A
KEY→P13
范畴:人与社会 主题:科学实验 体裁:应用文 难度:★★★ 建议用时:5分钟 评价: /3
新模态 操作指南
Sounds in water
You may feel silly holding a bag of water to your ear, but it can teach you something about how sound travels.
You'll need
• A plastic bag with zips closed
• A watch with hands, not digital
• An alarm clock, not digital
• Water

What happens?
You can hear the watch more clearly through the bag because water carries sound vibrations better than air.
1 Fill the plastic bag with water and zip it up.
2 Hold the bag against your ear, and then hold the watch against the bag. Can you hear it ticking?
Then hold the watch near the other ear, about the same distance away as it was with the bag of water. Compare the sounds with and without the bag.
3 Repeat Step 2 with the alarm clock.
This is why whales can communicate with each other over long distances by making clicking and singing sounds.
You can hear all sorts of sounds clearly underwater in a swimming pool.
()1. 新考法·图片理解 Which of the following is the main meaning of Step 2?

()2. What is the result of the experiment?
A. Water carries sound vibrations as well as air.
B. Water carries sound vibrations better than air.
C. Air carries sound vibrations better than water.
D. We cannot hear sounds clearly underwater.
()3. Which section of a magazine is this article most likely taken from?
A. Health. B. Sports. C. Science. D. Travel.

本文通过一个实验告诉我们,声音通过水传播比通过空气传播听起来更清晰。
1. A 图片理解题。由实验步骤2可知,先将水袋放在耳朵旁,再把手表放在水袋上听其滴答声,接着将手表放在另外一只耳朵旁,距离与刚才隔着水袋的距离一样,再听声音并比较两种方式所听到的声音。
2. B 细节理解题。由“What happens?”部分的 water carries sound vibrations better than air 可知答案。
3. C 文章出处题。本文介绍了一个关于声音在水和空气中传播的科学实验,涉及声音振动、介质传播等科学知识,因此最可能出自杂志的科学(Science)版块。

B
KEY→P13
范畴:人与自我 主题:健康生活 体裁:说明文 难度:★★★★ 建议用时:7分钟 评价:/4
Dietitians often tell people to "eat the rainbow"—eating all kinds of colorful foods provides
英语嗨吧
中国经典名著英文译名
《史记》Records of the Grand Historian 《阿Q正传》The True Story of Ah Q
67
vitamins and minerals that can't be replaced with supplements to keep your body healthy.
A food company examined buyers' behavior globally across hundreds of stores. According to experts from the company, our plates look very colorful, 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, 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 color of the food is, the more antioxidants(抗氧化物) 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 color 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-colored sweet potatoes share the same taste as their orange siblings, but 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 colorful foods often .
A. because richly-colored 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 color 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. 新考法·组合选择 The benefits of eating purple fruits and vegetables include .
① treating cancers
② improving memory
③ helping people look young
④ aiding digestion
⑤ reducing the risk of getting high blood pressure
A. ①②③④
B. ①②④⑤
C. ①③④⑤
D. ②③④⑤
()4. What's the best title for the passage?
A. Eat purple foods for your health
B. Get the anthocyanin from purple foods
C. Purple foods, a new kind of product
D. Nutrients, something our body needs

人们应该多吃紫色食物,它们有利于降低胆固醇、降低患高血压风险并有帮助消化等功效。
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。而时下有越来越多的紫色食物可获得并不是紫色食物受欢迎的原因。
3. D 组合选择题。由第三段中 a reduced risk of getting high blood pressure 可知,紫色食物能降低患高血压的风险;由第四段中 lower the risk of some cancers and improve memory 可知,紫色食物能降低患癌症风险并能提高记忆力,但没说能治疗癌症;由第四段中 help with digestion 可知,紫色食物能帮助消化;由最后一段中 keep you looking younger 可知,紫色食物中的抗氧化物质能让人看上去更年轻。
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。