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
A、When the ecological balance of the river is lost. B、When people consume more fish than they used to. C、When large numbers of a
A、When the ecological balance of the river is lost. B、When people consume more fish than they used to. C、When large numbers of a
admin
2013-05-19
40
问题
Throughout history man has changed his physical environment in order to improve his way of life. With the tools of technology he has altered many physical features of the earth. He has transformed wood lands into farmland, and made lakes and reservoirs out of rivers for irrigation purposes or hydroelectric power. Man has also modified the face of the earth by draining marshes and cutting through mountains to build roads and railways.
However, man’s changes to the physical environment have not always had beneficial results. Today, pollution of the air and water is an increasing danger to the health of the planet. Each day thousands of tons of gases come out of the exhausts of motor vehicles; smoke from factories pollutes the air of industrialized areas and the surrounding areas of countryside. The air in cities is becoming increasingly unhealthy.
The pollution of water is equally harmful. In the sea, pollution from oil is increasing and killing enormous numbers of algae (a very simple plant without stems or leaves that grows in or near water), fish and birds. The whole ecological balance of the sea is being changed. The same problem exists in rivers. Industrial wastes have already made many rivers lifeless.
Conservationists believe that it is now necessary for man to limit the growth of technology in order to survive on earth.
Questions 33 to 35 are based on the passage you have just heard.
33. What is the purpose of man changing his physical environment?
34. When is the ecological balance of the sea lost?
35. Who would most probably disagree with conservationists?
选项
A、When the ecological balance of the river is lost.
B、When people consume more fish than they used to.
C、When large numbers of algae, fish and birds are killed.
D、When the production of marine petroleum is increased.
答案
C
解析
选项均以When开头可知,本题考查某事发生的时间。短文中提到The pollution of water...killing enormous numbers of algae...fish and birds.The whole ecological balance of the sea is being changed,由此可知,当海水被污染,大批海洋生物死去,海洋的生态平衡也就被破坏了,故答案为[C]。
转载请注明原文地址:https://kaotiyun.com/show/hUg7777K
0
大学英语四级
相关试题推荐
ManandNatureThebalanceofnatureisadelicatesystemofchecksandcounter-checks.Naturehasitsownwayofchecking
ManandNatureThebalanceofnatureisadelicatesystemofchecksandcounter-checks.Naturehasitsownwayofchecking
Withtotalrevenuesofover£517millioneachyear,footballinBritainisbigbusiness.WithinBritishfootball-thebiggest
Withtotalrevenuesofover£517millioneachyear,footballinBritainisbigbusiness.WithinBritishfootball-thebiggest
Withtotalrevenuesofover£517millioneachyear,footballinBritainisbigbusiness.WithinBritishfootball-thebiggest
I________(想暑假外出旅游)becauseIenjoymeetingpeopleandseeingnewplaces.
Friendshipscanprofoundlyaffectthephysicaland【S1】______healthofbothmenandwomen.Studiesshowthatpeoplewhohavenof
Sixyearsago,aMiamiwomanwalkingthroughthehallofanofficebuildingcasuallynoticedtwomenstandingtogether.Several
A、ItisasmalltownnexttoLondon.B、Ithasalargepopulation.C、ItisinthesoutheastofScotland.D、Itisapoorcity.A细节
随机试题
患者,女性,45岁。因肝癌需手术治疗,手术中消毒范围是
在C#中,如果想把数字类型的数字在ASP.NET页面的Label控件中显示,可能通过()进行数据类型的转换。
心脏X线摄影是检查心脏病变的重要手段。心脏右前斜位摄影,身体冠状面与胶片夹角为
一个测验工具中对于对象可以测量到的程度,是指该工具的( )。
建筑工程一切险的保险人可采取的赔付方式有()。
公司战略主要强调()。
皮亚杰认知发展阶段论中,前运算阶段指的是()(泰安宁阳)
混合所有制经济中的国有成分和集体成分属于()。
随着信息技术的发展,旅游网站成为传播旅游信息资源的重要渠道,是大部分潜在游客出行前搜寻信息的主要参考来源。据统计,有61.2%的旅游者出行时会选择从网上搜寻信息,而且网络旅游信息具有搜寻成本低、传播快的特点,成为重要的信息载体和影响旅游者决策的因素。这段文
【B1】【B18】
最新回复
(
0
)