What has the telephone done to us．or for us．in the hundred years of its existence?A few effects suggest themselves at once．It has saved lives by getting rapid word of illness，injury，or fire from distant places．By joining with the lift to make possible the multi—story building or office building，it has made possible—for better or worse—the modem city By bringing about a great leap in the speed and ease with which information moves from place to place，it has greatly sped up the rate of scientific and technological changes and growth in industry．Beyond doubt it has seriously weakened，if not killed，the ancient art of letter writing It has made living alone possible for persons with normal desires；by so doing，it has played a mile in one of the greatest social changes of this century，the breakup of the multi generational house—hold It has made the war more efficient than before．Perhaps。though not provably(可证实)，it has prevented wars that might have arisen out of international misunderstanding caused by written communication．Or perhaps--again not probably—by magnifying and extending irrational(非理性的)personal disagreement based on voice contact．it has caused wars．Certainly it has extended the scope(范
围)of human conflicts，since it fairly spreads the useful knowledge of scientists and the nonsense of the ignorant(无知者)，the affection of the affectionate and the malice(恶意)of the malicious．
60．What is the main idea of the passage?
A The telephone has helped to save people from illness and fire．
B．The telephone has helped to prevent wars and conflicts．
C The telephone has made the modem city neither better nor worse．
D．The telephone has had positive as well as negative effects on us．
61．According to the passage，it is the telephone that ．
A．has made letter writing an art
B．has prevented wars by avoiding written communication
C．has made the world different from what it was
D has caused wars by extending human conflicts
62．The author describes the telephone as fair because it ．
A．saves lives of people in distant places B．enables people to live alone if they want to
C spreads both love and ill will D replaces much written communication
63．The writer’s attitude towards the use of the telephone is ．
A affectionate B．disapproving C．approving D．neutral(中立的)