假設(shè)你是晨光中學(xué)的李津，將參加主題為"Let's Ride Bicycles"的英語演講比賽。請撰寫一份演講稿。主要內(nèi)容包括：
（1）目前汽車帶來的空氣污染和交通堵塞問題；
（2）騎自行車的益處，既能環(huán)保，有利健康等。
注意：1）詞數(shù)不少于100；
（2）可以適當(dāng)增加細(xì)節(jié)，以使行文連貫；
參考詞匯：低碳生活（low-carbon life）；節(jié)能（energy saving）
Hello，boys and girls，
_______________
Thanks for listening!

【考點(diǎn)】提綱作文；身心健康；演講稿．

【答案】Hello，boys and girls，
    I am Li Jin from Chenguang Middle School.The topic of my speech is "Let's Ride Bicycles".
    As is known to us all，there is an increasing number of cars on roads.We can now drive to work，to go shopping，to visit friends and even to travel across the country.Though they bring about great convenience，cars also go hand in hand with air pollution as well as traffic jams.
    How to solve these problems is a great challenge to everyone.My suggestion is that we should ride bicycles.There is no doubt that riding bicycles can surely do us good.Firstly，riding bicycles means using cars less，which is a good way to decrease traffic jams.Secondly，riding bikes is environmentally friendly，that is，it doesn't cause air pollution and is beneficial to our health.What's more，bicycles are so handy and convenient that you can go wherever you like and do not need to look for a large parking lot.
    Since there are so many advantages，why not join us and ride bicycles？
    Thanks for listening!