Using LanguageⅡ优秀公开课教案

Unit 2 Cloning -- using language

I．教学内容分析

本单元的中心话题是“克隆”，涉及克隆哺乳动物、克隆的历史和是否能够克隆已经绝种的动物所引起的争议等话题。Using Language部分中包括了读、讨论和写、听三个部分的内容，通过学习“恐龙回归”的阅读材料，了解是否能克隆已经绝种的动物和讨论哪一种动物是最值得克隆及其理由，然后写成一份报告。听说部分是听一段关于克隆是否对动物残忍的对话并进行讨论，该部分可以激发学生的想象力和语言运用能力。

II．教学重点和难点

1. 教学重点

(1)生词和短语；

(2)了解克隆的利弊及对克隆技术的反思；

2. 教学难点

(1) 了解克隆技术以及有关的争议；

(2) 学会发表评论和表达自己的看法；

(3) 学写有关表达观点的文章。

Period 4 Reading, discussing and writing (Using Language)

Teaching Goals: Ss are expected to learn more about cloning, and to think about the development of the cloning.

Teaching Procedures: Reading, discussing and writing (Using Language)

1. Leading-in Purpose: To lead Ss to the topic and arouse the Ss’ interest in reading. Ask Ss to discuss the following questions. (1) Do you like dinosaurs? Where have you seen them? Can you see them in our real life? Why? (2) Do you think it is possible to clone dinosaurs? Why? 2. Fast reading Purpose: To get a brief understanding of the text. Ask Ss to read the text and try to finish the following tasks.

①True or False question. ②Choose the best answer. 3. Intensive reading Purpose: To get Ss to grasp some details in the text. (1) Ask Ss to read the text carefully, discuss the following questions and then answer them in pairs.

①

Why shouldn’t you clone an extinct animal unless there is enough diversity in the group? ②

Why is it wrong to clone an extinct animal if it would have to live in a zoo? ③

Why can’t you clone the DNA of animals that have been extinct longer than 10,000 years?

④Why is it either impossible or unsuitable to clone extinct animals?

⑤Fill in the blanks. 4. Language point (1)Ask Ss to choose synonyms.

(2)Ask Ss to fill in the blanks with the words given.

5. Listening and speaking

(1)Ask Ss to listen to the tape and finish Ex1 of Listening and speaking on P17. (2)Listen to the tape again and complete the following form.

Mary’s ideas about cloning

Xiao Qing’s ideas about cloning

(1) ______ to animals (1) scientists are doing a ______ job (2) make them do ______things (2) may ____ back extinct animals (3) it is a “______ end”

(3) problems because it is a ______ science (4) clone born at age of “______”

(4) ________ need encouragement (5) ______ the species (5) it may provide ______ for illnesses

Suggested Answers:

(1) cruel

(2) unnatural

(3) dead

(4) mother

(5) weaken

(6) wonderful

(7) bring

(8) new

(9) scientists

(10) medicine