2021版高考英语一轮复习Unit4Globalwarming课时跟踪新人教版选修6
- 1 - Unit 4 Global warming ———————————◄课时跟踪·一练而就►——————————— Ⅰ.阅读理解 A (2020届云南省师大附中高三月考) There is more mobile apps than just social media. Here are four current favorites for teenagers. MyHomework It seems that there is never an end to schoolwork. Keeping track of what you have to do and making sure it's done when the teacher wants it require good planning. So this app allows you to track classes, tests and homework. It's free. But if you pay a small extra charge, you can get access to the official website and receive homework reminders. This app has been around since 2009 and has been constantly updated ever since. TaoMix2 This is a perfect app of light music, also known as white noise music. TaoMix2, launched in 2016, provides various natural sounds to wipe off your worries, including birdsong, light rain, mild wind and other comforting sounds. Thankfully, you can deepen your state of calm while enjoying the light music. FaceApp Currently very popular in the U．S., FaceApp, released in 2017, is a highly entertaining app that changes your face in strange and funny ways. It can take a photo of your face and age it, or make it younger, force it to smile, or make faces. It can even change your sex. Isn't it funny? With a score of 4.7 on Apple's App Store, FaceApp is the top hit in many countries. Monument Valley It's been available since 2014 and is as popular now as it first appeared. Monument Valley is a game, but it has more to offer. Its millions of fans say it's more like a beautiful artistic experience in sight and sound than simply a test of the player's abilities. Your job is to guide Princess Ida to her destination. To do that you must lead her through unusual buildings and enchanted (被施了魔法的) forests. It's not free, but the quality of the game makes it well worth the money. 【语篇解读】 本文介绍了目前青少年们最喜爱的四款应用程序：MyHomework，TaoMix2，FaceApp和Monument Valley。 - 2 -
1．Which of the following apps appeals to music fans most? A．MyHomework. B．TaoMix2. C．FaceApp. D．Monument Valley. 解析：选B 细节理解题。根据TaoMix2部分的第一句“This is a perfect app of light music, also known as white noise music.”和最后一句“Thankfully, you can deepen your state of calm while enjoying the light music.”可知，TaoMix2最吸引音乐迷。故选B项。 2．When was Monument Valley released? A．In 2009. B．In 2014. C．In 2016. D．In 2017. 解析：选B 细节理解题。根据Monument Valley部分的第一句“It's been available since 2014 and is as popular now as it first appeared.”可知，Monument Valley是在2014年发布的。故选B项。 3．What can we know about these apps? A．MyHomework can provide free homework reminders. B．TaoMix2 can offer all kinds of music. C．FaceApp is mainly for entertainment. D．Monument Valley is free. 解析：选C 细节理解题。根据FaceApp部分的第一句中的“FaceApp, released in 2017, is a highly entertaining app that changes your face in strange and funny ways”可知，FaceApp这个应用程序主要是为了娱乐。故选C项。 B (2020届山西省高三适应性测试) Over the past decade or so, the technology industry has transformed many things we used to buy as physical products into digital services. Could cars be the next part of everyday life to be transformed from a physical product into an ondemand service? One study in the US, for example, forecasts that private car ownership will fall by as much as 80% by 2030 and that using electric rideshares will be four to 10 times cheaper than buying a new car by 2021. The researchers foresee a world where communal, selfdriving electric cars owned by cities or ridesharing companies offer a safe, efficient and flexible personal transportation system. At the very beginning of this revolution, ridecalling services like Uber and Taxify are already potentially cheaper for some people than owning a car. Carsharing - 3 -
services like Zipcar—which enables you to subscribe by the month and then hire a car by the hour—have also started to pop up around the world. What's more, autonomous vehicles should be safer since their software will not make mistakes, drive recklessly or get behind the wheel after too much alcohol. As great as that all sounds, shared, driverless vehicles are most likely to go further in the future than the more optimistic forecasts suggest. While technology is advancing fast, it may take longer to change human behaviour. For people in the middle classes, a car is more than a way to get from point A to point B． It is also a status symbol, a fashion statement and a way of personal freedom. This is why car ownership remains stubbornly high even in European and Asian cities with cheap, reliable public transport and bans on, or congestion charges for, private cars in their centres. The transition (过渡) will be even slower in a country like South Africa. The taxi industry, unions and the government will resist the job losses; autonomous vehicles are probably also not ready to navigate the unpredictable drivers of Jozi's mean streets. 【语篇解读】 这篇文章主要论述了无人驾驶共享汽车的快速发展和其优势所在，以及无人驾驶共享汽车在某些国家不容易推广的原因。 4．What can we infer about carsharing services from Paragraph 2? A．It will cost more to use. B．It will be well received. C．It will replace private cars quickly. D．It will be no better than owning a car. 解析：选B 推理判断题。根据第二段中的“...private car ownership will fall by as much as 80% by 2030 and that using electric rideshares will be four to 10 times cheaper than buying a new car by 2021.”可推断出，B项正确。故选B。 5．Why are autonomous vehicles considered safer? A．They are updated constantly. B．They are driven without wheels. C．They are monitored in real time. D．They are digitally controlled. 解析：选D 细节理解题。根据第三段最后一句“What's more, autonomous vehicles should be safer since their software will not make mistakes...”可知，无人驾驶汽车的软件不会出错，因此无人驾驶汽车被认为是更安全的。故选D。 6．What should be considered before autonomous cars are promoted in South Africa?
2021高考英语一轮复习第一编选修6Unit4Globalwarming课件新人教版
许多人都信奉开发核能和外太空能源会防止糟糕的后果发生的理论。然 而，即使这样可以基本上满足我们的需要，科学家和教育家们仍然反对这一 观点。他们更倾向于拥护用节省能源和回收废料的方法恢复环境生机，并建 议我们要使用节省能源的器具，如电力发动机、微波炉等，还建议我们不要 对如回收罐子这种小事漫不经心。因此，请看看你身边是否有你能做的事， 只要每个人都作出贡献，我们就不必再忍受这个问题的困扰了。
(4) opposite prep. 在……对面 A is opposite B . A 在 B 对面。
[名师点津] (1)oppose 后跟表示动作的词作宾语时，动词要用动名词形 式。be opposed to 结构中，to 是介词，其后也要用动词的-ing 形式。
(2)表示反对的其他表达：disagree with, object to, be against 等。
(2)range from ... to ... 从……到……变动 range between ... and ... 在……和……范围内变动
glance vi. 看一下；扫视 n. 一瞥(P27) (1)单句语法填空 ①She glanced (glance) this way and that and looked very nervous. ②I only had time to glance at the newspapers.
(1)oppose ( doing ) sth. 反对(做)某事 (2) opposed adj. 反对的；对立的 be opposed to 反对…… (3) opposite adj. 相反的；对立的 be opposite to 与……相反
on the opposite side of 在……对面
2021版高考英语一轮复习Unit4Globalwarming课件新人教版选修6 (1)
1. pollution
n.污染;弄脏→ pollute
vt.污染
2. growth
n.增长;生长→ grow vt.& vi.种植;生长;增多
拓 3. disagreement
n. 分歧;不一致→ disagree
vi. 不同
展 意→ agreement
n.同意;协议→ agree vi.同意
完成句子
①由于森林的破坏,大量的荒漠覆盖了土地。 As a result of destroying the forests, a large quantity of desert
has covered the land.
②他想大量购买这些书,因此店主不会要他很多钱。
He wants to buy the books in quantity
特别提醒 ①a quantity of 或quantities of 后既可接可数名词也可接不可数名词。 ②“a quantity of+名词”作主语时,谓语动词用单数;而“quantities of+名
词”作主语时,谓语动词用复数。
2.oppose vt.反对;反抗
①be opposed to=object to... 反对…… 归纳拓展 ②oppose sth.∕doing sth.反对某事∕做某事
词 汇
4. state
vt.陈述;说明→ statement
n.陈述;声明
5. contribution
n.贡献→ contribute v.贡献
6. oppose
vt.反对;反抗;与(某人)较量→ opposed adj.反对
的;对立的
(通用版)2021版高考英语大一轮复习限时规范练29Unit4Globalwarming新人教版选修6
限时规范练29 Unit 4 Global warming核心素养关键词:培养学生人与自然、保护环境的素养能力意识一、阅读理解AChildren from four Buckinghamshire primary schools visited Epilepsy Society to plant a hedge (树篱) as part of a Plant-for-the-Planet project.The children from these schools were planting a hedge in the garden of the Queen Elizabeth House at the charity in Chalfont St Peter.Plant-for-the-Planet gives children across the globe the opportunity to learn about the threats of global warming to the environment,and then put their new knowledge into practice as they plant new trees.The day was organised by Bob Sherren who showed the children how to plant the planet-friendly line of trees in protective chambers (防护室) to shield them from hungry wildlife as they settle in their roots.Bob said,“The day really was‘Thinking Globally,Acting Locally’ put into action.The children learned about the importance of planting trees as a way of helping to bring about climate justice for many living in poorer nations and of course enjoyed planting the trees too.” The eventual hedge,which will grow to full size over ten years behind the Queen Elizabeth House,is made up of trees such as oaks,silver birches and so on.Bob added,“The children were also able to help people living at Epilepsy Society because they will gain some well-needed privacy from the hedge in time.The natural wildlife benefits too from the fruits and nuts that a hedge made from native species can provide as well as the possibility for any number of nesting sites.”Emma Darlington,Epilepsy Society’s volunteer officer,said,“I think it’s so important to encourage the younger generation that the future is in their hands and that they can make a difference,whether it is through taking part in projects likethis or spreading awareness.We hope they learn a little bit about the work we do at Epilepsy Society too — the trees they planted will be enjoyed by everyone here for years to come.”1.What is the purpose of the Plant-for-the-Planet project?A.To help children learn more about society.B.To offer children colourful after-school activities.C.To raise children’s awareness of global warming.D.To teach children how to protect natural wildlife.2.What does the underlined word “shield” in Paragraph 2 probably mean?A.Separate.B.Take.C.Get.D.Protect.3.What can we learn from Emma Darlington’s words in the last paragraph?A.She hopes to popularise volunteering work.B.She tries to drive the children to study hard.C.She expects the children to take positive action.D.She believes the younger generation is promising.BSam is a fourth-year student at Harvard Medical School,but poetry is still a big part of her life,now with a new teacher who believes poetry can benefit every doctor’s education and work,Rafael Campo.Rafael is a doctor,professor and a highly respected poet.“Poetry is in every encounter (邂逅) with my patients.I think healing really ina very great way is about poetry.And if we do anything when we’re with ourpatients,we’re really losing ourselves in their stories,really hearing theirvoices.And,certainly,that’s what a poem does,” he said.Campo worries that something important has been lost in medicine and medical education today:humanity,which he finds in poetry.To end that,he leads a weeklyreading and writing workshop for medical students and residents (住院医生).He thinks medical training focuses too much on distancing the doctor from his or her patients,and poems can help close that gap.Third-year resident Andrea Schwartz was one of the workshop regulars.She said,“I think there’s no other profession other than medicine that produces as many writersas it does.And I think that is because there’s just so much power in doctors and patients interacting when patients are at their saddest.” Not everyone believes that’s what doctors should do,though.Rafael said,“I was afraid of how people might judge me,actually.In the medical profession,as many people know,we must always put the emergency first.But,youknow,that kind of treatment,if it’s happening in the hospital,veryregrettably,sadly,results in a bad outcome.The family is sitting by the bedside.The patient hasn’t survived the cancer.Don’t we still have a role as healers there?”In a poem titled “Health”,Campo writes of the wish to live forever in a world made painless by our incurable joy.He says he will continue teaching students,helping patients and writing poems,his own brand of medicine.4.What do we know about Rafael Campo?A.He works as a doctor.B.He is under medical care.C.He is a literature professor.D.He knows little about poetry.5.What does the author try to show in Paragraph 2?A.The importance of medical training.B.The effect of poetry in medical treatment.C.The similarity involved in poetry and medical work.D.The present relationship between patients and doctors.6.What does Andrea Schwartz think of poetry?A.It comforts patients’ family.B.It contributes to medical work.C.It has nothing to do with doctors.D.It keeps doctors away from patients.7.What is Rafael Campo’s view on poetry?A.It requires a lot of spare time.B.It can provide a useful tool for doctors.C.It has little effect on patients’ conditions.D.It should be included in emergency treatments.二、七选五From the time my kids were little I was determined to teach them the value of a dollar. 1 If they didn’t do their chores,they didn’t get their allowance (零花钱).And if they didn’t have money,they couldn’t buy anything.It’s kind of likereal life.There was only one problem — me. 2 And then,when they occasionally would wantto buy something that they couldn’t quite afford,I would sometimes let them borrow from the next week’s allowance.But then I’d forget how much they’d borrowed and we’d end up arguing about just how much I owed them. 3Obviously I’m not alone — both in wanting to teach my kids financial responsibility and in needing help. 4 Gregg Murset,a financial planner who has sixkids of his own,created MyjobChart — a website that helps you keep track of the jobs your kids are doing and determine how much they’re owed.5 My 22-year-old daughter recently explained how her emergency fund,built up by saving financial gifts and working during school,allowed her to live independently while continuing her education.So perhaps the thing to remember is that kids learn about handling money from their parents.Save,spend responsibly and try to explain why and they might just end up getting the message.A.In short,I was an unsuccessful banker.B.It is helpful in teaching my kids about money.C.I’d forget to check whether they’d completed their chores.D.So I set up the reward system and record their required chores.E.The kids can sign in and record when they’ve completed their work.F.So I gave them chores and an allowance when they were relatively young.G.Now some parents working on technologies have come up with ways to solve this problem.三、语法填空Climate scientists from the University of Sydney in Australia say tourism causes over 8% of greenhouse gases.Their study looked at the carbon footprints of many 1.(vary) areas of tourism.Up to now,it 2. (study) the CO2 emissions from transport,events,hotels,restaurants 3. shopping.The researchers spent 18 months carrying out the research.They researched the tourist 4. (activity) of 189 countries.Researcher Dr Arunima Malik said her team analysed the influence 5. the environment of over one million businesses 6.(involve) in tourism.The researchers said domestic travel was a 7. (big) cause of CO2 emissions than international or business travel.Air travel was the largest part of tourism’s footprints.The researchers said flying would continue to increase global emissions as more people in the world become richer.The countries 8.(cause) the most harm are the biggest and richest nations.The USA,India and Germany have the largest tourism carbon footprints,in 9. carbon emissions will continue to increase as more of their citizens travel.The researchers encouraged holiday-makers and travelers 10. (try) to reduce their carbon footprints when on vacation so their travel causes less harm to the planet.参考答案限时规范练29(选修6Unit4)一、【篇章导读】本文是记叙文。
2021届高三英语人教版一轮新高考复习学案：选修6 Unit 4 Global warming
13.byproduct n．副产品 14．drought n．旱灾；干旱 15．individual n．个人；个体 adj.单独的；个别的 16．presentation n．显示；演出
8．motor n．发动机
17．commitment n．承诺；交托；
9．can n．容器；罐头
信奉
10．consume vt.消费；_消耗；_耗尽；18．phenomenon n．现象
们一定能克服困难，实现目标。 As/So long as we don't lose heart and keep on trying，we are sure to get over difficulties，and achieve our
aims.
1.quantity n．量；数量；数目，数额 a large/small quantity of 大量/少量的 large quantities of 大量的；许多的 in quantity 大量地
put emphasis on quality rather than on quantity 重视质量而不是数量 huge quantities of food 大量的食物 a small quantity of water 少量的水
[基础练习]——单句语法填空 ①a.With more and more forests cut down, large quantities of soil are being washed (wash) away now. b．With more and more forests cut down, a large quantity of soil is being washed (wash) away now. ②We can offer you a better price if you can buy it in quantity. [链接写作]——词汇升级 (普通表达) Before the exam, I spent a lot of time in preparing for it.Otherwise, I wouldn't have succeeded in passing the exam.
2021版高考英语一轮复习第一编教材回眸Unit4Globalwarming基础达标新人教版选修6
2021版高考英语一轮复习第一编教材回眸Unit4Globalwarming基础达标新人教版选修6Ⅰ.单句语法填空1．Father is strongly opposed to ________ (go) shopping on Sunday because the streets and supermarkets are full of people.答案：going be opposed to ... “反对……”，其中to为介词，其后应接名词、动名词作宾语。
2．The prices of this kind of wine ranged ________ ten yuan ________ 100 yuan per bottle.答案：from; to range from ... to ... “在某范畴内变化”。
3．Though he is less than one year old, he is strong enough to walk ________ (steady)．答案：steadily 副词作状语，在句中修饰动词walk。
4．Do you know how the accident came ________ ?答案：about come about “发生”。
5．With Spring Festival approaching, prices of fruit and vegetables ________ (go) up.答案：have gone go up “上升；增长；升起”。
6．Quantities of money ________ (spend) in bringing up the children since they were married.答案：have been spent “a quantity of＋名词”作主语时，谓语动词与名词的数保持一致；而“quantities of＋名词”作主语时，谓语动词用复数。
2021新高考英语(人教)一轮复习课件：选修6 Unit 4 Global warming
__e_c_on_o_m__y____ n．经济；节约
off the tap after washing. 3．We should awaken public awareness of protecting the wildlife.
两语 1．只有这样我们才能与动物和谐相处。 _O__nl_y_in__th_is__w_a_y_c_a_n_w_e____ live in harmony with the animals. 2．水资源已经被污染得如此严重，以至于一些水不适合饮用或使用。 Water resources have become so badly polluted that some of the water is unfit to drink or use.
选修六 Unit 4 Global warming
课前三 言两语
三言 1．It is high time for us to take measures to prevent the earth from
getting warmer. 2．It is a shame that students leave the water running without turning
children to grandparents. 3．He glanced (glance) quickly over his shoulder to see if he was being followed.
2021高考英语一轮达标Unit4Globalwarming练题(含解析)新人教版选修6
2021高考英语一轮达标Unit4Globalwarming练题（含解析）新人教版选修6李仕才一、阅读明白得。
Priscilla Ouchidas' “energyefficient” house turned out to be a horrible dream.When she and her engineer husband married a few years ago，they built a $100 000，threebedroom home in California.Tightl y sealed to prevent air leaks，the house was equipped with small doublepaned windows and several other energysaving features.Problems began as soon as the couple moved in，however.Priscilla's eyes burned.Her throat was constantly dry.She suffered from headaches and could hardly sleep.It was as though she had suddenly developed a strange illness.Experts finally traced the cause of her illness.The level of formaldehyde(甲醛)gas in her kitchen was twice the maximum allowed by federal standards for chemical work ers.The source of the gas? Her new kitchen cupboards and walltowall carpeting.The Ouchidas are victims of indoor air pollution, which is not given sufficient attention partly because of the nation's drive to save energy.The problem itself isn't new.“The indoor environment was dirty long before energy conservation came along，” says Moschandreas, a pollution scientist at Geomet Technologies in Maryland.“Energy conservation has tended to accentuate the situation in some cases.”The problem appears to be more troublesome in newly constructed homes rather than old ones.Back in the days when energy was cheap，home builders didn't worry much about unsealed cracks.Because of such leaks，the air in an average home was replaced by fresh outdoor air about once an hour.As a result，the pollutants generated in most households seldom build up to dangerous levels.1．It can be learned from the passage that the Ouchidas' house ________.A．is well worth the money spent on its constructionB．is almost perfect from the point of energy conservationC．failed to meet energy conservation standardsD．was designed and constructed in a scientific way2．What made the Ouchidas' new house a horrible dream?A．Lack of fresh air.B．Poor quality of building materials.C．Gas leakage in the kitchen.D．The newly painted walls.3．Why were cracks in old houses not a big concern?A．Because indoor cleanness was not emphasized.B．Because they were technically unavoidable.C．Because environmental protection was more important.D．Because energy used to be inexpensive.4．This passage is most probably taken from an article entitled “________”．A．Energy ConservationB．Houses Building CrisisC．Air Pollution IndoorsD．Traps in Building Construction【解题导语】本文是一篇说明文，介绍了Ouchida夫妇响应国家号召建筑了节能的房子，然而因为房子密不透风，使室内缺少新奇空气，而且甲醛含量超标，室内空气污染，导致他们的躯体显现了状况。
2021版高考英语一轮复习Unit4Globalwarming单元知识检测新人教版选修6
Unit 4 Global warming单元知识检测Ⅰ.单词拼写1.A (广泛传播的) flu epidemic affected eighteen western states.2.The two neighboring countries have expressed some (分歧) about the proposal.3.In addition to these traditional activities,we have a wider (范围) of choices,such as travelling and visiting our relatives or friends.4.The people who cannot quit smoking may easily be affected by his (情况) and surroundings.5.The (平均数) of 3,6 and 9 is6.6.A child who can remember 3,000 English words at the age of 3 would be called an unusual (现象).7.The food was enough in (数量),but not very good in quality.8.Though he is less than one year old,he is strong enough to walk (平稳地).9.The tsunami(海啸) smashing into India Ocean coastlines,which killed 125,000 people in twelve different countries was a terrible (大灾难).10.In (结果) of a terrible earthquake the whole city was destroyed.11.The writer is used to (使振作) himself with a cup of coffee while writing.12.The problem of environmental (污染) has been discussed heatedly recently.13.His son joined the army because he thought it is a great way for him to make (贡献) to his country.14.He (提倡) free market policies and a more flexible system.15.Public worries are the threats of the very (存在) of the nuclear power industry.答案:1.widespread 2.disagreement(s) 3.range 4.circumstance 5.average 6.phenomenon7.quantity8.steadily9.catastrophe10.consequence11.refreshing 12.pollution 13.contributions 14.advocates15.existenceⅡ.单句语法填空1.This plan of Apple Inc.is targeting (consume) of that country with the new notebook.2.I hear you got injured in the basketball competition last week.How did it come ?3.We (subscribe) to an evening newspaper,so you don’t bother to buy one for us.4.China’s Belt and Road Initiative will bring new opportunities to countries along the Silk Road; is no wonder that so many countries attend the meeting.5.I am in favor of the view we must make full use of the existing technical equipment.6.Small quantities of poison (discover) in the dead man’s stomach this morning.7.Prices have risen (steady) during the past decade.8.The show attracted a large audience, (range) from children to old people.9.I doubt he will come today,since I haven’t seen him for a long time.10.Honesty and hard work are the factors (contribute) to success and happiness.答案:1.consumers 2.about 3.have subscribed 4.It 5.that 6.were discovered 7.steadily 8.ranging9.whether∕if 10.contributingⅢ.短语检测1.How did it (发生) that he knew where we were?2.Stress and tiredness often (导致) a lack of concentration.3.They had to (忍受)the bad weather.4. (代表) the entire company,I would like to thank you for all your work.5. (即使) you take a taxi,you’ll still miss your train.答案:e about 2.result in 3.put up with 4.On behalf of 5.Even ifⅣ.根据提示词或相关要求补全句子1.高中学生非常繁忙,即使有户外体育活动的兴趣也没有时间去参加。
2021年高考英语一轮复习 Unit4 Global warming对点练习 新人教版选修6
矿产资源开发利用方案编写内容要求及审查大纲
矿产资源开发利用方案编写内容要求及《矿产资源开发利用方案》审查大纲一、概述
㈠矿区位置、隶属关系和企业性质。
如为改扩建矿山, 应说明矿山现状、
特点及存在的主要问题。
㈡编制依据
(1简述项目前期工作进展情况及与有关方面对项目的意向性协议情况。
(2 列出开发利用方案编制所依据的主要基础性资料的名称。
如经储量管理部门认定的矿区地质勘探报告、选矿试验报告、加工利用试验报告、工程地质初评资料、矿区水文资料和供水资料等。
对改、扩建矿山应有生产实际资料, 如矿山总平面现状图、矿床开拓系统图、采场现状图和主要采选设备清单等。
二、矿产品需求现状和预测
㈠该矿产在国内需求情况和市场供应情况
1、矿产品现状及加工利用趋向。
2、国内近、远期的需求量及主要销向预测。
㈡产品价格分析
1、国内矿产品价格现状。
2、矿产品价格稳定性及变化趋势。
三、矿产资源概况
㈠矿区总体概况
1、矿区总体规划情况。
2、矿区矿产资源概况。
3、该设计与矿区总体开发的关系。
㈡该设计项目的资源概况
1、矿床地质及构造特征。
2、矿床开采技术条件及水文地质条件。
高考英语一轮优练题Unit4Globalwarming(含解析)新人教版选修6
2021年高考英语一轮优练题Unit4Globalwarming（含解析）新人教版选修6李仕才一、阅读明白得。
Everyone knows that death is natural, but do you have any idea of the process of dying? Modern scientists divide the process of dying into two stages — clinical or temporary death and biological death. Clinical death occurs when the vital organs, such as the heart or lungs, have stopped functioning, but have not suffered permanent damage. The organism can still be saved. Biological death occurs when changes in the organism lead to the “breaking up” o f vital cells and tissues. Death is then unchangeable and final.Scientists have been seeking a way to prolong the period of clinical death so that the organism can remain alive before biological death occurs. The best method developed so far involves cooling the organism, combined with narcotic (麻醉) sleep. By slowing down the body’s metabolism (新陈代谢), cooling delays the processes leading to biological death.To show how this works, scientists performed an experiment on a six-year-old female monkey called Keta. The scientist put Keta to sleep with a narcotic. Then they surrounded her body with ice-bags and began checking her body temperature. When it had dropped to 28 degrees the scientists began taking blood out from an artery (动脉). The monkey’s blood press ure decreased and an hour later both the heart and breathing stopped: clinical death set in. For twenty minutes Keta remained in this state. Her temperature dropped to 22 degrees. At this point the scientists pumped blood into an artery in the direction of the heart and started artificial breathing. After two minutes Keta’s heart became active once more. After fifteen minutes, spontaneous (自发的) breathing began, and after four hours Keta opened her eyes and lifted her head. After six hours, when the scientists tried to give her a penicillin (青霉素) injection, Keta seized the syringe (注射器)and ran with it around the room. Her behavior differed little from that of a healthy animal.1.For a person who suffers from the clinical death _________.A. he is still very much aliveB. he cannot avoid final deathC. his most important organs are damaged foreverD. he still has the possibility of getting back to life2.Scientists try to make the time of clinical death longer in order to _________.A. cool the organismB. delay the coming of biological deathC. slow down the body’s metabolismD. bring vital cells and tissues back to active life3.The text mainly talks about _________.A. clinical death and biological deathB.an experiment on a monkeyC. the meaning of deathD. the process before death4.From the underlined sentence in the last paragraph we can know that _________.A. Keta was impoliteB. Keta was healthyC. Keta was illD. Keta was crazy【文章大意】本文要紧叙述了为了延缓生理死亡的到来，科学家尽量延长临床死亡的时刻。