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    There have always been a lot of commonly believed but false ideas about being fat and doing exercise.  While others hold that if they stop exercising, their muscles will turn into fat. Here are some more myths(缪见):

    I'll never lose weight—I come from a fat family

    Wrong! While we can't change the body type we are born with, we can't blame our genes for making us fat. There's plenty of evidence that fatness runs in families.

    Wrong! Fatness is not caused by a slow metabolism(新陈代谢). In fact, although fat people consume more energy than slim people, they also fail to realize how much they eat! Keeping a diary can help you work out your daily food intake more accurately.

    Exercise is boring

    Wrong! The key is to develop a balanced and varied program that's fun as well as progressive. If you enjoy a Sunday walk, take a different route. If you do yoga, try a tai chi class. If you like swimming, set yourself a distance or time challenge.

    No pain, no gain

    Wrong! Exercise is not meant to hurt. Indeed, pain is your body telling you something's wrong, and continuing to exercise could lead to serious injury. You may experience mild discomfort as you begin to exercise regularly, but this is your body adapting to the positive changes in your lifestyle and the aches should disappear relatively quickly.

A. And the main reason is that they share the same habits of eating too much and exercising too little.

B. I am fat because I burn calories slowly.

C. Anything will be interesting if you do the same kind of exercise.

D. If they don't, rest and seek medical advice.

E. And the main reason is that their parents are fat.

F. Anything will become boring if you do it repetitively.

G. Some people believe that they can't help putting on weight as they get older.

解：已知∠C+∠D=180°，根据，可得DF∥BC；又根据两直线平行，同位角相等，可得∠AED=∠B．

对此活动的认识（如对本人、学生及社会的益处等）

个人优势（如性格、独立生活能力、语言能力等）

你的计划（如怎样进行辅导等）

注意：1). 词数不少于100；

2). 可适当加入细节，以使内容充实、行文连贯

3). 信的开头和结尾已给出，不计入词数。

参考词汇：晨曦希望小学Chenxi Hope School

《水浒传》《朝花夕拾》《艾青诗选》《傅雷家书》《昆虫记》

以下是在实验室里制取气体时常用的部分仪器，请回答问题．