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阅读题：A growing world population and the discoveries of science may alter this pattern of distribution in the future

Questions 31 to 35 are based on the following passage.

A growing world population and the discoveries of science may alter this pattern of distribution in the future. As men slowly learn to master diseases, control floods, prevent famines, and stop wars, fewer people die every year; and in consequence the population of the world is steadily increasing. In 1925 there were about 2,000 million people in the world; by the end of the century there may well be over 4,000 million.

When numbers rise the extra mouths must be fed. New lands must be brought under cultivation, or land already farmed made to yield larger crops. In some areas the accessible land is so intensively cultivated that it will be difficult to make it provide more food. In some areas the population is so dense that the land is parceled out in units too tiny to allow for much improvement in farming methods. Were a large part of this farming population drawn off into industrial occupations, the land might be farmed much more productively by modern methods.

There is now a race for science, technology, and industry to keep the output of food rising faster than the number of people to be fed. New strains of crops are being developed which will thrive in unfavorable climates: there are now farms beyond the Arctic Circle in Siberia and North America; irrigation and dry-farming methods bring arid lands under the plough, dams hold back the waters of great rivers to ensure water for the fields in all seasons and to provide electric power for new industries; industrial chemistry provides fertilizers to suit particular soils; aeroplanes spray crops to destroy locusts and many plant diseases. Every year some new means is devised to increase or to protect the food of the world.

31. The author says that the world population is growing because _____.

A) there are many rich valleys and fertile plains

B) the pattern of distribution is being altered

C) people are living longer

D) new land is being brought under cultivation

32. The author says that in densely populated areas the land might be more productively farmed if _____.

A) the plots were subdivided

B) a large part of the people moved to a different part of the country

C) industrial methods were used in farming

D) the units of land were made much larger

33. We are told that there are now farms beyond the Arctic Circle. This has been made possible by _____.

A) producing new strains of crops

B) irrigation and dry-farming methods

C) providing fertilizers

D) destroying pests and disease

34. Which of these words is nearest in meaning to the word "strains"？

A) types B) sizes

C) seeds D) harvests

35. The author's main purpose is to _____.

A) argue for a belief B) describe a phenomenon

C) entertain D) propose a conclusion

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更多“阅读题：A growing world population…”相关的问题
第1题
阅读理解：Across the rich world, welleducated people increasingly work longer than the lessskilled

Questions 1 to 5 are based on the following passage.

Across the rich world, well-educated people increasingly work longer than the less-skilled. Some 65% of American men aged 62-74 with a professional degree are in the workforce, compared with 32% of men with only a high-school certificate. This gap is part of a deepening divide between the well-educatedwell-off and the unskilled poor. Rapid technological advance has raised the incomes of the highly skilled while squeezing those of the unskilled. The consequences, for individuals and society, are profound.

The world is facing an astonishing rise in the of old people, and they will live longer than ever before. Over the next 20 years the global population of those aged 65 or more will almost double, from 600 million to 1.1 billion. The experience of the 20th century, when greater longevity(长寿)translated into more years in retirement rather than more years at work, has persuaded many observers that this shift will lead to slower economic growth, while the swelling ranks of pensioners will create government budget problems.

But the notion of a sharp division between the working young and the idle old misses a new trend, the growing gap between the skilled and the unskilled. Employment rates are failing among younger unskilled people, whereas older skilled folk are working longer.The divide is most extreme in America, where well-educated baby-boomers(二战后生育高峰期出生的美国人)areputting off retirement while many less-skilled younger people have abandoned policies that used Xto retire early. Rising life expectancy(预期生命),combined with the replace- Xpension plans with less generous defined-contribution ones, means that even the better-off must work longer to have a comfortable retirement. But the changing nature of work also plays a big role. Pay has risen sharply for the highly educated, and those people continue to reap rich rewards into old age because these days the educated elderly are more productive that the preceding generation. Technological charge may well reinforce that shift; the skills that complement computers, from management knowhow to creativity, do not necessarily decline with age.

1.What is happening in the workforce in rich countries？

A.Younger people are replacing the elderly.

B.Well-educated people tend to work longer.

C.Unemployment rates are rising year after year.

D.People with no collage degree do not easily find work.

2.What has helped deepen the divide between the well-off and the poor？

A.Longer life expectancies.

B.A rapid technological advance.

C.Profound changes in the workforce.

D.A growing number of the well-educated.

3.What do many observers predict in view of the experience of the experience of the 20th century？

A.Economic growth will slow down.

B.Government budgets will increase.

C.More people will try to pursue higher education.

D.There will be more competition in the job market.

4.What is the result of policy changes in European countries？

A.Unskilled workers may choose to retire early.

B.Morepeople have to receive in-service training.

C.Even wealthy people must work longer to live comfortably in retirement.

D.Peoplemay be able to enjoy generous defined-benefits from pension plans.

5.What is characteristic of work in the 21st century？

A.Computers will do more complicated work.

B.More will be the educated young.

C.Most jobs to be done will be creative ones.

D.Skills are highly valued regardless of age.

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第2题
阅读理解：Some of the world's most sign significant problems hit headlines. One example comes from agriculture

Questions 1 to 5 are based on the following passage.

Some of the world's most sign significant problems hit headlines. One example comes from agriculture. Food riots and hunger make news. But the trend lying behind these matters is rarely talked about. This is the decline in the growth in yields of some of the world's major crops. A new study by the University of Minnesota and McGill University in Montreal looks at where, and how far, this decline is occurring.

The authors take a vast number of data points for the four most important crops: rice, wheat, corn and soyabeans(大豆). They find that on between 24% and 39% of all harvested areas, the improvement in yields that took place before the 1980s slowed down in the 1990s and 2000s.

There are two worrying features of the slowdown. One is that it has been particularly sharp in the world's most populous(人口多的)countries, India and China. Their ability to feed themselves has been an important source of relative stability both within the countries and on world food markets. That self-sufficiency cannot be taken for granted if yields continue to slow down or reverse.

Second,yield growth has been lower in wheat and rice than in corn and soyabeans. This is problematic because wheat and rice are more important as foods, accounting for around half of all calories consumed. Corn and soyabeans are more important as feed grains. The authors note that "we have preferentially focused our crop improvement efforts on feeding animals and cars rather than on crops that feed people and are the basis of food security in much of the world."

The report qualifies the more optimistic findings of another new paper which suggests that the world will not have to dig up a lot more land for farming in order to feed 9 billion people in 2050, as the Food and Agriculture Organisation has argued.

Instead, it says, thanks to slowing population growth, land currently ploughed up for crops might be able to revert(回返)to forest or wilderness. This could happen. The trouble is that the forecast assumes continued improvements in yields, which may not actually happen.

1.What does the author try to draw attention to？

A.Food riots and hunger in the world.

B.The decline of the grain yield growth.

C.News headlines in the leading media.

D.The food supply in populous countries.

2.Why does the author mention India and China in particular？

A.Their self-sufficiency is vital to the stability of world food markets.

B.Their food yields have begun to decrease sharply in recent years.

C.Their big populations are causing worldwide concerns.

D.Their food self-sufficiency has been taken for granted.

3.What does the new study by the two universities say about recent crop improvement efforts？

A.They fail to produce the same remarkable results as before the 1980s.

B.They contribute a lot to the improvement of human food production.

C.They play a major role in guaranteeing the food security of the world.

D.they focus more on the increase of animal feed than human food grains.

4.What does the Food and Agriculture Organisation say about world food production in the coming decades？

A.The growing population will greatly increase the pressure on world food supplies.

B.The optimistic prediction about food production should be viewed with caution.

C.The slowdown of the growth in yields of major food crops will be reversed.

D.The world will be able to feed its population without increasing farmland.

5.How does the author view the argument of the Food and Agriculture Organisation？

A.It is built on the findings of a new study.

B.It is based on a doubtful assumption.

C.It is backed by strong evidence.

D.It is open to further discussion.

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第3题
Population tends to grow at an exponential（指数的)rate. This means that they progressively

Population tends to grow at an exponential(指数的)rate. This means that they progressively double. As an example of this type of growth rate, take one penny and double every day for one month. After the first week, you would have only 64 cents, but after the fourth week you would have over a million dollars.

This helps explain why the population has come on "all of a sudden". It took from the beginning of human life to the year 1830 for the population of the earth to reach one billion. That repents(缓慢进行)a time span of at least two million years. Then it took from 1830 to 1930 for world population to reach 2 billion. The next billion was added by 1960, only thirty years, and in 1975 world population reached 4 billion, which is another billion people in only fifteen years.

World population is increasing at a rate of 9000 per hour, 220000 per day, and 80 million per year. This is not only due to higher birth rate, but to lower death rate as well. The number of births has not declined at the same rate as the number of deaths.

Some countries, such as Columbia, Thailand, Morocco, Costa Rica, and the Philippines, are doubling their population about every twenty-one years, with a growth rate of 3.3% a year or more. The United States is doubling its population about very eighty-seven years, with a rate of 0.8% per year. Every time a population doubles, the country involved needs twice as much of everything, including hospitals, schools, resources, food and medicines to care for its people. It is easy to see that this is very difficult to achieve for the more rapidly growing countries.

This passage chiefly discusses______.

A．the growth of world population

B．one type of the exponential rate

C．the population problem of more rapidly growing countries

D．the possible ways of dealing with the rapid population growth

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第4题
阅读题：Americans have always been ambivalent in their attitudes toward education. On the one hand

Questions 26 to 30 are based on the following passage.

Americans have always been ambivalent in their attitudes toward education. On the one hand, free and universal public education was seen as necessary in a democracy, for how else would citizens learn how to govern themselves in a responsible way？ On the other hand, America was always a country that offered financial opportunities for which education was not needed: on the road from rags to riches, schooling-beyond the basics of reading, writing, and arithmetic-was an unnecessary detour.

Even today, it is still possible for people to achieve financial success without much education, but the number of situations in which this is possible is decreasing. In today's more complex world, the opportunities for financial success is closely related to the need for education, especially higher education.

Our society is rapidly becoming one whose chief product is information, and dealing with this information requires more and more specialized education. In other words, we grow up learning more and more about fewer and fewer subjects.

In the future, this trend is likely to continue. Tomorrow's world will be even more complex than today's world, and, to manage this complexity, even more specialized education will be needed.

26. The topic treated in this passage is _____.

A) education in general

B) Americans' attitudes

C) higher education

D) American education

27. Americans' attitudes toward education have always been _____.

A) certain B) contradictory

C) ambitious D) unclear

28. Today, financial success is closely related to the need for _____.

A) higher education B) public education

C) responsible citizens D) learning the basics

29. It can be inferred from the third paragraph that _____.

A) information is our only product

B) education in the future will be specialized

C) we are entering an age of information

D) we are living in an age of information

30. Which of the following is the best title for the passage？

A) The History of American Education.

B) The Need for Specialized Education.

C) The Future of the American Educational System.

D) Attitudes toward American Education.

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第5题
About a century ago more people would not have appreciated the study of a foreign language
as they do today. Gone are those days when patriotism towards one's own language was a major obstacle to learning foreign languages, a time when most nations were trying to throw their alien rulers out of their countries in their freedom struggles. Gone are those days when people were proud of their mother or father tongues and considered that their languages alone will suffice the need to survive. Language skills today have become as important as other business and career skills like IT, vocational or professional skills. Thus learning a foreign language today has become essential for an individual whether it is for careers, growing a business, or even to make an impression.

All that one needs to possess these days is a drive to learn a foreign language and there are all kinds of institutes and courses that teach various foreign languages like French, German, Spanish, and Japanese. Today's world economy has bridged the barriers of race, sex, color and religion and the world has become a smaller place. Today's businesses also demand language skills to expand and grow in other countries. Tens and hundreds of businesses world wide are expanding and growing their businesses by promoting them in countries other than their countries of origin. The tremendous growth of the Internet has further increased the demand for language skills. In Canada an official rule also says that all commercial establishments must have their websites created both in English and French, the official languages of the country.

Language can also ease race and border barriers. You are more welcome in an alien nation if you know the language of the people there and can converse in their tongue. People in these countries immediately respect you and think you care about their culture as much as they do because in any culture language is the key identity.

One of the reasons for not studying a foreign language in the past is______.

A．it was too difficult

B．it was not allowed

C．it was taught by foreign rulers

D．it was seen as disloyalty

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第6题
Manpower Inc., with 560,000 workers, is the world's largest temporary employment agency. E
very morning, its people 【B1】 into the offices and factories of America, seeking a day's work for a day's pay. One day at a time, 【B2】 industrial giants like General Motors and IBM struggle to survive 【B3】 reducing the number of employees, Manpower, based in Milwaukee, Wisconsin, is booming.

【B4】 its economy continues to recover, the U.S. is increasingly becoming a nation of part-timers and temporary workers. This " 【B5】 " work force is the most important 【B6】 in American business today, and it is 【B7】 changing the relationship between people and their jobs. The phenomenon provides a way for companies to remain globally competitive 【B8】 avoiding market cycles and the growing burdens 【B9】 by employment rules, healthcare costs and pension plans. For workers it can mean an end to the security, benefits and sense of 【B10】 that came from being a loyal employee.

【B1】

A．swarm

B．stride

C．separate

D．slip

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第7题
Questions 下列各 are based on the following passage. A day after the mobile phone celebra
ted its 40th birthday, Facebook has produced something that it hopes will make certain of the devices even more useful. On April 4th the giant social network 36 Home, new software that is designed to give it more prominence on mobile phones powered by Android, an operating system developed by Google. This matters because more and more folk are now accessing social networks from mobile devices rather than from desktop computers and because mobile advertising 37 are growing fast, albeit from a low base. Without a robust mobile 38 , Facebook could see some of its users siphoned off by rivals born in the mobile era. And it could miss out on a 39 massive source of new revenue. There had been 40 that Facebook was working on a phone of its own, or at least on a mobile operating system to rival Android or Apples IOS. But dabbling in hardware at this stage of its development would be a huge risk for Facebook and developing a rival operating system would risk 41 Apple and Google, whose mobile platforms have helped power its advertising growth, eMarketer, a research firm, 42 Facebook is on track to win 11% of the $13.6 billion likely to be spent around the world on mobile ads this year. Home, which is a group of Facebook apps, avoids both pitfalls. Among other things, it 43 a phones home screen (and lock screen) to Facebooks Newsfeed, allowing people to get updates on what their friends are doing without having to launch a 44 app each time they want news. A phone using Home will also notify you when your friends are doing something new, as well as alerting you to new data from other apps. Another feature is a tool called "Chat Heads" that 45 Facebooks message system to a phones regular SMS message offering. This means messages pop up on the home screen along with the senders profile picture, which is enclosed in a small circle.请回答（36）题__________.

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第8题
Sports fans all over the world recognize the name Michael Jordan. From Taiwan to Tennessee
. kids wear clothes with his picture on them. Jerseys(球服)with his number 23 on the front, jackets with the Bulls on the back, and Air Jordan sports shoes all reflect the fame of this superstar. Michael Jordan has become the most famous attraction of the world’s favorite spectator sport.

Michael Jordan was born in 1963 in Brooklyn, New York. Growing up Michael did not look like a future superstar. He was very shy and didn’t like to talk to other people about himself. He was also very short. He showed little promise of having a future career in basketball. When he tried out for the freshman team in high school, Michael didn’t make it. The next year, however, he grew tall enough to join the team.

Michael’s road to fame began at the University of North Carolina. He brought an acrobatic styleto the game that few had seen before. Michael used his quickness and strength to reach the basket again and again. He became famous for his powerful slam dunk(灌蓝). Basketball fans from all over the world began to take notice. One reporter wrote that when Michael went up to dunk the basketball , it looked like he could fly. He was given the nickname "Air Jordan".

Kids all over the world wear the things related to Jordan except ______.

A．shoes

B．jerseys

C．jackets

D．socks

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第9题
In such a changing, complex society formerly simple solutions to informational needs becom
e complicated. Many of life's problems which were solved by asking family members, friends or colleagues are beyond the capability of the extended family to resolve. Where to turn for expert information and how to determine which expert advice to accept are questions facing many people today.

In addition to this, there is the growing mobility of people since World War II. As families move away from their stable community, their friends of many years, their extended family relationships, the informal flow of information is cut off, and with it the confidence that information will be available when needed and will be trustworthy and reliable has lost. The almost unconscious flow of information about the simplest aspects of living can be cut off. Thus, things once learned subconsciously through the casual communications of the extended family must be consciously learned.

Adding to social changes today is an enormous stockpile of information, The individual now has more information available than any generation, and the task of finding that one piece of information relevant to his or her specific problem is complicated, time-consuming and sometimes even overwhelming.

Coupled with the growing quantity of information is the development of technologies which enable the storage and delivery of more information with greater speed to more locations than has ever been possible before. Computer technology makes it possible to store vast amounts of data in machine-readable files, and to program computers to locate specific information, Telecommunications developments enable the sending of messages via television, radio, and very shortly, electronic mail to bombard people with multitudes of messages. Satellites have extended the power of communications to report events at the instant of occurrence. Expertise can be shared worldwide through teleconferencing, and problems in dispute can be settled without the participants leaving their homes and/or jobs to travel to a distant conference site. Technology has facilitated the sharing of information and the storage and delivery of information, thus making more information available to more people.

In this world of change and complexity, the need for information is of greatest importance. Those people who have accurate, reliable up-to-date information to solve the day-to-day problems, the critical problems of their business, social and family life, will survive and succeed. "Knowledge is power" may well be the truest saying and access to information may be the most critical requirement of all people.

The word "it" (Line 3, Para. 2) most probably refers to ______.

A．the lack of stable communities

B．the breakdown of informal information channels

C．the increased mobility of families

D．the growing number of people moving from place to place

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第10题
Thomas Malthus published his Essay on the Principle of Populationalmost 200 years ago. Eve

Thomas Malthus published his Essay on the Principle of Population

almost 200 years ago. Ever since then, forecasters have being warning 【M1】 ______

that worldwide famine was just around the next comer. The fast-growing

population's demand for food, they warned, would soon exceed their 【M2】 ______

supply, leading to widespread food shortages and starvation.

But in reality, the world's total grain harvest has risen steadily over the

years. Except for relative isolated trouble spots like present-day Somalia, 【M3】 ______

and occasional years of good harvests, the world's food crisis has remained 【M4】 ______

just around the comer. Most experts believe this can continue even as ff 【M5】 ______

the population doubles by the mid-21st century, although feeding l0 billion

people will not be easy for politics, economic and environmental reasons. 【M6】 ______

Optimists point to concrete examples of continued improvements in yield.

In Africa, by instance, improved seeds, more fertilizers and advanced 【M7】 ______

growing practices have more than double com and wheat yields in an 【M8】 ______

experiment. Elsewhere, rice experts in the Philippines are producing

a plant with few stems and more seeds. There is no guarantee that plant 【M9】 ______

breeders can continue to develop new, higher-yielding crop, but most 【M10】______

researchers see their success to date as reason for hope.

【M1】

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