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
70
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:http://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
Thecaptain’sconfidenceduringthebigstorm______thatthepassengerssafe.A、
Toooftenyoungpeoplegetthemselvesemployedquitebyaccident,notknowin
[originaltext]M:Hey,Sandra.What’swrong?Youlookfurious!W:I’vehaditwi
Thephrase"thelatestgenerationofHonda’ssolarears,theDream"impliesthat
下列关于火灾警报装置安装位置的说法,错误的是()。A.消防应急广播扬声器和
(2014真题)下列财务指标中,属于通过资产负债表直接计算指标的是()。A.速
对个人汽车贷款借款人的贷后检查的主要内容包括()。A.借款人的住所和联系电话是
古希腊百科全书式的哲学家是()。A.亚里士多德 B.柏拉图 C.苏格拉底
医疗机构不需在12小时内向当地卫生行政部门报告的医疗过失行为是A.造成患者一人死
在建设工程项目决策阶段,()应按照有关建设工程的法律法规和强制性标准的要求,办
最新回复
(
0
)