2017年职称英语考试阅读真题及答案「综合C」
自古以来学有建树的'人,都离不开一个“苦”字。以下是小编为大家搜索整理的2017年职称英语考试阅读真题及答案【综合C】,希望能给大家带来帮助!更多精彩内容请及时关注我们应届毕业生考试网!
ElectricBackpack
Backpacksare can hold your books,your lunch,and achange ofclothes,leaving your hands free to do other day,if youdont mindcarrying a heavy load,your backpacks might also power your MP31player,keep yourcell phone running,and maybe even light your wayhome.
and his colleagues from the University of Pennsylvania in Philadelphia2and the Marine Biological Laboratory in WoodsHole3,Mass.4,have invented abackpack that makes electricity from energyproduced while its wearer litary actions,search-and-rescueoperations,and scientific fieldstudies,people rely increasingly on cellphones,global positioning system (GPS)5 receivers,night-vision goggles,andother battery powered devices to get aroundand do their backpackselectricity- generating feature coulddramatically reduce the amount of awearer’s load now devoted to spare batteries,report Rome and his colleaguesinthe Sept.9 Science6.
Thebackpacks electricity-creating powers depend onsprings used to hang a clothpack from its metal frame sits againstthe wearer’s back,and the whole pack moves upand down as the person r mechanism converts vertical movements of thepack to rotary motions of anelectrical generator,producing up to 7.4 watts.
Unexpectedly,testsshowedthat wearers of the new backpack alter their gaits in response to thepacksoscillations,so that they carry loads more comfortably and with lesseffortthan they do ordinary use of that surprising advantage,Romeplans to commercialize both electric and non-electric versionsof the backpack.
The backpackcould be especially useful orsoldiers,scientists,mountaineers,and emergencyworkers who typically carryheavy the rest of us,power-generatingbackpacks could make itpossible to walk,play video games,watch TV,and listen tomusic,all at the tricity-generating packs arent on the marketyet,but if you do get one eventually,just make sure to look both ways beforecrossing thestreet!
packs are convenient because
答案: yourhands are freed to do other things.
is the most important feature of the backpack invented byLawrence and his colleagues?
答案: Itproduces electricity forelectronic devices while the wearer walks.
word "springs" inParagraph 3 means .
答案: a lengthof metal woundaround,which returns to its original shape after
being pushed.
rdingto Paragraph 4,what does Rome plan to do?
A To makethe backpackmore comfortable for the wearer.
答案: To putthe backpack on the market.
isimplied in “if you do getoneeventually,just make sure to took both ways before crossing thestreet!"?
答案:Enjoyingelectronic devices while walking may invite traffic accidents.
-
2017年职称英语完形填空历年真题
此刻打盹,你将做梦;而此刻学习,你将圆梦。以下是小编为大家搜索整理的2017年职称英语完形填空历年真题,希望能给大家带来帮助!更多精彩内容请及时关注我们应届毕业生考试网!PublicRelationsPublicrelationsisabroadsetofplannedcommunicationsaboutthecompany,inc...
-
职称英语《综合B》词汇选项真题训练及答案
词汇选项textonerwardstherewasjustafeelingoflet-down.A.excitementB.angerC.calmD.disappointmentcommitteewasaskedtorenderareportonthehousingsituation.A.copyB.furnishC.publishD.summarizecurriculumwastoonarrowandtoorigid.A.hiddenB.inflexibleC.tr...
-
2018职称英语理工类试题阅读理解训练
学习中经常取得成功可能会导致更大的学习兴趣,并改善学生作为学习的`自我概念。以下是小编为大家搜索整理的2018职称英语理工类试题阅读理解训练,希望对正在关注的您有所帮助!更多精彩内容请及时关注我们应届毕业生考试网!Upuntilabout100yearsago,newspapersint...
-
2022年职称英语考试模拟测试题
在学习和工作的日常里,我们会经常接触并使用试题,借助试题可以为主办方提供考生某方面的知识或技能状况的信息。一份好的试题都是什么样子的呢?下面是小编收集整理的`2022年职称英语考试模拟测试题,欢迎大家分享。职称英语考试模拟测试题篇1单项选择题1、Aliceisaf...