紧急请教狒狒宝典上的几道题

21. Historian: We can learn about the medical history of individuals through chemical analysis of their hair. It is likely, for example, that Isaac Newton’s psychological problems were due to mercury poisoning; traces of mercury were found in his hair. Analysis is now being done on a lock of Beethoven’s hair. Although no convincing argument has shown that Beethoven ever had a venereal disease, some people hypothesize that venereal disease caused his deafness. Since mercury was commonly ingested in Beethoven’s time to treat venereal disease, if researchers find a trace of mercury in his hair, we can conclude that this hypothesis is correct.

Which one of the following is an assumption on which the historian’s argument depends?

(A) None of the mercury introduced into the body can be eliminated.

(B) Some people in Beethoven’s time did not ingest mercury.

(C) Mercury is an effective treatment for venereal disease.

(D) Mercury poisoning can cause deafness in people with venereal disease.

(E) Beethoven suffered from psychological problems of the same severity as Newton’s

答案选B，我怎么也不明白到底是为什么？也不知道到底是怎么推出来的？

commonly ingested和no convincing argument，所以认为有一些人没有感染。

28. Ordinary mountain sickness, a common condition among mountain climbers, and one from which most people can recover, is caused by the characteristic shortage of oxygen in the atmosphere at high altitudes. Cerebral edema, a rarer disruption of blood circulation in the brain that quickly becomes life-threatening if not correctly treated from its onset, can also be caused by a shortage of oxygen. Since the symptoms of cerebral edema resemble those of ordinary mountain sickness, cerebral edema is especially dangerous at high altitudes.

Which one of the following is an assumption on which the argument depends?

(A) The treatment for ordinary mountain sickness differs from the treatment for cerebral edema.

(B) Cerebral edema can cause those who suffer from it to slip into a coma within a few hours.

(C) Unlike cerebral edema, ordinary mountain sickness involves no disruption of blood circulation in the brain.

(D) Shortage of oxygen at extremely high altitude is likely to affect thinking processes and cause errors of judgment.

(E) Most people who suffer from ordinary mountain sickness recover without any special treatment.

convicted of a serious driving-relative offense should either be sentenced to jail or be forced to receive driver reeducation, since to do otherwise would be to allow a crime to go unpunished. Only if such drivers are likely to be made more responsible drivers should driver re-education be recommended for them. Unfortunately, it is always almost impossible to make drivers with a large number of demerit points more responsible drivers.

If the editorialist’s statements are true, they provide the most support for which one of the following?

(A) Drivers with a large number of demerit points who have been convicted of a serious driving-related offense should be sent to jail.

(B) Driver re-education offers the best chance of making drivers with a large number of demerit points responsible drivers.

(C) Driver re-education is not a harsh enough punishment for anyone convicted of a serious driving-related offense who has also

(D) Driver re-education should not be recommended for those who have committed no serious

(E) Drivers with a larger number of demerit points but no conviction for a serious driving-related offense should receive driver re-education rather than jail

38. Amphibian populations are declining in numbers worldwide. Not coincidentally, the earth’s ozone layer has been continuously depleted throughout the last 50 years. Atmospheric ozone blocks UV-B, a type of ultraviolet radiation that is continuously produced by the sun, and which can damage genes. Because amphibians lack hair, hide, or feathers to shield them, they are particularly vulnerable to UV-B radiation. In addition, their gelatinous eggs lack the protection of leathery or hard shells. Thus, the primary cause of the declining amphibian population is the depletion of the ozone layer.

Each of the following, if true, would strengthen the argument EXCEPT:

(A) Of the various types of radiation blocked by atmospheric ozone, UV-B is the only type that can damage genes.

(B) Amphibian populations are declining far more rapidly than are the populations of nonamphibian species whose tissues and eggs have more natural protection from UV-B.

(C) Atmospheric ozone has been significantly depleted above all the areas of the world in which amphibian populations are declining.

(D) The natural habitat of amphibians has not become smaller over the past century.

(E) Amphibian populations have declined continuously for the last 50 years.

21题对b取非就是所有人都ingest m，如果所有人体内都有m那么从B身上检测到m就不能说明他感染了v病，削弱了原文结论，所以选B

28题a common condition among mountain climbers, and one from which most people can recover说明O m这种病很好治，如果ｃｅ这个病也和ｏｍ一样好治，那么它就不危险了，也是取非削弱结论，所以选Ａ

第三题我觉得是这样的，典型错误是题目说Ａ不好，答案给个Ａ需要改善，我觉得这个题有点那个意思，题设说Unfortunately, it is always almost impossible to make drivers with a large number of demerit points more responsible drivers. 选项说not a harsh enough punishment ，两者没有必然联系而且原文说的是drivers with a large number of demerit points ，而ｃ中却说是anyone convicted of a serious driving-related offense，不一样的。

３８题我觉得那个ＵＶ－Ｂ是否唯一好像不能支持原文吧，这题我也迷糊，有人说选Ｄ的，我也在发贴问牛人。

以上是我的理解，希望能对你有所帮助

最后一道排除法做是选D，其他都是增强

第一道为什么不选D呢？我觉得题目里既然说“Although no convincing argument has shown that Beethoven ever had a venereal disease, some people hypothesize that venereal disease caused his deafness.”那假设应该是v病会导致失聪啊

（话说ETS真能出题啊，连贝多芬是不是得过花柳病都能往上出）