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
Why would an animal kill itself? It seems a strange question, and yet it is one that has【B1】______some people for a long time. T
Why would an animal kill itself? It seems a strange question, and yet it is one that has【B1】______some people for a long time. T
admin
2015-07-04
41
问题
Why would an animal kill itself? It seems a strange question, and yet it is one that has【B1】______some people for a long time. The lemming (旅鼠) is one such animal. Lemmings periodically commit mass【B2】______, and no one knows just why!
The small【B3】______, which inhabit the Scandinavian mountains, sustain themselves on a diet of roots and live in nests they make underground. When their food supply is【B4】______large, the lemmings live a normal, undisturbed life.
However, when the lemmings’ food supply becomes too low to support the population, a singular【B5】______commences. The lemmings leave their nests all together at the same time, forming huge crowds. Great numbers of the lemmings begin a long and hard journey across the Scandinavian plains, a journey that may last weeks. The lemmings eat everything in their path, continuing their【B6】______march until they reach the sea.
The reason for what follows remains a mystery for zoologists and naturalists. Upon reaching the coast, the lemmings do not stop but swim by the thousands into the surf. Most【B7】______only a short time before they tire, sink, and drown.
A common theory for this unusual phenomenon is that the lemmings do not realize that the ocean is such【B8】______water. In their cross-country journey, the animals must traverse many smaller bodies of water, such as rivers and small lakes. They may【B9】______that the sea is just another such swimmable【B10】______. But no final answer has been found to the mystery.
【B9】
选项
答案
assume
解析
此空位于情态动词may之后,故应填入动词原形。assume意为“假定,认为”。
转载请注明原文地址:https://kaotiyun.com/show/w3Q7777K
0
大学英语六级
相关试题推荐
A、Shifttosomethingelse.B、Writeanythinginhismind.C、Asktheprofessorforhelp.D、Stopforalittlewhile.A对话中,女士说威尔森教授建
A、Afairytale.B、Ashortpoem.C、Alovestory.D、Adetectivestory.D对话开头,男士说自己完成了创意写作课程的故事,感觉很放松。女士表示自己还没有完成,她很乐意写侦探故事,故答案为D)。
A、ThetestisonlyheldinMay.B、Nancyshouldhavedonebetter.C、Thewomanishardtoplease.D、Hetookthetesttwoyearsago
A、Theprincipleoffunction.B、Theenclosingofspace.C、Protectingpeoplefrombeasts.D、Artisticexpression.B文章中提到Architectur
很多人选择在国外生活,这引起了人们极大的关注。今天,越来越多的人,特别是大量知识分子(intellectuals),移民到美国、英国和加拿大等发达国家。另外,很多在国外学习和工作的人都在为“绿卡”(greencards)而奋斗。造成这种现象的原因很多,其
A、Shedreamsofgraduating.B、Theyshouldjointhecelebration.C、Somesleepwillhelpthemalot.D、Theyshouldfocusontheex
A、Theinterviewersinagroupinterviewaretheretoassessyourworkingabilities.B、Yourunderstandingofthejobrequirements
A、Shespendstoomuchmoney.B、Shelikesmoneytoomuch.C、Sheenjoysgoingoutforshopping.D、Shelikestoargueaboutanythin
Musicians—fromkaraokesingerstoprofessionalviolinplayers—arebetterabletoheartargetedsoundsinanoisyenvironment,ac
A)Reduce,reuse,andrecycle.RecyclinghasbecomeapartofAmericanlife.Italsoisanimportantpartofthewaste-processing
随机试题
县级以上城市人民政府城市规划行政主管部门负责本行政区域内建设项目选址和布局的规划管理工作。城市规划行政主管部门在这项工作中,下列说法哪项是不准确?()
[背景资料]某市准备建设一座图书馆工程,建筑面积为8000m2,预计投资约1200万元,建设工期为12个月,工程采用公开招标方式确定承包商。建设单位为节约开支,决定自行招标,并向当地的建设行政主管部门提出招标申请,得到批准,建设单位依照法定程序进行公开
欺诈客户行为包括()。
王某某在集市上收购烟叶,因此王某某为烟叶税的纳税人。()
下列各项中,免征车船税的是()。
示范和领操的形式有_______、_______、_______、_______。
或许有人会认为人口多是环境资源压力的主要来源,可以说30年前我国开始实行计划生育的时候的确是这样,但是现在情况已经发生了改变。当前造成我国资源环境主要压力的已经不再是人口曾长,而是传统的经济增长方式。从现在看来,我们已经有足够的能力和办法来协调人口发展与资
藏羚羊是中国国家一级保护动物,主要分布在西藏、青海、新疆西部80多万平方公里的高寒荒漠地区,其中80%的区域在西藏羌塘境内。自20世纪80年代开始,由于受国际藏羚绒制品消费和非法贸易利益的驱使,青藏高原上的藏羚羊遭受了盗猎分子的大肆猎杀,种群数量急剧下降。
以下不属于英美法系特点的是:
Marywasinalatherwhensheheardthatshewouldbetransferredtoanotherdepartment.Theunderlinedpartmeans______.
最新回复
(
0
)