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课件网) Vocabulary Expansion Unit 2 Cloning Think about how they differ. 想想他们如何不同(P 25) 【 熟读深思】朗读下列句子并提炼出习惯搭配。 ⑴ Chinese differs greatly from English in pronunciation.(搭配_____表示“某物与某物不同”) A differ from B 1. differ vi. 不同；不像；看法不同（disagree） ⑵ I differ with him on how to solve the problem. (搭配 _____ _____表示“某人与某人在……方面意见不同”) ⑶ The two nations differ in culture and religion.(搭配_____表示“在……方面不同”) sb. differ from/with sb. on/ upon/about sth. differ in ... ⑷ An industrial robot must be different from a medical robot.(搭配_____表示“不同于……”) ⑸ If you do so it will make a great difference. (搭配_____表示“有很大影响”) be different from make a difference A differ from B A与B不同 differ with sb. on/about sth 与某人在……方面意见不同(=disagree with sb) A and B differ in A与B在……方面不同 be different from 与……不同 make a difference 起作用；产生影响 make no difference 没什么不一样 ［归纳总结］ ［灵活运用］用a, in, on, with, from填空。 When we were children, my sister differed greatly __1___me in character. I differed __2_____ her __3 __how to solve the problem. Besides, we differed __4__ appearance. She was tall and beautiful. Her good looking made __5 __great difference to her success. from with on in a It is a difficult task to undertake. 它是一项很难完成的任务。(P 11) ［读一读］朗读下列句子，并指出黑体单词的意义。 (1)University professors both teach and undertake research. 承担；从事。句意：大学教授既要教学又要从事研究工作 (2)He undertook to finish the job by Friday. 答应；同意。句意：他答应在星期五以前完成那工作。 2. undertake vt. 承担；从事；着手 (set about) undertake to do sth.同意或答应做某事(agree or promise) ［归纳总结］ ［灵活运用］用undertake翻译下列句子。 (1)他叫我们参观他家乡并同意做我们的向导 He asked us to visit his hometown and undertook to be our guide. (2)你在找到一份理想工作之前，可以暂时从事这项工作。 You can undertake the work for the time being before you find an ideal job. But at last the determination and patience of the scientists paid off in 1996 with a breakthrough — the cloning of Dolly the sheep. 但是，科学家的决心和耐心最终得到了回报，这就是1996年具有突破性的克隆羊“多莉”的诞生。(P 11) 3. pay off vt. 还清(债)(give someone all the money that you owe them) vi. (努力、坚持等)带来好结果 (bring good results; be successful) ［熟读深思］ ⑴ His efforts paid off when the girl accepted his proposal. 词性 vi. ：意义 （努力、坚持等)带来好结果 词性 vt. ：意义 还清(债) ⑵ I’ll have paid off my debt by this time next year. ［灵活运用］根据汉语意思完成英语句子 ⑴ 他们三年才还清欠债。 It took them three years_____ . to pay off the debt ⑵ 医生看到病人睁开了眼睛，他的努力成功了。 The doctor _____when he saw the patient opened her eyes. paid off Cloning scientists were cast down to find that Dolly’s illnesses were more appropriate to a much older animal. 研究克隆的科学家发现多莉得的病更容易 ... ...
