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
2023-07-13
53
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 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://tihaiku.com/zcyy/2834293.html
相关试题推荐
[originaltext]Myparentsranasmallrestaurant.Therestaurantwasopened
[originaltext]Myparentsranasmallrestaurant.Therestaurantwasopened
[originaltext]Fromthislookoutweenjoyoneofthemostspectacularviewso
[originaltext]Fromthislookoutweenjoyoneofthemostspectacularviewso
[originaltext]Atfirstglance,JapanastonishesandfascinatestheAmerican
[originaltext]Togetadriver’slicense,youmusttakeaseriesoftests.T
[originaltext]Togetadriver’slicense,youmusttakeaseriesoftests.T
[originaltext]M:Excuseme.Haveyoubeenwaitinglong?W:Abouttenminutes.M
[originaltext]M:Excuseme.Haveyoubeenwaitinglong?W:Abouttenminutes.M
[originaltext]M:Excuseme.Haveyoubeenwaitinglong?W:Abouttenminutes.M
随机试题
Completethenotesbelow.WriteONEWORDONLYforeachanswer.Procedure
NarratorListentopartofatalkinalinguisticsclass.Nowgetre
Somepeople’searsproducewaxlikebusylittlebees.Thiscanbeaproblem
一患者的肝功能检查结果是ALT与AST超过正常值,且AST/ALT之比值大于1。
病理性黄疸应除外()A.出现在24小时以内 B.黄疸退而复现 C.足
ρ>0,表示两变量间( );ρ<0,表示两变量间( )。A.负线性相关;正线
下列属于公安法制工作内容的有( )A.公安机关内部的法律事务和内部执法监督工作
李某在微博上谎称某大百货市场有炸弹,公安机关立即组织人力进行了全面搜索,但是在大
银行业从业人员的下列行为中,符合“反洗钱”规定的有( )。A.除非经内部职责调
颗粒细胞上有其受体,结合后可激活芳香化酶活性() A.雌激素 B.孕激素
最新回复
(
0
)