外研版（2019）英语必修第二册《Earth first》SectionC PPT课件
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外研版高中英语必修二《Earth first》SectionC PPT课件，共57页。
语言知识讲练
高 频 词 语
1. majority n. 多数，大多数
【典例促记】
⊙Most of us are aware that we must take care of the environment, and the majority of us take steps to save energy and reduce waste and pollution. (P68)
我们大部分人都意识到要保护环境，我们大多数也采取了各种行动节约能源，减少浪费和污染。
⊙A majority of political historians give a favourable remark, while a majority of economists are more doubtful.
大多数政治历史学家对其给予了正面的评价，而多数经济学家则表示出了更大的疑虑。
2. break down 打破，毁掉；出毛病；分解
【典例促记】
⊙It takes hundreds of years for plastic to break down, but much less time for paper. (P68)
塑料需要数百年才能分解，而纸的降解时间要短得多。
⊙Our car broke down on the way.
我们的车在半路上坏了。
⊙A big fire broke out in the kitchen.
突然间厨房里着起了大火。
3. remove v. 移走，搬开，去掉
【典例促记】
⊙To make sure your appliance is in fact off, remove the plug from its power supply. (P69)
为确保电器彻底关闭，请从电源上拔掉电器插头。
⊙His name was removed from the list.
他的名字从名单上除掉了。
⊙He was removed from his position as chairman.
他被撤去主席的职务。
⊙Urban citizens remove from the city to the countryside for wider space and fresher air.
城市居民从城市搬到农村以享受更广阔的空间和呼吸更清新的空气。
常 用 句 式
1. However，making a paper bag uses four times as much energy as making a plastic bag and up to three times the amount of water. (P68)
然而，生产纸袋的耗能为塑料袋的四倍，耗水量则多达三倍。
2. It is the production of food, not its transport, that uses most of the energy and produces most of the greenhouse gases. (P69)
相比于运输，食物的生产过程才是消耗大部分能源及产生大部分温室气体的原因。
【典例促记】
⊙It was the actress who (that) played the heroine of the play.
就是那个女演员饰演这部剧的女主角。
⊙It was on Monday night that all this happened.
所有这一切发生在周一晚上。
⊙It was me that she helped yesterday.
昨天她帮助的人是我。
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