首页
登录
职称英语
[originaltext] In a way, all of us are on a spaceship, the planet Earth. We
[originaltext] In a way, all of us are on a spaceship, the planet Earth. We
游客
2023-07-27
75
管理
问题
In a way, all of us are on a spaceship, the planet Earth. We move around the sun at 18 miles per second and never stop. On our spaceship we have six billion people and a limited supply of air, water, and land. These supplies have to be used carefully because we can’t buy new air, water, or land from anywhere else.
The environment on our planet is a closed system: nothing new is ever added. Nature recycles its resources. Water, for example, evaporates and rises as visible drops to form clouds. Then the water returns to earth as rain or snow. The rain that falls today is actually the same water that fell on the land 70 million years ago.
Today, the Earth is in trouble. Factories pour dirty water into rivers. Many fishes die and the water become unhealthy for people to drink, Cars and factories put poisonous gas into the air and cause plants, animals and people to get sick. People throw bottles and paper out of their car windows, and the roadside becomes covered with all sorts of wastes. Over the years, people have changed the environment, and at the same time we cause pollution.
To continue to survive, we must learn how to use the Earth’s resources wisely. We have to change our habits and stop dumping such enormous amounts of industrial waste into the water and air. We must cooperate with nature and learn better ways to use, not abuse, our environment.
选项
A、Because the Earth is heavily polluted.
B、Because nature cannot recycle its resources.
C、Because there are more and more people living on the Earth.
D、Because no more new resources can be added.
答案
D
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/2874940.html
相关试题推荐
[originaltext]W:Hello,David,It’sSarah.M:Hello,Sarah.W:David,I’mjust
[originaltext]M:Wouldyoulikemetogetthefilmdevelopedforyouatthesto
[originaltext]M:Wouldyoulikemetogetthefilmdevelopedforyouatthesto
[originaltext]M:Wouldyoulikemetogetthefilmdevelopedforyouatthesto
[originaltext]M:Wouldyoulikemetogetthefilmdevelopedforyouatthesto
[originaltext]M:Wouldyoulikemetogetthefilmdevelopedforyouatthesto
[originaltext]M:Wouldyoulikemetogetthefilmdevelopedforyouatthesto
[originaltext]W:Dad!I’mwonderingifIshouldbuyapairoftennisshoes.I’m
[originaltext]W:Dad!I’mwonderingifIshouldbuyapairoftennisshoes.I’m
[originaltext]TherearemanyreasonswhyfamilylifeinBritainhaschanged
随机试题
期权买方的亏损风险是有限的,但盈利可能是有限的(看涨期权时),也可能是无限的(看跌期权时)。()A、正确B、错误B从理论上说,期权买方的亏损
某增值税一般纳税企业自建一幢仓库,购入工程物资250万元,增值税税额为42.5万
可以引起帕金森综合征的药物是A、卡马西平 B、利血平 C、他巴唑 D、苯妥
执行倒闸操作过程中,监护人唱诵操作内容,操作人直接复诵。
《变电运维管理规定第5分册高压开关柜运维细则》:开关柜电缆室门不能打开,处理方法
孙子,齐国乐安(今山东惠民)人,他的《孙子兵法》是世界上公认的最古老的军事理论著
小王觉得在同学聚会中说得不好,会遭到别人的笑话,容易紧张不安,所以小王避免公开说
特发性血小板减少性紫癜(ITP)作骨髓穿刺是为了A.证明有血小板减少 B.了解
下列选项中,不属于公用和辅助工程的是( )。A.给水排水工程 B.供电与通信工
根据《房屋建筑工程质量保修办法》,施工单位负责工程质量保修的情形有( )。A.使
最新回复
(
0
)