Lan的ScalersTalk第四轮新概念朗读持续力训练Day

练习材料：

[Day 1773 2019-08-04]

Lesson 29-1 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 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.

任务配置：L0+L1+L4

知识笔记：

hovercraft    n. 气垫船; 气垫运载工具;

ringed  adj. 戴戒指的; 有环纹(或环斑)的;

v. 包围; 环绕; 给…戴上金属环(以便将来辨认); 绕…画圆; 把…圈起来;

v. 给…打电话; 发出铃声; (使) 发出钟声，响起铃声;

curtain    n. 窗帘; 帘; 幔; (遮隔房间的) 帷幔; 床帷; (舞台上的) 幕，幕布，帷幕;

v. 给(窗户或房间)装上帘子;

land vehicles    陆上交通工具

vessel    n. 大船; 轮船; (盛液体的) 容器，器皿; (人或动物的) 血管，脉管; (植物的) 导管;

air jets    网络 气体射流;

练习感悟：