首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Working a typewriter by touch, like riding a bicycle or strolling on a path, is best done by not giving it a glancing thought. O
Working a typewriter by touch, like riding a bicycle or strolling on a path, is best done by not giving it a glancing thought. O
admin
2015-10-21
43
问题
Working a typewriter by touch, like riding a bicycle or strolling on a path, is best done by not giving it a glancing thought. Once you do, your fingers fumble and hit the wrong keys. To do things involving practiced skills, you need to turn loose the systems of muscles and nerves responsible for each maneuver, place them on their own, and stay out of it. There is no real loss of authority in this, since you get to decide whether to do the thing or not, and you can intervene and embellish the technique any time you like; if you want to ride a bicycle backward, or walk with an eccentric loping gait giving a little skip every fourth step, whistling at the same time, you can do that. But if you concentrate your attention on the details, keeping in touch with each muscle, thrusting yourself into a free fall with each step and catching yourself at the last moment by sticking out the other foot in time to break the fall, you will end up immobilized, vibrating with fatigue.
It is a blessing to have options for choice and change in the learning of such unconsciously coordinated acts. If we were born with all these knacks inbuilt, automated like ants, we would surely miss the variety. It would be a less interesting world if we all walked and skipped alike, and never fell from bicycles. If we were all genetically programmed to play the piano deftly from birth, we might never learn to understand music.
The rules are different for the complicated, coordinated, fantastically skilled manipulations we perform with our insides. We do not have to learn anything. Our smooth-muscle cells are born with complete instructions, in need of no help from us, and they work away on their own schedules, modulating the lumen of blood vessels, moving things through intestines. Secretary cells elaborate their products in privacy; the heart contracts and relaxes; cells communicate with each other by simply touching; all this goes on continually, without ever a personal word from us. The arrangement is that of an ecosystem, with the operation of each part being governed by the state and function of all the other parts. When things are going well, as they generally are, it is an infallible mechanism.
But now the autonomy of this interior domain, long regarded as inviolate, is open to question. The experimental psychologists have recently found that visceral organs can be taught to do various things, as easily as a boy learns to ride a bicycle, by the instrumental techniques of operant conditioning. If a thing is done in the way the teacher wants, at a signal, and a suitable reward given immediately to reinforce the action, it becomes learned. Rats, rewarded by stimulation of their cerebral "pleasure centers", have been instructed to speed up or slow down their hearts at a signal, or to alter their blood pressures, or switch off certain waves in their electroencephalograms and switch on others.
The same technology has been applied to human beings, with other kinds of rewards, and the results have been startling. It is claimed that you can teach your kidneys to change the rate of urine formation, raise or lower your blood pressure, change your heart rate, write different brain waves, at will.
There is already talk of a breakthrough in the prevention and treatment of human disease. According to proponents, when the technology is perfected and extended it will surely lead to new possibilities for therapy. If a rat can be trained to dilate the blood vessels of one of his ears more than those of the other, as has been reported, what rich experiences in self-control and self-operation may lie just ahead for man? There are already cryptic advertisements in the personal columns of literary magazines, urging the purchase of electronic headsets for the training and regulation of one’s own brain waves, according to one’s taste.
You can have it. Not to downgrade it. It is extremely important, I know, and one ought to feel elated by the prospect of taking personal charge, calling the shots, running one’s cells around like toy trains. Now that we know that viscera can be taught, the thought comes naturally that we’ve been neglecting them all these years, and by judicious application of human intelligence, these primitive structures can be trained to whatever standards of behavior we wish to set for them.
The author’s attitude towards the technique of training man’s body can best be defined as
选项
A、ambiguous
B、skeptical
C、contemptuous
D、positive
答案
D
解析
态度题。末段指出:你可以做到。不要贬低它。我知道这极为重要,人们应该为这一前景感到高兴……既然我们知道内脏可以训练,这自然就意味着这些年我们对它们有所忽略。再加上充满人类智慧的明智之举,这些原始结构可以通过训练做我们想让它们做的任何事情。从文中的“notto downgrade”“extremely important”“feel elated”等都可以看出作者对训练身体内脏器官的看法是积极的,故[D]为答案。
转载请注明原文地址:https://kaotiyun.com/show/fTKO777K
0
专业英语八级
相关试题推荐
A、Hehadonlybeendrivingfiftyyardsonthemainroad.B、Hehadjustcomeoutintothemainroad.C、Hehadstoppedfiftyyards
Wecomeindifferentcolors:red,black,white,yellowandbrown,haveavarietyofpoliticalsystems,socialsystems,religious
In17th-centuryNewEngland,almosteveryonebelievedinwitches.Strugglingtosurviveinavastandsometimesunforgivingland
TheJourneyofSelfImprovementI.PhasesofthejourneyofselfimprovementA.Thefirstphase:relyingon【B1】______,speakers
MeaninginLiteratureInreadingliteraryworks,weareconcernedwiththe’meaning’ofoneliterarypieceoranother.Howev
HowtoPresentaSeminarPaperUniversitystudentsoftenattendmanyseminarsforvarioussubjects,thereforeitisusefulf
Working-classfamiliesintheUnitedStatesareusuallynuclear,andmanystudiesindicatethatworking-classcouplesmarryfor
OnaLosAngelesstreetcornerin2000,Iwasthe"insideman"inaclassiccongamecalledthepigeondrop.AmagiciannamedDa
Mycar’sgearleverdoesmorethandispensetransmissionrations.Itpanderstome.Itcajolesandbeckons.Itwearsoutitschr
Languagepervadessociallife.Itistheprincipalvehicleforthetransmissionofculturalknowledge,andtheprimarymeansby
随机试题
某施工企业的一台机械设备按工作量法计提折旧。该设备原价30000元,预计净残值率5%,可工作500个台班时数。投入使用后,各年的实际工作台班数为:第1年200个小时,第2年150个小时,第3年150个小时。下列资产中可以计提折旧的有()。
()是利用收益率曲线在部分年期段快速下降的特点,买入年期即将退化的债券品种,等待其收益率出现快速下滑时,产生较好的市场价差回报。
某公司2018年度营业收入净额为1320万元,资产负债表中,2018年应收账款平均余额为110万元。另外,补充资料显示,2018年的坏账准备平均余额为10万元。假定1年有360天。则该公司2018年应收账款周转天数为()天。
按照随机模式,确定现金存量的下限时,应考虑的因素有()。
Themeasureofaman’scharacteriswhathewoulddoitheknewhewouldneverbefoundout.
对于自诉案件中“被害人有证据证明的轻微刑事案件”,下列说法正确的是()。
有关腺瘤的说法,下列哪些是正确的
【F1】JapansaidTuesdayithadsuccessfullyextractedmethanehydrate,knownas"fireice",fromitsseabed,possiblyunlockingm
ATheOrganizationofAnArticleBCheckYourReadingSpeedCAWaytoIncreaseYourReadingSpeedDCheckYourUnderstandin
InthegrandschemeofthingsJeremyBenthamandJohnStuartMillarenormallythoughtofasgoodguys.Betweenthem,theycame
最新回复
(
0
)