Look at the pictures and discuss which ones

Look at the pictures and discuss which ones are natural clones and which ones are man-made clones.

She was reported on TV and major papers

Cloning , where are you leading us? . . .

First reading 1. What is cloning? It is a way of making an exact copy of another animal or plant.

2. What’s the style of the passage ? A. narrative (记叙文) B. argumentative(议论文) C. explanatory(说明文)

3. Can you put the topic sentences into paragraphs that they belong to? (Attention: one of them belongs to nowhere. ) ① Dolly’s problem and death ②What is cloning? ③Two major uses of cloning ④ Arguments brought by Dolly ⑤The procedure for human cloning ⑥ The effect of Dolly

Para 1 ① Dolly’s problem and death Para 2 ②What is cloning? Para 3 ③ Two major uses of cloning Para 4 ④ Arguments brought by Dolly Para 5 ⑤The procedure for human clonin ⑥ The effect of Dolly

Second reading 1. What are the two major uses of cloning ? The first use is to produce commercial quantities of plants ; the second one is to research on new plant species and medical research on animals.

2. Is cloning plants the same with cloning animals ? A. Yes , they are the same with each other. B. No, cloning plants is straightforward but cloning animals is more complicated.

3. Give a right order of cloning Dolly ‘s procedure ①The cell divides and grows into an embryo. ②The lamb is the clone of the donated cell from Sheep B. ③ A nucleus is taken out of Sheep B’s somatic cell. ④The embryo is put into female Sheep C. ⑤The egg cell from Sheep A and the nucleus from Sheep B are joined using electricity. ⑥ The egg cell from Sheep A is removed a nucleus. ⑥ ____ ③ ____ ⑤ _____ ① ____ ④ ___ ② The order: ____

Third reading 1. True or False questions. ①Dolly the sheep was the first successful clone of a mammal. T ②Some countries like China didn’t stop human cloning research. F ③a cloned animal usually dies earlier than the original one. T ④Evil leaders can clone themselves to abtain their ambitions. F

2. What is the writer’s attitude toward cloning in this passage? A. The writer is against cloning. B. The writer is in favor of cloning. C. The writer does not state any personal opinion about cloning.

3. What’s the affect of cloning ? On the one hand , it opened everybody’s possibility eyes to the ______of using cloning to serious illnesses cure________and even produce human beings _______; On the other hand , Its objections appearance raised a storm of ______ media and had a great impact on the _______ imagination public_____.

4. What are the advantages and disadvantages of cloning ? advantages commercial 1. Cloning plants can produce ____________ quantities of plants. 2. Cloning plants can be useful for research on new _____ plant species. 3. Medical cloning could produce ______ cures for serious illnesses.

disadvantages 1. Animal clones may develop the i____ llnesses of older animals. 2. Animal clones may _____younger than the die donor animals. 3. Evil leaders may want to clone ______ themselves to attain their ambitions. 4. Religious leaders raised _______ moral questions about human cloning.

5. What can we learn from the passage ? two As one coin has two sides, everything has _____ bad aspects(方面). Cloning has both ______and _____ good aspects. ________, On the one hand if cloning is used in a correct way , it can bring lots of convenience to us. ________, On the other hand if cloning is used in an evil way , it can cause much trouble. _____, Therefore we should use cloning in a correct way.

n o i s s u c s i D Let’s make a discussion about whether cloning should be allowed in China ? Give your reasons.

Possible sentence patterns: (1)People’s views vary from person to person. (2)… hold the view that…. /…in favor of … (3)…object to the view that…/ are against… (4)I can’t agree with …because…

Consolidation The passage mainly tells us what c______ loning is , the a_____ rguments raised by Dolly the sheep and scientists are not sure about its f_____. uture

教师寄语 One coin has two sides and we should treat things in a wise way.

Write a short passage about what you discussed in class.