首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、Because the Earth is heavily polluted. B、Because nature cannot recycle its resources. C、Because there are more and more people
A、Because the Earth is heavily polluted. B、Because nature cannot recycle its resources. C、Because there are more and more people
admin
2010-02-20
196
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 five 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. This same water returns to the 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 our rivers. Many fish die and the water become unhealthy for people to drink. Cars and factories put poisons 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 we have 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 to 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
短文中有这样一句话“The environment on our planet is a closed system:Nothing new is ever added.”可以了解到,D项“没有新的再可增加的资源”是正确的选项。
转载请注明原文地址:https://kaotiyun.com/show/Cqt7777K
0
大学英语四级
相关试题推荐
A、Shedidn’tlikenovelsuntilshewenttocollege.B、Shewouldratherreadnovelsthanhistorybooks.C、Sheenjoyedtheclasse
A、BecausetheIndiansalsoeducateyoungwomen.B、BecausetheIndianshaddifferentgoalsofeducation.C、BecausetheIndiansta
Inwhichofthefollowingpublicationswouldthispassagemostlikelytobeprinted?WhichofthefollowingstatementsaboutSa
TheBritishpredecessorshavebeendisplacedorannihilatedbywavesofinvaders.Mostoftheprovince’stownsandvillaswere
A、Shewantedtoobey,hermother.B、Shefoundnoonewillingtolistentoher.C、ShethoughtitwasshamefultohaveAIDS.D、She
Collegeaccommodationusuallyconsistsofasingleroom,andprovidesbothmealsandlinen.Rentandexpenseinprivateaccommo
A、Hospitalstaffonly.B、ManyPackerHallresidents.C、Manyofficials.D、Theartstudents.C本题问“谁会参加步行马拉松?”男士说“你不知道吗,PackerHall
A、Findoutaboutacourse.B、Dropalinetohisadvisor.C、Writehisassignment.D、Attendaconference.A本题问“男士几乎忘了什么事情?”男士说“我几乎
A、10or11.B、14or15.C、12or13.D、19C根据文章“JodyandIwereclassmatesathighschoolandwereattractedtoeachotherfromt
AphroditelovedAdonismorethanshedidtoheaven,forhewasabrisk,lovelyyounghunter.SheabandonedherresidenceatOlym
随机试题
求微分方程y〞+2yˊ+y=0满足初始条件y(0)=4和yˊ(0)=-2的特解。
下列属于周围性瘫痪临床特点的是
刑事处罚中不能单独行使的有( )。
保本基金的分析指标主要包括()。
使投资方案净收益为零的贴现率,称为()。
2001年全国人大常委会作出解释:《刑法》第410条规定的“非法批准征用、占用地”,是指非法批准征用、占用耕地、林地等农用地以及其他土地。对该法律解释,下列哪一种理解是错误的?()
无论运动量大小运动后均能引起超量恢复。( )
新世纪新阶段民族工作的主题是
IIS安装的硬盘分区最好选用NTFS格式,是因为(1)。①可以使用操作系统的文件加密系统(EFS)对文件或文件夹进行加密②可以针对某个文件或文件夹给不同的用户分配不同的权限③可以防止网页中的Applet程序访问硬盘中的文件④
A、OK,Iwill.B、OK,Iam.C、OK,Ido.D、OK,Idid.A本题考查对Could引导的提出请求的一般疑问句的回答。对于此类问题的回答分为肯定和否定两种:肯定回答一般为Yes,ofcourse/Certainly
最新回复
(
0
)