时间:2018-12-30 作者:英语课 分类:英语四级听力练习集锦


英语课

 


[00:07.21]UNIT12


[00:12.03]The Duct Tape


[00:14.00]Among the contents of 


[00:16.62]the toolboxes of most people 


[00:18.92]in the western world 


[00:20.23]you would expect to find 


[00:21.76]a hammer and nails, a drill,


[00:24.17]screwdrivers and some screws. 


[00:26.47]But if you were to 


[00:28.88]ask people from North America 


[00:30.41]what the most useful item 


[00:31.83]in their toolboxes was, 


[00:33.58]the majority of people would  


[00:35.88]undoubtedly tell you that 


[00:37.51]it was duct tape. 


[00:39.05]Indeed, it has become 


[00:41.02]an indispensable addition 


[00:42.66]to every person's perception 


[00:44.63]of what constitutes necessity.


[00:47.03]Maybe you have never 


[00:50.10]heard of duct tape. 


[00:51.63]It is the brand 


[00:53.16]name of a tape. 


[00:54.36]Not only is it a tape, 


[00:56.35]but also it is 


[00:58.08]a special kind of tape.


[01:00.05]The name of the tape 


[01:02.02]comes from the fact that 


[01:03.45]it was designed as 


[01:04.54]an insulating tape that 


[01:06.07]can be used in duct work


[01:07.82](channels or conduits that 


[01:09.90]are used for heat to travel 


[01:12.09]through to get to 


[01:13.51]different areas of a building).  


[01:15.04]Incredible though it seems, 


[01:17.89]someone actually put a picture 


[01:19.20]of a duck on the  packaging 


[01:20.95]of the tape from one manufacturer 


[01:23.03]perhaps just as a joke 


[01:25.33]or maybe because the design 


[01:26.86]artist did not understand 


[01:28.83]the origin of the name. 


[01:30.79]Neither the word duck 


[01:32.77]nor duct was on the label.  


[01:35.06]Presumably, it was assumed 


[01:37.36]that everyone could identify the product.


[01:39.77]You can recognize the genuine tape 


[01:43.27]because of its silver grey colour. 


[01:46.22]The colour was likely chosen 


[01:48.52]because it closely resembles 


[01:50.60]the colour of the pipes 


[01:52.46]it would be used on.


[01:53.99]That was the primary 


[01:55.63]intended use of the tape. 


[01:57.06]It was unlikely that 


[01:59.02]the inventor realized how many 


[02:01.10]other uses could be 


[02:03.18]found for this product.



学英语单词
a crack
above the mark
acceleration due to earth's gravity
adductor pollicis
alius
all at sea
analog monitor
antianginal drug
archdale
associated point defect
blasting gelation
board around
bonesetter
calorizing steel
cast-steel frame
Catharanthus roseus
centrifugal purfication
Chonbursan
compartmental system
cynoglossus arel
deciduous tree
deer-likest
donum
drop one's guard
Durand, Récif
dwarf rabbit
Enhanced Parallel Port
exochorion
extort
extract system
fair weather ship
family Dasypodidae
firelighter
flat screen printing machine
Flawinne
gentilest
GM_ultimately
gregersen
guaranteed annuity interest
gyttja
Hibb.
huo
input of learning
irrelevant to
isoridentin
kosovorotka
Little Wabash River
littoral right
lopid
machinability rating
MCMXC
mechanical fuel injection timing advance device
medium range air-to-air missile
melanoderma toxica
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non stock company
one time project
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outer-tank attachment
paired nucleus
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pectoraliss
photogrammetric compilation
political action
poly(ribo)some
proctocystotome
propylidone
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radiopelvimetry
recognized
redresser
rise from
rock rheological property
salo
secondary amniotic cavity
self-commutated
serial memorization
shell worms
short-period variable
shovel test
Sidharth
single-wheel grinder
speech recognition and synthesis equipment
Spirillum saprophiles
suckfests
Superior Oil Co.
supraantigen
sutura vomeroethmoidea
tertiary thickening
track end indicator
trichloromethylchloroformate
tummler
turbulence theory
uncontradicted
uniquely decodable code pair
Wadebridge
water puppet
wongge tooth
yarnwindle