高中英语Unit2Cloning核心要点回扣新人教版选修8

Unit 2 Cloning
Ⅰ.重点单词
1．vi。

不同，相异→adj.不同的，有差别的→n．区别,差异
2．vi.反对，不赞成→n．不赞成，反对，异议
3．vt。

禁止,不准→（过去式）→（过去分词)
4．vi。

退休，离开→adj。

退休后，离职后→n．退休
【答案】1。

differ；different；difference 2.object；objection 3。

forbid；forbad/forbade；forbidden 4．retire；retired；retirement
Ⅱ.重点短语
1.错误!
2.错误!
3。

错误!
【答案】1。

off;for；for；back 2.of；in;for 3.to；it；to
Ⅲ。

重点句式
1．Cloning plants is straightforward while（然而)cloning animals is very complicated。

2．Then came（然后传来了）the disturbing news that Dolly had become seriously ill。

3．The advantage is that(优势在于）if there is a new illness some of these animals may die，but others will survive and pass on the ability to resist that disease to the next generation.
Ⅳ。

概要写作
阅读P15教材课文，根据下列提示词汇写一篇60词左右的概要。

【参考范文】
People have a dream to clone fierce and extinct animals。

But in fact we are a long way from being able to clone extinct animals。

Scientists are still experimenting with cloning mammals。

That's because the cloning of mammals is still a new science.Based on what we know now，it is either impossible or unsuitable to clone animals that have been extinct longer than 10，000 years。

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