人教版高中英语课件：Unit2 Reading Cloning Where is it leading us
高中英语 Unit 2 Cloning Section Warming Up ampReadingPrereading教学案
Unit 2 Cloning Section Ⅰ Warming Up &；Reading-Pre-readingHave you ever wished you could have a clone of yourself to do your homework while you went out to play with your friends? Imagine if you could really do that, where would you start?What exactly is cloning?Cloning is a way of making an organism (有机体) that is an exact genetic (基因的) copy of another. This means that every single bit of DNA is the same between the two!You might not believe it, but there are human clones among us right now. They weren't made in a lab, though. They're identical (同样的) twins, created naturally. Below, we'll see how natural identical twins relate to modern cloning technologies.How is cloning done?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.How does one go about making an exact genetic copy of an organism? There are a couple of ways to do this：artificial embryo twinning (人工胚胎双生) and somatic cell nuclear transfer (体细胞核移植). How do these processes differ?1．Artificial Embryo TwinningArtificial embryo twinning is the relatively lowtech version of cloning. As the name suggests, this technology mimics the natural process of creating identical twins.2．Somatic Cell Nuclear TransferSomatic cell nuclear transfer (SCNT), uses an approach different from artificial embryo twinning, but it produces the same result: an exact clone，or a genetic copy, of another. This was the method used to create Dolly the sheep.Section_ⅠWarming Up & Reading —Prereading[原文呈现] [读文清障]CLONING：WHERE IS IT LEADING US?Cloning has always been with us and is here to stay. It is a way of making an exact①①exact/Iɡ'zækt/adj.精确的；准确的②make a copy of (＝copy)复制of making ...作way的定语。
高中英语 Unit 2 Cloning reading cloning where is i
推理判断
5. The sheep that donated the somatic cell most probably lived ____ years. A. 3 B. 6 C. 12 D. 13
6. Which of the following is not an advantage of cloning?
Cloning is a way of making ane_x_ac_t_c_op_y
of another animal or plant _n_at_u_ra_lly_ or artificially from the cells of another animal or plant.
It is forbidden to clone human beings. The problems of Dolly. Cloning has two major uses. The effect of Dolly. Cloning is a way of making an exact copy of another animal and plant.
1). The main idea of the text is____ A. animal cloning is very valuable and can benefit the world. B. animal cloning could be misused by bad people so it must be forbidden C. animal cloning is well developed because Dolly the sheep was born. D. animal cloning raised arguments and scientists are not sure about its future.
高中英语-Unit2《Cloning》课件-Reading-新人教版选修8
Pre-reading
In pairs discuss what you understand about cloning. Then list the questions you want to find out. Share your lists with one another.
one C. usually dies earlier than the original one D. is usually as healthy as the original one
第二十八页，共63页。
7. What is people's fear about human cloning? Which of the following is wrong?
第三十一页，共63页。
9. Which of the follow is NOT a problem or danger of cloning mentioned in the text?
A. Evil leaders may want to clone themselves.
B. Animal clones may develop the illness of older animals and may die younger than the donor animals.
2) It can help infertile people have babies.
第十八页，共63页。
4. What problems may arise when humans are cloned?
1) People may want to clone themselves so they can live forever.
Where is it leading us？说课稿
Where is it leading us？说课稿
Unit2Cloning
Whereisitleadingus?说课稿
一：说教材
（一）教学内容分析
本单元以cloning为话题，旨在通过单元教学，使学生了解克隆技术的优缺点，学会表达和支持个人观点，能用所学的有关cloning的词汇去表述自己对这一新技术的观点和看法。
这是一篇说明文。
对于高二的学生来说，学习的难度较大。
（二）教学目标
1.语言知识目标：
A）使学生会使用本单元的相关词汇讲述克隆的概念，以及克隆带来的问题，及表达自己对克隆的认识。
B）初步掌握本单元重点词汇：
heretostay;identical;straightforward;undertakesth;castdown等。
2.语言技能目标：
a)使学生学会克服生词障碍，通过略读，寻找文章的主题句，理清文章的总体框架与脉络；通过查读，捕捉文章的重要细节，理解作者的写作意图。
b)使学生学会运用各种猜词技巧，猜测部分生词在具体的语言环境的含义 3.情感态度与文化意识目标：
通过对本文的学习，唤起学生对生活的关注，知道克隆的重要意义，以及克隆技术可能的利与弊，激发学生热爱科学的热情。
（三）教学重点和难点：。
高中英语 Unit2 Reading课件 新人教选修8
What is cloning ?
Cloning is a way of making an exact copy of another animal and plant.
Para 2 The major uses and procedures of cloning
1. Translate the procedure of cloning Dolly the sheep into Chinese. 2. Finish Ex.1,2,3, Page12.
1996 cloning sheeps
2001 cloning cattle
我国成功繁殖克隆兔 体形要比普通兔大许多
3 Some countries will use cloning in a wise way.
The writer’s attitude towards cloning
A. Objective (be fair) B. Negative (be against it) C. Positive (be in favor of it)
•
Para 3 The problems of Dolly
At first, the fact that Dolly developed _no_r_m_a_ll_y in a natural way was _e_nc_o_u_ra_g_in_g__.
Later, the news __th_a_t _she lived for six years, half the length of the life of the _o_rg_in_a_l _ one was _d_i_st_u_rb_in_g___.
（完整版）人教版高中英语选修8课文及翻译
（完整版）⼈教版⾼中英语选修8课⽂及翻译⼈教版⾼中英语选修8 课⽂及翻译选修8 Unit 1 A land of diversity-ReadingCALIFORNIACalifornia is the third largest state in the USA but has the largest population. It also has the distinction of being the most multicultural state in the USA, having attracted people from all over the world. The customs and languages of the immigrants live on in their new home. This diversity of culture is not surprising when you know the history of California.NATIVE AMERCANSExactly when the first people arrived in what we now know as California, no one really knows. However, it is likely that Native Americans were living in California at least fifteen thousand years ago. Scientists believe that these settlers crossed the Bering Strait in the Arctic to America by means of a land bridge which existed in prehistoric times. In the 16th century, after the arrival of the Europeans, the native people suffered greatly. Thousands were killed or forced into slavery. In addition, many died from the diseases brought by the Europeans. However, some survived these terrible times, and today there are more Native Americans living in California than in any other state.THE SPANISHIn the 18th century California was ruled by Spain. Spanish soldiers first arrived in South America in the early 16th century, when they fought against the native people and took their land. Two centuries later, the Spanish had settled in most parts of South America and along the northwest coast of what we now call the United States. Of the first Spanish to go to California, the majority were religious men, whose ministry was to teach the Catholic religion to the natives. In 1821, the people of Mexico gained their independence from Spain. California then became part of Mexico. In 1846 the United States declared war on Mexico, and after the war won by the USA, Mexico had to give California to the USA. However, there is still a strong Spanish influence in the state. That is why today over 40 of Californians speak Spanish as a first or second language. RUSSIANSIn the early 1800s, Russian hunters, who had originally gone to Alaska, began settling in California. Today there are about 25,000 Russian-Americans living in and around San Francisco.GOLD MINERSIn 1848, not long after the American-Mexican war, gold was discovered in California. The dream of becoming rich quickly attracted people from all over the world. The nearest, and therefore the first to arrive, were South Americans and people from the United States. Then adventurers from Europe and Asia soon followed. In fact, few achieved their dream of becoming rich. Some died or returned home, but most remained in California to make a life for themselves despite great hardship. They settled in the new towns or on farms. By the time California elected to become thethirty-first federal state of the USA in 1850, it was already a multicultural society.LATER A RRIVALSAlthough Chinese immigrants began to arrive during the Gold Rush Period, it was the building of the rail network from the west to the east coast that brought even larger numbers to California in the 1860s. Today, Chinese-Americans live in all parts of California, although a large percentage have chosen to stay in the "Chinatowns" of Los Angeles and San Francisco. Other immigrants such as Italians, mainly fishermen but also wine makers, arrived in California in the late 19th century. In 1911 immigrants from Denmark established a town of their own, which today still keeps up their Danish culture. By the 1920s the film industry was well established in Hollywood, California. The industry boom attracted Europeans including many Jewish people. Today California has the second largest Jewish population in the United States.Japanese farmers began arriving in California at the beginning of the 20th century, and since the 1980s a lot more have settled there. People from Africa have been living in California since the 1800s, when they moved north from Mexico. However, even more arrived between 1942 and 1945 to work in the ship and aircraft industries. MOST RECENT ARRIVALS In more recent decades, California has become home to more people from Asia, including Koreans, Cambodians, Vietnamese and Laotians. Since its beginning in the 1970s, the computer industry has attracted Indians and Pakistanis to California. THE FUTUREPeople from different parts of the world, attracted by the climate and the lifestyle, still immigrate to California. It is believed that before long the mix of nationalities will be so great that there will be no distinct major racial or cultural groups, but simply a mixture of many races and cultures.GEORGE’S DIARY 12TH—14TH JUNEMonday 12th, JuneArrived early this morning by bus. Went straight to hotel to drop my luggage, shower and shave. Then went exploring. First thing was a ride on a cable car. From top of the hill got a spectacular view of San Francisco Bay and the city. Built in 1873, the cable car system was invented by Andrew Hallidie, who wanted to find a better form of transport than horse-drawn trams. Apparently he'd been shocked when he saw a terrible accident in which a tram's brakes failed, the conductor could not control the situation and the tram slipped down the hill dragging the horses with it. Had a late lunch at Fisherman's What. This is the district where Italian fishermen first came to San Francisco in the late 19th century and began the fishing industry. Now it's a tourist area with lots of shops, sea food restaurants and bakeries. It's also the place to catch the ferry to Angel Island and other places in the Bay.Did so much exploring at Fisherman's What. Am exhausted and don't feel like doing anything else. Early bed tonight! Tuesday 13th, JuneTeamed up with a couple from my hotel (Peter and Terri) and hired a car. Spent all day driving around the city. There's a fascinating drive marked out for tourists. It has blue and white signs with seagulls on them to show the way to go. It's a 79km round-trip that takes in all the famous tourist spots. Stopped many times to admire the view of the city from different angles and take photographs. Now have a really good idea of what the city's like.In evening, went to Chinatown with Peter and Terri. Chinese immigrants settled in this area in the 1850s. The fronts of the buildings are decorated to look like old buildings in southern China. Saw some interesting temples here, a number of markets and a great many restaurants. Also art galleries and a museum containing documents, photographs and all sorts of objects about the history of Chinese immigration, but it is closed in the evening. Will go back during the day. Had a delicious meal and then walked down the hill to our hotel.Wednesday 14th, JuneIn morning, took ferry to Angel Island from the port in San Francisco Bay. On the way had a good view of the Golden Gate Bridge. From 1882 to 1940 Angel Island was a famous immigration station where many Chinese people applied for right to live in USA. The cells in the station were very small, cold and damp; some did not even have light but the immigrants had nowhere else to go. Their miserable stay seemed to be punishment rather than justice and freedom to them. They wrote poems on the walls about their loneliness and mourned their former life in China. In 1940 the civil authorities reformed the system so that many more Chinese people were able to grasp the opportunity of settling in the USA. Made me very thoughtful and thankful for my life today.选修8 Unit 2 Cloning-ReadingCLONING: WHERE IS IT LEADING US?Cloning has always been with us and is here to stay. It is a way of making an exact copy of another animal or plant. It happens in plants when gardeners take cuttings from growing plants to make new ones. It also happens in animals when twins identical in sex and appearance are produced from the same original egg. The fact is that these are both examples of natural clones.Cloning has two major uses. 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. Cloning plants is straightforward while cloning animals is very complicated. It is a difficult task to undertake. Many attempts to clone mammals failed. But at last the determination and patience of the scientists paid off in 1996 with a breakthrough - the cloning of Dolly the sheep.The procedure works like this:On the one hand, the whole scientific world followed the progress of the first successful clone, Dolly the sheep. The fact that she seemed to develop normally was very encouraging. Then came the disturbing news that Dolly had become seriously ill. Cloning scientists were cast down to find that Dolly's illnesses were more appropriate to a much older animal. Altogether Dolly lived six and a half years, half the length of the life of the original sheep. Sadly the same arbitrary fate affected other species, such as cloned mice. The questions that concerned all scientists were: "Would this be a major difficulty for all cloned animals? Would it happen forever? Could it be solved if corrections were made in their research procedure?"On the other hand, Dolly's appearance raised a storm of objections and had a great impact on the media and publicimagination. It became controversial. It suddenly opened everybody's eyes to the possibility of using cloning to cure serious illnesses and even to produce human beings.Although at present human egg cells and embryos needed for cloning research are difficult to obtain, newspapers wrote of evil leaders hoping to clone themselves to attain their ambitions. Religious leaders also raised moral questions. Governments became nervous and more conservative. Some began to reform their legal systems and forbade research into human cloning, but other countries like China and the UK, continued to accumulate evidence of the abundant medical aid that cloning could provide. However, scientists still wonder whether cloning will help or harm us and where it is leading us.克隆⼀直在我们左右并且已经被⼤多数⼈接受。
高中英语《Unit2 Cloning》优质课教案、教学设计
Unit 2 CloningReading: Cloning:Where is it leading us?教学设计Teaching aims :(1).To learn the basic knowledge of cloning(2).To practice some reading skills and improve students' language competence in English(3). To enrich the knowledge of cloning by some extensive learningStep1 : Leading in : Watching a video of Su Wukong first.Ask and answer:Teacher: Do you think what he did in the video is related to cloning today? Students: Yes, I think so.Teacher: Ok, let’s begin our trip of cloning.Step2: Fast reading: skim the text quickly and match the main idea of each paragragh.para.1 A.Cloning has two major usespara.2 B.cloning is a way of making anexact copy of another animal or plantpara.3 C. It is forbidden to clone human beingpara.4 D.The effect of Dollypara.5 E.The problems of DollyThe key: BAEDCStep3: Careful reading1.let’s get a further understanding about the procedure of cloning .2.Have a discussion: Is cloning bad or good?Step4: Further discussion:Where is cloning leading us?(Give students enough time to prepare this question and encourage them to express themselves freely)Step5:SummaryNo matter where cloning is leading us ,we must spare no effort to develop this technology in the way that can benefit our human beings a lot and make our life become better and better.pe ral thful to Our Original Aspiration and Continue Mørcbłng Fozwazd。
高中英语《unit 2 Cloning Reading and Comprehending》优质教学课件
•Therearemoral_objectionsto cloninghuman beings.
We can conclude
A. Cloning is good for us. B. Cloning has two aspects. C.If cloning is used in a correct way it can
Careful Reading
Read the text in details
Para 1 The definition of cloning
(1min )
What is cloning ?
Cloning is a way of making an exact copy of another animal and plant.
C. Many countries will use cloning in a wise way
D. All the research into human beings will be forbidden
Practice activity: Debate
Are you in favor of cloning or against cloning? State your point
bring many convenience to us. D.If cloning is used in an evil way it can
cause much trouble.
• As a coin has two sides, everything has two aspects. On one hand, if cloning is used in a correct way it can bring many convenience to us. On the other hand, if cloning is used in an evil way it can cause much trouble. Therefore, we should use cloning in a correct way.
高中英语 优质课教案选修八第1单元教案
优质课教学教案（选修八第二单元）Topic Unit 2 Reading Cloning: where is it leading us?Teaching aims 1. Knowledge aim: Explain how cloning works in mammals.2. Ability aim: Find out the main idea of each paragraph.3. Emotional aim: Some of the issues that arise from this and whether it is necessary to let cloning exist.Key points 1. Find out the main idea of each paragraph.2. Judge what natural clone is and what man-made clone is.Difficult points 1. Explain how cloning works in mammals.2. Discuss the problems and advantages of cloning.Teaching aids: 1. A projector 2. A tape recorder 3. Multimedia 4. The blackboardTeaching methods 1. Question-and-answer teaching method2. Watch-and-listen activity3. Free discussion methodTeaching stepsTeacher Students PurposeStep I lead-inShow picture on thescreen, ask the student toanswer my questions.Step II Warming upGive the definition ofnatural clone and man-madeclone, and then show thepictures on the screen.Step III ReadingPlay the radio; show thequestions to the students.Step IV Intensive readingGive them a topic to findthe problems and advantagesof clone.Step V DiscussionPut forward a question:which is easier to clone, plantor animal? And then explainwhy so.Talk about the pictures,pay attention to wordclone.Judge what naturalclone is and whatman-made clone is.Find out the main ideaof each paragraph, andanswer the questions.Fill in the chart on Page12 using the informationfrom the text.Look carefully at thescreen and know moreabout the procedures ofcloning.Lead in the topic of thisperiod--cloning.Let students know what theywill learn in the text.Learn to analyze the wholetext and get more informationof clone.To do an intensive readingand check whether theycomprehend the whole text.Explain how cloning worksin mammals.(Take Dolly the sheep forexample. )Homework 1. Translate the procedure of cloning Dolly the sheep into Chinese.2. Finish Ex.1, 2, 3, Page12.Blackboard designUnit 2 cloningReading Cloning: where is it leading us?Natural problem/dangers advantages Clone become ill cure illnesses Man-made die younger commercial uses an egg cell more evil leaders save endangered animals an somatic cell raise moral questions medical research an embryothe donated cellEvaluation。
2017-2018学年高中英语Unit2CloningSectionⅠWarmingUpReading-Pre-reading课件新人教版选修8
2．Read the text and then find the main idea of each paragraph. (1)Paragraph 1 ( D ) A．The effect of Dolly. (2)Paragraph 2 ( B ) B．The major uses of cloning. (3)Paragraph 3 ( E ) C．People’s reaction to cloning. (4)Paragraph 4 (A ) D．The definition (定义) of cloning. (5)Paragraph 5 ( C ) E．The problem of Dolly.
Warming Up
1．How much do you know about clone? What is clone? And what
are natural clone and man-made clone? _C_l_o_n_e_i_s_a__w_a_y__o_f_m__a_k_i_n_g_a_n__e_x_a_c_t_c_o_p_y__o_f_a_n_o_t_h_e_r_a_n_i_m__a_l _o_r _p_l_a_n_t.________________________________________________ _N_a_t_u_r_a_l__c_lo_n_e__i_s__o_n_e__th__a_t _o_c_c_u_r_s__f_r_o_m__t_h_e__“_p_a_r_e_n_t_”__in___a _n_a_t_u_r_a_l _fo_r_m__o_f__c_lo_n_i_n_g_w__it_h_o_u_t_h__u_m_a_n__h_e_l_p_. ______________ _M__a_n_-_m_a_d_e___c_l_o_n_e___i_s___o_n_e___p_r_o_d_u_c_e_d____th_r_o_u_g_h____h_u_m__a_n _in__te_r_v_e_n_t_io_n__(介___入__)．_