2. 外语
  3. These days, science may have dissected almost every element of our diet, but many of us still feel at the sea. Even when sticki

These days, science may have dissected almost every element of our diet, but many of us still feel at the sea. Even when sticki

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问题     These days, science may have dissected almost every element of
our diet, but many of us still feel at the sea. Even when sticking to【S1】________
official advice, healthy foods that seem to energize one person can cause
another to feel fatigued and bloated. In 2015, scientists from Israel
tracked blood sugar levels of 800 people over several days, making the
surprising discovery individuals’ biological response to identical foods【S2】________
varied wildly. Some people had a blood glucose "spike" after eating
sugary ice cream, when others’ glucose levels only increased with【S3】________
starchy rice—a finding at odds against conventional wisdom.【S4】________
    Our bodies’ idiosyncratic handling of nutrients seem to be down to【S5】________
our genetics, the microbes in our gut, and variations in our organs’
internal physiology. Clinical trials like those are pioneered by Lind have【S6】________
given us general dietary guidelines, but nutrition research tends to assume
all humans are the same, and so can miss the nuances and specifically【S7】________
needs of the individual.
    In the next 10 years, the emerging field of "personalized nutrition"
will use genetic tests to fill in those gaps to offer healthy eating guidance
tailoring to the individual. Some companies have already tested your【S8】________
DNA and offered dietary advice—but the advice can be hit-and-miss.
By 2028, we will understand much more about our genetics. Dr. Jeffrey
Blumberg, a professor of nutrition science and policy at Tufts University
in Massachusetts, is one of the most outspoken advocate of this new【S9】________
science. He insists that DNA testing will unlock personalized nutrition.
"I’ll be able to tell you what kinds of fruits, what kinds of vegetables
and what kinds of whole grains you should be choosing, or exactly how
often," he says.
    Sadly, personalized nutrition makes cook meals for the whole【S10】________
family a little bit more taxing.
【S2】
选项
答案discovery∧→that
解析 同位语从句引导词缺失。本句意为“2015年，以色列科学家对800人的血糖水平进行了为期数天的跟踪调查，结果令人惊讶地发现，每个人对相同食物的生物反应差异很大。”分析句子结构可知，individuals’ biological response to identical foods varied wildly是对前面的discovery进行解释说明，故是同位语从句。同位语从句常由that引导，that，无词义，只起连接作用，但不可省略。故在discovery后加that。
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