假设你是一名深圳的七年级学生李华，你的学校将举行环保周活动，请根据以下 要点提示，完成一篇保护树木的演讲稿，号召大家一起行动起来，保护树木。

树木对人类的重要性	1.树木能帮助清洁空气，是重要的环保卫士。 2.树木为人们提供水果、木材等，让人类生活更方便。
如何保护树木？	1.停止砍伐树木。 2.不使用一次性筷子、节约用纸等。 3 （自己补充至少一点）
号召大家保护树木	……

要求：
1.必须包含以上提示内容，可适当发挥；
2.条理清楚、行文连贯、标点正确、书面整洁；
3.不得出现真实姓名和校名；
4.80词左右。开头已给出，不计入总词数。参考词汇：throwaway chopsticks 一次性筷子
Dear students，
    I am Li Hua.It's my honor to speak here today.My topic is protecting trees，________.

【考点】演讲稿．

【答案】Dear students，
    I am Li Hua.It's my honor to speak here today.My topic is protecting trees，they are really important in our daily lives.They help us in many ways.Trees provide us with wood and fruit.Many of the things in our daily lives come from trees.For example，paper and pencils.A lot of furniture is made of wood as well．Trees also help fight against pollution.They take in harmful gases and produce oxygen.As a result，they keep the air cool and clean.
However，people cut down millions of trees every year.It is very important for us to protect the trees．First，we must stop cutting down too many trees.Second，we should plant more trees and take good care of them.Third，we don't use throwaway chopsticks ，and we should save paper and so on.Let's do our best to make our environment greener.