A.Sports and international news.

　　B．A menu of important news.

　　C.The most important news.

　　D．What you are interested in.

　　29．From the text, we can infer that ________.

　　A．newspapers will win the competition among the different media

　　B．newspapers will stay with us together with other media

　　C．television will take the place of newspapers

　　D．some media will die out

　　30．The underlined phrase “feed off” in the last paragraph means ________.

　　A.depend on

　　B．compete with

　　C．fight with

　　D．kill of

　　B

　　Why should mankind explore space？Why should money, time and effort be spent exploring and resear­ching something with so few apparent benefits？Why should resources be spent on space rather than on conditions and people on Earth? These are questions that, understandably, are very often asked.

　　Perhaps the best answer lies in our genetic makeup (基因构成) as human beings.What drove our ancestors to move from the trees into the plains, and on into all possible areas and environments? The wider the spread of a species, the better its chance of survival.Perhaps the best reason for exploring space is this genetic tendency to expand wherever possible.

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