优秀教案unit 2 book 8 clone.doc

Opportunity seldom knocks twice.Unit Two Book 8 Cloning: where is it leading us?山东省高密市康成中学 李玉梅、Teaching aims and demandsGet some ideas about cloning and the procedure of How Dolly was producedGrasp some important words and expressions, To study The Appositive (clause) Help the students to form the right idea about cloning.2、Key and difficult pointsImportant words and phrases：pay off, cast down, object to, in favour of, be bound toTo study The Appositive (clause)3、Teaching methodsSkimming, scanning, asking and answering questions, discussion4、Teaching proceduresStep 1 Warming up Showing some clone pictures, we can have a introduction of clone and lead into the topic of the material. And make sure the students are clear with the natural clones or man-made clone.Step 2 Fast readingLet the students glance the reading materail quickly and match the paragraph and the topic so that they can have a general idea of the text.Paragraph 1 A：How the scientists successfully cloned Dolly the sheep.Paragraph 2 B：Different governments have different attitudes to cloning. Paragraph 3 C：What is cloning?Paragraph 4 D : The influence of Dolly the sheep Paragraph 5 E：The progress of the first successful clone, Dolly the sheep.Step 3 Deep readingGive the students enough time to read the text in detail and find out the answer to the excersises, which can help the students comprehend the material more deeply.1. What does the word “cutting” mean in the first paragraph? A. Pieces of branches cut off a plant B. Leaves of a plant. C. Roots cut off a plant. D. The stem of a plant2. What is the main problem with Dolly the sheep? A. She seemed to develop normally. B. Dolly successfully produced a lamb in a natural birth. C. She had serious illnesses much too early. D. The whole scientific world followed the progress of her.3. Why did Dolly become controversial? A. Because people may use cloning to cure serious illness. B. Because its appearance caused moral questions. C. Because newspapers had stories of evil leaders. D. Because there was a storm of objections. 4. From the last paragraph, we can infer_. A. All the governments will forbid research into human cloning.B. Some governments will permit research into human cloning with the aim of medical aid.C. Cloned human beings will be produced in some countries.D. Cloning will come to an end because of so many problems.5. Fill in the blanks according to Paragraph 2. -This is how Dolly was produced.1._ cell2._3. egg cell4._ cell 5_6. Joined nucleus B and egg cell A7._8. female sheep C 9._Step 4. Find the sentence that can replace the following one.It made cloning scientists discouraged that Dolly suffered from the illnesses which often happened to a much older animal. _Translate it into Chinese._ Step 5 listeningListen to the recorder and try to underline the useful phrases1. be identical in_ be identical to_2. be rewarded with_ 3.很沮丧地干某事_4适合于_ 5On the other hand_6. raise a storm of objections_ 7.对有巨大影响_8. 打开眼界，使看到_ 9. 道德问题_10.搜集的证据_ Step 6:Grammar- The Appositive Clause (同位语从句)Then came the disturbing news that Dolly had become seriously ill.(Chinese-Translation)_Pick out the other appositive clause from Paragraph Three. _Step 7: Consolidation1. There is a new problem involved in the popularity of private cars_ road conditions need_.(2003.shanghai)A that; to be improved B which; to be improvedC where; improving D when; improving2. Information has been put forward_ more middle school graduates will be admitted into universities.(2001.shanghai)A while B that C when D as3. Along with the letter was his promise_ he would visit me this coming Christmas. A which B that C what D whether4. It was the order that all the soldiers _ to the front. A should send B must be sent C be sent D must go5. Word came _ our football team won the match , which delighted us.A what B where C as D that6. Twins _sex and appearance are produced from the same original egg.A identical to B are identical in C are identical to D identical in7. Its valuable _ research _new plant species. A for; into B for; of C of; into D of; on8. The procedure is hard _. A to be undertaken B to undertake C undertaking D to be undertaking9. At last the scientists were _in 1996_ a breakthrough. A awarded; with B rewarded; with C rewarded; by D awarded; by10. Cloning scientists _ to find that Dollys illnesses were more appropriate_ a much older animal. A cast