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
Dogs were first domesticated from wolves at least 17,000 years ago, but perhaps as early as 150,000 years ago based upon recent
Dogs were first domesticated from wolves at least 17,000 years ago, but perhaps as early as 150,000 years ago based upon recent
admin
2011-04-04
56
问题
Dogs were first domesticated from wolves at least 17,000 years ago, but perhaps as early as 150,000 years ago based upon recent genetic fossil and DNA evidence. In this time, the dog has developed into hundreds of breeds with a great degree of【36】. For example, heights at the【37】range from just a few inches to roughly three feet, and colors range from white to black, with reds, grays, and browns【38】in tremendous patterns.
Dogs are highly social animals and this similarity in their【39】behavioral system accounts for their trainability, playfulness, and ability to fit into human【40】and social situations. This has earned dogs a unique position in the【41】of interspecies relationships. The loyalty and【42】that dogs demonstrate as a part of their natural instincts are【43】to be reflections of the human idea of love and friendship, leading many dog owners to view their pets as full-fledged family members.【44】. Dogs play a variety of roles in society and are often trained as working dogs.【45】. In many countries, the most common and perhaps most important role of dogs is as a companion.【46】.
Dogs were first domesticated from wolves at least 17,000 years ago, but perhaps as early as 150,000 years ago based upon recent genetic fossil and DNA evidence. In this time, the dog has developed into hundreds of breeds with a great degree of variation. For example, heights at the shoulder range from just a few inches to roughly three feet, and colors range from white to black, with reds, grays, and browns occurring in tremendous patterns.
Dogs are highly social animals and this similarity in their overall behavioral system accounts for their trainability, playfulness, and ability to fit into human households and social situations. This has earned dogs a unique position in the realm of interspecies relationships. The loyalty and devotion that dogs demonstrate as a part of their natural instincts are thought to be reflections of the human idea of love and friendship, leading many dog owners to view their pets as full-fledged family members. Dogs seem to view their human companions as members of their pack, and make few distinctions between their owners and fellow dogs. Dogs play a variety of roles in society and are often trained as working dogs. For dogs that do not have traditional jobs, a wide range of dog sports provide the opportunity to exhibit their natural dog skills. In many countries, the most common and perhaps most important role of dogs is as a companion. Dogs have lived with and worked with humans in so many roles that their loyalty has earned them the unique praise of man’s best friend.
选项
答案
overall
解析
由空前的their和空后的behavioral system可推测,所填词应是形容词。
转载请注明原文地址:https://kaotiyun.com/show/3ro7777K
0
大学英语六级
相关试题推荐
Wemustturntosomerecenthumaninventions______(为了完全理解这意味着什么).
Itisplaincommonsense—themorehappinessyoufeel,thelessunhappinessyouexperience.【C1】______,recentresearchrevealst
Itisplaincommonsense—themorehappinessyoufeel,thelessunhappinessyouexperience.【C1】______,recentresearchrevealst
Itisplaincommonsense—themorehappinessyoufeel,thelessunhappinessyouexperience.【C1】______,recentresearchrevealst
A、Heisgoodatdrawingpictures.B、Helikespicturesverymuch.C、Helikesvisitingtheartmuseumverymuch.D、Hethinksthea
A、Thevisitingeconomisthasgivenseverallectures.B、Dr.Johnsonandtheguestspeakerwereschoolmates.C、Dr.Johnsoninvited
A、It’sfartooexpensive.B、TheservicebetweenLondonandAberdeenisn’tfrequent.C、Shethinksit’sdangerous.D、Forsomereas
随机试题
女性,70岁,右下唇皮肤肿物不断增大半年,直径约1.5cm大小,半月来破溃出血。病理检查肿瘤细胞异型性明显,角化珠形成,浸润肌肉组织。符合该患者诊断的是
下列因素中可增加对比度的因素是
细菌抵御吞噬细胞吞噬的结构是
确定软件著作权归属的基本原则是()。
公民刘某,住所地为A县,公民王某,住所地为B县,公民周某,住所地为C县。刘某以王某侵犯房屋的所有权为由向法院提起诉讼,周某则主张其才是房屋的真正主人。诉讼所涉及的房屋坐落于D县。那么,你认为哪个法院有管辖权?()
施工单位在工程投标报价中应当包含安全生产费用,一般不低于工程造价的(),且不得作为竞争性条件。
BHJ集团公司主要业务包括高新园区的开发建设、管理服务,高新技术成果转化和高科技企业经营管理。经过10多年的发展,目前形成了以电子元器件、新材料生产为主体的高新技术产业群。公司成立初期,分配形式单一,薪酬长期处于低水平状态,内部差距不明显,以人定岗的现象十
在整个地图学史上,有效使用地图意味着看懂绘制在平面上的一系列抽象符号,然后将这些符号与当地环境的各种三维特征联系起来,从而成功地确定自己的位置。但这并不是所有普通人都能够做到的,而且不久之前,地图本身也还是一种稀缺的人工制品,有些地图还属于军事上敏感的机密
透明牙本质(transparentdentin)
深化行政体制改革,要按照建立中国特色社会主义行政体制目标推进,具体要求是
最新回复
(
0
)