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  3. 　　Pregnancy mothers are getting a new tool to help keep themselves and their babies healthy: pregnancy tips sent directly to the

　　Pregnancy mothers are getting a new tool to help keep themselves and their babies healthy: pregnancy tips sent directly to the

admin2021-09-14  2
问题 　　Pregnancy mothers are getting a new tool to help keep themselves and their babies healthy: pregnancy tips sent directly to their cell phones.
    The socalled text4baby campaign is the first free, health education program in the U.S. to harness the reach of mobile phones, according to its sponsors. Organizers say texting is an effective means of delivering wellness tips because 90 percent of people in the U.S. have cell phones.
    "Especially if you start talking about low-income people, cell phones are the indispensable tool for reaching them and engaging them about their health," said Paul Meyer, president of Voxiva, a company which operates health texting programs in Africa, Latin America and India.
    Studies in those countries have shown that periodic texts can reduce smoking and other unhealthy behaviors in pregnant mothers.
    Meyer said the U.S. program, run by Voxiva, will be the largest health-related texting program ever undertaken.
    Under the new service, mothers-to-be who text "BABY" to a specified number will receive weekly text messages, timed to their due date or their baby’s birth date. The messages, which have been scanned by government and nonprofit health experts, deal with nutrition, immunization and birth defect prevention, among other topics. The messages will continue through the baby’s first birthday.
    Text4baby is expected to be announced Thursday morning by officials from the White House’s Office of Science and Technology Policy. Government officials will be publicizing the campaign in speeches and promotional materials.
    Organizers hope the effort can curb premature (早产的) births, which can be caused by poor nutrition, excessive stress, smoking and drinking alcohol. About 500,000 babies are born prematurely in the U.S. each year. The nonprofit is among the sponsors of the campaign.
    "The real scary thing is that we’re an industrialized nation and we’re not doing very well on infant death rate, and we know prematurity is a big part of that," said the group’s director, Judy Meehan.
    Currently the U.S. ranks 30th worldwide for infant death rate, according to Meehan, behind most Western European nations.
    Researchers at the George Washington University have agreed to evaluate the effectiveness of text4baby by measuring health trends for mothers and newborns.
The word "harness" in Paragraph 2 can be replaced by "________".
选项 A、take advantage of
B、be independent of
C、produce an effect on
D、expand the range of
答案A
解析 根据题干定位到第2段第1句。根据第1段tips sent…to their cell phones和第2段第2句中的texting等信息可以推断第2段第1句中的harness意为“使用；利用”，表示text4baby是一个利用手机进行的活动，因此，本题应选A。将选项的意思代入文中，不难发现其他词义不符合上下文的句意。上下文表明text4baby要依赖手机作为传送工具，因此，B(脱离……的影响)可以立刻排除；且本文提到手机只是为了说明它是推行text4baby的工具，并没有讨论text4baby对手机产生了什么影响，C(手机产生影响)和D(扩大手机的使用范围)均不正确。
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