【考研类试卷】考研英语259及答案解析.doc
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1、考研英语 259 及答案解析(总分:36.00,做题时间:180 分钟)一、Section Use of (总题数:1,分数:1.00)News reports often focus on disputes among scientists over the validity of preliminary (untested) data, hypotheses, and models (which by definition are tentative). This aspect of science- 1 because it has not been widely 2 and accep
2、ted-is called frontier science. The media 3 to focus on frontier science because its so-called “breakthroughs“ make good news stories. Just because something is in the 4 of frontier science, 5 , does not mean that it isnt worthy of serious consideration; 6 , such matters need further study to determ
3、ine their 7 . 8 contrast, consensus science consists of data, models, theories, and laws that are widely accepted. This aspect of science is very reliable but is 9 considered newsworthy. The trouble is that the word science is used to 10 both frontier and consensus science, without 11 The media pref
4、erence 12 frontier science gives the public the 13 impression that frontier science 14 very certain conclusions, which may or may not be correct. However, 15 some frontier science is later shown to be unreliable, members of the public often falsely 16 that consensus science is also quite uncertain.
5、We need to take both frontier and consensus science 17 but recognize their differences. One way to find out what scientists generally agree 18 is to seek out reports by scientific bodies that attempt to 19 consensus in 20 areas of science and technology. (分数:1.00)(1).News reports often focus on disp
6、utes among scientists over the validity of preliminary (untested) data, hypotheses, and models (which by definition are tentative). This aspect of science- 1 because it has not been widely 2 and accepted-is called frontier science. The media 3 to focus on frontier science because its so-called “brea
7、kthroughs“ make good news stories. Just because something is in the 4 of frontier science, 5 , does not mean that it isnt worthy of serious consideration; 6 , such matters need further study to determine their 7 . 8 contrast, consensus science consists of data, models, theories, and laws that are wi
8、dely accepted. This aspect of science is very reliable but is 9 considered newsworthy. The trouble is that the word science is used to 10 both frontier and consensus science, without 11 The media preference 12 frontier science gives the public the 13 impression that frontier science 14 very certain
9、conclusions, which may or may not be correct. However, 15 some frontier science is later shown to be unreliable, members of the public often falsely 16 that consensus science is also quite uncertain. We need to take both frontier and consensus science 17 but recognize their differences. One way to f
10、ind out what scientists generally agree 18 is to seek out reports by scientific bodies that attempt to 19 consensus in 20 areas of science and technology. (分数:0.05)A.controversialB.suspiciousC.debatableD.untrustworthyA.checkedB.testedC.approvedD.confirmedA.therebyB.howeverC.moreoverD.notwithstanding
11、A.ratherB.otherwiseC.anywayD.thereforeA.integrityB.availabilityC.reliabilityD.stabilityA.ByB.ToC.OnD.InA.merelyB.oddlyC.fairlyD.rarelyA.referB.indicateC.modifyD.describeA.discriminationB.distinctionC.exceptionD.presumptionA.toB.onC.forD.withA.fancyB.falseC.vividD.virtualA.presentsB.reachesC.provides
12、D.grantsA.preferB.temptC.intendD.tendA.untilB.unlessC.whenD.whileA.imagineB.concludeC.predictD.perceiveA.identicallyB.uniformlyC.cautiouslyD.seriouslyA.onB.toC.withD.inA.summarizeB.systematizeC.recognizeD.revitalizeA.latentB.intactC.oddD.keyA.hedgeB.circleC.realmD.scope二、Section Writing(总题数:1,分数:1.0
13、0)1.Study the following picture carefully and write an essay in which you should 1) describe the picture, 2) interpret its implications in life, and 3) support your view with examples. You should write about 160-200 words neatly on ANSWER SHEET 2. (20 points) Study the following picture carefully an
14、d write an essay in which you should 1) describe the picture, 2) interpret its implications in life, and 3) support your view with examples. You should write about 160-200 words neatly on ANSWER SHEET 2. (20 points) *(分数:1.00)_三、Section Reading(总题数:4,分数:4.00)The immune system is equal in complexity
15、to the combined intricacies of the brain and nervous system. The success of the immune system in defending the body relies on a dynamic regulatory communications network consisting of millions and millions of cells. Organized into sets and subsets, these cells pass information back and forth like cl
16、ouds of bees swarming around a hive. The result is a sensitive system of checks and balances that produces an immune response that is prompt, appropriate, effective and self-limiting. At the heart of the immune system is the ability to distinguish between self and non-self. When immune defenders enc
17、ounter cells or organisms carrying foreign or non-self molecules, the immune troops move quickly to eliminate the invaders. Virtually every body cell carries distinctive molecules that identify it as self. The bodys immune defenses do not normally attack tissues that carry a self marker. Rather, imm
18、une cells and other body cells coexist peaceably in a state known as self-tolerance. When a normally functioning immune system attacks a non-self molecule, the system has the ability to remember the specifics of the foreign body. Upon subsequent encounters with the same species of molecules, the imm
19、une system reacts accordingly. With the possible exception of antibodies passed during lactation ( 哺乳期 ), this so-called immune system memory is not inherited. Despite the occurrence of a virus in your family, your immune system must learn from experience with the many millions of distinctive non-se
20、lf molecules in the sea of microbes in which we live. Learning necessitates producing the appropriate molecules and cells to match up with and counteract each non-self invader. Any substance capable of stimulating an immune response is called an antigen. Tissues or cells from another individual (exc
21、ept an identical twin, whose cells carry identical self-markers ) act as antigens; because the immune system recognizes transplanted tissues as foreign, it rejects them. The body will even reject nourishing proteins unless they are first broken down by the digestive system into their primary, non-an
22、tigenic building blocks. An antigen announces its foreignness by means of intricate and characteristic shapes called epitopes( 抗原决定基), which stick out from its surface. Most antigens, even the simplest microbes, carry several different kinds of epitopes on their surface, some may even carry several
23、hundred. Some epitopes will be more effective than others at stimulating an immune response. Only in abnormal situations does the immune system wrongly identify self as non-self and execute a misdirected immune attack. The result can be so-called autoimmune disease. The painful side effects of these
24、 diseases are caused by a persons immune system actually attacking itself (分数:1.00)(1).We know from the text that the immune system(分数:0.20)A.is no less complicated than the nervous system.B.far exceeds the human brain in intricacy.C.is surrounded by numerous sensitive cells.D.results in an effectiv
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- 考研 试卷 英语 259 答案 解析 DOC
