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　　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.

1. 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

2. Researchers will collect all the following EXCEPT __________.

A. genetic samples from people in the study

B. biological samples from people in the study

C. samples from the homes of the women and their babies

D. samples of air and water from hospitals

3. It is expected that through the study the nation's health care costs __________.

A. will be lowered in the long run

B. will be significantly increased

C. will be more than $200 million

D. will reach $3.2 billion

4. The babies of the participants will be followed __________.

A. throughout their lives

B. for more than two decades

C. from birth to 21 months

D. until they get married

5. Which is NOT true of the people in the study?

A. They'll be from various areas.

B. They'll be from all income levels.

C. They'll be from all educational levels.

D. They'll be from all age groups.

答案与解析

1. C。细节题。题干：研究的目标是发现新的方法来 __________。利用题干关键词可以定位到短文的第二段，提到了此项研究的goal，即aim，这便是learning new ways to treat or prevent illness。

2. D。细节题。题干：研究者收集了下列东西，除了 __________。利用题干关键词可以定位到短文的第四段。第四项应该是“参加研究的妇女及其婴儿家中的'空气与水等物质”，而

不是“医院中的空气与水”。

3. A。细节题。题干：通过研究，国家的医疗费用期望可以 __________。利用题干关键词可以定位到短文的第六段，即预计从长远的角度讲，此项研究将有利于节约国家卫生保健费用的开支。

4. B。细节题。题干：参与者的婴儿会被跟踪调查 __________。利用题干关键词可以定位到短。文的倒数第三段，即这些婴儿将从出生前一直被跟踪到21岁。

5. D。细节题。题干：下列关于研究参与者的说法哪一项是不正确的?利用题干关键词可以定位到最后一段。前三项在短文的最后一段都有提及，只有第四项是错误的，因为研究对象都是怀孕的妇女，不可能是所有年龄段的人们。