Using LanguageⅡ教学实录及点评

Unit 2 Cloning (Using language) Questions 1.Do you know anything about dinosaurs? 2.Have you ever seen the film Jurassic Park?

The return of the dinosaurs ? Teaching aims教学目标

1. Understand the passage and know more about the cloning of dinosaurs and the problem.（理解文章，了解恐龙的克隆及存在的问题。）

2. Use their own words to explain the reason why the dinosaurs can’t be cloned successful and (用自己的话来解释恐龙不能被成功克隆的原因) 3. List the reasons to bring one of the four extinct animals back to life (在四种灭绝动物选出最应该被克隆的动物并且列出原因) 自学目标1 understand the passage 自学建议：1. 获取文章大致信息

2. 第一遍快读了解故事大意

3. 第二遍细读获取细节信息

自学禁忌：1. 一口气从头一字一句读到尾

，

2. 见到生词就查字典

自学时间：5分钟Task 1What’s the main idea of each paragraph?

Para1 explain the impossibility of cloning

dinosaurs Para2 conclude that it’s just a dream

Para3 introduce the topic of the passagefinsishRead the text, then tell whether the following sentences are true or false. ( Students can discuss in pairs. ) Scientists are still experimenting with cloning mammals because they think it can make money. The animals that have disappeared from the earth, like dinosaurs, can be brought back to life through cloning. If we can clone any extinct animals, we should let them live in a zoo.Task 2True or False Give some reasons why it is either impossible or unsuitable to clone dinosaurs.Reason 1:Reason 2:Reason 3:DNADiversityHabitatTask3自学目标2 use your own words to explain the reasons why dinosaurs can’t be cloned Great Auk (1844) Auroch (1627) Dodo bird (1755) Quagga (1883) These animals are extinct ones. Which one should be brought back to life? And why? Discuss with your partner.

The example on the textbook might help you.DiscussionPK 讨论建议: 1.通读四种已灭绝动物的信息。

2.挑选出自己认为最应该克隆的动物。

3.仔细阅读该动物的相关信息，展开大胆联想，给出原因来阐述为什么这种动物最适合被克隆，能够带来什么样的好处。

4.互相比较选择的动物，陈述各自的观点。

讨论时间：5分钟

自学目标3 discuss and list the reasons for which extinct animal should be cloned Great Auk (1844) Aurochs (1627) Dodo bird (1755) Quagga (1883)DiscussionPK030″60″120″90″FinishWritingLet’s bring the back to life is the most suitable animal to be brought back to life. Here are the reasons：Firstly,Secondly,Finally,So I think would be the best choice to be brought back to life.WritingLet’s bring the great auk back to life The great auk is the most suitable animal to be brought back to life. Here are the reasons：

Firstly, it’s feathers don’t absorb water, so it’s useful for protecting clothes from water. Secondly, farmers can keep it as chicken to earn money. Finally, it became extinct recently, therefore its DNA is still in good condition. So I think the great auk would be the best choice to be brought back to life.WritingLet’s bring the dodo back to life

The dodo is the most suitable animal to be brought back to life. Here are the reasons：

Firstly, it’s friendly and not harmful, so we can keep it as pet for children. Secondly, its large eggs and tasty meat could be developed for food. Finally, farmers can sell its feathers as decoration. So I think the dodo would be the best choice to be brought back to life.WritingLet’s bring the aurochs back to life

The Aurochs is the most suitable animal to be brought back to life. Here are the reasons：

Firstly, it has thick hair, and we can use its hair to make clothes. Secondly, its long horns can be used for decoration. Finally, it’s very large and strong, therefore we can make it help farmers plough the field. So I think the aurochs would be the best choice to be brought back to life.WritingLet’s bring the quagga back to life

The quagga is the most suitable animal to be brought back to life. Here are the reasons：

Firstly, it has beautiful skin as a zebra, so we can use its skin as decoration. Secondly, the meat is very tasty, and we will have another delicious dish. Finally, it just became extinct in 1883, therefore we can easily get its perfect DNA. So I think the quagga would be the best choice to be brought back to life. 教学目标再现

1. Understand the passage and know more about the cloning of dinosaurs and the problem.（理解文章，了解恐龙的克隆及存在的问题。）

2. Use their own words to explain the reason why the dinosaurs can’t be cloned successful and (用自己的话来解释恐龙不能被成功克隆的原因) 3. List the reasons to bring one of the four extinct animals back to life (在四种灭绝动物选出最应该被克隆的动物并且列出原因)summaryProtecting the endangered animals means protecting ourselves. Surf the net and find more about the clone of extinct animals. 2. Finish exercises on page13. Thank you!