2017-2018学年高中英语选修8浙江专版教师用书：Unit 2

单元尾
核心要点回扣
Ⅰ.重点单词
1． v i .不同，相异→ adj .不同的，有差别的→ n ．区别，差异
2． v i .反对，不赞成→ n ．不赞成，反对，异议 3． v t .禁止，不准→ (过去式)→ (过去分词) 4． v i .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.⎩⎨⎧pay 得到好结果，取得成功，偿清
pay sb. sth. 付钱给某人作为……的费用pay sth. 为……付费/吃苦头/受惩罚pay 还钱；报复
2.⎩⎪⎨⎪⎧in favour 赞成，支持，有利于 sb.'s favour 对某人有利
do sb.a favour ＝do a favour for sb. 给某人帮忙owe sb.a favour 欠某人情ask sb. a favour ＝ask a favour of sb. 向某人求助
3.⎩⎨⎧owe... ... 欠……，把……归功于……
owe to sb.that... ……归功于某人owing 由于，因为
【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.。