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
考研
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
2018-04-27
69
问题
In the past few decades, remarkable findings have been made in ethology, the study of animal social behavior. Earlier scientists had【B1】______that nonhuman social life was almost totally instinctive or fixed by genetics. Much more careful observation has shown that 【B2】______ variation occurs among the social ties of most species, showing that learning is a part of social life. That is, the【B3】______are not solely fixed by the genes.
【B4】______, the learning that occurs is often at an early age in a process that is called imprinting. Imprinting is clearly 【B5】______ instinctive, but it is not quite like the learning of humans; it is something in between the two. An illustration best【B6】______the nature of imprinting. Once, biologists thought that ducklings followed the mother duck because of instincts. Now we know that, shortly 【B7】______ they hatch, ducklings fix 【B8】______ 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 【B9】______ for the mother duck at the time when imprinting occurs. Thus, social ties can be considerably【B10】______, even ones that have a considerable base【B11】______by genetics.
Even among the social insects something like imprinting【B12】______influence social behavior. For example, biologists once thought bees communicated with others purely【B13】______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【B14】______very good mother but Jane Goodall reports that some chimps carry the infant upside down or【B15】______fail to nurture the young. She believes that these females were the youngest or the 【B16】______ child of a mother. In such circumstances, they did not have the opportunity to observe how their own mother【B17】______for her young. Certainly adolescent chimps who are still with their mothers when other young are born take much interest in the rearing of their young brother or sister. They have an excellent opportunity to learn, and the social ties that are created between mother and young 【B18】______ Goodall to describe the social unit as a family. The mother offspring tie is beyond 【B19】______; there is some evidence to 【B20】______ that ties also continue between siblings of the same sex, that is "brother-brother" and "sister-sister".
【B13】
选项
A、by
B、out of
C、from
D、through
答案
A
解析
考查固定搭配。by instinct为固定用法,意思是“出于本能”。故选A.by。
转载请注明原文地址:https://kaotiyun.com/show/3B6Z777K
0
考研英语一
相关试题推荐
Whilestillcatchinguptomeninsomefieldsofmodernlife,womenappeartobefaraheadinatleastoneundesirableaspect."
Collegestudentsaremorestressedoutthaneverbefore—atleastaccordingtothelatestfindingsofalarge,nationalsurveyth
Collegestudentsaremorestressedoutthaneverbefore—atleastaccordingtothelatestfindingsofalarge,nationalsurveyth
Collegestudentsaremorestressedoutthaneverbefore—atleastaccordingtothelatestfindingsofalarge,nationalsurveyth
AsValentine’sDayapproaches,manysinglepeoplebegintofeelalittlesorryforthemselves.Onaday【C1】______bycouples,thi
Itisacommonplaceamongmoraliststhatyoucannotgethappinessbypursuingit.Thisisonlytrueifyoupursueit【C1】______.
Itisacommonplaceamongmoraliststhatyoucannotgethappinessbypursuingit.Thisisonlytrueifyoupursueit【C1】______.
NowthatwearefairlysurethattherearemanyEarth-likeplanetsintheGalaxy,thetimeisripe(oralmostso)towonderwhet
NowthatwearefairlysurethattherearemanyEarth-likeplanetsintheGalaxy,thetimeisripe(oralmostso)towonderwhet
随机试题
下列哪项不是肝功能不全的表现
输血的适应证不包括()
急性脑病综合征最基本的症状有
房地产经纪人客户开发方法有()。
冻结排桩法深基坑支护技术的主要特点有()。
货币的时间价值表明,一定量的货币距离终值时间越远,利率越高,终值越大;一定数量的未来收入距离当期时间越近,贴现率越高,现值越小。()
下列属于对特定人群社会保护的是()。
Engineeringstudentsaresupposedtobeexamplesofpracticalityandrationality,butwhenitcomestomycollegeeducationIam
BSP强调向管理人员进行调查,因为管理部门对系统的要求是BSP方法的出发点,其目的是()。Ⅰ.核实已有资料Ⅱ.了解企业发展方向Ⅲ.确定存在的问题Ⅳ.寻找解决问题的方法
情景:假如你叫王林,你向你的朋友丁介绍你在北京旅游的事。任务:1.我游览了北京。2.北京变化很大。3.王府井有很多现代化的建筑,街道很美。4.北京人正在准备迎接2008年奥运会。5.我希望再次来北京玩。信请用下面格式。DearDing,
最新回复
(
0
)