2. 外语
  3. 　　As he applied sunscreen to his young daughter’s face, Dara O’Rourke, professor of environmental and labour policy at the Univ

　　As he applied sunscreen to his young daughter’s face, Dara O’Rourke, professor of environmental and labour policy at the Univ

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问题 　　As he applied sunscreen to his young daughter’s face, Dara O’Rourke,
professor of environmental and labour policy at the University of California,
Berkeley, found him wondering if the lotion was safe. He realized there was【S1】________
no ready available answer. The result—two years, a team of chemists, lots【S2】________
of testing and a chunk of venture capital later—is GoodGuide.com.
Launched in 2008, this is a website and smart phone app that rates 140,000
consumer products (currently only in America) according to their safety,
environmental sustainability and the ethics of the firms that make them.
Now GoodGuide has created a new "purchase analyser" app designed to
inform consumers not just about the values embedding in products, but also【S3】________
about whether they are the virtuous shoppers they say they want to be.
Using the new app requires selecting a series of characteristics, that can【S4】________
range from whether the user favours organic products to buy only from firms【S5】________
with a good human-right record. The consumers then scan the barcode on【S6】________
product with the camera in their smart phone. The app identifies it and【S7】________
checks in a database to score how it shapes in. 【S8】________
　　Much however depends on the quality of the data, which GoodGuide【S9】________
gathers from various sources, including government reports and scientific studies,
and research by its own staff. If the product scores badly, the app will recommend an
alternative item which is rated more highly. The app also tracks a
consumer’s purchases to see how well they fit in with their【S10】________
selected values, giving a sort of personal virtue (or hypocrisy) rating.
【S7】
选项
答案^product→a
解析 冠词缺失。该句意为“然后消费者用其智能手机上的摄像头扫描产品的条形码。”此处product是泛指，因此前面需加不定冠词a。
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