阅读下文并回答问题。Colorful fruit and vegetables are good for our health．Their natural co

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阅读下文并回答问题。
Colorful fruit and vegetables are good for our health．Their natural colors help protect our bodies from disease．Think about the colors of fruit and vegetables：the red of tomatoes，the orange of carrots，the green of kiwi fruit and the purple of grapes．
You can enjoy eating fruit and vegetables of all colors：green，yellow，orange，blue，purple and white．Each color is unique(独一无二的) and important to our health．These colors work together to protect our bodies．Scientists have studied them and discovered the good of colorful fruit and vegetables．The list below shows the good of some colors in fruit and vegetables：
*Red gives us a healthy heart．It can reduce the risk of heart disease．Red helps prevent cancer and improve our memory．
*Yellow gives us a healthy immune system（免疫系统）．It is also good for our eyes．
*White can keep cholesterol（胆固醇）at a low level．
*Green helps prevent cancer．It is good for our eyes，too．It also gives strong bones and teeth．
*Blue helps us keep a good memory as we grow old．It also helps fight cancer and heart disease．
So when you are buying or eating fruit and vegetables，remember： try different colors of fruit and vegetables．
小题1:How many kinds of fruit and vegetables are mentioned in this passage?
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小题2:How do the colors of fruit and vegetables protect our bodies according to the passage?
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小题3:Does blue help us keep a good memory as we grow old?
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答案

小题1:Four.
小题2:By working together to protect our bodies.
小题3:Yes, it does.

解析

试题分析：这篇短文主要介绍了有色蔬菜和水果对我们身体的好处及各种颜色的水果蔬菜的主要功用。
小题1:根据短文第一段描述，可知提到了四种水果和蔬菜，故答：Four.
小题2:根据第二段These colors work together to protect our bodies．描述，可知答：By working together to protect our bodies.
小题3:根据*Blue helps us keep a good memory as we grow old．描述，可知答案为是，故答：Yes, it does.
点评：本题中个别小题不能直接从文中找到答案，需要自己根据相关内容分析总结。一定要弄懂全文后再动手解答问题。书写答案时，注意首字母大写。为避免不必要的错误，只要能使用原文的就尽量使用原文回答问题，自己总结的答案注意人称和数的变化，要符合语法规则。