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
Until the invention of the modern washing machine, most people washed their clothes by hand. In the 20th century, however, washi
Until the invention of the modern washing machine, most people washed their clothes by hand. In the 20th century, however, washi
admin
2014-12-31
19
问题
Until the invention of the modern washing machine, most people washed their clothes by hand. In the 20th century, however, washing machine became common, and washing clothes became much easier. Washing machines, though, have some serious disadvantages. One is that they need a great deal of clean water. Another is that, in many countries, hot water is used in the machines. This consumes a lot of energy. In the United Kingdom, for example, about one-third of household energy is used for heating water, including that used to wash clothes.
Now, a British company has invented a washing machine that solves these problems by using small plastic beads to absorb dirt and clean the clothes. First, a little water is added to the clothes to get them wet. Then, the beads are mixed with the clothes until they have taken away all the dirt and stains. When the process is over, the little beads are removed by the machine, and the clothes are left almost dry. Because the beads can be used over and over, the machine costs very little to operate.
The new machine is based on the research of Stephen Burkinshaw, a chemist at the University of Leeds in the U.K. For a long time, Burkinshaw has been studying ways to make plastic materials a different color. A few years ago, he noticed that many kinds of plastic, especially nylon, attract dirt in warm and wet conditions, the surface of the nylon remains clean. For this reason, beads made of nylon can be used repeatedly until they are completely full of dirt.
The new washing machine can save households a great deal of the money they spend on water and energy. At the same time, the machines are very good for the environment. The United States, for example, uses 1.25 billion metric tons of water on washing clothes every year. If the new machines were adopted there, 90 percent of this water could be saved. The saving of electricity, meanwhile, would help decrease the amount of carbon dioxide produced by power plants. For these reasons, the company is hoping that its new "waterless" washing machines will be widely used in the future.
Which of the following statements is true?
选项
A、Burkinshaw’s research has already helped the United States to save a lot of water.
B、Burkinshaw’ s research was originally about ways to change the color of plastic materials.
C、The new machines can wash clothes more quickly than ordinary washing machines.
D、The new machines are better at washing nylon clothes than those made from other materials.
答案
B
解析
细节题。根据短文第三段中Burkinshaw has been studying ways to makeplastic materials a different color可知选项B正确。根据最后一段If the newmachines were adoptedt here.90 percent of this water could be saved.可知选项A不正确;选项C、D在文中没有提及。故选B。
转载请注明原文地址:https://kaotiyun.com/show/4nq7777K
0
大学英语四级
相关试题推荐
A、Sherefusedthejobofferedbyacompany.B、Shecouldearnenoughmoneytosupportherself.C、Shewassatisfiedwithherprese
There’snobetterfeelinginajobthanwhenyouknowthebosshasfullconfidenceinyou.Youenterazonewhereyoucanreally
There’snobetterfeelinginajobthanwhenyouknowthebosshasfullconfidenceinyou.Youenterazonewhereyoucanreally
There’snobetterfeelinginajobthanwhenyouknowthebosshasfullconfidenceinyou.Youenterazonewhereyoucanreally
Theconceptofmanversusmachineisatleastasoldastheindustrialrevolution,butthisphenomenontendstobemostacutely
Theconceptofmanversusmachineisatleastasoldastheindustrialrevolution,butthisphenomenontendstobemostacutely
ItisimpossibletomeasuretheimportanceofEdisonbyaddinguphisspecificinventions.Actually,hisnameis【B1】______withm
Whileit’seasyenoughtobrushoffafewsleeplessnightswithapotofcoffeeandtheoccasionaldesknap,youmaybedoingmo
A、Becauseshewasencouragedbyherfather.B、Becauselawyersatthattimereceivedhighpay.C、Becauseshewasinfluencedbya
A、Reporterandfashiondesigner.B、Teacherandstudent.C、Shopassistantandcustomer.D、Husbandandwife.A推理判断题。对话双方讨论了服装如何体现人
随机试题
工商银行资金汇划清算系统的基本模式是()
寒湿腰痛日久不愈,兼见腰膝酸软无力.脉沉弱等症,治宜()湿热腰痛,治宜()
桩按照承载性质的不同可分为()。
下列项目中,属于形状精度的公差项目有( )。
被评估企业曾以实物资产(机器设备)与B企业进行联营投资,投资额占B企业资本总额的20%。双方协议联营10年,联营期满,B企业将按机器设备折余价值20万元返还投资方。评估时双方联营已有5年,前5年B企业的税后利润保持在50万元水平,投资企业按其在B企业的投资
某公司年终利润分配前的股东权益项目资料如下:要求:计划按每10股送1股的方案发放股票股利并按发放股票股利后的股数派发每股现金股利0.2元,股票股利的金额按现行市价计算,计算完成这一方案后的股东权益各项目数额:
要做到遵纪守法,对每个职工来说,必须做到()。
公安政策的作用有指导作用、规范作用和调整作用。( )
甲因停车收费与保安乙发生冲突。抽刀将乙刺死。甲在检察机关准备提起公诉期间因病死亡,检察机关遂做出撤销案件的决定。此案撤销的根据是()。
LittleLadyStartsBigWarHarrietBeecherStowehadpouredherheartintoheranti-slavery(反对奴隶制度)bookUncleTom’sCabin.【4
最新回复
(
0
)