托福考试真题阅读TPO-26-reading阅读.doc

托福考试真题阅读TPO-26-reading阅读.doc

ID:51800660

大小:78.00 KB

页数:11页

时间:2020-03-15

托福考试真题阅读TPO-26-reading阅读.doc_第1页
托福考试真题阅读TPO-26-reading阅读.doc_第2页
托福考试真题阅读TPO-26-reading阅读.doc_第3页
托福考试真题阅读TPO-26-reading阅读.doc_第4页
托福考试真题阅读TPO-26-reading阅读.doc_第5页
资源描述:

《托福考试真题阅读TPO-26-reading阅读.doc》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库

1、EnergyandtheIndustrialRevolutionForyearshistorianshavesoughttoidentifycrucialelementsintheeighteenth-centuryriseinindustry,technology,andeconomicpowerKnownastheIndustrialRevolution,andmanygiveprominencetotheproblemofenergy.Untiltheeighteenthcentury,peoplereliedonenergyderivedfromp

2、lantsaswellasanimalandhumanmuscletoprovidepowerIncreasedefficiencyintheuseofwaterandwindhelpedwithsuchtasksaspumping,milling,orsailing.However,bytheeighteenthcentury,GreatBritaininparticularwasexperiencinganenergyshortage.Wood,theprimarysourceofheatforhomesandindustriesandalsoused

3、intheironindustryasprocessedcharcoal,wasdiminishinginsupply.GreatBritainhadlargeamountsofcoal;however,therewerenotyetefficientmeansbywhichtoproducemechanicalenergyortopowermachinery.Thiswastooccurwithprogressinthedevelopmentofthesteamengine.Inthelate1700sJamesWattdesignedanefficie

4、ntandcommerciallyviablesteamenginethatwassoonappliedtoavarietyofindustrialusesasitbecamecheapertouse.Theenginehelpedsolvetheproblemofdrainingcoalminesofgroundwaterandincreasedtheproductionofcoalneededtopowersteamengineselsewhere.Arotaryengineattachedtothesteamengineenabledshaftsto

5、beturnedandmachinestobedriven,resultinginmillsusingsteampowertospinandweavecotton.Sincethesteamenginewasfiredbycoal,thelargemillsdidnotneedtobelocatedbyrivers,ashadmillsthatusedwater-drivenmachines.Theshifttoincreasedmechanizationincottonproductionisapparentintheimportofrawcottona

6、ndthesaleofcottongoods.Between1760and1850,theamountofrawcottonimportedincreased230times.ProductionofBritishcottongoodsincreasedsixtyfold,andcottonclothbecameGreatBritain’smostimportantproduct,accountingforone-halfofallexports.Thesuccessofthesteamengineresultedinincreaseddemandsfor

7、coal,andtheconsequentincreaseincoalproductionwasmadepossibleasthesteam-poweredpumpsdrainedwaterfromtheever-deepercoalseamsfoundbelowthewatertable.Theavailabilityofsteampowerandthedemandsfornewmachinesfacilitatedthetransformationoftheironindustry.Charcoal,madefromwoodandthusinlimit

8、edsupply,wasreplacedwithcoal-deri

当前文档最多预览五页,下载文档查看全文

此文档下载收益归作者所有

当前文档最多预览五页,下载文档查看全文
温馨提示:
1. 部分包含数学公式或PPT动画的文件,查看预览时可能会显示错乱或异常,文件下载后无此问题,请放心下载。
2. 本文档由用户上传,版权归属用户,天天文库负责整理代发布。如果您对本文档版权有争议请及时联系客服。
3. 下载前请仔细阅读文档内容,确认文档内容符合您的需求后进行下载,若出现内容与标题不符可向本站投诉处理。
4. 下载文档时可能由于网络波动等原因无法下载或下载错误,付费完成后未能成功下载的用户请联系客服处理。