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
2024-03-03
24
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、Of course.
B、It depends.
C、Certainly not.
D、It is not mentioned.
答案
B
解析
Would the world really be so much better off if there were no dust?
根据四个选项可推测问题可能询问“Yes/No”。本题关键句为“The answer is in some ways, yes, in some ways, no.”答案可以是肯定的,也可以是否定的。故选项B)为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3503109.html
相关试题推荐
[originaltext]Researchershaveidentifiedapotentnewantibioticcompound
[originaltext]M:InthisepisodeofMoneyTalks,ourguestisMollySanders,a
[originaltext]M:InthisepisodeofMoneyTalks,ourguestisMollySanders,a
[originaltext]W:Mr.DavidJackson,astaffwriterattheNewYorker,isknown
[originaltext]W:Mr.DavidJackson,astaffwriterattheNewYorker,isknown
[originaltext]W:Mr.DavidJackson,astaffwriterattheNewYorker,isknown
[originaltext]W:Mr.DavidJackson,astaffwriterattheNewYorker,isknown
[originaltext]AnAmericanresearcherwhostudied600millionairesfoundhow
[originaltext]Thereareprobablyteamsyou’veworkedwithbutyouneverwan
[originaltext]Appeartobesubmissive,humble,gratefulandundemanding;sh
随机试题
Stressiswithusallthetime.Itcomesfrommentaloremotionalactivitya
Americanseat___________(两倍的)proteinastheyactuallyneedeveryday.twiceasmu
AmericansandTheirCarsA)Ithasbeenoneoftheworld’
AftermovingfromNewYorktoLosAngelesin2010totakeajobwithafina
Theotherday,Iwalkedintoanairportmen’sroom,whichwasemptyexceptf
DearMr.LiDong,Iampleasedtoconfirmthatyouhaveaconditionaloffer
谈谈对教师而言,"德福一致"的重大意义。
吗啡氧化后生成A.无毒性的阿朴吗啡 B.无毒性的伪吗啡 C.毒性较大的伪吗啡
下列关于我国理财师队伍发展现状特征的表述,正确的是( )。A.理财师由银保监会
关于通风空调系统联合试运转及调试的说法,正确的有()。A.系统总风量调试结
最新回复
(
0
)