题目
题型：不详难度：来源：
Small numbers of people per household on average use more energy and goods per person. Greater numbers of households require more natural resources for construction. The possible result of this problem may be insufficient natural resources to meet consumer demand without endangering habitats important to biodiversity.
Personal freedom and social choice may come at huge environmental cost. Direct costs include visible damage to animal habitats and plant life. Indirect costs include the release of more greenhouse gases.
The effects of such “personal freedom and social choice” have already surfaced in south-west China’s Wolong Nature Reserve. In Wolong, they found that a reduced average household size was directly tied to an increase in homes, and thus an increase in the amount of firewood consumed for cooking and heating. The rise in wood fuel use has contributed to disappearance of forests and to the loss of habitats for giant pandas.
Curious about whether other parts of the world were experiencing similar phenomena, they got the support of a team of researchers including Stanford’s Paul Ehrlich, well-known for his population studies, to find out the household dynamics in 141 countries between 1985 and 2000. Their study proved that the difficult choice of Wolong is part of a global trend.
In the 76 countries considered biodiversity “hotspots”, such as the United States, Brazil, Australia, and Kenya, the number of households grew by 3.1% every year, while the population increased just 1.8%. Meanwhile, the number of people per home dropped from 4.7 to 4.0. The decline in household size has resulted in 155 million additional households in hotspot countries, almost always limiting biodiversity.
In the 10 non-hotspot countries — those without high-density areas of animal and plant species — similar results were found, though on a lesser scale. Even in countries experiencing population decline, such as New Zealand, the number of households still increased because of a reduction in household size.
小题1:What does the underlined word “insufficient” mean?
| A．Plenty of. | B．Not enough. | C．Abundant. | D．Little. |
| A．is facing the same threat as many other parts of the world |
| B．sets a good example in protecting animals |
| C．is a place where giant pandas and their habitats are not affected |
| D．is a place where animals and their habitats are seriously damaged |
| A．Biodiversity is better kept in countries with smaller populations. |
| B．Biodiversity is better kept in hotspot countries. |
| C．The threat to nature from reduction in household size is a worldwide problem. |
| D．Both hotspot countries and non-hotspot countries face the threat of the same scale. |
| A．Reduced household size leads to an increase in household number. |
| B．Modern homes consume more natural resources. |
| C．How to meet consumer demand without endangering animals and their habitats. |
| D．Reduction in household size as well as increase in household number threatens nature. |
答案
小题1:B
小题1:A
小题1:C
小题1:D
解析
核心考点
试题【With the development of society and economy, animals and their habitats are gett】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
Researchers in Canada just published a study in the journal Psychological Science that says trying to get people to think more positively can actually have the opposite effect: it can simply highlight how unhappy they are.
The study’s authors, Joanne Wood and John Lee of the University of Waterloo and Elaine Perunovic of the University of New Brunswick, begin by citing older research showing that when people get feedback which they believe is very positive, they actually feel worse, not better. If you tell your stupid friend that he has the potential of an Einstein, you’re just underlining his faults. In one 1990s experiment, a team including psychologist Joel Cooper of Princeton asked participants to write essays opposing funding for the disabled. When the essayists were later praised for their sympathy, they felt even worse about what they had written.
In this experiment, Wood, Lee and Perunovic measured 68 students’ self-esteem. The participants were then asked to write down their thoughts and feelings for four minutes. Every 15 seconds, one group of students heard a bell. When it rang, they were supposed to tell themselves, “I am lovable.”
Those with low self-esteem didn’t feel better after the forced self-affirmation. In fact, their moods turned significantly darker than those of members of the control group, who weren’t urged to think positive thoughts.
The paper provides support for newer forms of psychotherapy (心理治疗) that urge people to accept their negative thoughts and feelings rather than fight them. In the fighting, we not only often fail but can make things worse. Meditation techniques, in contrast, can teach people to put their shortcomings into a larger, more realistic perspective. Call it the power of negative thinking.
小题1:What do we learn from the first paragraph about the self-help industry?
| A．It has produced positive results. |
| B．It is a highly profitable industry. |
| C．It is based on the concept of positive thinking. |
| D．It was established by Norman Vincent Peale. |
| A．point out | B．lay emphasis on | C．pay no attention to | D．take for granted |
| A．Encouraging positive thinking many do more good than harm. |
| B．Self-affirmation can bring a positive change to one’s mood. |
| C．There can be no simple therapy for psychological problems. |
| D．Forcing a person to think positive thoughts may lower their self-esteem. |
| A．Meditation may prove to be a good form of psychotherapy. |
| B．People can avoid making mistakes through meditation. |
| C．Different people tend to have different ways of thinking. |
| D．The effects of positive thinking vary from person to person. |
This exciting research is just beginning. And in the meantime, companies are also experimenting with adding vitamins, minerals, medicines, and other substances that could give gum the power to cure headaches and fight everything from serious diseases to bad breath.
Other researchers are finding that gum might work better than a pill to deliver medicines and other substances into the bloodstream. That’s because the lining (膜) of our cheeks can absorb certain substances more quickly than our stomachs and intestines (肠) can.
That discovery could help other researchers develop medicine-containing gums that fight colds, ease headaches, battle nervousness, and more. Scientists might even create antimicrobial (抗菌的) gums that cure bad breath.
Those projects may take years, but gum scientists have already had at least one recent success: They’ve created a gum that could help us stay awake.
Researchers have produced a gum called Stay Alert. Each stick has as much caffeine as a cup of coffee. It can take an hour for the caffeine in coffee to have its full effect, but the caffeine in Stay Alert hits in just a few minutes.
The gum is easy to transport and it’s stable in cold and hot climates. Unlike a pill, it doesn’t require water to swallow. Those qualities make it easy for soldiers to use.
For now, Stay Alert is available only to the military (军队). The manufacturer may one day offer it for sale to the public. People who work at night, such as truck drivers and medical personnel who ride in ambulances, might benefit from a product like Stay Alert.
小题1: The passage mainly talks about _____.
| A．the rule of forbidding chewing gum in school |
| B．new research on chewing gum |
| C．different kinds of chewing gum |
| D．the relationship between chewing gum and medicine |
| A．Touches. | B．Attacks. | C．Takes effect. | D．Affects badly. |
| A．stay awake | B．fight colds |
| C．cure headaches | D．overcome nervousness |
| A．stay Alert is not easy to store |
| B．stay Alert needs water to swallow |
| C．stay Alert is available to the public now |
| D．we can’t buy gums that cure bad breath now |
Dr Rajendra Pachauri, chair of the United Nations Intergovernmental Panel on Climate Change, said that people should then go on to reduce their meat consumption even further.
Pachauri, who was re-elected the panel’s chairman for a second six-year term last week, said diet change was important because of the huge greenhouse gas emissions (排放) and other environmental problems associated with raising cattle and other animals. “It was relatively easy to change eating habits compared to changing means of transport,” he said.
The UN’s Food and Agriculture Organisation has estimated that meat production accounts for nearly a fifth of global greenhouse gas emissions. These are produced during the production. For example, ruminants (反刍动物), particularly cows, give off a gas called methane, which is 23 times more effective as a global warming agent than CO2.
Pachauri can expect some opposite responses from the food industry to his advice, though last night he was given unexpected support by Masterchef presenter and restaurateur John Torode. “I have a little bit and enjoy it,” said Torode. “Too much for any person is bad. But there’s a bigger issue here: where the meat comes from. If we all bought British and stopped buying imported food, we’d save a huge amount of carbon emissions.”
Professor Robert Watson, the chief scientific adviser for the Department for Environment Food and Rural Affairs, said government could help educate people about the benefits of eating less meat, but it should not regulate. “Eating less meat would help, there’s no question about that,” Watson said.
However, Chris Lamb, head of marketing for pig industry group BPEX, said the meat industry had been unfairly targeted and was working hard to find out which activities had the biggest environmental impact and reduce them. “Some ideas were contradictory,” he said. “For example, one solution to emissions from cattle and other animals was to keep them indoors, but this would damage animal welfare. Climate change is a very young science and our view is there are a lot of simple solutions being proposed.”
小题1:What is directly related to global warming?
| A．Consumption of meat. | B．Growth of cattle. |
| C．Methane from ruminants. | D．Processing of meat. |
| A．Rajendra Pachauri. | B．John Torode. | C．Robert Watson. | D．Chris Lamb. |
| A．we should try to keep away from cattle | B．ruminants should not be left outdoors |
| C．the meat industry will soon close down | D．we must do our duty to save the earth |
| A．Less meat, slower global warming |
| B．More animals, more greenhouse gas |
| C．Less imported food, better our environment |
| D．Greater diet change, smaller climate change |
Mary’s story is not unusual in Britain. According to the latest government figures, pupil absences are rising, despite schools taking a hard line on truancy (逃学).
Dr Philip James from Cardiff University thinks she knows why: “As schools make more efforts to find and punish missing students, students find better ways to avoid being caught.”
For several years, James has researched teenager truancy and discovered that most truancy was “a response to factors within the school”. Students that skip school are not necessarily less advanced or less intelligent. They complained of teachers who failed to engage them, and of “boring” lessons. “Many of them really enjoy school and believe in education, but drop out when aspects of it are ineffective.” James says.
The views of students like Adam, who believes that skipping lessons has little impact on his schooling, are common. “I only take off for a lesson, or a couple of days. It doesn’t affect my education,” he told James.
James believes that schools need to address the question of why pupils want to leave in the first place. “Pupils need help from the start.” she says. “Schools need to look at the reasons for truancy rather than the number, so that instead of walking away from school, students have the skills and chances to talk through problems and make a change.”
小题1:What is one of the reasons that many students skip school according to James’ study?
| A．They feel they have fallen behind in their studies. |
| B．They have no interest in school education. |
| C．They now have more interesting things to do. |
| D．They find some lessons and teachers uninteresting. |
| A．experiencing a problem with | B．having a strict attitude towards |
| C．finding it difficult to deal with | D．having little success with |
| A．school education needs improvement |
| B．good students also need a break from school |
| C．schools need to pay more attention to truancy |
| D．many students believe occasional truancy isn’t serious |
| A．Fire all their unqualified teachers. |
| B．Improve communication with students. |
| C．Develop better ways to discover truancy. |
| D．Introduce more serious punishments. |
A study of 192 third and fourth graders, generally aged eight and nine, found that children who cut the number of hours spent watching television gained nearly two pounds(0.9kg) less over a one-year period than those who did not change their television diet.
"The findings are important because they show that weight loss can only be the result of a reduction in television viewing and not any other activity," said Thomas Robinson, a pediatrician(儿科专家) at Stanford University.
"American children spend an average of more than four hours per day watching television and videos or playing video games, and rates of childhood being very fat have doubled over the past 20 years," Robinson said.
In the study, presented this week to the Pediatric Academic Societies‘ annual meeting in San Francisco, the researchers persuaded about 100 of the students to reduce their television viewing by one-quarter to one-third.
Children watching fewer hours of television showed a significantly smaller increase in waist size and had less body fat than other students who continued their normal television viewing, even though neither group ate a special diet or took part in any extra exercise.
"One explanation for the weight loss could be the children unstuck to the television may simply have been moving around more and burning off calories," Robinson said.
"Another reason might be due to eating fewer meals in front of the television. Some studies have suggested that eating in front of the TV encourages people to eat more," Robinson said.
小题1:The author tries to tell us in the first two paragraphs that ________.
| A．children will get fatter if they eat too much |
| B．children will get thinner if they eat less |
| C．children will get fatter if they spend less time watching TV |
| D．children will get fatter if they spend more time watching TV |
| A．is more than four hours a day | B．is less than four hours a day |
| C．doubled in the last twenty years | D．is more than on any other activities |
| A．six hours | B．eight hours | C．three hours | D．one hour |
| A．Children usually eat fewer while watching TV. |
| B．Children usually eat more while watching TV. |
| C．Children eat the same amount of meals while watching TV. |
| D．Children usually eat nothing while watching TV. |
A. They usually eat more while watching TV.
B. They burn off fewer calories.
C. They change their diet while watching TV.
D. Both A and B.
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