摘要：本文为大家详细分析一篇经济学人杂志的文章，不仅有中文翻译，还总结了大量适用于雅思写作的万用经典句式和高分词汇，对于正在备考雅思写作的同学们来说是绝佳的复习资料。本文主要分析了为什么说越饿越胖，详情见文章。
TOPIC：健康;肥胖;食谱;
场景：
健康：肥胖;糖尿病;减肥;节食;
生活方式 & 食物：垃圾食品;含糖饮料;
现象&本质：治标&治本
【口语 + 写作】
【阅读健康/自然科学】
David Ludwig often uses an analogy when he talks about weight loss: Human beings are not toaster ovens. If we were, then the types of calories we consumed would not matter,and calorie counting would be the most effective way to lose weight.
谈到减肥，戴维·路德维希(David Ludwig)经常会打这么一个比方：人体可不是个烤箱哟。如果是烤箱的话，那我们不管吃何种食物都无关紧要，而且计算热量卡路里数会是最有效的减肥方法。
【经典句式】
analogy类比
weight loss减肥
calorie卡路里
consume消耗;消费
lose weight减肥
Dr. Ludwig, an obesity expert and professor of nutrition at the Harvard T.H. Chan School of Public Health, argues that weight gain begins when people eat the wrong types of food, which throws their hormones out of whack and sets off a cycle of cravings, hunger and bingeing. In his new book,“Always Hungry?” he argues that the primary driver of obesity today is not an excess of calories per se, but an excess of high glycemic foods like sugar, refined grains and other processed carbohydrates.
路德维希博士是哈佛大学公共卫生学院(Harvard T.H. Chan School of Public Health)的肥胖症专家和营养学教授，他认为，人要是吃错了东西，就会引发激素紊乱，陷入“想吃—饥饿—暴饮暴食”的恶性循环，结果就是体重开始增加。在其新书《总觉得饿吗?》(Always Hungry?)中，他提出，如今，肥胖症的主要原因并非是摄入了过多的热量本身，而是食用了过量的高升糖指数食物，如糖、精制谷物和其他经加工的碳水化合物等。
【经典句式】
obesity肥胖症
nutrition营养
argue认为
weight gain 增重
hormone激素;荷尔蒙
throw… out of whack使…不正常
setoff开始
cycle循环;周期
craving渴望
binge狂欢;暴饮暴食
an excess of过多
…per se ……本身
refined grain精制谷物
process处理
carbohydrate碳水化合物
【大作文万用句式】
The primary driver of …is not …, but …的主要原因并非…，而是…
【犀利观点】肥胖者&饮食习惯;健康：
The primary driver of obesity today is not an excess of calories per se, but an excess of high glycemic foods like sugar, refined grains and other processed carbohydrates.
The basic premise is that overeating doesn’t make you fat. The process of getting fat makes you overeat. It maysound radical, butthere’s literally a century of science to support this point. Simply cutting back on calories as we’ve been toldactually makes the situation worse. When we cut back on calories, our body responds by increasing hunger and slowing metabolism.It responds in an effort to save calories. And that makes weight loss progressively more and more difficult on a standard low calorie diet.It creates a battle between mind and metabolism that we’redoomed to lose.
基本前提是，并非是暴饮暴食让你发胖，而是发胖的过程会令你过量进食。这听起来可能有些过激，但我们可以毫不夸张地说，最近一个世纪以来的科学足以支持这一观点。那些要我们减少热量摄入的告诫其实起了反作用。一旦热量摄入减少，我们的身体就会做出反应，一方面增加饥饿感，另一方面则减缓新陈代谢的速度。也就是说，它在尽可能地节约热量。正因为此，人们往往会发现在坚持标准的低热量饮食时，减肥变得越来越困难了。在这场意志与新陈代谢之间的斗争中，我们注定会是失败者。
【经典句式】
premise前提
overeat暴饮暴食
process过程
radical过激的
cut back on … 减少……
respond by … 做出……的反应
metabolism新陈代谢
in an effort to do sth 为了……
progressively渐进地;越来越
standard标准的
a battle between … and … …和…的斗争
be doomed to do sth 注定要……(负面)
【大作文万用句式】
The basic premise is that …基本前提是，……
Simply … as we’ve been told actually makes the situation worse. 那些要我们……的告诫其实起了反作用。
