《新概念英语》第四册 Lesson 29 The hovercraft

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 out of the water 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, and sat down on a road. Later it crossed the Channel, riding smoothly over the waves, which presented no problem.

Since that time, various types of hovercraft have appeared and taken up regular service. The hovercraft is particularly useful in large areas with poor communications such as Africa or Australia; it can become a 'flying fruit-bowl', carrying bananas from the plantations 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.

EGON LARSEN The Pegasus Book of Inventors

New words and expressions

生词和短语

Solent n. （英国的）苏伦特海峡

Norfolk Broads [ˈnɔrfək brɔdz] n. 诺福克郡的湖泊地区

hovercraft [ˈhʌvərkræft] n. 气垫船

合成词：hover + craft

The expedition made the journey to its source by hovercraft.

探险队乘气垫船到达了它的源头。

cushion [ˈkʊʃn] n. 座垫

同源词：quilt

matching curtains and cushions

颜色协调的窗帘与靠垫

ring [rɪŋ] v. 围

Ring the correct answer in pencil.

用铅笔圈出正确答案。

sensation [senˈseɪʃn] n. 轰动

sense 感觉 + ation 复合名词后缀

I had a sensation of falling, as if in a dream.

我有一种坠落的感觉，像在梦中似的。

dune [duːn] n. 沙丘

Here, massive dunes stretched in every direction as far as the eye could see

在这里，巨大的沙丘向四面八方延绵不绝，一望无垠。

plantation [plænˈteɪʃn] n. 种植园

plant 种植；植物 + ation 名词后缀 → 种植植物〔的地方〕；种〔树〕→ 大农场；造林

A system of forced labour was used on the cocoa plantations.

可可种植园中曾实行强迫劳役制。

hovertrain n. 气垫火车

参考译文

本世纪已研制出许多新奇的交通工具，其中最新奇的要数气垫船了。1953年，有一位50多岁名叫克里斯托弗.科克雷的原电子工程师，改行在诺福克郡的湖泊地区从事造船业，他向英国政府和工业界提出了他研究多年的一项计划。他的设想是：用一个低压空气或软垫来支撑船体，软垫周围用高压空气环绕。自那以后，人们很难决定是否应该将这种运载工具列为轮船、飞机，或是陆上交通工具，因为它是介于船和飞机之间。作为一个船舶技师，科克雷尔在寻找解决波浪阻力的方法，因为波浪阻力浪费掉了船在水面行驶的大量动力，从而限制了船的速度。他的解决办法是把船体提离水面，让船在一个气垫上行驶，气垫只有一两英尺厚。船底装上大量环状喷气嘴以实现这一目的。这样，船就能飞了，但飞不高。它的飞行限决于它所悬浮的水面或地面。

1959年，在苏伦特海峡进行的首次试航引起了轰动，气垫船先是在水面上行驶，后又登上海岸，爬上沙丘，最后停在路上。后来气垫船跨越英吉利海峡，平衡地在波浪上方行驶，波浪不再产生阻力。

从那以后，各种各样的气垫船出现了，并开始了定期航行服务。气垫船在非洲、澳大利亚等交通不发达地区特别有用。它能成为“飞行水果盘子”，把香蕉从种植园动到港口。大型的气垫班轮或许能跨越大西洋。未来的火车或许能成为“气垫火车”，靠气垫在单轨上行驶而不接触轨道，时速可达每小时300英里。气垫船的前途是不可限量的。

长按识别二维码可关注该微信公众平台