(课件网) Section Ⅰ Welcome to the unit & Reading 1 篇章助解·释疑难 目 录 2 文本透析·剖语篇 4 课时检测·提能力 3 核心知识·巧突破 篇章助解·释疑难 力推课前预习 1 The future is in our genes① Good afternoon， ladies and gentlemen. Thank you all for coming to this lecture.[1]Over the course of my career， I have seen many wonderful scientific developments， but none are as game-changing② as genome③ editing.[2]I am full of excitement about the possibilities this scientific advance④ can bring and I hope to share my excitement with you today. [1]本句是由but连接的并列句。前一分句中使用现在完成时，后 一个分句中“none ...as＋原级＋as”结构表示最高级含义。 [2]本句是由and连接的并列句。前一分句中this scientific advance can bring是省略了关系代词that或which的定语从句，修饰先行词 possibilities。 【读文清障】 ①gene n.基因 the future is in our genes 未来就在我们的基因之中 ②game-changing adj.改变游戏规则的（指彻底改变事态发展的） ③genome n.基因组，染色体组 genome editing 基因组编辑 ④scientific advance 科学进步⑤play a critical role in 在……中发挥关键作用 [3]As many of you may already know， genes play a critical role in⑤ shaping⑥ our lives.Everything from the colour of our eyes to our talent for maths depends on⑦ genes. The complete set of genes inside a cell⑧ or a living being⑨ is called a genome.[4]Our own personal genome carries all the information needed to make us grow and develop.It also contains information that helps determine our lifespan⑩ and affects our chances of contracting certain diseases. Some people， for example， carry a gene that makes them more likely to catch a certain virus or develop a particular form of cancer . [3]As引导非限制性定语从句，意为“正如，正像”， 用来指代 后面整个句子的内容。 [4]needed to make us grow and develop为动词-ed短语作后置定 语，修饰名词information，其中grow and develop用作宾语补足语。 ⑥shape vt.塑造；决定……的形成，影响……的发展 shape one’s life 塑造某人的生命 ⑦depend on依赖，依靠 ⑧cell n.细胞 ⑨being n.生物；存在；身心 ⑩lifespan n.寿命，有效期 affect vt.影响；侵袭，使感染；深深打动 contract vt.感染（疾病）；与……订立合同（或契约） n.合 同，合约 carry a gene 携带一种基因 virus n.病毒；（计算机程序中的）病毒 cancer n.癌症；邪恶，毒瘤 [5]Geneticists have been trying to identify which genes relate to which diseases， as they believe genome editing is an effective means of disease treatment and prevention .It allows geneticists to make changes to the genome by correcting， adding， deleting or replacing specific parts of the genetic material. In the near future， geneticists hope to apply this technology to treat a wide range of health problems. Soon we may be able to use such treatments to restore a blind person’s vision or give someone who was born deaf an excellent sense of hearing.[6]Ultimately ， this new technology might even make it possible to prevent diseases from ever developing by correcting abnormal gene ... ...
