【每日訓(xùn)練】英語四級六級閱讀(17)
小編寄語：英語四級六級考試，閱讀是不可或缺的一大部分，生詞多，理解難，時間少，是不少考生抱怨的問題。要想在考場上做好閱讀理解，必須在平常多閱讀，掌握新詞匯，提高閱讀速度。而滬江小編就為大家準備了閱讀材料系列，供大家練習(xí)。
我們的這個閱讀系列旨在為大家提供一些閱讀材料，不一定跟四六級考試的難度、篇幅、內(nèi)容完全一樣。對于很多童鞋糾結(jié)這是四級還是六級范圍的閱讀，其實沒有必要。如果大家覺得比較簡單，就當(dāng)作泛讀材料了解了解，認識幾個新單詞或新表達方式也不錯。如果大家覺得這些材料理解上有難度，不妨當(dāng)做挑戰(zhàn)自己的拔高訓(xùn)練，希望大家都有進步^^
【今日推薦閱讀】
Losing weight is not only good for the waistline, it is good for the brain.
Scientists say substantial weight loss improves cognitive functions like memory and concentration.
Researchers carried out tests on 150 volunteers, all weighing over 21 stone, and compared them with results from healthy people.
In some tests, including memory exams, almost a quarter of the overweight participants scored low enough to be considered learning disabled.
Many of them had additional health problems, such as high blood pressure, type two diabetes and sleep apnea.
After the initial round of testing, two-thirds of the volunteers had gastric bypass surgery to reduce the size of the stomach and lost an average of about 3st 8lbs.
After 12 weeks, they all took the tests again and the group that lost weight boosted their scores, particularly those involving memory, significantly. They also showed great improvement in organisational skills.
The 41 obese volunteers who declined the surgery ended up with even worse results.
Professor John Gunstad, of Kent State University, Ohio, said the research showed obesity can damage the brain, ‘especially the parts most important for paying attention and learning new things’.
In the study the researchers also used magnetic resonance imaging to see inside their subjects’ brains.
The obese subjects tended to have damage to a particular substance that surrounds and insulates nerve fibres in the brain, suggesting that substance is needed for optimal cognitive function.
【內(nèi)容簡介】
本文開篇就介紹了一項新研究結(jié)果：保持健康的體重即可使腰部曲線更苗條，還有益于大腦認知。
接著文章介紹了這項科學(xué)實驗的具體過程及相關(guān)結(jié)果。
最后文章分析了造成這一結(jié)果的原因，使得研究結(jié)論更有說服力。
【詞匯短語講解】
①magnetic resonance ? 磁共振
②have damage to sth.? 對……有損害
③nerve fibre? 神經(jīng)纖維
④sleep apnea? 睡眠呼吸中止癥
【快速閱讀支招】
一般情況下，四級六級的閱讀理解是按照順序來出題的，當(dāng)然這也不是絕對的，還要根據(jù)快速瀏覽文章內(nèi)容來進行問題的定位。對于概括文章中心思想和判斷作者態(tài)度的題目要從全局上把握。
