Unit6 Section Ⅲ Developing ideas & Presenting ideas-【优化探究】2023-2024学年新教材高中英语必修第二册同步导学案配套PPT课件（外研版）

Section Ⅲ　Developing ideas & Presenting ideas 返回导航 下页 上页 外研英语 必修第二册 必备知识 自主学习 关键能力 合作探究 课堂检测 素养达标 课时作业 巩固提升 单元写作 能力提升 返回导航 下页 上页 外研英语 必修第二册 Part 1　课文预读 [原文呈现] What's really green? Most of us are aware that① we must take care of② the environment, and the majority③ of us take steps to④ save energy and reduce waste and pollution. But recently, some “green truths” have been shown to be only half true, or even completely false⑤. Here are some common ones. Which are really green? 返回导航 下页 上页 外研英语 必修第二册 Paper shopping bags are better than plastic ones. Plastic bags cause litter⑥ and are a danger to⑦ wild animals，which mistake them for⑧ food. It takes hundreds of years for plastic to break down⑨， but much less time for paper. Because of⑩ this, people think paper bags are the better environmental choice. it takes/took some time for sb./sth. to do sth.＝sb./sth. takes/took some time to do sth.做某事花费某人/某物一些时间。 返回导航 下页 上页 外研英语 必修第二册 However, making a paper bag uses four times as much energy as making a plastic bag and up to⑪ three times the amount⑫ of water. The process⑬ also produces more greenhouse gases. 动名词短语making a paper bag作主语，谓语动词用单数形式。 four times as much energy as...是倍数的一种表示法，其结构为：倍数＋as much＋不可数名词＋as＋其他。 返回导航 下页 上页 外研英语 必修第二册 In fact, both kinds of bags are bad for⑭ the environment.So, take a reusable bag with⑮ you when you go shopping⑯. 返回导航 下页 上页 外研英语 必修第二册 When you turn off⑰ a device⑱， it stops using power. When we turn off a device, such as television, it goes into stand­by⑲ mode⑳ .Devices in this mode still use power, and older devices in stand­by mode can use even more. This happens because electricity㉑ continues to leak㉒ from the device， even when it is turned “off”．To make sure your appliance㉓ is in fact off， remove㉔ the plug㉕ from its power supply. 返回导航 下页 上页 外研英语 必修第二册 because electricity continues...是because引导的原因状语从句。 不定式短语to make sure...在句中作目的状语。 返回导航 下页 上页 外研英语 必修第二册 Eating local food is good for the environment. It seems like㉖ commo