首页
登录
职称英语
[originaltext] For years scientists have been worried about the effects of a
[originaltext] For years scientists have been worried about the effects of a
游客
2023-08-10
53
管理
问题
For years scientists have been worried about the effects of air pollution on the earth’s natural conditions. Some believe the air inside many houses may be more dangerous than the air outside. It may be one hundred times worse. Indoor air pollution can cause a person to feel tired, to suffer eye-pain, headache and other problems. Some pollutants can cause breathing disorders, diseases of blood and even cancer. Most scientists agree that every modern house has some kind of indoor pollution. People began to notice the problem in the early 1970s. When builders began making houses and offices, they did not waste energy. To do this they built buildings that limited the flow of air between inside and outside. They also began using man-made building materials. These materials are now known to let out harmful gases. As the problem became more serious, scientists began searching for a way to deal with it. They discovered a natural pollution control system for buildings—green plants. Scientists do not really know how plants control air pollution. They believe that a plant’s leaves absorb or take in the pollutants. In exchange the plant lets out oxygen through its leaves and through its tiny organizations on its roots. Scientists suggest that all buildings should have one large plant or several small plants inside for every nine square meters of space. Studies of different plants show that each absorbs different chemicals. So the most effective way to clean the air is to use different kinds of plants.
13 According to the speaker, what problem may indoor air pollution bring to people?
14 What causes the indoor air pollution according to the speaker?
15 What is the most effective way to clean the air?
选项
A、They may feel exhausted.
B、They may feel very nervous.
C、They may have heartache.
D、They may suffer a cold.
答案
A
解析
①由选项可知,本题询问They可能存在哪种身体不适,They应该指人。②短文提到,室内空气污染可能使人感觉疲倦、眼痛、头疼等。A中的exhausted对应文中的tired,故答案为A。
转载请注明原文地址:https://tihaiku.com/zcyy/2914248.html
相关试题推荐
科学家们早就发现,地球绕着太阳转。Scientistshavelongdiscoveredthattheearthmovesaroundthe
[originaltext]Objectsthatarevibratingmakesounds.Rhythmicsoundvibrations
[originaltext]Inorderforachemicaltobeconsideredadrug,itmusthavethe
[originaltext]Inorderforachemicaltobeconsideredadrug,itmusthavethe
[originaltext]Hi,everybody.AsIsaidinmyStateoftheUnionaddress,weliv
[originaltext]IntheUnitedStates,manypeopleoncelivedinlarge,two-and-th
[originaltext]Easterisamixofthreetraditions:Pagan,HebrewandChristian.
[originaltext]Easterisamixofthreetraditions:Pagan,HebrewandChristian.
[originaltext]Easterisamixofthreetraditions:Pagan,HebrewandChristian.
[originaltext]W:2millionhighschoolseniorsaregearingupthisfalltoappl
随机试题
ComputerCrimeⅠ.IntroductionCurrentsituation:thein
Childrenlearnalmostnothingfromtelevision,andthemoretheywatchthel
听觉失认叙述不正确的是A.分裂性的为不能领悟某一类型的声音 B.病灶在左颞叶
OSAHS定位诊断的金标准是A.纤维喉镜检查 B.食管测压 C.头颅X线测量
某一试验室需要进行AC-20C沥青混合料(70号A级道路石油沥青)马歇尔试验。己
A公司当年的公司净利润为6000万元,发行在外的总股数为3000万股,净资产为8
紫外线灯用于空气消毒的有效距离A:不超过1.3m B:不超过2m C:不超过
下列对单位外汇存款操作表述正确的是( )。A.境内机构只能开立一个经常项目外汇
本案例中求助者的主要症状包括( 多选。A、失眠 B、兴趣缺失 C
货物从物流中心进入境内时,下列( )是依法免征关税和进口环节税的货物. A.
最新回复
(
0
)