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1、2022年考博英语-吉林大学考前模拟强化练习题（附答案详解）1. 单选题（ ） her interest in children, teaching should be the right career for her.问题1选项A.GivingB.GiveC.GivenD.To give【答案】C【解析】考查given的特殊语法。given 充当介词，意思是“考虑到”。句意：考虑到她对孩子的兴趣，教学工作应该是她正确的职业。选项C符合题意。2. 单选题They（ ） his claim of innocence with eye-witness testimony问题1选项A.objecte
2、dB.opposedC.contradictedD.refuted【答案】D【解析】考查动词词义辨析。object “反对（一般与介词to搭配使用）”；oppose “反对；对抗，抗争”；contradict “反驳；否定；与 矛盾”；refute “驳斥”。句意：他们用目击者的证词来驳斥他声称自己无辜。选项D符合题意。3. 单选题For years, doctors advised their patients that the only thing taking multivitamins does is give them extensive urine (尿).After all, t
3、rue vitamin deficiencies are practically unheard of in industrialized countries. Now it seems that those doctors may have been wrong. The results of a growing number of studies suggest that even a modest vitamin shortfall can be harmful to your health. Although proof of the benefits of multivitamins
4、 is still far from certain, the few dollars you spend on them is probably a good investment.Or at least thats the argument put forward in the New England Journal of Medicine. Ideally, said Dr. Walter Willett and Dr. Meir Stampfer of Harvard, all vitamin supplements would be evaluated in scientifical
5、ly rigorous clinical trials. But those studies can take a long time and often raise more questions than they answer. At some point, while researchers work on figuring out where the truth lies, it just makes sense to say the potential benefit outweighs the cost.The best evidence to date concerns fola
6、te （叶酸）,one of the B vitamins. Its been proved to limit the number of defects in embryos （胚胎）,and a recent trial found that folate in combination with vitamin B12 and a form of B6 also decreases the re-blockage of arteries after surgical repair.The news on vitamin E has been more mixed. Healthy folk
7、s who take 400 international units daily for at least two years appear somewhat less likely to develop heart disease. But when doctors give vitamin E to patients who already have heart disease, the vitamin doesnt seem to help. It may turn out that vitamin E plays a role in prevention but cannot undo
8、 serious damage.Despite vitamin Cs great popularity, consuming large amounts of it still has not been positively linked to any great benefit. The body quickly becomes saturated with C and simply excretes （排泄）any excess.The multivitamins question boils down to this： Do you need to wait until all the
9、evidence is in before you take them, or are you willing to accept that theres enough evidence that they dont hurt and could help?If the latter, theres no need to go to extremes and buy the biggest horse pills or the most expensive bottles. Large doses can cause trouble, including excessive bleeding
10、and nervous system problems.Multivitamins are no substitute for exercise and a balanced diet, of course. As long as you understand that any potential benefit is modest and subject to further refinement, taking a daily multivitamin makes a lot of sense.1.At one time doctors discouraged taking multivi
11、tamins because they believed that multivitamins2.According to the author, clinical trials of vitamin supplements （ ）3.It has been found that vitamin E（ ） .4.It can be seen that large doses of multivitamins （ ）.5.The author concludes the passage with the advice that（ ） .问题1选项A.could not easily be abs
12、orbed by the human bodyB.were potentially harmful to peoples healthC.were too expensive for daily consumptionD.could not provide any cure for vitamin deficiencies问题2选项A.often result in misleading conclusionsB.take time and will not produce conclusive resultsC.should be conducted by scientists on a l
13、arger scaleD.appear to be a sheer waste of time and resources问题3选项A.should be taken by patients regularly and persistentlyB.can effectively reduce the recurrence of heart diseaseC.has a preventive but not curative effect on heart diseaseD.should be given to patients with heart disease as early as po
14、ssible问题4选项A.may bring about serious side effectsB.may help prevent excessive bleedingC.are likely to induce the blockage of arteriesD.are advisable for those with vitamin deficiencies问题5选项A.the benefit of daily multivitamin intake outweighs that of exercise and a balanced dietB.its risky to take mu
15、ltivitamins without knowing their specific functionC.the potential benefit of multivitamins can never be overestimatedD.its reasonable to take a rational dose of multivitamins daily【答案】第1题:A第2题:B第3题:C第4题:A第5题:D【解析】1.文章开篇第一句话For years, doctors advised their patients that the only thing taking multivitamins does is give them extensive urine. 很多年来，医生告诫他们的病人服用复合维生素只会导致他们多尿。由此可知，对于医生来说，维生素很难被吸收，都会通过尿液排出。选项A符合题意。2.文章第二段第二句话提到所有的维他命供应都会在实验的基础上进行科学的评估。接下来第三句话“但是这些研究需要花费大量时间，并且会提出更多的问题”。选项B符合题意。3.文章第四段“It may turn out that vitamin
