Unit 6 第二篇课文挖空学案-2023届高考英语一轮复习外研版（2019）必修第二册

高三一轮复习之课文挖空学案 What’s Really Green? (P68-69) 编号：4 编制：高三三部 日期：2022/10/5 Most of us are aware that we must take care of the environment, and the ___________(major) of us take steps to save energy and reduce waste and ____________(pollute). But recently, some “green________(true) ” have been shown to be only half true, or even _____________(complete) false. Here are some common ones. Which are really green? Paper shopping bags are better than plastic ones. Plastic bags cause litter and are a danger _____ wild animals, which mistake them ______ food. It takes hundreds of years for plastic _________(break) down, but much less time for paper. Because of this, people think paper bags are the better environmental __________(choose). However, __________(make) a paper bag uses four times as much energy _____ making a plastic bag and up to three times______ amount of water（倍数表示法）.The process also produces more greenhouse gases.In fact, both kinds of bags are bad______ th