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Feelingsoftenrun high where insects are concerned,with many people even sick when seeing them, let alone touch or swallow them.And yet insects present a huge nutritional opportunity as an increasing globalpopulation seeks more sources of food and feed.
Insects have generally high levels of animal protein and key micronutrients with lower environmentalfootprints than traditional alternatives,and they can be raised on leftovers.But cultural,social and economicproblems remain,reports an article published today in Nutrition Bulletin.
“Insects present a nutritional opportunity,but it is unclear how their nutritional quality is influenced bywhat they are fed,”says Darja Dobermann,a researcher at the University of Nottingham.“In idealconditions,insects have a smaller environmental impact than most traditional western forms of animal protein; less known is how to raise insect production while maintaining these environmental benefits.”
“Studies overall show that insects could make valuable economic and nutritional contributions to the foodor feed systems,but there are no clear regulations in place to bring insects into such supply systems withoutthem turning into a more expensive version of poultry（家禽）for food,” says Dobermann.
The article highlights how insects have been a source of food for hundreds of years in more than 100countries with over 2,000 species that can be eaten; in central Africa,up to 50% of dietary protein has comefrom insects,with their market value higher than many alternative sources of animal protein.
Insects need to be large enough to make the effort of catching them worthwhile and easy to locate,preferably in predictably large quantities.They are consumed at various life stages,as raw,fried,boiled, roasted or ground food.
1.Which of the following is the advantage of raising insects for food?
A. It will offer people work opportunities.
B. It is environmentally friendly.
C. It will replace traditional food.
D. It will result in less leftovers
2.What can be inferred from Dobermann’s words?
A. Raising insects for food has become popular.
B. Raising insects can’t solve food problems.
C. More should be done to raise insects for food.
D. More money can be made by raising insects.
3.What does the underlined word in paragraph 4 stand for?
A. Insects. B. Regulations.
C. Feed systems. D. Supply systems.
4.Which is the possible title of this passage?
A. How to Raise Insects B. Raising Insects for Money
C. Insects Seem No Longer Ugly D. A New Source of Food
高三英语阅读理解中等难度题查看答案及解析
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Nowadays many people are concerned about the problem of what to do with electronic waste such as old televisions, computers, radios, cellular telephones and other electronic equipment.
Electronic trash, or e-waste, is piling up faster than ever in American homes and businesses. People do not know what to do with old televisions or computers so they throw them in the trash.
National Solid Waste Management Association (NSWMA) state programs director Chaz Miller says the large amount of electronic waste Americans product is not unexpected.
The US Environmental Protection Agency (EPA) estimates more than 400 million consumer electronic items are dumped each year, and there is a push by more states to ban the waste from landfills (垃圾填埋场) and create recycling programs. They can be torn apart and sorted for useable parts. Mike Fannon who runs the plant in Baltimore says, “There are lots of valuable metals that can be recovered and reused instead of just putting them in the landfill, and in certain components there are some materials that should not really be in the landfill.”
Fannon says nearly 20 percent of electronic waste is recycled nationwide. Thirteen years ago, it was only about 6 percent. Recycling rates continue to rise as more communities have banned electronics from landfills in order to keep e-waste poisons like lead (铅) and mercury (汞) out of garbage dumps.
This year several states like Vermont imposed a ban on electronic waste in landfills. More than 25 other states have also adopted bans on e-waste in landfills. Chaz Miller says more can be done to boost electronic waste recycling.
“We can do much better,” noted Miller. “I think clearly our goal should be to do as well as we do recycling newspapers.”
1.Which of the following does NOT belong to e-waste?
A. Old televisions. B. Old computers.
C. Old cell phones. D. Old newspapers.
2.Why is e-waste banned from landfills in many states?
A. Because it can not be recycled.
B. Because the landfills are already full.
C. Because it might damage the environment.
D. Because it can be shipped to other countries.
3.According to Mike Fannon, what might be the best way of dealing with e-waste?
A. Recycling it. B. Selling it.
C. Burying it. D. Breaking it.
4.What can we learn from the passage?
A. Chaz Miller works for EPA.
B. Miller is optimistic about the future of e-waste.
C. At present, less than 10 percent of e-waste is recycled.
D. All states in the US have banned e-waste from landfills.
高三英语阅读理解困难题查看答案及解析
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There are many programs for high school students today that help isolated teenagers cope with loneliness．However，loneliness is not only an issue for teens but also an important and rarely acknowledged one in the elderly．
In Britain，Tracey Crouch was appointed to be the first Minister of Loneliness in order to address the issues caused by loneliness．This is the first time such a position has been created．
In Britain，there are around 9 million people who say they are lonely frequently．In Germany，a study conducted by Ruhr University Bochum found that 20 percent of people over the age of 85 felt lonely，and 14 percent of those between age 45 and 65 felt socially isolated．In the United States，more than 25 percent of the population lives alone，more than 50 percent are unmarried．
Isolation is generally associated with cardiovascular disease，depression，obesity，and anxiety．Additionally，the stress from loneliness can cause your cells to change on a molecular(分子)level that reduces its abilities to defend your body against diseases．In fact，doctors believe having feelings of loneliness is equivalent to smoking 15 cigarettes per day in regard to its impact on health!
In Britain，the new Minister of Loneliness will help establish government policies on the issue and fund charities to devote their efforts towards aiding loneliness．There are charities that link lonely seniors to high school students in order to give them a line of communication whenever they feel lonely!
The possibilities for the new Minister of Loneliness are endless．For example，she can provide education services to household businesses so that they can identify lonely customers if they see one．Loneliness fits into the category of being a social issue that must be monitored by the entire community in order to help those in need．Hence，government involvement in medical services and care for seniors and others is essential for happy seniors．
1.What’s the main idea of the passage?
A. UK becomes the capital of loneliness． B. Loneliness affects old people’s life．
C. Many teenagers suffer from loneliness． D. UK appoints Minister of Loneliness．
2.How did the writer develop the third paragraph?
A. By listing some specific numbers．
B. By giving examples of lonely people．
C. By pointing out similarities and differences．
D. By comparing different cultures in different countries．
3.What does the underlined words in Paragraph 4 mean?
A. Relevant． B. Equal．
C. Opposite． D. Superior．
4.What will the Minister of Loneliness do?
A. Do housework for lonely people．
B. Develop friendships with the elderly．
C. Help fund charities to aid lonely people．
D. Communicate with depressed school students．
高三英语阅读理解中等难度题查看答案及解析
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There are many programs for high school students today that help lonely teenagers deal with loneliness. However, loneliness is not only an issue for teens but also an important and rarely acknowledged one in the elderly.
In Britain, Tracey Crouch was appointed to be the first Minister of Loneliness in order to address the issues caused by loneliness. This is the first time such a position has been created.
In Britain, there are around 9 million people who say they are lonely frequently. In Germany, a study conducted by Ruhr University Bochum found that 20 percent of people over the age of 85 felt lonely, and 14 percent of those between age 45 and 65 felt socially lonely. In the United States, more than 25 percent of the population lives alone, more than 50 percent are unmarried.
Loneliness is generally associated with heart disease, overweight, and anxiety. Additionally, the stress from loneliness can cause your cells to change on a molecular(分子)level that reduces its abilities to defend your body against diseases. In fact, doctors believe having feelings of loneliness is equivalent to smoking 15 cigarettes per day in regard to its effect on health!
In Britain, the new Minister of Loneliness will help introduce government policies on the issue and fund a charity—an organization for helping people in need, to devote their efforts towards aiding loneliness. There are charities that link lonely seniors to high school students in order to give them a line of communication whenever they feel lonely!
The possibilities for the new Minister of Loneliness are endless. For example, she can provide education services to household businesses so that they can identify lonely customers if they see one. Loneliness fits into the category of being a social issue that must be monitored by the entire community in order to help those in need. Therefore, government involvement in medical services and care for seniors and others is vital for happy seniors.
1.How does the author develop Paragraph 3?
A. By listing some statistics.
B. By giving examples of lonely people.
C. By pointing out similarities and differences.
D. By comparing different cultures in different countries.
2.What does the underlined word “equivalent” in Paragraph 4 probably mean?
A. Relevant. B. Similar.
C. Opposite. D. Superior.
3.What will the Minister of Loneliness do?
A. Do housework for lonely people.
B. Develop friendships with the elderly.
C. Help fund charities to aid lonely people.
D. Communicate with anxious school students.
4.What is the main idea of the text?
A. UK becomes the capital of loneliness. B. Loneliness affects old people’s life worldwide.
C. Many teenagers suffer from loneliness. D. UK’s Minister of Loneliness settles loneliness.
高三英语阅读理解困难题查看答案及解析
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There are many programs for high school students today that help lonely teenagers deal with loneliness. However, loneliness is not only a problem for teens but also an important and rarely acknowledged one in the elderly.
In Britain, Tracey Crouch was appointed to be the first Minister of Loneliness in order to address the problems caused by loneliness. This is the first time such a position has been created.
In Britain, there are around 9 million people who say they are lonely frequently. In Germany, a study conducted by Ruhr University Bochum found that 20 percent of people over the age of 85 felt lonely, and 14 percent of those between age 45 and 65 felt socially lonely. In the United States, more than 25 percent of the population live alone, more than 50 percent are unmarried.
Loneliness is generally associated with heart disease, overweight, and anxiety. Additionally, the stress from loneliness can cause your cells to change on a molecular (分子) level that reduces its abilities to defend your body against diseases. In fact, doctors believe having feelings of loneliness is equivalent to smoking 15 cigarettes per day in regard to its effect on health!
In Britain, the new Minister of Loneliness will help introduce government policies on the problem and fund a charity—an organization for helping people in need, to devote their efforts towards aiding loneliness. There are charities that link lonely seniors to high school students in order to give them a line of communication whenever they feel lonely!
The possibilities for the new Minister of Loneliness are endless. For example, she can provide education services to household businesses so that they can identify lonely customers if they see one. Loneliness fits into the category of being a social problem that must be monitored by the entire community in order to help those in need. Therefore, government involvement in medical services and care for seniors and others is vital for happy seniors.
1.How does the author develop Paragraph 3?
A. By listing some statistics.
B. By giving examples of lonely people．
C. By pointing out similarities and differences.
D. By comparing different cultures in different countries．
2.What does the underlined word “equivalent” in Paragraph 4 probably mean?
A. Relevant． B. Opposite．
C. Similar． D. Superior．
3.What will the Minister of Loneliness do?
A. Do housework for lonely people．
B. Help fund charities to aid lonely people．
C. Communicate with anxious school students．
D. Develop friendships with the elderly．
4.What is the main idea of the text?
A. UK becomes the capital of loneliness．
B. Loneliness affects old people’s life worldwide.
C. Many teenagers suffer from loneliness．
D. UK’s Minister of Loneliness settles loneliness.
高三英语阅读理解中等难度题查看答案及解析
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Educators are seriously concerned about the high rate of dropouts among the doctor of philosophy candidates and the consequent loss of talent to a nation in need of Ph. D. s. Some have placed the dropouts loss as high as 50 percent. The extent of the loss was, however, largely a matter of expert guessing. Last week a well-rounded study was published. It was published. It was based on 22,000 questionnaires sent to former graduate students who were enrolled in 24 universities and it seemed to show many past fears to be groundless.
The dropouts rate was found to be 31 per cent, and in most cases the dropouts, while not completing the Ph. D. requirement, went on to productive work. They are not only doing well financially, but, according to the report, are not far below the income levels of those who went on to complete their doctorates.
Discussing the study last week, Dr. Tucker said the project was initiated ‘because of the concern frequently expressed by graduate faculties and administrators that some of the individuals who dropped out of Ph. D. programs were capable of competing the requirement for the degree. Attrition at the Ph. D. level is also thought to be a waste of precious faculty time and a drain on university resources already being used to capacity. Some people expressed the opinion that the shortage of highly trained specialists and college teachers could be reduced by persuading the dropouts to return to graduate schools to complete the Ph. D.’
“The results of our research” Dr. Tucker concluded, “did not support these opinions.”
Lack of motivation was the principal reason for dropping out.
Most dropouts went as far in their doctoral program as was consistent with their levels of ability or their specialities.
Most dropouts are now engaged in work consistent with their education and motivation.
Nearly 75 per cent of the dropouts said there was no academic reason for their decision, but those who mentioned academic reason cited failure to pass the qualifying examination, uncompleted research and failure to pass language exams. Among the single most important personal reasons identified by dropouts for non-completion of their Ph. D. program, lack of finances was marked by 19 per cent.
As an indication of how well the dropouts were doing, a chart showed 2% in humanities were receiving $ 20,000 and more annually while none of the Ph. D. ‘s with that background reached this figure. The Ph. D. ‘s shone in the $ 7,500 to $ 15,000 bracket with 78% at that level against 50% for the dropouts. This may also be an indication of the fact that top salaries in the academic fields, where Ph. D. ‘s tend to rise to the highest salaries, are still lagging behind other fields.
As to the possibility of getting dropouts back on campus, the outlook was glum. The main condition which would have to prevail for at least 25 % of the dropouts who might consider returning to graduate school would be to guarantee that they would retain their present level of income and in some cases their present job.
1.The author states that many educators feel that
[A] steps should be taken to get the dropouts back to campus.
the fropouts should return to a lower quality school to continue their study.
[C] the Ph. D. holder is generally a better adjusted person than the dropout.
[D] The high dropouts rate is largely attributable to the lack of stimulation on the part of faculty members.
2.Research has shown that
[A] Dropouts are substantially below Ph. D. ‘s in financial attainment.
the incentive factor is a minor one in regard to pursuing Ph. D. studies.
[C] The Ph. D. candidate is likely to change his field of specialization if he drops out.
[D] about one-third of those who start Ph. D. work do not complete the work to earn the degree.
3.Meeting foreign language requirements for the Ph. D.
[A] is the most frequent reason for dropping out.
is more difficult for the science candidate than for the humanities candidate.
[C] is an essential part of many Ph. D. programs.
[D] does not vary in difficulty among universities.
4.After reading the article, one would refrain from concluding that
[A] optimism reigns in regard to getting Ph. D. dropouts to return to their pursuit of the degree.
a Ph. D. dropout, by and large, does not have what it takes to learn the degree.
[C] colleges and universities employ a substantial number of Ph. D. dropouts.
[D] Ph. D. ‘s are not earning what they deserve in nonacademic positions.
5.It can be inferred that the high rate of dropouts lies in
[A] salary for Ph. D. too low.
academic requirement too high.
[C] salary for dropouts too high.
[D] 1000 positions.
Vocabulary
dropout 辍学者，中途退学
well-rounded 全面的
attrition 缩/减员，磨损
drain 枯竭
bracket 一类人，（尤指按收入分类的）阶层
lagging behind other fields 落后于其它领域
glum 阴郁的
高三英语阅读理解中等难度题查看答案及解析
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There are many insects in the world that never do _______ harm to human beings.
A．less
B．the least
C．a little
D．the little
高三英语单项填空中等难度题查看答案及解析
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Birds are the only animals with feathers, although some other animals, such as insects and bats, also have wings．Nearly all birds can fly, and even flightless birds, such as ostriches （鸵鸟）, penguins, evolved from flying ancestors．
Birds are found worldwide in many habitats．They can fly over some of the highest mountains on earth as well as both of the earth’s poles, dive through water to depths of more than 250m, and occupy habitats with the most extreme climates on the planet, including arctic tundra （冻土地带） and the Sahara Desert．Certain kinds of seabirds are commonly seen over the open ocean thousands of kilometers from the nearest land, but all birds must come ashore to raise their young．
Highly developed animals, birds are sensitive and responsive, colorful and graceful, with habits that excite interest and inquiry．People have long been fascinated by birds, in part because birds are found in the same habitats in which humans live．And like people, most species of birds are active during daylight hours．Humans find inspiration in birds’ capacity for flight and in their musical calls．Humans also find birds useful---their flesh and eggs for food, their feathers for warmth, and their companionship．Perhaps a key basis for our friendliness with birds is the similarity of our sensory worlds: Both birds and humans rely more heavily on hearing and color vision than on smell．Birds are useful indicators of the quality of the environment, because the health of bird populations mirrors the health of our environment．The rapid decline in birds populations and the accelerating extinction rates of birds in the world’s forests, grassland, wetlands, and islands are therefore reasons for great concern．
1.Which of the following would be the best title of the text?
A．Animals with Feathers and Wings
Our friendliness with birdsC．An introduction to Birds
D．Bird’s life
2.What does the second paragraph mainly tell us ?
A．Bird’s friendship
Bird’s habitatsC．Bird’s raising D．Bird’s environment
3.Which of following is NOT true according to the passage ?
A．Bird’s flying abilities and musical calls inspire humans greatly．
Birds live in the same surroundings in which humans live．C．Both birds and humans rely more heavily on hearing and smell than on color vision．
D．Bird’s flesh and eggs for food, bird’s feathers for warmth, and their companionship are useful to us．
4.From the text it may imply but NOT state that __________．
A．the environment is being damaged seriously
if you want to raise birds, you should pay attention to environmentC．the environment affects the human beings
D．bird populations decrease rapidly
高三英语阅读理解中等难度题查看答案及解析
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There are many privacy concerns surrounding cybercrime when confidential information is revealed, lawfully or _______.
A.regardless B.instead C.rather D.otherwise
高三英语单项填空困难题查看答案及解析
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Traffic problems are an everyday concern in many cities，including Washington，DC．A growing number of Washingtonians are turning to bicycles to get to and from work．In fact，the number of commuters who use bicycles has doubled in the city since 2007．
Ralph Buehler teaches urban planning at the Virginia Polytechnic Institute and State University，popularly known as Virginia Tech．He has written a book about urban biking，calledCity Cyclin . g．He says there is a reason why urban bike tiding is now becoming more popular．
“Over the last 60 to 70 years，cities in America have adapted to the automobile．”
“Most cities took advantage of the money coming for the interstate highway system，from the federal government， starting in 1956．There was a 90 percent federal match(补贴)so the cities only had to put up 10％．It was very tempting．”
In the years after World War Two，many Americans moved to suburban communities，just outside major cities．They decided to travel great distances to and from work in exchange for a home in the suburbs．Their cars became a symbol of freedom．
But today，many people believe they can save money by living in the city．
Greg Billing is with the Washington Area Bicyclist Association．“When a person makes a change from using a car to using a bike，he／she is saving anywhere between 8 or $9，000 a year．”
Ralph Buehler says governments save money when people use bicycles．“Building bicycling facilities is much cheaper than building and maintaining road facilities or public transport．”
Washington，DC has also taken steps to protect bike riders．It approved a safe passing law and created areas on the road between cars and bikes．
The United States Census Bureau says 4％of the city’s workers ride to work by bike．The only city on the East Coast with more bike commuters is New York．
1.What does the writer mainly talk about in this passage?
A. Bicycling to work in Washington, DC grows in popularity
B. Bikes lead to new problems in Washington，DC
C. Washington，DC has taken steps to protect bike riders
D. People in Washington，DC prefers cars to bicycles
2.What can we know from Ralph Buehler’s statement?
A. A lot has been invested to build bicycling facilities in cities．
B. The federal government supported building public transport．
C. Cities didn’t use the money from the government wisely．
D. Urban biking has been popular in the last 60 to 70 years．
3.In the years after World War Two，many Americans prefer to____．
A. go to and from work by bike
B. live out of the major cities
C. travel long distances a lot
D. rent houses rather than buy ones
4.What do Ralph Buehler and Greg Billing agree with?
A. Public transport develop too rapidly recent years．
B. Government should build more bicycle facilities．
C. The cost of living in cities is lower than in the country．
D. More people using bicycles can save money．
高三英语阅读理解中等难度题查看答案及解析
Our friendliness with birds