Question

【題目】 Keeping a busy social life among lots of friends may keep people thinner than spending hours doing some exercises, according to scientists. They say that socializing and meeting with friends help increase levels of brown fat in the body which burns calories to produce heat.

Living in an exciting social environment was found to reduce fat in mice's belly by half over four weeks, even if they ate more. US researchers say that social excitement aids weight loss by turning white fat into brown. White fat stores calories and makes us fatter, while brown burns energy to produce heat. Turning white fat into brown is extremely difficult, normally requiring long- term stay in cold conditions or exciting part of the body's nervous system.

However, scientists from Ohio State University now think that having a busy social life is an even more effective way of changing white fat into brown. The team came up with their theory by studying the effects of various living environments on mice. Those, who lived alongside a greater number of mice, had more space and toys to excite themselves and then lost far more weight over the course of the study than their “couch potato" fellows.

Study author, Dr Matthew During, whose team's findings appear in the journal Cell Metabolism, said, "I'm still amazed at the degree of fat loss that occurs." Explaining how new technology had threatened face-to-face socializing, he added, "It's not just a sedentary (久坐的) lifestyle and high calorie foods, but an increasing lack of social activities." Co-author Dr Lei Cao said，"Loneliness is a potential factor for cancer and death; it's equal to cigarette smoking to a certain extent. Social activities are very vital.

【1】What information can we get from the first two paragraphs?

A.Brown fat stores calories and makes us fatter

B.It doesn't take long to turn white fat into brown.

C.Social excitement helps gain more weight

D.Brown fat can burn energy to produce heat.

【2】Which of the following statement does the text support?

A.Levels of brown fat can be increased by socializing.

B.The mice lacking social life lose more weight.

C.The research findings haven't been published so far.

D.Dr Matthew During wasn't convinced of the result.

【3】We can conclude from the text that _______.

A.the fat in mice's belly was reduced because of the relaxing environment

B.a sedentary lifestyle and high calories foods influence people's social life

C.surfing the Internet may influence people's face-to-face communication

D.cancer and death are mainly caused for lack of social life

Answer 1

【答案】

【1】D

【2】A

【3】C

【解析】

這是一篇說明文。本文講述了一項關(guān)于減肥的研究。科學家稱社交和與朋友聚會有助于增加體內(nèi)褐色脂肪的水平，這種脂肪通過燃燒卡路里產(chǎn)生熱量。并且以小老鼠的例子告訴人們應(yīng)該積極參加社交活動多鍛煉，而不是總是呆著不動。

【1】細節(jié)理解題。根據(jù)第二段第二句話US researchers say that social excitement aids weight loss by turning white fat into brown. White fat stores calories and makes us fatter, while brown burns energy to produce heat.可知，美國研究人員稱，社交興奮感能將白色脂肪轉(zhuǎn)化成棕色，從而有助于減肥。白色脂肪儲存熱量，使我們更胖，而棕色脂肪燃燒能量產(chǎn)生熱量。由此可知，棕色脂肪能夠燃燒能量，產(chǎn)生熱量。故選D。

【2】推理判斷題。根據(jù)第三段第一句However, scientists from Ohio State University now think that having a busy social life is an even more effective way of changing white fat into brown.可知，然而，俄亥俄州立大學的科學家們現(xiàn)在認為，忙碌的社交生活是將白色脂肪轉(zhuǎn)化為棕色脂肪的更有效方法。由此推知，文章支持社交活動可以增加褐色脂肪的水平的說法。故選A。

【3】推理判斷題。根據(jù)最后一段中Explaining how new technology had threatened face-to-face socializing, he added, "It's not just a sedentary lifestyle and high calorie foods, but an increasing lack of social activities."可知，在解釋新技術(shù)如何威脅到面對面的社交活動時，他補充說，“這不僅僅是久坐不動的生活方式和高卡路里的食物，而是越來越缺乏社交活動�！庇纱送浦�，上網(wǎng)可能會影響人們面對面的交流。故選C。

隱含意義推理判斷題。這類題的題干中常含有：infer/suggest/imply/conclude/intend/purpose/be likely to等標志性詞語。解決這類問題時要理解文章潛在的含義和作者所給的提示。同時，要對文章的含義和作者的暗示作出合理的猜測和推斷。如第三小題，根據(jù)最后一段中Explaining how new technology had threatened face-to-face socializing, he added, "It's not just a sedentary lifestyle and high calorie foods, but an increasing lack of social activities."可知，在解釋新技術(shù)如何威脅到面對面的社交活動時，他補充說，“這不僅僅是久坐不動的生活方式和高卡路里的食物，而是越來越缺乏社交活動�！庇纱送浦�，上網(wǎng)可能會影響人們面對面的交流。故選C。