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
An animal species becomes extinct when it fails to produce enough young in each generation to keep pace with the death-rate. We
An animal species becomes extinct when it fails to produce enough young in each generation to keep pace with the death-rate. We
admin
2011-03-01
52
问题
An animal species becomes extinct when it fails to produce enough young in each generation to keep pace with the death-rate. We can【C1】______from fossil evidence in rocks that many living species have become extinct over the millions of years【C2】______life began. It is a natural【C3】______and extinction is the【C4】______of any animal that has specialized too far to change【C5】______its environment changes, or has to compete with a better-【C6】______and more powerful animal.【C7】______remarkable technical developments during the past few centuries, man has destroyed or【C8】______destroyed some species by killing them【C9】______such a rate that they couldn’t produce enough offspring, or by completely changing their natural environment at surprising speed.
A number of examples can be given of the way【C10】______which natural environments are being rapidly changed—Amazonia, for instance. There is every【C11】______that many species of animals will be made extinct because of these and similar【C12】______of natural vegetation. Large numbers of animals have been hunted and killed for food. The North American buffalo is a【C13】______of the near-extinction of a species through hunting. Often the numbers are【C14】______great that the hunters may not realize the danger. But even when the danger is widely【C15】______, the financial rewards for the hunters may be so great that they choose to【C16】______the threat to the species. Attitudes like this have【C17】______to hunters killing animals for furs, for ivory or merely for ornaments. A slight【C18】______on this is when tourists hunt animals for trophies. Such magnificent creatures【C19】______lions and tigers【C20】______out of existence in some parts of the world.
【C12】
选项
A、emptiness
B、existence
C、clearances
D、plantation
答案
C
解析
自然植被遭破坏经历一个从有到无的过程,只有clearances (一扫而光)能传神表达出来。
转载请注明原文地址:https://kaotiyun.com/show/psjd777K
本试题收录于:
公共英语三级笔试题库公共英语(PETS)分类
0
公共英语三级笔试
公共英语(PETS)
相关试题推荐
Howdoesthewomanfeelattheendoftheconversation?
AspeciallabattheUniversityofChicagoisbusyonly【C1】______Itisadream【C2】______whereresearchersareatwork【C3】______d
AspeciallabattheUniversityofChicagoisbusyonly【C1】______Itisadream【C2】______whereresearchersareatwork【C3】______d
AspeciallabattheUniversityofChicagoisbusyonly【C1】______Itisadream【C2】______whereresearchersareatwork【C3】______d
ThenumberkilledintheBradfordCityfootballgrounddisasterhasrisento52;morethan70policeandspectatorshavealsobe
Theevolutionofartificialintelligenceisnowproceedingsorapidlythat【C1】______theendofthecenturycheapcomputers【C2】__
Whatisthepurposeofthispassage?
SouthDakotarankscompletelythelastinaverageteachersalaryand42ndinthespendingperpupil.Butits1989AmericanColle
Weshouldalsoknowthat"greed"islittlerelatedtotheenvironmentalcrisis.Thetwomainfactorsarepopulationpressures,e
Manyteachersbelievethattheresponsibilitiesforlearningliewiththestudents.【C1】______alongreadingassignmentisgiven,
随机试题
心脏杂音强度取决于【】
X线影像信息传递过程中,作为信息源的是
健康成人牙槽嵴顶端位置
重置全价的确定一般可以采用()等。
投保人根据( )向保险人支付保险费。
D公司是深圳证券交易所上市公司,目前总股本5000万元,每股面值1元。股东大会通过决议,拟10股配2股,配股价26元/股,配股除权日期定为2012年3月12日。假定配股前每股价格为32元,不考虑新投资的净现值引起的企业价值的变化。要求:如果把配股改为
下列行为中,不构成代理的是()。
根据所给材料,回答问题。网络时代巨大的信息量要求网络人际交流迅速快捷,此时,传统语言的表达已不足以将信息转变成最简洁的形式输入输出。于是网络语言应运而生。这种语言以轻松活泼、幽默风趣、戏谑调侃的面目出没于传统媒体,让人耳目一新。比如“美眉”指年轻
党的十八届五中全会坚持以人民为中心的发展思想,鲜明提出了创新、协调、绿色、开放、共享的新发展理念。其中,中国特色社会主义的本质要求是()。
中国自主研发的3G通信标准是(70)。
最新回复
(
0
)