international events in the early1990s seem likely to______,or at least weaken,the trends that emerged in the1980s.(A)revolt(B)revolve(C)reverse(D)revive17.I was unaware of the critical points involved,so my choice was quite______.(A)arbitrary(B)rational(C)mechanical(D) unpredictable18.The local people were joyfully surprised to find the price of vegetables no longer______according to the weather.(A)altered(B)converted(C)fluctuated(D)modified19.The pursuit of leisure on the part of the employees will certainly not_____their prospect of promotion.(A)spur(B)further(C)induce(D)reinforce20.In what_______to a last minute stay of execution,a council announced that emergency funding would keep alive two aging satellites.(A)applies(B)accounts(C)attaches(D)amount1.本题的答案是(C)(A)amending："修改，修正"，通常指对法律条文、国际条约、合同等进行适当的修改。
如：The Congress is amending the law.(国会正在修改法律)。
(B)fitting："安装，装置"，含义较广，主要指使某种东西的质量或规格适合某种条件、情况、目的或要求；或者新安装某种零件使之适合某种质量或规格的要求。
(A)、(B)均与题意有一定差距，故均应排除。
(C)mending："修理"，主要指修理已损坏、破损的机器或用具使其完全恢复整体结构，继续可以使用。
(C)与题意完全吻合，故应选(C)。
(D)renovating："革新，更新，修复"，通常用于对老建筑物进行修复，使之现代化。
这与句意不符，故(D)应排除。
2.本题的答案是(B)(A)glance："匆匆看，扫视"，指突然、迅速、短暂地看某人或某物。
如：She took aglance at the report(她看了一眼那份报告)。
glance作名词时通常后接at。
此处与句意略有出入，故(A)应排除。
(B)glimpse："一瞥，瞥见"，也指短暂、突然地看，作名词时后接"of"，而且在前可加不定冠词"a"，这与题意完全吻合，故应选(B)。
(C)look："看"，这是四个备选答案中最常见的词，后接at，故(C)应排除。
(D)sight："视力；望见"，通常指看见某人或某物，"catch sight of"是固定搭配，意为"看清某人或某物"，但在sight前面没有不定冠词"a"，故(D)应排除。
3.本题的答案是(D)(A)show up："使露出；使呈现；使醒目"。
(B)show out："送出"，主要指给客人引路送出门。
(C)show in："领入"，主要指领客人进入家门或房间。
(D)show off："炫耀，卖弄"，主要指炫耀自己的知识或成就，这与本题意思想吻合，故(D)为正确答案。
全句的意思是：我不认为在主任面前炫耀你自己比人懂得多是明智之举，因为这可能冒犯他。
4.本题的答案是(D)(A)interval："间隔、间歇；工间休息"，主要指两个特定时间之间的，尤指短暂的时间空间。
(B)range："范围，区域"，主要指武器射程范围，飞机续航区域或最大航程等。