单选题
下面有3篇短文,每篇短文后有5道题,每题后面有4个选项。请仔细阅读短文并根据短文回答其后面的问题,从4个选项中选择1个最佳答案。
{{B}}第一篇{{/B}}
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.
单选题 The aim of the study is to find new ways to______.
【正确答案】 C
【答案解析】[直接定位] 第二段末尾写到,这项研究的目的是“treat or prevent illness”。
单选题 Researchers will collect all the following EXCEPT______.
【正确答案】 D
【答案解析】[逐项排除] 从文中可知,研究人员采集了参与研究者的各种样本,唯有医院中的空气和水一项,并没有提到。
单选题 It is expected that through the study the nation's health care costs______.
【正确答案】 A
【答案解析】[直接定位] 第六段引用Duane Alexander博士的话说,假以时日,这项研究会大大节约美国的医保成本。
单选题 The babies of the participants will be followed______.
【正确答案】 B
【答案解析】[词义辨析] 由首段得知,该研究将追踪新生儿至21岁,选项A中,“decade'’是“十年”的意思,“more than two decades”即“超过二十年”,符合文意。
单选题 Which is NOT true of the people in the study?
【正确答案】 D
【答案解析】[逻辑推理] 第一段已经写了,该研究的对象是初生儿到21岁的青年,非“所有年龄组”的人。