A
KEY→P8
范畴:人与自我 主题:身心健康 体裁:说明文 难度:★★★★★ 建议用时:8分钟 评价:/4
Dietitians(营养学家) often tell people to "eat the rainbow"—eating all kinds of colourful foods providing vitamins and minerals that can't be replaced with supplements to keep your body healthy.

A food company examined buyers' behaviour globally across hundreds of stores. According to experts from the company, our plates look very colourful, with purple foods particularly in fashion. This is indeed the case. Walk through any supermarket and you will find purple foods are showing up on the shelves: purple cauliflowers(花椰菜), purple sweet potatoes and purple cabbages.
The increasing popularity of purple foods in the market is unsurprising, showing how attentive people have become to health in recent years. People have long known that the darker the colour of the food is, the more antioxidants(抗氧化物质) and nutrients it will have. In fact, people were encouraged to eat more purple foods after a study found that those who ate purple fruits and vegetables regularly often had low cholesterol(胆固醇) and a reduced risk of getting high blood pressure.
Research shows that these foods get their purple colour from the anthocyanin(花青素). They have been linked with antioxidants and anti-aging special qualities in the body. Purple foods help improve bone health, lower the risk of some cancers and improve memory. Take purple sweet potatoes for example. While the standard sweet potato is packed with health benefits of its own, the purple sweet potato is even better for us. These brightly-coloured sweet potatoes have a similar taste to their orange siblings, which are also filled with the anthocyanin. Therefore, purple sweet potatoes help with digestion and have anti-inflammatory special qualities.
Nutrition advisers agree that purple foods are full of natural health benefits. "The benefits of antioxidants have long been discussed. They are also known to fight disease, keep you looking younger and be good for your heart—so, why not eat them?" one says.
()1. According to nutrition experts, we should eat all kinds of colourful foods often .
A. because richly-coloured foods are popular in supermarkets
B. although vitamin and mineral supplements can replace them
C. as they can provide us with vitamins and minerals that we need
D. because people have taken notice of the importance of health these years
()2. All of the following have made the purple foods popular in recent years EXCEPT .
A. the darker the colour of the food is, the healthier it will be
B. more and more purple foods are available nowadays
C. people are getting to realize that being healthy is important
D. a study found that those who often ate purple foods were healthier
()3. Which has the same meaning as the underlined word "siblings" in Paragraph 4?
A. Brothers or sisters.
B. Fathers or mothers.
C. Uncles or aunts.
D. Sons or daughters.
()4. What's the best title for the passage?
A. Eating purple foods for your health
B. Getting the anthocyanin from purple foods
C. Purple foods—a new kind of product
D. Nutrients—something our body needs

A
人们应该多吃紫色食物，它们有降低胆固醇、降低患高血压的风险、促进消化等功效。
1. C 细节理解题。由第一段内容可知，吃各种颜色的食物能给我们提供维生素和矿物质。
2. B 细节理解题。由第三段可知，颜色越深的食物，抗氧化物质和营养含量就越高，也就越健康；现在人们逐渐意识到健康是重要的；研究表明经常吃紫色食物的人更健康。而时下人们可获取越来越多的紫色食物并不是紫色食物受欢迎的原因。
3. A 词义猜测题。这些色彩鲜艳的甘薯与它们橘色的同类具有相似的味道。由此推知，siblings相当于brothers or sisters。
4. A 标题概括题。本文介绍了紫色食物具有抗衰老、降低患癌风险、降低胆固醇、降低患高血压的风险等功效，鼓励人们为了健康多吃紫色食物。

【分析】
本题是一篇围绕健康饮食展开的英语阅读理解题，包含细节理解、词义猜测、主旨大意三类题型。解题时需先通读全文把握核心内容，再针对各题目定位原文对应段落：第1题定位第一段找吃多彩食物的原因；第2题定位第三段分析紫色食物受欢迎的原因，排除非原因选项；第3题结合第四段上下文猜测词义；第4题总结全文核心选标题。
【解析】
1. 细节理解题：根据第一段“eating all kinds of colourful foods providing vitamins and minerals that can't be replaced with supplements to keep your body healthy”可知，多彩食物能为人体提供所需的维生素和矿物质，对应选项C。
2. 细节理解题：第三段提到紫色食物受欢迎的原因包括人们关注健康、深色食物营养更丰富、研究发现常吃紫色食物的人更健康；“可获取更多紫色食物”是结果而非原因，对应选项B。
3. 词义猜测题：第四段将紫色甘薯与橙色甘薯对比，指出二者味道相似，“siblings”在此处意为同类，引申为“兄弟姐妹”的含义，对应选项A。
4. 主旨大意题：全文围绕紫色食物的健康益处展开，鼓励人们为健康多吃紫色食物，对应选项A。
【答案】
1.C 2.B 3.A 4.A
【知识点】
英语阅读理解、细节理解、主旨大意
【点评】
本题主题贴近生活（身心健康），考查学生的阅读理解核心能力，涵盖常见题型，难度适中，需学生精准定位原文信息。
【难度系数】
0.5