话题如下：
Nowadays, more and more children are becoming obese. Give possible reasons and suggestions.
现在越来越多的孩子发胖，试给出可能的原因并且提出建议。
范文如下：
As some children in poor countries are vastly underweight as a result of poverty, others elsewhere in the world are suffering from another problem-obesity, as a consequence of improved living conditions. A recent study has shown the latter problem is becoming an epidemic, as the number of obese children in the developed world keeps rising alarmingly. I believe there are several factors responsible for this increase.
In some cases, there is a genetic link to obesity. It has been found that the children' s weight is related to that of their parents. A child of obese parents is more likely to become overweight, as he may inherit some of genes that control body weight from his mother or father.
Are genetic reasons the only explanation? Other factors must also be at work and among them is a poor diet. Being afraid that their children may not get enough to eat and even suffer from poor health, some parents are too permissive, allowing them to eat too much, with as many as five or six meals a day. The increasing popularity of fast-food and sweets make matters even worse.
It is not just of a question of what young people eat, but also a matter of lifestyles. TV and the Internet have produced sedentary lifestyle. Children who watch TV passively or who use computers for hours every day simply do not get enough physical exercises. Besides, a growing number of preteenagers have come to rely on public transport or lifts from their parents, rather than walking or using bicycles. Lack of activity gradually contributes to overweight.
Obesity may have knock-on effects, especially in the form of such diseases as diabetes and heart problems in children' s later lives. Solutions to the problem may vary according to root causes. Those whose obesity is generelated should consult doctors. For others, a better lifestyle, more exercise and a proper diet consisting of more vegetables and fruit and fewer fatty foods may assist.
重难点词汇学习：
consequence
释义
n.结果; 后果; 重要性;
It was an inevitable consequence of the decision.
那是这个决定的必然后果。
I regret to inform you he died as a consequence of his injuries.
我很遗憾地通知你，他因伤势太重不治身亡。
What he liked to do was to take an idea and wrestle it by finding every possible consequence.
他喜欢做的事情就是先提出一个想法，然后冥思苦想，找出可能产生的各种后果。
responsible
释义
adj.尽责的; 承担责任; 负有责任的; 懂道理的;
Those responsible for this crime will be severely punished.
犯下这宗罪行的人将受到严厉惩罚。
We would have thought he would have a more responsible attitude.
我们本以为他会采取更负责的态度。
He is too impulsive to be a responsible prime minister.
他容易冲动，很难成为值得依赖的首相。
preteenagers
翻译：青春期前
contributes
释义
v.捐献( contribute的第三人称单数 ); 捐助; 撰稿; 投稿;
Built-up static contributes to sick building syndrome.
高楼林立中的静电干扰是引发大楼病综合征的原因之一。
She has many humanitarian interests and contributes a lot to them.
她拥有很多慈善事业,并作了很大的贡献.
She regularly contributes to the college magazine.
她定期给校刊投稿.
vegetables
释义
n.蔬菜( vegetable的名词复数 ); 生活单调的人，植物人; 菜蔬;
Fresh fruits and vegetables are important and so is bran.
新鲜的水果和蔬菜很重要，麦麸也是。
He decided on roast chicken and vegetables, with apple pie to follow.
他决定点烤鸡配蔬菜，然后再要一份苹果派。
Remove the vegetables from the steamer when they are three-quarters cooked.
将蔬菜蒸至大半熟后从蒸锅里捞出。
assist
释义
n.帮助; 援助; 机器助手; 辅助装置;
vt.帮助; 援助; 帮助某人做某事; 搀扶（某人）上下车;
vi.援助; 出席; 参加;
We'll do all we can to assist you.
我们会尽全力帮助你。
Here are some good sources of information to assist you in making the best selection.
这里是一些有价值的信息来源，可以帮助你作出选择。
I have taken this course solely to assist the realisation of my assets for the benefit of all my creditors.
我采取这种行动只是为了变现我的资产以偿清欠款。
