题目内容
Recent scientific evidence seems to indicate that this________ is incorrect.
A. reflection B. reputation C. appreciation D. assumption
D
That “Monday morning feeling” could be a crushing pain in the chest which leaves you sweating and gasping for breath. Recent research from Germany and Italy shows that heart attacks are more common on Monday mornings and doctors blame the stress of returning to work after the weekend break.
The risk of having a heart attack on any given day should be one in seven, but a six-year study helped by researchers at the Free University of Berlin of more than 2,600 Germans showed that the average person had a 20 percent higher chance of having a heart attack on a Monday than on any other day.
Working Germans are particularly not protected against attack, with a 33 percent higher risk at the beginning of the working week. Non-workers, by comparison, appear to be no more at risk on a Monday than any other day.
A study of 11,000 Italians proved 8 am on a Monday morning as the most stressful time for the heart, and both studies showed that Sunday is the least stressful day, with fewer heart attacks in both countries.
The findings could lead to a better understanding of what is the immediate cause of heart attacks, according to Dr Stefan Willich of the Free University. “We know a lot about long-term risk factors such as smoking and cholesterol（胆固醇）but we don’t know what actually causes heart attacks, so we can’t give clear advice on how to prevent them,” he said.
Monday mornings have a double helping of stress for the working body as it makes a rapid change from sleep to activity, and from the relaxing weekend to the pressures of work.
“When people get up, their blood pressure and heart rate go up and there are hormonal（内分泌）changes in their bodies,” Willich explained. “All these things can have an unfavourable effect in the blood system and increase the risk of a clot（血凝块）in the arteries（动脉）which will cause a heart attack.”
“When people return to work after a weekend off, the pace of their life changes. They have a higher workload, more stress, more anger and more physical activity,” said Willich.
【小题1】．Monday morning feeling, as this passage shows, .
| A．is not so serious as people thought |
| B．is harmful to working people in Germany and Italy |
| C．is the first killer in Germany and Italy. |
| D．is created by researchers in Germany and Italy |
| A．people’s working time | B．people’s living place |
| C．people’s diet and lifestyle | D．people’s nationalities |
| A．blood pressure | B．heart rate | C．hormonal changes | D．blood group |
| A．Stop working on Monday | B．Create a pleasant working environment |
| C．Get up late on Monday morning | D．Go to work with a doctor |
| A．The risk of having heart attacks on Monday mornings is the same as on any other day of the week to non-workers |
| B．33% of the Germans have heart diseases, therefore heart attacks are more common in Germany than in any other country. |
| C．20%of the Italians appear to have higher possibility of having heart attacks. |
| D．Non-smokers are more likely to have heart attacks on Sundays. |
Scientists have long understood the key role that oceans play in controlling the Earth’s climate. Oceans cover 70 per cent of the surface of the globe and store a thousand times more heat than the atmosphere does. What’s newer is the understanding of how this key component(组成部分) of our climate system responds to global warming.
A brake on global warming—for now
One of the oceans’ most important climate functions is absorbing heat and carbon dioxide(CO2), one of the gases that causes global warming. Acting as something absorbing heat, the oceans have absorbed huge amounts of heat and CO2 in the last forty years.
Fujita explains, “the oceans are saving us from faster climate change—they are putting a brake on the climate system.”
“That’s the good news,” he adds. “The bad news is that the oceans only slow the atmospheric warming. Once the oceans come to balance with a greenhouse-gas warmed earth, the extreme heat will remain in the atmosphere and things will get much hotter.” But where and how the oceans release this slowly increased heat is uncertain. And as the ocean stores heat, fragile(脆弱的) underwater ecosystems are struggling.
The most recent scientific report from the Intergovernmental Panel on Climate Change(IPCC) also notes with concern that the ocean is acidifying(酸化) because of increased absorption of atmospheric CO2. and thus causing a threat to shell-forming species. Sharp increase in CO2 levels will cause further acidification of the ocean.
Currents distributing heat
Another important role the oceans play is that of distributor(散布者). Oceans deliver heat and life-sustaining nutrition around the globe. Just as blood tube bring oxygen and nutrition to cells in the human body, the ocean’s currents carry oxygen, nutrients and heat throughout the Earth. The ocean distributes 25 to 50 per cent of energy the planet receives from the sun. For example, the Gulf Stream carries heat across the Atlantic. This warm current gives northwestern European a milder climate that it would normally have so far north. A change to the ocean’s circulation patterns could throw Europe into a colder period, even as the rest of the world is experiencing warmer temperatures.
【小题1】 We can infer from the passage that _______.
| A．the oceans cause global warming | B．the oceans stop global warming |
| C．the oceans release nutrients and heat | D．the ocean ecosystems face more dangers |
- produce oxygen and nutrients around
- absorb 25-50% of the energy from the sun
- distribute the atmosphere hotter
【小题3】 Which of the following are the results of the ocean absorbing heat and CO2?
a. It causes further acidification.
b. It makes the atmosphere hotter.
c. It balances the oceans with a green-house gas.
d. It affects shell-forming species.
e. It makes the oceans act as a heat sponge.
f. It controls the Earth’s climate.
| A．a-c-f | B．a-d-f | C．b-d-e | D．b-c-e |
| A．Asia would suffer a hotter climate. |
| B．Europe would become hotter |
| C．the rest of the world would become warmer. |
| D．the climate of Europe would become colder. |
There is probably no field of human activity in which our values and lifestyles are shown more clearly and strongly than they are in theclothes that we choose to wear．The dress of an individual is a kind of “sign language” that communicates a set of information and is usually the basis on which immediate impressions are formed．Traditionally, a concern
for clothes was considered to be an affair of females，while men took pride in the fact that they were completely lacking clothes consciousness．
This type of American culture is gradually changing as man’s dress takes on greater variety and color．Even as early as 1955，a research in Michigan said that men considered that the value of clothing in daily life was very important．White—collar workers in particular viewed dress as a symbol of ability，which could be used to impress or influence others，especially in the work situation．The white-collar worker was described as extremely concerned about the impression his clothing made on his boss．Although blue-collar workers were less aware that they might be judged on the basis of their clothing，they recognized that any difference from the accepted pattern of dress would be made fun of by fellow workers．
Since that time，of course，the patterns have changed，the typical white-collar worker may now be wearing the blue shirt，while the blue-
collar may be wearing a white shirt，but the importance of dress has not become less. Other researchers in recent years have helped to prove its importance in the lives of individuals at various age levels and in different social and economic status groups.
【小题1】The passage tells us that .
| A．our values and lifestyles are in no field of human activity |
| B．the clothes that we choose to wear have something to do with our values and lifestyles |
| C．our values and lifestyles are from the sign language |
| D．the clothes we choose to wear depend on a set of information and immediate impression |
| A．men cared very much for clothes |
| B．neither men nor women showed interest in clothes |
| C．both men and women paid great attention to their clothes |
| D．women concerned greatly about what they wore while men didn’t |
| A．they extremely concern about the impression their clothes make on their bosses |
| B．they know that people might judge them on the basisof their clothes |
| C．they want to impress and influence others |
| D．they don’t want to be laughed at |
| A．雕塑 | B．身份 | C．状况 | D．资格 |
They may be just passing your office, computer bag slung (悬挂) over one shoulder. Or they may be sitting in a car outside it, causally tapping away at a laptop. They look like innocent passers-by. In fact, they are stealing your corporate secrets.
Drive-by hacking is the trendy term given to the practice of breaking into wireless computer networks from outside the buildings that house them. A recent study in the UK, sponsored by RSA Data Security, found that two-thirds of organizations with wireless networks were risking their data in this way. Security experts patrolled (巡逻) several streets in the City of London seeking evidence of wireless networks in operation.
Of 124 that they identified, 83 were sending data without encrypting（加密）them. Such data could readily be picked up by a passer-by armed only with a portable computer, a wireless modem and a few pieces of software that can be freely downloaded from the Internet.
The data could include sensitive company documents containing valuable information. Or they could be e-mail identities and passwords that could be used by hackers to log into corporate networks as if they were legal users.
Most companies using wireless networking technology do not take even the simplest of measures to protect their data. Nearly all wireless network technology comes with some basic security features that need only to be activated (激活) in order to give a minimum level of security, for example, by encrypting the data being passed over the network.
Raymon Kruck, business development manager at Check Point Software, a security technology specialist, believes this could be partly a psychological problem. People see the solid walls of their building as safeguards and forget that wireless networks can extend up to 200 meters beyond physical walls.
Companies without any security at all on their wireless networks make it ridiculously easy for hackers to break in. Switching on the security that comes with the network technology should be automatic. Then there are other basic steps a company can take, says Mr. Kruck, such as changing the passwords on the network from the default (默认) setting.
Companies can also install firewalls, which form a barrier between the internal network and the public Internet. They should also check their computer records regularly to spot any abnormal activity, which might betray the presence of a hacker.
【小题1】According to the study sponsored by RSA Data Security, two thirds of the subjects _______.
| A．had most of their company data stolen |
| B．depended on wireless computer networks |
| C．were exposed to drive-by hacking |
| D．were unaware of the risk of wireless hacking |
| A．The number of computer hacking incidents. |
| B．The number of wireless computer networks identified. |
| C．The way in which data are sent and received. |
| D．The way in which data are hacked and stolen. |
| A．data encryption program | B．password security programs |
| C．illegal-user detection | D．firewall |
| A．wireless signal administration | B．changes in user’s awareness |
| C．users’ psychological health | D．stronger physical walls |
| A．book review | B．science fiction | C．textbook | D．computer magazine |