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
In the past few decades, remarkable findings have been made in ethology, the study of animal social behavior. Earlier scientists
In the past few decades, remarkable findings have been made in ethology, the study of animal social behavior. Earlier scientists
admin
2011-05-29
62
问题
In the past few decades, remarkable findings have been made in ethology, the study of animal social behavior. Earlier scientists had【21】that nonhuman social life was almost totally instinctive or fixed by genetics. Much more careful observation has shown that【22】variation occurs among the social ties of most species, showing that [earning is a part of social life. That is, the【23】are not solely fixed by the genes.【24】, the learning that occurs is often at an early age in a process that is called imprinting. Imprinting is clearly【25】instinctive, but it is not quite like the learning of humans, it is something in between the two. An illustration best【26】the nature of imprinting. Once, biologists thought that ducklings followed the mother duck because of instincts. Now we know that. shortly【27】they hatch, ducklings fix【28】any object about the size of a duck and will henceforth follow it. So ducklings may follow a basketball or a briefcase if these are【29】 for the mother duck at the time when imprinting occurs. Thus, social ties can be considerably【30】, even ones that have a considerable base【31】by genetics.
Even among the social insects something like imprinting【32】influence social behavior. For example, biologists once thought bees communicated with others purely【33】instinct. But, in examining a "dance" that bees do to indicate the distance and direction of a pollen source, observers found that bees raised in isolation could not communicate effectively. At a higher level, the genetic base seems to be much more for an all-purpose learning rather than the more specific responses of imprinting. Chimpanzees, for instance, generally【34】very good mother but Jane Goodall reports that some chimps carry the infant. upside down or【35】fail to nurture the young.
选项
A、varied
B、deviated
C、differed
D、altered
答案
D
解析
D项alter,意为“改变,更改”,相当于change,符合题意。A项vary意为“变化,使不同(强调范围变化)”,vary from...to...意为“从……到……不等,在……到……之间”,例如:The temperature varies from time to time.温度常常变化。B项deviate意为“越出正轨,违反”。C项differ意为“使相异”。
转载请注明原文地址:https://kaotiyun.com/show/I96O777K
0
考博英语
相关试题推荐
Imtexcalled—theirorderisn’tdueuntilnextmonth,butthey’dliketopicksamplesupearlierifpossible.Imtexwantsto
Areyoualwayssureyouknowwhatpeoplemeanwhentheytrytodescribetheirfeelingstoyou?Weusebothwordsandgesturesto
Theevolutionofsexratioshasproduced,inmostplantsandanimalswithseparatesexes,approximatelyequalnumbersofmalesa
TheGreek’sloftyattitudetowardscientificresearch—andthescientists’contemptofutility—wasalongtimedying.Foramill
TheBasisforSocialOrderMan,saidAristotle,isasocialanimal.Thissociabilityrequirespeacefulcongregation,andthe
Thecommitteereporteditsfindingsafterathoroughinvestigation.
Humanfacialexpressionsdifferfromthoseofanimalsinthedegreetowhichtheycanbe______controlledandmodified.
随机试题
教学的特殊组织形式()
女性,60岁,因结肠癌入院。化验:血红蛋白60g/L。为纠正贫血术前输血200ml,病人皮肤出现红斑伴瘙痒,应采取的治疗措施是
当归补血汤的功用是()
下列关于手工会计核算会计数据处理流程的表述,正确的有()。
A公司是一家电力企业,决定开展风能发电。下列选项中,属于限制该企业发展且有待改正的消极方面是()。
自80年代,研究有了跃升,从偏重于物质与能量代谢的研究进入到对生物信号在细胞内传递的物质基础、途径和方式的研究,信息代谢研究成为主要路径。三位美国科学家发现一氧化氮(NO)也是信号分子(此前所知的信号分子均是有机化合物),证明NO是血管系统和中枢神经系统
“描神画鬼,毫无对证,本可以专靠神思,所谓‘天马行空’地挥写了,然而他们写出来的却只是三只眼、长颈子,也就是正常的人体身上增加了眼睛一只,拉长了颈子二三尺而已。”鲁迅先生的这番话表明,人们头脑中的鬼神观念是()。 ①鬼神形象在人们头
A、需求不确定性高的B、需求确定的C、管理信息D、实时A原型化方法适用于需求不确定性高的系统。
使用VC6打开考生文件夹proj2下的工程proj2,其中有两个类:一是销售类(sale),用于表示按照。件商品的基本价格进行销售;另一个是打折销售类(DiscountSale),用于表示在基本价格基础上按一个折扣比例进行销售。DiscountSale类继
Thereisnodenyingthatstudentsshouldlearnsomethingabouthowcomputerswork,justasweexpectthematleasttounderstan
最新回复
(
0
)