教案The Return of the Dinosaurs.doc

Book8 Unit 2 THE RETURN OF THE DINOSAURS? 编制：张雪荣 教学目标：Integrating skills : Readying , understanding and expressing by writing Target language 目标语言重点词汇：strike initial vain resist drawback merely decoration unable feather turkey claw adore hatch reasonable 重点短语：from time to time, bring back to life, pay off, in vain重点句子：1.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.I suggest that medical cloning is very important of curing serious illnesses that at present have no cure.3.The advantage is that if there is a new illness some of these animals may die, but others will survive and pass on the ability to resist that disease to the next generation.4.The great drawback to cloning a group of animals is that they would all have the same arrangement of genes and so might die of the same illness.2. Ability goals能力目标 Activate the students to show their opinions about the cloning the extinct animals.Enable the students to write an article based on ideas.3. Learning ability goals学能目标Help the students learn how to organize a passage and how to write a short composition of this kind .Emotional target情感目标：Inspire the students interest of study by learning this one and the determination of solving the difficult problems. 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.Teaching methods教学方法Task-based teaching method.Teaching aids教学准备A computer and a projector.Teaching procedures & ways教学过程与方式 Step 1Review 1.我们的爱好不同。（differ from ）Our tastes differ from each other.2. 他强烈反对被人当孩子一样对待。(object; treat)He strongly objects to being treated like a child.3.她为新变化承担全部责任。（undertake ；responsibility）She undertook full responsibility for the new changes.4.经理说的话使他沮丧。（cast down）He was cast down by what his manager said.Use the words or phrases that your learned in reading I to translate the following sentencesFor this review, I want to make the students review the words or phrases that we have learned in reading I and combine the daily life words. And most of them are just 18, so I design No.3 to raise their awareness of duty as a beginning adult.Step 2 Lead-in Show the students some pictures and a movie Jurassic Park to raise the students interest. After watching the movie, I give the students the question: Do you like live with dinosaurs? If students say that they would like with the dinosaurs. Then I can lead in the text . Or I can mention another word oil or gasoline to lead in the dinosaurs body providing them to us to lead in the text.Now lets go into the text.Step3 readingI. Read the title and the whole text and fill in the blanks . 1.Why does the writer use the ?(question mark) in the title? Because he doubts whether we can _ the dinosaurs. Can you think of other sentences to replace the title ?Choose the proper answers.A.Can we clone the dinosaurs? B.Can we bring back the dinosaurs to life?II.Read the first paragraph carefully to answer the following questions.1.Why does the text mention the movie Jurassic Park ?Choose the best answer. A.It is just the film that makes people feel fearful and excited. B. It aims to introduce the cloning of the extinct topic.2.Why does the text list the years from 1950s to 2005 ? 1) They are not the only ones.2)We are _ from being able to clone extinct animals.3) Scientists are still _ cloning mammals.4)Cloning is a new science.III.Read the second paragraph carefully to answer the following questions.1.Every now and then , people imagine that the extinct animals such as dinosaurs can likely be cloned.(Find a sentence in the text to replace this one within 30 words)2.If we want to clone extinct animals , what are the limits?(write out the three aspects with less than 30 words)3.The great drawback to cloning a group of animals is that they would all have the same arrangement of genes and so might die of the same illness. （Translate the sentence into Chinese.）4.What can you infer (推测)from the sentenceThe great drawback to cloning a group of animals is that they would all have the same arrangement of genes and so might die of the same illness. Then none of them would be left to continue the species. ？Choose the best answer .A. Not all of them can survive at last. B. We cannot clone the dinosaurs successfully in the end if we dont change the arrangement of their genes.IV.Sum up Now what conclusions can you get after reading the text?For this step , I want to strengthen the students comprehension about the text step by step. For the title, in fact it is an indicate that we can not clone the extinct dinosaurs or impossible for us to clone the dinosaurs successfully. The author doubts whether we can clone the dinosaurs . Because the answer type questions are too hard for the students so I change them into filling-blanks to low the difficulty. The second multiple choice question . I want to make the students know how to use the synonym phrases to make the writing colorful and rich. As for the first paragraph questions , my aim is to let the function of the film Jurassic Park and learn to find out the years which imply the clones history is short and a new science to go. The substitute question and translations are for training the students skill to find the clues in the text and the comprehension about the sentences of the text. And make sure that the students can learn how to infer according to the clues which given in the context.At last , the students can get the summary about this text as following :1.Now what conclusions can you get after reading the text?The first paragraph:1)It is a new science. 2)a long way to go3)We succeeded in cloning some animals.The second paragraph: There are 3 conditions to clone the extinct animals. 1.perfect DNA 2. Enough diversity 3.a suitable habitatThe third paragraph: Time limit :no longer than 10,000 years ago but dinosaurs died of more than 65,000,000 years ago.So it is just a dream now.Why did I usenow? Because I think that perhaps in the future the scientists can solve the difficulty to clone the extinct animals without the limit of the time. And I want to encourage the students to study hard to become a great scientist to settle this problem and let them challenge themselves to study hard for the future.Step4 language points1.strike. into ones heart 使.刻骨铭心eg.Wenchuan earthquake_.(使我们永远记住自然对我们的伤害。)2.in vain 白费力气；枉费心机eg.You are _ to study English without working hard.想学好英语不努力简直是枉费心机。3.bring sb/sth back to life使复生，是恢复元气eg.Self-confidence makes you _自信使你精神焕发。思维拓展bring sb/sth to life使更有趣，更生动eg. Using multi-media _.使用多媒体使课更生动有趣。4.Difficult sentences in the text（Translate the sentence into Chinese.）1. 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. The advantage is that if there is a new illness some of these animals may die, but others will survive and pass on the ability to resist that disease to the next generation.As for step4 I want the students to master the usage of the phrases by doing exercises. Especially the students can to master the usage of the phrases or sentences through the familiar things or examples . Step5 Show your ideasNow please write down on your paper which extinct animals described below (which died out less than 10,000 years ago )are worth restoring by means of cloning . Choose one animal from the table below and use the information to help you argue why this animal should be restored to the earth.(less than 40 words) You can refer to page17.Step6 Homewo