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5£®The colour systems used by scientists and artists are completely different£®An artist will mix blue and yellow paint to get a shade of green£» a scientist will mix green and red light to create yellow£®The printed page in a magazine is yet another system£®Scientists recognize the light primaries£¨ÔÉ«£© are red£¬green and blue£®When mixed£¬red and green light rays produce yellow£¬blue and green produce cyan£¬red and blue produce magenta£®Red£¬green and blue mix to create white light£®This colour model is used in computer monitors£¬television sets and theaters£®
Most artists recognize red£¬yellow and blue as the three basic primary colours£®These primaries are the pure colours which cannot be created by mixing any other colours£®
In the print industry£¬cyan £¨ÇàÉ«£©£¬magenta £¨ ×ϺìÉ«£©£¬yellow and black are used as the primary colours£®When you mix all the colours£¬the result is grey£®
31£®How many colour systems are mentioned in the passage£¿B
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32£®If a scientist wants to get yellow£¬he will probablyC
A£®mix blue and green B£®mix blue and red
C£®mix red and green D£®mix red£¬green and blue
33£®Which of the following is NOT true£¿B
A£®Red£¬green and blue are used in television sets£®
B£®Most artists think red£¬yellow and blue are the pure colours£®
C£®In the print industry£¬if you mix all the colours£¬you will get gray£®
D£®Scientists agree with artists on the colour systems£®
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½â´ð ´ð°¸£º31£®B ϸ½ÚÀí½âÌ⣮¸ù¾ÝµÚÒ»¶Î¾ä×ÓThe colour systems used by scientists and artists are completely different£®An artist will mix blue and yellow paint to get a shade of green£» a scientist will mix green and red light to create yellow£®The printed page in a magazine is yet another system£®¿ÉÖªÎÄÖÐÌáµ½ÁË3ÖÖÑÕɫϵͳ£º¿ÆÑ§¼ÒʹÓõÄϵͳ£»ÒÕÊõ¼ÒʹÓõÄϵͳºÍÓ¡Ë¢ÐÐҵʹÓõÄϵͳ£®¹ÊÑ¡B£®
32£®C ϸ½ÚÀí½âÌ⣮¸ù¾ÝµÚ¶þ¶Î¾ä×Óred and green light rays produce yellow£¬¿ÉÖªºìÉ«ºÍÂÌÉ«µÄ¹âÏß²úÉú»ÆÉ«£¬¹ÊÑ¡C£®
33£®Bϸ½ÚÅжÏÌ⣮¸ù¾ÝµÚ¶þ¶Î¾ä×Óred and blue produce magenta£®Red£¬green and blue mix to create white light£®¿ÉÖª´ó¶àÊýÒÕÊõ¼ÒÈÏΪºìÉ«£¬»ÆÉ«ºÍÀ¶É«ÊÇ´¿´âµÄÑÕÉ«ÊÇ´íÎóµÄ£¬¹ÊÑ¡B£®
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