内容正文:
单元目标速览
Section Ⅰ TOPIC TALK & LESSON 1
Step One: Pre-reading
1.Who is he?
He is Sun Wukong.
2.What is he doing?
He pulled out a handful of his own hair and blew on it. Each strand of hair turned into a fake monkey—exactly like Sun Wukong. That's cloning.
3.What is cloning?
Cloning is the process of making an exact copy of a plant or animal and developing it either naturally or artificially.
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Step Two: While-reading
Ⅰ.Read for the main idea
What's the main idea of the text?
The main idea of the text is whether we should clone animals or not.
Ⅱ.Read for the structure
Match the main idea with each paragraph.
Para. 1 A.The definition of cloning.
Para. 2 B.The first artificial cloning.
Para. 3 C.The potential benefits of cloning primates.
Para. 4 D.The first cloned primates.
Para. 5 E.The writer’s attitude towards cloning.
Para. 6 F.Moral concerns about cloning primates.
答案:Para. 1~6 ABDCFE
Ⅲ.Read for details
Read the passage carefully and choose the best answers.
1.Why did the author set two examples in Paragraph 1?
A.To show us what is natural cloning.
B.To tell us different types of cloning.
C.To explain how identical twins are produced.
D.To show us how to clone plants.
2.What does the cloning of Dolly and other animals indicate?
A.It is not possible to clone sheep.
B.Cloned animals live a shorter life.
C.Cloned animals are much healthier.
D.Not all animals can be cloned.
3.What can we infer from Paragraphs 4 and 5?
A.Cloning has won firm support from the public.
B.Most people are concerned about animal cloning.
C.Cloning should be forbidden because of moral concerns.
D.People show different attitudes towards cloning.
4.What is the author's attitude towards cloning?
A.Supportive. B.Opposed.
C.Uncertain. D.Doubtful.
答案:1~4 ABDC
Step Three:Post-reading
Ⅰ.品质升华
1.Why do researchers insist that the science of cloning should be further explored and advanced? (Critical Thinking 批判性思维)
Although cloning continues to be an issue that causes a great