题目内容
【题目】Scientists have discovered that ____【1】____(stay) in the cold could help us lose weight. Researchers at the University of California found that exposure to the cold increases levels of a protein that helps form brown fat -------- the type of fat that produces heat and keeps us warm. Brown fat burns energy, ____【2】______ helps us lose weight. White fat stores extra energy, which results ____【3】_____ weight gain. The researchers said that because air conditioning and heating give us constant, ____【4】_______(comfort) temperatures, our body's need for brown fat has decreased. They found that: "Outdoor workers in northern Finland who _____【5】______(expose) to cold temperature have __【6】____ significant amount of brown fat when ___【7】___(compare) to same-aged indoor workers."
The research was conducted on two different control groups of mice. __【8】____ group was injected with the protein that helps create brown fat. This group later gained 30% less weight after both groups were fed high-fat diets. The researchers say this could be good news in the fight against obesity. People who are obese have ＿【9】＿＿（low) levels of brown fat than thinner people. Head researcher Hei Sook Sul said: "This protein could become an important target for research into the treatment and prevention of obesity and obesity-related diseases." She added: "If you can somehow increase levels of this protein, you could ____【10】_____(possible) lose more weight even if eating the same amount of food."
【答案】
【1】staying
【2】which
【3】in
【4】comfortable
【5】are exposed
【6】a
【7】compared
【8】One
【9】lower
【10】possibly
【解析】
试题分析：科学家发现呆在寒冷的环境下可以帮助人们减肥。因为在寒冷有助于棕色脂肪组织的形成，这种脂肪组织可以产生热量，让人们保暖。而棕色脂肪组织燃烧热量，因此有助于人们体重的减轻。
【1】staying 考查非谓语动词。从结构可知此处是非谓语做主语，用动名词形式，填staying。
【2】which考查关系代词。在非限制性定语从句中缺少主语，用关系代词which指代前句话内容。
【3】in 考查介词。固定短语：result in 导致，造成，填in。
【4】comfortable考查形容词。此处是和constant并列做temperatures的定语，故用形容词形式。
【5】are exposed考查谓语动词。Expose是及物动词，句中没有宾语，判断用被动形式，be exposed to “暴露在……之下”，根据主谓一致原则，填are exposed。
【6】a 考查冠词。固定短语：a significant amount of“大量的”，填a。
【7】compared考查非谓语动词。此处是“连词+分词”结构，compare和句子主语outdoor workers之间是被动关系，用过去分词，填compared。
【8】One考查数词。从上文内容可知此处指两组中的一组，因位于句首，故填One。
【9】lower考查比较级。根据句中than可知此处用比较级，修饰名词levels，用形容词，故填lower。
【10】possibly考查副词。修饰动词lose用副词形式，故填possibly。
