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        The colour systems (系统) 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 (原色) 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 theater.
         Most artists recognize red, yellow and blue as the three basic primary colours. These primaries are the
pure colours which can not be created by mixing any other colours.
         In the print industry, cyan, magenta, yellow and black are used as the primary colours. When you mix all
the colours, the result is gray.

1. __________ on the colour systems.

[ ]

A. Scientists and artists have the same idea
B. Scientists agree with artists
C. Scientists and artists have different ideas
D. Some of their ideas are the same

2. How many colour systems are mentioned in the passage?

[ ]

A. Two.
B. Three.
C. Only one.
D. Four.

3. If a scientist wants to get yellow, he must _________.

[ ]

A. mix blue and green
B. mix blue and red
C. mix red and green
D. mix red, green and blue

4. Which of the following is NOT true?

[ ]

A. Red, green and blue are used in television sets.
B. If scientists want to get white, they will mix red, yellow and blue together.
C. Most artists think red, yellow and blue are the pure colours.
D. In the print industry, if you mix all the colors, you will get gray.

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完形填空

       Do you know  1  to make super fruit ice cream? Follow the steps below and you can make your own
super fruit ice cream.
       In   2  a bowl of fruit ice cream, you will need: a cup of yogurt and honey, two cups of milk, two
teaspoons of sugar and lemon juice, some apple sauce and cheese, one small watermelon. The procedure(过程）of making super fruit ice cream:
       ★Step l: Peel the watermelon.  3 .
       ★Step 2: Heat the milk. Add the sugar   4 it. Cool it.
       ★Step 3: Pour the yogurt, lemon juice and honey into a bowl.  5  .
       ★Step 4: Put the apple sauce and cheese into the blender.  6  the blender.
       ★Step 5:   7   the ingredients from the blender.  Pour them into the   8 bowl. Cool them in the fridge.
Stir(搅拌)them in and put the watermelon pieces   9   the top. Put them into the fridge   10 for about 3
hours.

(     )1.A.when
(     )2.A.make
(     )3.A.Cut it up
(     )4.A.on
(     )5.A.Mix it up
(     )6.A.Turn
(     )7.A.Take
(     )8.A.mix
(     )9.A.on
(     )10.A.away

B. how
B. makes
B. Cup up it
B. to
B. Mix up it
B. Turn on
B. Taking
B. mixes
B. in
B. again

C. what
C. making
C. Cut them up
C. with
C. Mix them up
C. Turn off
C. Take out
C. mixing
C. into
C. first

D. where
D. made
D. Cut up them
D. at
D. Mix up them
D. Turn down
D. Taking out
D. mixed
D. out of
D. next

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Daisy's class had a painting lesson with Ben's class. The teacher told them 1 different colors. "There are three primary colors," she said. "Who knows 2 ?" All the children 3 their hands. Everyone knew the primary colors: red, blue and yellow. " 4 know what a secondary color is?" the teacher asked next. Ben knew. He put up his hand. " It's a color made from two primary colors," he said. "Can you give me 5 ?" the teacher asked. "Orange," Ben said. "We make orange by 6 red and yellow." Daisy put up her hand. "Purple is 7 secondary color," she said. "We make purple by mixing red and blue." "Good," the teacher said." Now I want you all 8 a secondary color. " The children began mixing colors. The teacher 9 round the class. She looked at all the colors the children were mixing. She 10 Harry's easel(画架). "What color is that?" she 11 him. "I don't know," he said. "I mixed all the primary colors 12 ," he said. "I wanted to see what color 14 ." "That 15 secondary color," the teacher said. "That 16 mud(泥巴)!"
( )1. A. to make ( )2. A. what they are ( )3. A. put down ( )4. A. Does anyone ( )5. A. an idea ( )6. A. mix ( )7. A. another ( )8. A. do ( )9. A. walked ( )10. A. came to ( )11. A. said ( )12. A. each ( )13. A. can I get ( )14. A. is ( )15. A. looks	B. what to make B. what are they B. put up B. Is anyone B. a way B. mix up B. the other B. to do B. goes B. came B. said to B. then B. I can get B. is B. looks like	C. how to make C. where they are C. put off C. Does someone C. an example C. mixing C. other C. make C. ran C. went C. asked C. together C. did I get C. is not C. looked	D. why to make D. where are they D. put on D. Is someone D. a color D. to mix D. one D. to make D. talked D. visited to D. asked for D. all over D. I got D. is not a D. looked like

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