首页
登录
职称英语
[originaltext] Throughout history man has changed his physical environment i
[originaltext] Throughout history man has changed his physical environment i
游客
2024-02-08
67
管理
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 industrialised 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 23 to 25 are based on the passage you have just heard.
23. What is the purpose of man changing his physical environment?
24. When is the ecological balance of the sea lost?
25. 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
短文中提到The pollution ofwater...killing enormous numbers of algae...fishand birds.The whole ecological balance of the seais 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:http://tihaiku.com/zcyy/3431306.html
相关试题推荐
[originaltext]M:(9)Isthistheworkshoptoprepareforaninterview?Iamtryin
[originaltext]W:Ifitishottomorrow,wemaygiveuptheideaofplayingtenn
[originaltext]W:Ifitishottomorrow,wemaygiveuptheideaofplayingtenn
[originaltext]W:Ifitishottomorrow,wemaygiveuptheideaofplayingtenn
[originaltext]W:Ifitishottomorrow,wemaygiveuptheideaofplayingtenn
[originaltext]W:Ifitishottomorrow,wemaygiveuptheideaofplayingtenn
[originaltext]Ifyou’refindingittoughtolandajob,tryexpandingyour
[originaltext]Ifyou’refindingittoughtolandajob,tryexpandingyour
[originaltext]Cellphonefeelslikeapartofyourbody?(19)Aglobalsurvey
[originaltext](16)Thereisnodoubtthatadults,andevenhighlyeducateda
随机试题
LoveAroundtheWorldItwasanunsettingnightatth
关于雌、孕激素生物合成与代谢,以下哪项是错误的A.卵巢合成雌二醇(E)及雌酮
下列选项中,()揭示了在一定条件下资产的风险溢价、系统性风险和非系统性风险
托马斯试验检查是为了检查髋关节的A.外展功能 B.内收功能 C.屈曲功能
A.透明小体 B.中性粒细胞 C.破骨细胞 D.牙周袋 E.髓石牙周病有
关于维护保险标的安全义务,下列说法中正确的有()。A.被保险人应当遵守国家有关
(2020年真题)根据物权法律制度的规定,下列物权变动中,须经登记方可生效的是(
不适用《中华人民共和国渔业法》的生产活动是( )。A.海湾养虾 B.水库捕鱼
下列关于仪表着陆系统(ILS)的说法中正确的有( )。A.ILS是导航系统
项目经理的任务包括项目的行政管理和项目管理两个方面,其在项目管理方面的主要任务不
最新回复
(
0
)