Book8 Unit2 Cloning
Reading
内容： 教学设计及反思_ 设计人：马艳霞___
Book8 Unit2 Cloning
Period 1 Reading
设计人: 马艳霞
教学整体设计思路
在英语教学中“阅读理解能力”是学生从阅读中获取信息的能力以及对文章理解的速度和准确性的关键因素。培养学生的阅读能力是课文阅读教学的主要目标，同时还要注意培养学生在阅读过程中获取和处理信息的能力，让学生学会利用相关的英语知识去解读英语阅读材料。本节课是一节阅读课，设计过程如下：导入引出克隆这一话题--- 掌握段落大意（略读）---课文内容填空（精读）---重点知识点与句型---讨论---写作拓展。教材里本单元内容，语言技能和语言知识都是围绕“克隆”这一中心话题设计的。具体涉及“什么是克隆”, “克隆羊多利是如何诞生的”， “克隆的利与弊”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，为下一步进行议论文的写作教学做好准备。
目标聚焦
一、知识点
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。 二、能力点
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。 4、能利用上下文猜测生词词义 三、兴趣点2
1、利用已获取的信息发表自己对进行人类克隆问题的看法。
2、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。
（四）德育点
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。
学习流程
Before class (课前自主学习，合作探究) Vocabulary（词汇预习）
Preview the new words of this text.
clone commercial producer undertake arbitrary object forbid accumulate bother regulation resist unable argument reasonable obtain
cast down object to the media in favor of be bound to (do) from time to time 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。 In class
Step 1 Warming up
T: Yesterday I surfed the internet and found an interesting story , now let’s enjoy it together . (look at the slide ) S: Ok .
T: Look at the two ladies’ dialogue , do you think it is true ? S: No .
T: The lady’s husband was cloned . If someday it comes true , How will you feel ? S1: Exciting . S2: Terrible .
T: So today our topic is about cloning . First , let’s enjoy some slides about cloning .
Look at some pictures about natural clone and man-made clone , and then make students tell them .
【设计意图】通过幽默故事激发学生兴趣，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。 Step 2 Fast reading
Give students the main idea of each paragraph and let students find out the correct order .
A. Cloning has two major uses.
B. Cloning is a way of making an exact copy of another animal and plant. C. The effect of Dolly.
D. It is forbidden to clone human beings. E. The problems of Dolly Suggested answer : BAECD .
【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。 Step3 Careful reading
1. Read the first paragraph and fill in the blank :
It happens both in ______ and in_______. They can be cloned by ________ and _______.
(suggested answers: plants , animals , themselves , humans ) Then have a conclusion : natural clone man-made clone
Please find out the definition from the paragraph : Cloning is a way of making an exact copy of another animal and plant.
2. Read the second paragraph and answer the following two questions : (1) How many major uses do cloning have? Firstly, …commercial… Secondly, …research…
(2) When was the cloning of Dolly the sheep born? In 1996
3. Read the third paragraph and fill in the blank : as long as / shorter than / longer than
At first, the fact that Dolly developed ______ in a natural way was __________.
Later, the news _____she lived for six years, half the length of the life of the ______ one was __________.
Finally, the problem that occurred to the scientists was that a cloned animal lives
_____________ the original one.
4. Read the fourth paragraph and guess the meaning of this word “controversial ” :
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