假设你是星光中学的张红，将参加主题为“Let’s Ride Bicycles”的英语演讲比赛。请撰写一份演讲稿，主要内容包括：
1. 目前汽车带来的空气污染和交通堵塞等问题。
2. 骑自行车的益处，如能环保有利健康等。
参考词汇：低碳生活(low-carbon life)
注意：1. 词数：120 词左右；
3. 演讲稿开头和结尾已给出，请将其抄写在答题卡上且该部分不计入总词数。
Good morning, everyone,
I am Zhang Hong from Xingguang Middle School. The topic of my speech is “Let’s Ride Bicycles_____________________________________________________________
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Thank you for listening!