大学英语六级长篇阅读练习(5套)概要

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1、大学英语六级考试阅读要求考生能顺利读懂语言难度中等的一般性题材的文章、掌握中心大意以及说明中心大意的事实和细节，并能进行一定的分析、推理和判断。下面小编为大家整理了六级长篇阅读练习题及答案解析，希望对您有所帮助，祝大家备考顺利！大学英语六级改革新题型长篇阅读练习（一） 　　英语六级新题型练习之长篇阅读：段落匹配题。 　　Paper--MorethanMeetstheEye 　　A） Wearesurroundedbysomuchpaperandcardthatitiseasytoforgetjusthowco

2、mplexitis.Therearemanyvarietiesandgradesofpapermaterials， andwhilstitisfairlyeasytospotthevarieties， itisfarmoredifficulttospotthegrades. 　　B） Itneedstobeunderstoodthatmostpaperandcardismanufacturedforaspecificpurpose， sothatwhilstthecorn-flakepacketmaylook

3、smart， itisclearlynotsomethingdestinedforthearchives.Itismadetolookgood， butonlyneedsalimitedlifespan.Itisalsomuchcheapertomanufacturethanhighgradecard. 　　C） Papercanbemadefromanalmostendlessvarietyofcellulose-basedmaterialwhichwillincludemanywoods， cottons

4、andgrassesorwhichpapyrusisanexampleandfromwherewegettheword"paper".Manyoftheseareveryspecialized， butthepreponderanceofpapermakinghasbeenfromsoftwoodandcottonorrags， withthebulkbeingwood-based. 　　PaperfromWood 　　D） Inordertomakewoodintopaperitneedstobebroke

5、ndownintofinestrands.Firstlybypowerfulmachineryandthenboiledwithstrongalkaliessuchascausticsoda， untilafinepulpofcellulosefibersisproduced.Itisfromthispulpthatthefinalproductismade， relyingonthebondingtogetherofthecelluloseintolayers.That， inaverysmallnutsh

6、ell， istheessenceofpapermakingfromwood.However， therealityisrathermorecomplicated.Inordertogiveusourwhitepaperandcard， themakerswilladdbleachandothermaterialssuchaschinaclayandadditionalchemicals. 　　E） Afurtherproblemwithwoodisthatitcontainsamaterialthatisn

7、otcellulose.Somethingcalledlignin.Thisisessentialforthetreesinceitholdsthecellulosefibrestogether， butifitisincorporatedintothemanufacturedpaperitpresentsarchivistswithaproblem.Lignineventuallybreaksdownandreleasesacidproductsintothepaper.Thiswillweakentheb

8、ondbetweenthecellulosefibersandthepaperwillbecomebrittleandlookratherbrownandcareworn.Wehaveallseenthisinoldnewspapersandcheappaperbackbooks.Ithasbeenestimatedthatmostpaperbackbookswillhavealifeofnotgr