单选题 Questions 21-25 are based on the following passage:
Obviously television has both advantages and disadvantages.
In the first place, television is not only a convenient source of entertainment, but also a cheap one. With a TV set in the family people don't have to pay for expensive seats at the theatre, or the cinema. Some people, however, think that this is where the danger comes from, The television viewers need do nothing. He makes no choice and exercises, no judgment. He is completely passive.
Television keeps one informed about what is happening. The most distant countries and the strangest customs are brought right into one's sitting room. On television everything is much more living, much more real. Yet here again there is a danger. We get so used to looking at the movements on it, so dependent on its pictures that it begins to control our lives. People often say that their television sets have broken down and that they have suddenly found that they have far more time to do whatever they are interested. It makes us think, doesn't it?
There are many other arguments for and against television. We must realize that television itself is neither good nor bad. It is the uses that determine its value to society.

单选题 What is the major function of paragraph 1?

【正确答案】 B

【答案解析】[注释] 这篇文章非常典型，是常见的英语篇章结构：第一段提出主题；第二、三段为具体内容；最后一段为总结段落。A项没有依据；C项是最后一段的内容；D项只能算是细节信息。

单选题 Television, as a source of entertainment, is______.

【正确答案】 D

【答案解析】[注释] 首先用题干上的关键词“entertainment”为目标找到本题的依据句“television is not only a convenient source of entertainment, but also a cheap one.”。就很容易可以确认D为正确答案。其他选择项属于错误信息或无关信息。

单选题 Why are some people against TV?

【正确答案】 B

【答案解析】[注释] 只有B项的内容在文中由依据句“The television viewers need do nothing. He makes no choice and exercises, no judgment. He is completely passive.”所确认。A和C项在文中没有涉及，属于无关信息；D项回答题干问题有前后矛盾之处。

单选题 One of the most obvious advantages of TV is that______.

【正确答案】 A

【答案解析】[注释] 本题可以先用常识进行判断，然后在文章中找到依据句确认。本题的依据句是“Television keeps one informed about what is happening.”。其他选择项的可能性相对较低。

单选题 According to the passage, whether TV is good or not depends on______.

【正确答案】 C

【答案解析】[注释] 本题的依据句是文章的结尾句“We must realize that television itself is neither good nor bad. It is the uses that determine its value to society.”。其他选择项在文中没有出处，属于无关信息。