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1、选择性必修一 Unit 3 ConservationTopic talk and lesson 1 语言点1.urgent adj.紧急的，急迫的urgency n. 紧急；催 urge n.强烈的欲望；冲动 vt.催促；力劝；大力推荐urge sb to do sth 催促某人做某事have an urge to do sth 渴望做某事【佳句】Additionally, it is urgent that we should raise public awareness of the importance and value of protecting the historic site.
2、此外，迫切需要提高公众对保护历史遗址的重要性和价值的认识。(应用文之投稿信)Standing on the stage，I felt so nervous that I even had an urge to escape站在舞台上，我感觉如此紧张以至于我有股想逃的冲动。2informative adj.有教育意义的information n.U通知;消息;情报;信息inform vt.告知;通知inform sb.of sth.告诉/通知某人某事keep sb.informed (of.)使某人随时了解()3decrease n. 减少；减少的量 vi.& vt.减少 (1)decrease
3、 / increase by减少/增加了decrease / increase(from.)to (从)减少/增加到(2)on the decrease正在下降；在减少on the increase正在增长；在增 【佳句】On behalf of School Students Union, I call on all of my fellow students to do what we can to help to decrease the chances of disease infection.我代表学校学生会，呼吁所有同学尽我们所能，减少感染疾病的机会。(应用文之演讲稿)Compar
4、ed with last year，the traffic accidents in the city have decreased by 30%.The number of boarders of the school has decreased to three hundred.4blame vt.责怪，指责; n.过失；责备be to blame(for)应(为)承担责任；该(为)受责备blame sb for sth 因某事责备某人；把某事归咎于某人【点津】be to blame短语中blame不能用被动形式，该短语为主动形式表示被动含义。It is his carelessness
5、that is to blame for his being injured.5affect v.影响 affection n.喜爱effect n.结果;效力;作用;影响have a great affection for. 非常喜爱.have an effect on. 对.的影响6die out 消失；绝迹，灭绝die away (声音、光线、风等)逐渐减弱；逐渐模糊；逐渐消失die down (火、兴奋、暴风雨、疼痛等)减弱；平息 die of死于(疾病、衰老等) die from死于（环境、事故等外部原因） 7. be at risk 处境危险risk vt.冒的危险n.冒险;危险的
6、人或物;危险,风险risky adj.危险的;大胆的;冒险的risk doing sth 冒险做某事at the risk of doing sth 冒着做某事的危险run/take a risk 冒着8. wipe out 彻底毁灭，抹去 wipe away 擦去wipe up擦干9. have a role 起某种作用;充当角色do ones part 尽自己的职责【教材原句】We all have a role to play in protecting the environment.If we all do our part,we can live a healthier life
7、on Earth.在保护环境方面,我们大家都可以发挥作用。如果我们都尽自己的一份力,我们就能在地球上过上更健康的生活。10varied adj.各种各样的,形形色色的vary vi.& vt.变化,改变variety n.多种样式;不同种类;多变性various adj.各种各样的;多方面的a variety of/varieties of+n (谓语动词根据名词的单复数来定)10. mass adj.大量的；n.大量的东西，一群，一堆。the masses 群众a mass of/masses of 大量；大堆；众多a mass of/masses of既可修饰可数名词又可修饰不可数名词，作主语时谓语动词的单复数由量词的单复数决定。学科网（北京）股份有限公司