19.The trouble of having to charge(充電)your smartphone for hours a day could become a thing of the past.
British scientists have created a material that replaces the screen glass for phones,i-pad and smartwatches,but uses no power----meaning they could be charged weekly.The discovery is important because more than 90percent of a device's battery power illuminates(照明)the screen.
Technology firms have focused on improving battery life.But the British experts say dealing with the main power-using may give better results.Oxford University engineer Dr Peiman Hosseini,who invented the material,told the Sunday Telegraph:"You have to charge smartwatches every night.But if you had smart glass,you could recharge it just once a week."
The invention uses electrical pulses to create displays that require no power and can be viewed even in direct sunlight.Dr Hosseini's company,Bodle Technologies,hopes to have a prototype(樣機(jī))in a year.
Battery life is seen as a major obstruction for modern computing and technology.While the power of technology and lifestyle gadgets(小器件)has improved rapidly in recent years,batteries have not kept pace.The success of smart watches,including Apple's version,is thought to depend on solving this problem because few users are willing to charge a watch every day.
Gadget firms are also desperate to solve the problem.
Apple,for example,is investigating using fuel cells to power its phones and laptops,and this year had gained a patent for a system that it claimed could power its gadget for weeks.
In 2012US energy secretary Steven Chu called for a big push to improve batteries,challenging scientists to produce a battery with five times the capacity within five years.
Aside from mobile gadgets,improving battery technology is seen as being key to the success of electric cars,which currently have a limited journey before they must stop to be recharged.
32.Who invented the new material?B
A.Energy secretary.
B.Oxford University engineer.
C.Technology firms.
D.Apple Corps.
33.What can we know about the invention?C
A.It has gained a patent.
B.It is popular with customers.
C.It is a kind of glass.
D.It uses power to charge the phones.
34.The author uses the example of Apple in para7 to showD.
A.what the key to success is
B.why Apple products are popular
C.how often batteries must be recharged
D.how gadget firms are making efforts to improve batteries
35.What can be inferred from the passage?B
A.90% of batteries will be replaced with smart glass.
B.It is likely that mobile phones will be recharged once a week.
C.Scientists are focusing on increasing the number of batteries.
D.Many users are willing to pay more for watches of Apple version.
分析 本文是一篇科教類閱讀,屬于說明文,主要講述了新材料的發(fā)明以及改進(jìn)電池的一些方法,告訴我們了每天幾個小時不得不向智能手機(jī)充電的麻煩可能會成為過去.
解答 32.B.細(xì)節(jié)理解題.根據(jù)Oxford University engineer Dr Peiman Hosseini,who invented the material可知,牛津大學(xué)的工程師發(fā)明了新材料.故選B.
33.C.推理判斷題.根據(jù)You have to charge smartwatches every night.But if you had smart glass,you could recharge it just once a week.可知,必須每天晚上充電,但如果你有智能玻璃,你可以每周一次充電.故可知新材料是玻璃.故選C.
34.D.推理判斷題.根據(jù)Apple,for example,is investigating using fuel cells to power its phones and laptops,and this year had gained a patent for a system that it claimed could power its gadget for weeks.可知,果正在調(diào)查使用燃料電池來為其手機(jī)和筆記本電腦供電,而且今年已經(jīng)獲得了一個系統(tǒng)的專利,它聲稱可以為其小工具提供數(shù)周的使用權(quán).故可推測出,舉此例是為了說明公司是如何努力改進(jìn)電池的.故選D.
35.B.細(xì)節(jié)理解題.根據(jù)You have to charge smartwatches every night.But if you had smart glass,you could recharge it just once a week可知,未來手機(jī)可能能一個星期充一次電.故選B.
點評 本文是一篇科教類閱讀,題目涉及多道主旨大意題,細(xì)節(jié)理解題,推理判斷題.做題時學(xué)生應(yīng)仔細(xì)閱讀原文,把握文章主要內(nèi)容,聯(lián)系文章上下文內(nèi)容并結(jié)合所給選項含義,從中選出正確答案,一定要做到有理有據(jù),切忌胡亂猜測.