"What colour do you think is the prettiest?" Joanna asks her friends.
     "Red!" says Jack, "It's the colour of fire."
     "No, yellow is prettier than red because it's the colour of the sun." cries Joy.
     "My favourite is blue," says Jim," the colour of the summer sky."
     "Green! It's the colour of grass and leaves and trees." Harry says.
     "Well, I like orange," says Alice.
      Each of them has their favourite colour, no two of them is the same. A storm (暴风雨) breaks (停), and
then a rainbow (彩虹) is up there in the sky. "Oh look, how lovely!" cries Jack, "all colours are beautiful and
they need each other just like we do."

1. Jim's favourite colour is _____.

A. summer sky
B. blue
C. yellow
D. red

2. What comes out in the sky after a storm.

A. wind
B. cloud
C. rainbow
D. rain

3. From the story we know friends need each other just like the _____.

A. colours
B. rainbow
C. sky
D. storm

    
     Imagine the year is 1666 and we can see a student called Isaac Newton. He's away from his university
for a holiday and at home with his family. Isaac Newton continues to study at home. He enjoys physics and
thinking about the mysteries of the world. 
     On a day when there is rain and sun at the same time he sees a beautiful rainbow in the sky. It has many
different colours, he is told that there are five. Newton wants to have his own rainbow because he wants to
look at it closely. He decides to do an experiment. On a sunny day he goes inside a small room and he makes
the room very dark. Then he makes a small hole and the sun comes inside, it's a small ray of light. It's white.
Newton takes a prism (棱镜) and holds it up to the light. The ray of light goes through the prism, but it isn't
white now there are many colours. The prism has split up (分解) the white light into different colours: Newton
has a rainbow.
     Newton looks at his rainbow carefully. He can see more than five colours, he can see seven. He says the
colours are: red, orange, yellow, green, blue, indigo and violet.
     But Newton is a scientist and he's always very interested in how things work. He has his rainbow but he
wants to know more. So he takes another prism and holds it up to the rainbow. The rainbow goes through the
second prism, but it isn't colourful now-it's white again. The prism has joined up the colours back into white
light. Newton is the first person to understand that light is a combination of all the rainbow colours together. 
     Newton also understands how we can see colour. Imagine a leaf in the sunshine. All the rainbow colours
fall on the leaf but it absorbs (吸收) all these colours. The only colour that is reflected (反射) is green, so the
leaf looks green. Different objects reflect different colours. And perhaps Newton's favourite fruit is an
orange-but what came first, the name of the fruit or the name of the colour?

(     )1. In 1666 Isaac Newton was a university student learningphysics.                           
(     )2. Newton was told that there were five colours in a rainbow and he believed it.            
(     )3. Newton used a prism to split up the white light from the sun.                            
(     )4. Newton understood that light was a combination (复合) of all the rainbow colours together.
(     )5. Different objects reflect the same colours.                                              

     Parents always ask, "How can I get my child to eat fruits and vegetables?" One answer is to teach
your children to fill their bodies with colour.  Fruits and vegetables come in so many beautiful colours.  
Every different colour is good for us.
     Orange and yellow fruits and vegetables such as sweet potatoes and oranges are healthy. They have
many kinds of vitamins (维生素), such as Vitamins A, B and C.Dark green foods like spinach (菠菜)
are very healthy.Red foods like tomatoes and strawberries have Vitamin C.Blue or purple fruits and
vegetables such as blueberries and red cabbage are also good for you.
     What about the colour white? White is not a colour of the rainbow (彩虹) ! White bread is not very
healthy,  but whole wheat bread is good for you.  Too much sugar and salt are not good for you.  Of
course, some white foods, like milk and tofu are very good for you. Finally, remember the most important
thing. Parents need to be good examples. You need to eat a rainbow, too!
1. From the passage we know that _______ are red foods.
A. milk and tofu                    
B. spinach and red cabbage
C. tomatoes and strawberries          
D. sweet potatoes and oranges
2. Which of the following foods has no Vitamin C in it?
A. Tofu.                    
B. Tomatoes.
C. Strawberries.              
D. Oranges.
3. In the last sentence, "eat a rainbow" means "_______"
A. eat different colours
B. eat the seven colours
C. eat foods of different colours
D. eat the rainbow in the sky
4. The main idea of the passage is _______.
A. colour foods have many vitamins
B. dark green foods are very healthy
C. eating much sugar and salt is not good for you
D. eating fruits and vegetables of different colours is good for you