题目内容

【题目】I got to the lecture hall very early, ______ to get a good rest.

A. hoping B. hoped C. to hope D. hope

【答案】A

【解析】

试题分析:考查非谓语动词。本句考查非谓语动词担当状语。此时,非谓语动词需要和主句主语保持一定的逻辑关系,本句主语为I,和hope之间存在主动发出的关系,故选择A,表主动发出。句意为:我到达演讲厅非常早,希望能够得到好的休息。

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【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."

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