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 am concerned, 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 excise 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：题目要求写一篇以“Let's Ride Bicycles”为主题的演讲稿。演讲稿主要分两部分：叙述空气污染等问题；骑自行车的好处。作文必须包含所有要点，必须用上参考词汇。用第一人称进行写作，注意拼写和标点要规范，卷面整洁；多使用高级词汇和语法知识。

【亮点说明】范文使用As is known to all, However, also, As far as I am concerned, For one thing, For another, What’s more, Therefore等来衔接前后句和上下文，使作文显得语意连贯、行文流畅；

范文使用了一些较为重要的语法知识：with复合结构with the improvement of people’s living standards；非谓语动词bringing great convenience to our life；动名词作主语riding bicycles is a good solution；原因状语从句because they won’t give off waste gas等，语法知识运用得当，语法功底扎实；

范文还使用了一些短语和固定搭配：such as，give off，build up，a good way for us to excise，it is beneficial to our health，take the responsibility to build up a low-carbon city等，使文章内容显得充实。