外研版高中英語必修2module5newspapersperiod4課時(shí)作業(yè)-在線瀏覽
2025-02-01 23:43本頁面
【正文】 ite called Early Bird made this program possible. Radio waves go out from the sending station in a straight (層 ) in the atmosphere(大氣 ) act_like_a_mirror for some of these bounce(反射 ) down from the layers and e back to earth. Television programs are carried on a different kind of radio waves do not bounce of the “mirror” ． They go straight through the layers into send television programs around the world， they must be picked up by a satellite high in space and sent back. Early Bird is in an orbit 22,300 miles it travels with the earth，it seems to be standing is always over the same place in the Atlantic programs are sent up to Early sends them to one third of the earth. Two other satellites like Early Bird are now in orbit(軌道 )． The three satellites can send television programs around the world. 1． From this passage we can see that Early Bird is the name of ________. A． an English program B． a satellite C． a kind of radio wave D． a station 2． From this passage we can see that ________. A． Early Bird was the first satellite of its kind in history B． Early Bird can be used only in the morning C． Early Bird picks up astronauts in the Atlantic Ocean D． Early Bird is only used to send radio programs 3． The underlined phrase “act like a mirror” in the second paragraph refers
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