Question

3．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）whichhelps 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）are exposed（expose） to cold temperature have （66）asignificant amount of brown fat when67）compared（compare） to same-aged indoor workers．"The research was conducted on two different control groups of mice．（68）Onegroup 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．"

Answer 1

分析 科學家研究發(fā)現(xiàn)處在寒冷的環(huán)境里能幫助人們減肥，人體內(nèi)有兩種脂肪，褐色脂肪燃燒能力幫助減肥，白色脂肪儲存能量使人增肥，經(jīng)常暴露在寒冷環(huán)境里的人體內(nèi)褐色脂肪較多，故寒冷的環(huán)境能幫助人們減肥．

解答 1．staying；考查非謂語動詞．此處在that從句中作主語，故用動名詞staying．
2．which；考查定語從句．先行詞是"Brown fat burns energy"整個句子，且在定語從句中作主語，故用which引導，譯為"這一點"．
3．in； 考查固定短語．根據(jù)句意，result in是固定短語意為"導致，結(jié)果是…"．
4．comfortable；考查形容詞，此處在句中作定語，修飾"temperatures"，故用形容詞comfortable．
5．a(chǎn)re exposed；考查動詞的語態(tài)．此處指"被暴露在…"，故用被動語態(tài)are exposed．be exposed to意為"暴露在…"．
6．a(chǎn)； 考查冠詞．a(chǎn) significant amount of 是固定短語，意為"大量的"．
7．compared； 考查非謂語動詞．句子的主語"outdoor workers"與compare之間是被動關(guān)系，故用過去分詞compared在句中作狀語．
8．One；考查數(shù)詞．此處指其中一個組，故用one．
9．lower； 考查形容詞比較級．根據(jù)句中"than"可知此處用比較級，故用lower．
10．possibly；考查副詞，此處用副詞possibly在句中作狀語，修飾動詞lose．

點評 首先要通讀全文，了解大意，抓住上下文語境所提供的信息，仔細分析帶空格的句子，明確空格所要填的詞義，詞型和短語搭配，給出所要填的正確形式，然后整體閱讀短文，核對答案．