英语六级新题型练习之长篇阅读：段落匹配题(5套)

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1、@厦小嘉整理2013年12月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） Wearesurroundedbysomuchpaperandcardthatitiseasytoforgetjusthowcomplexitis.Therearemanyvarietiesandgradesofpapermaterials， andwhilstitisfairlyeasytospotthevariet

2、ies， itisfarmoredifficulttospotthegrades. 　　B） Itneedstobeunderstoodthatmostpaperandcardismanufacturedforaspecificpurpose， sothatwhilstthecorn-flakepacketmaylooksmart， itisclearlynotsomethingdestinedforthearchives.Itismadetolookgood， butonlyneedsalimi

3、tedlifespan.Itisalsomuchcheapertomanufacturethanhighgradecard. C） Papercanbemadefromanalmostendlessvarietyofcellulose-basedmaterialwhichwillincludemanywoods， cottonsandgrassesorwhichpapyrusisanexampleandfromwherewegettheword"paper".Manyoftheseareverys

4、pecialized， butthepreponderanceofpapermakinghasbeenfromsoftwoodandcottonorrags， withthebulkbeingwood-based. 　　PaperfromWood D） Inordertomakewoodintopaperitneedstobebrokendownintofinestrands.Firstlybypowerfulmachineryandthenboiledwithstrongalkaliessuch

5、ascausticsoda， untilafinepulpofcellulosefibersisproduced.Itisfromthispulpthatthefinalproductismade， relyingonthebondingtogetherofthecelluloseintolayers.That， inaverysmallnutshell， istheessenceofpapermakingfromwood.However， therealityisrathermorecompli

6、cated.Inorder@厦小嘉整理togiveusourwhitepaperandcard， themakerswilladdbleachandothermaterialssuchaschinaclayandadditionalchemicals. 　E） Afurtherproblemwithwoodisthatitcontainsamaterialthatisnotcellulose.Somethingcalledlignin.Thisisessentialforthetreesincei

7、tholdsthecellulosefibrestogether， butifitisincorporatedintothemanufacturedpaperitpresentsarchivistswithaproblem.Lignineventuallybreaksdownandreleasesacidproductsintothepaper.Thiswillweakenthebondbetweenthecellulosefibersandthepaperwillbecomebrittleand

8、lookratherbrownandcareworn.Wehaveallseenthisinoldnewspapersandcheappaperbackbooks.Ithasbeenestimatedthatmostpaperbackbookswillhavealifeofnotgreaterthanfiftyyears.Notwhatweneedforourarchives. 　F） Sincethelignincanberemovedfromthepaperpulpduring