Unit 6 3 DNA is fantastic!课件 2026—2027学年冀教版九年级英语上册

该初中英语课件围绕“DNA is fantastic!”主题，系统呈现DNA的定义、健康与科技中的作用及核心科学词汇。课堂导入通过“猜谜游戏”（如“It’s in our body... It’s DNA”）激活已知，Pre-reading环节以重点词汇（blueprint, unique）和思考问题搭建支架，衔接阅读中“DNA是生命蓝图”等细节理解，形成连贯知识链。 其亮点在于融合语言能力与思维品质培养，通过一般将来时被动语态练习（如“More DNA facts will be discovered”）和对话填空（讨论DNA未来应用）提升语言运用，Pre-reading问题引导分析推断。采用结构化短语总结（如“play an important role in”）强化记忆，分层作业满足不同需求。学生能提升科学英语表达与探究能力，教师可借助完整流程和多样活动高效教学。

3 DNA is fantastic! Learning objectives By the end of this lesson, you will be able to: 1.understand key details in the passage, explain what DNA is and its role in health and technology, and retell DNA facts in simple English. 2.master the simple future passive voice (will be + v.-ed) and core science-related vocabulary in context through fill-in-the-blank exercises. 3.discuss the importance of DNA with a partner and share ideas on its future applications in science and health. Lead in Play a guessing game . It’s in our body. It makes you look like your parents. It’s special for everyone. It’s DNA. 1 What do you know about DNA? Talk with your partner. 1 What do you know about DNA? Talk with your partner. DNA is in our body. It makes us look like our parents. It decides our looks and height. Everyone has unique DNA. 2 Read the passage and answer the questions. Look at the title and the picture , and guess what the passage talks about? It’s DNA. Pre-reading blueprint unique influence Before reading,I have three words to show you . These words are important in the passage. Let’s guess. 1.Why is DNA called a “blueprint”? 2.Why is each person’s DNA “unique”? While-reading（fast reading) DNA is the blueprints to create a person, an animal, a plant or any other living being. 1.What is DNA, according to the passage? 2.How many fantastic facts about DNA are mentioned? Three 2 Read the passage and answer the questions: 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? A ： A blueprint is a drawing that shows how to build something, like a car. B:Building a living thing is more complex than building a car. C:Your DNA is related to your parents, grandparents, more distant relatives, and (for some people) your twin. 3 Read the sentences and pay attention to the parts in yellow. Then fill in the blanks. ... they will be edited to prevent genetic diseases. ... it will be widely studied and researched in the coming years as more discoveries are made. 一般将来时的被动语态：will be + v.-ed The structure of the passive voice in simple future tense is will be + v.-ed. A An exhibition of model planes __________ (hold) at the City Museum next week. B The new science centre __________ (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. will be held will be built will be discovered will be used 4 Read and complete the conversation. A In the future, it will help to diagnose and treat diseases. B It's amazing that something so small can hold so much important data. C It's a complex science. D My finger has the same DNA as my hair. Jenny: How much do you know about DNA? It's fantastic. Li Ming: I've learnt 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. __________ 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 Show time Checklist Stars Language(语言正确) Pronunciation(发音标准) Body language(使用肢体语言) Creation(有创意) Excellent Great Good DNA makes us one-of-a-kind, yet ties us to family and every living thing. We are special, not alone. Language Points 1. Except for some identical twins, each living thing has its own unique DNA. except for “除了…… 之外”，用于引出一个与整体情况不同的例外，对整体情况进行修正或补充说明。 辨析 except for & except 词汇 含义 位置 例句 except 从整体中排除同类中的一个或几个 句中、句末均可 Everyone is here except Tom. except for 对整体情况进行修正或补充，排除异类 句首、句中、句末均可 The essay is good except for a few spelling mistakes. Language Points 2.All these things are strongly influenced by your DNA before you are born. influence为动词意为“影响”= affect， 常用搭配 be influenced by受…… 影响 名词：影响， 常用搭配 have an influence on对…… 有影响 例句: His parents' values have a strong influence on him. 父母的价值观对他影响深远。 Language Points 3. For example, your fingernail has the same DNA as your hair. the same ... as 表示 “和…… 一样”。 例句: He has the same hobby as his brother. 他和弟弟爱好一致。 Language Points 4.Some health conditions can be caused by problems in your DNA. be caused by sth. 表示 “某事是由某事引起的”，强调因果关系，且主语是结果。 例句: Many diseases are caused by unhealthy lifestyles. 许多疾病由不健康的生活方式引发。 Language Points 5. ...how they will be edited to prevent genetic diseases. prevent 动词 ：阻止、防止。 常用搭配 prevent sb. (from) doing sth.阻止某人做某事 prevent sth.防止某事 例句: Washing hands can help prevent the spread of disease. 洗手有助于预防疾病传播。 Language Points 6. DNA plays an important role in our health and technology. play an important role in sth. / doing sth. 表示 “在某事 / 做某事中起到重要作用”。 例句: Exercise plays an important role in keeping healthy. 运动对保持健康起着重要作用。 Summary Summary …… 的蓝图 / 构想 深受…… 的影响 除了…… 之外 独特的 DNA 重复来自…… 的模式 / 片段 不仅…… 而且…… 远亲 与…… 相似 …… 的副本 / 复制品 健康状况 / 疾病 与…… 相互作用 / 影响 blueprint for… except for… unique DNA repeat patterns from… not only… but also… distant relatives be similar to… copies of… health conditions interact with… be strongly influenced by… Summary 预防遗传病 在…… 中扮演重要角色 / 起重要作用在未来几年里 在不久的将来 处理 / 利用…… 生命的基石远亲 塑造我们是谁 / 决定我们的身份 prevent genetic diseases in the coming years in the near future do with… building blocks of life shape who we are play an important role in… Exercise 一、选词填空（从方框中选择合适的短语并用其正确形式填空） play an important role in, be strongly influenced by, except for, in the coming years, the same...as... 1.Your personality your family environment and life experiences. 2._______________ a few minor mistakes, your composition is excellent. 3.Renewable energy will protecting the environment in the future . 4.Your fingerprint is not _______________ anyone else's in the world. 5.Scientists believe that more breakthroughs in genetic research will be made _______________. is strongly influenced by Except for play an important role in in the coming years the same as Exercise 二、翻译下列句子 1.未来将会建造更多新学校。 2.他的成功深受努力的影响。 3.我们应该尽力防止污染。 4.Reading plays an important role in our study. More new schools will be built in the future。 . We should try our best to prevent pollution. His success is strongly influenced by his hard work. 阅读在我们的学习中起着重要作用。 Basic homework Practical homework Extended homework Read the passage DNA is fantastic! aloud 3 times and underline all the passive voice sentences in simple future tense. Work with a partner. Ask and answer 3 questions about how DNA influences our appearance and health. Write 4 sentences about future uses of DNA technology, using at least one simple future passive structure in each sentence. null 115882.68 $