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 more and more people live on th
A、Because the Earth is heavily polluted B、Because nature cannot recycle its resources. C、Because more and more people live on th
admin
2018-05-08
43
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 5 billion people and 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. Environment on our planet is a closed system. Nothing new is ever added. Nature recycles its resources. Water, for example, evaporates and rises at visible drops to form clouds. The 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 rivers, many fish die and water becomes 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 roadside becomes covered with all sorts of wastes. Over the years people have changed environment and we have pollution. To continue to survive, we must learn how to use the earth resources wisely. We have to change our habits and stop dropping 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.
12. Why does the speaker compare the earth to a spaceship?
13. How fast does the planet Earth travel around the sun?
14. Why does the speaker advise us to use the earth resources wisely?
15. What message is the speaker trying to convey?
选项
A、Because the Earth is heavily polluted
B、Because nature cannot recycle its resources.
C、Because more and more people live on the Earth.
D、Because no more new resources can be added.
答案
D
解析
短文提到,这些资源必须谨慎使用,因为我们无法从别的地方买到新的空气、水或土地,所以D正确。D项中的no...new在录音中两次提及,关键词added也是录音原词。
转载请注明原文地址:https://kaotiyun.com/show/sfT7777K
0
大学英语六级
相关试题推荐
A、Thethreegroupsdidexactlythesame.B、Thefirstgroupdidthebestin4tests.C、Thesecondgroupperformedbetter.D、Thet
A、Incidentsofworkerscausedglobalanger.B、Kafalasystemleavesworkersopentoabuse.C、AnIndonesianworkerwasstarvedto
Appleshavebeenasnotonlyadeliciousfruit,butalsoasaneffectivewaytoimproveyourhealth.Researchsuggeststhateati
A、Toshowhowcommonmicrobesare.B、Toprovehowwellhisgardeningmethodswork.C、Toprovideanexampleofanuncommonmold.
A、Organisingprotests.B、Recruitingmembers.C、Actingasitsspokesman.D、Savingendangeredanimals.A根据选项,可以预测本题询问某人的工作内容。男士说他在
A、Becausetheywanttobeimpressed.B、Becausetheycansharetheirperspectives.C、Becausetheywillbeintellectuallycurious.
A、HewasborninNewEngland.B、HeonceworkedforHarvardUniversity.C、HewasEdwardThomas’friend.D、Hewasn’tawardedanyp
A、It’squitedifferentwhenpronouncedinFrenchandEnglish.B、TowritewithoutusingitisdifficultbothinEnglishandinFr
A、Nothingbutthedarkness.B、Firefliesblinkingeverywhere.C、Aworldoflightinganimals.D、Wreckageofancientships.C录音开头演讲
A、Dreamswerealwaysmisleading.B、Dreamshadtheirownspecificmeanings.C、Dreamscouldhelpexplainourbrainactivities.D、T
随机试题
国际上通用的、最基本也是最常见的一种产业分类方法是()。
“能促使学生为发现信息真正负起责任”的小组教学方式是【】
成人小肠内的内源性物质所构成的液体量()
血栓外痔好发于肛门齿状线下
在感染过程的5种结局中最不常见的表现是
下列哪项不属于我国商业银行的二级资本?()
执行操作规程的具体要求包括()。
马卡连柯是前苏联的教育家,也是工读学校校长,学校有位叫谢苗的流浪儿童偷窃成性,但马卡连柯却对他委以重任。一天,马卡连柯叫来谢苗,交给他一张证明,一只手枪,叫他去远离教养院的一个地方取500卢布。谢苗当时简直不敢相信自己的耳朵,惊奇得半晌说不出话来,他受命而
试述杜威的“五步教学方法”与陈鹤琴活教育的“四阶段教学论”的异同,以及对当今教学实践的启示。
某一协议价格为25元、有效期6个月的欧式看涨期权价格为2元,标的股票价格为24元,该股票预计在2个月和5个月后各支付0.50元股息,所有期限的无风险连续复利年利率为8%,请问该股票协议价格为25元、有效期6个月的欧式看跌期权价格等于多少?简要说明欧式看跌期
最新回复
(
0
)