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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 in- come and educational levels and from all racial groups, the NIH said.

The aim of the study is to find new ways to______.

A．conduct research

B．track public health

C．prevent or treat illness

D．speed up development

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更多“A study that will cost $ 3.2 b…”相关的问题

第1题

According to the text, Case history isA．a study that researches in the records of legal co

According to the text, Case history is

A．a study that researches in the records of legal courts.

B．a discipline founded by Le Roy Ladurie.

C．the only study that use the records of legal courts.

D．based on the data obtained from the records of legal courts.

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第2题

A．Her number is 9087436.B．She works far from Building A.C．She will take the evening co

A．Her number is 9087436.

B．She works far from Building A.

C．She will take the evening course.

D．She wants to study Mandarin and Spanish.

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第3题

Why does the author cite the study by Bangor University and the Royal Mail Service？A．To co

Why does the author cite the study by Bangor University and the Royal Mail Service？

A．To compare similar responses in different settings.

B．To provide further evidence for his own observation.

C．To offer a scientific account of the brain"s functions.

D．To describe emotional responses in online shopping.

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第4题

The fact that the woman endeavors to work for her professor is to______.A．earn money to co

The fact that the woman endeavors to work for her professor is to______.

A．earn money to cover her daily expense

B．further her study to do a PhD at a different school

C．complete her Master"s degree sooner

D．get her professor"s recommendation

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第5题

Smoking Can Increase Depressive Symptoms in TeensWhile some teenagers may puff on cigarett

Smoking Can Increase Depressive Symptoms in Teens

While some teenagers may puff on cigarettes to "self - medicate" against the blues, scientists at the University of Toronto and the University of Montreal have found that smoking may actually______【51】depressive symptoms in some teens.

"This observational study is one of the few to examine the perceived______【52】benefits of smoking among teens," says lead researcher Michael Chaiton, a research associate at the Ontario Tobacco Research Unit of the University of Toronto.

"______【53】cigarettes may appear to have self - medicating 【54】______or to improve mood, in the long term we found that teens who started to smoke reported higher depressive symptoms. "

As part of the study, some 662 high school teenagers completed up to 20 questionnaires 【55】______their use of cigarettes of affect mood. Secondary schools were selected to provide a mix of French and English participants, urban and rural schools, and schools 【56】______in high, moderate and low socioeconomic neighborhoods.

Participants were divided into three 【57】______: never smokers; smokers who did not use cigarettes to self - medicate, improve mood or physical 【58】______;smokers who used cigarettes to self - medicate. Depressive symptoms were measured u-sing a scale that asked how often participants felt too tired to do things; had 【59】 ______going to sleep or staying 【60】______; felt unhappy, sad, or depressed; felt hopeless about the future; felt vexed, antsy or tense; and worried too much a-bout things.

"Smokers who used cigarettes as mood 【61】______had higher risks of elevated depressive symptoms than teens who had never smoked," says co -researcher Jennifer O'Loughlin, a professor at the University of Montreal Department of Social and Preventive Medicine. "Our study found that teen smokers who reported emotional benefits from smoking are at higher risk of 【62】______depressive symptoms. "

The 【63】______between depression and smoking exists 【64】 ______among teens that use cigarettes to feel better. "It's 【65】______to emphasize that depressive symptom scores were higher among teenagers who reported emotional benefits from smoking after they began to smoke," says Dr. Chaiton.

(51)

A．examine

B．increase

C．decrease

D．diagnose

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第6题

U. S. Life Expectancy Hits New HighLife expectancy rates in the United States are at an al

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 by 2005, 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'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 per 100,000.

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 cut out for us," he said.

Since 1955, life expectancy rates in the U. S. have

A．moved up and down.

B．been declining.

C．remained steady.

D．been on the rise.

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第7题

根据下列材料请回答 37～41 题：U.S.Life Expectancy Hits New HighLife expectancy rates in the

根据下列材料请回答 37～41 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 in1955.when the average American lived to be 59.6 years old.By 1995，life expectancy was 75.8 years，and by 2005，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'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.6an'ceF arid stroke.

In addition，in 2005，the U.S.death rate dropped to an all—time low of less than 800 deaths per 1 00,000.

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 cut out for U.S.” he said.

第37题：Since 1955，life expectancy rates in the U.S.have

A．moved up and down.

B．been declining.

C．been on the rise.

D．remained steady.

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第8题

根据下列材料请回答 32～36 题：U.S.Life Expectancy Hits New HighLife expectancy rates in the

根据下列材料请回答 32～36 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 1 955，when the average American lived to be 69.6 years old.By 1 995，life expectancy was 75.8 years，and by 2005，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’S even beer news that it is a continuation 0f 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 800deaths per 100,000.

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 cut out for us.”he said.

第 31 题 Since 1 955, life expectancy rates in the U.S. have

A． moved up and down.

B． been declining.

C． been on the rise.

D． remained steady.

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第9题

关联研究（association study)

关联研究(association study)

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第10题

你看见同学在学习，你会说：____（）

A.on’t study

B.Let’s study together

C.Study, please

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第11题

They study in No. 13 Middle School.A．TrueB．False

They study in No. 13 Middle School.

A．True

B．False

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