成人本科学士学位英语考试附答案Word文件下载.docx

1、 Don t think your fat cellswont notice. A new study published in The Ann als of Internal Medic ine （a medicaljournal） finds that inadequate shut-eye has a harmful effect on fat calls, reducing their ability to respond to insulin （ 胰岛素）by about 30 percent. Over the long-term , thisdecreased response

2、could set-the stage for type-2 diabetes （a medical condition in which someone has too much sugar in his or her blood）, f atty liver disease and weight gain .The study adds to a growing body of evidence that there s “ an intimate relationship between the amount of sleep we get and our ability to main

3、tain a good , healthy body weight ”says sleep expert Helene Emsellem , director of the Center for Sleep and Wake Disorders in Chevy Chase , Maryland. （76） But Americans don t seem to be getting the message that we need sevento nine hours per night. More than 1 in 5 of us , according to a report form

4、 the Centers for DiseaseControl and Prevention , is getting six or fewer hours of sleep per night , on average.So how did researchers study fat cells in the Annals paper? Matthew Brady of the University of Chicago and a group of colleagues selected and persuaded seven volunteers to take part in the

5、research project. They were all young , thin and healthy and agreed to sleep for eight nights in a sleep lab. “ For four nights they were allowed to stay in bed for 8.5 hours a night ，” says Brady.Then , a month later , they came back for four additional nights but this time they were allowedjust 4.

6、5 hours of sleep per night. And after each visit , researchers got a sample of their fat.（77）Brady explains that the fat cells responded significantly to the loss of sleep. “I was very surprisedto be honest ，” he says.Bad things can happen when fat cells become less responsive to insulin. “Fat cells

7、 are actually your friend ，“ he says. “ They re there to store lipids（ 血脂）.” When lipids stay inside the cells，your body can utilize the fat when you re exercising or sleeping or going about your day.“ However ，when fat cells start to become insulin resistant ，the lipids start to leach out of the fa

8、tcells and rise in the bloodstream ，” Brady says.1.According to the passage ， lack of the sleep for a long while can probably lead to all of thefollowing EXCEPT .第一段最后一句A.heart disease B. weight gain C. diabetes D. liver disease2.The main idea of the third paragraph is . 第一句A.how to write a medical

9、research paper B. how to avoid sleep lossC. how the research was conducted D. how to conduct a medical experiment3.What does the word “leach ” in the last paragraph probably mean?A.Leap B. Lead. C. Lead. D. Leak .泄露4.Which of the following is NOT TRUE according to the passage?A.We will be in trouble

10、 if our fat cells become less responsive to insulin.B.More and more studies are done to study the link between sleep and weight.C.More than 20% of Americans are net getting enough sleep.D.Fat cells are there to help us maintain a good health.5.Which of the following is an appropriate title for this

11、passage?A.Poor Sleep May Lead to Too Much Stored Fat and DiseaseB.Sleep Experts Had Exciting Findings in a Fat StudyC.Americans Should Have More Than Six Hours of SleepD.Bad Things Happen if Fat Cells Become Our Friend这篇短文讲睡眠的重要性，不足的睡眠会引起种种不良的后果。76句的翻译是：但是美国人似乎仍不明白：我们每晚需要 7至9小时的睡眠77句的翻译是：布莱德解释说：脂肪细胞

12、对睡眠的减少会产生强烈的反应。1至5题的答案是：ACDDBPassage 2Questions 6 to 10 are based on the following passage:The top of the world is a wonderland. In winter, the temperature often falls to -30 T and thesun never rises. The ocean is surrounded by frozen ground. There are few people or trees, but to polar bears, the Ar

13、ctic （ 北极）is home.（78） Polar bears have thick fur , big paws and other features that make them well prepared for life in their tough environment. In fact , they need the Arctic sea ice for survival. Butclimate change is causing larger and larger areas of summer sea ice to melt （ 融化）.Experts saythat

14、if warming patterns continue , the Arctic could be free of summer sea ice by 2050.They maycause two-thirds of the world s 20,000 polar bears to be gone by then too.Polar bears can t survive for long on land. Seals are their main source of food. The only place where polar bears can hunt seals is on the ice. （79） Although these bears are strong swimmers, they are no match for lightning swift seals in the water. A polar bear has brilliantly cleverstrategies to overcome this disadvantage. In winter the bear