人教版高中英语选修八-unit2-cloning-reading-教学课件-(共27页)-(1).ppt

1、Step1. RevisionReview some important new words and phrases in the passage. 1)It is a way of making an _(准确的准确的)copy of another animal or plant.2)It is a difficult task to _(从事从事).3)The determination and patience of the scientists_(取得好结果取得好结果).4)Dollys appearance had a great i_ on the public imaginat

2、ion.5)Some began to reform their legal systems and f_ research into human cloning.6)You _(欠欠) the lady an apology.exactundertakepaid offimpactforbadeowe Reading Do you enjoy watching TV series ?Step 2. Leading inMonkey KingMonkey KingIt is a way of making an exact copy of another animal or plant. Wh

3、at is cloning?discussionThere are 2 types of cloning.What are they?Natural cloneMan-made clone Look at these pictures and tell which ones are natural and which ones are man-made clones. 一株草莓依靠它沿地一株草莓依靠它沿地“爬走爬走”的匍匐茎的匍匐茎,一年内就能长出数百株草莓苗一年内就能长出数百株草莓苗Dolly?Match the main idea of each part.Cloning became c

4、ontroversial.The definition of cloningProblems of Dolly.Two major uses of cloning.Para 1. Para 2.Para 3.Para 4-5. I.Fast-readingstep3. ReadingII.Careful readingWhich statement is NOT true ?A. Cloning means making a copy of an animal or a plant.B. Twins that look exactly the same are originally from

5、the same egg.C. Clone can be from both natural clone and man-made clone . D. Natural clones happen in animals as well as in plants.Para 1Para 2What are the advantages of cloning?Medical cloning could_ illnesses Cloning can produce_quantities of plants.Cloning plants can be valuable for research on _

6、 . curecommercialnew plant speciesDolly seened to develop _at first.Then Dolly become _ill.Dollys illnesses were mor _to a much older animal.Dolly lived _ than the original sheep.What are the problems of Dolly?appropriateshorternormallyseriouslyPara 3True or false:1.Cloning has been used to cure ser

7、ious illnesses.2.People feared that Cloned Hitlers would do harm to the world.3.All the research into human beings will be forbidden.4.Some countries will use cloning in a wise way.Para 4-5III.Intensive-reading1.The word “straightforward”(P2) means _. A. uncomplicated B. honest C. frank D. difficult

8、2.Find out the sentence which has the same meaning as the following one in the passage. In an unfortunate way , the mice and Dolly sheep had no choice but to die young. No one imagined that this would happen and so no one could prevent it.3.Translate the following sentence into Chinese. Newpapers wr

9、ote of evil leaders hoping to clone themselves to attain their ambitions. A. Positive B. Negative C.not clear Sadly the same arbitrary fate affected other species, such as cloned mice.报纸报道说，有些邪恶头目希望克隆自己以现他们的野心。报纸报道说，有些邪恶头目希望克隆自己以现他们的野心。Step 4. Listening Listen to the tape and complete the following

10、sentences.1.The fact is _ these are both examples of natural clones.2.But at last the determination and patience of the scientists _ in 1996.3.The fact _ she seemed to develop normally was very encouraging.4.On the other hand, Dollys appearance raised a storm of objections and had a great _ on the m

11、edia and public imagination.5.Some began to reform their legal systems and _ research into human cloning.thatpaid offthatimpactforbadeStep5: Quiz（当堂检测）（当堂检测）1.Words and expressions1)自然克隆自然克隆2)得到回报得到回报3)自然发展自然发展4)产生巨大影响产生巨大影响2.sentences1)多莉羊的出现引起了一阵强烈的反对。多莉羊的出现引起了一阵强烈的反对。2)有些政府开始改革司法制度，禁止克隆人的研究。有些政府开

12、始改革司法制度，禁止克隆人的研究。natural clonespaid offdevelop normallyhad a great impact onDollys appearance raised a storm of objectionsSome began to reform their legal systems and forbade research into human cloning. As we approach the 21st century, it is clearer than ever that science and technology are changin

13、g the way we live and work. The breakthroughs are helping to reveal the mysteries of life, holding out new hope for lifesaving cures to some of our most dreaded diseases. In 1997, the great news shocked the whole world that the British scientists created a lamb, named Dolly from a single cell. The c

14、ell had been taken from an adult sheep, which marks the first time an adult animal had been successfully cloned. But it soon caused worldwide concern. Cloning is especially controversial because it raises the prospect of making humans genetically identical to an existing man or woman. Some people cl

15、aim attempting to use these cloning techniques to actually clone a human being, which is untested and unsafe and morally unacceptable. How to look upon this new technique? When it comes to a discovery like cloning, we must be cautious with our words and actions. First, great thanks should be given t

16、o its inventors. Meanwhile, great efforts should be made to place this technique under strict control. Especially we should adopt a document against human cloning since past experience tells us a new invention may cause troubles if it is misused.1)The word “dreaded” in the first paragraph means_. A.

17、popularB.worldwideC.fearfulD.common2)Find out the sentence which has the same meaning as the following one. When cloning is involved, we must pay attention to what we do and say. 3)Translate the underlined sentence into Chinese. When it comes to a discovery like cloning, we must be cautious with our

18、 words and actions.细胞从一个成年羊身上提取，这标志着第一次成功地克隆了一只成年动物。细胞从一个成年羊身上提取，这标志着第一次成功地克隆了一只成年动物。step6. ConclusionWhat have you learned today?Homework Easy: Learn the new words and phrases by heart. Medium: Retell the passage. Hard: Have you ever seen the cartoon Big big wolf and pleant goat? Look at the picture and write a short passage about your idea.