题目

Scientists have discovered that__61  (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,   62  helps us lose weight. White fat stores extra energy, which results  63    weight gain. The researchers said that because air conditioning and heating give us constant,    64    (comfort) temperatures, our body’s need for brown fat has decreased. They found that: “Outdoor workers in northern Finland who  65   (expose) to cold temperature have  66    significant amount of brown fat when  67  (compare) to same-aged indoor workers.” The research was conducted on two different control groups of mice.   68  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  69  (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  70   (possible) lose more weight even if eating the same amount of food.” 答案：61．考点定位: 动名词 分析句子，可知空格的词应做为主语，故用动名词作主语，填staying。 62．考点定位: 定语从句 分析句子，可知本句是一个定语从句，在从句中缺少主语，而先行词是前面整个句子的内容，故用which。 63．考点定位: 介词 在英语的用法中，result in是固定搭配，意思是：导致。 64．考点定位: 形容词／比较等级 分析句子，可知temperature前应该用形容词修饰，根据句意，用comfort的形容词形式comfortable。 65．考点定位: 一般现在时及其被动式 分析句子成分可知此处要用谓语动词；根据句意，要用被动语态，故填一般现在时的被动语态are exposed。 66．考点定位: 冠词 An amount of…是固定搭配，意思是： …的数量。根据句意，可知要用不定冠词a。 67．考点定位: 过去分词 根据上下文，可知此处要用非谓语动词。又由于句子的意思是“被比较”，故用过去分词表被动。 68．考点定位: 代词／不定代词 根据上下文的意思，上文说分成了若干组，故可知道此处应该是提到了一组，故填代词one。 69．考点定位: 形容词／比较等级 分析本句的句子可发现此空格后有than，可知此处要用比较级，故填lower。 70．考点定位: 副词／比较等级 分析句子结构，可知空格处要用一个副词来修饰其后的动词lose，故填possibly。 61．staying  62．which  63．in  64．comfortable  65．are exposed  66．a   67．compared   68．On   69．lower  70．possibly

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