2012届高考英语选修8 Unit 2顶尖复习教案

编辑: 逍遥路 关键词: 高三 来源: 高中学习网
Unit 2 Cloning 克隆
核心词汇
1.The chemicals that are harmful to the environment are ____________(禁止)here.
2.Christmas____________(装饰品)now have started to sell well in our shop.
3.She fell heavily,____________(撞)her head against the side of the boat.
4.She ____________(喜爱,爱慕)her grandchildren and is always buying them presents.
5.Before rules and____________(规则)were introduced,the sport was very dangerous.
6.It’s not ____________(仅)a matter of cost,but whether she’s old enough to go on holiday alone.
7.I am sure she has the ability to____________(承担)all kinds of housework.
8.I thought the price of the car was quite____________(合理的),so I decided to buy it.
9.用object 的适当形式填空
(1)Grey decided to move to the countryside and his wife made no ____________ to it.
(2)Some members of the committee ____________to my proposal,which made me disappointed.
10.用assume的适当形式填空
(1)We are working on the ____________that the conference will take place as planned.
(2)____________that his story is true,what should we do?
1.forbidden 2.decorations 3.striking 4.adores 5.regulations 6.merely 7.undertake 8.reasonable 9.(1)objections (2)objected 10.(1)assumption (2)Assuming
高频短语
1.________________ 得到好结果;取得成功;偿清
2.________________ 沮丧;不愉快
3.________________ 反对
4.________________ 赞成;支持
5.________________ 把……归功于……
6.________________ 一定或注定(做)……
7.________________ 使……刻骨铭心
8.________________ 不时;偶尔
9.________________ 使复生;使复活
10.________________ 白费力气;枉费心机
11.________________ 状况很好/坏;情况很好/坏
1.pay off 2.cast down 3.object to 4.in favour of 5.owe...to... 6.(be)bound to (do)... 7.strike...into one’s heart 8.from time to time 9.bring back to life 10.in vain  11.in good/poor condition
重点句式
1.But at last the determination and patience of the scientists ____________in 1996 with a breakthrough—the cloning of Dolly the sheep.
但是决心和耐心使科学家们最终于1996年收获了突破性的结果——克隆羊“多莉”。
2.____________the disturbing news ____________Dolly had become seriously ill.
接着传来了多莉病重的坏消息。
3.Is it ____________cloning or ____________it?
它是赞成克隆行为还是反对克隆行为?
4.Scientists believe human cloning is just____________but____________human clones have already been born hasn’t been proved yet.
科学家们相信人类的克隆只不过是时间问题,但是克隆人已经问世的说法还没有被证实。
5.________________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.
其优点是如果发生了某种新的疾病,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,并且把这种免疫力传给下一代。
1.paid off 2.Then came;that 3.in favour of;against 4.a matter of time;the assumption that 5.The advantage is that
知识详解
1 .object vi. 反对;不赞成 
    n.物体;目标
(回归课本P12)On the other hand,Dolly’s appearance raised a storm of objections and had a great impact on the media and public imagination.
另一方面,多莉的出现引起了一阵强烈的反对,对媒体和公众的想象力也产生了极大的影响。
[归纳拓展]
[例句探源]
①(牛津P1372)If nobody objects,we’ll postpone the meeting till next week.
如果没有人反对,我们就把会议推迟到下周。
②(牛津P1372)I really object to being charged for parking.
我非常反对收停车费。
③(牛津P1372)If you’re late,you’ll defeat the whole object of the exercise.
如果你迟到了,便不能达到整个活动的目的。
④I objected that he was too young for the position.
我提出反对意见他太年轻不适合这个职位。
⑤(牛津P1372)The main objection to the plan was that it would cost too much.
反对这个计划的主要理由是费用过高。
[即境活用]
1.I don’t mind her criticizing me,but________is how she does it that I object to.
A.it           B.that
C.this D.which
解析:选A。考查代词it的用法。本题关键是并列连词but。粗心的学生可能会误选which,认为此处为一个定语从句。object to反对;抗议。句意:我不介意她批评我,但我反对的是她批评我的方式。
2 .undertake (undertook;undertaken) vt. 着手;
从事;承担
(回归课本P11)It is a difficult task to undertake.
这是一项很难完成的任务。
[归纳拓展]
①(朗文P2241)Two new studies have been undertaken to determine the effects of the chemicals.
已经进行了两项新研究以确定这些化学制品的作用。
②(牛津P2197)University professors both teach and undertake research.
大学教授既要又要从事研究工作。
③He undertook to finish the job by Friday.
他答应在星期五以前完成那项工作。
④I can undertake that you will enjoy the trip.
我保证你会喜欢这次旅行。
[例句探源]
[即境活用]
2.Who do you think is the right person________ ________ ________ ________(承担这项任务)?
答案:to undertake the task
3 .forbid (forbade/forbad,forbidden) vt.  禁止,
不准
(回归课本P12)Some began to reform their legal systems and forbade research into human cloning...
有些政府开始改革他们的法律制度,禁止进行克隆人的研究……
[归纳拓展]
[例句探源]
①(牛津P794)You are all forbidden to leave.
你们都不准离开。
②(牛津P794)He forbade them from mentioning the subject again.他不准他们再提这个问题。
③I will forbid you to leave unless you apologize for what you have done.
如果你不为自己所做的事情道歉,我不允许你离开。
④He forbids smoking during office hours.
他禁止在办公时间抽烟。
[即境活用]
3.完成句子
(1)当火车行驶时,禁止我们往窗外看。
We ________ ________ ________ ________ ________of the window when the train was moving.
答案:were forbidden to look out
(2)他甚至禁止我去网吧会见我的网友!
He has even ________ ________ ________ ________my friends online at the Internet café!
答案:forbidden me from meeting
4 .owe  vt. 欠(账、钱、人情等);归功于……,应感谢
(回归课本P13)You owe the lady an apology.
你必须向这位女士道歉。
[归纳拓展]
[例句探源]
①(牛津P1427)Thanks for helping me—I owe you a favour.
谢谢你帮助我——我欠你一个人情。
②These early settlers owed their survival to hard work and determination to succeed.
这些早期移民把他们的幸存归功于艰苦劳动和追求成功的决心。
③If I have improved in any way,I owe it all to my teacher.
如果说我有一些进步,这应该全部归功于我的老师。
④(2009年高考湖北卷) Owing to her assistance,we succeeded in starting the engine.
多亏她帮忙,我们才成功启动了引擎。
[即境活用]
4.她把她的成功归功于幸运,而不是有能力。
She ________ ________ ________ ________ ________ ________rather than to ability.
答案:owes her success to good luck
5 .bother vt. 打扰 
vi. 操心
  n. 烦扰;令人烦恼的事或人
(回归课本P14)However,the problem that she later developed a serious lung disease bothered scientists.
然而,之后她患上了严重的肺病的问题使科学家们困扰。
[归纳拓展]
[例句探源]
①He didn’t even bother to let me know he was coming.
他甚至连通知都没通知我他要来。
②(牛津P221)I don’t want to bother her with my problems at the moment.
我此刻不想让她为我的事操心。
③(牛津P221)Sorry to bother you,but there is a call for you.
很抱歉打扰你一下,有你的电话。
[即境活用]
5.—I’m sorry to________you,but can you tell me the way to the nearest supermarket?
—I will do some shopping,too.Shall we walk there together?
A.bother      B.carry
C.affect D.award
解析:选A。句中I’m sorry to bother you 相当于Excuse me“对不起,打扰一下”,故选A。
6 .pay off 得到好结果;取得成功;偿清
(回归课本P11)But at last the determination and patience of the scientists paid off in 1996 with a breakthrough—the cloning of Dolly the sheep.
但是决心和耐心使科学家们最终于1996年收获了突破性的结果——克隆羊“多莉”。
[归纳拓展]
[例句探源]
①(朗文P1503)Mr.Li was driving a taxi on the weekends to pay off all his debts.
李先生周末开出租车赚钱以还清他的所有债务。
②Her design won the first prize in the competition.Years of patience and hard work had at last paid off.
她的设计在比赛中获得一等奖。多年的耐心和艰苦的工作终于得到了好的结果。
③If you don’t work now,you’ll pay for it later when you fail your exams.
你现在不好好学习,到考试不及格时就会为此而付出代价。
④He had to work parttime so as to pay for his education.
他必须做兼职工作来支付学费。
⑤That I can pay back the help people give me makes me happy.
能够回报人们给我的帮助让我感到很开心。
[即境活用]
6.—Li Feng won the first prize in the national English competition.
—Oh,really? I’m glad that her efforts at last________.
A.worked out      B.got back
C.paid off D.turned out
解析:选C。答句句意:噢,真的吗?我很高兴她的努力终于得到了好的结果。pay off(指冒风险的政策、做法等)带来好结果,成功,行得通。又如:The gamble paid off.赌赢了。
7 .in favour of 赞成;支持
(回归课本P12)Is it in favour of cloning or against it?
它是赞成克隆行为还是反对克隆行为?
[归纳拓展]
[例句探源]
①My sister was against my suggestion while my brother was in favour of it.
我姐姐反对我的提议,然而我弟弟却赞成。
②Could you do me a favour and turn off the light?
请帮忙把灯关掉好吗?
[即境活用]
7.I am ________your suggestion________we should spend more time on this project.
A.in favour of;which
B.in honor of;that
C.in favour of;that
D.in honor of;which
解析:选C。句意:我很赞成你的建议那就是我们应该在这工程上花费更多的时间。in favour of 赞成;in honor of 向……表示敬意;为纪念……。第二个空为that 引导的同位语从句。
8.(2011年皖南八校模拟)Many young people left their hometown for big cities________better jobs.
A.in favour of B.in search of
C.in charge of D.in honour of
解析:选B。in favour of赞成,支持;in search of寻找;in charge of负责,掌管;in honour of为向……表示敬意。结合语境应选B项。
【教材原句】 Then came the disturbing news that Dolly had become seriously ill.(P12)
接着传来了令人烦恼的消息——多莉得了重病。
【句法分析】 (1)表示方位、时间或方式的副词或介词短语,如here,there,now,then,up,down,in,away,off,out,in the room,on the wall等置于句首时,句子用倒装语序。
①(2009年高考福建卷)For a moment nothing happened.Then came voices all shouting together.
有一会儿什么也没发生。接下来传来一起欢呼声。
②Then came the news that the war was over.
接下来传来战争结束的消息。
③Out rushed the children.
孩子们冲了出去。
④There goes the bell.铃响了。
(2)本句中that引导的从句为同位语从句,that仅起连接作用,无实意。
常见的后接同位语从句的抽象名词有:fact,news,hope,truth,idea,suggestion,thought,question,order,problem,belief,fear等。
同位语从句常用that引导,也可以由连接代词who,what,whose,which,连接副词how,when,where,why或连词whether来引导。
⑤The news that he has been elected president of the United States is true.
他当选美国总统的消息是真的。
⑥The question whether we should continue to do the experiment has not been answered yet.
我们是否该继续实验的问题还没有被解决。
⑦I have no idea where the new library will be built.
我不知道新图书馆将要建在哪里。
⑧We must face the fact that we have run out of all the money.
我们必须面对我们已花完了钱这一事实。
[即境活用]
9.(2010年高考陕西卷)John opened the door.There________he had never seen before.
A.a girl did stand     B.a girl stood

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