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考研数学三无穷级数常微分方程与差分方程二doc.docx

1、考研数学三无穷级数常微分方程与差分方程二doc考研数学三-无穷级数、常微分方程与差分方程(二)(总分:100.00,做题时间:90分钟)一、Section Use of Eng(总题数:1,分数:10.00)Whats your earliest childhood memory? Can you remember learning to walk? Or talk? The first time you heard thunder or watched a television program? Adults seldom (1) events much earlier than the y

2、ear or so before entering school, (2) children younger than three or four (3) retain any specific, personal experiences.A variety of explanations have been (4) by psychologists for this childhood amnesia. One argues that the hippo-campus; the region of the brain which is (5) for forming memories, do

3、es not mature until about the age of two. But the most popular theory (6) that, since adults dont think like children, they cannot (7) childhood memories. Adults think in words, and their life memories are like stories or (8) one event follows (9) as in a novel or film. But when they search through

4、their mental (10) for early childhood memories to add to this verbal life story, they dont find any that fit the (11) . Its like trying to find a Chinese word in an English dictionary.Now psychologist Annette Simms of the New York State University offers a new (12) for childhood amnesia. She argues

5、that there simply arent any early childhood memories to (13) . According to Dr. Simms, children need to learn to use someone elses spoken description of their personal (14) in order to turn their own short-term, quickly forgotten (15) of them into long-term memories. In other (16) , children have to

6、 talk about their experiences and hear others talk about (17) -Mother talking about the afternoon (18) looking for seashells at the beach or Dad asking them about their day at Ocean Park. Without this (19) reinforcement, says Dr. Simms, children cannot form (20) memories of their personal experience

7、s.Notes: childhood amnesia 儿童失忆症。(分数:10.00)(1).A figure B interpret C recall D affirm(分数:0.50)A.B.C.D.(2).A now that B even if C as though D just as(分数:0.50)A.B.C.D.(3).A largely B rarely C merely D really(分数:0.50)A.B.C.D.(4).A refuted B defied C proposed D witnessed(分数:0.50)A.B.C.D.(5).A responsibl

8、e B suitable C favorable D available(分数:0.50)A.B.C.D.(6).A declines B assesses C estimates D maintains(分数:0.50)A.B.C.D.(7).A reflect B attain C access D acquire(分数:0.50)A.B.C.D.(8).A narratives B forecasts C communications D descriptions(分数:0.50)A.B.C.D.(9).A the rest B another C the other D others(

9、分数:0.50)A.B.C.D.(10).A deposits B dreams C flashes D files(分数:0.50)A.B.C.D.(11).A model B pattern C frame D formula(分数:0.50)A.B.C.D.(12).A emphasis B assertion C explanation D assumption(分数:0.50)A.B.C.D.(13).A recall B remember C reflect D respond(分数:0.50)A.B.C.D.(14).A instincts B feelings C sensat

10、ions D experiences(分数:0.50)A.B.C.D.(15).A impressions B beliefs C minds D insights(分数:0.50)A.B.C.D.(16).A senses B cases C words D aspects(分数:0.50)A.B.C.D.(17).A him B their C it D them(分数:0.50)A.B.C.D.(18).A taken B utilized C applied D spent(分数:0.50)A.B.C.D.(19).A habitual B verbal C unique D part

11、icular(分数:0.50)A.B.C.D.(20).A permanent B mental C spiritual D conscious(分数:0.50)A.B.C.D.二、Section Reading Co(总题数:0,分数:0.00)三、Part A(总题数:0,分数:0.00)四、Text 1(总题数:1,分数:10.00)When Rupert Murdoch sees beams of light in the American advertising market, it is not necessarily time to reach for the sunglasse

12、s. Last October, when the impact of September 11th was only beginning to tell, the boss of NASCAR, a media group, had already identified strong rays of sunshine. With ad sales still languishing, Mr. Murdoch declared last month that there are some hints of a modest upswing in tile US advertising mark

13、et. His early optimism turned out to be misplaced. Now, however, other industry observers are beginning to agree with him.Advertising usually exaggerates the economic cycle, falling sharply and early in a downturn, and rebounding strongly once the economy has begun to recover. This is because most m

14、anagers prefer to trim their ad budgets rather than their payrolls, and restore such spending only once they feel sure that things are looking up. Last year, Americas ad market shrank by 9. 8% , according to CMIR, a research firm. Although ad spending has not yet recovered across all media, some ana

15、lysts now expect overall ad spending to start to grow in the third quarter.The signs of improvement are patchy, however. Ad spending on radio and television seems to be inching upadvertising on American National Radio was up 2% in January on the same period last year, according to Aegiswhile spending on m

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