【附20套高考模拟试题】云南省昆明市2020届高三下学期第二次统测英语试卷含答案

2020届昆明学校高三英语第二次联考试卷及答案解析第一部分阅读（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、D四个选项中选出最佳选项ALast summer, Katie Steller pulled off the freeway on her way to work inMinneapolis. She stopped at a traffic light, where a man was sitting with a sign asking for help. She rolled down her window and shouted. “Hey. I’m driving around giving free haircuts. Do you want one right now?” The man laughed, then paused. “Actually,” he said, “I was really hoping to get a haircut.” Steller pulled out a red chair from her car and helped the man cut his hair immediately. After the work was done, the man looked in a mirror. “I look good!” he said.Up to now, Steller has given 30 or so such haircuts around the city to people with little influence, and she is strongly aware of the power of her cleanup job.As a teen, she suffered from a severe disease, causing her hair to get thinned, so her mother arranged for Steller’s first professional haircut. “To sit down and have somebody look at me and talk to me like a person and not just an illness, it helped me feel cared about and less alone,” she says. After that, Steller knew she wanted to have her own barbershop so she could help people feel the way she’d felt that day. Not long after finishing cosmetology (美容术) school in 2009, she began what she now calls her Red Chair Project, reaching out to people on the streets. Her aim was that by doing some kind acts, others would be inspired to spread their own.“Part of what broke my heart was just how lonely peoplelooked,” she said. “I thought maybe I’d go around and ask if people want free haircuts. I can’t fix their problems, but maybe I can help them feel less alone for a moment.”It all began with a belief in simple acts of kindness, such as a free haircut. “The way you show up in the world matters,” said Steller. “You have no idea what people are going to do with the kindness that you give them.”1. How does the writer begin the passage?A. By making a comparison.B. By giving a reason.C. By raising a question.D. By describing a scene.2. What made Stellar start the Red Chair Project?A. Her mother’s love for her.B. Her interest in cosmetology.C. Her care for those in need.D. Her wish to fight severe diseases.3. What did Stellar expect from the project?A. To spread kindness.B. To solve social problems.C. To deal with relationships.D. To make people look smarter.BHowdo you turn “dumb” headphones into smart ones? Rutgers engineers have invented a cheap and easy way by transforming headphones into sensors that can be plugged into (插入) smartphones, identify their users monitor their heart rates and perform other services.Their invention, called HeadFi, is based on a small plug-in headphone adapter that turns a regular headphone into a sensing device (装置). Unlike smart headphones, regular headphones lack sensors. HeadFi would allow users to avoid having to buy a new pairof smart headphones with sensors to enjoy sensing features.“HeadFi could turn hundreds of millions of existing, regular headphones worldwide into intelligent ones with a simple upgrade (升级),” said Xiaoran Fan, a HeadFi primary inventor.A Rutgers-led paper on the invention, which results in "earable intelligence", will be formally published in October at MobiCom 2021, the top international conference on mobile computing and mobile and wireless networking. Headphones are among the most popular wearable devices worldwide and they continue to become; more intelligent as new functions appear, such as touch-based gesture control, the paper notes. Such functions usually rely on aiding sensors, such as accelerometers, gyroscopes and microphones that are availableon many smart headphones.HeadFi turns the two drivers already inside all headphones into a versatile (多功能的) sensor, and it works by connecting headphones to a pairing device, such as a smartphone. It doesn't require adding aiding sensors and avoids changes to headphone hardware or the need to customize headphones, both of which may increase their weight and size. By plugging into HeadFi, a converted headphone can perform sensing tasks and play music at the same time.The engineers conducted experiments with 53 volunteers using 54 pairs of headphones with prices ranging from $2. 99 to $15 ,000. HeadFi can achieve 97. 2 percent to 99. 5 percent accuracy on user identification, 96.8 percent to 99. 2 percent on heart rate monitoring and 97. 7 percent to 99. 3 percent on gesture recognition.4. What does Xiaoran Fan think of HeadFi?A. Secure to operate.B. Simple to use.C. Easy to substitute.D. Convenient to store.5. What can we know about HeadFi according to the text?A. It can't work with headphones alone.B. It actually functions as a versatile sensor.C. It makes headphones larger and heavier than usual.D. It doesn't work when headphones are playing music.6. The figures are listed in the last paragraph mainly to show_________.A. the various functions of HeadFiB. the wide popularity of headphonesC. the great complexity of headphonesD. the excellent performance of HeadFi7. What can be the best title for the text?A. How to Use Headphones AppropriatelyB. Headphones Can Be Upgraded InstantlyC. How to Make Regular Headphones IntelligentD. New Uses Have Been Found in HeadphonesCOn World Oceans Day, which falls on June 8, the US National Geographic Society announced it would recognize the Southern Ocean in Antarctica, bringing the global total to five.Unlike the Arctic, Atlantic, Indian and PacificOceans—which are defined by the continents that bound them—the Southern Ocean is instead characterized by the Antarctic Circumpolar Current（南极洋流）. According to the National Geographic, the Southern Ocean includes most of the waters surrounding Antarcticaout to 60 degrees south latitude（纬度）."Encircled by the powerfully swift ACC, it is the only ocean to touch three others and to completely embrace a continent rather than being embraced by them," Sylvia Earle, a marine biologist and oceanographer, told the Daily Mail.Those familiar with the Southern Ocean know it's unlike any other. "Anyone who has been there will struggle to explain what's so charming about it, but they'll all agree that the glaciers are bluer, the air colder, the mountains more awful and the landscapes morecaptivatingthan anywhere else you can go," Seth Sykora-Bodie, a marine scientist at the National Oceanic and Atmospheric Administration, told National Geographic.National Geographic hopes their revised maps will bring public awareness to the region, thereby encouraging Southern Ocean conservation—but its significance is beyond that."We think it's really important from an educational standpoint, as well as from a map-labeling standpoint, to bring attention to the Southern Ocean as a fifth ocean," Alex Tait, National Geographic Society geographer, told The Post. "So when students learn about parts of the ocean world, they learn it's an interconnected ocean, andthey learn there are these regions called oceans that are really important, and there's a distinct one in the icy waters around Antarctica."8. Why is the Southern Ocean different from other oceans?A. It has never been explored before.B. It surrounds the Antarctic all around.C. It is enclosed by the fast-flowing ACC.D. It has ecologically distinct environment.9. What does the underlined word "captivating" in paragraph 4 probably mean?A. Strange.B. Unusual.C. Attractive.D. Informal.10. What does the National Geographic think of the Southern Ocean?A. It will be instructive for students.B. It will promote tourism development.C. It will encourage public to treasure water.D. It will draw scientists to study in the Antarctic.11. What is the best title for the text?A. World Oceans DayB. Revised Antarctic MapsC. Adding a New OceanD. New Discovery under the SeaDWhen you think of the icy Arctic Ocean, do you picture cold blue waters, on which float (漂浮) icebergs home to animals and fish not seen elsewhere on the planet? Think again, or rather add 300 billion pieces of plastic (塑料) to your picture. That's the amount of plastic that scientists believe is floating around the Arctic Ocean. Most of the plastic is in the area to the east of Greenland and north of Scandinavia.Where did it come from? After all, the lands near the Arctic are not really full of people. It turns out that ocean currents are carrying plastic thrown into the ocean all the way to the Arctic. An ocean current is an unending movement of sea water from one point to another. It is caused by several things including heat from the Sun, wind and movement of the Earth.Many of these plastic pieces seem to have travelled for years before reaching the Arctic. This was worked out by scientists studying the plastic problem after they observed the condition of the pieces. While much plastic floats on top of the water, a lot also may be on the sea floor.Plastic has been widely used for 60 years on Earth and our careless throwing of plastic things is slowly turning the once perfectly clean Arctic into a dangerous place. Unlike food waste and plant waste, plastic doesn't break down so easily. In fact the United States Environment Protection Organization reports that “every bit of plastic ever made still exists”.What's the effect? Seabirds, sea turtles and other ocean creatures could get hurt and die when they accidentallyswallowplastic. Plastic waste affects fishing, affecting people who earn money through fishing. Plastics can let out dangerous poisons (毒物) into the water. These may be swallowed by fish, and when these fish are caught and eaten by people or bigger animals, they could get poisoned too!12. What can we learn from the passage?A. The Arctic Ocean is heavily polluted.B. The plastic is mostlyin the area in the east of Greenland.C. An ocean current is just caused by the movement of the earth.D. Much more plastic floats on top of the water.13. Which of the following doesn't contribute to the plastic ocean?A. Humans throw away plastic things at will.B. Ocean currents carry plastic things everywhere.C. Plastic can let out harmful things into the water.D. Plastic is hard to break down.14. What does the underlined word “swallow” in the last Paragraph mean?A. Break down.B. Take in.C. Accept.D. Touch.15. What's the best title of the text?A. Are Men to Blame for Plastic Ocean?B. Arctic Ocean and Its Future!C. Is Plastic Harmful?D. Arctic Ocean or Plastic Ocean?第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。

2020届云南大学附属中学高三英语第二次联考试题及答案解析第一部分阅读（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、D四个选项中选出最佳选项AOlder adults who sleep six hours or fewer a night may have elevated risk for dementia(痴呆症) and other cognitive (认知的) issues, a new study finds.Researchers at Stanford University measured seniors' (ages 65 to 85) dementia risk and cognitive abilities, finding higher risk in those patients who regularly slept six or fewer hours compared to those who slept seven or eight hours. Those seniors who slept nine or more hours also had lower cognitive functions and other health issues, but the researchers didn't find the same high dementia risk in this group.The findings demonstrate how important it is for adults to maintain a healthy sleep cycle, especially as they get older.As adults age, it's common for their sleep patterns to change or becomedisrupted— leading to longer, shorter, or more irregular sleep. This disruption may be linked to Alzheimer's and other forms of dementia, impacting seniors' ability to remember information, problem-solve, and go through everyday behaviors. Sleep disruption can also be caused by or heighten depression, cardiovascular disease（冠心病）, and other conditions.A recommended sleep time for seniors is seven to eight hours, the researchers said. Six or fewer hours corresponded to short sleep, while nine or more hours corresponded to long sleep.The Stanford researchers measured levels of beta amyloid, a protein in the brain that is typically found in high levels when a patient develops Alzheimer's. In addition, the researchers used several tests for memory, attention, spatial skills, and executive function to identify patients' cognitive abilities. Those patients sleeping for six hours or fewer a night were more likely to develop dementia, the researchers found. The low-sleep patients had higher levels of beta amyloid.The Stanford researchers found that patients with lower sleep also performed worse on memory tests, while those with higher sleep (more hours) performed worse on executive function tests，which measure the brain's ability to switch between different tasks.―The main takeaway is that it is important to maintain healthy sleep late in life, Winer told CNN.1. What does the underlined word “disrupted” in paragraph 4 mean?A. difficultB. disorderedC. dissolvedD. different2. According to the findings, which of the following is NOT related to the disrupted sleep?A. It is more likely to cause old people to have bad memories over issues.B. It may contribute to dementia, cardiovascular disease and other illnesses.C. Some daily behaviors perhaps differ from those whose sleeping is normal.D It tends to bring all the old people to undergo brain scans and cognitive tests.3. What can we infer from the study?A. A proper sleep time for seniors is seven to eight hours.B. Low and high sleep patients were both poor at memory tests.C. Executive function test is applied to measure the capacity of brain.D. Keeping a healthy sleep for older adults late in life is crucial.BEvery day, millions of shoppers hit the stores in full force, searching wildly for the perfect gift.Aside from purchasing holiday gifts, most people regularly buy presents for other occasions throughout the year, including weddings, birthdays, anniversaries, and graduations. This frequent experience of gift-giving cancause uncertain feelings in gift-givers. Many enjoy the opportunity to buy presents because gift-giving offers a powerful means to build stronger bonds, while many worry that their purchases will disappoint rather than delight the intended recipients (接受者).Anthropologists describe gift-giving as a positive social process, serving various political, religious, and psychological functions. Economists, however, offer a less favorable view. According to Waldfogel, gift-giving represents an objective wasteof resources. People buy gifts that recipients would not choose to buy on their own, or at least not spend as much money to purchase (a phenomenon referred to as‘‘the deadweight loss of Christmas”).What is surprising is that gift-givers have much experience acting as both gift-givers and gift-recipients, but nevertheless tend to overspend each time they set out to purchase a meaningful gift. In the present research, we propose a unique psychological explanation for this overspending problem — gift-givers link how much they spend with how much recipients will appreciate the gift. Though it seems natural to gift-givers, such an assumption may be unfounded. Indeed, we propose that gift-recipients will be less likely to base their feelings of appreciation on the value of a gift than givers assume.Why do gift-givers assume that gift price is closely linked to gift-recipients’ feelings of appreciation? Perhapsgivers believe that more expensive gifts communicate a stronger sense ofthoughtfulness and consideration. According to Camerer and others, gift-giving represents a symbolic ritual (习俗), by which gift-givers attempt to signal their positive attitudes towards the recipient and their willingness to invest resources in a futurerelationship. In this sense, gift-givers may be motivated to spend more money on a gift in order to send a “stronger signal”. As for gift-recipients, they may not interpret smaller and larger gifts as representing smaller and larger signals of thoughtfulness and consideration.The idea of gift-givers and gift-recipients being unable to account for the other party’s viewpoint seems confusing because people slip in and out of these roles every day. Yet, despite the experience as both givers and receivers, people often struggle to apply information gained from one role in another. In theoretical terms, people fail to use information about their own preferences and experiences to produce more efficient outcomes in their exchange relations. In practical terms, people spend hundreds of dollars each year on gifts, but somehow never learn to estimate their gift expense according to personal insight.4. The author uses “the deadweight loss of Christmas” in Paragraph 2 to express ________.A. gift-givers don’t spend much money during holidaysB. gift-givers don’t ask recipients what gifts they preferC. gift-givers buy improper and expensive giftsD. gift-givers have difficulty in choosing gifts5. According to the passage, people buy gifts to ________.A. receive gifts in returnB. enjoy the feeling of shoppingC. help recipients to save moneyD. better relationships with recipients6. What can we learn from the passage?A. People’s high living standards require expensive gifts.B. Gift-givers buy gifts based on their experiences as recipients.C. Anthropologists think gift-giving meets different human needs.D. Recipients judge the depth of friendship according to the gift price.7. Why did the author write this article?A. To criticize people’s gift-buying habits.B. To analyze people’s gift-giving behaviors.C. To offer advice on how to improve relationships.D. To remind people not to overlook others’ preferences.CNow most of the workers work from 9 am to 5 pm. However, according to the global Internet survey done by the UK Sleep Council, thesiesta（午睡）was the right idea all along. The UK Sleep Council called on the country'sbosses to end nine-to-five working in favor of more flexible hours. They believe what would really increase the workers' productivity is a nice afternoon nap, rather than those bonuses.Forty-one percent of the 12,000 people who responded to the council's survey said they were most productive in the morning, while 38 percent said theyhit their stridein the evening. "This means most of them cannot fully pay attention to what they do in the middle of the day," said sleep expert Dr. Chris Idzikowskii. "We must conclude from this survey that the traditional nine-to-five working day does not suit most workers." He suggested that allowing workers to follow their natural sleeping habits would actually benefit employers by allowing them to expand their working hours and be more productive.Fortunately, being a college lecturer, I don't have to go to work everyday. I only work three days a week, but during the three days I work really long hours and have no time for a little siesta. I'm usually so tired and sleepy in the afternoon, which really affects thevitality（活力）of my classes.I think Dr. Chris Idzikowskii's idea is worthwhile. When people have flexible working hours they could reach their highest productivity. On top of that, flexible working hours mean thatpeople don't have to work all at the same time. That way we could avoid traffic jams. Therefore, it's really killing two birds with one stone!8. What can improve the workers' productivity, according to the UK Sleep Council?A. More bonuses.B. The flexible working time.C. Working for long hours.D. Working in a relaxing way.9. What does the underlined part probably mean in Paragraph 2?A. Were most sleepy.B. Were most flexible.C. Worked at their own pace.D. Worked at their best.10. What did the UK Sleep Council's survey find?A. Few people are suitable to work at noon.B. People are more productive in the morning.C. Some people like to expand their working hours.D. More and more people prefer to work in the evening.11. Why does the author support Dr. Chris Idzikowskii's idea?A. It could solve most of the traffic problems.B. He finds Dr. Chris Idzikowskii respectable.C. He thinks the idea can benefit the society.D. It allows him to work for fewer hours.DMark Bertram lost the tips of two fingers at work in 2018 when his hand became trapped in a fan belt. “It’s life-changing but it’s not life-ending,”he says.After two surgeries and occupational therapy, Bertram decided to ask Eric Catalano, a tattoo artist, to create fingernail tattoos. The idea made everyone in the studio laugh—until they saw the final result. “The mood changed,” Catalano recalls from his Eternal Ink Tattoo Studio in Hecker, Illinois. “Everything turned from funny to wow.”Catalano posted a photo of the tattoos, and it eventually was viewed by millions of people around the world. The viral photo pushed Catalano, 40, further into the world of paramedical tattooing. Now people who want to cover their life-altering scars come from as far away as Ireland to visit his shop.Leslie Pollan, a dog breeder, was bitten on the face by a puppy. She underwent countless surgeries but those gave her no hope. She ultimately traveled six hours for a session with Catalano. HecamouflagedPollan’s lip scar, giving her back confidence.Though he is now known for his talent with intricate fingernail, Catalano uses the techniques he picked up years ago while helping breast cancer survivors. Those tattoos are among the most common paramedical requests. His grandmother had breast cancer, and her battle with the disease is one reason Catalano is so dedicated to helping those with the diagnosis.Catalano performs up to eight reconstructive tattoos each “Wellness Wednesday”. While he charges $100 per regular tattoo, he doesn’t charge for paramedical tattoos: A GoFundMe page established last year brought in more than $16,000, allowing Catalano to donate his work.“Financially, it doesn’t make sense,” Catalano says. “But every time I see emotions from my customers, I am 100 percent sure this is something that I can’t stop doing.”12. How did people in the studio react to Bertram’s idea at first?A. They took it lightly.B. They found it creative.C. They were confused.D. They were impressed.13. What does the underlined word “camouflaged” in Paragraph 4 probably mean?A. Exposed.B. Hid.C. Ignored.D. Removed.14. What does Catalano say about his work with paramedical tattoos?A. It is flexible.B. It is demanding.C. It is profitable.D. It is rewarding.15. Which of the following can best describe Catalano?A. Humorous and experienced.B. Devoted and generous.C. Cooperative and grateful.D. Professional and tolerant.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。

【附20套高考模拟试题】云南省昆明市2020届高三下学期第二次统测英语试卷含答案云南省昆明市2020届高三下学期第二次统测英语试卷第一部分（共20小题每，小题1.5分，满分30分）1．It s a good idea to get students to retell a story their own words．A．of B．in C．by D．through2．Johnson hasn’t felt any effect the new dieting recipe has him since he tried to lose weight three months ago.A．for B．to C．on D．with3．We’ll build a power station ______ water resources are plentiful.A．where B．in whichC．which D．that4．A man can fail many times, he is a real failure when he begins to blame someone else.A．but B．or C．and D．so5．—T ony, do remember to send the report to the sales manager!—________.A．Made it B．Got itC．Heard it D．Followed it6．Nobody can go back and start a new beginning, ______ anyone can start now and make a new ending. A．for B．and C．but D．so7．Is it he or you ________ in charge of the job and supposed to complete it punctually?A．who is B．that isC．who are D．whom are8．—I have no idea what made the students so excited and crazy.—______ it have been their team’s victory in the finals?A．Must B．CouldC．Would D．Should9．--- I can’t think why he_____ so angry. I meant no offence.---It’s typical of him to be sensitive.A．should have been B．must have beenC．might have been D．can have been10．You have a big mouth, Tom. You have told everybody the secret.A．can’t B．mustn’tC．shouldn’t D．mightn’t11．，dear! Things won’t be as bad as you think. There certainly will be chances for you. A．Hurry up B．Look up C．Cheer up D．Make up12．________ individual players, we have a great team but the pro blem is that they don’t play football together well at all.A．On top of B．By means ofC．In terms of D．In case of13．--- Ann, our department may be named the Department of the Year because of the outstanding performance.--- _______.A．Good to know B．I’ll sayC．I hear you on that one D．Can’t argue with that14．—Jack, my plane arrives at 8:30 pm when, I suppose, you ______ dinner.—But I can wait.A．will have B．have hadC．will have had D．are having15．—It’s so hum id these days!—Don’t worry! The rain ________ to stop from tomorrow.A．will expect B．expectsC．will be expected D．is expected16．The high-anxiety focus on reading score may have narrowed student________to knowledge about the world that can improve their reading.A．idea B．aid C．belief D．access17．After I left _______ Linchuan No.2 Middle School, I began college classes in _______ September 2010. A．a; the B．不填; the C．the; the D．不填；不填18．— Can you tell me something about _________ science.—OK. _ Nobel Prize in Chemistry is usually awarded to Americans.A．the; The B．/; The C．a; / D．the; /19．For thousands of years,poetry the favorite type of literature for many in China.A．is B．has been C．was D．will be20．In fact，most of us would the consequences of stupid decisions taken byothers.A．handle B．solve C．follow D．suffer第二部分阅读理解（满分40分）阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。

2020年云南大学附属中学高三英语二模试卷及答案解析第一部分阅读（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、D四个选项中选出最佳选项AThe following 4 famous paintings, from Jan van Eyck’s portrait to Pablo Picasso’s masterpiece, have stood the test of time.The Arnolfini PortraitJan van Eyck’s Arnolfini Portrait, an oil painting on wood produced in 1434, is undoubtedly one of the masterpieces in the National Gallery,London. This painting is as visually interesting as it is famed. It is also an informative document on fifteenth-century society, through van Eyck’s heavy use of symbolism-while husbands went out to engage in business, wives concerned themselves with domestic duties.The Starry NightVincent van Gogh painted The Starry Night, oil on canvas, a moderately abstract landscape painting of an expressive night sky over a small hillside village, during his 12-month stay at the mental hospital nearSaint-Remy-de-Provence,Francebetween 1889 and 1890. When theMuseumofModern ArtinNew York Citypurchased the painting from a private collector in 1941, it was not well known, but it has since become one of van Gogh's most famous works.The HarvestersThe Harvesters is an oil painting on wood completed by Pieter Bruegel the Elder in 1565. It depicts the harvest time which most commonly occurred within the months of August and September. Nicolaes Jonghelinck, a merchant banker and art collector fromAntwerp, commissioned this painting. The painting has been at the Metropolitan Museum of Art inNew York Citysince 1919.GuernicaGuernica,a large black-and-white oil painting, was painted by the Cubist Spanish painter, Pablo Picasso in 1937. The title ‘Guernica’ refers to the city that was bombed by Nazi planes during the Spanish Civil War. The painting depicts the horrors of war and as a result, has come to be an anti-war symbol and a reminder of the tragedies of war. Today, the painting is housed at the Museo National Centro de Arte ReinaSofiainMadrid.1. What do the four paintings have in common?A. They are oil paintings.B. They are kept inNew York.C. They show different people’s lives.D. They are created during 10th century to 19th century.2. What do we know about The Starry Night?A. It shows the scenery of a small hillside village.B. Van Gogh produced it when living in his home.C. A private collector gave it away to the museum.D. It was not famous before 1941.3. Whose painting shows the destruction of war?A. Jan van Eyck.B. Vincent van Gogh.C. Pieter Bruegel.D. Pablo Picasso.BSome of the oldest art in human history is being damaged, scientists say. And climate change may be speeding up its loss. Newresearch reports that ancient rock art in Indonesian caves is degrading over time, as bits of rock slowly break off from the walls. It's a huge loss for human history.Salt crystals（结晶）building up on the walls are a key part of the problem, the study suggests. These salt crystals go into the cave walls, changing sizes as temperatures rise and fall. This process causes the rock to slowly break down.Salt crystals may become larger when exposed to repeated changes between wet conditions and periods of drought. These kinds of changes are expected to become more obvious as the climate continues to warm.In particular, the researchers say, climate change may cause more intense El Nino（厄尔尼诺）events in the future. These events can strengthen the kinds of conditions that help salt crystals form Scientists are still debating the exact influence of climate change on El Nino, a natural climate cycle that drives changing patterns of warming and cooling in thePacific Ocean.The new study, led by Jillian Huntley, examined 11 ancient cave art sites in South Sulawesi, Indonesia. The researchers found evidence of salt formation at all 11 sites. It's merely a small part There are more than 300 known eave art sites around the region. The researchers note that salt crystals may indeed be part of the problem, adding that climate change is a growing threat, one that deserves more attention.4. What is the main cause of the rocks breaking off from the wall?A. Weather patterns.B. Salt crystals.C. Wet conditions.D. Drought Periods.5. Which of the following may researchers agree with?A. El Nino events prevent salt crystals forming.B. Climate change makes little difference to El Nino.C.Salt crystals may become much larger in wet conditions.D. Constant warm weather may cause salt crystals to change size.6. Which word best describes Huntley's attitude to climate change?A. Worried.B. Curious.C. Doubtful.D. Positive.7. What can we learn from thelast paragraph?A. The formation and patterns of salt crystals.B. The impact of climate change on ancient rock arts.C. The historical value of ancient rock art in cave sites.D. The threats of human activities to ancient eave art sites.CMany teens may feel anxious sometimes. It’s the kind of nervousness that makes you bite your nails before a big test. We spend more time online than we should. We feel good about ourselves or bad based on how many Likes and Followers we get on social media. Young people are developing a false view of life.On the screen, we see what people want to show us. People usually only post photos where they are looking their best. They are surrounded by friends and seem that they are having a great time. No one seems sad or lonely. In short, life isfabulous. But sooner or later, our young people compare their real life to it. They find that theirs doesn’t seem as fun or exciting and grow worried that they may be missing out.No wonder teachers are reporting more anxious students. It’s reported that a lot more college students feel ―overwhelming anxiety. The percentage jumped from 50% in 2011 to 62% in 2016. Anxiety is now the most common mental-health problem in my country. It affects nearly one-third of teens and adults.Certainly, we can’t blame it on social media alone. We expect toomuch from our children and a lot of these expectations aren’t reasonable. Their schedules are packed with sports, clubs and homework. They don’t have enough free time. We want our children to succeed, and we don’t care how much it costs.As parents, we must have more balance. On one hand, we push too hard, and on the other hand, we make life too easy for children. We shouldn’t and can’t promise our children that they will always be happy. We shouldn’t try to protect them from the problems of everyday life. Let them solve the problems in person.8. What is the text mainly about?A. What causes teens’ nervousness.B. How to deal with teens’ anxiety.C. What a view of life means to people.D. How to treat social media appropriately.9. What does the underlined word “fabulous” in paragraph 2 mean?A. Wonderful.B. Encouraging.C. Anxious.D. Doubtful.10. Why does the author mention the numbers in paragraph 3?A. To draw teachers’ attention.B. To show teachers’ mental problems.C. To present the seriousness of teens’ anxiety.D. To show adults have more problems than teens.11. What should parents do to help their children out?A. Try to meet their expectations.B. Help them with their homework.C. Give them more free time to play sports.D. Allow them to solve their own problems in life.DA smiling panda and a walking Chinese lantern will be the mascots of the 2022 Winter Olympics and Paralympics (残奥会）in Beijing .The mascots were known to the public on Sept.17, 2019 at a ceremony inBeijing. Beijing Mayor Chen Jining described them as adorable, unique , and exquisite (精致的）。