Unit 12 Section Ⅱ Understanding the Text（课件）-【创新思维】2022-2023学年新教材高中英语选择性必修第四册同步导学案（北师大版2019）

Section Ⅱ　Understanding the Text 北师英语 选择性必修第四册 必备知识 通课文 质量评估 提能力 课时作业 知能提升 Part 1　LESSON 1 　　　　　　　　　　 SCIENTIFIC BREAKTHROUGHS If you had to choose the single most important discovery of the 20th century, you would have a real problem on your hands. In just 100 years, the world has changed completely.Amazing discoveries were made in medicine，communications and transport, not 北师英语 选择性必修第四册 必备知识 通课文 质量评估 提能力 课时作业 知能提升 to mention① our knowledge of the world and space.Medical advances ranged from discovering the causes of diseases under microscopes② to staging③ operations to replace diseased organs with donated ones.Communications changed with the introduction of mobile phones, and the way we correspond went from writing letters to emailing and sending instant messages. We started flying around the world, launching④ satellites⑤ into orbit⑥ and, at the same time, scientists figured out how to split⑦ the atom, previously⑧ thought to be the smallest particle⑨ of matter in the universe. 北师英语 选择性必修第四册 必备知识 通课文 质量评估 提能力 课时作业 知能提升 [读文清障] ①not to mention更不用说 ②microscope/'maIkrəskəʊp/n.显微镜 ③stage vt.组织；筹划；举行 n．阶段，时期；舞台 early stage早期，初期 on stage在台上 ④launch/lɔːntʃ/vt.发射；发动，发起，开始从事 ⑤satellite/'sætəlaIt/n.人造卫星；卫星 北师英语 选择性必修第四册 必备知识 通课文 质量评估 提能力 课时作业 知能提升 ⑥orbit/'ɔːbIt/n.轨道 vi.& vt.沿轨道运行 earth orbit地球轨道 ⑦split/splIt/vi.& vt.分割，把……分开；分成(不同部分) split up分裂；分离 ⑧previously adv.以前；之前 ⑨particle/'pɑːtIkəl/n.粒子，质点 北师英语 选择性必修第四册 必备知识 通课文 质量评估 提能力 课时作业 知能提升 [句式评析] 本句含有虚拟条件句，表示与现在事实相反的假设。主句谓语用“would＋动词原形”，从句谓语用过去式。 and连接两个并列分句；在第二个分句中，we correspond是定语从句，修饰先行词the way，引导词用that/in which，通常可以省略。 and连接两个并列分句。how to split the atom是“疑问词＋动词不定式”结构，作figured out的宾语；previously thought to be...作后置定语修饰the atom。 北师英语 选择性必修第四册 必备知识 通课文 质量评估 提能力 课时作业 知能提升 Although it is impossible to choose the most important discovery, it is possible to single out 10 a