人教版英语：选修8 Unit+2 Cloning
6.forbid vt.禁止；不准→___f_o_rb_a_d_e_/_fo_r_b_a_d__ (过去式)→__fo_r_b_id_d_e_n___ (过去分词) 7.assumption n．假定；设想→_a_s_s_u_m_e__ vt.假定；设想 8.strike vt.& vi.打；撞击；罢工 n．罢工→__st_r_u_c_k__ (过去式)→___s_t_ru_c_k_/_st_r_ic_k_e_n___ (过去分词) 9.vain adj.虚荣的；自负的；徒劳的→__v_a_n_it_y__ n．自负；虚荣心；无意义 10.resist vt.抵抗；对抗→__r_e_s_is_ta_n_c_e___ n．抵抗；对抗→__r_e_s_is_t_a_n_t __ adj.有抵抗力 的；抵制的(拓展速记 1)
2021高三一轮总复习
人教英语
提高效率 ·创造未来 ·铸就辉煌
第一部分 教材知识突破
选修八
Unit 2 Cloning
栏 目 基础盘点 ·自测自评 1 导 航 考点串讲 ·重点突破 2
3 随堂检测 ·基础过关 4 话题拓展 ·素养升华 5 课时跟踪 ·一练而就
1
基础盘点 ·自测自评
重点词汇 阅读单词 快速排查本单元阅读词汇并在不认识的词汇前划√ □twin n．& adj. □straightforward adj. □arbitrary adj. □medium n． □fate n． □cast vt. □moral adj. □conservative adj. □constitution n． □compulsory adj. □opera n． □chorus n． □loaf n． □flour n． □impact n． □feather n． □turkey n． □hatch vt.& vi.
get off 下车；脱下 give off 发出(光、热、气等) go off 走开；(铃)响了 keep off 勿踏；勿踩 pay off 得到好结果；取得成功；偿清
高频短语 1.__p_a_y_o_f_f__ 得到好结果；取得成功；偿清(拓展速记 2，3) 2.__c_a_s_t _d_o_w_n__ 使失望；使沮丧 3.__i_n_f_a_v_o_u_r _o_f___ 赞成；支持 4.__(_b_e_) _b_o_u_n_d_t_o_(_d_o_)_.._. _____ 一定或注定(做)…… 5.__s_tr_i_k_e._.._in_t_o_o_n_e_'_s_h_e_a_rt_________ 使……刻骨铭心 6.__f_ro_m__t_im__e_t_o_t_i_m_e____ 不时；偶尔 7.__b_r_in_g__b_a_ck__t_o_l_if_e_____ 使复生；使复活 8.__i_n_v_a_in___ 白费力气；枉费心机 9.__i_n_g_o_o_d_/_p_o_o_r _c_o_n_d_it_io_n_____ 状况很好(坏)；情况很好(坏)
核心单词 1._o_w__e_ vt.欠(账、钱、人情等)；归功于…… 2._b_o_t_h_e_r__ vt.打扰 vi.操心 n．烦扰 3._o_b_t_a_in___ vt.获得；赢得 4._e_x_a_c_t__ adj.精确的；准确的 5._a_t_ta_i_n___ vt.获得；到达(水平、年龄、状况等) 6._u_n_a_b_l_e__ adj.不能的；不会的
1.“resist”形近词集锦 assist v．协助 assistant n．助手 consist vi.由……组成 consistent adj.始终如一的 insist v．坚持 resist vt.抵抗
拓展速记
2.“v.＋off”短语小结(一) break off 打断；折断；中止；中断 carry off 夺走；赢走(奖项) come off 从……离开；脱落 cut off 切断 drop off(纽扣等)脱落；(使、让) 下车
走进高考 1.obtain 熟义： vt.获得；赢得 生义：v.存在；沿袭 The longer this situation obtains, the more extensive the problems become. 2.undertake 熟义：vt.着手；从事；承担 生义：v.承诺；允诺；答应 He undertook to finish the job by Friday.
3.The advantage is that...“优势是……” [原句] 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. 其优点是如果发生某种新的疾病，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。 [仿写] 骑自行车上班的优势是我们可以过一种低碳生活。 _T_h_e__a_d_v_an_t_a_g_e_o_f_c_y_c_l_in_g__to__w_o_r_k__is_t_h_a_t_________ we can live a lowcarbon life.
[语境活用] 用左栏短语的适当形式填空 1.His parents tried to persuade him not to give up his wellpaid job, but their efforts were __in__v_a_in___. 2.The athlete's years of hard training __p_a_id__o_f_f __ when she finally won the Olympic gold medal. 3.Don't let yourself be __c_as_t_d_o_w__n__ by a small failure in the experiment, try again. 4.In ancient times, people believed that they could be __b_r_o_u_g_h_t_b_a_c_k_t_o_l_if_e_____ after death. 5.You've done so much work that you __a_r_e_b_o_u_n_d_t_o___ pass the exam. 6.He is ___i_n_g_o_o_d__c_o_n_d_it_i_o_n__ for a man of his age.
11.merely adv.仅；只；不过→__m_e_r_e_ adj.仅仅的 12.decoration n．装饰→__d_e_c_o_ra_t_e__ vt.装饰；装修 13.adore vt.崇拜；爱慕；喜爱→__a_d_o_r_er__ n．崇拜者；赞美者；热爱者 14.reasonable adj.合情理的；讲道理的；公道的→__r_e_as_o_n__ n．理由；道理
拓展单词 1.differ vi.不同；相异→__d_if_f_e_re_n_t___ adj.不同的→__d_if_fe_r_e_n_c_e___ n．差异；区别 2.undertake vt.着手；从事；承担→_u_n_d_e_r_t_o_o_k__ (过去式)→_u_n_d_e_r_t_ak_e_n___ (过去分词) 3.correction n．改正；修正；纠正→__c_o_r_re_c_t__ vt.改正；纠正；批改 4.object vi.反对；不赞成→__o_b_je_c_t_io_n___ n．不赞成；反对；异议→__o_b_j_e_c_ti_v_e__ adj. 客观的 5.medium n．媒介；手段；工具→_m__e_d_ia__ n. (medium 的复数)大众传播媒体(如电视、 报纸等)
重点句式 1.that 引导同位语从句 [原句] Then came the disturbing news that Dolly had become seriously ill. 接着传来了多莉病重的坏消息。 [仿写] 我们足球队赢了比赛的消息令人鼓舞。 The news __t_h_a_t_o_u_r_f_o_o_tb_a_l_l _te_a_m__h_a_d_w__o_n_t_h_e_m__a_tc_h________ was encouraging.
7.__d_r_a_w_b_a_c_k_ n．缺点；不利条件 8.__b_r_e_ak_t_h_r_o_u_g_h__ n．突破 9.__a_lt_o_g_e_th_e_r___ adv.总共；完全地 10._i_n_it_ia_l____ adj.最初的；开始的 11._s_h_o_rt_l_y___ adv.立刻；不久
5.His explanation was not __r_e_as_o_n_a_b_l_e__ (reason), so all of us didn't accept it. 6.Don't __as_s_u_m__e_ that you are a princess and stop living in __a_ss_u_m__p_ti_o_n_s__ any more. (assume) 7.Although they are twins, they _d_i_f_fe_r___ from each other in many aspects. One of their major __d_i_ff_e_r_e_n_ce_s___ is that they have __d_i_ff_e_r_en_t___ characters. (differ) 8.Many people raised an _o_b_je_c_ti_o_n__ to the news report, arguing that it is not _o_b_j_e_c_ti_v_e_. (object)
人教版高中英语选修八《Unit 2 Cloning》Reading 课件 2
Therapeutic (治疗的) cloning is to produce a healthy copy of a s_ic_k_ person’s tissue (肌肉 组织) or organ for transplant in order to save the lives of those who would d_ie__ without it. This t_ec_h_n__iq_u_e_ would be many times better than r_el_y_i_n_g_ on organ transplants from other people. The tissue or organ would have the sick person’s original DNA.
the sheep, all of the following are
true EXCEPT ___C__.
A. the lamb is the clone of the donated cell from sheep B
B. electricity is needed C. female sheep B provides an egg cell D. three female sheep are used
1) Cloning means making a copy of an animal or a plant.F
2) Gardeners can make a lot of money by cloning plants. T
3) Cloning animals is as complicated as cloning plants. F
4) Dolly the sheep was the first successful clone of a mammal. T
新教材高中英语选修8Unit 2 Cloning
精品英语
(一)重点词汇——分类记忆 Ⅰ.阅读词汇——知其意 1．straightforward adj. 2．moral adj. 3．arbitrary adj. 4．fate n. 5．initial adj.
一、语基必备知识
_简__单__的__；__直__接__的__；___坦__率__的__ _道__德__(_上__)_的__；__伦__理__的_______ __任__意__的__________________ _命__运__；__天__命_______________ __最__初__的__；__开__始__的__________
7．assume vt.假定；设想→__a_s_s_u_m__p_t_io_n___ n．假定；设想 8．popular adj.流行的；通俗的；受欢迎的→__p__o_p_u_la_r_i_t_y___ n．受人喜爱；流行 9．object vi.反对；不赞成→__o_b__je_c_t_io_n_____ n．不赞成；反对；异议 10．correct vt.改正；纠正→__c_o_r_r_e_c_t_io_n____ n．改正；纠正 11．resist vt.抵抗；对抗→____r_e_s_is_t_a_n_t___ adj.抵抗的，反抗的→___r_e_si_s_ta__n_c_e___ n．抵 抗 12．exact adj.精确的；准确的→__e_x_a_c_t_ly_ adv.精确地
赞成；支持 寻找 鉴于；由于 为了纪念 为了纪念 就……而言
2.“v.＋off”短语荟萃 ①pay off ②cut off ③take off ④turn off ⑤put off ⑥give off
得到好结果；取得成功；偿清 切断 起飞 关闭 推迟 发出光/热/气体等
人教英语选修8课件：Unit2CloningSection2
Unit 2Section II Learning about Language栏目导航课堂深度拓展0_课末随堂演练课后限时作业Q课堂深度拓展|考点语法细解-同位语从句■一、同位语从句的引导词■引导同位语从句的词语通常有连词(that,whether)＞连接代词和连接副词等。
■1 .由that引导■©We heard the news that our team had won.■我们听到消息说我们队赢了。
；；：■②They were worried over the fact that you were■ (3)The news that we are having a holiday tomorrow is not true.■明天放假的消息不实。
；；；；；■④Tve come to the conclusion that it was unwise to do that.■我得出结论这样做是不明智的。
；；■⑤The fact that the money has gone does not mean it was stolen.-那笔钱不见了这一事实并不意味着是被偷了■【注意】在某些名词(如demand,wish,suggestion,resolution^) 后面的同位语从句要用虚拟语气。
女口：■©They were faced with the demand that this tax (should) be abolished.■他们面对废除这个税的要求。
；：；■©They expressed the wish that she (should) accept the award.■他们表示希望她接受这笔奖金。
■©There was a suggestion that Brown (should ) be dronned from the team.■2•由whether 引导■©There is some doubt whether he will come. ■他是否会来还不一定。
人教版高中英语选修八课件Unit+2+CloningUsing+Language
It would be unfair to clone any Reason 3: extinct animals if they would have to live in a zoo.
Comprehending
1.The writer of the text _____. A. is excited by the possibility of cloning fierce and extinct animals B. believes that extinct animals can be brought back to life by cloning C. thinks it impossible or unsuitable to clone extinct animals like dinosaurs D. dreams of dinosaurs returning to the earth
Are they real?
2. Do you like dinosaurs? Can you see them in our real life? Why? 3. Do you think it is possible to clone dinosaurs? If not, why? If yes, do you think that’s good for human beings? Why?
3. Which of the following is true? A. Mice were cloned in 1981. B. Dolly the sheep was the first cloned animal. C. The name of the cloned cow is “Bison”. D. China was successful in cloning mammals.
人教版高中英语配套ppt课件：选修8 unit 2 Cloningperiod 1
genetic material of a regular body cell. Differen
from the common propagate, cloning needs only one cell and without sex. In 1997, the great news shocked the whole
Unit 2 Cloning
Today's technology develops
①so
quickly that marue; the cloning technology is the example. What is cloning? Cloning is a process used to create an exact copy of a mammal by using the complete
animal cloning but be against with the human cloning.
Ⅰ.阅读短文，判断正(T)误(F) 1．People think cloning is good. ( ) ) ) 2．Cloning animals can live as long as the originals. ( 3．Seven countries disagree to clone human beings. (
But cloning still has some problems. The scientists found
that the cloning animal's Gene has a little different from the original animal. So the life will be shorter than the real life. The fact proved that, the cloning sheep Dolly has died. It only has the half life of the common sheep.
高二英语人教版选修八同步练习 Unit 2 Cloning Warming Up
Unit 2 Cloning Warming Up, Pre-reading, Reading &Comprehending一、汉译英1.Sports account for a growing amount of income made on the sales of _____________(商业的)time by television.2.The choice of players for the team seemed completely ___________(任意的).3.I could not find the _____________(准确的) word to express my feelings at that time.4.In order to __________(禁止) the technique, they take some practical measures.5.It is said that the author wrote seven books __________(总共).二、选用方框中短语的正确形式填空,每个限用一次1.Their language and customs __________ ours as we are from different countries.2.Some managers have __________ laying off too many employees.3.Jeans __________ an informal party.4. Opportunities and success tend to be __________ those who are ready.5. On the one hand, we should ask for help; __________ we should try our best to rebuild our houses.6. After ten years of hard work, Mathild __________ all debts at last.7.He will set off the day after tomorrow, __________ on May 26, Tuesday.8.His parents firmly __________ his going into the forest by himself.9.Mary __________ ever since her mother became so ill.10.The development of science and technology __________ our daily life, for example, the Internet.三、阅读理解Terrafugia Inc. said Monday that its new flying car has completed its first flight, bringing the company closer to its goal of selling the flying car within the next year. The vehicle-named the Transition–has two seats, four wheels and wings that fold up so it can be driven like a car. TheTransition, which flew at 1,400 feet for eight minutes last month, can reach around 70 miles per hour on the road and 115 in the air. It flies using a 23-gallon tank of gas and bums 5 gallons per hour in the air. On the ground, it gets 35 miles per gallon.Around 100 people have already put down a $10,000 deposit to get a Transition when they go on sale, and those numbers will likely rise after Terrafugia introduces the Transition to the public later this week at the New York Auto Show. But don’t expect it to show up in too many driveways. It’s expected to cost $279,000.And it won’t help if you’re stuck in traffic. The car needs a runway.Inventors have been trying to make flying cars since the 1930s, according to Robert Mann, an airline industry expert. But Mann thinks Terrafugia has come closer than anyone to making the flying car a reality. The govemment has already permitted the company to use special materials to make it easier for the vehicle to fly. The Transition is now going through crash tests to make sure it meets federal safety standards.Mann said Terrafugia was helped by the Federal Aviation Administration’s decision five years ago to create a separate set of standards for light sport aircraft, which are lower than those for pilots of larger planes Terrafugia says an owner would need to pass a test and complete 20 hours of flying time to be able to fly the Transition, a requirement pilots would find redatively easy to meet.1.What is the first paragraph mainly about?A.The basic data of the Transition.B.The advantages of flying cars.C.The potential market for flying cars.D.The designers of the Transition.2.Why is the Transition unlikely to show up in too many driveways?A.It causes traffic jams.B.It is difficult to operate.C.It is very expensive.D.It bums too much fuel.3.What is the government’s attitude to the development of the flying car?A.CautiousB.Favorable.C.Ambiguous.D.Disapproving.4.What is the best title for the text?A.Flying Car at Auto ShowB.The Transition’s Fist FlightC.Pilots’Dream Coming TrueD.Flying Car Closer to Reality四、七选五How to Care for a Pet FishTaking care of a pet is a big responsibility, so you should make sure you learn all about your pet before bringing it home. ①______ That' s because fish can give them a good idea of whether or not they'll be able to take care of a more complicated(复杂的) pet later on.First, choose what types of fish. ②______ They are easier to raise and give you enough experience to take care of fish and their tanks(水箱). Some kinds of fish do not get along with others, so you'll need to choose what kinds to buy.Next, make sure you have all of the necessary supplies. Fish need a fish tank. Make sure it is big enough for the number of fish. Fish tanks need a light and some machines to keep the water clean and at a comfortable temperature. ③______Now you can set up your aquarium(水族馆). Wash sand and decorations( 装饰物) clean and fill the bottom of the tank with them. ④______ Follow the instructions on the heater to heat up the water to the temperature your fish will need. Make sure your light is ready to go, too!⑤______ The pet store keeper can teach you how to make your fish get comfortable before you put them into your aquarium. Once the fish are in the tank, you have to watch them closely to make sure they don't get sick. Feed them in small amounts a few times a day. You will have to change some of the water at least once a week.A. Then, fill the tank with water.B. You are ready to pick up your fish.C. Many kids have fish as their first pet.D. You need some beautiful tanks to change.E. Be sure to get food for your fish as well.F. Freshwater fish are the best fish to start with.G. Save up your money for fish tank decorations.答案以及解析一、1.答案：commercial2.答案：arbitrary3.答案：exact4.答案：forbid5.答案：altogether二、答案：1.differ from; 2.raised an objection to;3.are appropriate for; 4.in favour of; 5.on the other hand; 6.paid off; 7.to be exact; 8.objected to; 9.has been cast down; 10.has an impact on三、答案：1.A; 2.C; 3.B; 4.D解析：1.本文是一篇记叙文。
【单元试卷】人教版高中英语选修八--Unit2-Cloning-单元测试卷(一)-Word版含答案
高二下学期训练卷 选修八 Unit2 Cloning英 语 （一）注意事项：1．答题前，先将自己的姓名、准考证号填写在试题卷和答题卡上，并将准考证号条形码粘贴在答题卡上的指定位置。
2．选择题的作答：每小题选出答案后，用2B 铅笔把答题卡上对应题目的答案标号涂黑，写在试题卷、草稿纸和答题卡上的非答题区域均无效。
3．非选择题的作答：用签字笔直接答在答题卡上对应的答题区域内。
写在试题卷、草稿纸和答题卡上的非答题区域均无效。
4．考试结束后，请将本试题卷和答题卡一并上交。
一、阅读理解(共8小题，每小题2分，共16分）AThink about the longest elevator ride that you’ve ever taken. Whether you rose five floors or 100, it probably took less than a few minutes. Now imagine riding in an elevator higher and higher as it climbs for nearly a day. When you reach the top floor, prepare for views that are really out of this world. You’ll be in space!Space elevators might sound like a crazy idea, but they’re something scientists have been working on for decades.Why would anyone want a space elevator? At the moment, riding in a capsule is the only way ordinary people can get to and from space. But those rides are very expensive — about $25 million per person per flight.Researchers are still figuring out the details about how a space elevator might work. One idea is stretching a very long cable — more than 37,000 kilometers — up to space from the earth’s equator (赤道). The location is important: Objects in space above the equator orbit the earth at the same speed that our planet turns. A weight on the end of the cable would stretch it tight. An elevator tied to the cable could use it to climb up and down.The only problem is that besides being long, this cable must also be very strong. Storms, including hurricanes might break it. One way to solve this problem is to stretchthe cable from the moon instead of from the earth. Airplanes designed to climb higher than a typical jet might take off from the earth and link up with the cable, which would be held in place by the pull of gravity from the earth. An elevator car waiting therewould then take riders the rest of the way to the moon. Fueled by solar power, theelevator could transport people and materials without much expense or effort per ride.So, when will you be taking your first space-elevator ride? Probably not for awhile.1. The first paragraph is presented by________. A. giving an example B. making a comparison C. asking questions D. analyzing causes2. Why have scientists been working on space elevators? A. To make trips to space cheaper. B. To help astronauts do research in space. C. To find a more convenient way to the moon. D. To prove an assumption which seems crazy.3. The underlined word “it” in Paragraph 4 refers to ________. A. the cable B. the equator C. an object in spaceD. a weight on the end of the cable此卷只装订不密封班级 姓名 准考证号 考场号 座位号4. Which part of a magazine may the article appear in?A. Science and technology.B. Sports.C. Literature.D. Entertainment.BWithin five years, a woolly mammoth (猛犸象)will likely be cloned, according to scientists who have just recovered well-preserved bone marrow (骨髓) in a mammoth bone.Russian scientist Siemyon Grigoriev and his colleagues are now analyzing the marrow, which they obtained from the mammoth, found in Siberian soil. Grigoriev and his team, along with colleagues from Japan, have announced that they will start a joint research project aimed at recreating the enormous mammal, which went extinct around 10,000 years ago. Mammoths used to be a common sight in North America and Eurasia. Many of our distant ancestors probably had regular face-to-face encounters with the elephant-like giants.The key to cloning the woolly mammoth is to replace the nuclei of egg cells from an elephant with those extracted from the mammoth’s cells. Doing this, according to the researchers, can result in embryos with the mammoth’s DNA. That has actually been known for a while.What have been missing are the woolly mammoth’s nuclei with undam aged genes. Scientists have been on a search for such nuclei since the late 1990s. Now it sounds like the missing genes may have been found.In the course, global warming may be responsible for the breakthrough. Warmer temperatures tied to global warming have melted ground in eastern Russia that is almost always permanently frozen. As a result, researchers have found a fair number of well-preserved frozen mammoths there, including the one that produced the bone marrow.Is it such a good idea, however, to clone animals that have long been extinct? For a while there has been some discussion of a real-life Jurassic Park setup containing such animals. Introducing these beasts into existing ecosystems could be like bringing in a potentially invasive species that would try to fill some space presently held by other animals. Even if the cloned animals were contained in special parks, there could still be a risk of spreading.So if the woolly mammoth is successfully cloned sooner rather than later, we’d probably be left with more questions and arguments than answers, at least in the short term.5. Which of the following would be the best title for the passage?A. How to clone a woolly mammothB. The woolly mammoth — an ancient speciesC. The research made by Russian and Japanese scientistsD. A woolly mammoth to be cloned6. Which of the following can be the key factor in cloning a mammoth?A. To find a living mammoth in North America or Eurasia.B. To use nuclei from a mammoth’s egg cells to replace the nuclei in an elephant’s egg cells.C. To find out when and where woolly mammoths lived on the earth.D. To find out if an cient mammoths are distant ancestors of today’s elephants.7. Which of the following best describes the writer’s attitude towards the future of cloning a mammoth?A. Uncertain.B. Indifferent.C. Positive.D. Disappointed.8. From the passage, we can learn that ________.A. some other extinct species have been cloned successfullyB. the mammoth used to be a very common speciesC. the clone of mammoths should be banned by lawD. a woolly mammoth will be successfully cloned this year二、语法填空（共10小题，每小题1.5分，共15分）Cloning has always been with us and is here to stay. It is a way of making ____1____ exact copy of another animal or plant. Cloning plants is straightforward while cloning animals is very complicated. The process of cloning is a difficult task ____2____(undertake). Many attempts to clone mammals failed. But finally the determination and patience of the scientists paid ____3____ in 1996 with a breakthrough-the cloning of Dolly the sheep.At first the fact ____4____ she seemed to develop normally was very encouraging. Then came the ____5____(disturb) news that Dolly had become seriously ill, which made cloning scientists cast down. Meanwhile, Dolly’s appearance raised a storm of ____6____(object) and had a great impact on the media and public imagination. ____7____(apparent) it became controversial. Although at present human egg cells and embryos ____8____(need)for cloning research are hard to obtain, newspapers wrote of evil leaders ____9____(hope) to clone themselves to attain their ambitions. Religious leaders also raised moral questions. Some countries reformed their legal systems and ____10____(forbid) research into human cloning, but others like China and the UK, continued to accumulate evidence of the abundant medical aid that cloning could provide.三、短文改错(共10小题，每小题1分，共10分）假定英语课上老师要求同桌之间交换修改作文, 请你修改你同桌写的以下作文。
人教版高二英语选修八 Unit2 cloning reading 课件 (共22张PPT)
17、一个人即使已登上顶峰，也仍要 自强不 息。2021/8/52021/8/52021/8/52021/8/5
谢谢观赏
You made my day!
我们，还在路上……
Then, came the news that Dolly became__se_r_io_u_s_l_y_il.l
Altogether Dolly lived__s_ix__a_n_d_a_h_a_l_f _y_ea_r_s__, half the length of the life of _th_e__or_i_g_in_a_l _s.heep
14、意志坚强的人能把世界放在手中 像泥块 一样任 意揉捏 。2021年8月5日星期 四2021/8/52021/8/52021/8/5
15、最具挑战性的挑战莫过于提升自 我。。2021年8月2021/8/52021/8/52021/8/58/5/2021
16、业余生活要有意义，不要越轨。2021/8/52021/8/5August 5, 2021
Para 4
The problem of Dolly
Para 5
The attitudes towards cloning
What’s the writing style?
A. Expositive(说明性的) B. Argumentative（议论性的） C. Narrative（叙事性的） D. Descriptive（描写性的）
The word “controversial” in paragraph 4 probably means____________. A. complicated B. arguable C. important
Para 5 People’s reaction to cloning
人教英语选修八Unit2Cloning教案1
Unit 2 CloningThe First Period ReadingTeaching goals1. Target languagea. 重点词汇和短语clone, commercial, producer, undertake, arbitrary, object, forbid, accumulate, cast down, object to, the media, in favour ofb. 重点句子It is a way of...The fact is that...The question that occurred ...2. Ability goalsEnable the students to describe cloning: What is the advantages of cloning？What is the problems or dangers of cloning？What is your opinion of cloning？3. Learning ability goalsHelp the students learn how to describe cloning.Teaching important pointsHow to describe cloning.Teaching difficult pointsHelp the students analyze the writing techniques of the article.Teaching methodsSkimming, task-based method and debate method.Teaching aidsA recorder, a projector and some slides.Teaching procedures && waysStep I Lead-inThis topic is difficult for students. So teacher should help the students learn more about it. Do this in the way of asking and answering questions.T: You can imagine how rapidly the modern science and technology develop. I think most of you must know something about space traveling, submarine exploration, robot, maglev train, gene engineering etc. But in recent years, a hot topic, cloning is often mentioned, especially when the cloning Dolly the sheep appeared. You may have first heard of cloning when Dolly the Sheep showed up on the scene in 1997. Cloning technologies have been around for much longer than Dolly, though. First thing first, what is cloning and a clone? The dictionary says cloning is the technique of producing a genetically identical duplicate of an organism. A clone is said to be all descendants derived asexually from a single individual, as by cuttings, bulbs, by fission, by mitosis, or by parthenogenesis reproduction. It sounds very different andcomplicated to us. In fact, I mean, in our daily life, this happens often. For example, gardeners take cuttings from growing plants to make new ones. You often see that your mother picks a small branch from a growing plant to make a new one. If she likes this kind of flowers, she can do cloning. Cloning also happens in animals or human beings when twins identical in sex and appearance are produced from the same original egg. The fact is that cloning plants is straightforward but the cloning of animals is more complicated. The possibility of human cloning, raised when Scottish scientists at Roslin Institute created the much-celebrated sheep “Dolly”, aroused worldwide interest and concern because of its scientific and ethical implications. You can give your questions if you are interested in this topic. I am here today one of the scientists who work in this field. I am ready to answer any of your questions.S: Now we know what is cloning. Are there different types of cloning?T: When the media report on cloning in the news, they are usually talking about only one type called reproductive cloning. There are different types of cloning however, and cloning technologies can be used for other purposes besides producing the genetic twin of another organism. A basic understanding of the different types of cloning is key to taking an informed stance on current public policy issues and making the best possible personal decisions. The following three types of cloning technologies will be discussed: (1) recombinant DNA technology or DNA cloning, (2) reproductive cloning, and (3) therapeutic cloning.S: Was Dolly created by what cloning? And why was Dolly so important?T: Reproductive cloning is a technology used to generate an animal that has the same nuclear DNA as another currently or previously existing animal. Dolly was created by reproductive cloning technology. She was the first mammal to be cloned from adult DNA taken from an adult cell. Previously, animals had only been cloned using embryo cells which already have the potential to become a complete embryo in its own right. The big breakthrough with Dolly was to make a clone from an ordinary, adult cell —in this case from a female goat’s udder.S: Have you seen Jurassic Park? In this feature film, scientists use DNA preserved for tens of millions of years to clone dinosaurs. They find trouble, however, when they realize that the cloned creatures are smarter and fiercer than expected. Could we really clone dinosaurs?T: In theory? Yes. What would you need to do this? A well-preserved source of DNA from the extinct dinosaur, and a closely related species, currently living, that could serve as a surrogate mother. In reality? Probably not. It’s not likely that dinosaur DNA could survive undamaged for such a long time. However, scientists have tried to clone species that became extinct more recently, using DNA from well-preserved tissue samples.More questions about cloning are given in the appendix. The information above is for reference only. Or you can choose several students and ask them to act out a short play whose main topic is as follows:An old man who was dying left all his fortune to his own son. But he did not know that his son was cloned. So two same young men both claimed that they were the old man’s son. They quarreled and fought with each other; at last they went to the judge.The judge let them check DNA. The result was that their DNA was the same. Now even the judge did not know what to do.In this part the teacher can give the students some advice to act out. According to this play teacher ask the students several questions:1. Do you want to be cloned or not? Why?2. If you are the judge what will you do?3. Can you tell me the advantages of cloning?4. And what is the disadvantage?DiscussionIn this part the students will discuss the relationship between the development of technology and social customs.T: As the technology develops day by day, it has a more and more important influence on the whole society. Technology affects social customs and ethics, sometimes technology may go against the conventional thinking, then comes the problem that whether we should stop the development of research or change the ethics.S1: As technology develops in almost every field, a lot of our original customs and ethics changed, either because they are out of time or not so scientific. For example millions of years ago human ate meat of animals without heating them. Later people used fire and no longer ate raw meat and they also used fire to scare dangerous animals.S2: I think we could not stop the development of technology, for it may develop in the way which is acceptable by social customs.…Look at picturesT: Look at the pictures and discuss which ones are natural clones and which ones are man-made. Then explain how they differ.S: I think the twins are natural clones and the Dolly sheep is man-made.T: You are right! Can you explain how they differ?S: The twins were born at the same time, but the Dolly sheep is man-made.T: Anything else? Who want have a try?S: I think the identical dog is man-made.T: Good job!Step Ⅱ Pre-readingBefore class, ask the students to search for some information about this topic. Now show your questions on the screen, and then let them discuss with each other.T: Now please work in pairs and discuss about cloning. Then list the questions you want to find out. Share your list with your partner.Ss: Yes, sir / madam.Questions about cloning:1. What is a clone?2. How is a clone produced?3. What benefits can humans gain from cloning?4. What problems may arise when humans are cloned?5. Should we clone human?6. Could cloning replace sex as the means of creating new human life?7. Could a parent clone a child who is dying of a terminal illness?After a few minutes.T: Do you have other questions? V olunteer!S: I have! What is the writer’s o pinion?T: Good job! I think many of you have questions, now let us read the article with the questions.Suggest answers:1. It is a way of making an exact copy of another animal and plant.2. This happens in plants when gardeners take cuttings from growing plants to make new ones, and when small parts of a plant are taken and gown in a laboratory. It also happens in animals when twins identical in sex and appearance are produced from the same original egg.3. It can help cure disease and can help couples who have no baby to bear a new baby.4. There may be more bad people like Hitler.5. In my opinion, I do not agree, for it may cause many moral problems.6. No. Because cloned human has the same quality as the real human, natural born baby’s quality is hig her than his parents.7. No. The cloned baby also has the disease.Step Ⅲ While-readingGet the students to comprehend the passage quickly and accurately and meanwhile help the students form a good habit of reading.T: Have you got the answers of your questions? Now please skim the passage fast to obtain a general understanding of the whole passage. While reading, divide the whole passage into several parts and find out the main idea of each part.Show the following.Para. 1 Cloning is a way of making an exact copy of another animal and plant. Para. 2 Cloning has two major uses.Para. 3 The problems of Dolly.Para. 4 The effect of Dolly.Para. 5 It is forbidden to clone human being.Step Ⅳ Post-readingAsk the students to read the passage again to finish three tasks.T: Now let’s listen to the tape. While listening, pay more attention to the correct pronunciation and tone. Then read the text by yourselves to get the answers to the three tasks. You can work in groups.T: First, what are the problems or dangers of cloning?S: Let me have a try! First, the cloned animals have the same illness of the old animals and the same goes with the other species. Second, the cloned animals have short life and can cause moral questions.T: You are right! And what are the advantages of cloning?S: I know! Firstly, gardeners use it all the time to produce commercial quantities of plants.Secondly, it is valuable for research on new plant species and for medical research on animals. Thirdly, it suddenly opens everyone’s eyes to the possibility of using cloning to cure serious illnesses, and even producing human beings.T: What is the writer’s opinion? What do you think is the writer’s point of view in t his reading passage? Is it in favour of cloning or against it?S1: I think the writer is in favour of it, because there are many advantages of cloning. It can help people solve many problems in our daily life.S2: I think the writer doesn’t agree with it, because if the cloning technology can be used in an evil way, it can cause much trouble to our society.T: The next question: What is your opinion of cloning? Give the reasons.S1: As a coin has two sides, everything has two aspects. First, if the cloning is used in a correct way it can bring many conveniences to us. Such as: curing serious illnesses and being used to produce commercial qualities of plants. On the other hand, if the cloning is used in an evil way it can cause much troubles: such as moral questions.S2: My view on cloning and nuclear transfer is that it is ethical. So actually I find no reason to clone presently. I have this opinion currently, because scientists are unable to successfully clone using nuclear transfer as of today.S3: I also have a problem with the possible effects of using nuclear transfer on a large scale. This is because I fear that cloning could greatly reduce genetic diversity. I believe if we were to interfere with the genetic diversity of an entire population we would undoubtedly fail.S4: As you can see I believe cloning using nuclear transfer should not be used on humans for any reason. I think if we were to use cloning it should be closely monitored as to what dangers are involved in having copies of people. I also think this technology should not be used until success.S5: I agree that we should develop cloning. I’m not afraid of cloning Hitlers or excited to clone Einsteins. I would say the time and the environment produced Hitler, not his DNA. So you do not need DNA from Hitler to produce a Hitler. In fact, there are Nazis already present. We should make use of cloning to benefit future generations. You can imagine that how happy the people are if they can recover from the serious illness or get back the son who has just lost his life in an accident by cloning.T: Good job! Yes, if we our human beings use the scientific technology properly it can bring many advantages to us!S: Why did Dolly’s appearance raise a storm of objections and have a great impact on the media and public imagination?T: Because nothing really prepared the world for the 1997 announcement that a group of Scottish scientists had created a cloned sheep named Dolly. Many folks believe that within the next decade, we will hear a more shocking announcement of the first cloned human. Scientists in South Korea have already created human embryonic stem cells through cloning. Until now, the idea of human cloning has only been possible through movie magic, but the natural progression of science is making human cloninga true possibility. We’ve cloned sheep, mice and cows, so why not humans? Some countries have set up laws banning cloning, but it is still legal in many countries. Imagine using a piece of your great-grandmother’s DNA to create a clone of he r. In a sense, you could be the parent of your great-grandmother. This opens the door to many ethical problems, but it’s a door that could soon be opened.S: So what happens next?T: Whatever the reasons, the new cloning technologies have sparked many ethical debates among scientists, politicians and the general public. Several governments have considered or enacted legislation to slow down, limit or ban cloning experiments outright. It is clear that cloning will be a part of our lives in the future, but the course of this technology has yet to be determined. Cloning could cause birth defects, but it’s not going to change society. In the absence of any legislation or regulation, cloning attempts will quietly continue. Eventually, cloning will succeed (if it hasn’t happened already), and humankind will have taken another step down the road of biological engineering. You young students are the future of the world. You should study hard today, and you will be able to face this difficult problem and know how to deal with it. ExplanationHomeworkAsk the students to do the following.1. Complete the exercises on page 13.2. Recite the key sentences in the text.3. What is Clone? You might not believe it, but there are human clones among us right now.Have you ever wished you could have a clone of yourself to do homework while you hit the skate park or went out with your friends? Imagine if you could really do that. Where would you start?。
2014版英语复习方略课件(人教版通用)：选修8 Unit 2 Cloning
1. 同义句转换
(1) Smoking is not allowed in public places.
forbidden in public places. =Smoking is _________
(2)He only asked us our names.
merely asked us our names. =He ______ (3)The brothers have widely different tastes. differ ______ widely __ in their tastes. =The brothers _____
Ⅳ. 语篇完形 exact copy of another Cloning is a way of making an 1. _____
animal or plant. Cloning has two major uses. Firstly, it can be commercial quantities of plants. Secondly, used to produce 2. ___________
have/take/make an objection to (doing) sth. 对(做)某事表示反对 raise an objection to sth. 对某事提出异议 (3)objective adj. 真实的, 客观的, 无偏见的
object __ to _______ making loud noises in public places. ①People ______ 人们反对在公共场所大声喧哗。 object __ to _____ being _______ treated like this. ②We ______ 我们抗议这种待遇。 ③Have you any objection to my asking a private question? 我问你一个私人问题你反对吗？