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时间:2020-12-18
《二氧化碳安全告示牌讲课讲稿.doc》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、精品好文档,推荐学习交流危险化学品安全告示牌有毒物品,对人体有害,请注意防护名称二氧化碳警示标识防护措施类别不燃气体危险等级3级禁忌物易燃或可燃物、活性金属粉末、乙炔危险性窒息性气体,在密闭容器内可将人窒息死亡。若遇高热,容器内压增大,有开裂和爆炸的危险。健康危害当二氧化碳少时对人体无危害,但其超过一定量时会影响人的呼吸,原因是血液中的碳酸浓度增大,酸性增强,并产生酸中毒。空气中二氧化碳的体积分数为1%时,感到气闷,头昏,心悸;4%-5%时感到眩晕。6%以上时使人神志不清、呼吸逐渐停止以致死亡。泄露应急处理
2、迅速撤离泄露污染区人员至上风处,并隔离至气体散尽,切断气源,然后抽排(室内)或强力通风(室外)。防护措施吸入迅速脱离现场至空气新鲜处。注意保暖,呼吸困难时给输氧。呼吸停止时,立即进行人工呼吸。就医。眼睛接触立即提起眼睑,用大量流动清水彻底冲洗。皮肤接触仅供学习与交流,如有侵权请联系网站删除谢谢3精品好文档,推荐学习交流若有皮肤冻伤,先用温水洗浴,再涂抹冻伤软膏,用消毒纱布包扎,就医急救电话:120火警电话:1191Charliecamefromapoorvillage.Hisparentshad__1__m
3、oneytosendhimtoschoolwhenhewasyoung.Theboywasverysad.Mr.Kinglivednexttohim.Hefoundtheboy__2__andhadpityonhimandlentsomemoneytohim.Sotheboycouldgotoschool.Hestudiedhardand__3__allhislessons.Whenhefinishedmiddleschool,themanintroducedhimtohisfriendinthetown.
4、Andhebegantowork. OnceMr.Kingwasseriouslyhurtinanaccident.Dying,heaskedCharlietotakecareofhisdaughter,Sharon.Theyoungman__4__andseveralyearslaterhemarriedthegirl.Helovedherverymuchandtriedhisbesttomakeherhappy.Heoftenboughtbeautifulclothesanddeliciousfoo
5、dforher.Hewasgoodatcookingandhecooked__5__forher.Soshebecameveryfatandshefeltitdifficulttowalk.Andonedayshefoundtherewassomethingwrongwithherheart.Herhusbandwasn’tathomeandshehadtogoto__6__atonce.Thedoctorslookedheroverandtoldher__7__eatmeat,sugar,chocolat
6、eandthingslikethese.Shewasafraid__8__thedoctor’swordsandwroteallthenamesofthefoodonthepaper.Whenshegothome,sheputthelistonthetableand__9__.Whenshereturnedhomethatafternoon,shefoundmanykindsoffood:meat,sugarandchocolateinthekitchen.Charliewasbusy__10__there
7、.Assoonashesawher,hesaidhappily,“I’veboughtallthefoodyoulike,dear!” 1.A.noB.someC.muchD.enough 2.A.lazyB.cleverC.carefulD.hard 3.A.didwellinB.waspooratC.wasworkingD.wasgoodfor 4.A.wasangryB.thoughthardC.agreedD.said“No.” 5.A.alittleB.afewC.manyD.
8、alot 6.A.restB.sleepC.hospitalD.work 7.A.shouldB.wouldC.toD.notto 8.A.torememberB.toforgetC.tocatchD.toteach 9.A.sleptB.wentoutC.cookedD.ate 10.A.readingB.seeingC.cookingD.writing 仅供学习与交流,如有侵权请联系网
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