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语篇填空
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 the 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.”
参考答案与解析
1.【答案】staying。解析:动名词做主语。故本题填staying。
2.【答案】which。解析:which引导非限定性定语从句。故本题填which。
3.【答案】in。解析:result in“导致”。句意:“导致体重增加”。故本题填in。
4.【答案】comfortable。解析:形容词作定语。故本题填comfortable。
5.【答案】exposed。解析:过去分词短语做后置定语。故本题填exposed。
6.【答案】a。解析:an amount of“许多”。故本题填a。
7.【答案】compared。解析:when+过去分词做状语,其中省略了主语和be动词。故本题填compared。
8.【答案】One。解析:根据句意可知多组小白鼠,其中一组被注射了能产生brown fat的蛋白质。故本题填One。
9.【答案】lower。解析:句意:“胖人比瘦人的brown fat含量更低”。故本题填lower。
10.【答案】possibly。解析:副词作状语。故本题填possibly。