首页
登录
职称英语
【B1】 [br] 【B4】 [originaltext] Throughout history man has changed his physical
【B1】 [br] 【B4】 [originaltext] Throughout history man has changed his physical
游客
2024-03-04
37
管理
问题
【B1】 [br] 【B4】
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 woodlands 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 the 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 is killing enormous numbers of algae, 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 necessary for man to limit the growth of technology in order to survive on earth.
选项
答案
purposes
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3504907.html
相关试题推荐
[originaltext]InFebruarylastyear,mywifelostherjob.Justassuddenly
[originaltext]InFebruarylastyear,mywifelostherjob.Justassuddenly
[originaltext]Time!Ithinkalotabouttime.Andnotjustbecauseit’sthe
[originaltext]Time!Ithinkalotabouttime.Andnotjustbecauseit’sthe
[originaltext]M:MissJones,couldyoutellmemoreaboutyourfirstjobwithh
[originaltext]M:MissJones,couldyoutellmemoreaboutyourfirstjobwithh
[originaltext]Whencouplesgetmarried,theyusuallyplantohavechildren.
[originaltext]Whencouplesgetmarried,theyusuallyplantohavechildren.
[originaltext]Obtaininggoodhealthinsuranceisarealnecessitywhileyou
[originaltext]Obtaininggoodhealthinsuranceisarealnecessitywhileyou
随机试题
[originaltext]W:Wow,(1)Kevin,youlookamazing!Whatanicesuit!Isitnew?M
组织中的领导者通过控制信息的流通和解释来影响他人,这属于组织权力来源中的()A.
20×7年12月2日,甲公司销售商品给乙公司,开出的增值税专用发票上标明的售价为
人力资本投资报酬递减的原因不包括()A:受教育年限延长 B:边际教育成本
风险预警程序包括()。A.信用信息的收集和传递 B.风险识别 C.风险分析
在工作上,理财师应当集中时间精力去完成重要艰巨的工作,即把100%的时间放在最重
下列直观方式中,属于模象直观的有()A.图片 B.演示实验 C.图表 D
心与脾的功能失调,最易影响A.心神的潜藏 B.精血的互化 C.血液的生成
投资项目社会评价的目的在宏观层面上不包括()。A.制订一个能够切实完成项目目标
热塑性塑料中,具有极高的透明度,透光率可达90%以上,电绝缘性能好,刚性好及耐化
最新回复
(
0
)