2015年职称英语理工类新增文章

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1、2015年职称英语理工类新增文章发布时间：2015-02-2718:00:58     2015年职称英语教材已全面上市，第一考试网为大家整理了职称英语教材理工类变化信息，希望能对大家的备考有所帮助，祝大家考试顺利！    2015年职称英语教材理工类的变动比较小，一共只有5篇新增文章。　　2015年职称英语教材理工类新增的5篇文章，分布在阅读理解和补全短文：　　阅读理解理工C和理工B各新增一篇文章；　　补全短文理工A、B和C各新增一篇文章。　　完形填空理工类整体都没有新增文章。　　2015年职称英语教材新增文章的对比目录如下：理工类  旧文章新增文章理工C阅读理解

2、第九篇：EgyptFelledbyFamine第九篇：AnEssentialScientificProcess补全短文第五篇：TheMagicofSound第五篇：ARecord-BreakingRover理工B阅读理解第二十二篇：Snowflakes第二十二篇：Real-WorldRobots补全短文第九篇：HeatIsKiller第九篇：LighteningStrikes理工A补全短文第十三篇：SleepingGiant第十三篇：AffectionateAndroids 第九篇AnEssentialScientificProcess　　Alllifeonthee

3、arthdependsupongreenplants.Usingsunlight,theplantsproducetheirownfood.Thenanimalsfeedupontheplants.Theytakeinthenutrientstheplantshavemadeandstored.Butthat’snotall.Sunlightalsohelpsaplantproduceoxygen.Someoftheoxygenisusedbytheplant,butaplantusuallyproducesmoreoxygenthanituses.Theexces

4、soxygenisnecessaryforanimalsandotherorganismstolive.　　Theprocessofchanginglightintofoodandoxygeniscalledphotosynthesis.Besideslightenergyfromthesun,plantsalsousewaterandcarbondioxide.Thewatergetstotheplantthroughitsroots.Thecarbondioxideenterstheleavesthroughtinyopeningscalledstomata.T

5、hecarbondioxidetravelstochloroplasts,specialcellsinthebodiesofgreenplants.Thisiswherephotosynthesistakesplace.Chloroplastscontainthechlorophyllsthatgiveplantstheirgreencolor.Thechlorophyllsarethemoleculesthattraplightenergy.Thetrappedlightenergychangeswaterandcarbondioxidetoproduceoxyg

6、enandasimplesugarcalledglucose.　　Carbondioxideandoxygenmoveintoandoutofthestomata.Watervaporalsomovesoutofthestomata.Morethan90percentofwateraplanttakesinthroughitsrootsescapesthroughthestomata.Duringthedaytime,thestomataofmostplantsareopen.Thisallowscarbondioxidetoentertheleavesforpho

7、tosynthesis.Asnightfalls,carbondioxideisnotneeded.Thestomataofmostplantsclose.Waterlossstops.　　Ifphotosynthesisceased,therewouldbelittlefoodorotherorganicmatterontheearth.Mostorganismswoulddisappear.Theearth’satmospherewouldnolongercontainoxygen.Photosynthesisisessentialforlifeonourp