Unit 6 Lesson 3 DNA is fantastic（教学课件）英语新教材冀教版九年级上册

该初中英语课件围绕“DNA是生命密码”主题，聚焦DNA相关核心词汇（如blueprint、genetic等）及一般将来时被动语态，通过学生讨论“对DNA的了解”和抖音3D动画视频导入，搭建从生活经验到科学知识的学习支架，衔接前后内容。 其特色在于融合科学主题与语言教学，通过词汇辨析（如complicated的词性变化及搭配）、语法练习（被动语态填空）提升语言能力，阅读问题（比较生物与汽车复杂度）培养思维品质，中英文对照文本助力理解。学生能提升科学素养与语言运用能力，教师可借助系统资源高效教学。

Lesson3 DNA is fantastic! A Journey into the Code of Life Learning Objectives 01 Knowledge Master Key Vocabulary Understand and use terms like DNA, genetic, inherit, evidence, and unique accurately. 02 Skill Grammar Application Comprehend and correctly use the Passive Voice in the Simple Future Tense. 03 Affective Scientific Literacy Appreciate the profound impact of science and technology on daily life. Lead in 01 02 While- reading 03 04 Summary 05 Language points 06 Exercises 07 Homework 08 Contents Grammar Post-reading blueprint /ˈbluːprɪnt/ complicated /ˈkɒmplɪkeɪtɪd/ living /ˈlɪvɪŋ/ strongly /ˈstrɒŋli/ twin /twɪn/ repeat /rɪˈpiːt/ identify /aɪˈdentɪfaɪ/ n. 蓝图；方案 adj. 复杂的 adj. 活着的；居住的 adv. 深刻地；强地 n. 双胞胎之一 v. 重复；重做 v. 确认；找到 New words relative /ˈrelətɪv/   distant /ˈdɪstənt/ gene /dʒiːn/ interact /ˌɪntərˈækt/ edit /ˈedɪt/ genetic /dʒəˈnetɪk/ n. 亲戚；亲属adj. 比较的；相关联的 adj. 遥远的；不同的 n. 基因 v. 相互作用；交流 v. 编辑；编纂 adj. 基因的；遗传学的 New words PART 01 Lead in DNA (=deoxyribonucleic acid) 脱氧核苷酸 1 What do you know about DNA? Talk with your partner. Lead in PART 02 While-reading 2 Read the passage and answer the questions. While-reading A What is a blueprint? B Which is more complex, building a living thing or building a car? C Whose DNA is related to yours? 2 Read the passage and answer the questions. While-reading A What is a blueprint? A blueprint is a drawing that shows how to build something. 2 Read the passage and answer the questions. While-reading B Which is more complex, building a living thing or building a car? A person is a lot more complicated than a car. 2 Read the passage and answer the questions. While-reading C Whose DNA is related to yours? Your parents, grandparents and more distant relatives. PART 03 Language points Para 1 English Text A blueprint is a drawing that shows how to build something, like a car. But a person is a lot more complicated than a car. The blueprints to create a person, an animal, a plant or any other living being — are called DNA. 中文译文 蓝图是展示如何建造某物的图纸，比如一辆汽车。但是人要比汽车复杂得多。用来创造人类、动物、植物或其他任何生物的蓝图——被称为DNA。 While-reading 1.7.2013 同学们好，今天我们来学习一篇非常有趣的文章，主题是DNA。首先，我们来看第一段。这里提到了一个词“blueprint”，意思是蓝图。就像建造汽车需要蓝图一样，创造生命也需要蓝图，这个蓝图就是DNA。大家注意这句话的比较级用法，"a lot more complicated than"，表示“比……复杂得多”。 ‹#› Language points 1. complicated /ˈkɒmplɪkeɪtɪd/ adj. 复杂的，难懂的 complicated structure 复杂的结构 complicate v. 使复杂化 uncomplicated adj. 简单的，不复杂的 complication n. 复杂情况；并发症 例句 :The human body is far more complicated than a machine. 人体远比一台机器要复杂。 Para 2、3 English Text How tall are you? What colour are your eyes? What size are your feet? All these things are strongly influenced by your DNA before you were born. Here are some fantastic facts about DNA: 中文翻译 你有多高？你的眼睛是什么颜色？你的脚有多大？所有这些特征在你出生前都深受你的DNA的强烈影响。 以下是关于DNA的一些奇妙事实： While-reading 1.7.2013 接下来看第二段。这里用了几个问题来引出DNA的作用。我们的身高、眼睛颜色、脚的大小等等，这些身体特征都是由DNA决定的。"be influenced by" 是一个重要的短语，意思是“受……影响”。这说明DNA在我们出生前就已经为我们设定了很多基本特征。 ‹#› Language points 2.strongly /ˈstrɒŋli/ adv. 强烈地；极大地；坚定地 strong /strɒŋ/ adj. 强大的；强烈的 strength /streŋθ/ n. 力量，强度 strengthen /ˈstreŋθn/ v. 加强，增强 be strongly influenced by… 深受…… 的影响 例句：Many people strongly support this new policy. 很多人坚定地支持这项新政策。 Para 4 English Text Except for some twins, each living thing has its own unique DNA. You have your own DNA, but it repeats patterns from your parents'. From your DNA, scientists can identify not only you, but also your relatives. That includes your parents, grandparents, and more distant relatives — their DNA just wouldn't be quite as similar to yours. 中文译文 除了一些双胞胎外，每种生物都有其独特的DNA。你有自己的DNA，但它重复了你父母的模式。从你的DNA中，科学家不仅可以识别出你，还可以识别出你的亲属。这包括你的父母、祖父母以及更远的亲戚——只是他们的DNA与你的DNA相似度不那么高。 While-reading 1.7.2013 现在我们来看关于DNA的一些奇妙事实。首先，除了同卵双胞胎，每个人的DNA都是独一无二的。这就像我们的身份证一样。同时，我们的DNA也继承了父母的特征。所以，科学家可以通过DNA来识别我们和我们的亲属，甚至是远亲。这里的 "not only...but also..." 是一个非常重要的句型，表示“不仅……而且……”。 ‹#› Language points 3. repeat /rɪˈpiːt/ v. 重复；复制；重演 n. 重复 repeated /rɪˈpiːtɪd/ adj. 重复发生的 repetition /ˌrepəˈtɪʃn/ n. 重复，重现 例句：Please repeat your question slowly. 请缓慢地重复一遍你的问题。 Language points 4.identify /aɪˈdentɪfaɪ/ v. 识别；辨认；鉴定 identification /aɪˌdentɪfɪˈkeɪʃn/ n. 识别；身份证明 (ID) identical /aɪˈdentɪkl/ adj. 完全相同的 例句：You can identify the bird by its red tail. 你可以凭借红色的尾巴辨认这种鸟。 Language points 5. relative /ˈrelətɪv/ n. 亲戚，亲属；adj. 相对的 relate /rɪˈleɪt/ v. 联系；讲述 relation /rɪˈleɪʃn/ n. 关系，联系 relationship /rɪˈleɪʃnʃɪp/ n. 人际关系 例句：I will visit some of my relatives during the holiday. 假期期间我会拜访我的一些亲戚。 Para 5 English Text There are copies of your DNA in every part of your body. For example, your finger has the same DNA as your hair. 中文译文 你身体的每个部位都有你的DNA副本。例如，你的手指和头发拥有相同的DNA。 While-reading 1.7.2013 第四个事实是，我们身体的每一个部分都有DNA的副本。这意味着，无论是我们的头发、血液还是皮肤细胞，它们的DNA都是一样的。这就是为什么法医可以通过一根头发或一滴血来确定一个人的身份。 ‹#› Para 6 English Text 中文译文 Some health conditions can be caused by problems in your DNA. Scientists can look for these problems and, sometimes, help you before you become sick. Future technologies will allow scientists to better understand how genes interact with each other and how they will be edited to prevent genetic diseases. 一些健康问题可能是由 DNA 中的缺陷引起的。科学家能够对这些问题进行排查，有时，甚至能在你患病前提供帮助。未来的技术将使得科学家能够更深入地理解基因之间的相互作用方式，并通过编辑基因来预防遗传性疾病。 While-reading 1.7.2013 第五点，DNA与我们的健康息息相关。一些疾病是由DNA的异常引起的。现在的科学技术已经可以帮助我们提前发现这些问题，并进行干预和治疗，这就是所谓的精准医疗。 ‹#› Language points 6. gene /dʒiːn/ n. 基因 genetic /dʒəˈnetɪk/ adj. 基因的；遗传的 genetics /dʒəˈnetɪks/ n. 遗传学 例句：Scientists keep doing research on plant genes. 科学家持续对植物基因开展研究。 Some plants show special genetic features. 一些植物表现出特殊的遗传特征。 Language points 7. interact /ˌɪntərˈækt/ v. 相互作用；相互影响；交流互动 interaction /ˌɪntərˈækʃn/ n. 相互作用，互动 interactive /ˌɪntərˈæktɪv/ adj. 交互式的 interact with sb. 和某人互动 例句：Kids should learn how to interact with their classmates. 孩子们应该学会怎样和同学交往互动。 Language points 8. edit /ˈedɪt/ v. 编辑；剪辑；编纂 editor /ˈedɪtə(r)/ n. 编辑；编者 edition /ɪˈdɪʃn/ n. 版本 例句：He will edit this article before publishing it. 他会在发表之前编辑这篇文章。 Para 7 English Text 中文译文 DNA plays an important role in our health and technology. It will be widely studied and researched in the coming years as more discoveries are made. What do you think we could do with DNA someday? DNA 在我们的健康和技术中扮演着重要角色。随着更多新发现的出现，它将在未来几年被广泛研究和探索。你认为我们将来可以用 DNA 做什么？ While-reading 1.7.2013 第五点，DNA与我们的健康息息相关。一些疾病是由DNA的异常引起的。现在的科学技术已经可以帮助我们提前发现这些问题，并进行干预和治疗，这就是所谓的精准医疗。 ‹#› PART 04 Summary Summary 核心词汇 Vocabulary blueprint, complicated, twin, identify, relative, distant, gene, interact, edit, genetic 重点短语 Key Phrases a lot more complicated than… 比…复杂 语法聚焦 Grammar Focus 一般将来时被动语态：will be + 动词过去分词 用法：强调动作在将来被发生，关注动作的承受者。 主题感悟 Theme Insight DNA不仅是生命的微观蓝图，更是连接过去与未来的密码。科技的进步正在帮助我们揭开生命的奥秘，探索基因编辑的无限可能，让生命科学更好地服务于人类健康与未来。 1.7.2013 好了，学完了所有知识点，我们来总结一下。这节课我们学习了关于DNA的一些关键词汇和短语，重点掌握了 "not only...but also..." 和 "play an important role in" 等句型。语法方面，我们接触了一般将来时的被动语态。希望大家能理解DNA是生命的蓝图，并且科技正在帮助我们更好地认识生命。 ‹#› PART 05 Grammar Grammar 3 Read the sentences and pay attention to the parts in yellow. Then fill in the blanks. The structure of the passive voice in simple future tense is will be + v‑ed. … they will be edited to prevent genetic diseases. It will be widely studied and researched in the coming years as more discoveries are made. Grammar A An exhibition of model planes ______________ (hold) at the Science Museum next week. B The new science lab _______________ (build) in the coming year. C More fantastic facts about DNA _______________ (discover) in the near future. D Future technologies _______________ (use) to help scientists better understand DNA. 3 Read the sentences and pay attention to the parts in yellow. Then fill in the blanks. will be held will be built will be discovered will be used 被动语态（Passive voice） 在八年级我们已经学习了一般现在时和一般过去时的被动语态，在九年级我们将介绍一般将来时的被动语态。一般将来时的被动语态表示发生在将来的被动动作。一般将来时被动语态的构成如下： 1. shall/will be done 肯定句：She will be greatly missed. 否定句：shall/will+not+be+done She will not be greatly missed. Grammar 一般疑问句：将 shall/will 提到主语的前面 Will she be greatly missed? Yes, she will./No, she won’t. 特殊疑问句：特殊疑问词 + 一般疑问句 Why will she be greatly missed? Grammar 2. be going to be done 肯定句：Some old buildings are going to be put down. 否定句：be 的否定式 + going to be done The problem isn’t going to be discussed at the meeting tomorrow. 一般疑问句：将 be 提到句首 Are these trees going to be cut down? Yes, they are./No, they aren’t. 特殊疑问句：特殊疑问词 + 一般疑问句 When are these trees going to be cut down? Grammar 3. be to be done 肯定句：The sports meeting is to be held on April 10. 否定句：be 的否定式 + to be done The machines are not to be repaired tonight. 一般疑问句：将 be 提到句首 Are new textbooks to be published next week? Yes, they are./No, they aren’t. 特殊疑问句：特殊疑问词 + 一般疑问句 When are new textbooks to be published? Grammar 注意：done 代表及物动词的过去分词。 PART 06 Exercises 1. This math question is much ________________ (complicate) than the last one. 2. The two ________ (twin) share many small living habits. 3. The police can ________ (identification) the thief from the video. 4. I often visit my ________ (relative) during the Spring Festival. 5. Chemicals ________ (interact) when you mix them together. 6. Some old videos ____________ (edit) by workers in the near future. 7. This ancient poem ____________ (study) by middle‑school students next year. 8. Many traffic accidents _________ (cause) by carelessness every year. more complicated Twins identify relatives interact will be edited will be studied are caused 用括号内单词的适当形式填空 Exercise PART 07 Post-reading Jenny: How much do you know about DNA? It's fantastic. Li Ming: I've learned a bit in my science classes. What do you think is fantastic about it? Jenny: ________ There are copies of our DNA in every part of our body. Li Ming: Exactly. ________ 4 Read and complete the conversation. A. In the future, it will be used to diagnose and treat diseases. B. It's amazing that something so small can hold so much important data. C. It's a complex topic. D. My finger has the same DNA as my hair. Post-reading Jenny: DNA testing is becoming more and more common these days. ________ Li Ming: Sounds great. It plays an important role in our health and technology. Jenny: ________ But I think it's really interesting to learn about the building blocks of life and how they shape who we are. D B A C PART 08 Homework Homework 1.Copy the new words and useful phrases 3 times. 2.Finish the grammar exercises on your workbook. Thank you! $