2013 届高三广东北师大版英语一轮复习学案：M4 unit 12 Culture Shock（1）10. defend, protect 与 guard 这三个词都有“保护,使安全”之意,也都常 用于 defend / protect / guard…against / from… 结构中。①defend 意为“保卫,捍卫”,指抵抗或防御外来 的威胁、攻击；它还可表示在法庭上或理论 上进行辩护。The people defended the town against the foreign invaders.人民保卫城镇,抵抗外国侵略者。He had a good lawyer to defend him.他有一个好律师为他辩护。②protect 意为“保护”,指的是采取措施以保障 某人或某物的安全,以免受到危险或损害、伤 害等。 He was wearing dark glasses to protect his eyes from the sun. 他戴一副墨镜以保护眼睛不受阳光的刺激。③guard 意为“守卫,警戒,看守”,目的是维护安 全,防备危险的发生。 The gate is guarded by soldiers; you can’t go without a pass. 大门有兵守卫,你没有通行证过不去。用 defend, protect, guard 的适当形式填空Our armies are determined to __________ our great motherland.We should do something practical to ________ the river from pollution.Two different soldiers ________ the gate twenty-four hours every day.defend1protectguard11. concentrate vi. 集中注意力；使集中 concentrate on / upon 把……集中在……上,专心致志于 You must concentrate on your work. 你必须专心于你的工作。 I tried to concentrate my attention upon my chemical researches. 我尽力专心于我的化学研究。I can’t concentrate with that noise going on.到处是噪音,我不能集中精神。concentration n. 专心,集中This book will need all your concentration.读这本书需要你专心致志。12. warn vt. 警告,告诫①warn sb. of sth. 提醒某人注意某事 The newspaper warns the public of the danger of smoking. 报纸提醒公众注意吸烟的危害。②warn sb. against doing sth. =warn sb. not to do sth. 警告某人不要做某事 The doctor warned the patient against smoking. The doctor warned the patient not to smoke. 医生告诫病人不要吸烟。③warn+从句 I have warned h...
