2021高考英语大一轮复习考点规范练30Unit5Thepowerofnature新人教版选修6
2021年高考英语一轮复习 Unit5 The power of nature对点练习 新人教版选修
2021年高考英语一轮复习 Unit5 The power of nature对点练习新人教版选修6Ⅰ.单词拼写1．Guests ________(惊慌) and screamed when the bomb exploded.2．The boy has the ________(潜能) to bee a pianist，but unluckily，it has never been developed because of poverty.3．With petition being severer and severer，nowadays，students are not ________ (保证) jobs when they graduate from college.4．The fear of all kinds of examinations can be a source of deep ________(焦虑) to many students.5．She looks young，but ________(实际上) she's 50 years old.6．When the train began to move quickly，Helen excitedly________(挥手)at her friends on the platform.7．My time is________(珍贵的)；I can only give you a few minutes.8．When he came out of the water，he was________(颤抖)with cold.答案：1.panicked 2.potential 3.guaranteed 4.anxiety5．actually 6.waved 7.precious 8.tremblingⅡ.短语填空make one's way，burn to the ground，be anxious about，be suitable for，vary from...to...1．With all the houses ________________，they had no place to live in.2．The weather has ________________ fine ________ terrible this month.3．The snow being so thick，how did you ________________ to the top of the hill?4．This kind of soil ________ not ________________ growing peanuts.5．Members ________________ a meeting which extended into the weekend.答案：1.burnt to the ground 2.varied from；to3．make your way 4.is；suitable for 5.were anxious aboutⅢ.完成句子1．Mike and I picked up our things and________________(挥手告别)Mrs Martin.2．Small business owners________________(惶恐不安)over whether they will survive.3．Buying a train ticket two days ahead of time will usually________________(保证你有个好座位)．4．It is reported that there are plenty of graduates________________(渴求工作)．5．Just like spoken language，body language____________________.就像口语，身势语因不同的文化而变化。
【高优指导】(全国通用)2021高考英语一轮复习考点规范练30Unit5Thepowerofnatu
【高优指导】（全国通用）2021高考英语一轮复习考点规范练30Unit5Thepowerofnature新人教版选修6Ⅰ.阅读明白得APAHOA,HAWAII—Hawaii’s Kilauea,one of the most active volcanoes on Earth,has been erupting for more than 30 years.But lava(熔岩) has been rushing toward the town,outside the city of Hilo.It has become a tourist attraction,and visitors gather near a trash transfer station where the lava has destroyed a home.Its roof can be seen in thedistance,above the black hardened lava.The lava flow near Pahoa,one of two active holes,is an irregular eruption.For a short period,scientists were trying to forecast that,and every one of those forecasts was wrong because of this start-and-stop feature.There’s almost no way of forecasting more than a day or two in advance.In Honolulu,University of Hawaii researcher Bruce Houghton is analyzing the eruption using high-speed photography.He said that our understanding of volcanoes is improving with input from many scientific disciplines.This photo of the Kilauea lava flow at Pahoa,Hawaii,was taken Jan.22.The lava is now flowing on another,nearby leg.In Pahoa,as the lava approaches within 500 meters of the local highway, some businesses are open,while others have moved to other places.Business owner Constance Rojcewicz is keeping an eye on the flowing lava.“It’s a l ittle bitfrightening,”she said.“You want to be ready.I’ll be ready to move out if I need to,in a day or two.”The uncertainty is hard on residents.Scientists have discovered the stress level on families,on interpersonal relationships,on children—that’s th e crisis(关键时期) right now.The lava is bringing long-lasting changes.When the lava flow comes through,its effects remain for hundreds of years.The hardened lava rock remains there for a very long time.But that’s how the islands were built.That’s how the isl ands grow as a state.The volcano is a part of life on these islands.1.What’s the good part about the volcanic eruption?A.It is exciting to watch.B.It benefits the tourism.C.It brings little damage.D.It is valuable for research.2.It is hard to forecast the lava flow because .A.the volcano is erupting continuouslyB.it is a long time between two eruptionsC.the volcano doesn’t erupt regularlyD.it is impossible to forecast eruptions3.The photo of lava flow was taken to .A.record the great natural phenomenaB.attract more visitors in the worldC.judge its harm done to local peopleD.gather up information to study it4.What’s the local people’s attitude towards the volcano?A.They are afraid of it.B.They suffer from it.C.They are used to it.D.They are proud of it.BWith any sandwich you buy in the United States you will receive an all toofamiliar side dish without any explanation.The pickle(泡菜).But why?How did thepickle become such an important part of our deli(熟食店) experience?Where did thepickle come from,and more importantly,why does one always come with your sandwich?Pickles have been around for thousands of years and were considered a type of delicious food as early as 2400 BC.The pickle became popular in the U.S. though when the first Jewish immigrants came to New York from Eastern Europe.Famous for their unique combinations of meat,Jewish delis in the city used the pickle as a palate(味觉) cleanser.The acidity allows you to experience the sharp contrast in flavors and more fully appreciate the taste of your sandwich.The specific deli that was the first to place a pickle alongside a sandwich is unknown,but the practice quickly spread beyond Jewish delis.Across the city of New York,the pickle’s popularity grew and by the 1930s there had been many pickle sellers across the Lower East Side.In fact,there were famous “Pickle Wars” that occurred between the sellers competing for the complete controlof trade in the sour sensation.Today the pickle has even been given its own festivalin New York that is celebrated in October.Once the pickle became a staple(不可缺少的食物) in New York,the tradition of including the pickle with a deli sandwich grew in appeal and it quickly became a popular choice for an easy-to-prepare side dish across the U.S. In fact,the pickle is now the most commonly used side dish for a sandwich and the combination makes up the majority of all pickle consumption.It has become so standard that restaurants nolonger list it on the menu.5.The pickle has been enjoyed by many people in the U.S. since .A.2400 BCB.thousands of years agoC.sandwiches became popularD.the first Jews immigrated to New York6.According to Paragraph 2,the pickle .A.is usually very saltyB.is much tastier than meatC.helps clear our sense of tasteD.helps enrich the flavor of food7.What is Paragraph 3 mainly about?A.Pickle sellers in New York.B.The popularity of the pickle.C.The advantage of the pickle.D.Pickle festivals in New York.8.What can we infer from the text?A.There are many kinds of pickles across America.B.The pickle is usually listed on restaurants’ menus.C.Most pickles are used as a side dish for sandwiches.D.Many dishes are accompanied by a variety of pickles.Ⅱ.七选五Feeling both positive and negative emotions is a natural part of being human.We might use the word “negative” to describe difficult emotions,but it doesn’t mean those emotions are bad or we shouldn’t have them.Still,most people would probably rather feel a positive emotion than a negative one.1.What matters is how our emotions are balanced—how much of each type of emotion,positive or negative,we experience.Negative emotions warn us of threats or challenges that we may need to deal with.For example,fear can make us aware of possible danger.2. Angry feelings warn us that someone is stepping on our toes,crossing a boundary,or losing ourtrust.Anger can be a signal that we might need to act on our own behalf.Negative emotions focus our awareness.3. But too many negative emotions can make us feel anxious,exhausted,or stressed out.When negative emotions are out of balance,problems might seem too big to handle.Positive emotions balance out negative ones,and they have other powerful benefits,too.Instead of narrowing our focus like negative emotions do,positive emotions affect our brains in ways that increase our awareness,attention,and memory.They help us take in more information and hold several ideas in mind at once.4.When positive emotions open us up to new possibilities,we are more able to learn and build on our skills.5.A.What helps you feel confident?B.That leads to doing better on tasks and tests.C.It’s a signal that we might need to protect ourselves.D.They help us focus on a problem so we can deal with it.E.For example,it’s likely you’d prefer to feel happy instead of sad.F.And they then make us understand how different ideas relate to each other.G.Pay attention to these powerful tools and find ways to make time for them.Ⅲ.短文改错(2020·辽宁大连双基测试)One day,I was walking home after school when an old man fell heavy onto the snow-covering road.Many people passed by,and no one took action.Some of them said it was none of their business;others worried that if they helped him,they might got into a difficult situation.Seeing what had happened,I called 120 immediately.While waiting the ambulance,I took down my coat to keep the old man warm.In no time did the ambulance came.Having helped the doctors carry him into an ambulance,I feltrelieved.In my opinion,this is our duty to help those who are in troubles.##考点规范练30(选修6Unit5)Ⅰ.【语篇导读】夏威夷一座活火山喷发,该火山差不多喷发三十多年了,但这次岩浆流得比较远,威逼到了都市。
2021版高考英语大一轮复习Unit5Thepowerofnature课堂达标新人教版选修6
2021版高考英语大一轮复习Unit5Thepowerofnature课堂达标新人教版选修6Ⅰ.单句语法填空导学号 424926411．Amie Salmon, disabled, is attended throughout her school days by a nurse __appointed__ (appoint) to guard her.2．It is widely acknowledged that students should __(should)_be_evaluated__(evaluate) in terms of overall quality.3．The lecture __having__been given, a lively questionandanswer session followed.4．People complain that decisions to approve __or__ deny a permit are often arbitrary rather than based on fixed criteria.5．The party __will_be_held__(hold) in the garden, weather permitting.6．__Having_eaten__(eat) at the cafeteria before, Tina didn't want to eat there again.7．The car burns more fuel, but __taking__(take) all things into consideration, it's still a good car.8．—Johnson has been working very hard and has made great progress in his field.—No wonder he __was_appointed__(appoint) president of the local hospital so soon.9．There is no greater pleasure than lying on my back in the middle of the grassland, __staring__(stare) at the night sky.10．I was about to hand in the paper __when__ I found another mistake and then corrected it carefully.11．This __being__(be) my first performance, I was so worried that I kept on reading the script again and again.12．Have you ever considered how weak humans are __compared__(compare) with a volcano, hurricane or earthquake?13．The trial, in his opinion, was __absolutely__(absolute) fair.14．She sang to the music with her hand __waving__(wave) gently.15．I felt __uncomfortable__(comfortable) in my stomach because I ate too much.Ⅱ.完成句子导学号 424926421．You'd better wear a helmet, because it can __protect_your_head_from_being_hurt__(爱护你的头部不受损害)．2．人们相信她有当教育家的潜质，因为她有语言天赋和专门强的说服力。
2021高考英语大一轮复习 考点规范练30 Unit 5 The power of nature 6
考点规范练30 Unit 5 The power of natureⅠ。
阅读理解A（2019·江苏）In the 1960s,while studying the volcanic history of Yellowstone National Park，Bob Christiansen became puzzled about something that,oddly,had not troubled anyone before：he couldn’t find the park’s volcano。
It had been known for a long time that Yellowstone was volcanic in nature—that’s what accounted for all its hot springs and other steamy features。
But Christiansen couldn't find the Yellowstone volcano anywhere。
Most of us,when we talk about volcanoes,think of the classiccone(圆锥体） shapes of a Fuji or Kilimanjaro，which are created when erupting magma（岩浆） piles up。
These can form remarkably quickly.In 1943，a Mexican farmer was surprised to see smoke rising from a small part of his land。
In one week he was the confused owner of a cone five hundred feet high.Within two years it had topped out at almost fourteen hundred feet and was more than half a mileacross.Altogether there are some ten thousand of these volcanoes onEarth,all but a few hundred of them extinct.There is，however，a second less known type of volcano that doesn't involve mountain building。
2021版高考英语一轮复习第一部分教材复习题组提分练30Unit5Thepowerofnature新
2021版高考英语一轮复习第一部分教材复习题组提分练30Unit5Thepowerofnature新人教版选修6限时70分钟完形填空(2020·太原段考) 体裁：记叙文话题：人际关系难度：★★★☆☆1．A. prevented B. permittedC. witnessedD. started2．A. because B. unlessC. afterD. until3．A. wanted B. managedC. promisedD. happened4．A. anger B. horrorC. excitementD. embarrassment5．A. carpenter B. electricianC. firefighterD. educator6．A. Armed B. SatisfiedC. SharedD. Identified7．A. slid B. fellC. dashedD. walked8．A. trees B. grassC. flamesD. flowers9．A. died off B. took onC. turned outD. picked up10．A. fence B. truckC. furnitureD. bucket11. A. If B. OnceC. SinceD. While12．A. through B. awayC. overD. across13．A. high B. wideC. fastD. far14．A. curious B. cautiousC. concernedD. anxious15．A. moved B. resignedC. retiredD. suffered16．A. everything B. nothingC. somethingD. anything17．A. allowed B. encouragedC. invitedD. forced18．A. fire B. accidentC. attemptD. explanation19．A. afraid B. proudC. carefulD. ashamed20．A. culture B. learningC. skillsD. languages答案与解析【语篇解读】作者13岁时和家人在田地里清除灌木丛时，不知如何的，电围网引起了火，父亲临危不惧扑灭大火救了全家。
(通用版)2021版高考英语大一轮复习限时规范练30Unit5Thepowerofnature新人教版选修6
限时规范练30 Unit 5 The power of nature核心素养关键词:培养学生人与自然、和谐发展的素养能力意识一、阅读理解ABack-to-back hurricanes hit the U.S.Virgin Islands last fall and caused a lot of damage.The U.S.Army Corps of Engineers has collected more than 736,000 cubic yards of rubbish as they rush to clean up St.Thomas,St.John and St.Croix,the Virgin Islands’three major islands,but there is no place to put it.Some of the rubbish is metal,some of it is wood and parts of buildings,but most of it is trees and other plants.The Army Corps will ship the metal to the U.S.mainland to be sold.After being cut up into small parts,wood and other rubbish will be sent there,too.But it is muchharder to get rid of the trees and big plants.The Army Corps wanted to burn the plant waste.It is the cheapest way to get rid of it,which was done in New York and NewJersey after Hurricane Sandy in 2012.But people in the Virgin Islands thought it could harm their health and thehealth of the islands,too.The protest started on the island of St.John,which iscircled by coral reefsand includes a big national park.People on St.Thomas andSt.Croix joined in,too.Sending the plant waste to the mainland is not a good idea,either.It includes insects that could create problems in other areas.In Puerto Rico,an island in the Caribbean Sea,the Army Corps is cutting plant waste into mulch (护根),which helps improve the soil.People in the Virgin Islands like the idea.But there may not be enough space for all of it.And some people are tired of waiting.Raphael Munchez,whose home was damaged,isone of those people.“We need our government to get back on its feet,” he said.“It’s struggling right now.Nobody is worried about pollution right now.We are worried about getting all of this rubbish off the island.”1.What troubled the Army Corps in the Virgin Islands?A.The severe weather.B.The mountains of rubbish.C.The buildings in bad condition.D.The damage caused by Hurricane Sandy.2.What did people in the Virgin Islands think of burning the waste?A.It would not be fairly effective.B.It would not be environment-friendly.C.It would help them rebuild their islands.D.It would destroy coral reefs around the island.3.What is the government doing now to get rid of the plant waste?A.Burning it on St.Croix.B.Sending it to the mainland.C.Cutting all of it into mulch.D.Still waiting for a solution.4.What do Munchez’s words in the last paragraph suggest?A.There will be a quick fix.B.The burning ban wastes time.C.The government’s struggle is worthy.D.Pollution should be regarded as a big problem.BOn December 26,2004,hundreds of tourists relaxed on Sri Lanka’s Yala National Park’s beaches.But at mid-morning the park’s elephants began crying wildly and running away from the ocean and up a nearby hill.The puzzled keepers could tell the animals were worried about something.But what?What the keepers did not know was that a 30-foot wall of water was headedstraight toward them.This tsunami had been caused by an earthquake more than 1,000 miles away in the Indian Ocean.When the huge wave hit the coast,it caused severe damage.Many people died.The elephants,however,were not swept away by the water.They stood safely on the hill.Scientists have long suspected that animals sense natural disasters before humans do.People have told stories of dogs refusing to go outside and sharks swimming to deeper waters before a hurricane.After the 2004 tsunami,people said they sawtigers,monkeys,and water buffalo escaping to higher ground before the waters rushed in.Even in the hardest-hit areas of southern Asia,there were few animal deaths.It’s unlikely that an animal’s so-called sixth sense comes from some magical power to see into the future.Experts believe that animals may be more sensitive than humans to changes in temperature and other environmental conditions that take place before a natural disaster.The elephants in Sri Lanka,for example,may have picked up vibrations (震动) from within the Earth,a sign that danger was coming.Because vibrations in the ground travel much faster than an ocean wave,the elephants may have felt the earthquake that caused the tsunami well before the tsunami itself came to the coast.A few scientists are calling for a system to track reports of strange behavior in people’s pets,hoping that these reports can serve as a warning system that a natural disaster is about to happen.But Marina Haynes,an animal behavior scientist at the Philadelphia Zoo,says,“It would be an unreliable way to predict disasters.It can bedifficult to know what an animal is doing.Is the animal nervous because an earthquake is about to happen or is it frightened because there is an enemy nearby?5.What happened to the elephants in Sri Lanka’s Yala National Park on December26,2004?A.They died in the natural disaster.B.They were disturbed by the tourists.C.They moved from the hill to the seaside.D.They behaved strangely before the tsunami.6.How did the author present animals’ sixth sense in Paragraph 3?A.By giving examples.B.By making comparisons.C.By showing research findings.D.By telling an interesting story.7.What is the main idea of Paragraph 4?A.The advantages of being sensitive.B.The influences of the natural disaster.C.How animals predict a natural disaster.D.How elephants make use of their sixth sense.8.What is Haynes’attitude towards a warning system?A.Delighted.B.Doubtful.C.Hopeful.D.Disappointed.二、完形填空This is a real story about an old man in China.Sixty-three-year-old Zhuang Guorong is a 1 rural primary school art teacher,who has had a life of 2 for more than 40 years.Every year,the strong,younger-than-his-actual-age pensioner goes to “the farmers’home” of Chenyang Community to paint or 3 other villagers how to 4 .“The farmers’ home”,a public building, 5 the venue (聚集地点) for a branchof the Sheyang Farmers Painting Institute.The institute is a government 6 cultural organization in Sheyang County,inthe north of Jiangsu Province,east China.Zhuang works at the 7 part time,and each year he 8 up to tenpaintings,which are then 9 by the local government.He10 around 5,000 yuan— that’s about 740 US dollars — a year by doing this 11 .As well as earning himself some money,Zhuang says the job gives him anopportunity to12 his views of life to his fellow countrymen,13 the elderly.“This painting is about a nursing home.We now live in a(n)14 society.We canno longer 15 the traditional way of taking care of our elderly just with our children doing it.16 ,professional nursing homes are 17 for elderly people’s welfare.“In this painting,I described a 18 of young people celebrating the birthdayof a senior citizen.The 19 I want to convey is that life in one’s later yearscan still be happy.And all of my paintings are like this one — based on our 20 lives.”1.A.smart B.famous C.strict D.retired2.A.painting B.writing C.farming D.designing3.A.ask B.teach C.examine D.answer4.A.exercise municateC.learnD.draw5.A.belongs to B.looks likeC.serves asD.stands for6.A.decorated B.supportedC.controlledD.reported7.A.school B.office C.village D.institute8.A.creates B.collects C.copies D.exhibits9.A.published B.put up C.bought D.handed in10.A.charges B.makes C.spends D.donates11.A.test B.talking C.work D.research12.A.give B.offer C.send D.express13.A.especially B.similarlyC.equallyD.generally14.A.free B.openC.ageingD.technological15.A.ask for B.rely on C.think of D.turn down16.A.However B.Instead C.Besides D.Therefore17.A.important B.practical C.difficult D.unusual18.A.dream B.story C.scene D.photo19.A.example B.message C.experience D.topic20.A.real B.different C.normal D.sad三、短文改错I took a short flight the other day and offered an in-flight sandwich,which I took,known I wouldn’t eat it because it contained meat.I took it thinking that late that day I might come across a homeless person,for who this sandwich might be his only meal.Then I do find a homeless man with his dog Bella by a chance.After opening the sandwich,he shared half with Bella.Seeing he ate it hungry,I emptied our bag of all the treats and food I had.I also went to a store to buying him a large cup ofcoffee.Kind is such a simple thing for us to do,yet for the receiver,it can be life-changing.参考答案限时规范练30(选修6Unit5)一、【篇章导读】本文是新闻报道。
2021版高考英语大一轮复习Unit5Thepowerofnature复习练案新人教版选修62021
2021版高考英语大一轮复习Unit5Thepowerofnature 复习练案新人教版选修620210410375Ⅰ.完形填空(2021·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—k nown 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 hisnose to the ground，__17.B__to find the smell of other dogs that had traveled on the trail.If Balto failed, it would mean disaster for Nome.The minutes passed by.Suddenly，Balto began to__18.A__.He had found the trail.At 530 am on February 2, Kaasen and his dog__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。
2021年高考英语调研大一轮复习课时作业30Unit5ThepowerofnatureA卷新人教版202008111149
2．Attracting senior citizens, Floridais_home_tothe largest population of elder Americans.
5．It's said that this beautiful village was onceburnt_to_the_groundduring the war.
Ⅲ.重点句型
教材还原
1．I was about to go back to sleepwhensuddenly my bedroom became as bright as day.
Its difficulties appear so great that,howeverhardwework,_we fail again and again.
Ⅳ.语篇整合
话题与语篇填空
I often travel unusual places and work alongside people from all over the world. Using scientific equipment and 1.collecting(collect) information about volcanoes is my job. 2.Although/Thoughmy job is occasionally dangerous, I don't mind because danger excites me and makes me feel alive. 3.Asis known, when lava from the volcano flows, many houses will be covered 4.withlava or burnt to the ground. However, my job helps other scientists predict 5.wherelava from the volcano will flow next and how fast, which canhelp protect ordinary people from one of the most powerful 6.forces(force) on earth—the volcano. I once 7.experienced(experience) the eruption ofMountKilaueaand was lucky to have a close look at the 8.absolutely(absolute) fantastic sight. When it broke out, red lava was fountaining hundreds of metres into the air. All the lava 9.passing(pass) slowly down the mountain caused great damage and buried everything in 10.itspath under the molten rock.
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考点规范练30 Unit 5 The power of natureⅠ.阅读理解A(2019·江苏)In the 1960s,while studying the volcanic history of Yellowstone National Park,Bob Christiansen became puzzled about something that,oddly,had not troubled anyone before:he couldn’t find the park’s volcano.It had been known for a long time that Yellowstone was volcanic in nature—that’s what accounted for all its hot springs and other steamy features.But Christiansen couldn’t find t he Yellowstone volcano anywhere.Most of us,when we talk about volcanoes,think of the classic cone(圆锥体) shapes of a Fuji or Kilimanjaro,which are created when erupting magma(岩浆) piles up.These can form remarkably quickly.In 1943,a Mexican farmer was surprised to see smokerising from a small part of his land.In one week he was the confused owner of a cone five hundred feet high.Within two years it had topped out at almost fourteen hundred feet and was more than half a mile across.Altogether there are some ten thousand of these volcanoes on Earth,all but a few hundred of them extinct.There is,however,a second less known type of volcano that doesn’t involve mountain building.These are volcanoes so explosive that they burst open in a single big crack,leaving behind a vast hole,the caldera.Yellowstone obviously was of this second type,but Christiansen couldn’t find the caldera anywhere.Just at this time NASA decided to test some new high-altitude cameras by taking photographs of Yellowstone.A thoughtful official passed on some of the copies to the park authorities on the assumption that they might make a nice blow-up for one of the visitors’ centers.As soon as Christiansen saw the photos,he realized why he had failed to spot the caldera:almost the whole park—2.2 million acres—was caldera.The explosion had left a hole more than forty miles across—much too huge to be seen from anywhere at ground level.At some time in the past Yellowstone must have blown up witha violence far beyond the scale of anything known to humans.1.What puzzled Christiansen when he was studying Yellowstone?A.Its complicated geographical features.B.Its ever-lasting influence on tourism.C.The mysterious history of the park.D.The exact location of the volcano.2.What does the second paragraph mainly talk about?A.The shapes of volcanoes.B.The impacts of volcanoes.C.The activities of volcanoes.D.The heights of volcanoes.3.What does the underlined word“blow-up”in the last paragraph most probably mean?A.Hot-air balloon.B.Digital camera.C.Big photograph.D.Bird’s view.B(2016·北京)SurvivingHurricaneSandy(飓风桑迪)Natalie Doan,14,has always felt lucky to live in Rockaway,New York.Living just a few blocks from the beach,Natalie can see the ocean and hear the waves from her house.“It’s the ocean that makes Rockaway so special,” she says.On October 29,2012,that ocean turned fierce.That night,Hurricane Sandy attacked the East Coast,and Rockaway was hit especially hard.Fortunately,Natalie’s family escaped to Brooklyn shortly b efore the city’s bridges closed.When they returned to Rockaway the next day,they found their neighborhood in ruins.Many of Natalie’s friends had lost their homes and were living far away.All around her,people were suffering,especially the elderly.Natalie’s school was so damaged that she had to temporarily attend a school in Brooklyn.In the following few days,the men and women helping Rockaway recover inspired Natalie.Volunteers came with carloads of donated clothing and toys.Neighbors devoted their spare time to helping others rebuild.Teenagers climbed dozens of flights of stairs to deliver water and food to elderly people trapped in powerless high-rise buildings.“My mom tells me that I can’t control what happens to me,”Natalie says,“but I can always choose how I deal with it.”Natalie’s choice was to help.She created a website page,matching survivors in need with donors who wanted to help.Natalie posted information about a boy named Patrick,who lost his baseball card collection when his house burned down.Within days,Patrick’s collection was replaced.In the coming months,her website page helped lots of kids:Christopher,who received a new basketball;Charlie,who got a new keyboard.Natalie also worked with other organizations to bring much-needed supplies to Rockaway.Her efforts made her a famous st April,she was invited to the White House and honored as a Hurricane Sandy Champion of Change.Today,the scars(创痕) of destruction are still seen in Rockaway,but hope is in the air.The streets are clear,and many homes have been rebuilt.“I can’t imagine living anywhere but Rockaway,”Natalie declares.“My neighborhood will be back,even stronger than before.”4.When Natalie returned to Rockaway after the hurricane,she found .A.some friends had lost their livesB.her neighborhood was destroyedC.her school had moved to BrooklynD.the elderly were free from suffering5.According to Paragraph 4,who inspired Natalie most?A.The people helping Rockaway rebuild.B.The people trapped in high-rise buildings.C.The volunteers donating money to survivors.D.Local teenagers bringing clothing to elderly people.6.How did Natalie help the survivors?A.She gave her toys to other kids.B.She took care of younger children.C.She called on the White House to help.D.She built an information sharing platform.7.What does the story intend to tell us?A.Little people can make a big difference.B.A friend in need is a friend indeed.C.East or west,home is best.D.Technology is power.Ⅱ.七选五阅读Every scientific field uses the scientific method to conductexperiments.Performing experiments is very important in the field of psychology(心理学).Before beginning a study,however,any scientist who wishes to perform an experiment should be familiar with the steps of the scientific method. 1◆Form a hypothesis(假设).It is an educated guess about what will happen during the study. 2 Coming up with a hypothesis before you start can help guide your experiment.◆Plan out a study.Planning out the experiment is essential because psychologists need to know if they have time,materials,and testing areas prepared beforehand.This step also helps the scientists to determine if they will be performing descriptive or experimental research.The ideal situation is to always perform experimental research.3 Descriptive research simply collects data regarding the problem and forms a hypothesis according to the data.◆Collect data. 4 If the data collected is not recorded and organized,the entire efforts of the study may be wasted.The best way to do this may be to record the proceedings so that no details are lost.◆Analyze the data.Once all the data has been collected and organized,it must be ing previous research or scientific information about theproblem,psychologists must apply the new data gathered.◆Publish the information learned.The final step of the scientific method in psychology is publishing the results of the study. 5 Most psychological experiments are published in scientific journals.A.It is based on scientific facts,not just opinions.B.Read on to find out how to use the scientific method in psychology.C.Before psychologists start the experiment,they must plan out the steps.D.This helps other psychologists to learn about and use the new information.E.The scientific method has proved to be an effective way to conduct research.F.To fully understand the study,each part of the experiment must be recorded.G.Sometimes,however,this is impossible and descriptive research will have to be used. Ⅲ.短文改错(2019·全国Ⅱ)Since I was a kid,I’ve considered different job I would like to do.First,I wanted to be a fireman,whose uniform looked so coolly.Then,when I was in the five grade,I wanted to be a teacher because I liked my English teacher too much.When I studied chemistry high school,I reconsidered my goal or decided to be a doctor.They were two reasons for the decision.One was that I was amazing at the fact that a sick person could feel much more better after seeing a doctor.And the other is that I wanted to help people in need.考点规范练30(选修6Unit5)Ⅰ.【解题导语】本文是一篇说明文。