正确答案: D

scholars can meet each other more easily

题目：According to the passage, the recent growth in air travel has meant that__________

解析：【解析】事实细节题，第三段最后一句说“…the aeroplane，making contact between scholars even in most distant places immediately feasible…”，与选项D意思一致，文中还提到“providing for the very rapid transmission of knowledge”，但A、B、C项均不符合。

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学习资料的答案和解析：

[单选题]quantity

回答下面的题目：Traffic in Uur CitiesTile volume of traffic in many cities in the world today continuesto expand．This causes many problems，including serious air pollution，lengthydelays，and the greater risk__________ (51)accidents．Clearly，something must be done，but it is often difficult to persuade people to__________ (52)theirhabits and leave their cars at home．One possible__________ (53)is to make it more expensive for peopleto use their cars by__________ (54)charges for parking and__________ (55)tougherfines for anyone who__________ (56)the law．In addition，drivers could be required to pay for using particular routes atdifferent times of the day．This system，__________ (57)as“road pricin9”，is alreadybeing introduced in a__________ (58)of cities，using aspecial electronic card__________ (59)to the windscreen of the car．Another way of__________ (60)with the problem is to provide cheapparking on the__________ (61)of the city，and strictly control the number ofvehicles allowed into the centre．Drivers and their passengersthen use a special bus__________ (62)for the final stage of their journey,Ofcourse．the most important__________ (63)is to providegood public transport．However，toget people to__________ (64)the comfort of their cars，publictransport must be felt to be reliable，convenient andcomfortable，with fares__________ (65)at an acceptablelevel．

解析：根据句意，“道路收费”系统已经被引入一些城市来使用，a number of表示“一些”，符合句意，为正确答案。A项a quantity of表示“大量”，可修饰可数和不可数名词，但侧重大批量计算，含精确测量的意味；B项；total of表示“总计”，a sum of表示“合计，总数”，均不符合句意，故选D。

[单选题]第58题应选：

回答下面的题目:Exercise Being Good or BadCan exercise be a bad thing? Sudden death during or soon after strenuous exertion on the squash court or on the army training grounds, is not unheard of. 51 trained marathon runners are not immune to fatal heart attacks. But no one knows just 52 common these sudden deaths linked to exercise are. The registration andinvestigation of such 53 is very patchy; only a national survey could determine the true 54 of sudden deaths in sports. But the climate of medical opinion is shifting in 55 of exercise, for the person recovering from a heart attack as 56 as the average lazy individual. Training can help the victim of a heart attack bylowering the 57 of oxygen the heart needs at any given level of work 58 the patient can do more before reaching the point where chest pains indicate a heart starved of oxygen. The question is, should middle-aged people, 59 .particular, be screened for signs of heart disease before 60 vigorous exercise?Most cases of sudden death in sport are caused by lethal arrhythmias in the beating of the heart, often in people 61 undiagnosed coronary heart disease. In North America 62 over 35 is advised to have a physical check-up and even an exercise electrocardiogram. The British, on the whole, think all this testing isunnecessary. Not many people die from exercise, 63 , and ECGs ( 心电图 ) are notoriously inaccurate. However, two medical cardiologists at the Victoria Infirmary in Glasgow, advocate screening by exercise ECG for people over 40, or younger people 64 at risk of developing coronary heart disease. Individuals showing a particular abnormality in their ECGs 65 , they say, a 10 to 20 times greater risk of subsequently developing signs of coronary heart disease, or of sudden death.第51题应选：

so

解析：【解析】句意为：__________病人能够做得更多。四个选项：however“不管怎样，无论如何”；because“因为”；but“但是”；so“因而，所以”。

[单选题]In the eighteenth century the heading of “natural philosophy” encompassed all of the sciences.

category

[单选题]Will is a document written to ensure that the wishes of the deceased are realized.

fulfilled

解析：【题 干】遗嘱是一种用来保证逝去的人的愿望得以实现的书面文件。A．实现 B．接受 C．提倡 D．接收【解 析】本题考查动词。划线单词realize的意思是“实现”，与fulfill意思相近．故本题选A。