首页
登录
职称英语
【B1】 [br] 【B2】 [originaltext] Throughout history man has changed his physical
【B1】 [br] 【B2】 [originaltext] Throughout history man has changed his physical
游客
2023-08-01
29
管理
问题
【B1】 [br] 【B2】
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
altered
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2888645.html
相关试题推荐
[originaltext]Smartphonesdistractattentionandreducelearningbecauseof
[originaltext]Smartphonesdistractattentionandreducelearningbecauseof
[originaltext]Goodafternoon.Intoday’slecture,we’llbetalkingaboutho
[originaltext]Goodafternoon.Intoday’slecture,we’llbetalkingaboutho
[originaltext]InAmerica,mostresearchersconcedethatboysandgirlsare
[originaltext]InAmerica,mostresearchersconcedethatboysandgirlsare
[originaltext]Everyoneissupposedtocheerforgoodguys,andweshouldon
[originaltext]Everyoneissupposedtocheerforgoodguys,andweshouldon
[originaltext]Anewstudyhasfoundapositivecorrelationbetweenhowmuch
[originaltext]Anewstudyhasfoundapositivecorrelationbetweenhowmuch
随机试题
Whenyourkidsareadvisedto“getaneducation”iftheywanttoearnadece
[originaltext][9]BothJohnandSuejoinedthestaffofasuccessfulpublic
AimlessnesshashardlybeentypicalofthepostwarJapanwhoseproductivitya
收发装置的主要构成部分为()。A.装卸工具 B.全通径阀门 C.收发筒及
益母草兴奋子宫的主要成分为A.益母草碱 B.芸香苷 C.水苏碱 D.月桂酸
高血压的病因可能与( )有关。A.年龄 B.遗传 C.体重 D.环境
规定养老基金、保险基金、共同基金等类型的合格投资者,以及合格投资者发起设立的开放
初产妇,27岁。36周妊娠合并先心病,心功能Ⅱ级。终止妊娠后,不正确的护理措施是
甲是一个夜游症患者,其与乙在某地合伙卖西瓜,并共同居住在丙的1间出租屋中。某晚
肋骨骨折时采用胸壁宽胶布条固定以达到制动止痛目的,下列操作哪一项错误A.胶布条由
最新回复
(
0
)