尊敬的老师，亲爱的同学们：
大家好！今天我站在这里，想要和大家分享一个非常重要的主题——保护我们的环境。我们生活的地球是一个美丽的地方，但是近年来，由于人类的活动，我们的环境受到了很大的破坏。
首先，让我们来看一下环境问题的严重性。空气污染、水污染和垃圾污染已经严重影响了我们的生活质量和健康。许多城市因为工业排放和汽车尾气而导致空气质量下降，人们不得不戴口罩出行。此外，河流和海洋也因为工厂废水和塑料垃圾的排放而变得肮脏不堪。
那么，我们应该如何保护我们的环境呢？我认为，我们可以从以下几个方面入手：
第一，减少使用一次性塑料制品。塑料袋、塑料吸管等一次性用品不仅难以降解，还对环境造成了极大的负担。我们可以使用可重复使用的购物袋和不锈钢吸管来代替这些一次性用品。
第二，节约用水和用电。我们在日常生活中应该养成良好的习惯，比如随手关灯、关闭水龙头等，这样可以有效减少资源的浪费。
第三，积极参与环保活动。我们可以加入学校的环保社团，或者参与社区的清洁活动，为保护环境贡献自己的力量。
最后，我想说的是，保护环境不是一个人的事情，而是每个人的责任。只要我们每个人都尽自己的一份力，我们的地球一定会变得更加美好。
谢谢大家！
Translation:
Good morning, dear teachers and classmates!
Today, I would like to talk about an important topic with you all - protecting our environment. Our Earth is a beautiful place, but in recent years, due to human activities, our environment has been severely damaged.
First, let's look at the seriousness of environmental problems. Air pollution, water pollution, and garbage pollution have seriously affected our quality of life and health. Many cities suffer from declining air quality due to industrial emissions and car exhausts, forcing people to wear masks when they go out. Moreover, rivers and oceans have become dirty due to factory wastewater and plastic waste discharge.
So, how should we protect our environment? I believe we can start from the following aspects:
First, reduce the use of disposable plastic products. Plastic bags, plastic straws, and other single-use items are not only difficult to degrade but also impose a great burden on the environment. We can replace these disposable items with reusable shopping bags and stainless steel straws.
Second, save water and electricity. In our daily lives, we should develop good habits, such as turning off lights and faucets, which can effectively reduce resource waste.
Third, actively participate in environmental protection activities. We can join the school's environmental protection club or participate in community cleaning activities to contribute our efforts to protect the environment.
Finally, I want to say that protecting the environment is not just one person's responsibility, but everyone's duty. As long as each of us does our part, our earth will definitely become more beautiful.
Thank you!
