Unit2CloningLanguagepoints导学案- 高中英语人教新课标选修八.doc

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1、高二英语选修8unit 2Cloning导学案Period 3 Language points一学习目标：1.To get the Ss to learn to use the important new words and phrases freely.2.To get the Ss to experience the procedure of the debate contest.二.教学重点 To use some useful words and expressions.三Teaching difficult point: 1.The understanding and analyze

2、 of some difficult and long sentences in the text. 2.Ask the Ss to talk about cloning.三 预习自测Discuss the advantages and disadvantages of cloning.Problems or dangers of cloningAdvantages of cloning四作探究： Language points:1. This happens in plants when gardeners take when twins identical in sex and 1) “w

3、hen gardeners take cuttings from growing plants to make new ones, when twins identical in是两个时间状语从句。when 引导的时间状语从句中从句的动作可以与主句的动作同时发生，也可以先于主句的动作。Dont be afraid of asking for help _ it is needed. A. unlessB. sinceC. althoughD. when2) happen vi. occur by chance; take place (偶然地)发生; 出现 happen to do happe

4、n to sb. It happened that happening n. 事件; 偶然发生的事 (常用复数)辨析: happen, occur, take place与come about四词都有“发生”之意, 但有区别。happen 是一般用语, 词义较广, 强调事情发生的偶然性;occur 用法较正式, 既可以指自然发生, 也可以指有意安排。take place 一般指有计划, 按事先安排的进行的含义。come about 往往注重事情发生的原因, 常与how 连用。以上四组词均为不及物动词, 无被动语态。Use the above words to fill in the blank

5、s1) When did the explosion _?2) Important elections _ this fall.3) The concert will _ next Sunday.4) How did the quarrel _?2. undertake vt. (undertook; undertaken)着手做, 从事, 进行; 担任, 承担, 答应, The procedure is difficult to undertake, of course. 当然, 这个过程很难实施。The scientist undertakes the experiment.科学家从事这项

6、实验。I can undertake the responsibility for the changes我愿意承担这些变革的责任。完成下列句子。1) The lawyer _ a new case.那个律师接了一个新的案子。2) He will _ _ _ next month (去旅行).3) He _ _ _ _. (承担一项新任务)3. pay off (事业、计划等) 成功; 付清薪水并解雇; 偿还(债务等)。At last the determination and patience of scientists paid off 最终科学家们的决心和耐心得到了回报He paid o

7、ff the crew of the ship.他付清全体船员的工资并将他们解雇。In the end he paid off all his debts.最终他还清了所有的债务。pay back 报答; 报复 用介词back, off, to,填空：1) -Your effort is sure to pay_. - Thank you for your encouragement.2) The supermarket _ which he had ever paid a visit, was burnt to the ground.3) How can I pay you _ for al

8、l your kindness?4) Well, after these years, weve at last paid _ all our debts. 4. The fact that she seemed to develop normally was very encouraging. 多莉看来是在正常地成长着, 这很令人鼓舞。“that she seemed to develop normally”是同位语从句。同位语从句可由when/ where/ how/ why/that/ whether等词引导。先行词多半是idea/ fact/ news/hope/ belief/ th

9、ought/ doubt/question等。同位语从句一般放在抽象名词之后, 用以说明抽象名词的具体内容, 有时为了保持句子的平衡, 同位语从句还可以放在动词的后面。如: Soon word came that we won. 5. Then came the disturbing news that Dolly had become seriously ill. 然后传来了多莉病重的坏消息。本句中, 副词then放于句首, 主语是名词“news”, “that Dolly had become seriously ill”是同位语从句, 句子用了倒装语序。In the dark fores

10、ts _, some large enough to hold several English towns. A. stand many lakesB. lie many lakes C. many lakes lieD. many lakes stand6. cast down 使沮丧; 毁掉 (常用于被动语态或作表语)Cloning Scientists were cast down to find that Dollys illness were more appropriate to a much older animal. 克隆科学家沮丧地发现多莉的病更容易在年老的羊身上。不要这么沮

11、丧, 打起精神来！Dont be so cast down. Just keep up your spirits.cast away 丢弃 cast off 放弃; 丢弃 cast out 赶走将下列句子译成英语。1) 听到这个消息他很沮丧。_2) 发现事情的真相使他很沮丧。_7.object vi.We object to being treated like this. 我们抗议这种待遇。I object to the plan. 我反对这项计划。object vt. I object that he is too young to take that position. 我提出反对意见:

12、 他太年轻不适合那个职位。object to (doing ) sth. object + that 从句objection 是名词, 常与have, take, feel 等连用have / take / feel objection to (doing )sth.即时练习: 句型转换(1) Have you any objection to my opening the window?= Would you _ _ my opening the window?(2) take objection to smoking.= I _ _ smoking.(3) “But he is too y

13、oung,” she argued.= She _ that he was too young.13. attain vt. 获得(尤其指经过努力)达到 (年龄, 水平, 状况等)He attianed success through hard work. He attained the age of 25 before marriaging. 比较：obtain vt. (经买, 借, 拿等)获得, 得到某物He always manages to obtain what he wants.Where can I obtain a copy of her latest books? 8. f

14、orbid vt. (forbade; forbidden)禁止, 不许, 妨碍, 阻止 Governments became nervous and many forbade research into human clothing. 政府开始感到不安, 有许多政府禁止对克隆的研究。Smoking should be forbidden in public places.公共场所应禁止吸烟。Her father forbid her to go out alone.她父亲不许她单独外出。I forbid you entering my study.我不许你进入我的书房。forbid sb.

15、to do / forbid sb. from doing sth. 禁止某人做某事forbid sth. 禁止某事与forbid 结构相同的词有：permit sb to do / permit doing sth 允许某人做某事/允许做某事；allow sb. to do / allow doing sth允许某人做某事/允许做某事；advise sb. to do / advise doing sth. 建议某人做某事/建议做某事1) The school _ _ _ _ _ (禁止学生吸烟).2) He is forbidden to _ _ _ (进入这个房间).3) There a

16、re laws in some countries which forbid advertisements _ at inappropriate times and places.A. being shown B. shown C. show D. to have shown4) At the conference he was forbidden _ the subject again.A. mentioning B. to mention C. mention D. mentioned9.Is it in favour of cloning or against it?in favour

17、of 是固定短语, 意思为: 赞同, 支持; 等同于approve of。如：As to education, most specialists are in favour of further reform. 关于教育问题, 多数专家支持做进一步改革。do a favour for sb. / do sb. a favour帮某人一个忙与in favour of 结构相同的短语有：in praise of 表扬 in honor of /in memory of 纪念in case of 如果,假使in charge of 掌管in possession of 拥有in consequenc

18、e of 由于, 作为的结果用上述短语填空。1) All his family are _ his decision to work in western area after graduation.2) While reading, _ coming across new words, youd better guess their meanings rather than refer to the dictionary.3) Mary told me that she was _ some lovely jewels.4) They had to move to another city

19、_ the typhoon. 五当堂检测及总结提升：1. In many aspects natural clones, such as identical twins, do not d_ greatly from man-made ones. 2. He was c_ down when the procedure he had used to produce a mammal clone ended in failure. 3. Dust will a_ in a deserted house. 4. Her memory is so excellent that she could r

20、emember the e_ names5. She was not a_ pleased at the corrections he made to her work. 6. Grey decided to move to the countryside and his wife made no o_ to it. 7. According to the constitution, it is compulsory for a citizen to u_ military service. 8. The media has a m_ responsibility to report news truthfully. Homework:1.Complete the Exx1,2,3 on page 13 in the SB.2.阅读同位语从句的定义及用法并做同位语从句的预习自测。