正确答案: A

control

题目：

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学习资料的答案和解析：

[单选题]To absorb a younger work force, many companies offered retirement plans as incentives for older workers to retire and make way for the younger ones who earned lower salaries.

rewards

解析：句意为：为吸引更年轻的劳动力，很多公司为老员工退休提供退休计划作为鼓励，以便为工资较低的年轻员工让路。incentive“激励，鼓励”，四个选项：reward“奖赏”；opportunit,／“机会”；motive“动机，目的”；stimulus“刺激物”；所以A项符合题意。

[单选题]The author is most concerned with the possibility that after a few decades__________．

阅读材料，回答下面的题目。The New Technology ApplicationOn a more mundane level, third-generation mobile telephones, despite all the delays and the billions squandered on 3G licenses by telecom firms, are still expected to offer consumers high-speed, always on mobile internet access, complete with video, in the next few years.Rapidly proliferating "WiFi" networks already offer wireless access on a local basis. Tiny tracking chips called radio-frequency identification devices are being used as pet passports.Soon they will be small, powerful and cheap enough to be implanted into everything form humans to milkcartons recording and transmitting real-time medical data, or serving as a form of inventory control.Sensors of every kind, including video cameras, should also become much smaller and cheaper.Forrester Research, a technology consultancy, predicts that 14 billion such devices will be connected to the internet by 2005.How rapidly such new technology is introduced will depend on a number of factors the state of the economy, the supply of investment capital and the appetite of consumers for new products or services ! Fortunes will be made and lost many times over.But whatever happens, the power of computing and communications look set to continue to grow, and its price to fall, at a steady rate for the next few decades.That will make it possible, at least in rich countries, to record most human interactions, wherever and whenever they take place, and to store and analyze this ocean of data at low cost.For the sake of argument, this survey will assume that we are heading towards a networked society of ubiquitous, mobile Communication capable of constant monitoring.Whether this arrives in 20,30 or 40 years does not really matter.The point is that the destination seems not merely possible, but probable, so it is not toosoon to ask: What do we want this technology to do?The internet has already thrown up a host of legal and political conundrums, but, these are only a small foretaste of the dilemmas about privacy, security, intellectual property and the nature of government itself that will have to be faced over the coming decades.The debate has already begun. This survey will outline some of main issues, and speculate on the way they are likely to go. Radio-frequency identification devices__________.

most human interactions can be easily monitored

解析：【答案】D【解析】本题的要点在原文第二段“but”之后。前面说的是作者认为会影响到新技术的一些因素，在but之后，提出了自己真正关心的话题：“人们之间的大多数交往可能轻易就会受到监视。”所以，D为正确答案。应注意的是，C选项虽然和原文一致，但不是作者最关心的问题。

[单选题]The Klondike was the scene of one of the biggest gold rushes the world has ever known.

location

[单选题]Only a small minority of the mentally ill are liable to harm themselves or others,

likely

[单选题]回答{TSE}题: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.{TS}第51题应选：

Even

解析：【解析】句意为：__________是受过训练的马拉松长跑运动员也不能避免致命的心脏病突发。四个选项：then“然后”；though“虽然”；since“自从，既然”；even“甚至，即使”。

[单选题]请在第____处填上正确答案。

根据以下资料，回答下面的题目。 请在第____处填上正确答案。

extensive   

解析：此句意为：制造太能电池，必须进行……半导体加工。A项extensive“广阔的，广泛的”，B项interactive“互相作用的，相互影响的”，C项selective“精选的”，D项intensive“加强的，强烈的”。文中意思应为大量的半导体加工，故本题选A。