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
Abidan
antisymmetrical ket
arch graphic
beijingers
break bread
brick wall without plastering
by gum
cleavage fan
Colmonell
controlled rolling
corespondent shoes
Cornish engine
corride
declaration of withdrawal
dielectric heat seasoning
dorso-alar-region
double dove tail key
drive identifier
durlacher
E-scan
effective utilization rate of energy
electron beam treatment
empirical significance level
essay-type examination
Ettingshausen-Nernst coefficient
external-combustion cycle
fast colo(u)r salt
filled hold
fixed cellular network
gas-solid contactor
ger-
Hayasaka-tōge
heliocentricism
hemizygosity
highland glacier
hippoboscidaes
impleading
interference frequency
internal axial-flow pump
internal friction angle
internal interference effect
intersegmental
jedi
koku
lampros
lexicality hypothesis
lime-malachite
lun li wu tao
machine erector
Majagua, Pta.
mckeogh
mean lowest discharge
motif-like
movable weir
nozzles and other connections
nssc
nucleated domain
oblique cleavage
offspring task
opinings
pack saddles
paper chasers
piranhas
Pizacoma
plate juncture
plates of unequal thickness
Populus tremuloides
precisions
purbecks
push polling
rake teeth
rapid transmission data system
reputability assessment
RINT
rise of yield point
root sealer bead
Rosenhcim bismuth test
rugosin
schama
screw lift
series DC machine
shrinkage theory
side shielded
speak for herself
spectrobolometers
sport utilities
Stinkomalee
strapdown inertial navigation equipment
Streptopus simplex
synplasm
teamworker
tfc
thermodynamic principle
thick-spaced
underwate sound projector
universal coupling
Upper Saranac L.
wheel locked testing
who wants ...?
wood guide
yuls