Large Scale Structure in the Sloan Digital Sky Survey

2020年大通中学高三英语二模试卷及参考答案第一部分阅读（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 question of whether our government should promote science and technology or the liberal arts in higher education isn’t an either / or one, although the current emphasis on preparing young Americans for STEM (science, technology, engineering, maths)-related fields can make it seem that way.The latest congressional report acknowledges the critical importance of technical training, but also insists that the study of the humanities and social sciences must remain central elements of America’s educational system at all levels. Both areas are the key to producing citizens who can participate effectively in our democratic society, become innovative leaders, and benefit from the spiritual enrichment that the reflection on the great ideas of mankind over time provides.Parents and students who have invested heavily in higher education worry about graduates’ job prospects as technological advances and changes in domestic and global markets transform professions in ways that reduce wages and cut jobs. Under these circumstances, it’s natural to look for what may appear to be the most “practical” way out of the problem; “major in a subject designed to get you a job” seems the obvious answer to some, though this ignores the fact that many disciplines in the humanities characterized as “soft” often, in fact, lead to employment and success in the long run. Indeed, according to surveys, employers have expressed a preference for students who have received a broadly-based education that has taught them to write well, think critically, research creatively, and communicate easily.Moreover, students should be prepared not just for their first job, but for their 4th and 5th jobs, as there’s little reason to doubt that people entering the workforce today will be called upon to play many different roles over the course of their careers. The ones who will do the best in this new environment will be those whose educations have prepared them to be flexible. The ability to take advantage of every available tool and insight—picked up from science, arts, and technology—to solve the problems of the future, and seize the opportunities, will be helpful to them and the nation.1. What does the latest congressional report suggest?A. STEM-related subjects help students find jobs in the information society.B. The humanities and STEM subjects should be given equal importance.C. The liberal arts in higher education help enrich students’ spiritual life.D. Higher education should be adjusted to the practical needs of society.2. What is the main concern of students when they choose a major?A. Their interest in relevant subjects.B. The academic value of the courses.C. The quality of education to receive.D. Their chances of getting a good job.3. What does the author say about the so called “soft” subjects?A. They benefit students in their future life.B. They broaden students’ range of interests.C. They just improve students’ communication skills.D. They are essential to students’ healthy growth.BAs a rider, Anna Kiesenhofe’s Olympics victory might be a surprise. The winner of the road race at the Tokyo Olympics left the sport at the end of 2017 when she found herself out of contract (合同). She came into Tokyo without a professional team and left as an Olympic champion.The 30-year old began her cycling career in 2014 after running injuries that prevented her from continuing her pursuits of triathlon (铁人三项). She later joined a Catalan team and won the Spanish National Cup in 2016.The then-26 year old signedher first professional contract with Lotto Soudal Ladies for the following season. However, she ended her 2017 campaign in April and did not sign a contract for 2018, eventually taking a year off the bike. In 2019, Kiesenhofer came back to the sport as a rider, winning the Austrian national road race. Despite her results, Kiesenhofer sill had no professional contract while going into the Tokyo Olympics.Kiesenhofer was the first rider to attack in the Olympic road race, eventually forming a breakaway along with Carl Oberholzer, Omer Shapira, Vera Looser and Anna Plichta, which went on to reach a gap of 11 minutes. After Looser and Oberholzer were dropped, Kiesnhofer ataced her two remaining breakaway companions.After Shapira and Plichta were caught by the peloton (主车群), the rest of the riders seemed to believe that they were racing among themselves for Gold, not knowing that Remehofere was still in front. While it might be a misjudgment from the rest of the peloton that allowed Kiesenhofer to keep her lead of more than two minutes, other riders’ mistakes should not detract from the Austrian’s efforts.Off the bike the new Olympic Champion has a PhD in mathematics after studying at the Technical University of Vienne as well as at Cambridge University. She currently works at the University of Lausanne.4. Why did Anna give up triathlon?A. She got injured.B. She lost interest in it.C. She had to attend university.D. She never won a medal.5. Which is the right order of the following events?①She ended her campaign.②She took a year off the bike.③She began her cycling career.④She won the Austrian national road race.⑤She won the Spanish National Cup.A. ③④①②⑤.B. ②③④①⑤.C. ③⑤①②④.D. ④②③①⑤.6. What were the riders of the peloton unaware of at the Tokyo Olympics?A. The road race was so difficult.B. Anna was a new rider.C. They had caught up with Anna.D. Anna took the lead of them.7. What is Anna’s present job?A. A cycling coach.B. A university teacher.C A professional rider. D. A college student.CThe far side of the moonis a strange and wild region, quite different from the familiar and mostly smooth face we see nightly from our planet. Soon this rough space will have even stranger features: it will be crowded with radio telescopes.Astronomers are planning to make the moon's distant side our newest and best window on the cosmic(宇宙的) dark ages, a mysterious era hiding early marks of stars and galaxies. Our universe was not always filled with stars. About 380,000 years after the big bang, the universe cooled, and the first atoms of hydrogen formed. Gigantic hydrogen clouds soon filled the universe. But for a few hundred million years, everything remained dark, without stars. Then came the cosmic dawn: the first stars flickered, galaxies came into existence and slowly the universe's large­scale structure took shape.The seeds of this structure must have been present in the dark­age hydrogen clouds, but the era has been impossible toprobeusing optical(光学的) telescopes—there was no light. And although this hydrogen produced long­wavelength(or low­frequency) radio emissions,radio telescopes on Earth have found it nearly impossible to detect them. Our atmosphere either blocks or disturbs these faint signals; those that get through are drowned out by humanity's radio noise.Scientists have dreamed for decades of studying the cosmic dark ages from the moon's far side. Now multiple space agencies plan lunar missions carrying radio­wave­detecting instruments—some within the next three years—and astronomers' dreams are set to become reality.“If I were to design an ideal place to do low­frequency radio astronomy, I would have to build the moon,”says astrophysicist Jack Burns of the University of Colorado Boulder. “We are just now finally getting to the place where we're actually going to be putting these telescopes down on the moon in the next few years.”8. What's the purpose of building radio telescopes on the moon?A To research the big bang. B. To discover unknown stars.C. To study the cosmic dark ages.D. To observe the far side of the moon.9. What does the underlined word “probe” in Paragraph 3 possibly mean?A. Explore.B. Evaluate.C. Produce.D. Predict.10. Hydrogen radio emissions can't be detected on Earth because ________．A. there was no light in the dark agesB. they cannot possibly get through our atmosphereC. gigantic hydrogen clouds no longer fill the universeD. radio signals on Earth cause too much interference11. What can we infer from theunderlined sentence in the last paragraph?A. Scientists have to rebuild the moon.B. We will finally get to the moon's distant side.C. The moon is a perfect place to set up radio telescopes.D. A favorable research environment will be found on the moon.DHave you ever imagined that your simple T-shirt could cool you down by up to5℃on these hot summer days? Thanks to a recent discovery, the possibility is getting closer. While there are many alternatives that manage to keep the body warm, this amazing invention aims to offer real relief for those who are eager to feel comfortable and fresh in the outdoors on extremely hot days.Its inventors, engineers Ma Yaoguang of Zhejiang University and Tao Guangming of Huazhong University of Science and Technology in China, look a completely innovative approach. They designed a special textile dial can absorb body heat and re-emit its energy into space as mid-infrared radiation (MIR). This textile cools both theobjects and their surroundings through a technique that is known as radiative cooling, Science reveals. This means that even when it looks like you are wearing a regular shirt, you are actually wearing a device that works like a mirror.Research conducted at Stanford University in 2017 had already managed to cool the wearer by 3℃, but this previous trial was limited. So researchers still need to test the new approach to determine how effectively the new fabric cools while the wearers are standing or walking, and not directly facing the sky, like in their trials. They also need to examine and measure how well it works when T-shirts are not in close contact with the skin.Inventors Yaoguang and Guangming are now looking out for textile manufacturers and clothing brands that are interested in using their fabric. They estimate that the new material will increase clothing manufacturing costs by just 10 percent. “We can make it with mass production which means everybody can get a T-shirt and the cost is basically the same as theirs,” old Yaoguang said.So if you are an athlete or simply someone that has to deal with the extremely high temperatures, be patient because your days of feeling hot and bothered may be corning to an end!12. What is the purpose of the new invention?A. To warm up people's body.B. To cool people off in hot weather.C. To detect the wearers' temperature.D. To protect clothes from becoming wet.13. How does the special product work?A. By turning sunlight into energy.B. By sending out absorbed heat.C. By keeping heat out completely.D. By using light color1 s to reflect sunlight.14. What is the main idea of paragraph 3?A. The invention needs further testing.B. The previous studies lack evidence.C. The new fabric has a good cooling effect.D. The new fabric applies to various situations.15. The invention of the T-shirt may hean example of ________.A. barking up the wrong treeB. robbing Peter to pay PaulC. killing two birds with one stoneD. pulling the cart before the horse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年汕头市第一中学高三英语第一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AFour Best Cities to Visit in WinterCold rains, icy sidewalks and gray skies can make winter travel a trial. But here are four cities around the world that make for a great cold-weather destination:Prague,Czech RepublicWith its snow-capped spires and winding streets,Pragueis a fairytale city that remains ly tourist-free in winter.The amazing architecture looks even prettier under a sheet of snow, with one of the most beautiful areas being the old town, with its Romanesque vaults. Gas street lamps have been placed throughout the city center, adding a romantic color1 to evenings. Cafes here are ideal for escaping the bitter cold.Salzburg,AustriaWith its Christmas songs and traditional markets, this is a perfect city for a winter break. “Silent Night” was performed for the first time in thechurchofOberndorfon the border ofSalzburgon Christmas Eve in 1818.The city's main market is held in the shadow ofSalzburg'sHohensalzburgCastle, but the one held inMirabell Squareis especially popular with food lovers who come to taste local food such as halusky—pieces of dumpling mixed with fried bacon.Tromso,NorwayTromso is widely regarded asNorway's most beautiful city and is a base for spoiling the northern lights. There are several attractive museums, including thePolarMuseum, which offers an insight into the history of Arctic expeditions, and theTromsoMuseum, which is famous for its Sami exhibitions.Amsterdam,NetherlandsIn winter,Amsterdam' s museums are much less crowded, making it the time to visit attractions such as Rijksmuseum or the Anne Frank House. Built originally to house a circus, the Royal Carre Theater is more than 130 years old. Children will love the spectacular performances.1. What can you do inPrague?A. Enjoy the fascinating architecture.B. Taste local food halusky.C. Appreciate Sami exhibitions.D. Watch a circus performance.2. Where was “Silent Night” first performed?A. In thechurchofOberndorf.B. InHohensalzburgCastle.C. InMirabell Square.D. In the Polar Museum.3. Which city will you choose if you want to see the northern lights?A. Prague.B. Salzburg.C. Tromso.D.Amsterdam.BANew Zealandcouncil has announced a month-long road closure in order to allow a sea lion and her pup to reach the ocean safely.John Wilson Ocean Drive in Dunedin will be closed after the New Zealand sea lions made their home at a nearby golf course and started "regularly crossing the road to get to the beach," according to a Facebook post from Dunedin City Council."You can still visit the area on foot or by bicycle, but please give the sea lions lots of space," continued the post.Locals applauded the decision, and one even called for the closure to be made permanent."No dogs should be on the beach, either," wrote Gaylene Smith. "We need to protect our beautiful sea life."Dogs are known to attack sea lions, and Chisholm Links Golf Course, where the sea lions have made their home, also posted advice to dog walkers in a Facebook update."We're lucky to have sea lions on our coastline and we need to share the space with them,as this is what makes our coastline so unique!" wrote the course on Facebook.The council went on to explain thatNew Zealandsea lions are endangered, and are one of the world's rarest species of sea lion.There are an estimated 12,000New Zealandsea lions left, according to the Department of Conservation. Under local law, anyone who kills a sea lion could face up to two years in prison or a fine of up to NZ$250,000(US$178,000).4. What decision has the Dunedin City Council made?A. Closing an ocean drive for a month.B. Forbidding entry into a golf course.C. Forbidding walking dogs outside.D. Closing the nearby beach temporarily.5. How did the City Council announce the decision?A. By informing on TV.B. By sending out notices.C. By posting on Facebook.D. By advertising in a newspaper.6. What is the attitude of the local people toward the closure?A. Doubtful.B. Supportive.C. Uncaring.D. Critical.7. What can we learn aboutNew Zealandsea lions from the text?A. They are afraid of humans.B. They are a common species.C. They are being killed by dogs.D. They are under legal protection.CThe far side of the moonis a strange and wild region, quite different from the familiar and mostly smooth face we see nightly from our planet. Soon this rough space will have even stranger features: it will be crowded with radio telescopes.Astronomers are planning to make the moon's distant side our newest and best window on the cosmic(宇宙的) dark ages, a mysterious era hiding early marks of stars and galaxies. Our universe was not always filled with stars. About 380,000 years after the big bang, the universe cooled, and the first atoms of hydrogen formed. Gigantic hydrogen clouds soon filled the universe. But for a few hundred million years, everything remained dark, without stars. Then came the cosmic dawn: the first stars flickered, galaxies came into existence and slowly the universe's large­scale structure took shape.The seeds of this structure must have been present in the dark­age hydrogen clouds, but the era has been impossible toprobeusing optical(光学的) telescopes—there was no light. And although this hydrogen produced long­wavelength(or low­frequency) radio emissions,radio telescopes on Earth have found it nearly impossible to detect them. Our atmosphere either blocks or disturbs these faint signals; those that get through are drowned out by humanity's radio noise.Scientists have dreamed for decades of studying the cosmic dark ages from the moon's far side. Now multiple space agencies plan lunar missions carrying radio­wave­detecting instruments—some within the next three years—and astronomers' dreams are set to become reality.“If I were to design an ideal place to do low­frequency radio astronomy, I would have to build the moon,”says astrophysicist Jack Burns of the University of Colorado Boulder. “We are just now finally getting to the place where we're actually going to be putting these telescopes down on the moon in the next few years.”8. What's the purpose of building radio telescopes on the moon?A To research the big bang. B. To discover unknown stars.C. To study the cosmic dark ages.D. To observe the far side of the moon.9. What does the underlined word “probe” in Paragraph 3 possibly mean?A. Explore.B. Evaluate.C. Produce.D. Predict.10. Hydrogen radio emissions can't be detected on Earth because ________．A. there was no light in the dark agesB. they cannot possibly get through our atmosphereC. gigantic hydrogen clouds no longer fill the universeD. radio signals on Earth cause too much interference11. What can we infer from theunderlined sentence in the last paragraph?A. Scientists have to rebuild the moon.B. We will finally get to the moon's distant side.C. The moon is a perfect place to set up radio telescopes.D. A favorable research environment will be found on the moon.DAs an old saying inChinagoes, “The days of the Sanjiu periodare the coldest days.” “Sanjiu period” , which is in Minor Cold, refers to the third nine-day period (the l9th to the 27th day) after the day of the Winter Solstice(冬至). There are many different customs related to Minor Cold inChina.Eating hotpotDuringMinor Cold people should eat some hot food to benefit the body and defend against the cold weather. Winter is the best time to have hotpot and braised mutton with soy sauce. But it is important to notice that too much spicy food may cause health problems.Eating huangyacaiInTianjin, there is a custom to have huangyacai, a kind of Chinese cabbage, during Minor Cold. There are large amounts of vitamins A and B in huangyacai. As huangyacai is fresh and tender, it is fit for frying, roasting and braising.Eating glutinous rice (糯米饭)According to tradition, the Cantonese eat glutinous rice in the morning during Minor Cold. Cantonese people add some fried preserved pork, sausages and peanuts and mix them into the rice.Eating vegetable riceIn ancient times, people inNanjingtook Minor Cold quite seriously, but as time went by, the celebration of Minor Cold gradually disappeared. However, the custom of eating vegetable rice is still followed today. The rice issteamed and is unspeakably delicious. Among the ingredients (原料), aijiaohuang (a kind of green vegetable), sausages and salted duck are the specialties in Nanjing.12. What do we know about Minor Cold?A. It refers to the Winter Solstice.B. The Sanjiu period is in this period.C. It lasts twenty-seven days.D. It marks the first day of winter.13. What is a special custom in Tianjin in Minor Cold？A. Eating hotpot.B. Having vitamin A and B pills.C. Having huangyacai.D. Buying cabbage.14. How do the Cantonese eat glutinous rice?A. They fry and toast it.B. They eatit for dinner.C. They mix it with many other things.D. They steam it with soy sauce.15. This text may be taken from the ________ column (栏目) of a newspaper.A. travelB. cultureC. fashionD. science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年中国建筑材料科学研究院附属中学高三英语下学期期末试题及参考答案第一部分阅读（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AI started working with my hands at a young age. The youngest of five brothers, I took on the role as a “maintenance (维修) man” at an early age for our family’s small grocery store. Often my dad wouldn’t give me a clear idea of how something shouldbe done, so I just had to figure it out by researching or through trial and error.Fast forward to 2016 and those problem-solving skills would become the focus of Tippecanoe High School’s Homebuilding class. I knew I wanted to teach the students skills that went beyond just being able to hammer nails or cut pieces of two-by-fours. The problem was that we didn’t have the resources at the time to do much else. The idea of attracting some type of funding seemed very important. Designing, building and selling a tiny house on wheels seemed like the perfect project to accomplishthe task. I reached out to a number of local businesses and most of them responded with the greatest support for what x k w we were doing.This year we added a new element to the program. Through one of our partners, we were able to connect with the nonprofit Veteran’s Ananda Incorporated. Students in the Homebuilding class are leading the design and production of micro houses to be donated to this organization. The new partnership gives the students another focus to consider when designing and building the houses.There has been no shortage of students since our first year. Three years ago we had 41 students, the next 191, and this year it was limited to just over 160 students so we could have a safe and manageable classroom environment. The number of girls taking the class has risen steadily over the last few years as well. This class offers something for everyone and the skills are universal.1. How can we describe the young author?A. He opened a small grocery store.B. He did a lot of research in the lab.C. He enjoyed doing hands-on activities.D. He learnt about maintenance from his father.2. What do the underlined words “the task” in paragraph 2 refer to?A. Getting some financial support.B. Selling a tiny house on wheels.C. Reaching out to many local businesses.D. Offering the students some problem-solving skills.3. What can be inferred about the Homebuilding class from the last paragraph?A. Its size needs increasing.B. Itis popular with the students.C. It has caused some safety concerns.D. Its classroom environment is hard to manage.BJack was 11 months old in the spring of 2015 when his parents, Erika and Christopher, recognized his development was not progressing as it should. The feeling was familiar to the couple. Just a few months earlier, Jack’s brother Chase, who is 16 months older, had been diagnosed with autism(自闭症) after he did not reach motion and language standards as expected.Jack’s behaviors were similarly delayed, and his parents moved quickly to seek help. Today, Jack is 5 — he celebrated his birthday on May 13 — and he can speak in full sentences and read. After two years at a preschool that specializes in services for children with developmental disabilities, he will start kindergarten in theSmithtownschool district in September. “Our family’s experience is a good example of the power and effectiveness of early intervention. The services our boys have received made all the difference,” the parents said.According to scientists, autism can be detected at 18 months or younger, and by age 2 a diagnosis can be considered “very reliable.” The parents said they were happy with Chase’s success at the learning center, but still had concerns for Jack because he was not speaking. Developing social and communication skills can be among the greatest challenge for individuals with autism, even if they are able to say a few words early on. “We didn’t know if he was ever going to talk,” Erika said. “That was my biggest fear. We just didn’t know.”Looking ahead, the parents are cautiously optimistic about Jack’s next educational move. He doesn’t handle change well, they said, and he likes to know his routine. Still, they expressed confidence that his time at the learning center has given him the skills he needs to be successful.4. How did Jack’s parents know he suffered from autism?A. They found the baby clever.B. They judged by their experience.C. They found he didn’t develop.D. They checked on him in the hospital.5. What did the parents think of the early intervention?A. It made no difference to the babies.B. It benefitted the babies greatly.C. It got their babies more disabled.D. It helped their babies speak fluently.6. What can we learn from the third paragraph?A. Autism can be confirmed at 18 months old.B. Jack’s parents were confident about his motor skills.C. Chase’s parents were doubtful about his developmentD. Jack’s parents worried about his language skills most.7. What is the text mainly talking about?A. Autism can be curedif parents take actions early.B. Parents should be confident about their children’s future.C. Early intervention in autism could improve children’s life.D. Communication skills should be developed as early as possible.CAs a rider, Anna Kiesenhofe’s Olympics victory might be a surprise. The winner of the road race at the Tokyo Olympics left the sport at the end of 2017 when she found herself out of contract (合同). She came into Tokyo without a professional team and left as an Olympic champion.The 30-year old began her cycling career in 2014 after running injuries that prevented her from continuing her pursuits of triathlon (铁人三项). She later joined a Catalan team and won the Spanish National Cup in 2016.The then-26 year old signedher first professional contract with Lotto Soudal Ladies for the following season. However, she ended her 2017 campaign in April and did not sign a contract for 2018, eventually taking a year off the bike. In 2019, Kiesenhofer came back to the sport as a rider, winning the Austrian national road race. Despite her results, Kiesenhofer sill had no professional contract while going into the Tokyo Olympics.Kiesenhofer was the first rider to attack in the Olympic road race, eventually forming a breakaway along with Carl Oberholzer, Omer Shapira, Vera Looser and Anna Plichta, which went on to reach a gap of 11 minutes. After Looser and Oberholzer were dropped, Kiesnhofer ataced her two remaining breakaway companions.After Shapira and Plichta were caught by the peloton (主车群), the rest of the riders seemed to believe that they were racing among themselves for Gold, not knowing that Remehofere was still in front. While it might be a misjudgment from the rest of the peloton that allowed Kiesenhofer to keep her lead of more than two minutes, other riders’ mistakes should not detract from the Austrian’s efforts.Off the bike the new Olympic Champion has a PhD in mathematics after studying at the Technical Universityof Vienne as well as at Cambridge University. She currently works at the University of Lausanne.8. Why did Anna give up triathlon?A. She got injured.B. She lost interest in it.C. She had to attend university.D. She never won a medal.9. Which is the right order of the following events?①She ended her campaign.②She took a year off the bike.③She began her cycling career.④She won the Austrian national road race.⑤She won the Spanish National Cup.A. ③④①②⑤.B. ②③④①⑤.C. ③⑤①②④.D. ④②③①⑤.10. What were the riders of the peloton unaware of at the Tokyo Olympics?A. The road race was so difficult.B. Anna was a new rider.C. They had caught up with Anna.D. Anna took the lead of them.11. What is Anna’s present job?A. A cycling coach.B. A university teacher.C A professional rider. D. A college student.DThe far side of the moonis a strange and wild region, quite different from the familiar and mostly smooth face we see nightly from our planet. Soon this rough space will have even stranger features: it will be crowded with radio telescopes.Astronomers are planning to make the moon's distant side our newest and best window on the cosmic(宇宙的) dark ages, a mysterious era hiding early marks of stars and galaxies. Our universe was not always filled with stars. About 380,000 years after the big bang, the universe cooled, and the first atoms of hydrogen formed. Gigantic hydrogen clouds soon filled the universe. But for a few hundred million years, everything remained dark, without stars. Then came the cosmic dawn: the first stars flickered, galaxies came into existence and slowly the universe's large­scale structure took shape.The seeds of this structure must have been present in the dark­age hydrogen clouds, but the era has been impossible toprobeusing optical(光学的) telescopes—there was no light. And although this hydrogen producedlong­wavelength(or low­frequency) radio emissions,radio telescopes on Earth have found it nearly impossible to detect them. Our atmosphere either blocks or disturbs these faint signals; those that get through are drowned out by humanity's radio noise.Scientists have dreamed for decades of studying the cosmic dark ages from the moon's far side. Now multiple space agencies plan lunar missions carrying radio­wave­detecting instruments—some within the next three years—and astronomers' dreams are set to become reality.“If I were to design an ideal place to do low­frequency radio astronomy, I would have to build the moon,”says astrophysicist Jack Burns of the University of Colorado Boulder. “We are just now finally getting to the place where we're actually going to be putting these telescopes down on the moon in the next few years.”12. What's the purpose of building radio telescopes on the moon?A To research the big bang. B. To discover unknown stars.C. To study the cosmic dark ages.D. To observe the far side of the moon.13. What does the underlined word “probe” in Paragraph 3 possibly mean?A. Explore.B. Evaluate.C. Produce.D. Predict.14. Hydrogen radio emissions can't be detected on Earth because ________．A. there was no light in the dark agesB. they cannot possibly get through our atmosphereC. gigantic hydrogen clouds no longer fill the universeD. radio signals on Earth cause too much interference15. What can we infer from theunderlined sentence in the last paragraph?A. Scientists have to rebuild the moon.B. We will finally get to the moon's distant side.C. The moon is a perfect place to set up radio telescopes.D. A favorable research environment will be found on the moon.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。

a rXiv:as tr o-ph/9912258v114Dec1999Large-Scale Structure in the ROSAT North Ecliptic Pole Survey Christopher R.Mullis 11Institute for Astronomy,University of Hawaii,2680Woodlawn Drive,Honolulu,HI,96822USA.Abstract.We have used the ROSAT All-Sky Survey around the North Ecliptic Pole to construct a complete sample of galaxy clusters.The deep and contiguous nature of the survey affords us the opportunity to examine large-scale structure in the Universe on scales of hundreds of megaparsecs.We have identified over 99%of the 446X-ray sources in the survey area.The cluster sample consists of 65objects with redshifts approaching unity.Surprisingly,some 20%of the clusters exists in a wall-like structure at z=0.088spanning the entire 9◦×9◦survey region.This is a very significant extension of both the membership and the spatial extent to a known supercluster in this location.1Introduction Within the ROSAT All-Sky Survey (RASS)[7],the region around the North Ecliptic Pole (NEP)is special because the exposure here is deepest where the great circle scans overlap.Furthermore,galactic obscuration is not severe here at a galactic latitude of +30◦.Note the South Ecliptic Pole exposure depth is degraded by the South Atlantic Anomaly and the extragalactic sky in this direction is partially obscured by the Magellanic Clouds.Over the last nine years we have executed a systematic optical/NIR followup program of imaging and spectroscopy primarily at the Mauna Kea observatories.We have identified the physical nature of 99.3%of the 446X-ray sources detected at greater than 4sigma in the 9◦×9◦survey region.The initial observing phase of this project is now complete,and our emphasis is shifting to analyzing the statistically complete,X-ray selected samples.2The Cluster SampleWe have constructed the NEP cluster sample to examine X-ray cluster luminosity evolution and to characterize large-scale structure (LSS).The initial evolution results are presented by I.M.Gioia in these proceedings.Here we present the preliminary findings on LSS.We emphasize the cluster sample is unique in that it is both deep and con-tiguous.The sample consists of 65objects discovered in a 81square-degree region with a median sensitivity reaching 8×10−14erg s −1cm −2.Figure1:3D view of the near section of the conical NEP survey volume. The Earth is at the origin with the long,redshift axis through the NEP. Bright,large spheres are clusters and groups of galaxies.Small,dark spheres are AGN.The observed NEP cluster redshift distribution shows a striking feature at z=0.088.Fifteen clusters lie in the redshift interval0.07to0.10,an impressive 23%of the entire sample.This interval is4to5times more populated than expected which is significant at the4sigma level.The complex spans the entire survey area.3The NEP SuperclusterLSS has been previously seen in the direction of the NEP.Fourteen years ago Batuski&Burns[2]produced afinding list of candidate superclusters based ona percolation analysis of Abell clusters.They found an association of6Abellclusters approximately5◦from the NEP.Subsequently Burg et al.[3]reported5 X-ray cluster candidates detected in an early ROSAT pointed observation possibly related to this supercluster.IRAS mapped the sky in a fashion similar to ROSAT and hence has the same super-sensitivy at the NEP.Ashby et al.[1]endevoured to test starburst galaxy evolution with a sample of IRAS NEP galaxies but instead were overwhelmed by LSS.Fifteen galaxies,20%of their IR selected sample,turned up at z=0.088. Rinehart et al.[5]have expanded the IRAS survey to the same area on the sky as our survey,and they continue to see a“massive”sheet of galaxies,estimated to be3times as dense as the Great Wall.Afinal signature of structure in the NEP region is a low-z Lya absorber detected at z=0.089in the direction of a well-known QSO H1821+643from Tripp et al.[6].We have prepared an animated,three-dimensional“fly-through”of the NEP survey volume which is available over the web at /∼mullis/nep.html.Fig.1presents a demonstrative frame from the animation.Thanks to the ROSAT NEP Survey we have a much improved understanding of the NEP supercluster.We have more than doubled the physical size of the original Batuski&Burns supercluster and tripled the clus-ter content.We now know it to consist of at least20clusters and groups and12 NEP-detected AGN.It has a planar distribution of70×70×25h−1Mpc with a12◦extent on the sky.The NEP structure compares favorably in size and content relative to well-known objects such as the Great Wall and the Shapley Supercluster.It is not the largest nor the most dense but one of the most robustly sampled.Twenty X-ray emitting clusters of galaxies demark the highest density regions while the over sixty IRAS galaxies and AGN trace out the lower density domains.Furthermore, the door is open for the supercluster to be even larger;its depth and thickness are well-constrained but its breadth is currently not bound.We have only examined one side of the original NEP supercluster.4LSS at the NEP-Work in ProgressWe are currently working to chart the true extent of the NEP supercluster by discovering additional galaxy clusters beyond the original NEP survey region. Optical and X-ray followup observations will be used to examine the dynamical state of the structure.Is it,or any portion of it,gravitationally bound?Are alignments between clusters detectable in their X-ray contours?The supercluster’s edge-on aspect makes it an attractive candidate in which to search for X-ray filaments.Here we have largely concentrated on the NEP supercluster.But the rest of the cluster sample should not go unscrutinized.Lesser examples of clusters of clusters,potential superclusters,are visible in three-dimensional examinations.A correlation function analysis will quantify the degree of clustering present.The NEP AGN sample of211objects is another means for examining LSS. Though they are more sporadic markers compared to clusters,they reach to greater depths(z max∼4).Our sizable collection is free of the serious selection effects that plague non-X-ray selected samples.There are several instances of clusters of AGN visible in three-dimensions.The global clustering characteristic of the AGN will be determined via a correlation analysis.5SummaryExperimental design and serendipity have converged at the NEP to reveal a re-markable element of LSS in the X-ray Universe.The NEP supercluster is very large and likely even larger.A better reckoning of its girth and content have been revealed by X-rays.There are more LSS results to come from the NEP cluster and AGN samples.Finally and perhaps most importantly,the ROSAT NEP survey demonstrates the effectiveness of X-rays for studying LSS and opens the door for future X-ray survey missions to pursue the subject further.Details of the NEP supercluster discovery in the ROSAT NEP survey will be presented in a forthcoming paper by Mullis et al.[4]. Acknowledgements.The ROSAT NEP survey work is the subject of theauthor’s PhD thesis being completed under the supervision of Pat Henry,and is a collaboration with Isabella Gioia,Hans B¨o hringer,Ulrich Briel,Wolfgang Voges, and John Huchra.Partialfinancial support comes from NASA grant S99-GSRP-019.We wish to thank Manolis Plionis,Ioannis Georgantopoulos and the other LOC members for organizing such an intensive and enriching meeting in such a memorable locale.References[1]Ashby,M.L.N.,et al.1996,ApJ,456,428[2]Batuski,D.J.,and Burns,J.O.1985,AJ90,1413[3]Burg,R.,et al.1992,AA,259,L9[4]Mullis,C.R.,et al.1999,in preparation[5]Rinehart,S.,et al.1999,ApJ,submitted[6]Tripp,T.M.,Lu,L.,and Savage,B.D.,1998,ApJ508,200[7]Voges,W.,et al.1999,A&A349,389。

2020年深圳市实验学校高三英语上学期期末考试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AIt looks like 2017 is shaping up to be a record-breaking year in movie History. Here is a list of some of the year’s biggest blockbusters so far.Kong: Skull IslandA reboot (重启) of King Kong would normally get laughed at in this day and age, but it looks like this modem version of the story will be worth watching. With US actress Brie Larson and UK actor Tom Hiddleston in the mix, this film is set to be this year’s biggest monster tale.Release Date:3/10/17Beauty and the BeastDirector Bill Condon is bringing back a part of our childhood in live action, complete with the songs we all remember and love. With British stars Emma Watson and Dan Stevens leading thecast, the classic Walt Disney story already sounds like it’ll be a delight for both children and adults.Release Date:3/17/17The Fate of the FuriousThere was doubt that we’d even get a Fast 8, especially after the fitting ending US actor Paul Walker’s character was given at the end of Furious 7. Fans thought they’d never see Dom and the rest of the crew back in action, but thankfully, US star Vin Diesel himself confirmed that The Fate of the Furious is fueling up for another go.Release Date:4/14/17Spider-Man: HomecomingSpider Man is heading home to Marvel Studios for the first time. The movie will show us Peter Parker’s high school days, and will continue the threads we saw formed during his initial appearance in Captain America: Civil War. We know that Michael Keaton is playing The Vulture in this story, and that both Happy Hogan and Tony Stark, played by US actors Jon Favreau and Robert Downey Jr., are along for the ride.Release Date:7/7/171.Which of the following movies can’t you see on May Day?A.Kong: Skull Island.B.Beauty and the Beast.C.The Fate of the Furious.D.Spider-Man: Homecoming.2.What can we know about Beauty and the Beast?A.It is fueling up for another go.B.It is produced by Marvel StudiosC.It’ll show us Peter Parker’s school days.D.It’ll be enjoyable for both children and adults.3.What does the underlined word “cast” probably mean?A.Characters.B.Actors.C.Directors.D.Teachers.BIn June, 2021, a group of students from eight high schools in Winnipeg, the capital of Canada’s Manitoba province, will begin test-launching (试发射) a satellite the size of a Rubik’s cube.The one-kilogram Win-Cube satellite, named for its home city and its shape, will be put into low orbit. Once in space, it can perform for a few months or up to several years, communicating information that could help find the signs of earthquakes.There are 80 similar satellite projects worldwide, but this is the first high-school based program of its kind in Canada. 30 Manitoba high school students are having a hand in designing and building the satellite, in cooperation with aerospace (航空航天的) experts and 10 students from the University of Manitoba, and with support from two other organizations.The Win-Cube project is not something that goes on a piece of paper; it is real-world engineering, allowing high school students to have an opportunity to learn more about the exciting world of engineering through their participation in this challenging program. It is also taken as a wonderful example of the unique partnerships within Manitoba. Designing, building and launching a satellite with high-school participation will bring this world-class educational project into reality and Manitoba closer to space“These Manitoba high school students deserve congratulations for their enthusiasm, innovation (创新), and a strong love for discovery,” said Education, Citizenship and Youth Minister Peter Bjomson. “We want to make science more relevant, interesting and attractive to high school students by showing them how classroom studies can relate to practical experience in the workplace or, in this case, in space,” Bjomson added.The Win-Cube program is mainly aimed at inspiring a strong desire for discovery on the part of the students.It also shows Manitoba’s devotion to research and innovation and the development of a skilled workforce—all important drivers of knowledge-based economic growth.4. What can we learn from Mr. Bjomson? .A. Those Manitoba high school students are worth praising.B. The study of space can be practically made in classrooms.C. Manitoba high schools are famous for the study of space.D. Scientific research is too far away from high school students.5. What is the primary purpose of the project ? .A. To find the early signs of earthquakes.B. To relate studies to practical.C. To help high school students study real-world engineering.D. To inspire a strong desire for discovery among the students.6. According to the passage, what can we know about the Win-Cube satellite? .A. It is named after Manitoba and its shape.B. It is intended for international communication.C. It is designed like a Rubik’s cube both in shape and size.D. It is challenged by university students around the world.7. What may be the best title for the passage?A. Manitoba SchoolB. Win-Cube ProgramC. Space Co-operationD. Satellite LaunchingCThe far side of the moonis a strange and wild region, quite different from the familiar and mostly smooth face we see nightly from our planet. Soon this rough space will have even stranger features: it will be crowded with radio telescopes.Astronomers are planning to make the moon's distant side our newest and best window on the cosmic(宇宙的) dark ages, a mysterious era hiding early marks of stars and galaxies. Our universe was not always filled with stars. About 380,000 years after the big bang, the universe cooled, and the first atoms of hydrogen formed. Gigantic hydrogen clouds soon filled the universe. But for a few hundred million years, everything remained dark, without stars. Then came the cosmic dawn: the first stars flickered, galaxies came into existence and slowly the universe's large­scale structure took shape.The seeds of this structure must have been present in the dark­age hydrogen clouds, but the era has been impossible toprobeusing optical(光学的) telescopes—there was no light. And although this hydrogen produced long­wavelength(or low­frequency) radio emissions,radio telescopes on Earth have found it nearly impossible to detect them. Our atmosphere either blocks or disturbs these faint signals; those that get through are drowned out by humanity's radio noise.Scientists have dreamed for decades of studying the cosmic dark ages from the moon's far side. Now multiple space agencies plan lunar missions carrying radio­wave­detecting instruments—some within the next three years—and astronomers' dreams are set to become reality.“If I were to design an ideal place to do low­frequency radio astronomy, I would have to build the moon,”says astrophysicist Jack Burns of the University of Colorado Boulder. “We are just now finally getting to the place where we're actually going to be putting these telescopes down on the moon in the next few years.”8. What's the purpose of building radio telescopes on the moon?A To research the big bang. B. To discover unknown stars.C. To study the cosmic dark ages.D. To observe the far side of the moon.9. What does the underlined word “probe” in Paragraph 3 possibly mean?A. Explore.B. Evaluate.C. Produce.D. Predict.10. Hydrogen radio emissions can't be detected on Earth because ________．A. there was no light in the dark agesB. they cannot possibly get through our atmosphereC. gigantic hydrogen clouds no longer fill the universeD. radio signals on Earth cause too much interference11. What can we infer from theunderlined sentence in the last paragraph?A. Scientists have to rebuild the moon.B. We will finally get to the moon's distant side.C. The moon is a perfect place to set up radio telescopes.D. A favorable research environment will be found on the moon.DA single toy catches a child's attention for a limited period of time, but a box of items that allows a child to build their own toys will catch their imagination for years to come. This brilliant idea already exists in real productform, and it's called Toyi.Toyi is described as an eco-friendly creative building kit, and it recently won the well-known IF Design Award. It came from Istanbul, Turkish, where a young female designer named Elif Atmaca first came up with the idea for it when she wanted to help the kids living in disadvantaged areas. These children do not have access to the variety of interesting toys that wealthier children do.Toyi Atmaca's design allows children to transform what are around them into clever toys. It consists of sticks, junction parts, flexible connectors, toy body parts like feet, eyes, hands, and wheels that can be used to turn old water bottles, cups, boxes, towels, etc. into cute, clever, and unique playthings. This toy kit upcycles(升级利用) materials that would otherwise go to waste, turning a recycling bin into a treasure container.“Our initial target was to deliver Toyi kits to only disadvantaged children in Turkish,” Atmaca told the media. But during a research conducted with around300 children, .she realized that the restriction on being creative went beyond any boundary. “I saw that everything was planned and shaped by grown-ups, blocking the kids' imagination in a significant way,” said Atmaca.Atmaca concluded that each kid needed space where he or she could freely create. She explained the entire process should be left to kids’ creativity, reminding teachers and all grown-ups that child-led play was an excellent way for children to develop lifelong skills.Toyi's creators are now considering distributing the kits to as many children as possible around the world through different international NGOs. Atmaca notes that for each Toyi kit sold out, they will also donate one kit toa disadvantaged child through different partnerships around the world.12. Why did Atmaca design Toyi at first?A. To win the famous IF Design Award.B. To help poor kids make their own toys.C. To protect the environment in Istanbul.D. To recycle all the waste in the dustbin.13. Which is probably the product made with the toy kit of Toyi?A. A new picture of a young boy.B. A computer with high technology.C. A treasure container from a dustbin:D. A six-armed “robot” from a water bottle.14. How do the toy kits help improve the children's ability?A. It provides the kids various types of toys.B. It offers space for the kids’ creative minds.C. It changes the poor kids' living conditions.D. It teaches the kids to share joys with others.15. What is the new target for Atmaca and her partners?A. Donating toykits to more poor children.B. Selling toy kits to every kid in the world.C. Designing new toy kits for kids and adults.D. Doing further research on the kids' demands.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。

国开英语题the solid can change inThe Solid Can Change InIntroduction:The concept of "the solid can change in" is a common question in the National College English Test (CET). This topic explores the dynamic nature of solids and how they can transform under certain conditions. In this article, we will delve into the various aspects of this topic, providing a comprehensive understanding of the subject matter.Body:1. The Nature of Solids:1.1. Definition of a Solid: A solid is one of the three fundamental states of matter, characterized by a fixed shape and volume.1.2. Molecular Structure: Solids have a closely packed arrangement of molecules or atoms, resulting in strong intermolecular forces that maintain their shape.2. Factors Influencing Solid Transformation:2.1. Temperature: Changes in temperature can cause solids to undergo phase transitions, such as melting, sublimation, or crystallization.2.2. Pressure: Alterations in pressure can affect the arrangement of molecules in a solid, leading to changes in its physical properties.2.3. Composition: The composition of a solid, including the types and ratios of its constituent elements, can determine its behavior and potential for transformation.3. Solid-State Transformations:3.1. Melting: When solids are heated to their melting point, the intermolecular forces weaken, allowing the solid to transition into a liquid state.3.2. Sublimation: Some solids can directly transform into a gas without passing through the liquid phase. This process is known as sublimation.3.3. Crystallization: Under specific conditions, solids can form ordered arrangements of atoms or molecules, resulting in the formation of crystals.4. Applications of Solid-State Transformations:4.1. Industrial Processes: Solid-state transformations are crucial in various industrial processes, such as metal casting, glass manufacturing, and pharmaceutical production.4.2. Material Science: Understanding solid-state transformations is essential for designing and developing new materials with specific properties, such as superconductors or shape memory alloys.4.3. Environmental Impact: Solid-state transformations, such as the melting of glaciers due to global warming, have significant environmental implications.5. Importance of Studying Solid-State Transformations:5.1. Scientific Advancements: Investigating solid-state transformations contributes to scientific progress and the development of new technologies.5.2. Practical Applications: Knowledge of solid-state transformations enables us to manipulate materials for practical purposes, such as designing new drugs or improving manufacturing processes.5.3. Understanding Natural Phenomena: Many natural phenomena, including volcanic eruptions and the formation of minerals, are a result of solid-state transformations. Studying these processes helps us comprehend the world around us.Conclusion:In conclusion, the topic of "the solid can change in" explores the dynamic nature of solids and their ability to transform under various conditions. By understanding the factors influencing solid-state transformations and their applications, we gain valuable insights into the scientific, practical, and environmental aspects of this fascinating field.Studying solid-state transformations is not only essential for scientific advancements but also for comprehending the natural phenomena that shape our world.。

2019-2020学年成都七中嘉祥外国语学校郫县分校高三英语下学期期中考试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AFor some people, there’s no better companion than mans best friend-a dog. This four-legged pet can bring comfort and joy and provide much- needed exercise for you when it needs walkies! This probably explains why dog ownership increased last year because people spent more time at home during he CovID-I9 lockdown.However, as demand for a new dog increased, so did the price tag. Popular breeds, such as Cockapoos and Cocker Spaniels, saw even sharper price increases, and puppies have been selling for $3,000 or more.Animal welfare charities fearthat high prices could encourage puppy farming, smuggling (走私) or dog theft. An investigation found some breeders have been selling puppies and kittens on social media sites--something charities have called “extremely irresponsible”.But despite some new owners purchasing a dog legally, maybe from a rescue center or registered breeder, they’ve proved to be ill-prepared for life with a new pet, and the pet itself has found it hard tocome to terms withlife in a new home.Looking to the future, there are concerns about the welfare of these much-loved pets. Lan Alkin manager of the Oxfordshire Animal Sanct uary in the UK, notes: “At the moment, the dogs are having a great time, but separation anxiety could still surface when people go back to work.” And Cliare Calder from the UKs Dogs Trust rescue charity says, “The economic situation also means that some people may find they can’t afford to look aftera dog.” The message is not to buy a dog in haste and to pick one that fits into our lifestyle.1. The greater demand for dogs can cause the following problems except ________.A. illegal trade of dogsB. less dog farmingC. high prices of dogsD. online sale of dogs2. What does the underlined phrase"come to terms with"in paragraph 4 mean?A. Fit in withB. Go in forC. Make up for.D. End up with3. What can we learn from the last paragraph?A. Despite the problems, dogs are living happily.B. The writer has a positive attitude towards dogs future.C. Experts are worried that dogs will be unaffordable to people.D. The writer advises people to think twice before keeping dogs as pets.BA new study finds almost one third of the world’s population is overweight. Since 1980, obesity rates(肥胖率)in children and adults have doubled in 73 countries, making people more worried. And rates are increasing in many other countries. Obesity is increasing faster in children than adults in many nations, including Algeria, Turkey and Jordan, the report said. But the world's weight problem is growing in both rich and poor countries alike. Researchers say an increasing number of people are dying of related health problems in what they called a "disturbing global public health problem."Researchers studied health information from 1980 through 2015. They examined obesity rates, average weight gain in 195 countries. They found that obesity rates are three times greater among youth and young adults in countries like China, Brazil and India. Almost 108 million children and more than 600 million adults were found to be overweight. Egypt had the highest number of overweight adults in 2015. Vietnam had the least. In the same year, the United States had the highest number of overweight children, and Bangladesh had the least.Yet hunger remains a problem in many areas. The United Nations said that almost 800 million people, including 300 million children, go to bed hungry each night. Experts said poor diets and lack of physical activity are mainly to blame for the rising numbers of overweight people.Growing populations have led to rising obesity rates in poor countries. Often, poor people will eat processed(加工的) foods instead of choosing a diet rich in vegetables.The London-based Overseas Development Institute studied the price of food in five countries: Britain, Brazil, China, Mexico and South Korea. It found that the cost of processed foods like ice creamand hamburgers has fallen since 1990. But the cost of fresh fruits and vegetables has gone up.4. What do we know about obesity in the world?A. It is worryingB. It is given no attentionC. It has been successfully solvedD. It is more serious among old people5. Which country has the most overweight children in 2015?A. AmericaB. VietnamC. EgyptD. Bangladesh6. What is one of the reasons why people get overweight?A. HungerB. Poor dietC. Diets with vegetablesD. Eating too much fruit7. Which ofthe following can be the best title for the text?A. It’s Important to Have a Balanced DietB. How Can We Lose Weight and Keep Fit?C. Is It Necessary for Us to Eat Fresh Vegetables?D. Nearly One Third of People in the World Are Overweight.CThe far side of the moonis a strange and wild region, quite different from the familiar and mostly smooth face we see nightly from our planet. Soon this rough space will have even stranger features: it will be crowded with radio telescopes.Astronomers are planning to make the moon's distant side our newest and best window on the cosmic(宇宙的) dark ages, a mysterious era hiding early marks of stars and galaxies. Our universe was not always filled with stars. About 380,000 years after the big bang, the universe cooled, and the first atoms of hydrogen formed. Gigantic hydrogen clouds soon filled the universe. But for a few hundred million years, everything remained dark, without stars. Then came the cosmic dawn: the first stars flickered, galaxies came into existence and slowly the universe's large­scale structure took shape.The seeds of this structure must have been present in the dark­age hydrogen clouds, but the era has been impossible toprobeusing optical(光学的) telescopes—there was no light. And although this hydrogen produced long­wavelength(or low­frequency) radio emissions,radio telescopes on Earth have found it nearly impossible to detect them. Our atmosphere either blocks or disturbs these faint signals; those that get through are drowned out by humanity's radio noise.Scientists have dreamed for decades of studying the cosmic dark ages from the moon's far side. Now multiple space agencies plan lunar missions carrying radio­wave­detecting instruments—some within the next three years—and astronomers' dreams are set to become reality.“If I were to design an ideal place to do low­frequency radio astronomy, I would have to build the moon,”says astrophysicist Jack Burns of the University of Colorado Boulder. “We are just now finally getting to the place where we're actually going to be putting these telescopes down on the moon in the next few years.”8. What's the purpose of building radio telescopes on the moon?A To research the big bang. B. To discover unknown stars.C. To study the cosmic dark ages.D. To observe the far side of the moon.9. What does the underlined word “probe” in Paragraph 3 possibly mean?A. Explore.B. Evaluate.C. Produce.D. Predict.10. Hydrogen radio emissions can't be detected on Earth because ________．A. there was no light in the dark agesB. they cannot possibly get through our atmosphereC. gigantic hydrogen clouds no longer fill the universeD. radio signals on Earth cause too much interference11. What can we infer from theunderlined sentence in the last paragraph?A. Scientists have to rebuild the moon.B. We will finally get to the moon's distant side.C. The moon is a perfect place to set up radio telescopes.D. A favorable research environment will be found on the moon.DA new look for technology, Solestrom’s new high-tech swimsuits promise to stand out all summer long. First in their new products is Solestrom’s new SmartSwimCMUV Smart Bikini featuring a smart UV meter.The bikini collects UV information through a smart fabric belt and reports the UV index to the wearer with 0.01 exactness. The electronic parts are neatly built into the removable belt, and can be worn even underwater. Next in the list is a lower cost cousin, the SmartSwimCMUV Index Detector Bikini, which has UV sensitive beads that change color1 with the level of UV intensity. The reading gives more of a range rather than an exact number, but for those who simply need to know if the UV is low, moderate or high, this bikini fits the bill.It is now available in Banana Split, more color1 s may become available later in the season. And finally, what could be better than a beach tote with built in energy source? No need to suffer dead batteries in your MP3, just plug them into your Solar Powered Beach Tote for on-the-go mobile charging. This beach tote combines fashion and functionality all in one, lightweight and roomy beach accessory. A built in solar panel charges fully most small electronics in only 2-3 hours of sunlight. Pauline Butler, Media Relations Manger at Solestrom states “the concept of blending fashion and technology is growing at amazing rate, and we are right on the leading edge. Our products are new, creative and meet the need of the young and environmentally conscious crowd.’’Solestrom’s SmartSwinirCMproducts retail from $98. 99- $189. 99，and can be found in their online store, Solestrom. com.12. What is the passage mainly about?A. Famous Solestrom and its Products.B. Fashionable and Functional Beach Tote.C. Smart swimsuits and Solar Powered Beach Tote.D. Where and How to Buy SmartSwirn and the Beach Tote.13. Why are UV sensitive beads used in the SmartSwirnCMUV Index Detector Bikini?A. To give an exact number.B. To know if the UV is low, moderate or high.C. To change color1 with the level of UV intensity.D. To improve the equality of the UV Index Detector Bikini.14. What can we know about Solar Powered Beach Tote?A. Its parts are fixed in the belt.B. It combines lightweight and functionality.C. It can tell the weaver the level of UV intensity.D. It saves people from worrying about dead batteries in their MP3.15. Who will prefer the new products mentioned in the text?A. The young people and the environmentalists.B. People who like to travel all over the world.C. People who love to buy goods online.D. People interested in the latest bag.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。

如何解决大型结构的挑战英语作文How to Solve Challenges of Large-scale StructuresIntroductionLarge-scale structures, such as skyscrapers, bridges, dams, and stadiums, pose unique challenges in terms of design, construction, and maintenance. These challenges arise from the sheer size and complexity of these structures, as well as environmental factors such as wind, seismic activity, and corrosion. In this article, we will discuss some of the key challenges faced by large-scale structures and propose solutions to address them.ChallengesOne of the main challenges in designing large-scale structures is ensuring structural stability and safety. The forces acting on these structures, such as gravity, wind, and seismic activity, can be immense and must be carefully accounted for in the design process. Failure to do so can lead to catastrophic consequences, as seen in instances of bridge collapses or building collapses.In addition to structural stability, large-scale structures must also incorporate features that promote durability and longevity.For example, bridges and dams must be resistant to corrosion, while skyscrapers and stadiums must withstand the wear and tear of daily use. Without proper maintenance and upkeep, these structures can deteriorate over time and pose safety risks to the public.Another challenge faced by large-scale structures is the coordination of multiple stakeholders involved in the design, construction, and maintenance process. Architects, engineers, contractors, and government agencies must work together seamlessly to ensure that the project is completed on time and within budget. Communication and collaboration are key to overcoming this challenge and ensuring the success of the project.SolutionsTo address the challenge of structural stability and safety, engineers can use advanced modeling and simulation techniques to analyze the behavior of the structure under different loading conditions. This allows them to identify potential weak points and make design modifications to strengthen the structure. In addition, the use of high-quality materials and construction techniques can help improve the overall safety and durability of the structure.For durability and longevity, engineers can incorporate features such as protective coatings, corrosion-resistant materials, and regular maintenance schedules into the design of the structure. For example, bridges can be coated with protective paints to prevent rusting, while stadiums can be equipped with drainage systems to prevent water damage. By taking a proactive approach to maintenance, owners can extend the lifespan of the structure and reduce the risk of costly repairs in the future.To improve coordination among stakeholders, project managers can implement tools such as Building Information Modeling (BIM) software to streamline communication and collaboration. BIM allows all parties involved in the project to access a shared database of information, including design plans, construction schedules, and inspection reports. This ensures that everyone is on the same page and can work together more efficiently to achieve project goals.ConclusionIn conclusion, large-scale structures present unique challenges that require careful planning, coordination, and innovation to overcome. By addressing issues related to structural stability, durability, and stakeholder coordination,engineers and project managers can ensure the success of these projects and create structures that are safe, resilient, and sustainable for generations to come. By employing advanced technologies and best practices, we can continue to push the boundaries of what is possible in the world of large-scale construction.。

小学下册英语第五单元测验卷(有答案)考试时间：80分钟（总分:100）A卷考试人：_________题号一二三四五总分得分一、综合题(共计100题共100分)1. 填空题：The __________ (历史的研究) uncovers hidden narratives.2. 选择题：Which color is a stop sign?A. BlueB. YellowC. RedD. Green3. 选择题：Which type of tree produces acorns?A. PineB. MapleC. OakD. Birch答案:C4. 听力题：We are going ________ a trip.5. 填空题：The __________ is a large expanse of tundra in the Arctic. (冻土)6. 填空题：I can ______ (分析) my progress and set new goals.7. 填空题：My friend is a __________ (探险家).8. 听力题：Astrobiology studies the possibility of ______ in the universe.9. 填空题：The tiger is a powerful _______ (捕食者).10. 选择题：What is the capital of Japan?A. TokyoB. BeijingC. SeoulD. Bangkok答案:A11. 选择题：What is the term for a group of words that expresses a complete thought?A. PhraseB. SentenceC. ClauseD. Paragraph答案: B12. 选择题：What is 3 x 4?A. 10B. 11C. 12D. 13答案: C. 1213. 选择题：What is the capital city of Italy?A. RomeB. FlorenceC. VeniceD. Milan答案:A14. 选择题：What do we call the large, wild cat that lives in Africa?A. LeopardB. TigerC. LionD. Cheetah答案: C15. 选择题：What is the term for the effect of gravity on time?A. Time DilationB. Gravitational TimeC. Temporal DistortionD. Space-Time Continuum16. 听力题：A ____ lives in water and has a smooth body.17. 听力题：Asteroids are mostly found in the ______ Belt.18. 听力题：The chemical symbol for chromium is _______.19. ts can survive in very ______ (极端) conditions. 填空题：Some pla20. 听力题：A chemical bond is formed when atoms ______.21. 选择题：What is the name of the famous river in France?A. SeineB. ThamesC. DanubeD. Rhine答案:A22. 选择题：What is the name of the famous mouse created by Walt Disney?A. Donald DuckB. GoofyC. Mickey MouseD. Pluto23. 听力题：My friend is very ________.24. 选择题：What do you call the force that pulls objects toward the Earth?a. Magnetismb. Gravityc. Frictiond. Pressure答案:B25. 填空题：The __________ is a famous city known for its museums. (巴黎)26. 填空题：The _____ (mint) plant grows quickly.27. 填空题：The ancient Egyptians used ________ to write their history.28. 听力填空题：I believe in the importance of empathy. Understanding how others feel helps us build strong connections. I practice empathy by __________ when talking to friends.29. 听力题：The children are _____ in the playground. (playing)30. 填空题：I love to watch ______ while I eat dinner.31. 填空题：A ______ (植物的生态研究) can yield important information.32. 填空题：The _____ (果树) is full of ripe fruit.33. 选择题：What is the name of the plant that grows in water and has broad leaves?A. CactusB. LilyC. FernD. Rose答案：B34. 填空题：The _______ (鱼) has colorful scales.35. 填空题：The __________ is the habitat for polar bears. (北极)36. 听力题：A _______ can be used for making dyes.37. 选择题：What is the capital of Iceland?A. ReykjavíkB. OsloD. Tallinn38. 听力题：I can ________ (adapt) to changes quickly.39. 选择题：What is 3 + 5?A. 7B. 8C. 9D. 1040. 选择题：What instrument do you blow to make music?A. PianoB. FluteC. DrumD. Violin41. 填空题：The ______ (植物的物种多样性) is crucial for resilience.42. 选择题：What do we call the area of land that is known for its unique climate and vegetation?A. BiomeB. EcosystemC. HabitatD. Region答案: A. Biome43. 填空题：A well-tended garden can be a source of fresh ______ all year round.(一个精心照料的花园可以全年提供新鲜的食材。

2020-2021学年郑中国际学校高三英语二模试题及答案第一部分阅读（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AThailand is a country with a long and rich history. It is also one of those countries which have many traditions which modern times fortunately have not affected. Thailand is famous for its unique culture. It is well worth noting that Thai culture hasbeen handed down from one generation to the next.Thai Classical DanceThe inspiring culture includes local music and wonderful Thai dances. The dances of course have something to do with its deep-rooted Buddhist religion, fighting arts and beautiful clothing. Thai classical dance performances are generally performed by gracious (高雅的) Thai ladies wearing beautiful Thai local costumes. Most resort (旅游胜地) areas and many hotels frequently offer these Thai culture dance shows for foreign visitors.Thai GreetingThe unique Thai gesture of greeting another person, the wai, is especiallyone of the great aspects of Thai culture. The wai is when a person joins both hands to either head or chest level while bending their head slightly towards his hands. This way of greeting is especially done when a younger person greets an older person and it indicates a sign of respect to their elders. Employees would also wai their managers even if the manager would be younger than themselves.BangkokBangkok is the culture center of Thailand and has been the Thai capital since the end of the eighteenth century. Observing Thai culture in Bangkok can be great experience as the combination of modern times and traditions have created a kind of unique atmosphere. Bangkok offers a package of Thai culture which is shown by numerous beautiful Buddhist temples and many examples of modern Thai architecture.Bangkok National MuseumAnother location in Bangkok where one can enjoy and see Thai culture is at the famed Bangkok national museum, which offers tourists an opportunity to view national treasures and unique Thai art pieces with its culture feature dating back as early as the late sixteenth century.1.Thai classical dance is related to ________.A.its living level and educationB.its history and architectural styleC.its customsD.its religious belief2.In Thailand a worker uses the gesture, the wai , to greet________.A.his close friend.B.a young stranger.C.his younger colleagues.D.his young boss.3.What make Thai culture in Bangkok so unique?A.The long history and fine weather of Bangkok.B.The mixture of the modern culture and traditions.C.A number of beautiful Thai Buddhist templesD.Many examples of modern Thai architecture.BFor most thinkers since the Greek philosophers, it was self-evident that there is something called human nature, something that constitutes the essence of man. There were various views about what constitutes it, but there was agreement that such an essence exists—that is to say, that there is something by virtue of which man is man. Thus man was defined as a rational(理性的) being, as a social animal, an animal that can make tools, or a symbol-making animal.More recently, this traditional view has begun to be questioned. One reason for this change was the increasing emphasis given to the historical approach to man. An examination of the history of humanity suggested that man in our time is so different from man in previous times that it seemed unrealistic to assume that men in every age have had in common something that can be called “human nature.” The historical approach was strengthened, particularly in the United States, by studies in the field of cultural anthropology (人类学). The study of primitive peoples has discovered such a diversity of customs, values, feelings, and thoughts that many anthropologists arrived at the concept that man is born as a blank sheet of paper on which each culture writes its text. Another factor contributing to the tendency to deny the assumption of a fixed human nature was that the concept has so often been abused as a shield(盾牌) behind which the most inhuman acts are committed. In the name of human nature, for example, Aristotle and most thinkers up to the eighteenth century defended slavery. Or in order to prove the rationality and necessity of the capitalist form of society, scholars have tried to make a case for acquisitiveness, competitiveness, and selfishness as natural human characters. Popularly, one refers cynically（愤世嫉俗地）to “human nature” in accepting the inevitability of such undesirable human behavior as greed, murder, cheating and lying.Another reason for disbelief about the concept of human nature probably lies in the influence of evolutionarythinking. Once man came to be seen as developing in the process of evolution, the idea of a substance which is contained in his essence seemed untenable. Yet I believe it is precisely from an evolutionary standpoint that we can expect new insight into the problem of the nature of man.4. Most philosophers believed that human nature ________.A. is the quality distinguishing man from other animalsB. consists of competitiveness and selfishnessC. is something partly innate and partly acquiredD. consists of rationality and undesirable behavior5. The traditional view of “human nature” was strongly challenged by ________.A. the emergence of the evolutionary theoryB. the historical approach to manC. new insight into human behaviorD. the philosophical analysis of slavery6. According to the passage, anthropologists believe that human beings ________.A. have some characters in commonB. are born with diverse culturesC. are born without a fixed natureD. change their characters as they grow up7. The author mentioned Aristotle, a great ancient thinker, in order to ________.A. emphasize that he contributed a lot to defining the concept of “human nature”B. show that the concept of “human nature” was used to justify social evilsC. prove that he had a profound influence on the concept of “human nature”D. support the idea that some human characters are inherited.CThe far side of the moonis a strange and wild region, quite different from the familiar and mostly smooth face we see nightly from our planet. Soon this rough space will have even stranger features: it will be crowded with radio telescopes.Astronomers are planning to make the moon's distant side our newest and best window on the cosmic(宇宙的) dark ages, a mysterious era hiding early marks of stars and galaxies. Our universe was not always filled with stars. About 380,000 years after the big bang, the universe cooled, and the first atoms of hydrogen formed. Gigantic hydrogen clouds soon filled the universe. But for a few hundred million years, everything remained dark, without stars. Then came the cosmic dawn: the first stars flickered, galaxies came into existence and slowly the universe's large­scale structure took shape.The seeds of this structure must have been present in the dark­age hydrogen clouds, but the era has beenimpossible toprobeusing optical(光学的) telescopes—there was no light. And although this hydrogen produced long­wavelength(or low­frequency) radio emissions,radio telescopes on Earth have found it nearly impossible to detect them. Our atmosphere either blocks or disturbs these faint signals; those that get through are drowned out by humanity's radio noise.Scientists have dreamed for decades of studying the cosmic dark ages from the moon's far side. Now multiple space agencies plan lunar missions carrying radio­wave­detecting instruments—some within the next three years—and astronomers' dreams are set to become reality.“If I were to design an ideal place to do low­frequency radio astronomy, I would have to build the moon,”says astrophysicist Jack Burns of the University of Colorado Boulder. “We are just now finally getting to the place where we're actually going to be putting these telescopes down on the moon in the next few years.”8. What's the purpose of building radio telescopes on the moon?A To research the big bang. B. To discover unknown stars.C. To study the cosmic dark ages.D. To observe the far side of the moon.9. What does the underlined word “probe” in Paragraph 3 possibly mean?A. Explore.B. Evaluate.C. Produce.D. Predict.10. Hydrogen radio emissions can't be detected on Earth because ________．A. there was no light in the dark agesB. they cannot possibly get through our atmosphereC. gigantic hydrogen clouds no longer fill the universeD. radio signals on Earth cause too much interference11. What can we infer from theunderlined sentence in the last paragraph?A. Scientists have to rebuild the moon.B. We will finally get to the moon's distant side.C. The moon is a perfect place to set up radio telescopes.D. A favorable research environment will be found on the moon.DWhen I was seven my father gave me a Timex, my first watch. I loved it, wore it for years, and haven’t had another one since it stopped ticking a decade ago. Why? Because I don’t need one. I have a mobile phone and I’m always near someone with an iPod or something like that. All these devices (装置) tell the time — which is why, if youlook around, you’ll see lots of empty wrists; sales of watches to young adults have been going down since 2007. This is ridiculous. Expensive cars go faster than cheap cars. Expensive clothes hang better than cheap clothes. But these days all watches tell the time as well as all other watches. Expensive watches come with extra functions — but who needs them? How often do you dive to 300 metres into the sea or need to find your direction in the area around the South Pole? So why pay that much of five years’ school fees for watches that allow you to do these things?If justice were done, the Swiss watch industry should have closed down when the Japanese discovered how to make accurate watches for a five-pound note. Instead the Swiss reinvented the watch, with the aid of millions of pounds’ worth of advertising, as a message about the man wearing it. Rolexes are for those who spend their weekends climbing icy mountains; a Patek Philippe is for one from a rich or noble family; a Breitling suggests you like to pilot planesacross the world.Watches are now classified as “investments” (投资). A 1994 Philippe recently sold for nearly £ 350,000, while 1960s Rolexes have gone from £ 15,000 to £ 30,000 plus in a year. But a watch is not an investment. It’s a toy for self-satisfaction, a matter of fashion. Prices may keep going up — they’ve been rising for 15 years. But when of fashion. Prices may keep going up — they’ve been rising for 15 years. But when fashion moves on, the owner of that £ 350,000 beauty will suddenly find his pride and joy is no more a good investment than my childhood Times.12. The author don’t need another watch because ________.A. he don’t like wearing a watchB. he has mobile phone and can ask someone for helpC. he has no sense of timeD. he thinks watches too expensive13. It seems ridiculous to the writer that________.A. expensive watches with unnecessary functions still sellB. expensive clothes sell better than cheap onesC. cheap cars don’t run as fast as expensive onesD. people dive 300 metres into the sea14. What can be learnt about Swiss watch industry from the passage?A. It wastes a huge amount of money in advertising.B. It’s hard for the industry to beat its competitors.C. It targets rich people as its potential customers.D. It’s easy for theindustry to reinvent cheap watches.15. Which would be the best title for the passage?A. Timex or Rolex?B. My Childhood TimexC. Watches? Not for Me!D. Watches----a Valuable Collection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。