高中英语人教版选修8Unit2 Reading
Growing new plants
Twins
They are born naturally and identical in sex and appearance.
Monkey King
In 1996, a sheep called Dolly was born. It is the first mammal to be cloned. It is considered to be the greatest success in the development of cloning.
2. The __u_s_es__ and _p_r_o_ce_d_u_r_e_s of cloning. 3.The __p_r_o_b_le_m__s_ of Dolly (the ___b_ir_t_h___ and __d_e_a_t_h__ of Dolly). 4. The _i_m_p_a_c_t______ of Dolly. 5. People’s _r_ea_c_t_io_n_/_a_tt_it_u_d_e_s to cloning.
plants.
commercial
F 3 Cloning animals is as complicated as cloning plants. 4 Dolly the sheep was themfoirrset(s…utchcaens…s)ful clone of a
T mammal. 5 Natural clone happen in animbarlesaaktshwroeulgl has in plants.
Two kinds of clones:
Warming up
Natural clone is one that occurs in a natural form of cloning without human’s help.
Man-made
clone
is one that is produced through human intervention(介入) .
卵细胞 细胞核
体细胞 胚胎
Fast reading
Read the text quickly. (3 min) Underline or circle something you think is important.
Main idea
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.
research on animals. But through the __b_ir_t_h_ and death of
Dolly, cloning has a lot of problems. On the other hand, we
know cloning is controversial in some countries for
T
Discussion
Is cloning good or bad for us ?
Advantages
Disadvantages
Group 1 and 2
Group 3 and 4
Brainstorming Is cloning good or bad?
Advantages
Disadvantages
D. Too much cloning may lead to the destruction of the balance of nature.
Inferencing
6. What about the writer’s attitude toward cloning in this passage?
Consolidation Clone is a way of making an exact _c_o_p_y of another animal or
plant. Cloning have two _m__a_jo_r_ uses. Firstly, gardeners use it all the time to produce _c_o_m_m__e_r_ci_a_l quantities. Secondly, it is valuable for research on new plant _s_p_e_c_ie_s_ and for medical
A. The writer is against cloning. B. The writer is in favor of cloning. C. The writer does not state any personal opinion
about cloning. D. The writer is in agreement with cloning.
1. Medical cloning could produce cures 1. Animal clones may develop the
for serious illness.
illnesses of older animals.
2. Cloning plants can produce plants of 2. Animal clones may die younger than
How does Dolly differ from other sheep? She was cloned while the others were born naturally.
The following are some photos about cloning. See how much you know about it.
__m__o_r_al__and _r_e_li_g_io_u_s reasons.
T or F
F 1 Cloning means making a copy of an animal or a
plant.
exact … another
T 2 Gardeners can make a lot of money by cloning
“straightforward” means ____.
A. uncomplicated B. honest
C. frank
D. difficult
5. Which of the follow is NOT a problem or danger
of cloning mentioned in the text? Details
Careful reading
Read the text carefully. Answer some questions.
Details
1. The cloning of Dolly the sheep succeeded because_B___.
A. its easier to clone a sheep than other animals B. the scientists were determined and worked hard with patience C. the scientists were rewarded and got lots of money D. many other attempts to clone mammals failed
similar quality for sale.
the donor animals.
3. Cloning plants can be useful for
3. Leaders may want to clone themselves.
research on new plants.
4. It is cruel to animals.
4. May bring extinct animals back to life
…
5. It can weaken the species.
…ห้องสมุดไป่ตู้
5 minutes
Homework 1.Write a short passage according to the following topic. Should human cloning be allowed?
2001 cloning cattle
2002 cloning cats
2002 cloning rabbits
2003 Cloning horse
The Cloning Fluorescent pig (left) and the normal pig (right)
2005 Cloning dogs
Unit2 Reading
Had him cloned?
What is a clone?
A clone is group of cells or organisms that are genetically identical and have been produced asexually (无性生殖/繁殖) from the same original cell. They include natural and man-made clones.
A strawberry plant
人教版高中英语选修8全册教案
选修8黎巨森、蒋茹、罗培芳、罗丽霞Unit 1 A land of diversityPeriod 1 ReadingTeaching goalsEnable the students to talk about things about the USA.Help the students learn the huge diversity of races and cultures in America, especially in California.Teaching important and difficult pointsLearn the huge diversity of races and cultures in California.Teaching methodsFast and careful reading; asking and answering activity; individual, pair or group work. Teaching aidsA map, a blackboard and a computerTeaching proceduresStep 1 Warming up.Ask the students to describe what they learn about the USA.Ask the students to tell things about California including its location, size, population, economy, history etc. What do you learn about CaliforniaShow the students some pictures and encourage students not only to say what each picture is about but how each one relates to California.Step 3 Fast readingRead through the passage and get the main idea.Reading comprehension.Ask the students the following questions:When you look at the title, what so you think of2) Why is the USA called a melting potStep 4 Detail readingBeside each cultural group , write the period in which they first came to California in large numbers.Step 5 After readingWhy is California in the 21st century such a multicultural community (Using 3 or 4 sentences to explain. )Step 6 HomeworkFinish “Learning about language〞on page 4.Period 2 Extensive ReadingTeaching aims: 1. Improve Ss’ ability of reading2. 德育目的：理解美国多元文化，进一步培育学生跨文化交际意识，为终身学习奠定良好根底。
人教英语选修8Unit 2 Section Ⅰ
B．Dolly’s serious disease and final death disturbed the whole world
C．Dolly successfully cloned a new lamb with the help of cloning scientists
D．there were arguments about animal cloning and concerns about the future of
B．Cloning has two major uses.
C．Cloning is used by researchers to develop new plants.
英 语
D．Animal cloning is much more difficult than plant cloning.
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这对双胞胎的 T 恤颜色不同。
语
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Unit 2 Cloning
单句语法填空
①French differs __f_ro_m____ English in this respect. ②The two squares differ ____in____ color but not __i_n___ size.
years.
A．3
英
语 必 修
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Unit 2 Cloning
4．We can infer from the last three paragraphs that __D____ .
高中英语人教版选修8翻译课文翻译
英语选修8 翻译Unit1 一个多元文化的国家加利福尼亚是美国的第三大州，而且是人口最多的州。
加州与众不同之处在于它也是美国最具多元文化的一个州，它吸引了来自世界各地的人们。
这些移民的风俗习惯以及语言在他们的新家都得以延续。
当你了解了加利福尼亚的历史后，你就不会对此感到惊讶了。
美洲土著人最早的一批人具体是在什么时候来到我们现在所知道的加利福尼亚地区的，谁也说不清楚。
然而，很可能至少在15 ,000年以前美洲土著人就住在加利福尼亚了。
科学家们认为，这些迁居者通过一条史前时代曾经存在的大陆桥穿越北极地区的白令海峡到达美洲。
欧洲人在16世纪来到这儿后，土著人遭受了极大的苦难，成千上万的人被杀害或被迫成为奴隶。
此外，欧洲人带来了疾病，使许多人染病而死，不过，还是有一些人在经历了这些恐怖时期后活下来了。
今天住在加利福尼亚的美洲土著人比任何其他州的都要多。
西班牙人在18世纪的时候，加利福尼亚是由西班牙统治的西班牙士兵最早是在1 6世纪初期来到南美洲的，他们同土著人打仗，并夺去了他们的土地。
两个世纪以后，西班牙人在南美洲的大部分地区定居下来，而且还在我们现在称之为美国的西北沿海地区住下来。
在首批移居加州的西班牙人中，大部分是宗教人士，他们的职责是向原住民传授天主教。
1821年，墨西哥人从西班牙获得了独立-加利福尼亚于是成了墨西哥的一部分。
1846年美国向墨西哥宣战，美国赢得战争胜利后，墨西哥被迫把加利福尼亚割让给美国。
但是，这个州至今仍然保留着很强的西班牙的影响。
这就是为什么今天还有40%的加利福尼亚人仍然把西班牙语作为第一或第二语言的缘故。
俄罗斯人19世纪初期，一批最初到阿拉斯加的俄罗斯猎人开始在加利福尼亚定居下来。
今天，住在圣弗朗西斯科（旧金山）及其周边地区的美籍俄罗斯人约有25,000人。
淘金矿工1848年，在美国同墨西哥开战之后不久，在加利福尼亚发现了金矿。
发财梦很快就吸引了世界各地的人。
距离最近因而来得最早的是南美洲人和美国人。
人教版高中英语选修八Unit2CloningUsingLanguage
2.retirevi.退休；离开 【语境领悟】 ① Whenheretiredhewouldbeabletolookbackonhislifewithsatisfact ion. 他在退休后能够满意地回顾往事。 ②Shewasforcedtoretireearlyfromteachingbecauseofillhealth. 她由于身体不好而被迫提前从教学岗位上退休。
bother
Ifyoureturnmethebook,Iwillsto 指因小事而烦扰
pbotheringyou. 别人，带有故意
如果你把书还给我，我就不打 打扰他人的意思
扰你了。
trouble
尤指在行动上给人带来 不便或在身心上给人造 成痛苦
Whatistroublingyou?什 么事使你愁眉苦脸？
高中英语课件
（金戈铁骑 整理制作）
Unit2Cloning UsingLanguage
Ⅰ.根据所给汉语提示写出正确单词 1.Schooluniformisnolonger____c_o_m__p_u_ls_o(r强y 制的)inmany Britishschools. 2.TellmehowmuchI____o(w欠e),andI’llgiveittoyou. 3.He__re_t_i_re_d(退役)fromthearmylastmonth. 4.Don’t__b_o_th__er(费心)aboutdrivingmehome;I’llwalk.
④Owingtotherain,thematchwascancelled. 由于下雨，比赛取消了。 【归纳拓展】 (1)owesb.anapology该向某人道歉 owesb.sth.(=owesth.tosb.)欠某人某物 owe...to...欠……；把……归功于…… oweittosb.that...……归功于某人 (2)owingto...因为，由于……
新课标人教版选修八Book8 Unit2 Vocabulary
• 5 forbid vt. (forbade/forbad, forbidden) 禁止；反对 forbid sb. to do sth. 禁止某人做某事 forbid doing sth. 禁止做某事 ①学校不允许学生吸烟。 • The school forbids students to smoke. ②老师严禁带手机到教室。 The teacher forbids carrying cellphones to the classroom. • 6 owe sb. sth.＝owe sth. to sb.欠某人某物 • owe sb. sth. for...因某物欠某人的钱 • owe sb. sth.＝owe sth. to sb.欠某人某物；把……归功于…… • owing to由于 • (1)I owed the garage $20 for the new tyre. 因那个新轮胎我欠汽 车修理厂20美元。 • (2) He owed his success to hard work and practice. 他把他的成 功归功于努力工作和实践 • (3)你欠我一个微笑。 • He owed me a smile./ He owed a smile to me. • (4)他把成功归功于母亲。He owed his success to his mother. • (5)This accident was owing to (由于)his careless driving．
The two buildings differ from each other in style.
• • ②你想通过成为志愿者的方式来作出贡献吗？（起作用）---by means of/ make a difference • 2 pay off得到好结果；取得成功；偿清 • ①They ____________ their debt after ten years 十年后他们还清了债务。 paid off paid off • ②They took a risk but it ____________. 他们冒了很大的风险，但事情成功 了 • pay 其他短语： • 付……的钱；为……而付出代价 pay for 偿付；报答；向……报复 • pay back 访问 pay a visit to
高中英语选修8 Book8 unit2
bother about/with sth 为某人或某事费心或焦急 bother to do sth 费力做某事(常用于否定句)
8. We walked a couple of blocks，looking _______ for a taxi. 我们走了两三个街区寻找出租车，但没找到。
5. At the meeting Smith raised some objections________ my plan which I was able to settle with no trouble. raise/have an objection to... object to (doing) sth. oppose (doing) sth. be opposed to (doing) sth.
Unit 2 Cloning
5．The students are forbidden，unless they have special passes，____________ (stay) out after 11 pm.
6．That company wants to reduce prices to increase its market share, and this is ____________we differ from it.
own it to sb. that...多亏某人
owe sb sth＝ owe sth to sb欠某人某物 owe sb an apology 该向某人道歉 owe sb a favour欠某人一个人情 owing to 因为；由于
7. Why should they bother ______ something they take no interest in when they could get the thing they dreamed of?
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。
人教版高中英语选修8-Unit-2-教案
Unit 2 Cloning Ｉ．单元教学目标Ⅱ.目标语言III. 教材分析与教材重组1. 教材分析本单元以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。
1.1 Warming Up 提供了四幅有关Dolly the sheep(多莉羊) A strawberry plant(草莓植物) Twins（双胞胎婴儿）Identical dogs(克隆狗)的图片，让学生用已有的知识和经验讨论对克隆技术的看法与观点。
1.2 Listening是关于人类克隆的听力材料，难度中等。
1.3 Speaking 根据材料，四人小组合作，要求把自己对克隆婴儿的态度和感觉用相关的语言表达出来。
语言要得体，锻炼语段表达能力。
1.4 Pre-reading是Reading的热身活动。
它要求采用与同学讨论交流的方式谈论有关克隆的相关知识。
1.5 Reading是一篇介绍克隆技术的说明文。
1.6 Comprehending第一题所给出的表格让学生根据课文内容列举克隆技术的优缺点。
第二题让学生根据所拥有的知识来评价作者的观点。
第三题要求学生用自己的语言阐述对克隆技术的观点并给出理由。
1.7 Learning about Language 分词汇和语法两部分，其中Discovering useful words and expressions 是根据语境在运用中掌握词汇。
Discovering useful structures 是通过阅读和补全句子来练习。
1.8 Using Language中的Reading，Discussing and writing要求学生先读, 然后完成四个任务型的作业。
即 1. 讨论并回答三个问题。
回答这些问题，2. 讨论几种已经灭绝的动物，并且讨论哪种动物应该被恢复到这个世界上，并且给出理由。
人教版高中英语选修8教师用书：Unit 2 Section_Ⅰ Warming Up - Reading — Pre-reading(含答案)
Section_ⅠWarming Up & Reading — Prereading 1．What are the advantages and disadvantages of cloning?2．Not only animals but also plants can be cloned. Do you know the difference between them?Please read the following passage to get the answer.A new study of plants that are reproduced by cloning has shown why cloned plants are not identical.Scientists have known for some time that cloned organisms are not always identical: their observable characteristics and traits can vary, and this variation can be passed on to the next generation. This is despite the fact that they are derived (获得) from genetically identical founder cells.Now, a team from Oxford University, the UK, and King Abdullah University of Science and Technology, Saudi Arabia, believe they have found out why this is the case in plants: the genomes (染色体) of regenerate plants carry relatively high frequencies of new DNA sequence mutations (变异) that were not present in the genome of the donor plant.The team reported their findings in this week’s Current Biology.“Where these new mutations actually come from is still a mystery，” said Professor Harberd. “They may arise during the regeneration process itself or during the cell divisions in the donor plant that gave rise to the root cells from which the regenerate plants are created. We are planning further research to find out which of these two processes is responsible for these mutations. What we can sayis that nature has safely been employing what you might call a ’cloning’process in plants for millions of years, and that there must be good evolutionary reasons why these mutations are introduced.”The new results suggest that variation in clones of plants may have different underlying causes from those of variation in clones of animals — where it is believed that the effect of environmental factors on how animal genes are expressed is more important and no similar high frequencies of mutations have been observed.Professor Harberd said, “While our results highlight that cloned plants and animals are very different, they may give us insights into how bacterial and cancer cells replicate themselves, and how mutations arise during these processes which, ultimately, have an impact on human health.”Warming Up1．How much do are natural clone and manmade clone?Clone_is_a_way_of_making_an_exact_copy_of_another_animal_or_plant.Natural_clone_is_one_that_occurs_from_the_“parent”_in_a_natural_form_of_ cloning_without_human_help.Manmade_clone_is_one_produced_through_human_intervention_(介入)．2．Look at these pictures and tell which ones are natural clones and which ones are manmade clones.Natural_clones：AF；Manmade_clones：BCDE3．See another kind of clone. The two women soldiers look very alike. Can you explain why?They_are_called_twins._They_were_born_almost_at_the_same_time_by_the_same_ motherFast Reading1．The text is mainly about the procedure of animal cloning and the life of Dolly the sheep，as well as the reasons why cloning is still controversial.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 ofcloning.(3)Paragraph 3 (E) C．People’s reaction tocloning.(4)Paragraph 4 (A) D．The definition (定义)of cloning.(5)Paragraph 5 (C) E．The problem of Dolly.Careful Reading(1)Which of the following statements about cloning is NOT true according to the text?A．Cloning is something that has been developed quite recently.B．Twins that look exactly the same are originally from the same egg.C．Cloning is used by gardeners to make more money.D．Animal cloning is much more difficult than plant cloning.(2)The cloning of Dolly the sheep succeeded because ________.A．it’s easier to clone a sheep than other animalsB．the scientists were determined and worked hard with patienceC．the scientists were rewarded and got lots of moneyD．many other attempts to clone mammals failed(3)The sheep that donated the somatic cell most probably lived ________ years.A．3 B．6C．9 D．12(4)Which of the following is NOT an advantage of cloning?A．Cloning can be used for medical purposes.B．Large quantities of food can be produced by cloning.C．Cloning can help keep animals from becoming extinct.D．Famous persons who have passed away can be cloned.(5)We can infer from the last three paragraphs that________.A．the normal development of Dolly had no effect on the cloning of other species B．Dolly’s serious disease and final death disturbed the whole worldC．Dolly successfully cloned a new lamb with the help of cloning scientists D．there were arguments about animal cloning and concerns about the future of cloning答案：(1)～(5) ABDDDSummaryCloning is a way of 1.making (make) an exact copy of another animal or plant.2.It has two major uses. One is3.that gardeners use it to produce commercial quantities of plants. The4.other is that it is valuable for research on new species and for medical research on animals.5.However,_the process of cloning is difficult to undertake.Many attempts to clone mammals failed. The first successful clone, Dolly the sheep, made the whole 6.scientific (science) world follow its process, though it had 7.more problems than the normal sheep. On the other hand, Dolly’s 8.appearance (appear) raised a storm of objections and had a great impact 9.on the media and public imagination. Different people have different opinions on it. However, scientists still wonder whether cloning will help 10.or harm us and where it is leading us.Discussionit.(1)I_am_in_favor_of_cloning,_because_medical_cloning_can_help_humans_cure_serious_illnesses_that_ruin_one’s_quality_of_life.(2)I_am_against_cloning,_because_some_people_may_want_to_clone_themselves_to_l ive_forever,_so_it_will_lead_to_some_social_problems.。
新课标人教版选修八Book8 Unit2 Reading
• Preview: • ⅠFind the words or expressions for each of the following meanings from the text. • A._object_ refuse, be against • B._complicated_ made up of many parts • C._breakthrough__ development or discovery • D._procedure__ order of doing something • E._commercial_ buying or selling of goods • F._exact__ the same, precise • H._obtain_ gain, get • I. _merely_ only; simply • J._forbid________ use force against • K._bother_ trouble, disturb •
• ⅡRead the passage and answer the following questions. 1 What are the two major uses of cloning? The first use is to produce commercial quantities of plants. The second is to research on new plants species and do medical research on animals. 2 Why is it easier to make commercial plant clones than animal clones? Cloning plants is straightforward, but the cloning of animals is very complicated.