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1、WhatWeKnowAboutLanguage(2000)Manythingsaboutlanguageareamysteryandwillremainso./However,wenowdoknowsomethingaboutit./First,weknowthatallhumanbeingshavealanguageofsomesort./Nohumanraceanywhereonearthissobackward/thatithasnolanguageofitsownatall./Second,the
2、reisnosuchthingasaprimitivelanguage./Therearemanypeopleswhoseculturesareundeveloped/butthelanguagestheyspeakarebynomeansprimitive./Inallthelanguagesexistingintheworldtoday,/therearecomplexitiesthatmusthavebeendevelopedforyears./Third,weknowthatalllanguages
3、areperfectlyadequate./Eachisaperfectmeansofexpressingitsculture./Andfinally,weknowthatlanguagechangesovertime,/whichisnaturalandnormalifalanguageistosurvive./Thelanguagewhichremainsunchangedisnothingbutdead./CharacteristicsofaGoodReader(2001)Toimproveyou
4、rreadinghabits,/youmustunderstandthecharacteristicsofagoodreader./First,thegoodreaderusuallyreadsrapidly./Ofcourse,hedoesnotreadeverypieceofmaterialatthesamerate./Butwhetherheisreadinganewspaper/orachapterinaphysicstext,/hisreadingrateisrelativelyfast./Heh
5、aslearnedtoreadforideas/ratherthanwordsoneatatime./Next,thegoodreadercanrecognize/andunderstandgeneralideasandspecificdetails./Thusheisabletocomprehendthematerial/withaminimumofeffortandamaximumofinterest./Finally,thegoodreaderhasinhiscommand/severalspecia
6、lskills,/whichhecanapplytoreadingproblems/astheyoccur./Forthecollegestudent,/themosthelpfuloftheseskills/includemakinguseofthevariousaidstounderstanding/thatmosttextbooksprovide/andskim-readingforageneralsurvey./DisappearingForests(2002)Theworld’sforestsa
7、redisappearing./Asmuchas1/3ofthetotaltreecover/hasbeenlostsinceagriculturebegansome10,000yearsago./Theremainingforestsarehometohalf/oftheworld’sspecies,/thusbecomingthechiefresourcefortheirsurvival./Tropicalrainforestsoncecovered12%ofthelandoftheplanet,/as
8、wellassupportingatleasthalfoftheworld’sspeciesofplantsandanimals./Theserainforestsarehometomillionsofpeople./Butthereareotherdemandsonthem./Forexample,muchhasbeencutfortimber./Anincreasingamountofforestland/h
