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时间:2019-10-18
《职称英语等级考试理工AB精讲班课程(12)第十二讲阅读判断》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、职称英语等级考试理工AB精讲班课程第十二讲阅读判断>2008年职称英语词汇大纲新增内容(9):2008年《职称英语等级考试大纲》上新增首字母为。的单词:C级offspringn.儿女(单复数同形)ancestorn.祖先,祖宗forefathern.祖先,祖宗(B级)generationn.产生,发生,一"代,一"代人(generationgap/代沟)onlineadj./adv.在线的(地)goonline上网surfonline网上冲浪chatonline网上聊天B级odorn.气味odor-smell-scent(B级)气味A级o
2、rnamentn.装饰decoratevt.装饰todecorateastreetwithcolorfulflags(彩旗)用彩旗装饰街道>阅读判断例题解析:TheNorthernLightsThesunisstormyandhasitownkindofweather.ItissohotandactivethateventheSun"sgravitycannotholditsatmosphereincheck!EnergyflowsawayfromtheSuntowardtheEarthinastreamofelectrifiedpart
3、iclesthatmoveatspeedsaroundami11ionmilesperhour.Theseparticlesarecalledplasma,andthestreamofplasmacomingfromtheSuniscalledthesolarThesolarwindprotectivemagneticcompasspointnorthwind.ThemoreactivetheSun,thestrongerthesolarwind,constantlystreamstowardtheEarth,butdon'tworryb
4、ecauseafieldssurroundsourplanet.ThesamemagneticfieldthatmakesyouralsosteerstheparticlesfromtheSuntothenorthandsouthpoles・getssqueezedandthenthecancauseatomicparticlessatmosphereatthepoles・ThechargedparticlesbecometrappedinmagneticbeltsaroundtheEarth・Whenalargeblastofsolar
5、windcrashesintotheEarth"smagneticfieldfirstmagneticfieldlinesbreakandreconnect.Thebreakingandroconncctingofthemagncticfieldlinescalledelectronstrappedinthebeltstofal1intotheEarth"AstheelectronsfallintotheEarth,theycollidewithgasmoleculesintheatmosphere,creatingflashesofli
6、ghtinthesky.Eachatmosphericgasglowsadifferentcolor.Oxygenandnitrogenglowsredandgreenandnitrogenglowsviolet-purple・Asthesevariouscolorsglowanddanceinthenightsky,theycreatetheNorthernLightsandtheSouthernLights.Watchingaurorasisfunandexciting,butnonuollyyoucanonlyseetheminpl
7、acesfarnorthlikeAlaskaandCanada.Themovementoftheauroraacrosstheskyisusuallyslowenoughtoeasilyfollowwithyoureyesbuttheycanalsopulsate,flicker,orevenmovelikewaves・Duringsolarmaximum,aurorasareseenasfarsouthasFlorida,evenMexico!Aurorasoftenseemtobeveryclosetotheground,butthe
8、lowestauroraisstillabout100kilometersabovetheground,adistaneemuchhigherthancloudsareformedorairp
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