资源描述:
《导学案b3m4 学生版》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、12安顺市第一高级中学高一英语导学案必修三【背景阅读材料】AASANDSTORMstruckBeijingyesterday,coveringhomes,streetsandcarsinbrowndustandleavingtheskiesamurkyyellowasthecitysuffereditsworstpollutioninyearsaheadofthe2008SummerOlympics.Thesandstormoriginated(起源)ontheborderofChinaandMon
2、goliaandstartedaffectingBeijingonSundaynight.“Unliketheparticulate(微粒的)matterthatoftenexistsinBeijing’sair,thesuspendinggranuleshittingthecitytodayarebigger,thoughstilllessthan100micronsindiameter,”saidWangXiaoming,anofficialwiththemunicipalenvironment
3、alprotectionbureau(局).“That’swhywefeelsandisrainingdown.”TheparticulatematterthatoftenhoversoverBeijingismostlylessthan10micronsindiameter,headded.TheBeijingEnvironmentalProtectionBureauwarnedthesandstormcouldbeharmful.“Sandstormscanaffectthehumanbody,
4、especiallytherespiratory(呼吸的)system,”anofficialwiththebureausaid.Hospitalshavedealtwithasharpincreaseinpatientswithrespiratorydiseases,andnews-paperswarnedpeopletowearmasksoutdoors.Sandstormscouldeasilyoccuratplaceswithlittlerainfall,scarcevegetationan
5、dfrequentgales,saidQiaoLin,anexpertwiththeChinaMeteorologicalAdministration.NorthernChinaexperiencessandstormsalmosteveryspring.ThesituationisworsenedbyhighertemperaturesthisspringandtheprolongeddroughtinnorthernChina,Qiaosaid.Chinalaunchedanafforestat
6、ion(造林)projectin2000intheInnerMongoliaAutonomousRegion,whichisregardedasthesourceofsandstorm.Theproject,however,hasnotbeenabletocontrolthedesertification.BNWChinasandstormshutsairports,schoolsBEIJING--AsandstormhitregionsofnorthwestChinaThursday,delayi
7、ngflights,strandingthousandsofpassengersandforcingschoolstosuspend(暂停)classes.Partsoffiveprovincialregionswereaffected,includingXinjiangUygurAutonomousRegion,NingxiaHuiAutonomousRegion,InnerMongoliaAutonomousRegion,andtheprovincesofGansuandShaanxi,theN
8、ationalMeteorologicalCentersaid.ThesandstormhittheGansuprovincialcapitalofLanzhouinthemorningandreducedvisibility(能见度)ytolessthan500meters,saidXuDongbei,chiefforecasterofthecity'sobservatory.FurtherwestinDunhuang,atouristdestinationfamo