Using LanguageⅡ获奖说课稿

选修8 Unit2Using LanguageⅡ

*教案

Teaching aims（教学目标）: 1.语言知识目标：To learn about the procedure of animal cloning and the life of Dolly the sheep 2.语言能力目标: To develop Ss’some basic reading skills. 3.情感态度目标: To arouse Ss’interest in learning about cloning. 教学重点：Help the Ss to know how to describe cloning and how to catch the details of the text. 教学难点：Activate the Ss to show their opinions about the cloning and enable the Ss to write and article on this debate. Step 1 Leading－in Get students?to?discuss?what?the?passage?talks?about?and?how they?understand?the?meaning of?the?title. Ask?Ss to?talk?about?the?following?questions. (1)What?is?cloning (2)How?is?a?clone?produced (3)What’s?the?function?of?cloning? (4)What’s?the?effect?of?the?cloning?

Step 2 Fast reading Listen to the tape and get the main idea of each paragraph. 1.Cloning is ______________________________. 2.Cloning has ____________ uses. 3.The _________ of Dolly. 4.The ________ of Dolly. 5.It is __________ to clone human beings. Step 2 Careful reading 1. Ask Ss to read the text carefully and then decide which statements are true or false. (1) When a gardener takes cuttings from growing plants to make new ones, we say the new ones are natural cloning. ( ) (2) Cloning animals is as complicated as cloning plants. ( ) (3) Dolly the sheep was the first successful clone of a mammal. ( ) (4) Scientists were very excited to find that Dolly’s illnesses were more appropriate to a much older animal. ( ) (5) People’s opinions on cloning were different. ( )

(6) Some countries like China didn’t stop human cloning research. ( ) (7) A cloned animal usually dies earlier than the original one. ( ) (8) Evil leaders can clone themselves to abtain their ambitions. ( ) 2. Ask Ss to choose the right answer according to the text. (1) Which statement about Dolly the sheep is true? ( ) A. She looked exactly like the sheep that provides the egg. B. She was the exact copy of the sheep that provides the nucleus. C. She looked like the sheep that gave birth to it.

D. She had the characteristics of all three sheep. (2) Choose the right order of the events given during the cloning procedure of Dolly the sheep. ( ) a. Female sheep C bears the embryo b. The nucleus from sheep B and egg cell from sheep A join together. c. Female sheep B provides a somatic cell whose nucleus is taken out of d. The cell break up and grows into an embryo e. Female sheep A provides an egg cell whose nucleus is removed from. f. A lamb called Dolly is cloned. A. e, c, a, b, d, f B. e, a, c, d, f, b C. e, c, b, d ,a, f D. e, b, c, d, a, f (3) It can be inferred from the passage that a cloned animal_______. A. usually lives as long as the donor(捐赠者)one B. usually lives longer than the original one C. may die younger than the donor one D. is usually as healthy as the original one (4) Which of the following is not an advantage of cloning? ( ) A. Cloning can be used for medical purposes. B. Large quantities of food can be produced by cloning. C. Cloning can help keep animals from becoming extinct. D. Famous persons who have passed away can be cloned. (5) What is people’s fear about human cloning? Which of the following is wrong? ( )

A. Cloned Hitlers would do harm to the world. B. Cloned people may be killed at will for medical aid. C. A woman would have difficulty recognizing her real husband. D. Men will die out because a woman can give birth to a baby without a husband. (6) We can infer from the last three paragraphs that_______. A. the normal development of Dolly had no effect on the cloning of other species. B. Dolly’s serious disease and final death disturbed the whole world. C. Dolly successfully cloned a new lamb with the help of cloning scientists. D. there were arguments about animal cloning and concerns about cloning’s future.

3.Summerize the advantages and disadvantages of cloning. Advantages a.Cloning plants can produce ___________ ____________ of plants . b.Cloning plants can be useful for research on new _____ species. c.Medical cloning could produce ______ for serious illnesses. Disadvantages a.Animal clones may develop the ________ of older animals. b.Animal clones may _____younger than the donor animals. c.Evil leaders may want to ______ themselves to attain their ambitions. d.Religious leaders raised _______ questions about human cloning.