dieting your way to health

问下这道英语阅读理解题
Dieting to lose weight has become very popular in recent years.People have become more health conscious and try to take better care of their bodies by eating more nutritiously (有营养地) and exercising more regularly to lose any unnecessary fat that they may have.
Not only are people being more careful about what they eat,they are also concerned with how they eat and how their meals are prepared.People are taking more time for each meal.Many avoid the so called " plastic " fast-food hamburgers and choose to eat a salad or a sandwich of more healthful ingredients（成分) in a quiet restaurant with a more leisurely atmosphere.At home,they also try to take enough time to eat a relaxed dinner without phone or TV interruptions.
While dieting may be viewed as beneficial,it has also become a serious problem for Americans,particularly for young women.Dieting for them has actually become a psychological addiction（依赖）They eat so little that they can lose as much as fifty percent of their total body weight,and although they look like skeletons,they still insist that they are fat.
The current waves of exercising,dieting and the problems produced have caused many organizations to begin educating the public.Many schools,hospitals,health organizations,newspapers and magazines,for example,are offering classes,
printing booklet articles,etc.to inform the public of the way to exercise and diet,
of the dangers of dieting too rapidly,and of the places people can go for medical help if they find themselves on the road to "diet addiction".
问：According to this passage,we can infer that the atmosphere of eating has something to do with
A.dieting
B.manners
C.health
D.exercising

句子改错~
some dieters find that after their dieting is over,they eat twice more than they did before their diet.
我想请教下,在这里为什么after和over可以在一起使用?而did为什么是错的.

英语翻译
198.The fact that misguided forms of dieting _________ so many problems does not mean that no dieting is safe.A.result into B.result in C.result from D.result to

关于keep dieting写一篇英语短文
100个字左右.

Johnson hasn’t felt any effect the new dieting recipe has him since he tried to lose weight three months ago. A．for B．to C．on D．with

关于The Benefits and Dangers of Dieting 的英语作文
The Benefits and Dangers of Dieting
1.现在有很多人为“爱美”而节食； 2.节食给健康带来的好处； 3.这种节食可能带来的问题.
包括这三点 写120个词的英语作文 大学水平 要求必须是自己写的 不能抄袭

Dieting to lose weight has become very popular in recent years.People have become more health conscious and try to take better care of their bodies by eating more nutritiously (有营养) and exercising more regularly to lose any unnecessary fat that they may have.
Not only are people being more careful about what they eat,they are also concerned with how they eat and how their meals are prepared.People are taking more time for each meal.Many avoid the so-called " plastic " fast-food hamburgers and choose to eat a salad or a sandwich of more healthful ingredients （成分） in a quiet restaurant with a more leisurely atmosphere.At home,they also try to take enough time to eat a relaxed dinner without phone or TV interruptions.
While dieting may be viewed as beneficial,it has also become a serious problem for Americans,particularly for young women.Dieting for them has actually become a psychological addiction （依赖）They eat so little that they can lose as much as fifty percent of their total body weight,and although they look like skeletons,they still insist that they are fat.
The current wave of exercising,dieting and the problems produced have caused many organizations to begin educating the public.Many schools,hospitals,health organizations,newspapers and magazines,for example,are offering classes,printing booklet articles,etc.to inform the public of the way to exercise and diet,of the dangers of dieting too rapidly,and of the places people can go for medical help if they find themselves on the road to "diet addiction".

Some dieters find that after their dieting is over, they eat twice___they did before their diet.
A.more than B.as many as C.much than D.as much as
老师,您好,想问一下为何不能选A,是应该说more than twice?还是本身结构无误只是不符合常理呢?谢谢您!另外,句中的did是不是应该改为do呢?
个人认为,A选项本身除了不符合常理外,也不符合语法规则.应该是more than twice they did,如more than four times the length of .选项中为twice more than,所以A不对～
根据语感,可以选择答案D,根据常理可知A不可选,但是还是希望大侠能够对于A的正确使用方法做出举例说明,不甚感谢!
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谢谢各位的帮助,说得很详细!还想问一下,我们有A is twice the size of B. 由此,应该可以说A is more than twice the size of B,这里more than 修饰twice,那么如果一定要对A选项作出修改,只从语法的角度出发,是否可以改为 they eat ______more than ____twice they did before their diet呢?