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
A、The building method the builders use to save energy. B、The limit of the flow of air between inside and outside. C、The use of m
A、The building method the builders use to save energy. B、The limit of the flow of air between inside and outside. C、The use of m
admin
2016-12-18
31
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、The building method the builders use to save energy.
B、The limit of the flow of air between inside and outside.
C、The use of man-made building materials.
D、The limit of air-flow and the man-made materials.
答案
D
解析
短文提到,建筑者们为了不浪费能源,他们建造能限制室内与室外之间的空气流动的建筑物,他们还开始使用人造建筑材料。据目前所知,这些材料会释放出有害气体。正是这两个方面导致了室内空气污染,因此本题选D。
转载请注明原文地址:https://kaotiyun.com/show/YJF7777K
0
大学英语六级
相关试题推荐
Forthispart,youareallowed30minutestowriteashortessayentitledTradingonCampus.Youshouldwriteatleast150words
Phew,whatarelief.ItseemsthattheRoyalShakespeareCompanyandShakespeare’sGlobewon’thavetochangetheirnamesanyti
It’sabrandnewworld—aworldbuiltaroundbrands.Hard-charging(价格不菲的),noise-making,culture-shapingbrandsareeverywhere.T
A、ThechallengesfacingEastAsia.B、Thelocationfortheirnewoffice.C、Theirexpansionintotheoverseasmarket.D、Theliving
AttendParents’MeetingwithaGoodImageDirections:Forthispart,youareallowed30minutestowriteashortessayentitled
A、Postthepaperimmediately.B、DineoutinthatItalianrestaurant.C、Gototheofficenearthecorner.D、Sharethenewswithh
A、Studyinghistory.B、Buyinglotterytickets.C、Registeringforcourses.D、Goingtoanartgallery.C女士说电子工程学和艺术史报选的最后限期快到了,而男士正
WilmaSubrahadnointentionofbecomingapublicspeaker.After【B1】______fromcollegewithdegreesinchemistryandmicrobiolog
随机试题
发行股票、发行债券等方式属于()
生命伦理学的基本原则除外
用单斗挖土机械施工时,如果要开挖停机面以上Ⅳ级土,应选用()。
下列有关有限合伙企业设立条件的表述中,不符合《合伙企业法》规定的是()。
根据我国目前的国情,应当把扩大再生产的立足点转移到()上来。
对于非强制检定的测量仪器,为达到统一量值的目的,应以_______为主要手段。
如何培养学生的创造性思维?
以下数组定义语句中,错误的是
A、It’sanewthingandpeoplewouldliketotryitout.B、Theyhavelesstimetoattendtraditionalclasses.C、Itwouldsaveal
A、Theyarewrittenbyteenagerswhoareinlove.B、Theydealwiththeteenagers’loveaffairs.C、Theyshowtheteenagers’ideas
最新回复
(
0
)