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
Ecology is the science of how living creatures and plants exist together and depend on each other and on the local environment.
Ecology is the science of how living creatures and plants exist together and depend on each other and on the local environment.
admin
2022-02-12
58
问题
Ecology is the science of how living creatures and plants exist together and depend on each other and on the local environment. Where an environment is undisturbed, the ecology of an area is【C1】________ balance, but if a creature is exterminated (灭绝) or an alien (异类) species【C2】________, then the balance of nature will be【C3】________.
Man is a part of the【C4】________and has done more to upset the ecology during【C5】________short span on earth than【C6】________other living creature. He has done this by his ignorance, his【C7】________, his thoughtless foolishness and his uncontrolled wastefulness. He has poisoned the【C8】________and polluted both land and water. He has wasted the earth’s natural resources with no【C9】________for the future, and has thought out the most devastating ways of killing his fellow men and every other sort of life at the same time.
Since man has done so much【C10】________, it is【C11】________to man to try to put matters right—if it is not already too【C12】________.If there is to be any remedy for our ills, that remedy ultimately lies in the hands of the【C13】________, and the sooner they start doing something about it, the【C14】________.
One of the main【C15】________of the earth’s troubles is that the world is overpopulated and that this overpopulation is growing【C16】________an ever-increasing rate. At the same time we are【C17】________up our natural resources—fuels and mineral ores—at an ever-increasing speed with no hope of replacing them. For many years the earth has been unable to【C18】________enough food for these rapidly expanding populations and the position is steadily deteriorating【C19】________the fertility of some of our richest soils has been lost and vast areas that were【C20】________fertile lands have turned into barren deserts.
【C15】
选项
A、reasons
B、effects
C、causes
答案
C
解析
causes一般指客观原因,而reasons则表示主观原因,故应选前者;effects表示结果,故选C。
转载请注明原文地址:https://kaotiyun.com/show/YFtO777K
0
成人本科学位英语
相关试题推荐
TheexactnumberofEnglishwordsisnotknown.Thelargedictionarieshaveoverhalfamillionentries,butmanyofthesearec
InWesternculture,anengagementbeginswith"yes"toasimplequestion:"Willyoumarryme?"Theseheart-stoppingwordsoften
Helookedthroughthepagesofadvertisementstofindjobs______tocollegestudentsduringthesummerholidays.
Today,manypeoplearestarvingtodeath.Thereisashortageoffoodandtheavailablefoodistooexpensiveforhungrypeople
Sincethebeginningofhistory,manhasbeenattractedbytheideaoflivingforever,ofwinningthefightagainstdeathanddis
Televisionhaschangedthelifestyleofpeopleineveryindustrializedcountryintheworld.IntheUnitedStates,wheresociolo
SpeakerA:Hereareourticketsandpassports.We’reflyingtoAmsterdamtoday.SpeakerB:WelcometoYouth.Let’ssee...yes,
Mancannotgoonincreasinghisnumberatthepresentrate.Inthenext30yearsmanwillfaceaperiodofcrisis.Someexperts
Theyovercameallthedifficultiesandfulfilledtheplantendaysaheadofschedule,______wassomethingwehadnotexpected.
12支铅笔分给甲、乙、丙3个人,每个人都必须是偶数支铅笔且每个人至少得到2支,一共有多少种分配方法?
随机试题
患儿腰椎穿刺术后,去枕平卧6h的目的是防止出现
下列是SCL-90的症状维度,除了
李某花1.5万元购买了某股份公司发行的股票2000股,但该公司股票尚未上市。现李某欲退还已购股票。在下列哪些情况下李某可以要求发起人退股?
下列选型中,不属于GIS典型的网络分析功能的是()
施工单位应当在(),根据所承担的工程项目施工特点和范围,制定施工现场施工质量与安全事故应急预案,建立应急救援组织或配备应急救援人员并明确职责。
对于信用卡个人贷款和一般贷款业务,下列说法错误的是()。[2016年6月真题]
研究和确定物业服务收费标准,应当()
【2013福建】在韦纳归因理论的六个因素中,将成败归因于_______因素,最有利于学生向积极的方向发展。
下列选项中,属于事实行为的是()。
关于建设用地使用权,下列说法正确的是()
最新回复
(
0
)