Unit 2 Cloning-using language 教学设计-农安实验中学 陈君一. 教材分析 本单元以Cloning为话题，旨在通过单元教学，使学生了解克隆技术的优缺点，学会表达和支持个人观点，能用所学的有关Cloning的词汇去表述自己对这一新技术的观点和看法。 Using Language中的Reading，Discussing and writing要求学生先读, 然后再完成三个任务型的作业，即 1.翻译并回答几个问题；2. 讨论几种已经灭绝的动物，并且讨论哪种动物应该被恢复到这个世界上，并且给出理由；3.writing部分留出模板，作为作业处理。 Listening and speaking 让学生根据所听到的内容挑出正确答案并列出文中人物观点，然后就文中两人观点进行讨论并给出自己观点。Teaching goals 教学目标Integrating skills ， writing and listening skills.1.Target language 目标语言a. 重点词汇clone，commercial，producer，undertake，arbitrary，object，forbid，accumulate，cast down，object to，the media，in favor ofb. 重点句子I support .because.I agree with.because.Your argument has convinced me because.Your ideas sound very encouraging to me.I cannot accept your argument because.No,I cant agree with .because. No,that is not reasonable because.2. Ability goals 能力目标 Activate the students to show their opinions about the cloning.Enable the students to write an article on this debate.3. Learning ability goals 学能目标Help the students learn how to organize a debate and how to write a short composition of the debate.Teaching important and difficult points 教学重难点 How to organize the debating materials.How to write a short composition of the debate.How to write a report.Teaching methods 教学方法Task-based teaching method.Teaching aids 教具A computer and a projector.Teaching procedures & ways 教学过程Step 1 Greeting and Lead-in （ 4 分钟）Play a video and a picture about Jurassic World to arise students interests, the-n raise the question: Is there a possibility that we can let dinosaurs return to the earth?通过播放电影片段和提问，激发学生对通过克隆技术复活恐龙的兴趣和好奇心，启发学生预测课文的内容，以便通过阅读验证自己的推测。 Step 2 Reading,discussing and writing （共 20 分钟）.read the article and finish three tasks （阅读文章完成3个任务）a. Translation1)The popularity of films such as Jurassic Park，in which a scientist clones several kinds of extinct dinosaurs， proves how the idea struck a mixture of fear and excitement into peoples hearts. 2)From time to time people suggest that extinct animals like dinosaurs, can possibly be brought back to life through cloning. 3)All efforts of cloning an animal will be in vain if there is not enough diversity in the group to overcome illnesses. 4).Diversity in a group means having animals with their genes arranged in different ways.b. Choose correct answers1) The film Jurassic Park is popular because _.A.people are interested in the subject of cloningB.all the actors are dinosaursC.it was directed by a scientist who clones dinosaursD.it proves very interesting2) Which of the following is TRUE? A.Mice were cloned in 1981.B.Dolly the sheep was the first cloned animal.C.The name of the cloned cow is “Bison”.D.China was successful in cloning mammals.3) The reasons why a group of cloned animals all die of the same illness do NOT include_ .A.they have the same arrangement of genesB.there isnt enough diversity in the group for it to overcome illnessesC.the illness is a new oneD.their arrangement of genes can not resist that new disease4) The writer of the text_ .A.is excited by the possibility of cloning fierce and extinct animalsB.believes that extinct animals can be brought back to life by cloningC.thinks it impossible or unsuitable to clone extinct animals like dinosaurs D.dreams of dinosaurs returning to the earthc. Answer the questions1) Why shouldnt 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 cant you clone the DNA of animals that have been extinct longer than 10,000 years?.discussion (分组讨论给出自己的观点及理由)Show four pictures and let students discuss which extinct animals are worth restoring by means of cloning.Write a short report giving your reasons to persuade other people.Lets 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.writing (Homework) （由于时间关系 留做作业）Step 3 Listening and speaking ( 14 分钟）.Listen to the tape and tick those that are true 1.Cloning will bring dead pets to life.2.There were 627 experiments before Dolly was successfully cloned.3.Cloning may help cure serious illnesses.4.Its a dead end.5.Dolly the sheep was “middle-aged”when she was born.6.So your grandmother would be able to start her life all over again and live much longer.Listen again and then fill in the chartRachels ideas about cloningXiao Qings ideas about cloning.speakingLet students discuss and give us their own opinions with following expressions.Thats a goo