假設(shè)你是西安一中的李華，將參加主題為"Let's Ride Bicycles"的英語演講比賽。請(qǐng)撰寫一份演講稿，主要內(nèi)容包括：

目前汽車帶來的空氣污染和交通堵塞等問題；

騎自行車的益處，如節(jié)能環(huán)保、有利健康等。

參考詞匯：低碳生活（low-carbon life）；節(jié)能（energy-saving）

注意： 1.詞數(shù)：120詞左右；

演講稿開頭和結(jié)尾已給出，且該部分不計(jì)入總詞數(shù)。

Good morning, everyone!

I am Li Hua , from Zhengzhou No.1 Middle School. The topic of my speech is "Let's Ride Bicycles".

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B

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