阅读理解In1950anordinarybutimaginativeelectricalengineernamedChristopherCockerellbegananexperimentthatwassoontochangetheworld．Hecameupwithanideatomakeboatsgofaster

Question

阅读理解

　　In 1950 an ordinary but imaginative electrical engineer named Christopher Cockerell began an experiment that was soon to change the world．He came up with an idea to make boats go faster by using a vacuum cleaner(真空吸尘器)．

　　Using his wife’s vacuum cleaner he was able to reverse(使倒转)the motor so that it blew instead of sucking ．The air that blew out beneath(下面)acted as a cushion(垫子)against surfaces．Years later his principle(原理)of cushioned air made it possible for the first hovercraft(气垫船)to be successfully built and tried out．A journey along the Amazon River proved to the world that the hovercraft was both wonderful and useful．

　　The invention that began in the kitchen and the boatyard of an ordinary home led to a thousand other inventions．Today hovercrafts carry passengers in comfort over rough channels and seas．

(1)

The passage is mainly about ________．
[　　]
A．	Christopher an ordinary but imaginative engineer
B．	Christopher and his wife’s vacuum cleaner
C．	Christopher and his invention
D．	Christopher and his discovery

(2)

The aim of the experiment in 1950 was ________．
[　　]
A．	to speed up the boats
B．	to change the world
C．	to make the boats more comfortable
D．	to improve vacuum cleaner

(3)

The underlined word “sucking” in the second paragraph probably means ________．
[　　]
A．	taking with great force
B．	drawing with great force
C．	pushing with great force
D．	pulling with great force

(4)

Which of the following can push the hovercraft forward rapidly?
[　　]
A．	Cushioned air．
B．	The air that sucked in．
C．	The air that blew out．
D．	The air on the surface．

Answer 1

答案：1．C;2．A;3．B;4．C;解析：(1) 本题考查对文章中心思想的理解。文章介绍了Christopher和他发明的气垫船，而不仅仅是“发现”原理。 (2) 文章第一段提到1950年Christopher提出一个想法，使用真空吸...