高中英语Unit4AstronomyReading-thescienceofthestarsPeriod1教案新人教版必修3

1、Unit 4 Astronomy I 教学内容分析 本单元的中心话题是“ 天文学”：the science of the stars ；本单元的两篇文章都采纳了表达性文体；第一篇阅读短文根据时间次序主要表达了地球上生命的起源和进展过程；其次篇阅读短文中作者用第一 人称的口吻表达了他和伴侣的登月经受；可以说本单元科学学问含量较高,更能激发同学的 学习爱好和奇怪心；Warming Up 部分共有两个问题, 第一个问题让同学说出八大行星并看图指出各个行星的名称；其次个问题让同学说出自己对天文学哪些方面感爱好以及天文学家所关注的方面；在 高考的重压之下,同学们都想能利用科学的学习方法做到事半功倍而且许

2、多同学也始终做着 将来能成为科学家的梦；所以,该话题会让同学们爱好盎然,积极摸索和争论此方面的内容,从而达到热身的目的；Pre-reading 部分也提出了三个问题,主要是让同学区分宗教信仰、文化传统和科学思 想之间的不同；可以以讲故事的方式让同学彼此之间共享一些有关宇宙和地球起源方面的传 说或故事,这样既能激活他们的思维也能为阅读部分打下基础；Reading 部分描写了地球上生命的起源和进展过程,详细写了由于水的形成才使得地球 上生命的产生成为可能；科学家认为,地球上的生命最初产生于水中；数万年后,陆地上才长出了绿色植物,随后显现了陆栖动物和水陆两栖动物；最初的动物靠孵化繁殖后代,再之 后产

3、生了哺乳动物,人类也随之产生了；文章最终表达的现象发人深省：The earth may become too hot for the lives on it. 它关系到地球上生命的将来；Comprehending 部分通过五个练习题检测同学对本文核心内容的懂得；练习 1 是对文章结构的分析以及大意的概括；练习 地球上生命的起源和进展历程；练习2 通过排序的方式帮忙同学弄清本文的行文线索,也就是 3 提出 5 个小问题,考查同学的深层懂得和推断才能；练习 4 让同学找出文章中显现的连接词,检查同学对文章中句型的熟识和懂得程度,同时仍有助于同学在写作方面得到提高；练习5 让同学挑选一个问题进行回答

4、并向全班汇报,开拓同学的思维并锤炼他们的语言表达才能； Learning about Language 有词汇和语法两部分；第一部分练习让同学学着去应用课文中显现的词语；其次部分是针对主语从句的练习,其中第一题要求同学从课文中找出三个或 更多的主语从句；其次个练习以把主语从句改写成简洁句的形式让同学能对此语法有深层的 明白；第三个练习就以完成句子的方式要求同学更进一步的运用复合句,此部分是对表语从- 1 - 句进行练习； Using Language 包括“ 听力” 、“ 阅读” 、“ 说和写” 三大块；这三部分的话题都是有关科 学的；听力部分主要是介绍三位宏大的科学家；阅读部分讲了一个科幻故

5、事；说和写的中心 话题是登月旅行中必需的工具和可能遇到的问题；该部分的设计由浅入深,层层递进,既练 习了听力又丰富了学问,仍能够锤炼同学们的想象力,拓展同学各方面才能； Summing Up 指导同学归纳和总结在本单元学到的学问有用词汇、惯用表达和语法结 构；II 教学重点和难点 1 教学重点（1）本单元的生词、短语和句型结构；（2）把握主语从句并把它和表语从句进行区分；（3）学会运用科学学问并能结合自己的想象力去解决现实中的问题；2教学难点（1）通过学习相应的科学学问培育同学的制造性思维才能；（2）同学应能够懂得主语从句的用法和作用并能做到学以致用,举一反三；III教学方案 本单元建议分为六

6、课时：第一课时： Warming Up, Talking Workbook & Listening 其次课时： Pre-reading, Reading & Comprehension 第三课时： Learning about Language 第四课时： Using Language 第五课时： Reading task & Speaking task Workbook 第六课时： Listening task & Writing task Workbook IV. 教学步骤：Period 1 （Workbook）Warming Up, Listening（Workbook）& Talkin

7、g Workbook Teaching Goals: 1. To arouse Ss interest in the knowledge of astronomy and science；. 2. To develop Ss ability in listening and speaking. - 2 - Teaching Procedures: Step 1. Leading- in Give Ss a few minutes to say something about science by asking the following questions. （1. ）Who is the f

8、irst man in space,do you know ？（2. ）Which spaceship did Yang Liwei take to space？（3. ）Do you want to go to space if you are given a chance. Step 2. Warming Up Purpose: To introduce the topic of this unit to Ss in the form of asking questions and discussion. Ask some Ss the questions first and then g

9、et Ss to discuss with each other. If time permits, have one or two groups present their answers to the whole class. 1 How many subjects are we studying now. （2） Do you have some scientific studying methods to learn them well. 3 As you see, a large number of students want to become scientists in the

10、future. But what kind of qualities and skills do we need to be real scientists. Step 3. Talking Workbook 1. Divide Ss into six groups, and ask them to talk about the request of Talking on P62 and answer the following questions. Different students will give different answers. Make notes of some valua

11、ble information and make a conclusion at last. 1 What necessary instructions should new space travelers make. 2 Can you make a list of them. 2. Show Ss some beautiful pictures of the university and say, “ Now look at the pictures. How beautiful the Universe is. It is also full of mysteries. Have you

12、 ever dreamed of flying to the space like Yang Liwei to unlock the mysteries of the universe. If you could, what things should you pay attention to.”- 3 - 3. Encourage Ss to give as much information as possible. After the discussion, write down some key words and important expressions on the blackbo

13、ard to help Ss to have the sense of traveling in space . Conclusion: Before making a trip into space, wed better make full preparations, such as : about the space as possible; checking whether you have collecting as much information got the proper spacesuits or not; making sure of all the safety rul

14、es; not leaving - 4 - the spaceship alone unless the space guide tells you to; paying attention to recording some important time during the space traveling and so on. Step 3. Listening Workbook Purpose: To develop Ss listening ability. To gain some experience of traveling in space 1. Get Ss to look through the exercises before giving them the listening material. At the same time remind them of the new and key words: astronaut, experience, instruments, pilot, air force, rocket. 2. Ask Ss to look through the questions of the first part and listen to the tape carefully. Play the