Unit 5 Lesson 29（课件） 2025-2026学年冀教版（2012）九年级英语全册

该初中英语课件以“DNA—The Story of You”为主题，围绕DNA的基本概念、功能及遗传作用展开，课堂导入从图片观察（男孩像父亲）提问，引出DNA来源，通过“什么是DNA”“DNA如何影响生物特征”等问题链，结合词汇表、短语解析等支架，帮助学生从现象到本质构建知识。 其亮点在于融合语言能力与思维品质培养，通过词汇学习（如blueprint, complex）、句型操练（比较级修饰词far）和问题探究（如“双胞胎DNA是否相同”“DNA与健康的关系”），提升语言运用与分析推断能力。设置互联网搜索任务（改变食物DNA的利弊）培养学习能力，教师可借助结构化练习（填空、翻译）高效教学，学生在真实情境中深化理解并发展自主学习策略。

Lesson 29:DNA-The Story of You Look at the picture. What can you find? 林大骏 林永健 The boy looks like his father. Why do they look the same? 林大发 林永健 The child's DNA comes from his parents. What do you know about DNA? This is the shape of DNA. It's magic. DNA is complex.It can help us identify people who are related to us. be related to.与..相关 They are their grandson and granddaughter.They are twins. In general,the twins look alike. repeat /r''pi:t/v.重复；复述；背诵 Sorry,I couldn't hear you. Could you please repeat what you said just now? pattern/'pxtn/n.模式；形式 He dances to the pattern of the music. 他随着音乐的节奏跳舞。 blueprint/'blu:print/n.蓝图 When we build a building,we always follow the blueprint. instruction/In'strakfn/n. 日3次 指示；说明 一次1片0 She follows the instructions to take her medicine.