高三英语一轮复习 M4 unit 12 Culture Shock(第1课时)课件 北师大版(广东专用) 课件VIP免费

Part 2 Of 22013 届学海导航高三英语一轮复习北师大版广东专用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1. Our armies are determined to __________ our great motherland.2. We should do something practical to ________ the river from pollution.3. Two different soldiers ________ the gate twenty-four hours every day.defendprotectguard11. 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 t...