很少有人知道,一栋高楼酒店在很短的时间内,就会被大火吞噬。有时,火焰会以每秒钟3至5米的速度向上蔓延。火场里,面对熊熊烈火、滚滚毒烟、灼烫高温和人所不知的恐怖燃烧现象,逃生者该怎样正确应对?
逃生者穿越着火区域时,将不得不承受更高的温度。火场中,火焰中心区域附近的温度高达300摄氏度左右。在高温的火场里,虽然人体能通过出汗,暂时将体内多余的热量排出,然而一旦长时间置身在高温环境中,逃生者的血压就会下降,变得虚脱、头脑昏涨、失去判断力,变得慌不择路。遇到这种情况,最好立刻退到远离火焰、且温度较低的角落,让头脑保持清晰,尽可能保持体力和精力继续前行。
然而,火场中的危机不只来源于大火,还有浓烟。四散的烟气,会时刻刺激着逃生者的眼睛使其充血流泪,产生剧烈疼痛。当烟气达到一定浓度时,就会使火场的能见度变得很低,逃生者会像被蒙上了双眼一样,只能用缓慢的速度摸索前行,浓烟甚至还会以三种方式致人死命。
首先,人若吸入高温烟气,气管会被烫伤并迅速肿胀,导致人无法呼吸,窒息而亡。其次,即使烟气温度不高,但若烟的浓度过高,使得空气含氧量下降到10%以下时,人处于其中,也会因为缺氧而死亡。最后,也是最致命的,是火场里的有毒烟气,人只需吸入几口,就会中毒致死。因此,你最好尽力做好防烟措施。
遭遇出人意料的障碍、惊慌失措的人群,是向楼上跑?还是向楼下跑?
高楼着火的过程就像竖着燃烧的木棒一样,火焰向上蔓延的速度会远远快于向下蔓延的速度。如果逃生者向楼上跑,也许可以暂时躲避还未从底层蔓延上来的大火,但多数高楼中通往顶层天台的门是锁住的,一旦烈火以极快的速度燃烧上来,逃生者就无法及时开门进入天台躲避,最后很有可能会葬身火海。
更可怕的是,电梯井这样的竖向井道形成的烟囱效应,会导致火场中的热空气不断向上升腾往竖井顶部积累,使得高楼顶层不断升温直至起火,从而形成顶层起火区,让身处顶层的逃生者,很难逃脱周围熊熊大火的围困。
因此,高楼着火,不论起火点是在你上面楼层还是在你下面楼层,都应该沿着消防通道迅速往楼下跑。
本集一位久经火场的消防员,将深入高楼火场,为您揭秘火场中的真相,并亲身示范如何有效应对各类火场灾害及突发意外,最终带领逃生的人们逃出高楼火场。
Today is Monday. I get up at 6:00. I have my breakfast at about 6:30.Then I clean my room, wash my face and brush my teeth. I have noodles for breakfast. I go to school at 7:00. I do morning exercises at 7:50.We have four classes in morning. At 11:30, I’m very hungry.
I have lunch at school. I go to bed at 12:00 in the noon. We have three classes in the afternoon. I have computer class and art classes. I like them very much. I go home at 5:30. I do homework after school. My sister、brother and I watch TV at 8:00 in the evening. Then I wash my face and brush my teeth. I go to bed at 10:00.
清晨唤醒了新的生命,为大自然带来了无穷的生命力。
太阳终于出来了,光芒像一个调皮的娃娃,在乳白色的雾气中一闪一闪的`。白衣舞女似的薄雾在阳光的作用下,慢慢隐去了。远方的房屋,树木逐渐露出了身躯。
夜幕徐徐的从空中垂下来,窗外,镰刀似的月亮斜挂在夜空。天幕上,繁星点点,像是黑色幕布上缀着的宝石。一缕缕清谈的月光,从窗户里直透到床前。
月亮透过班驳的树隙丝丝丝缕缕的挂下来,在地面上铺了一层碎银。每一片树叶都似乎静静的侵在牛乳里。清风阵阵,给人们送来了一丝凉意。每当这是,树叶就发出"沙沙沙"的声响,像在窃窃私语,又像在编织着美丽的梦。草丛里,各种不知名的虫子"蛐蛐","唧唧"的唱着歌儿,此起此伏,组成一部和谐的乐曲。我想,这是它们在开音乐会吧!
这就是那淡雅而又纯朴的清晨,金光万道,红日东升的正午和月色朦胧,繁星闪烁的夜幕!
可到现在,他才逐渐明白,自己所追求的并不是写些‘云想衣裳花想容 ’的艳歌,取悦帝王换取高官厚禄荣华富贵。那城市的繁华险些迷失了自己。于是,他选择了离开。离开那个不得令人开心颜的尘世,去追寻白鹿青崖,桃花美酒;去追寻雪花轩辕,一日孤帆。在名山大川中放纵性情,在自然的边缘寻找心灵的宁静。
古往今来,城市的繁华宛若绕在无数文人志士内心的梦,亘古不变的是追求,人们渴望在掌声与鲜花中生活,渴望在闪光灯的聚焦处绽放。然而,许多人却在尘世的浮华中迷失了自我,被利欲熏瞎了双眼,被躁动扰乱了本心,在浮躁的世界中渐行渐远。
秦桧奸佞当道,残害忠良,正是在利欲中迷失了自己;*破坏革命,谋权篡逆,正是在权力中迷失了自己······闪光灯下固然闪耀,人们却分不清前方的路与背影,只有站在边缘,方可清楚的看到灯下的全景,方可守住那颗浮躁的'心。
当今天才美少女作家蒋方舟,她拥有青春靓丽的外形,机敏犀利的谈吐,是媒体竞相追捧的宠儿,无时无刻不生活在公众的聚焦处,当她面对这些虚幻的浮名时,她淡定地说,我只不过是一个早熟的苹果。尘世的浮华没有侵扰她平静的心,面对人们的关注,她甘心身居草野。正是在这样的坚守中,她站在了自己人生的巅峰。
为什么陶渊明愿意在田野追逐菊花的烂漫?为什么苏轼愿意在山林‘竹杖芒鞋轻声马’?为什么辛弃疾执意要做灯火阑珊处的伊人?为什么于敏甘愿为祖国默默无闻三十载?因为在尘世的浮嚣中,他们选择了独上高楼,坚守自我。
在中国当下社会,经济快速发展,人们的心态却显得越来越浮躁,似乎早已没有了当初革命先烈们开天辟地的勇气与甘居幕后的虚心。淡泊明志,宁静致远。新世纪的我们,身居一个浮躁的社会,更应懂得坚守住那份恬淡,那份自然,那份决心。
Heiio,my name is Jim.I'm tweive years old.In the morning,I get up at six o'clock.I eat breakfast at six fifteen.After breakfast,I go to school.
Shool starts at seven o'clock.In the morning,I have four class.I eat lunch at twenty o'clock.In the afternoon,I have four class too.
I go to school at around six o'clock.I eat dinner at six thirty.After lunch,I do my homework.I go to bed at nine o'clock.
清晨,仿佛是一张墨不多的素描,淡雅而又纯朴。在薄薄的晨雾中,隐约可见绿树的绰约风姿,那一片生机勃勃的劲草,更是绿的耀眼,绿的鲜明,如同寡淡的清水溶入了一块方糖后的滋味,让人心醉。清晨又是新的一天的使者,她来了,驱散了黑夜,慈母般的降临人间,轻轻的从东边揭开了笼罩在大地上的浅褐色的绫纱。然后,又轻轻的,温情的唤醒了群山,唤醒了大地,唤醒了甜睡的生命,使天地顷刻间万象更新,一片光明,大地苏醒了,那么迷人,那么柔媚,像摇篮里初醒的婴儿在稚气的睁着水灵灵的大眼,滴溜溜的望着唤醒自己的母亲,那么天真,那么乖巧。
清晨唤醒了新的生命,为大自然带来了无穷的生命力。
太阳终于出来了,光芒像一个调皮的娃娃,在乳白色的雾气中一闪一闪的`。白衣舞女似的薄雾在阳光的作用下,慢慢隐去了。远方的房屋,树木逐渐露出了身躯。
夜幕徐徐的从空中垂下来,窗外,镰刀似的月亮斜挂在夜空。天幕上,繁星点点,像是黑色幕布上缀着的宝石。一缕缕清谈的月光,从窗户里直透到床前。
月亮透过班驳的树隙丝丝丝缕缕的挂下来,在地面上铺了一层碎银。每一片树叶都似乎静静的侵在牛乳里。清风阵阵,给人们送来了一丝凉意。每当这是,树叶就发出"沙沙沙"的声响,像在窃窃私语,又像在编织着美丽的梦。草丛里,各种不知名的虫子"蛐蛐","唧唧"的唱着歌儿,此起此伏,组成一部和谐的乐曲。我想,这是它们在开音乐会吧!
这就是那淡雅而又纯朴的清晨,金光万道,红日东升的正午和月色朦胧,繁星闪烁的夜幕!
I always get up early in the morning.I usually have my breakfast at half past six.I leave home half an hour later.
I'm never late for school.There are many classes in the morning.At a quarter past twelve,I have lunch.Sometimes,I'm not so busy in the afternoon.After school I have dinner with my family.After I finish my homework I often play some games with my family.Only then will I to relax.
Although this is a busy day, but I feel full and satisfied.
Today is Monday. I got up at 6:30 a.m.. Then I washed my face and ate breakfast. Milk, bread, egg and porridge are my favorites. My mother always gets up early and cooks for me. This morning, I drank a cup of milk and ate bread and an egg.
After breakfast, I went to school at 7:00. School started at 7:50 and I usually get there at 7:30. I had English, history, math and geography in the morning. I liked English very much, because my English teacher is very nice. After school in the morning, I went home at 11:30. Then I ate lunch and then had a short rest.
I went to school at 14:00. In the afternoon, I had four classes: music, biology, and two periods of Chinese. I liked Chinese, too, because Chinese is our national language and it's very beautiful. After school, I went home for dinner. After dinner, I spent half and an hour in my homework. Then I watched TV and played computer games.
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