高中英語unit2cloning教學(xué)設(shè)計1新人教版選修8-資料下載頁
【導(dǎo)讀】Strawberry，differ，exact，straightforward，breakthrough，disturbing，cast，altogether，objection，media，moral，ceiling，shortly，retire，identical，nucleus，gene，somatic，embryo，fate，impact，extinct，popularity，Jurassic，bison，calf，DNA，habitat，restore，Auroch，GreatAuk，Quagga. castdown，objectto，themedia，infavourof，boundto?clone，mercial，producer，undertake，arbitrary，object，forbid，accumulatebother，regulation，resist，unable，argument，reasonable，支持個人觀點(diǎn)，能用所學(xué)的有關(guān)Cloning的詞匯去表述自己對這一新技術(shù)的觀點(diǎn)和看法。WarmingUp提供了四幅有關(guān)Dollythesheep(多莉羊)Astrawberryplant(草。Listening是關(guān)于人類克隆的聽力材料，難度中等。語言要得體，鍛煉語段表達(dá)能力。Pre-reading是Reading的熱身活動。它要求采用與同學(xué)討論交流的方式談?wù)撚嘘P(guān)?？寺〉南嚓P(guān)知識。Comprehending第一題所給出的表格讓學(xué)生根據(jù)課文內(nèi)容列舉克隆技術(shù)的優(yōu)缺點(diǎn)。第三題要求學(xué)生用自己的語言闡述對克。隆技術(shù)的觀點(diǎn)并給出理由。andexpressions是根據(jù)語境在運(yùn)用中掌握詞匯。成四個任務(wù)型的作業(yè)。的動物，并且討論哪種動物應(yīng)該被恢復(fù)到這個世界上，并且給出理由。speaking讓學(xué)生根據(jù)所聽到的內(nèi)容選擇并列出文中人物觀點(diǎn)。從教材份量來說，可將WarmingUp和Reading整合在一起，設(shè)計成一。將UsingLanguage與Workbook中的TALKING和SPEAKINGTASK結(jié)合在一起，設(shè)
【正文】 as to what dangers are involved in having copies of people. I also think this technology should not be used until success. S5: I agree that we should develop cloning. I’ m not afraid of cloning Hitlers or excited to clone Einsteins. I would say the time and the environment produced Hitler, not his DNA. So you do not need DNA from Hitler to produce a Hitler. In fact, there are Nazis already present. We should make use of cloning to benefit future generations. You can imagine that how happy the people are if they can recover from the serious illness or get back the son who has just lost his life in an accident by cloning. T: Good job! Yes, if we our human beings use the scientific technology properly it can bring many advantages to us! S: Why did Dolly’ s appearance raise a storm of objections and have a great impact on the media and public imagination? T: Because nothing really prepared the world for the 1997 announcement that a group of Scottish scientists had created a cloned sheep named Dolly. Many folks believe that within the next decade, we will hear a more shocking announcement of the first cloned human. Scientists in South Korea have already created human embryonic stem cells through cloning. Until now, the idea of human cloning has only been possible through movie magic, but the natural progression of science is making human cloning a true possibility. We’ ve cloned sheep, mice and cows, so why not humans? Some countries have set up laws banning cloning, but it is still legal in many countries. Imagine using a piece of your greatgrandmother. This opens the door to many ethical problems, but it’ s a door that could soon be opened. S: So what happens next? T: Whatever the reasons, the new cloning technologies have sparked many ethical debates among scientists, politicians and the general public. Several governments have considered or enacted legislation to slow down, limit or ban cloning experiments outright. It is clear that cloning will be a part of our lives in the future, but the course of this technology has yet to be determined. Cloning could cause birth defects, but it’ s not going to change society. In the absence of any legislation or regulation, cloning attempts will quietly continue. Eventually, cloning will succeed (if it hasn’ t happened already), and humankind will have taken another step down the road of biological engineering. You should study hard today, and you will be able to face this difficult problem and know how to deal with it. Explanation T: Now let’ s deal with some language points. Turn to page 11. Let’ s look at the sentence: It is a way of making an exact copy of another animal and plant. 全句漢語意思 :它是一種精確復(fù)制另一個動物或植物的方式。 Here a way of means a manner of 一種??的方式。 T: Turn to page 12. Look at the 8th line. Dolly’ s appearance raised a storm of objections and had a great impact on the media and public imagination. In this sentence, raise means lead. (引起 /導(dǎo)致 )。全句意思是：多利的出現(xiàn)引起一場反對風(fēng)暴，并且對媒體和公眾思想產(chǎn)生了很大的沖擊。 T: Turn to page 12. Look at the sentence: However, scientists still wonder whether cloning will help or harm us and where it is leading us. “ whether cloning will help or harm us” , “ where it is leading us” is the objects of the word “ wonder” 全句意思是：科學(xué)家一直致力于研究克隆到底會有助于我們還是會傷害我們，它們將我們引向何方。 Step V Homework Ask the students to do the following. 1. Complete the exercises on page 13. 2. Recite the key sentences in the text. 3. What is Cloning? You might not believe it, but there are human clones among us right now. Have you ever wished you could have a clone of yourself to do homework while you hit the skate park or went out with your friends? Imagine if you could really do that. Where would you start?
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