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中称，全球大约有80%的青少年缺乏锻炼。假若你是李华，请根据以下要点准备一篇英语发言稿，在你校的升旗礼上发言，内容包括：
1.中学生缺乏运动的原因；
2.给你校同学推荐一项运动，并说明理由。
注意：
1.词数80左右；
2.可以适当增加细节，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，
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【考点】提纲作文．

【答案】Dear fellow students，
In its first research report on global youth sports trends，the World Health Organization said that about 80% of teenagers around the world lack exercise，which will absolutely cause severe health problems.Therefore，we should attach great importance to it and have enough exercise.
One reason for the case is that many of us teenagers hold an opinion that exercising will cost us much time for we have much homework.Another reason is that nowadays，something such as a smartphone seems to be more appealing to us than exercise.
However，exercising enough is of great importance to our health.Considering our limited time，I recommend jogging to you，because jogging doesn't need any equipment and you can go jogging whenever and wherever.Of course，make sure you can insist，or you cannot gain the effect.Anyhow，I hope you can change your mind and act now.
That's all.Thank you for listening !