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  3. Television, the modern wonder of electronics, brings the world into your own home in sight and sound. And the word ’ television’

Television, the modern wonder of electronics, brings the world into your own home in sight and sound. And the word ’ television’

admin2012-02-01  29
问题     Television, the modern wonder of electronics, brings the world into your own home in sight and sound. And the word ’ television’ means seeing far.
    Television works in much the same way as radio. In radio, sound is changed into electro-magn - etic waves which are sent through the air. Experiments leading to modern television took place more than a hundred years ago, By the 1920s inventors and researchers had turned the early theories into working models. Yet it took another thirty years for TV to become industry.
    The influence of TV on the life of the people is incalculable; it can influence their thoughts and their way of life. It can also add to their store of knowledge. Educational TV stations teaching in various subjects. Some hospitals use TV for medical students to get close - up views of operations. At first television programs were broadcaster in black - and - white. With the devel-opm - ent of science and technology, the problem of how to telecast them in full color was solved and by the middle 1960s the national networks were broadcasting most of their programs in color.
    The programs that people watch are not only local and national ones, since the launching of the first communications satellite, more and more programs are telecast ’ live’ from all over the world. People in San Francisco were able to watch the 1964 Olympic in Tokyo. And live telecasts now come from outer space. In 1969, the first astronauts to land on the moon televised their historic’ moon walk’ to viewers on the earth. Since then, astronauts have regularly sent telecast to the earth.
The word ’ incalculable’ means________.
选项 A、easy to tell
B、very great
C、difficult to tell
D、very small
答案B
解析 这是一道有关语意的题型，题干要求考生根据上下文推测单词“incalculable”的意思。首先从incalculable在句“The influence of TV on the life of the people is incalculable”所处的位置分析，整个句子是系表结构，主语是influence，可见本题要考生推断电视对人们的生活影响如何，第三段首句首先阐明电视对人的思维和生活方式有影响，接着提到知识、教育等方面，可见选项B最符合题意。
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