Section Ⅱ Welcome to the unit & Reading Step 1 速读———整体理解文意 Ⅰ.明文章大意 What is the main idea of the passage A．The problem of genome editing. B．The fast development of genome editing. C．The greatest inventions in the history of science. D．The new possibilities that gene research can bring. 答案 D Ⅱ.悉篇章结构 What is the structure of the passage？(P＝paragraph) 答案 A Step 2 细读———深度获取细节 1．What do people want genome editing to be used for ①Restoring the eyesight of the blind. ②Correcting abnormal genes. ③Making weapons. ④Giving a deaf person an excellent sense of hearing. A．①②③ B．②③④ C．①②④ D．①③④ 答案 C 2．What does the phrase “designer babies” in paragraph 4 probably mean A．It refers to babies that have developed from embryos(胚胎) with certain desired characteristics. B．It refers to babies that have been developed by scientists in the laboratories. C．It refers to babies that have been designed by geneticists in the laboratories. D．It refers to babies that have been selected by their picky parents. 答案 A 3．Which of the following can be used to describe genome editing A．Useful but impossible. B．Exciting but unnecessary. C．Innovative but unrealistic. D．Promising but dangerous. 答案 D 4．Which of the following can best describe the attitude of the author towards genome editing A．Critical. B．Indifferent. C．Favorable. D．Unclear. 答案 C Step 3 读后———课文语法填空 As we all know，genes play a crucial role in shaping our lives.It helps determine how long we live and 1.affects(affect) our chances of contracting certain diseases.Geneticists believe genome editing is an effective means 2.of treating and preventing diseases.In the near future，they hope to use the technology to treat 3.a wide range of health problems.It could be used to restore a blind person’s sight or to bring excellent hearing to the people 4.who/that were born deaf.5.Ultimately(ultimate)，the new technology may even prevent the development of diseases by correcting 6.abnormal(normal) genes.We will be able to use genome editing to increase the human 7.resistance(resist) to colds and flus，to make people taller，to help their muscles develop faster，to sharpen all of their senses，or to make them more intelligent.However，we must find ways to prohibit the technology from running wild，which means 8.putting(put)appropriate controls in place to ensure that genome editing will work to our advantage. There is still much 9.to be explored(explore) on genome editing.10.Without doubt，genome editing is one of the greatest inventions in the history of science. Ⅰ.补句子 析结构 1．I am full of excitement about the possibilities this scientific advance can bring and I hope to share(share) my excitement with you today.(P30，Para.1) 结构分析：此句是and连接的并列复合句。and前的分句中this scientific advance can bring是定语从句，修饰先行词possibilities，从句省略了关系代词that/which。 汉语翻译： ... ...
