河北省迁安一中高二英语：book8Unit2： Language Points课件.ppt

用介词back, off, to,填空: (1） -----your effort is sure to pay_____. ---- Thank you for your encouragement （2） The supermarket ________ which he had ever paid a visit， was burnt to the ground. （3） How can I pay you ________ for all your kindness？ ?（4） Well， after these years， we’ve at last paid ________ all our debts. off to back off 即时练习： 将下列句子译成英语 (1) 他在父亲的帮助下还清了全部债务。 ________________________________ ___________________ (2) 你的努力会有好结果的。 __________________________ He paid off all his debts with the help Your effort is sure to pay off. of his father. Bye Bye Unit 2 Cloning Language points 1. differ vi. 观察示例: In pairs, look at these pictures and discuss which ones are natural clones and which ones are man-made. Explain how they differ. 两人一组, 观察图片并讨论哪些是自然无性繁殖, 哪些是人工的。解释它们的区别。 A：重点单词 1) Chinese differs greatly from English in pronunciation.（汉语与英语在发音上有很大的不同。） 2) Modern airplanes differ from early ones.（现代飞机跟早期的在很多方面有所不同。） 3) I differ with him how to solve the problem.（ 对于如何解决问题, 我跟他的意见不一致。） They differ with each other on moral standards. （关于道德标准, 他们的见解不同 。） 归纳拓展： differ ( vi.), 主要有两个义项：“不同, 相异；不同意, 意见相左”。常见的搭配有： 1). sb. differ from/with sb. on/upon/about sth.; (某人与某人在....方面意见不同) 2). sth. and sth. differ in… ;（某物与某物在....方面不同） 3). sth. differ from sth .（某物与某物不同） 4. difference (n.)不同 different (adj.) 不同的 即时练习： 用介词 from, with, on, about, upon 或 in 填空。 (1) We differ _________ him _________ _____ that question. from/with on/about/ upon (2) The two nations differ __ culture and religion. (3) The climate here differ _________ that of the South. in from/with 汉译英： 这个小男孩在性格方面不同于他的母亲。 The boy differs from his mother in character. 2. undertake vt. (undertook; undertaken) 观察示例: The procedure is difficult to undertake, of course. 当然, 这个过程很难实施。 The scientist undertakes the experiment. 科学家从事这项实验。 I can undertake the responsibility for the changes.