假设你是星光中学的李华，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，如节能环保、有利健康等。
参考词汇：低碳生活（low-carbon life）；节能（energy saving）
注意：
1．词数：120词左右；
2．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 Li Hua from Xingguang Middle School．The topic of my speech is "Let's Ride Bicycles"．
As is known to all, with the improvement of people’s living standards, cars have become a popular means of transport, bringing great convenience to our life. However, they have also caused some problems such as air pollution and traffic jams.
How can we solve the problems then? As far as I’m convened, riding bicycles is a good solution. For one thing, bicycles don’t need any petrol and they are energy-saving. For another, bicycles are environmentally friendly because they won’t give off waste gas. What’s more, riding bicycles is a good way for us to exercise and it is beneficial to our health.
Therefore, let’s take the responsibility to build up a low carbon city by riding bicycles. Come on and join us!
Thank you!
题目分析：这是一篇演讲稿类作文。假设你是星光中学的李华，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，如节能环保、有利健康等。需要写的内容已经粗略给出，需要我们翻译成完整通顺的句子，适当添加些内容，使文章更充实。写作时注意准确运用时态，上下文意思连贯，符合逻辑关系，不能出现文章脱节问题。一定要给出自己的看法。尽量使用自己熟悉的单词句式，同时也要注意使用高级词汇和高级句型为文章润色。注意要求的词数120词左右，不要太多也不要太少。
【亮点说明】这篇短文使用了一些固定句式和短语，为文章增色不少.如: As is known to all；As far as I’m convened；What’s more，学习中注意总结,牢记一些固定句式及短语,写作时就可以适当引用,使文章的表达更有逻辑性，更富有条理。
