世界卫生组织（World Health Organization）在首个关于全球青少年运动趋势的研究报告上称，全球大约有80%的青少年缺乏锻炼。专家认为，运动量不足将影响青少年未来的健康状况。为此，世卫组织将举办一次国际中学生交流活动。假如你叫李华，请你用英语写一篇发言稿在这次活动发言。内容包括：
1.缺乏运动的原因；
2.运动的好处；
3.给出合理的建议。
注意：
1.词数80左右；
2.以适当增加细节，以使行文连贯；
3.开头和结尾已为你写好，不计入总词数。
Dear fellow students，
    According to the World Health Organization（WHO），there are about 80% teenagers around the world lacking exercising.__________.
    That's all. Thank you for listening!

【考点】提纲作文；身心健康．

【答案】Dear fellow students，
According to the World Health Organization（WHO），there are about 80% teenagers around the world lacking exercising. And it will lead to our health problem.
In my opinion， the reason why most of us think exercising is a waste of time is that we are having much homework in high school. What's more， we prefer phones to sports. However， sports can strengthen our body and make us energetic， which is beneficial to our study. So， I call on  all of us to make a plan for daily exercise after hearing my speech. You can choose a sport you like and make a reasonable time for doing it. Make sure you can insist on your plan， otherwise you cannot gain any effect. Anyhow， I hope all of us can change our mind and spend some time exercising.
That's all. Thank you for listening!