时间:2018-12-24 作者:英语课 分类:新概念英语85年上外美音版


英语课

   Lesson 35 The Pegasus Book of Inventors 发明者的灵感

Many strange new means of transport have been developed in our century, the strangest of them being perhaps the hovercraft. In 1953, a former electronics engineer in his fifties, Christopher Cockerell, who had turned to boat-building on the Norfolk Broads, suggested an idea on which he had been working for many years to the British Government and industrial circles. It was the idea of supporting a craft on a' pad ', or cushion, of low-pressure air, ringed with a curtain of higher pressure air. Ever since, people have had difficulty in deciding whether the craft should be ranged among ships, planes, or land vehicles--for it is something in between a boat and an aircraft. As a shipbuilder, Cockerell was trying to find a solution to the problem of the wave resistance which wastes a good deal of a surface ship's power and limits its speed. His answer was to lift the vessel 1 out of the water by making it ride on a cushion of air, no more than one or two feet thick. This is done by a great number of ring-shaped air jets on the bottom of the craft. It 'flies', therefore, but it cannot fly higher--its action depends on the surface, water or ground, over which it rides.

The first tests on the Solent in 1959 caused a sensation. The hovercraft travelled first over the water, then mounted the beach, climbed up the dunes 2, and sat down on a road. Later it crossed the Channel, riding smoothly 3 over the waves, which presented no problem.

Since that time, various types of hovercraft have appeared and taken up regular service--cruises on the Thames in London, for instance, have become an annual attraction. But we are only at the beginning of a development that may transport netsea and land transport. Christopher Cockerell's craft can establish transport works in large areas with poor communications such as Africa or Australia; it can become a 'flying fruit-bowl', carrying bananas from the plantations 4 to the ports, giant hovercraft liners could span the Atlantic; and the railway of the future may well be the 'hovertrain', riding on its air cushion over a single rail, which it never touches, at speeds up to 300 m.p.h.--the possibilities appear unlimited 5.



1 vessel
n.船舶;容器,器皿;管,导管,血管
  • The vessel is fully loaded with cargo for Shanghai.这艘船满载货物驶往上海。
  • You should put the water into a vessel.你应该把水装入容器中。
2 dunes
沙丘( dune的名词复数 )
  • The boy galloped over the dunes barefoot. 那男孩光着脚在沙丘间飞跑。
  • Dragging the fully laden boat across the sand dunes was no mean feat. 将满载货物的船拖过沙丘是一件了不起的事。
3 smoothly
adv.平滑地,顺利地,流利地,流畅地
  • The workmen are very cooperative,so the work goes on smoothly.工人们十分合作,所以工作进展顺利。
  • Just change one or two words and the sentence will read smoothly.这句话只要动一两个字就顺了。
4 plantations
n.种植园,大农场( plantation的名词复数 )
  • Soon great plantations, supported by slave labor, made some families very wealthy. 不久之后出现了依靠奴隶劳动的大庄园,使一些家庭成了富豪。 来自英汉非文学 - 政府文件
  • Winterborne's contract was completed, and the plantations were deserted. 维恩特波恩的合同完成后,那片林地变得荒废了。 来自辞典例句
5 unlimited
adj.无限的,不受控制的,无条件的
  • They flew over the unlimited reaches of the Arctic.他们飞过了茫茫无边的北极上空。
  • There is no safety in unlimited technological hubris.在技术方面自以为是会很危险。
学英语单词
ambipolar diffusion
Antinfan
apodized aperture
assfuck
bankfull flow
Banyumas
basketbrawl
bemouths
biosatellites
blue-iron-earth (vivianite)
Bonin
calcium autunite
calorise(-ze)
calyptothecium urvilleanum
chained libraries
change interval
circle template
clarificator
constant-temperature furnace
crude metal
cryptographic key data set
cybernaut
cystinamine
Demanol
denoises
DR (data recorder)
dulleth
eternal sleep
exilient
familial dysbetalipoproteinemia
female fittings
first foreign application
fissidens mangarevensis
generalized attenuation constant
gloria
graphings
grego
gun-laying radar
hanami
hemidysergia
high-precision levelling
hunting boot
idiom
inductor-type magnoto
industrial aromatic hydrocarbons
intensive quantity
inter-american commercial arbitation commission
keep the ball up
kerchner
kinetocardiograph
laser wavelength stability
linemaker
low-level inversion
Mascarene Is.
mast caline
MGPPP
mo(u)lding surface
Murrupula
non-wettable
oetothiamine
of wide fame
opportunity cost value
orgasmatrons
original location
Palmichal
phantosmias
pirinskis
porites lichen
positive phototaxis
preadmonished
pulpolabial
purser rigged and parish damned
quirked
ratiometric
reso meter
rhinocerotid
sawmills
schau
Scifi
scopeandrang
shuffle washer
Siberianist
Sium latifolium
skeletonisation
smoothing with float
spurn gear
stable granularity
star anise oil(illicium verum)
stir-in resin
stoill
stopway test
sum of squares between groups
tee drive unit
Teebaconin
tengas
tetraodon nigropunctatus
thixotropicfluid
total function
tourist information center
transpontine
tunelessly
wherify