根据以下材料，回答 Aswithspokenlanguage,writtenlanguageisalwaysusedforapurpose.Peoplereadatext11theythinkthatitwillenablethemtofindanswerstoquestionsthattheyareinterestedinanswering.Peoplewritetoexpressan12ortogiveinformationtoparticularreaders.Thereare,ofcourse,manydifferentpurposesforreadingandwritinganddifferentpurposeswill13differentreadingandwritingstyles. Ingeneral,writtenlanguageisstructurallymore"correct"thanspokenlanguage.Ithasclearwordandsentence14anditsinformationismoredenselypacked.Moreissaidin15words.However,writtenlanguagealsocontainsbothstructuralandcontextualredundancyandthiscanhelpreadersto16thetext. Writtenlanguageisoftenstructurallymore17thanspokenlanguage.Thisisbecausewhenpeoplewritetheyhave18tothinkaboutwhattheywanttowriteandareableto19towhattheyhavewrittenandreviseitasoftenastheywish.Thisgreater,structuralcomplexityisonefactorthatmaymakeatext20tounderstand. Whenpeoplereadintheirfirstlanguage,theydonotusuallyreadeverywordinthetext.Readers21theireyesacrossanddownthetextstoppingatgroupsofwords(fixations)tocheckformeaning.Thespeedwithwhichpeopleread22theirpurposeforreadingandonhow23arangeofpossiblemeaningstheirbrainhastochoosefromateveryfixation.24readersusethestructuralandcontextualredundancyofthelanguage,their25ofwhattheyhavealreadyreadandthegeneralknowledgetheyalreadyhaveto26whatwillcomenext,andso27thenumberofpossiblechoicesthatthebrainhastoconsideratanyfixation. Bothwriters,whenchoosinghowtoexpresstheir28meaningfortheaudiencethattheyhaveinmind,29readers,wheninterpretingwriters′meaning,relynotonlyontheirlinguisticknowledge,but30theirgeneralknowledgeofthecontextinwhichtheyarereadingandwriting.Suchknowledge,whetherspecificallylinguisticorcontextual,isstoredinthelong-textmemory.
A.why B.because C.after D.before正确答案B
