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1、Book8 Unit2 Period 1 Reading内容简析本节课的内容是人民教育出版社出版的NSE高中教材选修8第二单元的Pre-reading, Reading, Comprehension 部分，本单元的话题是克隆。本节课是单元的阅读课，教材的本单元内容，语言技能和语言知识都是围绕“克隆”这一中心话题设计的。具体设涉及“什么是克隆”, “克隆羊多利是如何诞生的”， “克隆德利笔”等。教师可在充分利用教材资源的基础上，结合学生的实际情况设计教学活动，旨在帮助学生有效地掌握阅读技巧，形成有效地学习方法和阅读策略，同时了解说明文篇章结构和写作特点，为下一步进行说明文的写作教学做好准备。目标
2、聚焦一、知识目标1、初步理解、掌握克隆意为无性繁殖，克隆技术即为无性繁殖技术。学习课文中关于克隆这一新生物技术的有关知识，学习分析课文中的长难句子，初步感知课文中出现的的本单元要学的语法现象。2、利用已获取的信息发表自己对进行人类克隆问题的看法。3、克隆技术日新月异，在教授本单元时，需随时关注其发展的最新动态。二、技能目标1、能理解文章主旨大意，获取信息、处理信息、进行推理判断和表达的能力。 2、形成分析篇章结构的能力，提升逻辑思维能力3、学会增加语言的输出量，提高语言表达能力。三、策略目标1、通过图片和标题预测文章内容；运用略读和找读策略迅速获取信息,并能够精读文章获取信息和分析信息。 2、
3、能利用上下文猜测生词词义。（四）情感态度目标认识克隆人的危害对人类在伦理、道德、法律等方面造成的巨大影响，应给予抵制。方法运用1、整体教学法2、体裁教学法 3、导、读、练的教学模式 学习流程Before class (课前自主学习，合作探究)Task 1 Vocabulary（词汇预习）Preview the new words of this text.clone / commercial/ producer/ undertake/ arbitrary/ object/ forbid/ accumulate/ bother/ regulation/ resist/ unable/ argum
4、ent/ reasonable/ obtain/cast down/ object to/ the media/ in favor of/ be bound to (do)-/ from time to time/ bring back to/ pay off 【设计意图】通过预习词汇为下一步的阅读扫清生词障碍。Task 2 Warming up（热身）Please look at the pictures on Page10, and discuss which ones are natural clones and which ones are man-made. Explain how
5、they differ.【设计意图】通过图片激发学生兴趣，引出本单元的话题，要求学生通过讨论,了解两种不同的克隆：自然克隆与人工克隆，为后面的阅读做铺垫。Task 3 Pre-readingIn pairs discuss what you understand about cloning .Then list the questions you want to find out. Share your list with one another. 【设计意图】本部分要求学生提出有关克隆的问题，并列入表内，可以激发学生对克隆兴趣，为阅读做好认识上和知识上的准备，激发学生的想象力和判断力。Tas
6、k 4 Read the text and try to find out the difficult and charming sentences and then try to analyze or memorize them.【设计意图】通过让学生课前自己找出难句、典句并试着分析和欣赏，培养学生主动发现问题问题和解决问题的能力，同时为课上的研读环节作了充分的铺垫。In class（课上交流展示、研讨提升）Step 1 Check-up and lead in（展示预习成果和导入新课）1. Get two members of different groups to come to the
7、 Bb and check up their prevision tasks, one group to do the following task:Find the words or expressions for each of the following meanings from the text.A._ refuse, be againstB._ be made up of many partsC._ development or discoveryD._ order of doing somethingE._ buying or selling of goodsF._ the sa
8、me, preciseG._ prevent -fromH._ gain, getI. _ only; simplyJ._ use force againstK._ trouble, disturbL._ give up ones workThe other group is to report their prevision of the warming-up part.【设计意图】该环节的设计意图是检查学生对前两个课前预习任务的完成情况。2. Get the Ss to look at the pictures and the title of the reading passage an
9、d predict the content and then lead into the new lesson.【设计意图】通过看图片和标题对课文内容进行预测，培养学生预测阅读内容的能力。同时通过预测激起进一步探究的好奇心，顺理成章的引入新课。Step 2 Fast reading（速读）1. Read the passage quickly and decide the following statements about cloning, using skimming and scanning skills. 1) Cloning means making a copy of an ani
10、mal or a plant. ( )2) Gardeners can make a lot of money by cloning plants. ( )3) Cloning animals is as complicated as cloning plants. ( )4) Dolly the sheep was the first successful clone of a mammal. ( )5) Natural clones happen in animals as well as in plants. ( )【设计意图】读前部分提供的问题综合性强，难度较大，因此，用True or
11、 False的题目，检测学胜对克隆的了解。引导学生运用略读策略快速了解课文的主要内容，通过对课文主要信息的寻找，可以培养学生迅速搜索信息的能力。2. Then guide the students to conclude the main idea of each parts or they can match the topics with each paragraph:Para1: A. It is forbidden to clone human beings.Para2: B. The problems of Dolly.Para3: C. What is cloning?Para4:
12、D. The effect of Dolly.Para5: E. Cloning has two major uses【设计意图】让学生归纳每段段意，提供具体信息，旨在帮助学生把握课文要点，学会总结和归纳课文内容。让学生在完全掌握课文内容和结构的基础上，可以顺利进行下一步的研读。Step 3 Careful reading （细读）1. Read the passage carefully and choose the best answer for each question.1). The main idea of the passage is_ A. animal cloning is
13、very valuable and can benefit the world. B. animal cloning could be misused by bad people so it must be forbidden. C. animal cloning is well developed because Dolly the sheep was born. D. animal cloning raised arguments and scientists are not sure about its future.2). Which of the following statemen
14、ts about cloning is not true according to the passage? A. Cloning is something that has been developed quite recently. B. Twins that look exactly the same are originally from the same egg. C. Cloning is used by researchers to develop new plants. D. Animal cloning is much more difficult than plant cl
15、oning. 3). The cloning of Dolly the sheep succeeded because_ A. its easier to clone a sheep than other animals. B. the scientists were determined and worked hard with patience. C. the scientists were rewarded and got lots of money. D many other attempts to clone mammals failed.4). It can be inferred from the passage that a cloned animal_ A. usually lives as l
