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
Mammals vary enormously in size, from weighing less than a penny to measuring more than three school buses in length. Some group
Mammals vary enormously in size, from weighing less than a penny to measuring more than three school buses in length. Some group
admin
2017-08-11
19
问题
Mammals vary enormously in size, from weighing less than a penny to measuring more than three school buses in length. Some groups of mammals have become very large, such as elephants and whales,【C1】______others have always been small, like primates. A new theory developed by an international team, led by Jordan Okie,【C2】______an explanation for why and how【C3】______groups of organisms are able to evolve【C4】______sizes, whereas others are not.
The research team【C5】______information on how quickly an individual animal grows and used it to【C6】______how large it may get【C7】______evolutionary time. Their research was published recently.
The new theory developed from the observation that some animals【C8】______fast and die young, while others take their time and mature much later. "Fast" animals-such as mice—breed very quickly, while humans mature slowly and are relatively older when they first have children. The theory【C9】______that those species that are relatively faster are more likely to evolve a large size quicker than slow species, and that their maximum size will be greater.
The research team tested their theory using the【C10】______records of mammals over the last 70 million years, examining the maximum size of each mammal group【C11】______that time, including whales, elephants, seals and primates. They found that their theory was very well【C12】______.
"Primates have evolved very slowly, and never got bigger than 1,000 pounds," said Okie, "The【C13】______was true of whales, which evolved their large size at the fastest【C14】______recorded."
The theory also makes predictions about the relative risks of extinction for large animals【C15】______small. The maximum size of an animal is limited by the rate of mortality in the【C16】______. Because larger animals【C17】______breed less frequently than smaller animals,【C18】______the mortality rate doubles, the maximum size is predicted to be 16 times smaller.
"This is a really surprising【C19】______," said Okie. "It points to another reason why many of the large animals went【C20】______after the last Ice Age, and their high risk of extinction in modern environments."
【C4】
选项
A、gigantic
B、tiny
C、slim
D、various
答案
A
解析
本空格需填入一个形容词修饰sizes,与上文提到的不同哺乳动物体型有大有小相对应,所以只能选择表示大小的形容词,分别对应上文的large和small。另外谓语部分是are able to evolve“能够进化”,根据常识可知,动物进化的过程是由小型进化成大型的,所以A项gigantic“巨大的”符合语义逻辑。
转载请注明原文地址:https://jikaoti.com/ti/Bpr7FFFM
0
考研英语一
相关试题推荐
Formanandwomenunder30,smokingdoesnotpreventtypicalage-relatedweightgain,accordingtoastudyofnearly4,000white
TheUnitedStateseconomyproducedroughly$15trillionworthofgoodsandservicesin2008,makingiteasilythelargestinthe
Recentyearshavebroughtminority—ownedbusinessesintheUnitedStatesnotonlyunprecedentedopportunitiesbutalsonewands
Theideaisasaudaciousasitaltruistic:provideapersonallaptopcomputertoeveryschoolchild—particularlyinthepoorestp
Theideaisasaudaciousasitaltruistic:provideapersonallaptopcomputertoeveryschoolchild—particularlyinthepoorestp
Expectationssurroundingeducationhavespunoutofcontrol.Ontopofaseven-hourschoolday,ourkidsmarchthroughhoursof
Optimistsoutlivepessimists,anewstudyshows.Ofnearly100,000women【C1】______intheWomen’sHealthInitiative,thosewhoga
Optimistsoutlivepessimists,anewstudyshows.Ofnearly100,000women【C1】______intheWomen’sHealthInitiative,thosewhoga
Optimistsoutlivepessimists,anewstudyshows.Ofnearly100,000women【C1】______intheWomen’sHealthInitiative,thosewhoga
Optimistsoutlivepessimists,anewstudyshows.Ofnearly100,000women【C1】______intheWomen’sHealthInitiative,thosewhoga
随机试题
一种经验的学习对另一种学习起促进作用的是()。
在Access2010数据表中,要存储员工上下班打卡的日期和时间,应采用_____数据类型的字段。
A.1.27~2.35kPaB.2.94kPaC.2.94~4.90kfaD.2.45kPaE.1.76kPa诊断门静脉高压症时。门静脉压力至少到达
消化性溃疡病人在何种条件下疼痛节律会改变或消失
腹部叩及移动性浊音,标志腹腔积血在
[背景资料]某施工单位承包了东风水库工程施工,制定的施工方案中部分内容如下:(1)水库大坝施工采用全段围堰法导流。相关工作内容有:①截流;②围堰填筑;③围堰拆除;④导流隧洞开挖;⑤下闸蓄水;⑥基坑排水;⑦坝体填筑。(2)岸坡石方开挖采用
2016年印发《银行业金融机构全面风险管理指引》,将()列入银行业全面风险管理体系十大风险。
参加中国人民政治协商会议的人民团体,包括()。
Energywillbeoneofthedefiningissuesofthiscentury.Onethingisclear:theeraof(1)_____Oilisover.Whatwealldon
以下关于企业应用集成的叙述中,正确的是(37)。
最新回复
(
0
)