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根据下面材料,回答题。 U. S. Life Expectancy Hits New HighLife expectancy rates in the Un

根据下面材料,回答题。

U. S. Life Expectancy Hits New High

Life expectancy rates in the United States are at an all-time high, with people born in 2005 projected to live for nearly 78 years, a new federal study finds.

The finding reflects a continuing trend of increasing life expectancy that began in 1955, when the average American lived to be 69.6 years old. By 1995, life expectancy was 75.8 years, and by2005, it had risen to 77.9 years, according to the report released Wednesday.

"This is good news." said report co-author Donna Hoyert, a health scientist at the National Center for Health Statistics. "It&39;s even better news that it is a continuation of trends, so it is a long period of continuing improvement."

Despite the upward trend, the United States still has a lower life expectancy than some 40 other countries, according to the U. S. Census (人口普查)Bureau. The country with the longest life expectancy is Andorra at 83.5 years, followed by Japan, Macau, San Marino and Singapore.

Much of the increase owes to declining death rates from the three leading causes of death in the country-heart disease, cancer and stroke.

In addition, in 2005, the U. S. death rate dropped to an all-time low of less than- 800 deaths per100,000.

Dr. David Katz, director of the Prevention Research Center at Yale University School of Medicine, said, "News that life expectancy is increasing is, of course, good. But the evidence we have suggests that there is more chronic disease than ever in the U. S."

Adding years to life is a good thing, Katz said. "But adding vital life to years is at least equally important. If we care about living well, and not just longer, we still have our work cutout for us." he said.

Since 1955, life expectancy rates in the U. S. have ___________. 查看材料

A.moved up and down

B.been declining

C.remained steady

D.been on the rise

答案
查看答案
更多“根据下面材料,回答题。 U. S. Life Expectancy Hits New HighLife expectancy rates in the Un”相关的问题

第1题

根据下面材料,回答题。 U.S. to Start $3.2 Billion Chiltd Health Study in JanuaryA study t

根据下面材料,回答题。

U.S. to Start $3.2 Billion Chiltd Health Study in January

A study that will cost $3.2 billion and last more than two decades to track the health of100,000 U.S. children from before birth to age 21 will be launched in January, U. S. health officials said on Friday.

Officials from the U. S. government&39;s National Institutes of Health said they hope the study, to be conducted at 105 locations throughout the United States, can help identify early-life influences that affect later development, with the goal of learning new ways to treat or prevent illness.

The study will examine hereditary and environmental factors such as exposure to certain chemicals that affect health.

Researchers will collect genetic and biological samples from people in the study as well as samples from the homes of the women and their babies including air, water, dust and materials used to construct their residences, the NIH said.

Officials said more than $200 million has been spent already and the study is projected to cost $3.2 billion.

"We anticipate that in the long term, what we learn from the study will result in a significant savings in the nation&39;s health care costs," Dr. Duane Alexander, who heads the NIH&39;s Eunice Kennedy Shriver National Institute of Child Health and Human Development, told reporters.

The study will begin in January when the University of North Carolina and the Mount Sinai School of Medicine in New York start signing up pregnant women whose babies will then be followed to age 21.

Some of the early findings will be about factors behind pre-term birth, which has become more common in recent years, according to Dr. Peter Scheidt of the NIH, who heads the study.

The people taking part will be from rural, urban and suburban areas, from all income and educational levels and from all racial groups, the NIH said.

The aim of the study is to find new ways to __________. 查看材料

A.conduct research

B.track public health

C.prevent or treat illness

D.speed up development

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第2题

根据下面内容,回答题:AThis classic cross-culture book provides reading passages, culture n

根据下面内容,回答题:

A

This classic cross-culture book provides reading passages, culture notes, and discussion topics which focus on values, behaviours, attitudes and communication styles. It features a chapter on cultural diversity in the U. S. , an explanation of mainstream U. S. values with examples which reveal some of the more hidden aspects of culture, examples of cross-cultural differences in a wide variety of cultures, and extensive readings and exercises.

B

As a multistand course——organized according to functions, discussion techniques and communication concepts——this text develops the speaking skills of business professionals or business students. It is easily adaptable to differing class sizes, student needs and interests. A special feature of the course is its carefully staged discussion activities which structure and facilitate group partici- pation.

C

This series is intended for students now ready to approach English literature. Each book deals with both the literary and the language aspects of their texts. Some exercises focus on a personal response, others on discussing literary qualities such as style, character, imagery and ideas. Other exercises concentrate on the development of language awareness in terms of grammar, vocabulary and different styles of writing.

D

Authentic texts covering a wide range of topics provide a stimulating basis for an approach of skills and strategies to academic reading. Techniques of skimming and scanning, identifying main ideas, understanding text organization and guessing unknown vocabulary provide the basis for each unit. These are followed by more advanced strategies, such as analyzing a writer"s use of time, evaluating a writer"s attitude and assessing the degree of certainty in arguments. Each unit ends with discussion topics which lead to a writing task based on the reading texts.

It aims to train the students to become sensitive to different styles of writing. 查看材料

点击查看答案

第3题

根据以下材料,回答题U.S. to Start $3.2 Billion Child Health Study in JanuaryA study that wi

根据以下材料,回答题

U.S. to Start $3.2 Billion Child Health Study in January

A study that will cost $3.2 billion and last more than two decades to track the health of 100,000 U.S. children from before birth to age 21 will be launched in January, U. S. health officials said on Friday.

Officials from the U. S. government"s National Institutes of Health said they hope the study, to be conducted at 105 locations throughout the United States, can help identify early-life influences that affect later development, with the goal of learning new ways to treat or prevent illness.

The study will examine hereditary and environmental factors such as exposure to certain chemicals that affect health.

Researchers will collect genetic and biological samples from people in the study as well as samples from the homes of the women and their babies including air, water, dust and materials used to construct their residences, the NIH said.

Officials said more than $200 million has been spent already and the study is projected to cost $3.2 billion.

"We anticipate that in the long term, what we learn from the study will result in a significant savings in the nation"s health care costs," Dr. Duane Alexander, who heads the NIH"s Eunice Kennedy Shriver National Institute of Child Health and Human Development, told reporters.

The study will begin in January when the University of North Carolina and the Mount Sinai School of Medicine in New York start signing up pregnant women whose babies will then be followed to age 21.

Some of the early findings will be about factors behind pre-term birth, which has become more common in recent years, according to Dr. Peter Scheidt of the NIH, who heads the study.

The people taking part will be from rural, urban and suburban areas, from all income and educational levels and from all racial groups, the NIH said.

The aim of the study is to find new ways to __________. 查看材料

A.conduct research

B.track public health

C.prevent or treat illness

D.speed up development

点击查看答案

第4题

请根据短文的内容,回答题。 U. S. Blacks Hard-hit by CancerDeath rates for cancer are fallin

请根据短文的内容,回答题。

U. S. Blacks Hard-hit by Cancer

Death rates for cancer are falling for all Americans, but black Americans are still more likely to die of cancer than whites, the American Cancer Society said Monday.<br>

In a special report on cancer and blacks, the organization said blacks are usually diagnosed with cancer later than whites, and they are more likely to die of the disease. This could be because of unequal (不平等的) access to medical care, because blacks are more likely to have other diseases as well, and perhaps because of differences in the biology (生物学) of the cancer itself, the report added.<br>

"In general, black Americans have less hope of surviving five years after diagnosis than whites for all cancer sites and all stages of diagnosis," the report said.<br>

"In describing cancer statistics for black Americans, this report recognizes that many of the differences associated with race may be caused by unfair social and economic differences and unequal access to medical care."<br>

The cancer society said blacks should be encouraged to get check-ups (体格检查) earlier,when cancer is more treatable, and it said more research is needed to see if biological differences play a role.<br>

"The new statistics emphasize the continuing importance of wiping out these unfair social differences through public policy and education efforts," the organization said in a statement.<br>

But it also noted a drop in cancer death rates.<br>

"Cancer death rates in both sexes for all sites combined have dropped greatly among black Americans since 1992, as have incidence rates (发生率) ," said the report.<

Black Americans arc more likely to die of cancer than__________. 查看材料

A.people in other countries

B.white Americans

C.all other Americans

D.their ancestors

点击查看答案

第5题

根据以下材料,回答题Migrant (移民的) WorkersIn the past twenty years, there has been an inc

根据以下材料,回答题

Migrant (移民的) Workers

In the past twenty years, there has been an increasing tendency for workers to move from one country to another. While some countries have restricted most __________ (51) to local people,others have attracted and welcomed migrant workers. This is particularly the case in the Middle East, __________ (52) increased oil incomes have enabled many countries to call in outsiders to improve local facilities. Thus the Middle East has attracted oilworkers __________ (53) the U. S. A. and Europe. It has brought in workers from many countries, __________ (54) South Korea and Japan.

In view of the difficult living and worldng __________ (55) in the Middle East, it is not surprising that the pay is high to attract suitable workers. Many engineers and technicians can __________ (56) at least twice as much money in the Middle East as they can in their own country, and this is a major __________ (57)

Sometimes a disadvantage has a compensating (补偿的 )advantage. For example, the __________ (58)living conditions often lead to increased friendship when workers have to __________ (59) on each other for safety and comfort. In a similar way, many migrant workers can save large sums of money partly because of the __________ (60) of entertainment facilities. The work is often complex and full of problems but this merely __________ (61) greater challenge to engineers who prefer to find solutions to problems rather than do routine work in their home country.

One major problem which __________ (62) migrant workers in the Middle East is that their jobs are temporary ones. They are nearly always on __________ (63) , so it is not easy for them to plan ahead with great confidence. This is to be __________ (64) since no country welcomes a large number of foreign workers as permanent residents. In any __________ (65), migrant workers accept this disadvantage, along with others, because of the considerable financial benefits which they receive.

回答(51)题 查看材料

A.cases

B.jobs

C.activities

D.uses

点击查看答案

第6题

Where does Madam Li work?A.Branch of Sinochem in the U. S.B.Sinochem in Canada.C.Expor

Where does Madam Li work?

A.Branch of Sinochem in the U. S.

B.Sinochem in Canada.

C.Export Division No. 4.

点击查看答案

第7题

回答题:The Case of the Disappearing FingerprintsOne useful anti-cancer drug can effectivel

回答题:

The Case of the Disappearing Fingerprints

One useful anti-cancer drug can effectively erase the whorls and other characteristic marks that give people their distinctive fingerprints. Losing__________(51)could become troublesome. A case released online in a letter by Annals of Oncology indicates how big a__________(52) of losing fingerprints is.

Eng-Huat Tan, a Singapore-based medical doctor describes a 62-year old man who has used capecitabine to __________(53)his nasopharyngeal cancer. After three years on the__________(54), the patient decided to visit U. S. relatives last December. But he was stopped by U. S. customs officials __________(55)4 hours after entering the country when those officials couldn"t get fingerprints from the man. There were no distinctive swirly__________(56) appearing from his index finger.

U.S. customs has been fingerprinting incoming foreign visitors for years, Tan says. Their index fingers are__________(57) and screened against digital files of the fingerprints of bad guys-terrorists and potential criminals that our federal guardians have been tasked with keeping out of the country. Unfortunately, for the Singaporean travelers, one potential__________(58)effect of his drug treatment is a smoothing of the tissue on the finger pads. __________(59), no fingerprints.

"It is uncertain when fingerprint loss will__________(60) to take place in patients who are taking eapecitabine," Tan points out. So he cautions any physicians who__________(61)the drug to provide their patients with a doctor"s note pointing out that their medicine may cause fingerprints to disappear.

Eventually, the Singapore traveler made it into the United States. I guess the name on his passport didn"t raise any red flags. But he"s-also now got the explanatory doctor"s note——and won"t leave home __________(62) it.

By the way, maybe the Food and Drug Administration, __________(63) approved use of the drug 11 years ago, should consider __________ (64) its list of side effects associated with this medi-cine. The current list does note that patients may experience vomiting, stomach pain and some other side effects. But no where __________(65) it mention the potential for loss of fingerprints.

材料题请点击右侧查看材料问题 查看材料

A.him

B.her

C.them

D.he

点击查看答案

第8题

阅读材料,回答题。 The Diminishing Scientific Leadership of the U, S.With the rapid global

阅读材料,回答题。

The Diminishing Scientific Leadership of the U, S.

With the rapid globalization of science itself (more than 40 percent of scientific Ph.D. students trained in the United States are now foreign nationals, roughly half of whom return to their countries of origin ) , the once undisputed U.S.scientific lead, whether relevant to product lead or not, is diminishing.

The competition of foreign students for positions in U.S.graduate schools has also contributed to making scientific training relatively unattractive to U.S.students, because the rapidly increasing supply of students has diminished the relative rewards of this career path. For the best and brightest from low-income countries, a position as a research assistant in the United States is attractive, whereas the best and brightest U.S.students might now see better options in other fields. Science and engineering careers, to the extent that they are opening up to foreign competition (whether imported or available through better communication ) , also seem to be becoming relatively less attractive to U.S. students.

With respect to the role of universities in the innovation process the speculative boom of the 1990s(which, among other things, made it possible to convert scientific findings into cash rather quickly ) was largely unexpected.The boom brought universities and their faculties into much closer contact with private markets as they tried to gain as much of the economic dividends from their discoveries as possible. For a while,the path between discoveries in basic science and new flows of hard cash was considerably shortened. But during the next few decades, this path will likely revert toward its more traditional length and reestablish in a healthy way, the more traditional (and more independent ) relationship between the basic research done at universities and those entities that translate ideas into products and services.

In the intervening years, another new force also greatly facilitated globalization: the rapid growth of the Internet and cheap wide-bandwidth international communication. Today, complex design activities can take place in locations quite removed from manufacturing, other business functions and the consumer. Indeed, there is now ample opportunity for real-time communication between business functions that are quite independent of their specific locations. For example, software are development, with all its changes and complications, can to a considerable extent be done overseas for a U.S.customer.Foreign call centers can respond instantly to questions from thousands of miles away.The result is that low-wage workers in the Far East and in some other countries are coming into even more direct competition with a much wider spectrum of U.S. labor: unskilled in the case of call centers; more highly skilled in the case of programmers.

The rapid globalization of science__________. 查看材料

A.has led to the rapid growth of the Internet

B.has diminished the relative rewards of science and engineering careers"

C.has resulted in the fierce competition of scientific training the U. S.

D.has contributed to the diminish of U. S. scientific leadership

点击查看答案

第9题

回答题。 ates of Marriage in AmericaThe United States has historically had higher rates o

回答题。

ates of Marriage in America

The United States has historically had higher rates of marriage than those of other industrialized countries. The current annual marriage 51 in the United States--about 9 new marriages for every 1,000 people--is 52 .higher than it is in other industrialized countries. However, marriage is 53 as widespread as it was several decades ago. 54 of American adults who are married 55 from 72 percent in 1970 to 60 percent in 2002. This does not mean that large numbers of people will remain unmarried 56 their lives. Throughout the 20th century, about 90 percent of Americans married at some 57 in their lives. Experts 58 that about the same proportion of today&39;s young adults will eventually marry.

The timing of marriage has varied 59 over the past century. In 1995 the average age of women in the United States at the time of their first marriage was 25. The average age of men was about 27. Men and women in the United States marry for the first time an average of five years later than people did in the 1950s. 60 , young adults of the 1950s married younger than did any previous 61 in U. S. history. Today&39;s later age of marriage is 62 the age of marriage between 1890 and 1940. Moreover, a greater proportion of the population was married (95percent ) during the 1950s than at any time before 63 . Experts do not agree on why the "marriage rash" of the

late 1940s and 1950s occurred, but most social scientists believe it represented a 64 to the return of peaceful life and prosperity after 15 years of severe economic 65 and war.

材料题请点击右侧查看材料问题 查看材料

A.rate

B.ratio

C.percentage

D.poll

点击查看答案

第10题

回答题: Medicine Award Kicks off NobelPrize AnnouncementsTwo scientists who have won pr

回答题:

Medicine Award Kicks off Nobel

Prize Announcements

Two scientists who have won praise for research into the growth of cancer cells could be can-didates for the Nobel Prize in medicine when the 2008 winners are presented on Monday, kicking off six days of Nobel announcements.

Australian-born U. S. citizen Elizabeth Blackburn and American Carol Greider have already won a series of medical honors for their enzyme research and experts say they could be among the front-runners for a Nobel.

Only seven women have won the medicine prize since the first Nobel Prizes were handed out in 1901. The last female winner was U. S. researcher Linda Buck in 2004,who shared the prizewith Richard Axel.

Among the pair&39;s possible rivals are Frenchman Pierre Chambon and Americans Ronald Evans arid Elwood Jensen, who opened up the field of studying proteins called nuclear hormone re-ceptors.

As usual, the award committee is giving no hints about who is in the running before presen-ting its decision in a news conference at Stockholm&39;s Karolinska Institute.

Alfred Nobel, the Swede who invented dynamite, established the prizes in his will in the cat-egories of medicine, physics, chemistry, literature and peace. The economics prize is technicallynot a Nobel but a 1968 creation of Sweden&39;s central bank.

Nobel left few instructions on how to select winners, but medicine winners are typically awar-ded for a specific breakthrough rather than a body of research.

Hans Jornvall, secretary of the medicine prize committee, said the 10 million kronor (US $1.3 million) prize encourages groundbreaking research but he did not think winning it was the primary goal for scientists.

"&39; Individual researchers probably don&39;t look at themselves as potential Nobel Prize winners when they&39;re at work," Jornvall told The Associated Press. "They get their kicks from their re-search and their interest in how life functions. "

In 2006.Blackburn, of the University of California, San Francisco, and Greider, of Johns Hopkins University in Baltimore, shared the Lasker prize for basic medical research with Jack Szostak of Harvard Medical School. Their work set the stage for research suggesting that cancel ceils use telomerase to sustain their uncontrolled growth.

Who is NOT a likely candidate for this year‘s Nobel Prize in medicine? 查看材料

A.Pierre Chambon

B.Linda Buck

C.Carol Greider

D.Elizabeth Blackburn

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