3. 从文中找出三种保护环境的具体做法：
(1)
(2)
(3)

示例：
(1) Take public transportation like the bus or subway instead of driving private cars to reduce air pollution.
(2) Sort rubbish and recycle reusable materials such as waste paper and plastic bottles.
(3) Use reusable cloth bags instead of disposable plastic bags when you go shopping.

本题为信息提取类题目，结合人教版九年级英语全一册环保主题单元的核心内容，写出三种符合实际的保护环境的具体做法即可，答案不唯一，表述合理、语法正确即可得分。

4. 请用“not only… but also”句型仿写句子。

示例：
1. Not only my parents but also I am interested in traditional Chinese culture.
2. She not only finished her homework carefully but also helped her deskmate with his study.

"not only...but also..." 是常用并列连词短语，意为“不仅……而且……”，可以用来连接句中两个并列的成分，比如并列主语、并列谓语、并列宾语等，使用该句型时需要遵循就近原则，即谓语动词的单复数形式要和离它更近的、"but also"之后的名词/代词保持一致，仿写时保证语义通顺、结构符合该句型的规则即可。

B. 问题解决——校园环保问题调研。完成校园中常见的环保问题及解决方案对照表。

C. 创作班级环保公约图表。
请你以班级环保公约为主题，创作一张清晰美观的图表，具体要求如下：
1. 核心内容：需包含醒目的标题、3～4条本班环保问题、对应可执行的环保方法，以及至少一个环保主题简笔画，如：绿植、回收箱、节能灯泡。
2. 制作规范：可用彩色笔涂色，确保布局清晰、色彩协调。
3. 个人承诺：在公约底部写下一条个人环保承诺。
例如：“我承诺：每天离开教室前检查并关闭电源”；“我承诺：自带水杯，不购买瓶装水”。

B部分 填写参考：
1. I will bring my own reusable lunch box and water cup to school every day, and call on my classmates to refuse disposable plastic tableware together.
2. I will sort waste paper and put it into the recycling bin instead of throwing it randomly, and keep the good habit of using paper on both sides.
3. I will help stick the reminder stickers on the classroom wall, and check and turn off all the lights and computers before leaving the classroom every day.
C部分 填写参考：
1. electricity, and turn off all the lights and computers in time when no one stays in the classroom
2. classified recycling bins in the classroom, to sort all kinds of waste correctly
3. unnecessary paper waste, and make full use of both sides of each piece of paper
4. to bring my own reusable water cup to school, and never buy bottled drinks to reduce plastic waste

本题是贴合校园生活的环保主题英语实践题，结合九年级所学的日常场景词汇与常用表达，要求根据给出的对应解决方案填写个人可落地执行的行动，再完成班级节能低碳行动公约的内容填写，所有内容符合初中英语的表达难度，贴合真实校园场景。