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
58
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
Therearefourbasictypesofcompetitioninbusinessthatformacontinuum
[audioFiles]2017m5x/audio_ezfj_013_170517[/audioFiles]RainbowYouwill
肥胖者会喜欢在月球跳跃,因为人在月球的重量是其在地球的六分之一。(lessthan)Overweightpeoplewouldlikejumping
Humanbeingsaresuperiortoanimalsbecausetheycanuselanguageasatoolof
YouhaverecentlyvisitedthisInternetwebsite.Writealettertoafriend
[originaltext]Intheearlydaysofnuclearpower,theUnitedStatesmademo
根据《标准》,内部审计师有责任协助发现舞弊,则下列行为中属于内部审计师在这方面的
下列有关审计证据的表述中,正确的有( )。[2008年初级真题]A.审计证据的
开放式基金在开始办理申购或者赎回前,至少每月公告1次资产净值和份额净值。()
监控主要外场设备基础安装要求,基础混凝土一般采用()混凝土浇筑。A.C15
最新回复
(
0
)