1.OnOpenPolicyTheopenpolicymeansthatourcountryisopentoinvestment,tradeandtechnicalandeconomiccooperationwithothercountriesonthebasisofequalityandmutualbenefit.Thepurposeofopenpolicyistoacquireadvancedtechnology,managementskillstoserveoursocialistconstructionsoastopromotetherealizationofthefourmodernizations.Wemustadheretotheopenpolicy.Becauseeconomicrelationsbetweenstatestodayhavebecomeincreasinglyclose,andnocountrycanpossiblyadvancebehindclosedoors.Onlyinthisway,canwegraduallyclosethegapbetweenourcountryandthedevelopedcountries.Throughtheimplementationofpolicy,wecanlearnadvancedtechnologyandmanagerialexpertisefromabroad;makefulluseoftheforeigncapitalstosetupgreatenterprises;absorbusefulandhealthyideasandnewknowledgeofthemoderncivilization;andbroadenourviewsandraiseourlevelofcompetence.---本文来源于网络，仅供参考，勿照抄，如有侵权请联系删除---2.TheplaceofScienceandTechnologyinModernLife.Humanlifecannotcontinuewithoutscienceandtechnology.Formanyyears,humansocietyhasdevelopedwiththeadvanceofscienceandtechnologywhilethedevelopmentofscienceandtechnologyhasinturnbroughttheprocesstomankind.Sothelifewearelivingnowismorecivilizedthanthatofourforefathers.Thedevelopmentofscienceandtechnologyhavebroughtaboutmanychangesinpeople'slife.Forexample,theinventionoftelevisionandspacerockethaveopenedaneweraformankind.ThroughtheuseofTVpeoplecanhearthesoundandlearntheeventshappeningthousandsofmilesaway.Owingtotheinventionofspaceshipandrocket,thedreamofman'slandingonthemoonhasnowcometrue.Scienceandtechnologyalsoplayanimportantroleinoursocialistconstruction.Wemaysay,oursocialistconstructionisjustlikeaskyscraper,whilescienceandtechnologyareitsbase.Withoutthebase,theskyscrapercan'tbebuilt.Therefore,weshouldtryourbesttocontributetothedevelopmentofscienceandtechnologysoastoprovideamoresolidbasetobuildourcountry.3.ImportanceofEducation<ST1lacew:st="on">China</ST1lace>,asadevelopingcountry,isdeterminedtocatchupwithandevensurpassthedevelopedones.Ithinkthatoneofthebestpossiblewaystodosoistogivefirstpriority(优先）tothedevelopmentofculture,scienceandespeciallyeducation.Inmodern,whenscienceandtechnologyaremakinggreatprogress,theeducationoftheworkforceisofprimaryimportance.Moreover,manyofthesuccessinadvancedcountrieshavedemonstratedthatanation'sprosperitymainlydependsonthequalityofitslabourforce,namelythosewhohavebeenwelleducated.Inadevelopingcountrysuchas<ST1lacew:st="on">China</ST1lace>,ourinvestmentinculture,educationandscience,andespeciallyelementaryeducation,mustenjoytoppriority.Thisiscrucial(决定性的）forChinatocatchupwiththedevelopednationsintoday'ssurging(汹涌的)wavesoftechnologicalrevolution.Otherwise,thegapbetween<ST1lacew:st="on">China</ST1lace>andadvancedcountrieswillbewidenedratherthanbridged.4.AirPollutionAirpollutionisoneofthemajorproblemsofthemodernworld.Agreatdealofenergyisneededtorunthefactoriesofmodernindustrialnations.Automobile,trains,planesandbussesneedenergy,too.Nearlyallofthisenergyisproducedbyburningfuels.Theburningproduceswastes,someofwhichremainintheair,causingairpollution.---本文来源于网络，仅供参考，勿照抄，如有侵权请联系删除---Scientistsarefindingwaystostopairpollutionespeciallyinbigindustrialareasanddensely-populatedcities.Theyarestudyingnewwaysofgeneratingelectricitythatmaybelessdamagingtotheenvironment.Inthemeantime,manypowerplantsarebe...