听力原文: Nowadays people travel, not from necessity, but for the joy and excitement of se
eing and experiencing new things. Traveling, of course, has now become a highly organize business. There are cars and splendid roads, express trains, huge ships and jet airliners, all of which provide us with comforts and security. Scientists have also invented machines that can explore outer space. Eventually there will be cheap day excursions to the moon and honeymoon on Venus. People will be able to travel from one planet to another by a space shuttle.
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