时间:2019-01-02 作者:英语课 分类:政治经济


英语课

67 专家就防御恐怖袭击摩天大厦展开研究


SCIENCE REPORT- September 27, 2001: Planning for Safer BuildingsBy Nancy Steinbach


    (start at 1'00")This is the VOA Special English Science Report.
    Experts are beginning to study ways to (1)secure large buildings against (2)terrorist (3)attacks. They are reacting to the attacks that destroyed the World Trade Center buildings in New York September eleventh.
    The American Institute of Steel Construction has created a working group of experts to (4)investigate the reasons the buildings fell. The A-I-S-C is the organization responsible for developing the rules for the (5)design of steel buildings in the United States. Information developed by the working group will help A-I-S-C decide if the design rules should be changed.
    The south World Trade Center building fell fifty-six minutes after a (6)passenger plane (7)crashed into it. The north building fell about one-hundred minutes after a (8)similar crash. Each building was four-hundred-ten meters tall. Experts say the buildings could not (9)survive the extremely hot fires caused by the airplane (10)fuel.
    Engineers think the airplane crashes destroyed part of the structure of the buildings that kept them standing 1. The resulting fire weakened 3 the remaining structure. The buildings fell because the weight above the area where the planes hit was greater than the remaining structure could hold.
    Building experts say it is possible to build a (11)skyscraper that would survive such an attack. But they say the cost would be so huge that no one could pay for it. They also say that materials developed since the World Trade Center was built may give people more time to escape such a situation.
    The building experts say the most important consideration is to slow the destruction 4 caused by the fires. The World Trade Center's support structures were made of a strong (12)metal, steel. The heat of the fires caused the steel to expand, weaken 2, and fail. Today, builders can use concrete that has steel bars inside. Concrete is a mix of (13)cement, sand and small stones. Experts say it can survive better than steel alone can.
    The two tallest buildings in the world are the Petronas Towers in Kuala Lampur, Malaysia. Each is four-hundred-fifty-two meters tall. They were built of concrete and steel. Experts say their structures could provide a better chance of surviving than did the World Trade Center buildings. They also say the escape areas of the Petronas Towers are treated to keep out smoke and fire.
    This VOA Special English Science Report was written by Nancy Steinbach.


 


(1) secure[ si5kjuE ]adj.安全的, 可靠的, 放心的, 无虑的v.保护
(2) terrorist[5terErIst]n.恐怖分子
(3) attack[ E5tAk ]n.进攻, 攻击, (用语言)抨击, 批评, 疾病发作, 侵袭vt.攻击,
(4) investigate[ in5vesti^eit ]v.调查, 研究
(5) design[ di5zain ]n.设计, 图案, 花样, 企图, 图谋, (小说等的)构思, 纲要v.设计
(6) passenger[ 5pAsindVE ]n.乘客, 旅客
(7) crash[ krAF ]n.碰撞, 坠落, 坠毁, 撞击声, 爆裂声v.碰撞, 坠落, 坠毁, (指商业公司, 政府等)破产, 垮台
(8) similar[ 5similE ]adj.相似的, 类似的
(9) survive[ sE5vaiv ]v.幸免于, 幸存, 生还
(10) fuel[ fjuEl ]n.燃料vt.加燃料, 供以燃料vi.得到燃料
(11) skyscraper[5skaIskreIpE(r)]n.摩天楼, 高丛的烟囱
(12) metal[ 5metl ]n.金属
(13) cement[ si5ment ]n.水泥, 接合剂vt.接合, 用水泥涂, 巩固vi.粘牢


 



n.持续,地位;adj.永久的,不动的,直立的,不流动的
  • After the earthquake only a few houses were left standing.地震过后只有几幢房屋还立着。
  • They're standing out against any change in the law.他们坚决反对对法律做任何修改。
v.(使)变弱,(使)虚弱
  • You can weaken the tea by adding water.你可以加水把茶弄得淡一些。
  • We never weaken our efforts in face of difficulties.我们在困难面前从不软化我们的努力。
adj.虚弱的v.(使)削弱, (使)变弱( weaken的过去式和过去分词 )
  • The team has been weakened by injury. 这个队因伤实力减弱。
  • In his weakened condition, he is very susceptible to cold. 他身体很弱,因此很容易患感冒。 来自《简明英汉词典》
n.破坏,毁灭,消灭
  • The enemy bombs caused widespread destruction.敌人的炸弹造成大面积的破坏。
  • Overconfidence was his destruction.自负是他垮台的原因。
学英语单词
Achorion lebertii
alkaline reserve
allosyndisis
already-listed
angle of shear resistance
antenna inaequalis
Arbatax
atomic physicss
bar cutting machine
be one for the books
Bellegem
Bhagwan
biis
bilateral bearing
black mould of rice
Blyth Ra.
Bykovka
can feeder
chequer-work
clicketting
compound dl
configuration insteraction
consumer action group
COP (coefficient of performance)
crest-fall
Cross-measurement
cucumbertrees
cufflinks
dado capping
deaf-points
deferred check point restart
deglucohellebrin
dimanches
efficiency rotation
engarrisons
environmental cracking
exempt employee
froken
gas gauging
general once-over tillage
get away speed
get mine
guaranteed efficiency
guyette
ibm tivoli storage resource manager agent
iron stone
Kaura
krypton-85 source
large scale air separation plant
lead autunite
lexicalises
liquid bath furnace
lucernas
luteal regression stage
marginal net revenue curve
melasyenogabbro
mesnyi
mixus
Murzūq
musculus arrector ventr.
newly-appointeds
nonzero algebra
normalism
normative reference group
oil gage
oriental medicine
paint the town red
paraolfactory
parting shears
phosphoranyls
playgirl
plectranthias yamakawai
preheating evaporator
procedure execution stack
processor consistency model
professional workstation
prohibitory injunction
pseudocysticercosis
ran ragged
see something of the world
seepage deformation
separated-gang cultivator
settlement slope
sight deposit
silky pig iron
skreak
small-plate
Sooretama
soyt
standard preparation hours
stone net
tazmania
The ass waggeth his ears
tourist board
truxillic acid
unacknowledged connectionless-mode transmission
Vacutainer
ventricular escape
voluntary contribution
water extract
welding blower
woodsia alpina gray