Question

　　In the late 1500s,a large powerful gun was placed on top of the Signal Hill,in Newfoundland,to prevent attacks from the outside.Flags were also flown there to warn sailors of bad weather.It's fitting,then,the Italian Gulielmo Marconi should have chosen this site to receive the world's first radio signal in Morse code from England on December 12,1901.

　　Marconi,combining earlier ideas with his own,led us to a new communications age.For the next 50 years,until the appearance of television,radio ruled the air waves.

　　Today,it's the TV that rules.No single person can say to have invented the television.

In 1884,the German Paul Nipkow invented a device that sent pictures mechanically,and in 1906,Boris Rosing,a Russian,used a ray and a disc to create the world's first TV system. Then in the early 1920s,another Russian,Vladimir Zworykin,invented a picture display tube.He took out a patent for color TV,even though it wouldn't be developed for another 25 years.

　　In 1924,a Scot entered the scene—John Logie Baird.He first succeeded in sending a moving picture and a year later got the first actual TV picture.In 1926,Baird showed TV in a London laboratory.Two years later in New York,Felix the Cat became the first TV star.

TV excited everyone's imagination,but hardly anyone had a set,with just two thousand in use worldwide in the mid-1930s.

　　Since the late 1940s,TV technology has developed very quickly.Computers may finally be combined with all televisions to give people a total all-in-one communications network.

Today,it's possible to sit and watch TV in the middle of a forest or in the Arctic.It's surprising when one considers that Marconi was on the Signal Hill in the same century.

1.We can learn from the text that the Signal Hill was once used as ________.

A.a site of communication

B.a weather station

C.a factory to produce weapons

D.a battle field to fight enemies from the outside

2.What is the main idea of Paragraphs 4 and 5?

A.London is the place where TV is invented.

B.John Logie Baird was the chief inventor of television.

C.A number of people contributed to the invention of television.

D.Russian scientists played an important role in the invention of television.

3.Which of the following would the writer probably agree with?

A.Rarely do people listen to the radio nowadays.

B.Radios and televisions will disappear completely in the near future.

C.Radio and television communications developed surprisingly fast in the 20th century.

D.Marconi contributed a great deal to the development of computer communication.

Answer 1

答案：A;C;C
解析：

1.解析:Signal Hill 信号山,顾名思义,可作出初步判断;再看第一段陈述的具体事实:该山上曾竖旗用以向水手们预告恶劣天气,意大利人Marconi曾在那儿接收世界上最早的来自英国的无线电信号。至于山顶上曾安一门大炮,用以防止来犯之敌,并不等于曾是战场。 答案:A 2.解析:从德国人Paul Nipkow到俄罗斯人Boris Rosing和 Vladimir Zworykin再到苏格兰人 John Logie Baird,数代发明家承前启后,使电视机由幼稚到成熟。 答案:C 3.解析:本题可用排除法先逐一排除与文章内容不符的选项。全文的最后一段是答题依据。 答案:C