We can begin our discussion of “population as a global issue” with what most person mean when they discuss “ the population problem”: too many people on earth and a too rapid increase in the number added each year. The facts are not in dispute. It was quite right to employ a similar matter that linked demographic(人口統(tǒng)計(jì)學(xué))growth to “ a long, thin power fuse that burns steadily from time to time until it finally reaches the limit, and explodes”.
To understand the current situation, which is characterized by rapid increases in population, it is necessary to understand the history of population trends. Rapid growth is a comparatively recent phenomenon. Looking back at the 8,000 years of demographic history. We find that population have been really stable or growing very slightly for most of human history. For most of our ancestors, life was hard, often nasty, and very short. For most of human history, it was seldom the case that one in ten persons would live past forty, where infancy and childhood were especially risky periods. Often, societies were in clear danger of extinction because death rates could exceed their birth rates. Thus, the population problem throughout most of history was how to prevent extinction of the human race.
This pattern is important to know. Not only does it put the current problems of demographic growth into a historical perspective, but it suggests that the cause of rapid increase in population in recent years is not a sudden enthusiasm for more children, but an improvement in the conditions that traditionally have caused high rate of death.
Demographic history can be divided into two major periods: a time of long, slow growth which extended from about 8000B.C. till approximately 1650 A.D. And a period of rapid growth since 1650. In the first period of some 9,600 years, the population increased form some 8 million to 500 million in 1650. Between 1650 and the present, the population has increased from 500 million to more than 4 billion. And it is estimated that by the year 2020 there will be 8 billion people throughout the world. One way to appreciate this dramatic difference in such abstract numbers is to reduce the time frame to something that is more manageable. Between 8000B.C. and 1650, an average of only 50,000 persons was being added annually to the world’s population each year. At present, this number is added very six hours. The increase is about 80,000,000 persons annually.
小題1:According to the passage, “population as a global issue” ____.
A.is quite unlike the population problem and thus doesn’t need our concern
B.focuses on tracking down the reason of rapid population growth
C.deals with the same problem aroused by the population problem
D.will manage the population growth problem from global perspectives
小題2:It can be inferred from the example of a power fuse that _____.
A.too much population will one day lead to the doom of human beings
B.the trend of population growth will keep unsteady until the destruction of Earth
C.demographic growth will follow a certain pattern of ups and downs
D.it is likely in the near future that population will reduce gradually
小題3:What leads to a stable growth of population for most of human history?
A.Species competitionB.Low fertilityC.Tribal fightsD.High rate of death
小題4:The reason for a rapid growth of population lies in the fact that ______.
A.people are permitted to have more children
B.people can live better than before
C.newborn babies die less than before
D.we have found the secret of longevity
小題5:How many people are born every six hours at present, according to the author?
A.Eighty million.B.Eight thousand
C.Fifty thousandD.Five million

小題1:C
小題2:A
小題3:D
小題4:B
小題5:C

試題分析:文章大意:文章討論了現(xiàn)在人口增長(zhǎng)過(guò)快,并解釋了為什么古代人口少有增長(zhǎng),而近些年人口劇增。
小題1:C細(xì)節(jié)理解題。根據(jù)第一段首句We can begin our discussion of “population as a global issue” with what most person mean when they discuss “ the population problem”可知,這兩個(gè)問(wèn)題是一樣的。故C正確。
小題2:A推理判斷題。根據(jù)文章第一段最后一句It was quite right to employ a similar matter that linked demographic(人口統(tǒng)計(jì)學(xué))growth to “ a long, thin power fuse that burns steadily from time to time until it finally reaches the limit, and explodes”.作者提到把人口增長(zhǎng)比作細(xì)長(zhǎng)導(dǎo)火線的比喻。故A正確。
小題3:D細(xì)節(jié)理解題。根據(jù)第四段的最后一句but an improvement in the conditions that traditionally have caused high rate of death.可知最主要原因是高死亡率。故D正確。
小題4:B細(xì)節(jié)理解題。根據(jù)文章第三段第二句Not only does it put the current problems of demographic growth into a historical perspective, but it suggests that the cause of rapid increase in population in recent years is not a sudden enthusiasm for more children, but an improvement in the conditions that traditionally have caused high rate of death.表明現(xiàn)在人口增長(zhǎng)的原因是導(dǎo)致高死亡率得到很大的改善,而不是人們突然想要更多的小孩。故B正確。
小題5:C細(xì)節(jié)理解題。根據(jù)最后一段Between 8000B.C. and 1650, an average of only 50,000 persons was being added annually to the world’s population each year. At present, this number is added very six hours.得知正確選項(xiàng)為C。故C正確。
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

Pop stars today enjoy what once only belonged to the royalty(皇室).Wherever they go,people turn out in their thousands to greet them.The crowds go wild trying to catch a brief glimpse of their smiling,colorfully dressed idols.The stars are transported in their chauffeur driven Rolls Royces,private helicopters or executive aeroplanes.They are surrounded by a permanent entourage(隨從)of managers,press agents and bodyguards.Photographs of them appear regularly in the press and all their comings and goings are reported,for,like royalty,pop stars are news.If they enjoy many of the privileges of royalty,they certainly share many of the inconveniences as well.It is dangerous for them to make unscheduled appearances in public.They must be constantly shielded from the adoring crowds who idolize them.They are no longer private individuals,but public property.The financial rewards they receive for this sacrifice cannot be calculated,for their rates of pay are great.

And why not?Society has always rewarded its top entertainers lavishly.The great days of Hollywood have become legendary:famous stars enjoyed fame,wealth and adulation(奉承)on an all time scale.By today's standards,the excesses of Hollywood do not seem quite so spectacular.A single gramopphone record nowadays may earn much more in royalties than the films of the past ever did.The competition for the title“Top of the Pops”is fierce,but the rewards are truly huge.
It is only right that the stars should be paid in this way.Don't the top men in industry earn enormous salaries for the service they perform to their companies and their countries?Pop stars earn vast sums in foreign currency—often more than large industrial companies—and the taxman can only be grateful for their massive annual contributions to the exchequer(國(guó)庫(kù)).So who would begrudge them their rewards?
It's all very well for people in boring jobs to complain about the successes and rewards of others.People who make envious remarks should remember that the most famous stars represent only the tip of the iceberg.For every famous star,there are hundreds of others struggling to earn a living.A man working in a steady job and looking forward to a pension at the end of it has no right to expect very high rewards.He has chosen security and peace of mind,so there will always be a limit to what he can earn.But a map who attempts to become a star is taking enormous risks.He knows at the outset that only a handful of competitors ever get to the very top.He knows that years of concentrated effort may be rewarded with complete failure.But he knows,too,that the rewards for success are very high indeed:they are the payback for the huge risks involved and once he makes it,he will certainly earn them.That's the essence of private enterprise.
小題1:The author develops the passage mainly by ________.
A.comparing different ideas
B.giving explanations
C.inferring
D.listing typical examples
小題2:The underlined word “begrudge” in the third pararaph is closest in meaning to ________.
A.be jealous ofB.be satisfied with
C.be anxious aboutD.be crazy about
小題3:According to the passage,which of the following can match the view of the author?
A.He who laughs last laughs best.
B.If you venture nothing,you will gain nothing.
C.He who makes no mistakes makes nothing.
D.Success belongs to the persevering.
小題4:Which of the following is true according to the passage?
A.People are blind in idolizing stars.
B.There is fierce competition in becoming pop stars.
C.The government taxes pop stars very little.
D.Pop stars' life is more luxurious than that of royalty.

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

Stop Spam!
When I first got an e-mail account ten years ago, I received communications only from family, friends, and colleagues. Now it seems that every time I check my e-mail, I have an endless series of advertisements and other correspondence that do not interest me at all. If we want e-mail to continue to be useful, we need specific laws that make spamming (發(fā)送垃圾郵件) a crime.
If lawmakers do not do something soon to prohibit spam, the problem will certainly get much worse. Computer programs allow spammers to send hundreds of millions of e-mails almost instantly. As more and more advertisers turn to spam to sell their products, individual (個(gè)人的) e-mail boxes are often flooded with spam e-mails. Would people continue to use e-mail if they had to deal with an annoying amount of spam each time?
This problem is troubling for individuals and companies as well. Many spam e-mails contain computer viruses that can shut down the entire network of a company. Companies rely on e-mail for their employees to communicate with each other. Spam frequently causes failures in their local communications networks, and their employees are thus unable to communicate effectively. Such a situation results in a loss of productivity and requires companies to repeatedly repair their networks. These computer problems raise production costs of companies, which are, in the end, passes on to the consumer.
For these reasons, I believe that lawmakers need to legislate (立法) against spam. Spammers should be fined, and perhaps sent to prison if they continue to disturb people. E-mail is a tool which helps people all over the world to communicate conveniently, but spam is destroying this convenience.
小題1:What does the underlined word “correspondence” in the Paragraph 1 probably mean?                                                       
A.messagesB.ideasC.connectionsD.programs
小題2:According to the text, what is the major cause of the flooding spam?   
A.Companies rely on e-mail for communications.
B.More people in the world communicate by e-mails.
C.Many computer viruses contain spam e-mail.
D.More advertisers begin to promote sales through spam.
小題3:According to Paragraph 3, who is the final victim of spam?             
A.The businessB.The advertiser.
C.The employeeD.The consumer.
小題4:What is the purpose of the text?
A.To inform.B.To educate.C.To persuade.D.To instruct.

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

We are not who we think we are.
The American self-image is spread with the golden glow of opportunity. We think of the United States as a land of unlimited possibility, not so much a classless society but as a place where class is mutable—a place where brains, energy and ambition are what counts, not the circumstances of one's birth.
The Economic Mobility Project, an ambitious research led by Pew Charitable Trusts, looked at the economic fortunes of a large group of families over time, comparing the income of parents in the late 1960s with the income of their children in the late 1990s and early 2000s. Here is the finding: "The 'rags to riches' story is much more common in Hollywood than on Main Street. Only 6 percent of children born to parents with family income at the very bottom move to the top.
That is right, just 6 percent of children born to parents who ranked in the bottom of the study sample, in terms of income, were able to bootstrap their way into the top . Meanwhile, an incredible 42 percent of children born into that lowest are still stuck at the bottom, having been unable to climb a single rung of the income ladder.
It is noted that even in Britain---a nation we think of as burdened with a hidebound class system-children who are born poor have a better chance of moving up. When the studies were released, most reporters focused on the finding that African-Americans born to middle-class or upper middle-class families are earning slightly less, in inflation-adjusted dollars, than did their parents.
One of the studies indicates, in fact, that most of the financial gains white families have made in the past three decades can be attributed to the entry of white women into the labor force. This is much less true for African-Americans.
The picture that emerges from all the quintiles, correlations and percentages is of a nation in which, overall, "the current generation of adults is better off than the previous one", as one of the studies notes.
The median income of the families in the sample group was $55,600 in the late 1960s; their children's median family income was measured at $71,900. However, this rising tide has not lifted all boats equally. The rich have seen far greater income gains than have the poor.
Even more troubling is that our nation of America as the land of opportunity gets little support from the data. Americans move fairly easily up and down the middle rungs of the ladder, but there is "stickiness at the ends" —four out of ten children who are born poor will remain poor, and four out often who are born rich will stay rich.
小題1:What did the Economic Mobility Project find in its research?
A.Children from low-income families are unable to bootstrap their way to the top.
B.Hollywood actors and actresses are upwardly mobile from rags to riches.
C.The rags to riches story is more fiction than reality.
D.The rags to riches story is only true for a small minority of whites.
小題2:It can be inferred from the undertone of the writer that America, as a classless society, should ________.
A.perfect its self-image as a land of opportunity
B.have a higher level of upward mobility than Britain
C.enable African-Americans to have exclusive access to well-paid employment
D.encourage the current generation to work as hard as the previous generation
小題3:Which of the following statements is TRUE according to the passage?
A.The US is a land where brains, energy and ambition are what counts.
B.Inequality persists between whites and blacks in financial gains.
C.Middle-class families earn slightly less with inflation considered.
D.Children in lowest-income families manage to climb a single rung of the ladder.
小題4:What might be the best title for this passage?
A.Social Upward Mobility.
B.Incredible Income Gains.
C.Inequality in Wealth.
D.America Not Land of Opportunity.

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

We can make mistakes at any age. Some mistakes we make are about money. But most mistakes are about people.“Did Jerry really care when I broke up with Helen?” When I got that great job, did Jim really feel good about it, as a friend? Or did he envy(嫉妒)my luck?”“And Paul-why didn’t he pick up that he was friendly just because I had a car?”When we look back, doubts like these can make us feel bad. But when we look back, it’s too late.
Why do we go wrong about our friends or our enemies? Sometimes what people say hides their real meaning. And if we don’t really listen we miss the feeling behind the words. Suppose someone tells you, “You’re a lucky dog.”that’s being friendly. But“l(fā)ucky dog”?There’s a bit of envy in those words. Maybe he doesn’t see it himself. But bringing in the “dog” bit puts you down a little. What he may be saying is that he doesn’t think you deserve your luck.
“Just think of all the things you have to be thankful for ”is another noise that says one thing and means another . It could mean that the speaker is trying to get you to see your problem as part of your life as a whole. But is he? Wrapped up(包藏) in this phrase is the thought that your problem isn’t important. It’s telling you to think of all the starving people in the world when you haven’t got a date for Saturday night.
How can you tell the real meaning behind someone’s got a date for Saturday night? Good look at the person talking. Do his words fit the way he looks? Does what he says agree with the tone of voice? His posture(姿態(tài))?The look in his eyes? Stop and think. The minute you spend thinking about the real meaning of what people to you may save another mistake.
小題1:This passage is mainly about_____.
A.how to interpret(understand) what people say
B.what to do when you listen to others talking
C.how to avoid mistakes when you communicate with people
D.why we go wrong with people sometimes
小題2:According to the author, the reason why we go wrong about our friends is that_______.
A.we fail to listen carefully when they talk
B.we tend to(傾向)doubt what our friends say
C.people usually state one thing but means another
D.people tend to be annoyed when we check what they say
小題3:In the sentence “Maybe he doesn’t see it himself.”In the second paragraph, the pronoun “it”refers to____.
A.being friendlyB.a(chǎn) bit of envyC.lucky dogD.your luck
小題4:When we listen to a person talking , the most important thing for us to do is _______.
A.notice the way the person is talking
B.take a good look at the person talking
C.mind his tone, his posture and the look in his eyes
D.examine the real meaning of what he says based on his manner, his tone and his posture

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

People are being lured(引誘) onto Facebook with the promise of a fun, free service, and don’t realize that they’re paying for it by giving up loads of personal information. Facebook then attempts to make money by selling their data(資料) to advertisers that want to send targeted (目標(biāo)的)messages.
Most Facebook users don’t realize this is happening. Even if they know what the company is up to, they still have no idea what they’re paying for Facebook, because people don’t really know what their personal details are worth.
The biggest problem, however, is that the company keeps changing the rules. Early on, you could keep everything private. That was the great thing about Facebook—you could create your own little private network. Last year, the company changed its privacy rules so that many things—your city, your photo, your friends’ names—were set, by default(默認(rèn)), to be shared with everyone on the Internet.
According to Facebook’s vice president Elliot Schrage, the company is simply making changes to improve its service, and if people don’t share information, they have a “l(fā)ess satisfying experience.”
Some critics think this is more about Facebook looking to make more money. Its original business model, which involved selling ads and putting them at the side of the page, totally failed. Who wants to look at ads when they’re online connecting with their friends?
The privacy issue has already landed Facebook in hot water in Washington. In April, Senator Charles Schumer called on Facebook to change its privacy policy. He also urged the Commission to set guidelines for social-networking sites. “I think the senators rightly communicated that we had not been clear about what the new products were and how people could choose to use them or not to use them,” Schrage admits.
I suspect that whatever Facebook has done so far to invade(侵犯)our privacy, it’s only the beginning,which is why I’m considering deactivating(撤銷) my account(賬號(hào)). Facebook is a handy site, but I’m upset by the idea that my information is in the hands of people I don’t trust. That is too high a price to pay.
小題1:What do we learn about Facebook from the first paragraph?
A.It is a website that sends messages to targeted users.
B.It makes money by putting on advertisements.
C.It earns money by selling its user’s personal data
D.It provides a lot of information to its users
小題2:What does the author say about most Facebook users?
A.They don’t know their personal data enriches Facebook
B.They are unwilling to give up their personal information
C.They don’t identify themselves when using website
D.They care very little about their personal information
小題3:Why does Facebook make changes to its rules according to Elliot Schrage?
A.To help its users make more friends
B.To obey the Federal guidelines
C.To make money by attracting more users
D.To offer better service to its users
小題4:What does Senator Charles Schumer argue for?
A.Setting guidelines for advertising on websites
B.Setting rules for social-networking sites
C.Stopping sharing user’s personal information
D.Removing ads from all social-networking sites
小題5:Why does the author plan to stop using his Facebook account?
A.He is dissatisfied with its service.
B.He finds many of its users untrustworthy.
C.He doesn’t want his personal data badly used.
D.He is upset by its frequent rule changes.

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

Travel Unaccompanied
Now many young people are traveling around the world on their own, not because they have no one to travel with, but because they prefer to go alone.
Kristina Wegscheider from California first traveled alone when she was at college and believes that it is something everyone should do at least once in their life. “It opens up your mind to new things and pushes you out of your comfort zone.” Wegscheider has visited 46 countries covering all seven continents.
In foreign countries, with no one to help you read a map, look after you if you get ill, or lend you money if your wallet is stolen. It is challenging. This is what drives young people to travel alone.It is seen as character building and a chance to prove that they can make it on their own.
Chris Richardson decided to leave his sales job in Australia to go traveling last year.He set up a website, The Aussie Nomad, to document his adventures. He said he wished he had traveled alone earlier. “The people you meet, the places you visit, or the things you do, everything is up to you and it forces you to grow as a person,” said the 30-year-old.
Richardson describes traveling alone like “a shot in the arm”, which “makes you a more confident person that was ready to deal with anything”. He said: “The feeling of having conquered something on my own is a major part of what drives me each day when I’m dealing with a difficult task. I walk around with my head up because I know deep down inside that nothing is impossible if you try.”
The great 19th century explorer John Muir once said: “Only by going alone in silence can one truly get into the heart of the wilderness.”
小題1:Which of the following will Kristina Wegscheider agree with?
A.Traveling alone is a necessary experience for everyone.
B.It is more meaningful to travel in foreign countries.
C.It is comfortable to travel around without a friend.
D.Traveling abroad helps people to find new things.
小題2:Traveling alone is challenging because        .
A.it will finally build your character
B.you have to make things on your own
C.you depend on yourself whatever happens
D.it is hard for you to prove yourself to others
小題3:What can we infer about Chris Richardson?
A.He started traveling at an early age.B.He was once shot in the arm.
C.His website inspires others a lot.D.He used to work as a salesman.

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:完形填空

Alcohol is often taken as a symbol of a special celebration or as a sign of friendship. So it is       to see people toasting with a large glass of alcohol to the health or fortune. Unfortunately, every year, alcohol also ruins thousands of lives and destroys many happy families.
Some people drink alcohol to     their tension or pain. They mistakenly think that through drinking, they can     from their problems and worries. But it is never a    . During those hours of drinking, alcohol only numbs their senses and makes them forget their worries. However, when they wake up, their problems are still unsolved.
A     alcohol drinker is running the great risks of getting heart diseases and liver failure. Too much alcohol taken into the body system, death will     occur. Alcohol also affects unborn babies disastrously. Those pregnant mothers with     alcohol in their blood system risk causing their unborn babies to suffer from defects (缺陷) at birth.    , babies are innocent victims due to their mothers’ mistakes. Therefore they should be extremely cautious of any alcohol and it is better to     all drinking during pregnancy.
Drunken driving is one of the worst     of alcohol abuse. Every year, many lives are lost due to    driving on roads and highways. A drunk driver cannot see and judge the distance clearly and will find it difficult to control his vision and     on the road, so he fails to control over his reflexes. That is how accidents occur. Not only does he hurt himself but also other innocent road users.
小題1:
A.normalB.idealC.commonD.regular
小題2:
A.increaseB.createC.produceD.relieve
小題3:
A.differB.escape C.solveD.cancel
小題4:
A.solutionB.successC.factD.decision
小題5:
A.socialB.a(chǎn)ddicted C.heavyD.light
小題6:
A.seldomB.hardly C.eventuallyD.strongly
小題7:
A.properB.excessiveC.littleD.no
小題8:
A.After allB.Above allC.First of allD.All in all
小題9:
A.run outB.leave outC.carry outD.cut out
小題10:
A.reasons B.effectsC.causesD.examples
小題11:
A.normalB.careless C.dangerousD.drunken
小題12:
A.judgmentB.patienceC.emotionD.imagination

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

Women turn to online shopping
Women have jumped ahead of men for the first time in using the Internet to do their holiday shopping,according to a study published last week in the US.
For years men have been more likely to shop on the Internet than women,but during the 2004 holiday season 58 percent of those making online purchases were women.
“It shows how mainstream the Internet is becoming”,said Lee Rainie,a director of the Pew Internet and American Life Project group,which carried out the study.
Rainie said it was only a matter of time before women shoppers caught up with men. This is because women traditionally make decisions about spending.
Users were more likely to shop online to save time. Internet users between the ages of 18 and 29 were responsible for some of the most dramatic(顯著的)increases in the online gift-buying population this time around.
However,three-quarters of the US Internet users did not buy holiday gifts online in 2004.They worried about credit card security,or just compared online prices with off-line prices,then dashed off to the shops to get the best deals.
“But even if shoppers don’t buy online,websites are becoming promotion tools for stores,”said Dan Hess,vice president of Comscore Networks Inc.Hess said that actually most stores’ websites can make shoppers fully believe the security of their credit card numbers. And most are able to ensure that gifts arrive on time.
“It’s all about making the shopping experience more efficient,more reliable and more comfortable,” Hess said.
小題1:Which of the following statements is true?
A.There were fewer women online shoppers than men in 2004.
B.Most of the Internet users between the ages of 18 and 29 are women.
C.People in the US were more likely to buy gifts online.
D.More women shopped online than men in 2004.
小題2:From the passage we can infer that________.
A.men usually decide how to spend money in the family
B.women usually decide what to buy in the family
C.the Internet is used in all the shops.
D.more and more shops will sell their goods online.
小題3:What can we know from the passage?
A.American people only buy gifts in holidays.
B.Shopping online is fun for women.
C.Shopping off-line provides better service.
D.Young people like to do gift-shopping online.

查看答案和解析>>

同步練習(xí)冊(cè)答案