专业八级-712及答案解析.doc
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1、专业八级-712 及答案解析(总分:100.00,做题时间:90 分钟)一、PART LISTENING COM(总题数:0,分数:0.00)二、SECTION A(总题数:1,分数:10.00)填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_三、SECTION B(总题数:1,分数:5.00)Questions 1 to 5 are based on an interview. At the end of the interview you will be given 10 seconds to an
2、swer each of the following five questions.Now listen to the interview.(分数:5.00)(1).The average life expectancy of ancient Egyptians is about _.(分数:1.00)A.32B.37C.50D.60(2).Which of the following is NOT a medical problem ancient Egyptians used to have?(分数:1.00)A.Dental decay.B.Tooth erosion.C.Maligna
3、nt tumors.D.Insomni(3).The following are very common among ancient Egyptians EXCEPT _.(分数:1.00)A.abscessB.intestinal parasitesC.anaemiaD.drug addiction(4).The mummy Rameses is different from other Egyptian mummies in that _.(分数:1.00)A.it cannot be destroyedB.its heart was not removedC.most internal
4、organs were removedD.it was made with a different technique(5).Which of the following is NOT TRUE of Rameses?(分数:1.00)A.It was on display in Cairo in 1871.B.It was taken to Paris for research.C.It was seriously damaged in an upheaval.D.It was covered in new bandages.四、SECTION C(总题数:2,分数:5.00)Questio
5、ns 6 to 8 are based on the following news. At the end of the news item, you will be given 10 seconds to answer each question.Now listen to the news.(分数:3.00)(1).The Bush and Kerry campaigns exchanged attacks regarding _.(分数:1.00)A.inflationB.budget deficitC.national securityD.unemployment rate(2)._
6、participated in the debate between the Bush and Kerry campaigns.(分数:1.00)A.Cheney and KerryB.Bush and KerryC.Cheney and the head of Democratic PartyD.The heads of Democratic and Republic parties(3).According to Cheney, Kerry is in favor of _.(分数:1.00)A.cutting down on expenditure on defense and inte
7、lligenceB.increasing expenditure on national defenseC.allocating more fund on environmental pollutionD.levying more tax on large businessesQuestions 9 to 10 are based on the following news. At the end of the news item, you will be given 10 seconds to answer each question.Now listen to the news.(分数:2
8、.00)(1).The Food and Agriculture Organization predicts that which of the following is likely to decrease?(分数:1.00)A.World grain supplies.B.World grain production.C.World grain consumption.D.World grain trad(2).Wheat supplies have decreased in recent years because _.(分数:1.00)A.wheat prices are very l
9、ow in the worldB.the demand for wheat is decreasingC.many regions are affected by droughtD.the wheat consumption is becoming less五、PART READING COMPR(总题数:0,分数:0.00)六、TEXT A(总题数:1,分数:4.00)Although it is now possible to bring most high blood pressure under control, the causes of essential hypertension
10、 remain elusive. Understanding how hypertension begins is at least partly a problem of understanding when in life it begins, and this may be very early-perhaps within the first few months of life. Since the beginning of the century, physicians have been aware that hypertension may run in families, b
11、ut before the 1970s, studies of the familial aggregation of blood pressure treated only populations 15 years of age or older. Few studies were attempted in younger persons because of a prevailing notion that blood pressures in this age group were difficult to measure and unreliable and because essen
12、tial hypertension was widely regarded as a disease of adults.In 1971, a study of 700 children, ages 2 to 14, used a special blood pressure recorder which minimizes observer error and allows for standardization of blood pressure readings. Before then, it had been well established that the blood press
13、ure of adults aggregates familially, that is, the similarities between the blood pressure of an individual and his siblings are generally too great to be explained by chance. The 1971 study showed that familial clustering was measurable in children as well, suggesting that factors responsible for es
14、sential hypertension are acquired in childhood. Additional epidemiological studies demonstrated a clear tendency for the children to retain the same blood pressure patterns, relative to their peers, four years later. Thus, a child with blood pressure higher or lower than the norm would tend to remai
15、n higher or lower with increasing age.Meanwhile, other investigators uncovered a complex of physiologic roles-including blood pressure-for a vasoactive (作用于血管的) system called the kallikrein-kinin (血管舒缓酶-激酞原 ) system. Kallikreins are enzymes in the kidney and blood plasma which act on precursors (先兆)
16、 called kininogens to produce vasoactive peptides(酞)called kinins. Several different kinins are produced, at least three of which are powerful blood vessel dilators. Apparently, the kallikrein-kinin system normally tends to offset the elevations in arterial pressure that result from the secretion of
17、 salt-conserving hormones such as aldosterone(醛固酮) on the one hand and from activation of the sympathetic nervous system (which tends to constrict blood vessels) on the other hand.It is also known that urinary kallikrein excretion is abnormally low in subjects with essential hypertension. Levels of
18、urinary kallikrein in children are inversely related to the diastolic blood pressures of both children and their mothers. Children with the lowest kallikrein levels are found in the families with the highest blood pressure. In addition, black children tend to show somewhat lower urinary kallikrein l
19、evels than white children, and blacks are more likely to have high blood pressure. There is a great deal to be learned about the biochemistry and physiologic roles of the kallikrein-kinin system. But there is the possibility that essential hypertension will prove to have biochemical precursors.(分数:4
20、.00)(1).The author is primarily concerned with _.(分数:1.00)A.questioning the assumption behind certain experiments involving children under the age of 15B.describing the new scientific findings about high blood pressure and suggesting some implicationsC.describing two different methods for studying t
21、he causes of high blood pressureD.revealing a discrepancy between the findings of epidemiological studies and laboratory studies on essential hypertension(2).The argument in the passage leads most naturally to which of the following conclusions?(分数:1.00)A.A low output of urinary kallikrein is a like
22、ly cause of high blood pressure in children.B.The kallikrein-kinin system plays an important role in the regulation of blood pressure.C.Essential hypertension may have biochemical precursors which may be useful predictors in children.D.The failure of the body to produce sufficient amounts of kinins
23、is the cause of essential hypertension.(3).The author refers to the somewhat lower urinary kallikrein levels in black children in order to _.(分数:1.00)A.support the thesis that kallikrein levels are inversely related to blood pressureB.highlight the special health problems involved in treating popula
24、tions with high concentrations of black childrenC.offer a causal explanation for the difference in urinary kallikrein levels between black and white childrenD.suggest that further study needs to be done on the problem of high blood pressure among black adults(4).The evidence that a child with blood
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- 专业 712 答案 解析 DOC
