Unit 9 Saving the earth

Unit 9 Saving the earth⊕考纲要求：◆ 考纲规定的考试范围:重点单词与短语 coal；content；South Africa；killer；poverty；equality；fairness；cooperation；willingness；wipe；per；defend；incorrect；affect；advise；the United Nations；take part in；take action；air conditioner；in harmony with...；put an end to；advise sb.（not） to do sth.句型Among the speakers was China's then Premier Zhu Rongji, ...全倒装的用法Not until we know more will we be able to improve the situation.否定词位于句首倒装的用法Had I known that ..., I would never have bought one. 虚拟语气的省略倒装A better understanding of the environment is necessary, as is the willingness to act. as 引导非限制性定语从句语法：倒装◆ 复习本章要达到的目标1. 掌握 content； poverty；equality；fairness；cooperation；willingness；wipe；per；defend； affect；advise； take part in；take action；air conditioner；in harmony with...；put an end to；advise sb.（not） to do sth.；on end；等重点单词及短语的用法。2. 掌握虚拟语气的省略倒装；as 引导非限制性定语从句和倒装的用法。⊕教材知识归纳◆知识归纳1. Coal is a valuable resource that can be used to produce energy, but it can also cause serious pollution.valuable 意为“贵重的、重要的；有益的；有作用的”， 相当于 be of valueHe bought me a valuable diamond ring as a birthday present.他给我买了一只贵重的钻戒作生日礼物。This experience is valuable to me.这一经历对我很有用。His advice is very valuable to me in my studies. = His advice is of great value to me in my studies.他的建议对我的学习很有价值。注意：valuable；priceless；invaluable；precious worthless 的区别：（1）valuable 指任何值钱的或可以带来巨额利润的、非常有用的或受人珍视的东西。（2）priceless 意为“无价的，贵重的”，用于加强语气、加深程度等情况。We saw priceless paintings at the museum.我们在博物馆看到贵重的名画。（3）invaluable 意为“无法估价的”，不用于谈金钱...