阅读理解。 Parents always ask, 'How can I get my child to eat fruit and vegetables?' One answer is teach your children to eat different fruits and vegetables of different colors. Orange: Orange and yellow fruits and vegetables such as sweet potatoes and oranges are healthy. They are rich in Vitamin A , B and C. Green: Dark green foods likes spinach are very healthy. Red: Red foods like tomatoes and strawberries have Vitamin C. Blue: Blue or purple fruits and vegetables such blueberries and red cabbage are also good for you. What about color white? White bread isn't very healthy, but whole wheat bread is good for you. Too much sugar and salt aren't 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. The underlined word 'Vitamin' means '_______' in Chinese. A. 胡萝卜素 B. 维生素 C. 激素 D. 生长素 3. Which of the following foods has no Vitamin C in it? A. Tofu B. Tomatoes C. Strawberries. D. Oranges. 4. In the last sentence, 'eat a rainbow' means '_______'. A. eat different colors B. eat the seven colors C. eat foods of different colors D. eat the rainbow in the sky 5. The main idea of the passage is ________. A. color foods have many vitamins B. dark green foods are very healthy C. eating much sugar and salt isn't good for you D. eating fruits and vegetables of different colors is good for you