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The underlined word “differentiate ” could best be replaced by _______
A、share
B、distinguish
C、merge
D、unite
答案
更多“Paul is colorblind. He cannot differentiate between red and green, or between yellow a”相关的问题
第1题
Paul is working hard these days. He _______ pass the exam this time.
A.has to
B.shall
C.may
D.need
第3题
A.render
B.professional
C.indifferent
D.indebted
E.regarding
F.concernG、fascinateH、pursueI、favorableJ、the case
第5题
Global Cancer Rates to Rise by 50% by 2020
The number of new cancer cases worldwide is expected to increase by 50% by the year 2020. But a new report suggests that as many as a third of new cancers could be avoided by adopting healthier lifestyles and through public health action.
The World Cancer Report, released by the International Agency for Research on Cancer, shows that cancer has now emerged as a major public health threat in developing countries as well as rich ones.
Overall, cancer was responsible for 12% of all deaths in 2000. But in many
countries more than a quarter of all deaths are caused by cancer.
The report shows that 10 million new cancers were diagnosed globally in 2000, and that number is expected to rise to 15 million by 2020. Researchers say most of that increase will mainly be due to steadily aging populations in both developed and developing countries and current trends in smoking and other unhealthy habits.
"Cancer has emerged as a major public health problem in developing countries for the first time, matching its effect in industrialized (工业化的) ountries," said researcher Paul Kleihues, MD, director of IARC, in a news release. "Once considered a 'Western' disease, the Report highlights that more than 50 percent of the world's cancer burden, in terms of both numbers of cases and deaths, already occurs in developing countries."
The risk of being diagnosed with cancer in developed countries is double that in less-developed ones. However, the risk of dying from cancer is much higher in developing countries, where 80% of cancer patients already have late-stage incurable tumors (肿瘤) at the time of diagnosis.
Researchers say cancer rates have traditionally been higher in developed countries due to greater exposure to tobacco, occupational carcinogens (致癌物); and an unhealthy Western diet and lifestyle. As less-developed countries become industrialized and more prosperous, they tend to adopt the high-fat diet and low physical activity levels typically seen in the West which increase cancer rates.
第 41 题 The report says that steps could be taken to reduce about
A．50% of new cancers.
B．33% of new cancers.
C．12% of new cancers.
D．80% of new cancers.
第6题
Questionsare based on the following passage．
In London， over half of the homes built between 1919 and 1980 had one garage．But many arebecoming needless．Between 2002 and 2012 the proportion of vehicles kept in garages at night droppedfrom 22% to 14%．This is in part because some households now have more cars than garage space．Butit is also because big modern cars do not fit in older garages， says David Leibling， a transport expert．
Few rust when left outside， and many are more difficult to steal: between 2003 and 2013 the number ofvehicle being stolen in England and Wales fell 76%．Instead， garages now solve a different set ofproblems．
Householders unable to move to larger homes have taken to filling their garages with unnecessaryand unwanted things．Some garages have been converted for aging parents for their convenience， says Paul Bishop， who runs a garage conversion company in Bedfordshire．Also， some young people unableor unwilling to leave home may have an option to live in the garage．In addition， a garage may be rentedto young folks fond of music．It is， more often than not， an ideal place to freely play music．
However， many publicly owned garages lie empty．Of the 6，000 garages owned by Hackney
council， around 40% are free．Over 3，000 garages owned by ten housing associations are unused and the land they take up is unfit for building homes upon， says Steve O"Connell， a councilor at the London Assembly．He thinks they could be turned into small offices．That has already happened in places such as Berlin．
Nevertheless converting garages can be troublesome， says Bill Hodgson of University College London．Few councils are enthusiastic enough to truly support the idea and put it into practice．A recent proposal to turn some garages in north London into shelters for the homeless has been rejected; councillors feared that local residents would not approve．Getting planning permission can be complex，
and developing on local authority land is often faced with various kinds of problems．Like the garages themselves， these plans may be useless and abandoned．
In the viewpoint of David Leibling， many garages are unused for velficles in that__________． 查看材料
A.the number of vehicles in the garages being stolen decreases by 76%
B.big modern vehicles are covered with rust when placed in the garages
C.big modem vehicles do not suit older garages
D.some families have more garages than vehicles
第7题
Most investigators concur that certain facial expressions suggest the same emotions in a people. Moreover, people in diverse cultures recognize the emotions manifested by the facial expressions. In classic research Paul Ekman took photographs of people exhibiting the emotions of anger, disgust, fear, happiness, and sadness. He then asked people around the world to indicate what emotions were being depicted in them. Those queried ranged from European college students to members of the Fore, a tribe that dwells in the New Guinea highlands. All groups including the Fore, who had almost no contact with Western culture, agreed on the portrayed emotions. The Fore also displayed familiar facial expressions when asked how they would respond if they were the characters in stories that called for basic emotional responses. Ekman and his colleagues more recently obtained similar results in a study of ten cultures in which participants were permitted to report that multiple emotions were shown by facial expressions. The participants generally agreed on which two emotions were being shown and which emotion was more intense.
Psychological researchers generally recognize that facial expressions reflect emotional states. In fact, various emotional states give rise to certain patterns of electrical activity in the facial muscles and in the brain. The facial-feedback hypothesis argues, however, that the causal relationship between emotions and facial expressions can also work in the opposite direction. According to this hypothesis, signals from the facial muscles ("feedback") are sent back to emotion centers of the brain, and so a person's facial expression can influence that person's emotional state. Consider Darwin's words: "The free expression by outward signs of an emotion intensifies it. On the other hand, the repression, as far as possible, of all outward signs softens our emotions.' Can smiling give rise to feelings of good will, for example, and frowning to anger？
Psychological research has given rise to some interesting findings concerning the facial- feedback hypothesis. Causing participants in experiments to smile, for example, leads them to report more positive feelings and to rate cartoons (humorous drawings of people or situations) as being more humorous. When they are caused to frown, they rate cartoons as being more aggressive.
What are the possible links between facial expressions and emotion？ One link is arousal, which is the level of activity or preparedness for activity in an organism. Intense contraction of facial muscles, such as those used in signifying fear, heightens arousal. Self-perception of heightened arousal then leads to heightened emotional activity. Other links may involve changes in brain temperature and the release of neurotransmitters (substances that transmit nerve impulses). The contraction of facial muscles both influences the internal emotional state and reflects it. Ekman has found that the so-called Duchenne smile, which is characterized by "crow's feet" wrinkles around the eyes and a subtle drop in the eye cover fold so that the skin above the eye moves down slightly toward the eyeball, can lead to pleasant feelings.
Ekman's observation may be relevant to the British expression "keep a stiff upper lip" as
A．curious
B．unhappy
C．thoughtful
D．uncertain
第8题
But after decades of hype, American offices may finally be losing their paper obsession. The demand for paper used to outstrip the growth of the US economy, but the past two or three years have seen a marked slowdown in sales—despite a healthy economic scene.
Analysts attribute the decline to such factors as advances in digital databases and communication systems. Escaping our craving for paper, however, will be anything but an easy affair.
"Old habits are hard to break," says Merilyn Dunn, a communications supplies director. "There are some functions that paper serves where a screen display doesn't work. Those functions are both its strength and its weakness. "
In the early to mid-90s, a booming economy and improved desktop printers helped boost paper sales by 6 to 7 percent each year. The convenience of desktop printing allowed office workers to indulge in printing anything and everything at very little effort or cost.
But now, the growth rate of paper sales in the United States is flattening by about half a percent each year. Between 2004 and 2005, Ms. Dunn says, plain white office paper will see less than a 4 percent growth rate, despite the strong overall economy. A primary reason for the change, says Dunn, is that for the first time ever, some 47 percent of the workforce entered the job market after computers had already been introduced to offices.
"We're finally seeing a reduction in the amount of paper being used per worker in the workplace," says John Maine, vice president of a pulp and paper economic consulting firm. "More information is being transmitted electronically, and more and more people are comfortable with the information residing only in electronic form. without printing multiple backups. "
In addition, Mr. Maine points to the lackluster employment market for white-collar workers—the primary driver of office paper consumption—for the shift in paper usage.
The real paradigm shift may be in the way paper is used. Since the advent of advanced and reliable office-network systems, data storage has moved away from paper archives. The secretarial art of "filing" is disappearing from job descriptions. Much of today's data may never leave its original digital format.
The changing attitudes toward paper have finally caught the attention of paper companies, says Richard Harper, a researcher at Microsoft. "All of a sudden, the paper industry has started thinking. 'We need to learn more about the behavioural aspects of paper use. '" he says. "They had never asked, they'd just assumed that 70 million sheets would be bought per year as a literal function of economic growth. "
To reduce paper use, some companies are working to combine digital and paper capabilities.
For example, Xerox Corp. is developing electronic paper: thin digital displays that respond to a stylus, like a pen on paper. Notations can be erased or saved digitally.
Another idea, intelligent paper, comes from Anoto Group. It would allow notations made with a stylus on a page printed with a special magnetic ink to simultaneously appear on a computer screen.
Even with such technological advances, the improved capabilities of digital storage continue to act against "paperlessness," argues Paul Saffo, a technology forecaster. In his prophetic and metaphorical 1989 essay, "The Electronic Pinata (彩罐)", he suggests that the increasing amounts of electronic data necessarily require more paper.
The information industry today is like a huge electronic pinata, composed of a thin paper crust surrounding an electronic core. " Mr. Saffo wrote. The growing paper crust "is most noticeab
A．It further explains high-tech hubris.
B．It confirms the effect of high-tech hubris.
C．It offers a cause for high-tech hubris.
D．It offers a contrast to high-tech hubris.
