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ut　the　stars?　In　some　ways，　stars　are　like　people.　They　are　born.　They　grow　old.　And　they　die.　A　star　is　born　from　dust　and　gas.　Slowly　the　dust　and　gas　make　a　ball.　The　ball　gets　very　hot.　Then　it　starts　to　give　off　light.　The　young　star　grows　into　a　giant.　Many　years　go　by.　The　older　star　begins　to　get　small　again.　At　st　its　light　goes　out.　The　star’s　life　is　over.

    Passage　15.Radio　and　Television

    Radio　and　television　are　very　pur　in　the　world　today.　Millions　of　people　watch　TV.　Perhaps　more　people　listen　to　the　radio.

    The　TV　is　more　useful　than　the　radio.　On　TV　we　　see　and　hear　what　is　happening　in　the　world.　However，　radio　isn’t　lost.　It　is　still　with　us.　And　lis