2019高考英语一轮复习 Unit 2 Cloning素材 新人教版选修8

2019高考英语一轮复习 Unit 2 Cloning素材新人教版选修8话题词汇1．invention n．发明2．progress n．进步3．digital adj.数字的4．breakthrough n．突破5．technical adj.技术的6．automatic adj.自动的7．make a study of研究8．shop online网上购物9．surf the Internet网上冲浪10．browse the web page浏览网页经典语篇假如你是李华，最近老师向你们介绍了两种已灭绝的古代动物，并就哪一种动物更加适合被克隆举行了一次讨论。

请你结合下表为你所在的小组写一篇发言稿，就选择理由及原因进行说明。

佳作欣赏Dear fellow students，I’m so honored to speak here on behalf of our group.After a heated discussion，we agreed that the dodo is the very animal that is well worth cloning.On the one hand，compared with the aurochs，the_dodo_is_much_smaller，which_means_that_the_dodo_will_consume_much_less_food ①.Besides，the dodo became extinct fairly recently so its DNA is still in good condition.On_the_other_hand，the_aurochs_cannot_live_without_grasslands，while_the_dodo_can_adapt_to_the_hot_climate_easily.②If the dodo is cloned，that will be of great benefit to us.Because it can not only be a friendly animal but also b e an ideal pet for families with children.What’s more，it may produce large nutritious eggs and tasty meat for people.All in all，the dodo would be the_best_choice_to_be_brought③ back to life!That’s all! Thank you.思维发散1．将第①句中的定语从句改为非谓语形式The_dodo_is_much_smaller，meaning_that_the_dodo_will_consume_much_less_food. 2．仿照第②句用while...完成句子北方的学校往往装备较好，而南方的学校相对较穷。

Schools in the north tend to be better equipped，while_those_in_the_south_are_relatively_poor.3．仿照第③句用“最高级/序数词＋to do...”完成句子英格兰教会中学Walkwood被认为是英国第一所禁止13岁以下女生穿裙子的学校。

Walkwood Church of England Middle School is believed to be the first in England to_stop_female_pupils_under_the_age_of_13_from_wearing_skirts.Ⅰ.重点单词A．写作单词1．obtain (vt.)获得；赢得2．owe (vt.)欠(账、钱、人情等)；归功于……3．bother (vt.)打扰；(vi.)操心；(n.)烦扰4．strike (vi.& vt.)打；撞击；罢工；(n.)罢工5．vain (adj.)虚荣的；自负的；徒劳的6．exact (adj.)精确的；准确的exactly (adv.)精确地；准确地；确切地7．differ (vi.)不同；相异different (adj.)不同的differently (adv.)不同地；相异地difference (n.)不同；差异8．retire (vi.)退休；离开retirement (n.)退休；离开9．reasonable (adj.)合情理的；讲道理的；公道的reason (n.)原因；理由10．resist (vt.)抵抗；对抗resistance (n.)抵抗；阻力；抗力；电阻11．object (vi.)反对；不赞成objection (n.)不赞成；反对；异议B．阅读单词12．cast (vt.)扔；投；掷13．altogether (adv.)总共；完全地14．arbitrary (adj.)任意的15．attain (vt.)获得；到达(水平、年龄、状况等) 16．conservative (adj.)保守的；守旧的17．forbid (vt.)禁止；不准18．compulsory (adj.)必须做的；义务的；强迫的；强制的19．shortly (adv.)立刻；不久20．drawback (n.)缺点；不利条件21．undertake (vt.)着手；从事；承担22．breakthrough (n.)突破23．moral (adj.)道德(上)的；伦理的24．regulation (n.)规则；规章；法规regular (adj.)有规律的；规则的；定期的；经常的25．initial (adj.)最初的；开始的initially (adv.)开始；最初26．merely (adv.)仅；只；不过mere (adj.)仅仅的；只不过27．decoration (n.)装饰decorate (v.)装饰28．unable (adj.)不能的；不会的able (adj.)能够的；有能力的disable (vt.)使无能力；使残废；使伤残disabled (adj.)残疾的29．adore (vt.)崇拜；爱慕；喜爱30．procedure (n.)程序；步骤；手续process (n.)过程；进行；方法；步骤；程序；(vt.)加工；处理31．accumulate (vt.& vi.)积累；聚积accumulation (n.)积累；累积；堆积物32．assumption (n.)假定；设想assume (vt.)假定；设想Ⅱ.重点短语1．cast_down使失望；使沮丧2．object_to反对3．in_favour_of赞成；支持4．(be)_bound_to_(do)．..一定或注定(做)……5．from_time_to_time不时，偶尔6．pay_off得到好结果；取得成功；偿清7．bring_back_to_life使复生；使复活8．in_vain白费力气；枉费心机9．strike...into_one’s_heart使……刻骨铭心10．in_good/poor_condition状况很好(坏)；情况很好(坏)Ⅲ.经典句式1．It happens in plants when gardeners take cuttings from growing plants to_make_new_ones.当园艺师从生长着的植物上剪下枝来培植新植物时，它(克隆)就发生了。

2．Then came the disturbing news that_Dolly_had_become_seriously_ill.接着传来了令人烦恼的消息——多莉得了重病。

3．However，scientists still wonder whether_cloning_will_help_or_harm_us and where_it_is_leading_us.然而，科学家们仍然想知道克隆技术是会帮助我们还是伤害我们，以及它将把我们引向何处。

4．The advantage is that_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.其优点是如果产生一种新的疾病，这类动物中的一些可能会死掉，但是另外一些却能存活下来，并将这种抵抗能力传给下一代。

5．Could_it_be_solved if corrections were made in their research procedure?如果改进研究程序，问题会不会解决呢？Ⅳ.课文语法填空Cloning is a way of making an exact copy of 1.another animal or plant.2.It has two major uses.One is that gardeners use it to produce commercial quantities of plants.The other is that it is 3.valuable(value) for research on new plant species and for medical research on animals.However，the process of cloning is difficult to undertake.The first successful clone，Dolly the sheep,4.made(make) the whole scientific world follow its process，though it had 5.more(many) problems than the normal sheep.On the other hand，Dolly’s 6.appearance(appear) raised a storm of objections and had a great impact 7.on the media and public imagination.Different people have different opinions 8.on it.9.However，scientists still wonder whether cloning will help or harm us and 10.where it is leading us.1. differ vi.不同；相异；意见相左to disagree with sb.不同于；和……不同.对……起作用；对……有影响在……方面与……不同(1)The story he told the police differed from the one he told his mother.他在警方和母亲那里的说辞不一。