1、专业四级-791及答案解析 (总分：130.00，做题时间：90分钟)一、PART DICTATION(总题数：1，分数：1.00)1.Listen to the following passage. Altogether the passage will be rend to you four times. During the first reading, which will be rend at normal speed, listen and try to understand the meaning. For the second and third readings, the p
2、assage will be rend sentence by sentence, or phrase by phrase, with intervals of 15 seconds. The last rending will be rend at normal speed again and during this time you should check your work. You will then be given 2 minutes to check through your work once more.Please write the whole passage on AN
3、SWER SHEET ONE.（分数：1.00）_二、PART LISTENING COM(总题数：0，分数：0.00)三、SECTION A CONVERSATI(总题数：3，分数：10.00)（分数：4.00）A.B.C.D.A.B.C.D.A.B.C.D.A.B.C.D.（分数：3.00）A.B.C.D.A.B.C.D.A.B.C.D.（分数：3.00）A.B.C.D.A.B.C.D.A.B.C.D.四、SECTION B PASSAGES(总题数：3，分数：11.00)（分数：4.00）A.B.C.D.A.B.C.D.A.B.C.D.A.B.C.D.（分数：4.00）A.B.C.D.A
4、.B.C.D.A.B.C.D.A.B.C.D.（分数：3.00）A.B.C.D.A.B.C.D.A.B.C.D.五、SECTION C NEWS BROAD(总题数：5，分数：11.00)（分数：2.00）A.B.C.D.A.B.C.D.（分数：2.00）A.B.C.D.A.B.C.D.（分数：2.00）A.B.C.D.A.B.C.D.2.（分数：1.00）A.B.C.D.In this section, you will hear several news items. Listen to them carefully and then answer the questions that f
5、ollow.（分数：4.00）(1).What does Feltman mean when he says this: There is a new determination that the government has put toward al-Qaida. ?A. Yemen is determined to fight against al-Qaida.B. Yemen made new determinations about its strategies toward al-Qaida.C. Yemen has different opinions about fightin
6、g al-Qaida.D. Yemen is a focus of al-Qaida.（分数：1.00）A.B.C.D.(2).According to the news item, which of the following is true?A. Fighting al-Qaida is Yemens top priority.B. Al-Qaida regrouped in Yemen because it has received help from the insurgents.C. Fighting the Houthi insurgency is perhaps more imp
7、ortant for the Yemen government.D. Al-Qaida in Yemen is the strongest than anywhere else.（分数：1.00）A.B.C.D.(3).According to Benjamin, the option that the U.S. should take is to _.A. build more military facilities in YemenB. win a propaganda war on the Arabian PeninsulaC. deliver basics services to Ye
8、men peopleD. help Yemen develop its economy（分数：1.00）A.B.C.D.(4).The aid that Yemen government has received is _.A. 63 million dollarsB. 5.2 billion dollarsC. the sum of A and BD. unclear（分数：1.00）A.B.C.D.六、PART CLOZE(总题数：1，分数：20.00)We live in a materialist society. We are trained from our earliest ye
9、ars to be (31) . Our possessions, mine and yours , are clearly (32) from early childhood. When we grow older enough to earn a living, it does not surprise us to discover that success is measured (33) the money we earn. We spend the whole of our lives keeping up with our neighbors, the Joneses. If we
10、 buy a new television set, Jones is (34) to buy a bigger and better one.It is not only in affluent society that people are (35) with the idea of making more money. Consumer goods are (36) everywhere and modern industry deliberately (37) create new markets. Gone (38) the days when industrial goods ar
11、e made to (39) forever. The wheels of industry must be kept turning. Unfashionable goods are made to be (40) . Cars get tinnier and tinnier. You no sooner acquire this years model (41) you are thinking hard about its (42) .This materialistic outlook has seriously influenced education. Fewer and fewe
12、r young people these days acquire (43) only for its own sake. Every course of studies (44) lead somewhere : i.e. to a bigger wage (45) The demand for skilled personnel far exceeds the supply and big companies compete with each other to (46) students before they have completed their studies. Tempting
13、 salaries and fringe benefits are offered to them. Recruiting (47) of this kind have lead to the brain drain, the process (48) which highly skilled people offer their services to the highest bidder. The wealthier nations (49) their poorer neighbors of their most able citizens. (50) wealth is worship
14、ped as never before, the rich get richer and the poor, poorer.（分数：20.00）(1).A. greedy B. aggressiveC. arrogant D. curious（分数：1.00）A.B.C.D.(2).A. marked B. tidedC. signed D. labeled（分数：1.00）A.B.C.D.(3).A. in regard to B. in terms ofC. in respect of D. in response to（分数：1.00）A.B.C.D.(4).A. bound B. de
15、terminedC. inclined D. destined（分数：1.00）A.B.C.D.(5).A. interested B. absorbedC. haunted D. indulged（分数：1.00）A.B.C.D.(6).A. desirable B. resistibleC. respectable D. agreeable（分数：1.00）A.B.C.D.(7).A. set on B. set upC. set out to D. set forth（分数：1.00）A.B.C.D.(8).A. will be B. didC. be D. are（分数：1.00）A.
16、B.C.D.(9).A. last B. persistC. continue D. remain（分数：1.00）A.B.C.D.(10).A. disposed B. discardedC. destroyed D. damaged（分数：1.00）A.B.C.D.(11).A. before B. thenC. when D. than（分数：1.00）A.B.C.D.(12).A. replacement B. supplementC. requirement D. substance（分数：1.00）A.B.C.D.(13).A. competence B. accuracyC. k
17、nowledge D. recognition（分数：1.00）A.B.C.D.(14).A. must B. willC. should D. can（分数：1.00）A.B.C.D.(15).A. package B. packetC. baggage D. socket（分数：1.00）A.B.C.D.(16).A. register B. admitC. recruit D. install（分数：1.00）A.B.C.D.(17).A. tactics B. tricksC. tips D. methods（分数：1.00）A.B.C.D.(18).A. by B. inC. for
18、 D. with（分数：1.00）A.B.C.D.(19).A. deprive B. dischargeC. dispose D. diminish（分数：1.00）A.B.C.D.(20).A. Though B. ButC. While D. If（分数：1.00）A.B.C.D.七、PART GRAMMAR AND V(总题数：30，分数：30.00)3.I couldnt sleep last night because the tap in the bathroom was _.A. drainingB. droppingC. spillingD. dripping（分数：1.00
19、）A.B.C.D.4.Many automobile accidents were _ careless driving.A. attributed to B. resulted in C. contributed to D. raised from（分数：1.00）A.B.C.D.5.The treasury issued an order stating that _ land purchased from the government had to be paid for in gold and silver.A. henceforth B. moreover C. whereby D.
20、 however（分数：1.00）A.B.C.D.6.You must be very careful. The work _ precision.A. retails B. repels C. retains D. entails（分数：1.00）A.B.C.D.7.We all enjoy our freedom of choice and do not like to see it_when it is within the legal and moral boundaries of society.A. compacted B. dispersed C. delayed D. rest
21、ricted（分数：1.00）A.B.C.D.8.At that time, neither Britain nor France was _ in readiness for the Second World War.A. prepared B. devoted C. armed D. provided（分数：1.00）A.B.C.D.9.The new evidence threw some light _ the case.A. in B. to C. at D. on（分数：1.00）A.B.C.D.10.She took an umbrella with her for fear t
22、hat _.A. it rains B. it should rain C. it rained D. it be raining（分数：1.00）A.B.C.D.11.I purposely _ from extending these observations to any length.A. abstain B. sustain C. retain D. detain（分数：1.00）A.B.C.D.12.In some eases, your instructor may tell you the topics _ or may give you a choice of top. le
23、s to write about.A. in advance B. ahead of C. above all D. right away（分数：1.00）A.B.C.D.13.The manager disapproved of the plan that Sam had _ over night.A. drawn up B. drawn off C. drawn back D. drawn on（分数：1.00）A.B.C.D.14.- Whats the matter with that picture on the wall? - It needs _. A. straightenin
24、g B. to be straightening C. straightened D. straighten（分数：1.00）A.B.C.D.15.It was not until midnight _ the snowcapped peak.A. did they sight B. that they did not sightC. that they sighted D. did they not sight（分数：1.00）A.B.C.D.16.Hes _ enough to stand all the hardships.A. tough B. roughC. crude D. hoa
25、rse（分数：1.00）A.B.C.D.17.The scenery of the Way-lee-way had charmed the travelers with its mingled _ and grandeur and filled them with admiration and astonishment.A. amenity B. equipment C. convenience D. appliance（分数：1.00）A.B.C.D.18.Unless _ by credit card, please pay in cash.A. pay B. is paid C. pay
26、ing D. paid（分数：1.00）A.B.C.D.19.They stood still on the top of a mound, gazing out over the endless_of the grassland.A. space B. expanse C. stretch D. land（分数：1.00）A.B.C.D.20.Mike looks so sleepy in the class; he _ up last night.A. must stay B. should have stayedC. must have stayed D. is sure to stay
27、（分数：1.00）A.B.C.D.21.He kept his head at that critical moment; otherwise the accident _.A. would happen B. happenedC. would have been happened D. would have happened（分数：1.00）A.B.C.D.22.She didnt _ even though she was shrewd enough to know who was responsible.A. condense B. commit C. condemn D. contri
28、ve（分数：1.00）A.B.C.D.23.When Ken studied at Stanford University, he lived _ the University.A. out of B. apart fromC. distant from D. a long way from（分数：1.00）A.B.C.D.24.The computer can be programmed to _ a whole variety of tasks.A. assignB. tackleC. realizeD. solve（分数：1.00）A.B.C.D.25.In this remote ar
29、ea _ with a limited number of sheep and cattle.A. can only a small farm be found B. a small farm can only be foundC. only could be a small farm found D. could only be found a small farm（分数：1.00）A.B.C.D.26.Delaying the problem too long wont help _ it.A. solving B. solve C. to solve D. solves（分数：1.00）
30、A.B.C.D.27.As he grew older, all memory of his childhood began to _ from his mind.A. faint B. retreat C. derive D. fade（分数：1.00）A.B.C.D.28.Ive already told you that Im going to buy it, _.A. no matter how it costs B. however does it costs muchC. how much does it cost D. however much it costs（分数：1.00）
31、A.B.C.D.29.The vision of that big black car hitting the sidewalk a few feet from us will never be_from my memory.A. ejected B. escaped C. erased D. omitted（分数：1.00）A.B.C.D.30.They work long hours but do not earn enough to ensure a(n) _ living for themselves and their families.A. reticent B. decent C
32、. innocent D. descent（分数：1.00）A.B.C.D.31.All the flights _because of the extremely heavy rain, we had to postpone our schedule.A. were canceled B. had been canceledC. having canceled D. having been canceled（分数：1.00）A.B.C.D.32._ one has a child will one realize how great ones parents are.A. Until B.
33、Not until C. It is not until D. Until not（分数：1.00）A.B.C.D.八、PART READING COMPR(总题数：0，分数：0.00)九、TEXT A(总题数：1，分数：5.00)Mind Your Calories or Your Waistline?Cutting back the calories may do more than whittle your waistline; it could protect your brain from the effects of aging. A new study suggests that
34、 calorie restriction can help slow the normal process of cell death that happens with age.Researchers say the body naturally goes through a process known as apoptosis, or cell death, to destroy old cells so new ones can be made, and many factors can alter this process. Age-related diseases, such as
35、Alzheimers and Parkinsons, cause a higher-than-normal loss of cells in the brain, which can lead to loss of function.Previous studies have suggested that calorie restriction can boost life span and mental capacity. That prompted researchers to look at whether cutting calories might also play a role
36、in protecting aging brain cells. They compared levels of proteins indicating brain cell death in two groups of rats. One group was given unrestricted access to food and water throughout their lives. The other was given 40% fewer calories (but still adequate nourishment) than the unrestricted group.T
37、hey found that the levels of these proteins increased with normal aging in the rats fed unrestricted diets. The rats given a restricted diet did not have an increase in the levels of these proteins.Another protein thought to protect from cell death dropped by 60% in the well-fed rats, but it actuall
38、y increased over time in the calorie-restricted rats.Finally, DNA fragmentation, a third indicator of cell death, more than doubled in the unrestricted rats with age, but this increase was 36% less in the calorie-restricted rats.Although the results are promising, researchers say more study is neede
39、d to completely understand the processes that lead to cell death and the role nutrition plays in that process.Meanwhile, they say, their study provides yet another reason to watch what you eat. Were not going to do it right away to improve our memories; were going to do it probably in general for th
40、e first reasons, which would be to prevent cardiovascular disease and cancer, says Christian Leeuwenburgh at the University of Florida.（分数：5.00）(1).The main purpose of these researchers is _ A. to help to destroy old cells and boost new onesB. to alter the natural process known as apoptosisC. to fin
41、d out ways to protect aging brain cellsD. to compare different levels of proteins（分数：1.00）A.B.C.D.(2).The rats fed unrestricted diets do NOT _ A. have one preventing-aging protein increased B. have their cell death increased or doubledC. have their DNA fragmentation doubled D. have the levels of pro
42、teins increased（分数：1.00）A.B.C.D.(3).The result of the researches so far may help, as asserted by one of the researchers, _ A. to prevent cardiovascular disease and cancerB. to understand the processes that lead to cell deathC. to improve our memoriesD. to do what we think is right（分数：1.00）A.B.C.D.(4
43、).Which of the following statements is true, according to the passage?A. Scientists make no progress in the researches. B. Researchers have made a great breakthrough.C. More researches are to be made in the field. D. The more proteins the less calories the better.（分数：1.00）A.B.C.D.(5).What kind of benefits has been or will be brought to us as a result of the researches?A. Calorie restriction. B. Apoptosis.C. Cardiovascular disease. D. Cancer prevention.（分数：1.00）A.B.C.D.十、TEXT B(总题数：1，分数：4.00)
