题目内容

4.Scientists have discovered that  (61)staying (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)which helps us lose weight.White fat stores extra energy,which results (63)in weight gain.The researchers said that because air conditioning and heating give us constant,  (64)comfortable (comfort) temperatures,our body's need for brown fat has decreased.They found that:"Outdoor workers in northern Finland who (65)areexposed (expose) to cold temperature have (66)asignificant amount of brown fat when (67)compared(compare) to same-aged indoor workers."
The research was conducted on two different control groups of mice.(68)One 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)lower(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)possibly (possible) lose more weight even if eating the same amount of food."

分析 本文主要讲述科学家发现呆在寒冷的地方可以使人减轻体重.

解答 61.staying 考查动名词.分析句子结构,句中缺少主语,此处是动名词短语staying in the cold作主语.
62.which 考查定语从句.分析句子结构可知这是一个定语从句,先行词energy指物,在从句中作主语,用关系代词which.
63.in 考查固定搭配.result in意为"导致,造成",是固定搭配.
64.comfortable 考查形容词.此处是comfortable和constant并列作temperatures的定语.
65.are exposed 考查动词时态和语态.expose是及物动词,句中没有宾语,要用被动形式.be exposed to 意为"暴露在…之下",根据主谓一致原则,用are exposed.
66.a 考查冠词.a significant amount of"大量的",是固定搭配.
67.compared 考查过去分词.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.
68.One 考查数词.根据前面一句two different control groups of mice,此处是指其中的一组,用one.
69.lower 考查形容词比较级.根据句中than可知此处用比较级,修饰名词levels,用形容词比较级.
70.possibly 考查副词.副词修饰动词lose,形容词possible的副词是possibly.

点评 在一篇200词左右的语篇(短文或对话)中留出10处空白,部分空白的后面给出单词的基本形式,要求考生根据上下文填写空白处所需的内容或所提供单词的正确形式,所填写词语不得多于3个单词.要做好语法填空题,理解短文是解题的前提,扎实的词汇、句型和语法知识是基础,英语国家的背景知识是必要的补充.考生须灵活运用语法知识,如单词词性、单词时态、名词单复数、连接词、代词、冠词等判断各空白处应填写的内容.答完后,还要通读全文,核对所填单词形式是否正确,是否符合语境.

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