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，如环保、对健康有益等。

注意:1.词数：100左右

2.演讲稿开头和结尾已给出，但不计入总词数。

参考词汇：低碳生活：low-carbon life 节能：energy saving

Good morning, everyone,

I am Li Hua from Xingguang Middle School. I feel it an honor to communicate my idea to you. The topic of my speech is “Let’s Ride Bicycles”.

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【答案】Good morning, everyone!

I am Li Hua from Xingguang Middle School. I feel it an honor to communicate my idea to you. The topic of my speech is “Let’s Ride Bicycles”.

As is known to all, air pollution is getting more and more serious recently and as a result, many people are suffering from lung diseases. What’s more, the traffic condition is getting worse and worse day by day, on account of the popularity of cars. So, it is right time that we should lead a low-carbon life

We ought to ride bicycles, for not only can it save energy but also it reminds us to raise awareness of environmental protection.There is no denying that regular exercise and fresh air contribute to good health. Moreover, riding bicycles provides us with a perfect opportunity to strengthen our body and keep up high spirits

Every little step can make a difference to society. Let’s ride bicycles. I’m convinced that our world will become more beautiful.

【解析】

这是一篇提纲类写作。

第1步：根据提示可知，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，如环保、对健康有益等。

第2步：根据写作要求，确定关键词（组）：low-carbon life (低碳生活)；energy saving (节能)；as a result (结果)；on account of (由于)；strengthen(加强)等。

第3步：根据提示及关键词（组）进行遣词造句，注意主谓一致和时态问题。此处文章主要应用一般现在时。

第4步：连句成文，注意使用恰当的连词进行句子之间的衔接与过渡，书写一定要规范清晰，保持整洁美观的卷面是非常重要的。