首页
登录
职称英语
[originaltext] Would the world really be so much better off if there were no
[originaltext] Would the world really be so much better off if there were no
游客
2023-08-01
35
管理
问题
Would the world really be so much better off if there were no dust? The answer is in some ways, yes, in some ways, no. What is dust anyway? It consists of particles of earth, or other solid matter, which are light enough to .be raised and carried by the wind. Where do these particles come from? They might come from dead plants and animal matter, from sea salt, from desert or volcano sand and from ashes. For the most part, dust is not a very desirable or beneficial thing. But in one way, it helps make the world more beautiful. The lovely colors of the dawn depend to a great extent on the amount of dust that is present in the air. Particles of dust in the upper air reflect the sun’s rays. This makes its light visible on earth an hour or two after sunset. But different colors which make up the sun light are bent .at different angles as they are reflected by the dust and water steam particles. Sunsets are red, because these particles bent the red rays of the sun in such a way that they are the last rays to disappear from view. Another useful function of dust has to do with ram. The vapor water in the air would not become a liquid very readily, if it did not have the dust particles serving as centers for each drop of water. Therefore, clouds, mist, fog and rain are largely formed of an infinite number of moisture particles of dust.
选项
A、The world would be more beautiful.
B、The earth would become less visible from the moon.
C、The sunrise and sunset would lose their beauty.
D、The sunrise and sunset would become more enjoyable.
答案
C
解析
[听力原文]
What would happen if there were no dust?
根据四个选项中都有would,可推测问题询问“可能会……”。本题关键句为“The lovely colors...is present in the air.”黎明时分天空中缤纷色彩主要是由空中存在的大量灰尘所生成的。“Sunsets are red, ...disappear from view.”落日是红色的,是因为这些灰尘颗粒折射了阳光中的红色射线。因此可知如果没有灰尘日升日落就失去了美丽。故正确答案为C)。
转载请注明原文地址:https://tihaiku.com/zcyy/2886850.html
相关试题推荐
[originaltext]M:Excuseme,Iwonderifyoucouldhelpme?W:Ofcourse.Howca
[originaltext]M:Excuseme,Iwonderifyoucouldhelpme?W:Ofcourse.Howca
[originaltext]W:Hi,Mathew,congratulations!ImetProf.Greenthismorningan
[originaltext]W:Hi,Mathew,congratulations!ImetProf.Greenthismorningan
[originaltext]W:Hi,Mathew,congratulations!ImetProf.Greenthismorningan
[originaltext]StudentsinAmericanschoolslearnfromanearlyagetogive
[originaltext]Hello,everyone.Intoday’slecture,wewillstudysomeexpre
[originaltext]Hello,everyone.Intoday’slecture,wewillstudysomeexpre
[originaltext]Tobeginmytalk,I’dliketotellyouastoryfirst.Soit’s
[originaltext]Ayoungmanoncewenttotownandboughthimselfapairoftr
随机试题
TheBushAdministrationiswarningthatcontinuingMid-eastviolencethreate
[A]menu[B]access[C]ineffective[D]enhanced[E]routine[F]particularly[G]co
建筑施工企业应当在()建立工资保证金专用账户,提交农民工工资保证金专项用于发生
张先生是甲公司的销售经理,业余时间喜欢在家进行新产品的研发,研发过程中,他自筹资
下列事项中,属于有限责任公司监事会职权有( )。 ①检查公司财务 ②对董事
不采用砂炒的药材是A:鳖甲B:鸡内金C:马钱子D:狗脊E:阿胶
按照企业层级的分类,可以把绩效分为( )等。A.公司指标 B.企业指标 C
结核性胸膜炎胸腔积液可能为( )。A.胸液蛋白含量20g/L、LDH120U
下列关于商业银行进行充分信息披露的作用的表述中,错误的是()。A.信息披露
对于我国现有个人贷款业务的特征,下列说法中正确的有()。A.个人贷款业务办理较
最新回复
(
0
)