F Look, read and write
1
—W you do a project f Earth Day?
—Yes. I'll make a video about g green.
2
—H will you save electricity?
—I'll turn o the l when I leave a room.
3
—Why do you draw on both sides of the p?
—Because I want to save paper. It's a good way to take care of the E.
4
—Do you need a plastic bag?
—No, I don't. I'll u my cloth bag.
—Do you always take it with you when you do the shopping?
—Yes, I do. I want to try my b to live a green life.

1. Will; for; going
2. How; off; lights
3. paper; Earth
4. use; best

本题结合图片提示和首字母补全对话，考察本单元与绿色环保主题相关的词汇、一般将来时用法和固定搭配：
1. 根据答句的"I'll"可知问句是询问对方是否将要做项目，第一空填Will；第二空表达“为地球日”，填介词for；第三空是固定表达go green（践行环保），介词about后接动名词形式going。
2. 答句回答的是节约用电的具体方式，第一空填疑问词How；离开房间要关灯，固定短语turn off表示“关闭”，第二空填off；第三空填lights（灯，复数表泛指）。
3. 第一空表达“纸的两面”，填paper；节约用纸是保护地球，第二空填Earth。
4. 第一空表达“使用我的布袋子”，填use；固定搭配try one's best表示“尽某人最大努力”，第二空填best。