高中英语真题-2016届高考英语一轮复习Unit5Thepowerofnature导学案新人教版选修

Unit 5 The power of nature【高考探究】＂自然与环境＂是高考英语热点话题，通常以阅读理解、完形填空和书面表达的形式考查。

例如：2017年新课标全国卷I阅读理解D篇；2016年北京卷阅读理解；I. 阅读理解Passage1（2017·新课标全国卷Ⅰ）A build-it-yourself solar still（蒸馏器） is one of the best ways to obtain drinking water in areas where the liquid is not readily available. Developed by two doctors in the U.S. Department of Agriculture, it’s an excellent water collector. Unfortunately, you must carry the necessary equipment with you, since it’s all but impossible to find natural substitutes. The only components required, though, are a 5＇5＇ sheet of clear or slightly milky plastic, six feet of plastic tube, and a container — perhaps just a drinking cup — to catch the water. These pieces can be folded into a neat little pack and fastened on your belt.To construct a working still, use a sharp stick or rock to dig a hole four feet across and three feet deep. Try to make the hole in a damp area to increase the water catcher’s productivity. Place your cup in the deepest part of the hole. Then lay the tube in place so that one end rests all the way in the cup and the rest of the line runs up — and out — the side of the hole. Next, cover the hole with the plastic sheet, securing the edges of the plastic with dirt and weighting the sheet’s center down with a rock. The plastic should now form a cone(圆锥体) with 45-degree-angled sides. The low point of the sheet must be centered directly over, and no more than three inches above, the cup.The solar still works by creating a greenhouse under the plastic. Ground water evaporates (蒸发) and collects on the sheet until small drops of water form, run down the material and fall off into the cup. When the container is full, you can suck the refreshment out through the tube, and won’t have to break down the still every time you need a drink.32.What do we know about the solar still equipment from the first paragraph?A.It’s delicate.B.It’s expensive.C.It’s complex.D.It’s portable.33.What does the un derlined phrase “the water catcher” in paragraph 2 refer to?A.The tube.B.The still.C.The hole.D.The cup.34.What’s the last step of constructing a working solar still?A.Dig a hole of a certain size.B.Put the cup in place.C.Weight th e sheet’s center down.D.Cover the hole with the plastic sheet.35.When a solar still works, drops of water come into the cup from.A.the plastic tubeB.outside the holeC.the open airD.beneath the sheet【话题解读】本文主要介绍了一种自己可以亲手制作的简单易行的太阳能蒸馏器的方法，并介绍了它的工作原理。

Unit5ThepowerofnatureSection2LearningaboutLanguageⅠ.单词拼写Ⅰ.单词拼写1．They used to fish in the summer and shoot (狩猎) in the winter.2．I saw her watering some flower on the balcony (阳台)．3．She felt uncomfortable (不舒适), so mother asked her to go to see a doctor.4．Oh look，a rainbow (彩虹) ! She pointed at the sky.5．I have been watching this precious (宝贵的) little family for a couple of hours.6．First, the typhoons (台风)which regularly strike the place are simply too powerful. 7．The crash happened in thick fog (雾)．8．Mothers, may raise your children to be novelists (小说家) like Mo Yan.9．Successful candidates (竞选者)want to be on this list? 10．We have gathered in one convenient location some of the key documents (文件)．Ⅱ.单句改错1．Erupting last night，the volcano destroyed a large area of the small village. Erupting→Having erupted2．Knowing not her telephone number，I couldn't ring her up. Knowing not→Not knowing3．She stood at the station and waiting for the bus.去掉and或waiting→waited4．He died in 1980, having left his wife and four children hop eless.having left→leaving5．When glanced through the newspaper, he came across a photo of his old friend.glanced→glancing6．Turn to the right, you will find the hotel.Turn→Turning或you前加and7．Finishing my work ahead of time, I was allowed to go hom e.Finishing→Having finished8．Appointing as the Minister of Finance, he felt very happy.Appointing→Appointed9．When heard the good news, he jumped with joy.heard→hearing10．Being bathed in the sun，he felt comfortable.Being bathed→BathingⅢ.用所给词的适当形式填空1． Having spent (spend) nearly all our money, we couldn't afford to stay at a hotel.2．There is no greater pleasure than lying on my back in the middle of the grassland， staring (stare) at the night sky. 3． Having spent (spend) the past year as an exchange stu dent in Hong Kong, Linda appears more mature than those of her age.4． Not knowing (not know) anything about the accident, he went to work as usual.5．The old man sat under the tree listening (listen)to the radi o.6． Turning (turn) to the right, you will find the post office yo u're looking for.7．Since it is (be) Sunday，the street is very busy.8． Having been taken (take) to hospital in time, the little girlinfected with bird flu was saved at last.9． Finding (find) her car stolen, she hurried to a policeman f or help.10．Weather permitting (permit)，we'll go on a travel.Unit5ThepowerofnatureSection2LearningaboutLanguageⅠ.单词拼写Ⅰ.单词拼写1．They used to fish in the summer and shoot (狩猎) in the winter.2．I saw her watering some flower on the balcony (阳台)．3．She felt uncomfortable (不舒适), so mother asked her to go to see a doctor.4．Oh look，a rainbow (彩虹) ! She pointed at the sky.5．I have been watching this precious (宝贵的) little family for a couple of hours. 6．First, the typhoons (台风)which regularly strike the place are simply too powerful. 7．The crash happened in thick fog (雾)．8．Mothers, may raise your children to be novelists (小说家) like Mo Yan.9．Successful candidates (竞选者)want to be on this list?10．We have gathered in one convenient location some of the key documents (文件)．Ⅱ.单句改错1．Erupting last night，the volcano destroyed a large area of the small village.Erupting→Having erupted2．Knowing not her telephone number，I couldn't ring her up.Knowing not→Not knowing3．She stood at the station and waiting for the bus.去掉and或waiting→waited4．He died in 1980, having left his wife and four children hopeless.having left→leaving5．When glanced through the newspaper, he came across a photo of his old friend. glanced→glancing6．Turn to the right, you will find the hotel.Turn→Turning或you前加and7．Finishing my work ahead of time, I was allowed to go home.Finishing→Having finished8．Appointing as the Minister of Finance, he felt very happy.Appointing→Appointed9．When heard the good news, he jumped with joy.heard→hearing10．Being bathed in the sun，he felt comfortable.Being bathed→BathingⅢ.用所给词的适当形式填空1． Having spent (spend) nearly all our money, we couldn't afford to stay at a hotel. 2．There is no greater pleasure than lying on my back in the middle of the grassland， stari ng (stare) at the night sky.3． Having spent (spend) the past year as an exchange student in Hong Kong, Linda appe ars more mature than those of her age.4． Not knowing (not know) anything about the accident, he went to work as usual. 5．The old man sat under the tree listening (listen)to the radio.6． Turning (turn) to the right, you will find the post office you're looking for.7．Since it is (be) Sunday，the street is very busy.8． Having been taken (take) to hospital in time, the little girl infected with bird flu was save d at last.9． Finding (find) her car stolen, she hurried to a policeman for help. 10．Weather permitting (permit)，we'll go on a travel.。

高三英语一轮复习 Unit 5 The power of nature精品同步练习新人教版选修6Ⅰ.多项选择1．—Do you allow your son to go to any Internet café on holidays?—__________not!A．Extremely B．ThoroughlyC．Absolutely D．Completely解析：选C。

Absolutely not用来强调很不同意或不允许，意为“当然不；绝对不行”。

2．I appreciate your hard work，but I can not have a________ that you will surely get promoted.A．guarantee B．resultC．belief D．swear解析：选A。

guarantee“保证；担保”。

3．—Dad，there is a snake at the gate crawling this way.—Don’t __________，boys；there’s no danger.A．afraid B．frightenC．terrify D．panic解析：选D。

Don’t panic“不要惊慌”。

afraid为形容词；frighten和terrify是及物动词。

4．He wants very much to go to college，but he is __________ about not passing the entrance examination.A．eager B．anxiousC．patient D．worrying解析：选B。

anxious强调“担心，忧虑”；eager强调对某事的渴望，含有积极的意义；patient“耐心的”；worrying“令人担忧的”，故只有B项符合句意。

5．Each child is unique and teachers should encourage each one to realize their __________.A．power B．strengthC．necessity D．potential解析：选D。

【重点词汇突破】1.appoint vt.任命，委派；约定，指定，安排)They have appointed a new headmaster at my son's school.我儿子读书的学校任命了一位新校长。

P(牛津82(1)appoint sb.as/to be...任命某人为……appoint sb.to do sth.委派某人做某事(2)appointment n．任命；约会make an appointment with sb.与某人约会have an appointment with sb.与某人有约会keep/break an appointment守/违约①My patient didn't turn up at the appointed time，that is，she broke an appointment.我的病人没有在约定的时间到，也就是说，她违约了。

②(2014·湖北卷完形)We entered the park and I made an appointment for the following day.我们进了公园，预约了接下来的那天。

【举一反三】用括内词的适当形式填空①Sam ________________(appoint) manager of the engineering department to take the place of George.答案：has been appointed②I was appointed____________(take) charge of arranging all the activities on that day.答案：to take③If you are invited to dinner，you are supposed to arrive not later than the________(appoint) time. 答案：appointed④I'd love to go there with you，but I have an________(appoint) with my lawyer.答案：appointment2.suit n．一套外衣；套装；vt.适合；使适宜(牛津P)If you want to go by bus，that suits me fine. 2022要是你想坐公共汽车，那对我也合适。

Unit 5 The power of natureⅠ.完形填空(2016·北京)导学号 42492645A Race Against DeathIt was a cold January in 1925 in North Alaska.The town was cut off from the rest of the world due to heavy snow.On the 20th of that month, Dr.Welch__1.A__a sick boy, Billy, and knew he had diphtheria, a deadly infectious(传染的)disease mainly affecting children.The children of Nome would be__2.B__if it struck the town.Dr.Welch needed medicine as soon as possible to stop other kids from getting sick.__3.D__， the closest supply was over 1,000 miles away, in Anchorage.How could the medicine get to Nome? The town's__4.C__was already full of ice, so it couldn't come by ship.Cars and horses couldn't travel on the__5.B__roads.Jet airplanes and big trucks didn't exist yet.__6.C__January 26, Billy and three other children had died.Twenty more were__7.D__. Nome's town officials came up with a(n)__8.A__.They would have the medicine sent by__9.B__from Anchorage to Nenana.From there, dogsled(狗拉雪橇)drivers—known as “mushers”—would__10.A__it to Nome in a relay(接力)．The race began on January 27.The first musher, Shannon, picked up the medicine from the train at Nenana and rode all night.__11.C__he handed the medicine to the next musher, Shannon's face was black from the extreme cold.On January 31, a musher named Seppala had to__12.D__a frozen body of water called Norton Sound.It was the most__13.C__part of the journey.Norton Sound was covered with ice，which could sometimes break up without warning.If that happened, Seppala might fall into the icy water below.He would__14.D__，and so would the sick children of Nome.But Seppala made it across.A huge snowstorm hit on February 1.A musher named Kaasen had to brave this storm.At one point, huge piles of snow blocked his__15.C__.He had to leave the trail (雪橇痕迹)to get around them.Conditions were so bad that it was impossible for him to__16.A__the trail again.The only hope was Balto, Kaasen's lead dog.Balto put his nose to the ground，__17.B__to find the smell of other dogs that had traveled on thetrail.If Balto failed, it would mean disaster for Nome.The minutes passed by.Suddenly，Balto began to__18.A__.He had found the trail.19.D__in Nome.Within minutes, Dr.Welch had the medicine.He quickly gave it to the sick children.All of them recovered.Nome had been__20.B__.文章大意：这是一篇记叙文。

Unit 5 The power of natureⅠ.阅读理解(建议用时16′)A[2016·广东揭阳一中检测]When traveling, it's important to learn about the customs and etiquette of the global village. What we consider polite W1 behavior at home isn't always accepted outside our borders.●Etiquette of Gift GivingGift giving should be a happy, positive experience. When selecting a present for someone in Netherlands, don't purchase fancy kitchen knives or scissors. Giving sharp, pointy objects as gifts is considered unlucky W2. Be careful when presenting flowers to a friend or a business partner in Russia. Yellow blooms suggest cheat or a relationship break up. Traditionally, red carnations are placed on the tombs of the dead. Writing cards or notes while visiting South Korea, be mindful of your pen's ink color. Writing a person's name in red ink traditionally suggests that the person has passed away P1—an important point to remember when giving a birthday card.●Eating CustomsBeing early or on time is viewed as being rude, too eager or even greedy W3 in Venezuela. If you are invited to someone's home for a meal, it's recommended that you arrive 10 minutes later than the requested time.S When having a meal in Egypt, don't use the salt shaker (盐瓶). It's insulting to your host to spread salt on your food, which means that you find the meal terrible. Japan is a very polite nation, and their fondness for etiquette extends W4 to the use of chopsticks. According to P2 Japanese custom, if you're in the middle of eating, use the opposite end of your chopsticks to secure W5 food from a shared plate. When doing business in Turkey, it's the custom for your host to pay for your meal. Requests to split the bill won't be accepted. If you would like to pay your fair share, Turks recommend inviting your host to a follow­up meal.本文讲述的是两种旅游礼仪——送礼物和就餐礼仪。

入舵市安恙阳光实验学校Unit 5 The power of nature第一部分听力（满分30分）（略）第二部分阅读理解(共两节，满分40分)第一节 (共15小题；每小题2分，满分30分)阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。

AEnvironmental health is defined as the control of the factors (因素)in the environment social well-being (安乐) that may have harmful effects on people's physical, mental, or because natural disasters expose people to danger by bringing up or threatening their immediate environment , effective management of environmental health after a natural disaster is of great importance.The environmental health measures that must be considered after a natural disaster include the supply of appropriate shelter for individuals or groups of people left homeless, the distribution (分配)of safe and accessible water, and the protection and distribution of safe food products and so on.To effectively manage environmental health during and after a disaster, it is important that a state of preparation is in effect before the event actually occurs. During an emergency, success largely depends on making good, rapid judgment and appropriate response measures. High-level decision makers, therefore, must be familiar with sound measures beforehand and should be given an accurate judgment of the disaster's specific effects as quickly as possible.This book is intended to serve as a guide for those who may be called upon to make emergency decisions after disaster strikes. The recommended environmental health measures have been listed in the order of priority in which they should be taken during an emergency. However, each natural disaster is unique in the degree or type of emergency. In response to any given disaster, decision makers may find it necessary to change the priority assigned to any particular measure.1.Why is it significant to take effective measures after a natural disaster?A. Victims may be in danger without immediate controls.B. Victims may be at the risk of losing their properties.C. Victims may be exposed to poisonous or radioactive minerals.D. Victims may be threatened by environmental health problems.2.What is the main idea of Paragraph 3?A. Good preparations beforehand are vital.B. Rapid judgment is quite beneficial.C. Effective measures sound familiar.D. Slow responses sound ineffective.3.Whom is the book mainly written for?A.A researcher quite into environment health.B. An organizer to handle domestic disastrous situations.C.A possible decision-maker to handle a disaster emergency.D.A holidaymaker fond of the topic of effective management.4.Which of the following can replace the underlined word ＂priority＂in Paragraph 4?A. Perfection.B. Preference.C. Possibility.D. Popularity-BA tsunami is a series of ocean waves that sends surges (汹涌) of water, sometimes reaching heights of over 100 feet, onto land. These walls of water can cause widespread destruction when they crash ashore.These fear-inspiring waves are typically caused by large, undersea earthquakes at plate boundaries. When the ocean floor at a plate boundary rises or falls suddenly it displaces the water above it and launches the rolling waves that will become a tsunami.Tsunamis may also be caused by underwater landslides (山崩) or volcanic eruptions. They may even be launched, as they frequently were in Earth’s ancient past, by the impact of a la rge meteorite (陨石) throwing into an ocean.Tsunamis race across the sea at up to 500 miles an hour — about as fast as a jet airplane. At that pace they can cross the entire expanse of the Pacific Ocean in less than a day. And their long wavelengths mean they lose very little energy along the way.In deep oceans, tsunami waves may appear only a foot or so high. But as they approach shoreline and enter shallower water they slow down and begin to grow in energy and height. The tops of the waves move faster than their bottoms do, which causes them to rise steeply.A tsunami is usually composed of a series of waves, called a wave train, so its destructive force may be increased as successive waves reach the shore. People experiencing a tsunami should remember that the danger may not have passed with the first wave and should await official word that it is safe to return to vulnerable locations.Some tsunamis do not appear on the shore as massive breaking waves but instead as a quickly surging tide that floods coastal areas.The best defense against any tsunami is early warning that allows people to look for higher ground.5.Which of the following may not cause a tsunami?A.A sudden big landslide underwater.B. An underwater earthquake.C. The eruption of an underwater volcano.D. The falling of a jet plane into the ocean.6.From the text, we can know that .A.in the ancient times, the fallen meteorite often caused a tsunamiB. a tsunami will become weaker and weaker as it moves onC. once a tsunami breaks out, it usually comes one after anotherD. a tsunami can always be predicted ahead of time7.Sometimes a tsunamis is called a wave train because .A.it is as long as a train when it comes to the shoreB.it moves faster and faster like a trainC.it has more than one wave when it breaks outD.it slows down when it comes near the shoreline8.According to the text, how can we avoid a tsunami?A. To build a system predicting it in advance.B. To wait for the end of the first wave.C. To escape by plane or by train.D. To keep away from the coastal areas.CMore than one in 10 of the UK’s wildlife species is threatened with extinction (灭绝) and the number of the nation’s most endangered creatures has fallen by two-thirds since 1970. The abundance of all wildlife has also fallen, with one in six animals, birds, fish and plants having been lost, a State of Nature report found.Together with historical deforestation (毁林) and industrialization, these trends have left the UK ＂among the most nature-exhausted countries in the world＂, with most of the country having gone past the stage at which ＂ecosystems may no longer reliably meet society’s needs＂.zxx*kThe comprehensive scientific report, gathered by more than 50 conservation organizations, spells out the destructive impact of modern farming and climate change on habitats from farmland and hills to rivers and the coast. ＂The fall in wildlife wasn’t just all back in 70s and 80s, it’s still happening now,＂ said Mark Eaton, at RSPB and the lead author of the report. ＂We’re ge tting more efficient in our farming. In a way it’s something to be celebrated —how good our farming science and technology is, but it does squeeze nature out.＂Eaton said there were good examples of wildlife and habitat recovery, but such projects were too few to turn the tide, with public funding for nature’s diversity having fallen by 32% from 2008 to 2015. ＂The ability to do it is within our grasp; it’s just about resources and the willingness. The natural world is in serious trouble and it needs our help as never before. We continue to lose the precious wildlife that enriches our lives and is essential to the health and well-being of those who live in the UK. But the State of Nature 2016 report gives us cause for hope too. Landscapes are being restored, special places defended, struggling species being saved and brought back. But we need to build significantly on this progress if we’re to provide a bright future for nature and for people.＂Overall, the new report found that 56% of species declined between 1970 and 2013, and 53% between 2002 and 2013. While the rest of the species were increasing, we’re seeing a lot of disorder, some species going up really fast and some going down equally fast. It doesn’t look like a healthy, natural situation. If that carries on, you end up with just 50% left.9.How is Paragraph 1 mainly developed?A. By listing figures.B. By giving examples.C. By analyzing causes.D. By making comparisons.10.What does the underlined part mean?A. Modern farming must return to nature.B. Modern farming makes full use of nature.C. Modern farming can enrich nature’s diversity.D. Modern farming may disturb nature’s balance.11.What does the last but one paragraph mainly suggest?A. Endangered wildlife must be well protected.B. People should unite to fight for a bright future.C. The situation is still severe despite some progress.D. More money is needed for environmental protection.12.What is the author’s purpose in writing the passage?A. To tell the British how to save wildlife species.B. To explain why more wildlife species face extinction.C. To stress the importance of protecting wildlife species.D. To introduce the current situation of Britain’s wildlife species. DWelcome campers! is your one –stop resource to find the perfect summer camp for your child. If you’re a camp lover, you will never fail to find the most suitable camp on our website! Happy camping!C amp Woodmont on Lookout MountainCamp Woodmont, with an emphasis on nature, is a traditional overnight summer camp for boys and girls aged 6-14, we are located on 170 acres of beautiful North Georgia woodlands on top of Lookout Mountain.Our summer camp experience provides cabin living, cool evenings around the camfire, creative counselors, new friends, talent nights, and a close family –like atmosphere. Activities include outdoor adventure, horseback riding, noncompetitive sports, and more. The atmosphere is appropriate for children from all faiths.Camp InventionCamp Invention is where your child learns science, technology engineering and math in a weeklong experience that taps into the spirit of innovation. No matter whether your kid wants to be a rocket scientist, an engineer or second baseman, Camp Invention is sure to teach lifelonglessons. Children see themselves as scientists, programmers and biologists testing out more than one dozen experiments in the Camp Invention Laboratories. Every day there are exciting new challenges, from programming and coding, go repowering cars. Investigation and discovery are the key ingredients to fun in the ever-changing lab: Where Pige Fly and anything is possible!Sea CampSea camp is a year round, non-profit marine science and education camp for teenagers. Marine science instructors lead explorations, provide help in identification, explain relationships, and teach scientific techniques in marine environments including the living coral reef. It offers marine science education and a full suite of water sports and activities including SCUBA, sailing surfing, fishing, arts & crafts, and many more. Campers 12-17 years old enjoy these activates and many more in a traditional summer camp setting. Courses especially designed to teach teens to SCUBA dive can lead to NAUI Basic or Advanced certification.13.Camp Woodmen on Lookout Mountain is intended for .A. school students aged 12-17B. teenagers 14-17 years oldC. campers aged 6-14D. boys and girls under 1514.Of the following statements, which one is true?A. Camp Wood mont on Lookout Mountain requires campers to be competitive.B. Camp Invention is a good way to get the experience of being an instructor.C. Camp Invention is beneficial to cultivate children’s creativity.D. Sea Camp develops teenagers’ ability of independence.15.What can Sea Camp provide for teenagers?A.A series of water sports and performances.B.A suite of water sports and activities equipment.C.A set of scientific techniques to train surfing and sailing.D.A series of education in marine environments.第二节 (共5小题；每小题2分，满分10分)根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。

手惰市安逸阳光实验学校课时跟踪练30 Unit 5 The power of natureⅠ.阅读理解AIf humans pump enough carbon dioxide(CO2)into the atmosphere，stratocumulus clouds(层积云)could disappear，and the Earth's temperature could climb sharply to heights not predicted in current climate models.It would burn the planet.That's the conclusion of a paper published in the journal Nature Geoscience and described in detail by Natalie Wolchover for Quanta Magazine.As Wolchover explained，clouds have long been one of the great uncertainties of climate puter models that easily capture the complexity and detail of most climate systems just aren't powerful enough to predict worldwide changes in the behaviour of clouds.But clouds are important.They reflect sunlight away from the Earth'ssurface.And stratocumulus clouds are those white blankets you might have seen as you look out the window of the airplane，rolling out below you and hiding the ground.Researchers suspect that certain sudden jumps in temperature may have been caused by changes to clouds like these.For the new research，scientists modeled just a small patch of sky using a supercomputer.They found that if carbon dioxide levels reach about 1，200 parts per million(ppm)in the atmosphere，stratocumulus clouds will break up.That's a very high carbon dioxide concentration.Right now，levels have climbed past 410 ppm—a dangerous change from 280 ppm before the Industrial Revolution.But humans put more and more CO2 into the atmosphere every year.If current trends continue，the Earth could reach 1，200 ppm within 100 to 150 years.This could happen if our society doesn't follow through on any of its commitments to reduce emissions(排放物)，Wolchover reported.And even if it does，the result would be another 8 degrees Celsius of heat added to the global an average，on top of the dangerous changes already underway due to greenhouse gases.That's an enormous change，and it goes beyond predictions of worldwide ice melt and catastrophic sea level rise.And，once stratocumulus clouds are gone，Wolchover reported，they likely wouldn't reappear until atmospheric carbon dioxide levels dropped below wherethey are currently.There's still some uncertainty in the data.The 1，200 ppm figure could change as scientists look into the issue further.1．What can we learn from Paragraph 2?A．Most climate systems are not complex.B．The behaviour of clouds is uncertain and hard to predict.C．Temperature changes affect stratocumulus clouds.D．The stratocumulus clouds protect planes from sunlight.2．What does “it”refer to in Paragraph 4?A．The atmosphere. B．The earth.C．Our society. D．The result.3．Which of the following statements would Wolchover most probably agree with ?A．The effects of CO2 emissions have been fully assessed.B．Stratocumulus clouds won't return if they are gone.C．The breakup of stratocumulus clouds could result in catastrophes.D．Once CO2 level reaches 1，200 ppm，stratocumulus clouds will go extinct.【语篇解读】本文主要介绍了人类如果继续向大气中排放二氧化碳可能造成的后果及原因。

Unit5ThepowerofnatureMount Kilauea, the world's most active volcano, is on the island of Hawaii. It is notfar from Mauna Loa, the largest volcano in the world. Mauna Loa and Kilauea together form the Volcanoes National Park in Hawaii.Mount Kilauea has produced lava (熔岩) more than fifty times in the last one hundred years. At this moment, red hot l avais pouring out of Kilauea. It has been doing this since 1983. Sometimes the lava moves slowly. At other times it pours out very fast asa huge amount of pressure (压力) forces itfrom the volcano. During these times, it moves almost as quickly as water moving down the side of a mountain. Sometimes Kilauea produces a large amount of lava that seems like rivers of fire. When the lava from Kilauea reachesthe ocean, its fierce (凶猛的) heat produces a great amount of steam that rises into the air. The lava is so hot it continues to burn underwater for some time. The lava from Kilaueacontinues to addland to the island as the volcanoes of Hawaii have always done.It was these volcanoesthatformed theislands of Hawaii. Most of the time the lava of Kilauea seems to move peacefully toward the ocean. Yet it is not as peaceful as it seems from a distance.In recent years the lava destroyed one small town on the island. The liquid (流动的) rock slowly covered the town. Itblocked roads and destroyed them. Nothing can stop the lavaof Kilauea.Experts say the volcanoes of Mauna Loa and Kilauea are a s erious threat (威胁) to property on many parts of the island. They also say the volcanoes of the island of Hawaii are proof that the changing environment of Earth is and will always remain beyond human control.Unit5ThepowerofnatureMount Kilauea, the world's most active volcano, is on theisland of Hawaii. It is notfar from Mauna Loa, the largest volcano in the world. Mauna Loa and Kilauea together formthe Volcanoes National Park in Hawaii.Mount Kilauea has produced lava (熔岩) more than fiftytimes in the last one hundred years. At this moment, red hot lava is pouring out of Kilauea. It has been doing this since 1983. Sometimes the lava moves slowly. At other times it poursout very fast asa huge amount of pressure (压力) forces itfrom the volcano. During these times, it moves almost as quickly as water moving down the side of a mountain. Sometimes Kilauea produces a large amount of lava that seems like rivers of fire. When the lava from Kilauea reachesthe ocean, its fierce (凶猛的) heat produces a great amountof steam that rises into the air. The lava is so hot it continuesto burn underwater for some time. The lava from Kilaueacontinues to addland to the island as the volcanoes of Hawaiihave always done.It was these volcanoesthatformed theislands of Hawaii. Most of the time the lava of Kilaueaseems to move peacefully toward the ocean. Yet it is not as peaceful as it seems from a distance.In recent years the lava destroyed one small town on the island. The liquid (流动的) rock slowly covered the town. Itblocked roads and destroyed them. Nothing can stop the lavaof Kilauea.Experts say the volcanoes of Mauna Loa and Kilauea are a serious threat (威胁) to property on many parts of the island. They also say the volcanoes of the island of Haw aii are proof that the changing environment of Earth is and will always remain beyond human control.。

Unit 5 The power of nature(80分钟106分)Part A一、阅读理解(共8小题;每小题2分,满分16分)AWhen DeKalb Walcott Ⅲ was just 8 years old,his father,a Chicago fire chief,let him tag along on a call.DeKalb says a lot of kids idolized basketball player Michael Jordan when he was growing up in Chicago in the 1990s.Not him.“I wanted to be like DeKalb Walcott Jr,” he says to his father.So when his dad asked if he wanted to go on that call with him when he was 8,DeKalb was excited.“I’m jumping up and down,saying,‘Mom,can I go?Can I go?’”The experience changed DeKalb’s life,he tells his dad on a visit to Story Corps.“My eyes got big from the moment the alarm went off.” the younger DeKalb says.“This is the life that I want to live someday.”Now 27,the younger DeKalb is living that life.He became a firefighter at 21 and went to work alongside his dad at the Chicago Fire Department.Before his father retired,the pair even went out on a call together—father supervising(监督) son.“You know,it’s everything for me to watch you grow,” his fa ther says.But he also recalls worrying about one particular fire that his son faced.“I received a phone call that night.And they said,‘Well,your son was at this fire.’ I said,‘OK,which way is this conversation going to go?’” DeKalb Walcott Jr recalls.“And they said,‘but he’s OK.And he put it out all by himself.Everybody here was proud of him.’”“And the word went around,‘Who was out there managing that fire?Oh,that’s Walcott!That’s Walcott up there!’ So,you know,moments like that,it’s heaven on Earth for a dad.”DeKalb Walcott Jr retired in 2009.The younger DeKalb says he’s proud of being a second-generation firefighter.“You know,it makes me look forward to fatherhoodas well,because I’m definitely looking forward to passing that torch down to my son.”(2015·广东茂名一模) 1.The underlined phrase “tag along” in Paragraph 1 is closest in meaningto .A.put out fireB.watch basketballC.follow his fatherD.ask his mother’s permission2.DeKalb Walcott Ⅲ determined to become a firefighter at the age of .A.8B.21C.27D.353.What did DeKalb Walcott Jr want to do before he was told that the fire was put out?A.Go on with the conversation.B.Put it out all by himself.C.Supervise his son.D.Go to the fire scene.4.What can we learn from the last paragraph?A.DeKalb Walcott Jr is proud to be a second-generation firefighter.B.DeKalb Walcott Ⅲ wants his son to become a firefighter too.C.DeKalb Walcott Jr wants to pass the torch to DeKalb Walcott Ⅲ.D.DeKalb Walcott Ⅲ is proud that his son has become an excellent firefighter. 【文章大意】本文是一篇记叙文,讲述了一家两代人对消防工作的热爱。