director of the Alzheimer's Disease Research Center at Columbia University Medical Center. Small said that even more important, the new study offers the first direct evidence that memory deteriorates with age because of changes in the dentate gyrus(齿状圆),a region of the hippocampus(海马). Previous studies had shown a link between changes in this region of the brain and normal, age-related memory loss, but the Columbia University study asserts a causal link. The study involved 37 healthy subjects who ranged in age from 50 to 69. Researchers said that if a person had the memory of a typical 60-year-old at the beginning of the study, on average that person's memory would function more like a30-or 40-year-old's after three months of being given a high-flavanol diet, consuming 900 milligrams a day. Small said the typical candy bar contains only about 40m g of flavanols. The researchers also cautioned that more work is needed because of the study's small sample size. The compound appears to enhance connectivity and metabolic activity in the dentate gyrus. Aging appears to reduce the connections between neurons in that part of the brain. That decline, according to Small, however, is not related to severe memory loss and cell death in Alzheimer's disease or other dementias(痴呆). 4/5 34. Future research that serves as an improvement over the new study mentioned in the passage may be a study that _. A tests more 30-or 40-year-old subjects B lasts for a period longer than three months C uses a diet with a larger amount of chocolate D contains a larger number of older subjects

Which of the following statements about benign tumors are true?A. They can be removed surgically.B. They do not metastasize to other parts of the body.C. They can cause serious health problems if they grow large.D. They are always cancerous.

Directions: Fill in the blanks with the words / expressions in the box. Change the form when necessary. You may not use any of the words / expressions more than once.crucial harvest stumble engage incomingaccess straightforward leisurely epidemic practically11. We all need to forgive others, because we all ________ 11 ________ and fail and require help from others after failure.12. There is no ________ 12 ________ equivalence between economic progress and social well-being.13. When crops ripen in the autumn, fields turn entirely golden. People celebrates the good ________ 13 ________ happily.14. While many of these statements might be true, they are ________ 14 ________ impossible to prove scientifically.15. The threat of a flu ________ 15 ________ is one of many problems facing scientists and public health authorities.16. Certainly, the early learning years are ________ 16 ________ to a child's educational development.17. People walked and talked ________ 17 ________ as if they were still living in an ancient village.18. The company is ________ 18 ________ in the extensive search for a product that will lead the market.19. The diploma course would offer remote ________ 19 ________ to course materials via the Internet.20. It can automatically identify your important ________ 20 ________ messages and separate them out from everything else.

Creativity has been considered in terms of process, product or person, and has been defined as the interpersonal and intrapersonal (self) process by means of which original, high quality, and genuinely significant products are developed. In dealing with young children, the focus should be on the process, i.e., developing and generating original ideas, which is seen as the basis of creative potential. When trying to understand this process, it is helpful to consider the differentiation between convergent and divergent thought. Problems associated with convergent thought often have one correct solution. But problems associated with divergent thought require the problem-solver to generate many solutions, a few of which will be novel and workable—hence creative.61.What should be paid attention to in terms of young children's creativity development?A Their intelligence and talent.B Better understanding of their creative potential.C Their process of developing original ideas.D Mastery of a higher degree of technical skills.

这个国度创造了很多奇迹，例如长城，敦煌莫高窟，兵马俑还有功夫。The country ___, such as the Great Wall, Mogao Grottoes in Dunhuang,Terracotta Warriors and ___.

单选题（共25题，50.0分）题型说明：该部分1-10题为听力选择题；11-20题为词汇语法选择题；21-25题为翻译选择题；请选出最佳答案11. (2.0分) It suddenly____to me that I hadleft mykeys in the office.A thoughtB existedC occurredD consider

He said he cared for his health but his actions____his words.A. executedB. controlledC. decreasedD. contradicted

abundantA. vi.解决；定居B. adj.丰富的C. n.插头 vt.插入D. n.气候

69. 【单选题（4选1）】tunnelA. n. 精力；活力；热情B. n. 风趣，机智，智慧C. vt. 包；裹；覆盖D. n. 隧道；地道

The output of an OR gate is true only if all the inputs are true.A. 正确B. 错误

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