雅思长难句一直是雅思阅读中的一个难点，烤鸭们几乎都被折磨过。今天，雅思小编给大家带来剑9 Test3 Passage3长难句分析，让烤鸭们掌握分析长难句的技巧，攻克长难句，不再是个传说。
1. In the 1940s, he single-handedly created an entire science of communication which has since inveigled its way into a host of applications, from DVDs to satellite communications to bar codes - any area, in short, where data has to be conveyed rapidly yet accurately. (剑9 Test 3 Passage 3)
我们先来认识一些单词：
1. inveigle (vt. 诱骗，诱使)
2. accurately (adv.精确地)
句子结构分析：这句话主干是he single-handedly created an entire science of communication。 Which引导定语从句修饰communication，from DVDs to satellite communications to bar codes 做插入语，破折号后面any area…表解释说明。 in short做插入语，where引导非限制性定语从句修饰area。
译文：20世纪40年代，他一手创立了完整的通信科学理论，随后该理论得到了广泛应用，从DVD到卫星通信，再到条形码——总之，需要快速而又准确传送数据的所有领域都应用到了通信科学。
2. This all seems light years away from the down-to-earth uses Shahhon originally had for his work, which began when he was a 22-year-old graduate engineering student at the prestigious Massachusetts Institute of Technology in 1939. (剑9 Test 3 Passage 3)
我们先来认识一些单词：
1. prestigious(adj. 著名的，有声望的)
2. down-to-earth (adj. 现实的)
句子结构分析：这句话的主干是This all seems light years away from the down-to-earth uses Shahhon originally had for his work。Which引导非限制性定语从句修饰work，22岁的表达法：22-year-old，When引导时间状语从句。
译文：1939年，22岁的Shannon是著名的麻省理工学院工程系的研究生，那时候通信科学的实际应用似乎遥不可及，与当时他在研究工作中实际使用的技术相差很远。
3. As recently as 1993, engineers made a major breakthrough by discovering so-called turbo codes - which come very close to Shannon’s ultimate limit for the maximum rate that data can be transmitted reliably, and now play a key role in the mobile videophone revolution. (剑9 Test 3 Passage 3)
句子结构分析：这句话的主干是由and连接的并列结构：engineers made a major breakthrough by discovering so-called turbo codes and now play a key role in the mobile videophone revolution. by discovering 表示通过某种方式，which引导非限制性定语从句修饰turbo codes，that引导的从句作the maximum rate的同位语。
译文：就在最近的1993年，工程师们取得了一项重大突破，发现了所谓的Turbo码，这与Shannon提出的信息可以安全传送的最大速度极限非常接近。现在，Turbo码在移动可视电话变革中起着关键的作用。
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