题目内容
15.Scientists have discovered that (41)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,(42)which helps us lose weight.White fat stores extra energy,which results(43)in weight gain.The researchers said that because air conditioning and heating give us constant,(44)comfortable (comfort) temperatures,our body's need for brown fat has decreased.They found that:"Outdoor (45)workers(worker) in northern Finland who are exposed to cold temperature have (46)gained(gain) significant amount of brown fat when (47)compared (compare) to same-aged indoor workers."The research was conducted on two different groups of mice.(48)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(49)lower(low) levels of brown fat than thinner people.Head researcher Hei Sook Sul said:"If you can increase levels of this protein,you could (50)possibly (possible) lose more weight even if eating the same amount of food."
分析 考查语法填空,文章大意:本文讲述了呆在寒冷中的人会增加形成褐色脂肪的蛋白质,褐色脂肪能消耗热量,能减肥.
解答 41.staying,考查动名词,此处用动名词短语"staying in the cold"作主语.
42.whichkc非限制性定语从句,指代前面整个句子内容,用which.
43.in,考查介词,result in"导致,引起".
44.comfortable,考查形容词,此处修饰名词,应该用形容词.
45.workers,考查名词.worker是可数名词,前面没有冠词,所以用复数表示一类人.
46.gained,考查过去分词,前面有have,表示"已经获得",应该用过去分词构成现在完成时态.
47.compared,考查过去分词,compared to或compared with都是"和…比起来",固定搭配.
48.One,考查数词,"一组",用"one group"表达.
49.lower,考查形容词比较级,后面有than,前面用比较级.
50.possibly,考查副词,修饰动词,用副词.
点评 本题主要考查了用单词或短语的适当形式填空.做本题的关键是在理解短文的基础上,灵活运用所学的基础知识.本题考到的知识点有:固定的短语,词类的转换,名词的复数形式,副词以及祈使句的用法等.因此,这就需要在平时的学习中,牢固掌握各语言点及一些语法知识.
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