正确答案: A

bioterrorism is an engineered threat to human beings

题目：From the text we learn that__________.

解析：【答案】A【解析】从原文第三段第一句话：“Whether the biggest threat is natural or engineered，much remains to be done”看出，bioterrorism是engineered，所以A对。B选项错在“can be arrested”上。原文是说能够减轻，但不能制止。C说自然的和恐怖主义性质的传染病是同一种性质的，显然不对，因为一个是natural，一个是engineered。D项同样不对。

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学习资料的答案和解析：

[单选题]请在第__(60)__处填上正确答案。

根据材料，完成下面的题目。Public Relations Public relations is a broad set of planned communications about the company, including publicity releases,designed to promote goodwill and a favorable image. Publicity then is part of public relations when it is initiated by the firm, usually in the51of press releases or press conferences. Since public relations involves communications with stockholders, financial analysts, government officials, and other noncustomer groups, it is usually.52outside the marketing department, perhaps as a staff department or outside consulting firm reporting to top management. Thisorganizational placement can be a 53 because the public relations department or consultant will likely not be in line with marketing efforts. Poor communication and no coordination can be the54. Although the basic purpose of public relations is to provide positive influence55 the public image, this influence generally maybe less than 56 provided by the other components of the public image mix. Publicity nay be in the form of news releases that have57overtones for the company initiate by the public relations department. Publicity on the other 58 should not be divorced from the marketing department,as it can 59 a useful adjunct( 辅助 ) to the regular advertising. 60 , not all publicity is initiated by the firm; some can 61from an unfavorable press as a reaction to certain actions or lack of 62that are controversial or even downright ill-advertised.The 63we wish to emphasize is that a firm is deluding( 自欺 ) itself if it thinks its public relations function,whether within the company or an outside firm, can take 64 of public image and opportunities. Many of these have to do with the way the 65 does business, such as its product quality, the servicing and handling of complaints, etc.请在第__(51)__处填上正确答案。

Furthermore 

解析：【答案】C【解析】句意为：此外，并非所有的宣传都由公司发起。四个选项：Yet“然而；0therwise“否则”；Furthermore“此外；Rather“而不是”。

[单选题]________

回答下面的题目：A．that have favorable overtones for the company initiated by the public relations departmentB．not all publicity is initiated by the firmC．usually in the form of press releases or press conferencesD．such as its product quality, the servicing and handling of complaints, and the tenor of the advertisingE. what it means to the company isF. Although the basic purpose of public relations is to provide positive influence on the public image_____

[单选题]回答{TSE}题：ArchitectureArchitecture is to building as literature is to the printed word. The best buildings are often so well constructed that they outlast their original use. They then survive not only as beautiful objects， but as documents of the history of cultures. These achievements are never wholly the work of individuals. Architecture is a social art.The renaissance brought about an entirely new age， not only in philosophy and literature but in the visual arts as well. In architecture， the principles and styles of ancient Greece and Rome were brought back to life and reinterpreted. They remain dominant until the 20th century.Many kinds of stone are used as building materials. Stone and marble were chosen for important monuments because they are not burnable and can be expected to endure. Stone architecture was often blended with stone sculpture. The use of stone has declined， however， because a number of other materials are more adaptable to industrial use.The complexity of modern life calls for a variety of building. More people live in mass housing and go to work in large office buildings; they spend their income in large shopping centers， send their children to many different kinds of schools， and when they are sick they go to specialized hospitals and clinics. All theses different types of buildings accumulated experiences needed by their designers.By the middle of the 20th century， modern architecture， which was influenced by new technology and mass production， was dealing with increasingly complex social needs. Important characteristics of modern architectural works are expanses of glass and the use of reinforced concrete. Advances in elevator technology， air conditioning， and electric lighting have all had important effects.{TS}Paragraph 2_____________.

[单选题]The volunteers found the test more difficult when they did it the second time.

根据材料，完成下面的题目。Kicking the Habit       What is a bad habit? The most definition is that it is something that we do regularly, almost without thinking about it. and which has some sort of negative consequence. This consequence could affect those around us, or it could affect us personally. Those who deny having bad habits are probably lying. Bad habits are part of what makes us human.       Many early habits, like sucking out thumb, are broken when we are very young. We are either told to stop doing it by our parents, or we consciously or subconsciously observe that others do not have the same habit, and we gradually grow out of it. It is when we intentionally or unintentionally pick up new habits in our later childhood or early adulthood that it becomes a problem. Unless we can break that habit early on, it becomes a part of our life, and becomes "programmed" into our brain.       A recent study of human memory suggests that no matter how hard we try to change out habits, it is the old ways that tend to win, especially in situations where we are rushed, stressed or overworked. Habits that we thought we had got rid of can suddenly come back. During the study program, the researchers showed a group of volunteers several pictures, and gave them words to associate with them. They then showed the volunteers the same picture again, and gave them new words to associate with them.       A few days later, the volunteers were given a test. The researchers showed them the pictures, and told them to respond with one of the words they had been given for each one. It came as no surprise that their answers were split between the first set of words and second. Two weeks later, they were given the same test again. This time, most of them only gave the first set of words. They appeared to have completely forgotten the second set.The study confirms that the responses we learn first are those that remain strongest over time. We may try to change out ways, but after a while, the response that comes to mind first is usually the first one we learned. The more that response is used, the more automatic it becomes and the harder it becomes to respond in any other way.       The study therefore suggests that over time, our bad habits also become automatic, learned behavior. This is not good news for people who pick up bad habits early in life and now want tochange or break them. Even when we try to put new, good intentions into practice, those previous learned habits remain stronger in more automatic, unconscious forms of memory.Boys usually develop bad habits when they are very young.

Not mentioned

解析：【题 干】志愿者们发现第二次测试更加困难。 【解 析】文章没有提及志愿者是否发现更难。因此答案为C未提及。 【考点延伸】find+名词+形容词的结构中，形容词为补语。

[单选题]These are defensive behavior patterns which derive fromour fears.

stem

[单选题]

回答下面的题目：Do you ever wish you were moreoptimistic，someone who always(51) __________ to be successful?Having someone around whoalways(52) __________the worst isn’t really a lot of(53) __________．We all know someone who sees a single cloud on asunny day and says，“It looks(54)rain．”But if you catch yourself thinkingsuch things，it’s important to dosomething(5 5) __________it．You can change your view of life，(56) __________to psychologists．It only takes a little effort，and you’llfind life more rewarding as a(57) __________．Optimism，they say，is partly about self—respectedconfidence but it’s also a more positive way of looking at life and all it hasto(58) __________．Optimists are more(59) __________tostart new projects and are generally more prepared to take risks．Upbringing is obviously veryimportant in forming your(60) __________to the world．Some people are brought up to(61) __________toomuch on others and grow up forever blaming other people when anything(62) __________wrong．Most optimists，on the(63) __________hand，have been brought up not to(64) __________failure as the end of theworld-they just(65) __________with their lives．

get on

解析：A项get up意为“起床”；B项get on意为“上车，向前进”；C项get out意为“离去，出去”；D项get over意为“克服”。本句的意思是那些在不把失败看作世界末日环境中成长起来的人在事情出错时只是继续过自己的日子。所以选B。

[单选题]

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．

outskirts

解析：联系上下文，本句后半段提到“市中心”，再根据句意，可得出前面是说“郊区”，只有outskirts是正确答案，故选D。

[单选题]The committee was asked to render a report on the housing situation.

summarize

解析：句意为：该委员会被要求呈现住房情况报告。render“提出”，四个选项：copy“复制”；publish“出版”：furnish“提供”；summarize“总结”。