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
What is the first thing that people ought to do in face of pollution, according to the author?
What is the first thing that people ought to do in face of pollution, according to the author?
admin
2014-05-14
68
问题
What is the first thing that people ought to do in face of pollution, according to the author?
The first thing people see, in the morning, when they walk outside is the sky or the colored sun. Is this world giving us the privilege of seeing the natural colors of the sun through all the layers of pollution within the air? Not only are beautiful sights such as this hidden behind the pollution this world causes everyday, but an increase in diseases, infections and death occurs. What causes pollution? What can we do to prevent it, and get rid of it? Is it fair to the children of the future to have to suffer the consequences that pollution causes? Why not take care of the problem now? Factory and business owners have the ability to prevent air pollution. Air pollution is the presence in the atmosphere of harmful gases, liquids, or solids. Air pollution, known as smoke pollution for many years, resulted from coal combustion. smog has been a problem in coal-burning areas for several centuries. smog finally decreased when coal combustion was replaced by oil and gas combustion. Air pollution is caused by a number of different types of pollutants. The first type, particulate matter, consists of solid and liquid aerosols suspended in the atmosphere. These arise from the burning of coal and from industrial processes. Atmospheric particles can scatter and absorb stmlight which reduces visibility. Particles also reduce visibility by attenuating the light from objects and illuminating the air causing the contrast between the objects and their backgrounds to reduce. Not only does it effect visibility, but it hastens the erosion of building materials and the corrosion of metals, interferes with the human respiratory system, and brings toxic materials into the body. The small particles cause chronic bronchitis, bronchial asthma, emphysema and lung cancer. The second type is sulfur oxides which come from the burning of coal and industrial processes. Damage to materials, to vegetation, and to the human respiratory system are caused by the acid nature of oxides. small quantities of sulfur oxides can increase illness and mortality. The third type of pollutant is carbon monoxide. Carbon monoxide is a colorless, odorless, tasteless gas against which humans have no protection. Carbon monoxide comes from the exhaust of gasoline-powered vehicles and secondarily from industrial processes.
选项
A、Sulfur oxides.
B、Toxic materials.
C、Particulate matter.
D、Carbon monoxide.
答案
B
解析
如果仔细听短文中的陈述,第一类、第二类和第三类污染物时,就会发现选项B不属于里面的任何一类,而是第一类污染物所带来的有害物质。
转载请注明原文地址:https://www.kaotiyun.com/show/KITK777K
0
专业英语四级
相关试题推荐
Thenormalhumandailycycleofactivityissome7-8hours’sleepalternationwithsome16-17hours’wakefulnessandthatthesl
Thenormalhumandailycycleofactivityissome7-8hours’sleepalternationwithsome16-17hours’wakefulnessandthatthesl
Lawyersarelessthan1%ofAmericanadults,(1)_____theyarewell-representedingovernment.Boththepresidentandthevice-p
Lawyersarelessthan1%ofAmericanadults,(1)_____theyarewell-representedingovernment.Boththepresidentandthevice-p
Mostpeoplewhotravellongdistancescomplainofjetlag.Jetlagmakesbusinesstravelerslessproductiveandmoreprone(1)_____
IntheUnitedStates,thefirstdaynursery,wasopenedin1854.Nurserieswereestablishedinvariousareasduringthe(1)_____
Manypeopleliketotravel.Theproblemisgettingyourpettothe(1)______.Inrecentyears,transportingpetsonflightshasg
Accordingtothisconversation,whichisnotincludedinordertolivealongerlife?
TheUNresolutionisaboutinternationaleffortsintighteningcontrolon______
Wednesday星期三IfyoustruggledtogetupforworkonWednesdays,/therecouldbeagoodreason/—itisthedayourmoodr
随机试题
药敏试验时常报告“中介”结果,你知道其临床意义吗?
高某和韩某因共同抢劫被判处死刑立即执行,该案件经高级人民法院复核后,报请最高人民法院核准。最高人民法院经审查发现,高某的死刑判决认定事实清楚,证据确实充分;对于韩某的判决认定事实正确,但依法不应当判处死刑。对此,最高人民法院的正确处理方式是:()
如下图所示等直杆受力情况,横截面面积A=50mm2,则图中横截面m-m上正应力为()
根据行政复议法及相关规定,在下列哪些情形下,当事人可以申请行政复议?
“忧者见之则忧,喜者见之则喜”,这是受一个人的()的影响所致。
We’veallseentheheadlinesaboutmobilephones.Ifyoubelievedeverythingyouread,you’dthrowyourmobileawayimmediately
Theyearwhichprecededmyfather’sdeathmadegreatchangeinmylife.IhadbeenlivinginNewJersey,workingdefenseplants,
LanguageDespitethefactthatmanydefinitionsoflanguagehavebeenproposed,succinctdefinitionsoflanguageusuallybringv
Whichofthefollowingitalicizedpartsisapredicativeclause?
A、Crown’s.B、Mrs.Peterson’s.C、Peter’s.D、Mr.Peterson’s.B信息明示题,男士开始便说ImuchpreferMrs.Peterson’slessons,由此可知,他喜欢彼得森女士的课,所以
最新回复
(
0
)