广西贵港市覃塘区覃塘高级中学2020-2021学年高二下学期3月月考3月英语试卷

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广西覃塘高中2018-2019学年高一下学期3月月考英语试题 Word版含答案

覃塘高中2019年春季期3月份月考试卷高一英语第一部分：听力（共两节，满分30分)第一节（共5小题；每小题1.5分，满分7.5分）听下面5段对话。

每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。

听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。

每段对话仅读一遍。

1. What happened to Annie?A. She hurt her arm.B. She hurt her leg.C. She hurt her head.2. How does the woman feel about the new house?A. Excited.B. Satisfied.C. Disappointed.3. What is the probable relationship between the speakers?A. Teacher and student.B. Schoolmates.C. Workmates.4. What are the speakers mainly talking about?A. Watching TV.B. Buying a TV.C. Placing the TV.5. How does the woman want to get to the bank?A. On foot.B. By car.C. By bus.第二节（共15小题；每小题1.5分，满分22.5分）听下面5段对话或独白。

每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。

听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。

每段对话或独白读两遍。

听第6段材料，回答第6、7题。

6. Where is the man from?A. America.B. England.C. Australia.7. What time will the director meet the man on Monday morning?A. At 8:00B. At 9:00C. At 10:00听第7段材料，回答第8至10题。

广西省贵港市覃塘高级中学2017-2018学年高二3月月考英语试题

覃塘高中2018年春季期3月份月考试卷高二英语第一节(共5小题; 每小题1. 5分，满分7. 5分)听下面5 段对话，每段对话后有一个小题。

从题中所给的A, B, C 三个选项中选出最佳选项，并标在试卷的相应位置。

听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。

每段对话仅读一遍。

例：How much is the shirt?A. £19.15.B. £9.15.C. £9.18.答案是C。

1. What does the woman want to do?A. Find a place.B. Buy a map.C. Get an address.2. What will the man do for the woman?A. Repair her car.B. Give her a ride.C. Pick up her aunt,3. Who might Mr. Peterson be?A. A new professor.B. A department head.C. A company director.4. What does the man think of the book?A. Quite difficult.B. Very interesting.C. Too simple.5. What are the speakers talking about?A. Weather.B. Clothes.C. News.第二节(共15小题;每小题1分, 满分15分)听下面5段对话或独白。

每段对话或独白后有几个小题, 从题中所给的A、B、C 三个选项中选出最佳选项, 并标在试卷的相应位置。

听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟;听完后, 各小题給出5秒钟的作答时间。

每段对话或独白读两遍。

听第6 段材料, 回答第6、7 题。

广西省覃塘高中2017-2018学年高二第三次月考英语试题 Word版含答案

覃塘高中2018年春季期第3次份月考试卷高二英语第一节(共5小题; 每小题1. 5分，满分7. 5分)听下面5 段对话，每段对话后有一个小题。

从题中所给的A, B, C 三个选项中选出最佳选项，并标在试卷的相应位置。

听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。

每段对话仅读一遍。

例：How much is the shirt?A. £19.15.B. £9.15.C. £9.18.答案是C。

每段对话或独白后有几个小题, 从题中所给的A、B、C 三个选项中选出最佳选项, 并标在试卷的相应位置。

听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟;听完后, 各小题給出5秒钟的作答时间。

每段对话或独白读两遍。

听第6 段材料, 回答第6、7 题。

2018-2019学年广西贵港市覃塘高级中学高一3月月考英语试题

2018-2019学年广西贵港市覃塘高级中学高一3月月考英语试题高一英语第一部分：听力（共两节，满分30分)第一节（共5小题；每小题1.5分，满分7.5分）听下面5段对话。

每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。

听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。

每段对话仅读一遍。

每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。

听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。

每段对话或独白读两遍。

听第6段材料，回答第6、7题。

6. Where is the man from?A. America.B. England.C. Australia.7. What time will the director meet the man on Monday morning?A. At 8:00B. At 9:00C. At 10:00听第7段材料，回答第8至10题。

广西贵港市覃塘区覃塘高级中学2020-2021学年高二下学期3月月考3月英语试卷

覃塘高中2021年春季期3月月考高二英语试卷第Ⅰ卷第一部分听力(共两节，满分30分)第一部分：听力(共两节，满分30分)第一节(共5小题；每小题1.5分，满分7.5分)听下面5段对话。

每段对话后有一个小题，从题中所给的A、B、C 3个选项中选出最佳选项，并标在试卷的相应位置。

听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一个小题。

每段对话仅读一遍。

1. What will the woman do this afternoon?A. Do some exercise.B. Go shopping.C. Wash her clothes.2. Why does the woman call the man?A. To cancel a flight.B. To make an apology.C. To put off a meeting.3. How much more does David need for the car?A. $ 5,000.B. $20,000.C. $25,000.4. What is Jane doing?A. Planning a tour.B. Calling her father.C. Asking for leave.5. How does the man feel?A. Tired.B. Dizzy.C. Thirsty.第二节(共15小题；每小题1.5分，满分22.5分)听下面5段对话或独白。

每段对话或独白后有几个小题，从题中所给的A、B、C 3个选项中选出最佳选项，并标在试卷的相应位置。

听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟。

听完后，各小题将给出5秒钟的作答时间。

每段对话或独白读两遍。

听第6段材料，回答第6、7题。

6. What does Jack want to do?A. Watch TV.B. Play outside.C. Go to the zoo.7. Where does the conversation probably take place?A. At home.B. In a cinema.C. In a supermarket.听第7段材料，回答第8至10题。

广西贵港市覃塘高级中学18-19学年度高二3月月考——英

广西贵港市覃塘高级中学2018—2019学年度下学期3月月考高二英语试题第一部分听力（共两节，满分30分）第二部分阅读理解(共两节，满分40分)第一节（共15小题；每小题2分，满分30分）听下面5段对话。

每段对话后有一个小题，从题中给出的A, B, C三个选项中选出最佳选项，并标在试卷的相应位置。

听完每段对话后，你都有10秒钟的时间回答有关小题和阅读下一小题。

每段对话仅读一遍。

例：How much is the shirt?A. ￡19.15.B. ￡9.15.C. ￡9.18. 答案是B。

1. On which day will the woman return to work?A. Wednesday.B. Friday.C. Next Wednesday.2. What time is it now?A. About 6:00 p.m.B. About 5:40 p.m.C. About 5:20 p.m.3. What does Mr. Black look like?A. He has black hair.B. He is short.C. He wears glasses.4. What does the woman dislike about her photo?A. Her eyes.B. Her hair.C. Her dress.5. Where does the conversation take place?A. At a restaurant.B. At the woman’s house.C. At a garden.第二节（共15小题；每小题1.5分，满分22.5分）听下面5段对话或独白。

每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。

听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。

2021年广西省贵港市高级中学高三英语三模试卷及参考答案

2021年广西省贵港市高级中学高三英语三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.BCompared to dogs, cats are often considered to be aloof（冷漠的）with respect to their human owners. It is usual for them to be indifferent（无动于衷的）when humans calltheir names. Are we sure that they don’t understand human voices at all?A recent study published in the journal of Scientific Reports suggests that we’ve been fooled. Japanese scientists found that cats can recognize their names if their owners regularly use them. In the study, scientists recruited 78 domestic cats. They played recordings of voices of their owners saying five words: the first four words were random nouns thatresembledtheir names while the final word was the cat’s name. Then they observed the cats’ responses, if there were any.Most of cats moved their ears or heads when they heard their names, while they made no response to other words. That suggested, “cats were paying attention to you, what you say and what you do,” John Bradshaw, an expert on human-animal interactions（互动）at the University of Bristol, UK, told The Times. “And cats were just as good as dogs at learning,” she added.In the study, when people called their names, cats often associated (联系) the words with rewards, such as food or play, or with “punishments” such as having a bath or going to the vet . This made cats sensitive (敏感的) to words. After the cats had been called several times, they could respond to the words. But the scientists added that while dogs have evolved（进化）to follow their owners’ orders, cats have not. Although cats appear to be distant, they do have special relationships with their owners.According to study co-author Atsuko Saito, cats have evolved not to show their emotions as a survival method. One example is illness, which they tend to hide because “in the wild, no one can rescue them” and predators (捕食性动物) are more likely to pay attention to them, Saito explained.However, technology may help bridge the communication gap between cats and us. There are now mobile apps available to explain what their meows mean. So, the next time you hear “meow, meow”,your cat may be telling you: “Hi, you haven’t cleaned my litter box recently.”4. What did the recent study find about cats?A. Cats can recognize their names.B. Cats are cleverer than dogs.C. Cats learn more slowly than dogs.D. Cats are willing to follow orders.5. What does the underlined word“resembled”in paragraph 2 probably mean?A. were limited toB. were different fromC. were similar toD. were away from6. Why do cats appear distant to their human owners?A. They associate words with punishments.B. They want to protect themselves from harm.C. They are not sensitive to the human voice.D. They don’t pay much attention to their surroundings.7. What can be inferred from the last paragraph?A. It is difficult to understand cats’ meows.B. Interaction with your cats is very important.C. Cats do have good relationships with their owners.D. We may know cats better with the help of technology.CHardware in general,and smartphones in particular,have become a huge environmental and health problem in the Global South's landfill sites(垃圾填埋场).Electronic waste(e-waste) currently takes up 5 percent of all global waste,and it is set to increase rapidly as more of us own more than one smartphone,laptop and power bank They end up in places like Agbogbloshie on theoutskirts of Ghana's capital,Accra. It is the biggest e-waste dump in the world,where 10,000 informal workers walk through tons of abandoned goods as part of an informal recycling process.They risk their health searching for the precious metals that are found in abandoned smartphones.But Agbogbloshie should not exist.The Basel Convention,a 1989 treaty,aims to prevent developed nations from unauthorized dumping of e-waste in less developed countries.The e-waste industry,however,circumventsregulations by exporting e-waste labelled as "secondhand goods' to poor countries like Ghana,knowing full well hat it is heading for a landfill site.A recent report found Agbogbloshie contained some of the most dangerous chemicals.This is not surprising: smartphones contain chemicals like mercury（水银）,lead and even arsenic(砷).Reportedly, one egg from a free-range chicken in Agbogbloshie contained a certainchemical which can cause cancer and damage the immune system at a level that's about 220 times greater than a limit set by the European Food Safety Authority(EFSA).Most worryingly,these poisonous chemicals are free to pollute the broader soil and water system.This should concern us all, since some ofGhana's top exports are cocoa and nuts.Some governments have started to take responsibility for their consumers' waste.For example,Germanyhas started a project that includes a sustainable recycling system at Agbogbloshie,along with a health clinic for workers.However,governments cannot solve the problem alone, as there is an almost limitless consumer demand for hardware,especially when governments' green policies are focused on issues like climate change.Only the manufacturers can fix this.A more economically sustainable and politically possible solution is through encouraging hardware manufacturers to make the repair, reuse and recycling of hardware profitable,or at least cost-neutral8. What can we infer from Paragraph 2?A. Electronic waste requires more landfill sites acrossGhana.B. Electronic waste is too complex to get fully recycleC. Electronic products need to be improved urgentlyD. Electronic pollution is a burning question in Agbogbloshie9. What does the underlined word "circumvents"in Paragraph 3 mean?A. AbolishesB. TightensC. Brings inD. Gets around10. What should be the best concern according to the text?A. The thread of polluted food around the worldB. The damage of chicken’s immune systemC. The lack of diversity inGhana's exportsD. The violation of EFSA's standards11. What does the author think is the best solution to the e-waste problem?A. Manufacturers' developing a sustainable hardware economyB. Governments’ adjusting their green policies about e-waste.C. Reducing customers' demands for electronic productsD. Manufacturers’ urging the government to make effective policies to ensure more profit.DIdentifying the chemical makeup of pigment (色素) used in ancient documents, paintings, and watercolor1 s is criticalto restoring and conserving the precious artworks. However, despite numerous efforts, scientists had been unable to determine the source of folium, a popular blue dye used to color1 manuscripts (手稿) in Europe during the middle ages — from the 5th to the 15th century. Now, a team of researchers fromPortugalhas finallyuncovered the mysterious ingredient responsible for the gorgeous blueish-purple color1 that helped bring ancient illustrations and texts to life.The research team began byporing overinstructions penned by European dye makers from the 12th, 14th, and 15th centuries. They found what they were seeking in a 15th-century text entitledThe Book on How to Make All the Color Paints for Illuminating Books. However, translating the instructions was no easy task. It was written in the now extinct Judaeo-Portuguese language, and though the source of the dye was traced back to a plant, no name was mentioned.However, by piecing together suggestions from the text, the scientists were able to determine that the dye was made from the bluish-green berries of the chrozophora tinctoria plant. After an extensive search, the team found a few varieties of the plant growing along the roadside near the town ofMonsarazin southPortugal.The detailed instructions gave the researchers critical clues — including the best time to pick the berries. “You need to squeeze the fruits, being careful not to break the seeds, and then to put them on linen (亚麻).” The scientist says the detail was important since broken seeds polluted the pigment, producing an inferior quality ink. The dyed linen, which was left to dry, was an efficient way to store and transport the pigment during ancient times. When needed, the artist would simply cut off a piece of the cloth and dip it with water to squeeze out the blue color1 .Once the key ingredient had been identified, the researchers began to determine the dye’s molecular structure. To their surprise, they found that folium was not like any other known permanent blue dyes — it was an entirely new class of color1 , one they named chrozophoridin. “Chrozophoridin was used in ancient times to make a beautiful blue dye for painting.” the team wrote in the study. “Thus, we believe that this will not be our final word on this amazing plant and its story and that further discoveries will follow soon.”12. The primary purpose of the study is to ________.A. restore and conserve ancient precious artworksB. determine the substance making up the foliumC. prove the ancient dye-making technique was organicD. identify which class of color1 folium belongs to13. The underlined phrase “poring over”in the second paragraph means ________.A. discussing publiclyB. testing repeatedlyC. passing directlyD. reading carefully14. What can be learned about the blue dye folium?A. It was essentially an inferior type of ink.B. It was the only kind made from wild berries.C. It could be carried and used easily.D. It was carefully squeezed from broken seeds.15. The article is mainly about _________.A. how the mystery ofa thousand-year-old blue dye was solvedB. why the researchers took the trouble to recreate the dyeC. what needs to be done to make an organic dye from a plantD. when and where the discovery of the dye was made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。

广西贵港市覃塘区覃塘高级中学2021学年下学期高二年级3月月考英语试卷

广西贵港市覃塘区覃塘高级中学2020-2021学年下学期高二年级3月月考英语试卷第Ⅰ卷第一部分听力共两节，满分30分第一节共5小题；每小题分，满分分听下面5段对话。

每段对话后有一个小题，从题中所给的A、B、C 3个选项中选出最佳选项，并标在试卷的相应位置。

听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一个小题。

每段对话仅读一遍。

1 What will the woman do this afternoonA Do some eerciseB Go shoMexico CityMemphisBostonSt LouisBeale Street Singapore SingaporeSingaporeMarina BaySingaporeMaxwellRoadHawkerCenterChinatownMerlion ParkSingaporeMarina BayMerlion ParkSouth AfricaPort ElizabethPort Elizabethe a lot more common in the net few years Social robots are about to bring technology to the everyday world in a more humanied way, said Cynthia Breaeal, chief scientist at the robot commendations for different items based on what the customer is shoes to sitting mon were sitting cross-legged, neeling and the deeTanzaniaTeesside University, UK42 ae41 A curious about B interested in C aware of D careful with42 A cure B munication C transfortable53 A yet B just C still D even54 A shown B Summer Palacee and go Also, the disabled will ay proposalsYours sincerely,Li Hua。

广西贵港市覃塘高级中学2022_2022学年高一英语3月月考试题202222080214

广西贵港市覃塘高级中学2022-2022学年高一英语3月月考试题第一部分听力〔共两节，总分值30分〕听力局部单独链接第二局部阅读理解〔共两节, 总分值40分〕第一节〔共15小题；每题2分, 总分值30分〕阅读以下短文，从每题所给的A、B、C和D四个选项中，选出最正确选项。

AKBG84 is a one-of-a-kind girl band in Japan consisting of 33 singing and dancing grannies,with an average age of 84. The oldest member. Haru Yamashiro.is 97 years old!The new band,based in the remote island of Kohama in Okinawa,is a huge hit in the country---so much so that the members are rather shocked by their success. Their first single----titled Come on and Dance, Kohama Island----has made it to the top of the charts,and they've just completed a sell-out tour of Japan.“We felt like stars in Tokyo, "added 86-year-old Hideko Kedamori. "Everyone in the audience had a big smile,which gave us the energy to sing our hearts out.We're blessed to have been born in Kohama. Our lyrics are about the island and nature----whales in the sea spouting or dolphins doing somersaults(空翻〕。

2020年广西省贵港市高级中学高三英语月考试卷及答案

2020年广西省贵港市高级中学高三英语月考试卷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ALocated besideLake Geneva, the Olympic Museum houses more than 10,000 artificial objects and hours of interactive contents highlighting some of the best moments during the Olympics. Here are some of the museum’s most moving moments.The Olympic ParkThe journey through the Olympic Museum begins in the Olympic Park, an 8,000-square-meter outdoor area in front of the museum overlooking Lake Geneva and theAlps. The park contains artwork and sculptures that show respect to the world of sport.The first Olympic symbolThe “Olympic Rings” flag was designed by Coubertin in 1913. The rings represent the five continents that participate in the Olympics: Africa, Asia,America,AustraliaandEurope. The six color1 s include at least one color1 that is represented on the flag of every country.The stadiumsThe stadiums that host the Olympic Games are as much of a celebration of design as the games are a celebration of sportsmanship. Guests can explore plans and models of Olympic stadiums’ past and present, including one of the games’ most attractive stadiums, the Bird’s Nest from Beijing 2008 Olympics.The Olympic medalsHave you ever wondered what an Olympic medal looks like? The Olympic Museum has a room that houses every bronze, silver, and gold medal from every Olympic Games dating back to the first modern Olympics of 1896. Each medal design is a unique representation of the year and location in which the games were held.1.Which moment do you see first when exploring the Olympic Museum?A.The Olympic Park.B.The first Olympic symbol.C.The stadiums.D.The Olympic medals.2.What do you know from The first Olympic symbol?A.The first modern Olympics took place inGreece.B.There are six color1 s on the flag of every country.C.Australia used to be the largest continent on earth.D.The “Olympic Rings” flag was created in 1913.3.What can you do in the section of The stadiums?A.Admire the view ofLake Geneva.B.Meet some famous designers.C.Enjoy the model of the Bird’s Nest.D.Talk with guests of honour.BIn a world simultaneously on fire and underwater thanks to climate change, scientists have announced some good news: Several important tuna (金枪鱼) species have stepped back from the edge of extinction.The unexpectedly fast recovery speaks to the success of efforts over the past decade to end overfishing. But tuna are not the only species scientists are discussing at the 2021 World Conservation Congress in Marseille, France, which is organized by the International Union for Conservation of Nature (IUCN). Researchers caution that many other marine species remainimperiled. For instance, more than a third of the world's sharks remain threatened with extinction due to overfishing, habitat loss, and climate change.“I think the good news is that sustainable fisheries are possible,” says Beth Polidoro, a marine biologist at Arizona State University. “We can eat fish in a proper way and without driving the population to the point where it is on the road to collapse or extinction."At the same time, she warned that the changes in status should not be an reason to catch as many fish as we want.The IUCN, which ranks the world's most endangered species on its Red List of Threatened Species and is backed by 16,000 experts across the globe, also announced at the meeting that some animals are moving in the other direction, onto the Red List. One notable example is the Komodo dragon, an island-living lizard at particular risk from climate change.For the better part of two decades, Polidoro has been part of a specialist group tasked with assessing the statuses of more than 60 species of tuna and billfishes for the IUCN.Her team announced its first comprehensive findings in 2011, mentioning that a number of commercially fished tuna species were dangerously close to disappearing.According to the new data, the Atlantic bluefin tuna (Thunnus thynnus), once listed as endangered, now qualifies for a status of least concern. As does the yellowfin tuna (Thunnus albacares) and albacore tuna (Thunnus alalunga), which were both considered near-threatened the last time they were assessed.4. What does the underlined word “imperiled” in paragraph 2 mean?A. EndangeredB. ConservedC. ExtinctD. Safe5. What can we infer from Polidoro's words?A. Too many fish are being eaten by human beings.B. Eating fish does not necessarily lead to its extinction.C. Fish species are on the edge of dying out if no action is taken.D. The situation of underwater species are changing for the better.6. Which of following statement is true according to the passage?A. Some Tuna species are wiped out by overfishing.B. Tuna are ranked as the world's most endangered species.C. Climate change poses a threat to most species in water and on land.D. Three tuna species have been saved from extinction according to the data.7. What's the main idea of the passage?A. Some tuna species are reported endangered recently.B. IUCN has helped saved a great many marine species.C. Improvement has been made in saving marine species.D. Great efforts should be made to conserve species underwater.CThermoelectric generators turn waste heat into electricity without producing greenhouse gas emissions, like a free lunch. But the high cost of these devices has prevented their widespread use. Now, researchers have found a way to make cheap thermae-lectrices that work just as well. The work could pave the way for greener car engines, and other energy-generating devices.“This looks like a very smart way to realize high performance,” says Li-Dong Zhao, a materials scientist. He notes there are still a few more steps before these materials can become high-performing. However, he says, “This will be used in the not too far future.”Thermoelectrics are semiconductor devices placed on a hot surface. That gives them a hot side and a cool side. If a device allows the hot side to warm up the cool side, the electricity stops flowing. A device’s success at preventing this, as well as its ability to conduct electrons, feeds into a score known as the figure of merit, or ZT.Researchers have produced thermoelectric materials with increasing ZTs. The record came in 2014 when Mercouri Kanatzidis came up with a tin selenide with a ZT of 3.1. Yet the material was too fragile to work with. “For practical applications, it’s a non-star-ter,” Kanatzidis says.Getting through that door will still take some time. The tin selenide the team makes is mixed with Na,creating a “p-type” material that conducts positive charges. To make working devices, researchers also need an “n-type” version to conduct negative charges.Zhao’s team is now working on making an n-type version. Once successful, researchers should have a clear path to making a new generation of super-efficient thermoelectric genera-tors. Those could be installed everywhere from automobile exhaust pipes to water heaters and industrial smelters toscavengesome of the 65% of fossil fuel energy that winds up as waste heat.8. The first paragraph wants to tell us________.A. The wide use of thermoelectric generatorsB. The devices of current thermoelectric generatorsC. The reason why researchers make cheap thermoelectricsD. The greener car engines that contribute to environmental protection9. How does Li-Dong Zhao feel about cheap thermoelectric generators?A. Indifferent.B. Optimistic.C. Critical.D. Worried.10. What do you know about the research in 2014 from paragraph 4 and 5?A. It was far from a success for practical applications.B. A tin selenide with a ZT of 3.1 can be easy to work with.C. Researchers made an “n-type” version to make working devicesD. A “p-type” material made from the tin selenide conducts negative charges11. What does the underlined word “scavenge” in the last paragraph mean?A. Recycle.B. Produce.C. Clean.D. Increase.DJerry Lawson had a love of science and invention from a very young age. And, with the support of his family and teachers, he took that love and helped change the world for billions of people, when he invented the modem video game cartridge.Both of Jerry's parents supported his love of science and invention. His father, a longshoreman, was a science fan and encouraged Jerry to always experiment with things. Jerry's first-grade teacher helped encourage him on his path to be someone influential similar to George Washington Carver, a great AfricanAmerican inventor. His first love in school was chemistry but he ended up liking electronics（电子学）even more.He earned an amateur ham radio license at age 13 and built his own radio station in his room, with an antenna hanging out of his window! Jerry earned money from fixing television sets, visiting people's homes forinhouse repair, and also working at local electronics stores. Jerry also made walkie-talkies and sold them to other kids. He spent many Saturdays at an electronics store that had all of the parts he needed for his inventions. He would use his small allowance and money he earned to buy parts to help fuel his inventions.When he was a young adult, Jerry joined Fairchild Semiconductor as an engineer. During this time, he created his own video arcade game（街机游戏），Demolition Derby, in his garage.A few years later, Jerry was asked to work on a secret project. Not even his boss was allowed to know what he was doing! What it turned out to be was that he was designing the Fairchild Channel F video gameconsole（游戏控制器）and leading the team that invented the video game cartridge. This was the first of its kind and enabled kids around the world to affordably play video games at home.Just like with automobiles，many advances have occurred since the inventionof video games. Video games are now one of the biggest forms of entertainment in the world. But all of this would not have been possible without the vision, passion, and skill of Jerry Lawson and his learn.12. How did Jerry earn money when he was a teenager?A. By running his radio station.B. By selling television sets.C. By repairing things for others.D. By making electronic parts.13. Before Jerry's secret project, playing video games at home was_____.A. expensiveB. harmfulC. commonD. tiring14. What does the author mainly tell us in the last paragraph?A. Jerry Lawson and his team can be more skillful.B. Jerry Lawson is important to the game industry.C.Many advances have taken place in the automobile industry.D. Video games are now the most popular form of entertainment.15. What can be the best title for the text?A. Video Gaming-An Important IndustryB. Game Console-Key to Home Video GamesC. Jerry Lawson-Father of Modern GamingD. Support and Encouragement-Necessary for Success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。

广西贵港市高二英语3月月考试题（无答案）

广西贵港市2016-2017学年高二英语3月月考试题（无答案）第Ⅰ卷第一部分听力 (共两节，满分30分)第一节(共5小题，每小题1.5分，满分7.5分)1. What kind of music does the woman like?A. Classical music.B. Rock music.C. Country music.2. What does the woman want to buy?A. Sweets and apples.B. Oranges and apples.C. Vegetables and apples.3. What does the man mean?A. He had a good time at the party.B. He doesn't want to see his friends again.C. He didn't enjoy the party at all.4. What does the woman suggest the man do?A. Go on a diet.B. Talk to her sister.C. Introduce himself first.5. What will the man probably do tonight?A. Read Chapter 4.B. Study in the library.C. Watch the football match. 第二节(共15小题；每小题1.5分，满分22.5分)听第6段材料，回答第6、7题。

6. What is the probable relationship between the two speak ers?A. Travel agent and customer.B. Husband and wife.C. Boss and secretary.7. When will the meetings end?A. At 3:00 p.m.B. At 5:00 p.m.C. At 6:30 p.m.听第7段材料，回答第8、9题。

2021-2022学年广西壮族自治区贵港市覃塘区覃塘中学高二英语下学期期末试卷含解析

2021-2022学年广西壮族自治区贵港市覃塘区覃塘中学高二英语下学期期末试卷含解析一、选择题1. You should get your ideas ________ when you are putting _______ an ad campaign.A. through; offB. along; togetherC. across; downD. across; together参考答案：D略2. —I’m taking part in the English Speaking Contest next week．— _______．A．Come on B．Good luck C．Congratulations D．Well done参考答案：B3. Don’t let failure _____ you, for you can never tell how close you may be to victory.A. displayB. dissolveC. discountD. discourage参考答案：D【详解】考查动词辨析。

句意：不要让失败阻止你，因为你永远不知道离胜利还有多近。

A. display显示；B. dissolve使溶解；C. discount打折扣；D. discourage阻止，根据题意，故选D。

4. She brought three children up all by herself, at great personal_________.A. priceB. sacrificeC. expenseD. contribution参考答案：B考查名词辨析。

A. price价格；B. sacrifice牺牲；C. expense消耗；D. contribution贡献。

句意：她独自一人带了三个孩子，做出了很大的个人牺牲。

故选B。

5. --John, when shall we meet again, Thursday or Friday?--___________.I’ll be off to London then.A. EitherB. NeitherC. BothD. None 参考答案：B6. When I knocked at the door , out .A. came a boy.B. a boy cameC. did a boy comeD. did come a boy参考答案：A7. There is no doubt _______ those who work hard will succeed sooner or later.A. thatB. whetherC. ifD. why参考答案：A8. After the war, a new school building was put up __________there used to be a theatre.A. thatB. whereC. whichD. when参考答案：B9. You may send me an e-mail or just give me a call. will do．A．Neither B．Each C．Any D. Either参考答案：D10. These photos _________ me of many happy memories of my trip in France.A. accuseB. remindC. cureD. link参考答案：B11. ______more careful, his ship would not have sunk .A If the captain wereB had the captain beenC should the captain beD If the captain would have been参考答案：B略12. _______ such a heavy financial loss, Mr Smith found it difficult to run his company.A. SufferingB. having sufferedC. SufferedD. To suffer参考答案：B略13. He had to pause from time to time to wipe the sweat from the forehead, because the air-conditioning system _______.A. broke offB. broke upC. broke outD. broke down参考答案：D14. We have all been gifted with the ability to ______ a difference, but most times we are not aware of that gift.A．catch B．keep C．make D. tell参考答案：C15. —You don’t seem to be quite yourself today. What’s wrong?—Oh, I’m suffering from a cold. Nothing serious,_________.A. yetB. indeedC. anyhowD. though参考答案：D 16. These oranges look a little dry, but some orange juice may be able to be ____.A. picked outB. squeezed outC. given outD. left out参考答案：B17. Chang’e-2 did many experiments, ______ I think are of much help for knowing space.A. whichB. whatC. whenD. where参考答案：A18. _______, she is the sort of woman to spread sunshine to people through her smile.A. Shy and cautiousB. Sensitive and thoughtfulC. Honest and confidentD. Lighthearted and optimistic参考答案：D二、书面表达19. 假如你是李华。

2020年广西省贵港市高级中学高三英语三模试题及答案解析

2020年广西省贵港市高级中学高三英语三模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ABest of British：Outdoor CinemasLuna Beach Cinema, BrightonOn the beaches of Brighton this summer, you can enjoy the lapping of waves as you take inFinding Dory, Moana and Sharknadoover a month-long residency. This spot boasts the highest definition outdoor LED screen in the country. stretching to an impressive 33 feet!Moonlight Flicks, ChesterThe biggest outdoor cinema in the North West of England, Moonlight Flicks will be showing some serious blockbusters（大片）this summer, including A Star Is Born and singalong crowd-pleaser, The Greatest Showman. Cinephiles can gather on the lawn and plug into wireless headphones to ensure perfect sound quality.Rooftop Film Club, LondonEnjoy cult classics and family favorites while looking out on a view of London's skyline with the city's unique Rooftop Film Club. The current programme only runs until June 30 and our top picks include The Breakfast Club, Fargo and a special 65th anniversary showing of Rear Window.Chirk Castle, Wrexham, North WalesThe 11th-century Chirk Castle was first built under the reign o£ Edward I, but now it's the destination for Silly Walk superfans, as they put on screenings of the cult classic, Monty Python and the Holy Grail. Has there ever been a more perfect surrounding to enjoy the comedy capers of King Arthur and his dozy squire?1. What can you enjoy in the biggest outdoor cinema in the North West of England?A.Finding DoryB.A Star Is BornC.The Breakfast ClubD.Monty Python and the Holy Grail.2. Where can you enjoy a special anniversary show?A. Luna Beach Cinema, Brighton.B. Moonlight Flicks, Chester.C. Rooftop Film Club, London.D. Chirk Castle, Wrexham, North Wales3. What's the purpose of writing the text?A. To encourage summer activities.B. To advertise several cult classics.C. To recommend some blockbusters.D. To introduce outdoor cinemas.BI started out in life with few advantages. I didn't graduate from high school. I worked at menial (不体面的) jobs. I had limited education, limited skills and a limited future.And then I began asking, "Why are some people more successful than others?" This question changed my life.Over the years, I have read thousands of books and articles on the subjects of success and achievement(成就). It seems that the reasons have been discussed and written about for more than two thousand years, in every possible way. One quality that most philosophers, teachers and experts agree on is the importance of self-discipline (自律). As Al Tomsik summarized it years ago, "Success is tons of discipline."Some years ago, I attended a conference in Washington. It was the lunch break and I was eating at a nearby food fair. The area was crowded and I sat down at the last open table by myself, even though it was a table for four.A few minutes later, an older gentleman and a younger woman who was his assistant came along carrying trays of food, obviously looking for a place to sit. With plenty of room at my table, I immediately invited the older gentleman to join me. He was hesitant (犹豫), but I insisted. Finally, thanking me as he sat down, we began to chat over lunch.It turned out that his name was Kop Kopmeyer. As it happened, I immediately knew who he was. He was a legend in the field of success and achievement. Kop Kopmeyer had written four large books, each of which contained 250 success principles that he had obtained from more than fifty years of research and study. I had read all four books from cover to cover, more than once.After we had chatted for a while, I asked him the question that many people in this situation would ask, "Of all the one thousand success principles that you have discovered, which do you think is the most important?”He smiled at me, as if he had been asked this question many times, and replied, without hesitating, "The most important success principle of all was stated by Thomas Huxley many years ago. He said, 'Do what you should do, when you should do it, whether you feel like it or not.'"He went on to say, "There are 999 other success principles that I have found in my reading and experience, but without self-discipline, none of them work."4. Why did the writer ask the question in Paragraph 2 ?A. Because he wasn't satisfied with himself.B. Because he was a person of self-discipline.C. Because he dislike those successful people.D. Because he wanted to share his idea on success.5. What made the writer invite the older gentleman to join him ?A. His great kindness.B. The gentleman's fame.C. His eagerness for success.D. The gentleman's habit.6. What are the four large books about ?A. Personal changesB. The secret of successC. Sayings of wisdomD. The gentleman's manners.7. What's the best title for the text ?A. The Magic of ReadingB. An Unexpected ConversationC. A Question that Changed MyLifeD. The Power of Self-disciplineCIn life，once on a path，we tend to follow it，for better or worse.What's sad is that even if it's the latter，we often accept it anyway because we are so used to the way things are that wed don't even recognize that they could be different This is a phenomenon psychologist call functional fixedness.This classic experiment will give you an idea of howitworks and a sense of whether you may have fallen into the same trap: People are given a box of tacks (大头钉) and some matches and asked to find a way to attach a candle to a wall so that it burns properly.Typically, the subjects try tacking the candle to the wall or lighting it to fix it with melted wax. The psychologists had, of course, arranged it so that neither of these obvious approaches would work. The tacks are too short, and the paraffin (石蜡) doesn't stick to the wall. So how can you complete the task? The successful technique is to use the tack box as a candle-holder. You empty it, tack it to the wall. and stand the candle inside it. To think of that, you have to look beyond the box's usual role as a receptacle just for tacks and re-imagine it serving an entirely new purpose. That is difficult because we all suffer to one degree or another from functional fixedness.The inability to think in new ways affects people in every corner of society. The political theorist Hannah Arendt coined the phrase“frozen thoughts”to describe deeply held ideas that we no longer question but should. In Arendt's eyes, the self- content reliance on such accepted “truths”also made people blind to ideas that didn't fit their worldview, even when there was plenty of evidence for them.Frozen thinking has nothing to do with intelligence, she said,“It can be found in highly intelligent people.”8. What does the underlined word“it”in paragraph 2 refer to?A. The experiment.B. Functional fixedness.C. The path.D. The thinking.9. Which way is hard to think of to complete the task?A. Tacking the candle to the wall.B. Fixing the candle with melted wax.C. Using the tack box as a candle-holder.D. Lighting the candle tostand it.10. Which of the following statements will Hannah Arendt agree with?A. People should question.B. We should be used to the way things are.C. People shouldn't accept the idea that doesn't fit their worldview.D. The smarter people are，the more open to the new things they are.11. What's the passage mainly about?A. An interesting experimentB. A psychological phenomenon.C. A theory to be proved.D. The opinion of Hannah Arendt.DWhen rescuers were called to rescue a “little owl”, they did not expect to find one that was too fat to fly. A concerned citizen first spotted the poor bird lying helplessly. Even Rufus Samkin, whose team then took the team in on Jan.3, believed the bird to be injured. There were no wounds to be found, however, causing experts to believe the female owl was simply too wet to fly.But it was only after a thorough drying-off and complete checkup that they noted the real issue. The rescuers weighed the owl and concluded that she was “simply extremely obese” and couldn’t take off. This additional weight left her unable to fly, though experts began to wonder how she got so fat in the first place. Because it’s rather unusual for wild birds to reach such a state, they decided to keep her a few weeks and monitor her.In the end, the rescuers assessed that it was simply a case of “natural obesity”. December 2019 was quite warm, which meant that there were many insects for the bird to feast upon. Indeed, the owl was discovered in a field that was “filled with field mice” due to the usual climate. “It’s been very mild here, and the owl is able to find foods easily,” Samkin explained. With the sudden food, “she ly ate much and got very fat. She had a lovely time,but went too far.”The researchers consequently put the owl on a “strict diet” so she could shrink to a more “natural weight”. She was even put on a bit of exercise and encouraged to fly around. In the end, the bird was sent flying gracefully off into the British countryside at a much healthier and happier weight. Hopefully, this owl won’t come upon another feast of field mice—unless she wants another few weeks at the fat camp.12. What did people think happened to the owl at first?A. She was hurt.B. She was trapped.C. She was hungry.D. She was wet.13. Why was the bird unable to fly?A. She needed a thorough checkup.B. She should be given a drying-off.C. She was completed overweight.D. She was simply extremely strong.14. What made the owl have enough foods?A. The especially warm weather.B. The reducing number of insects.C. The rich fields growing crops.D. The lovely time the bird enjoyed.15. How did the owl loseits weight?A. Going on a diet and exercising.B. Flying in the British countryside.C. Visiting that fat camp again.D. Enjoying her wonderful feast freely.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。

广西贵港市覃塘高级中学18-19学年度高一3月月考——英语(英语)

广西贵港市覃塘高级中学2018—2019学年度下学期3月月考高一英语试题第一部分：听力（共两节，满分30分)第一节（共5小题；每小题1.5分，满分7.5分）听下面5段对话。

每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。

听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。

每段对话仅读一遍。

每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。

听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。

每段对话或独白读两遍。

听第6段材料，回答第6、7题。

6. Where is the man from?A. America.B. England.C. Australia.7. What time will the director meet the man on Monday morning?A. At 8:00B. At 9:00C. At 10:00听第7段材料，回答第8至10题。

广西贵港市覃塘区覃塘高级中学2020_2021学年高二数学下学期3月月考试题理

广西贵港市覃塘区覃塘高级中学2020-2021学年高二数学下学期3月月考试题理试卷说明：本试卷分Ⅰ卷和Ⅱ卷，Ⅰ卷为试题（选择题和客观题），学生自已保存，Ⅱ卷一般为答题卷，考试结束只交Ⅱ卷。

一、选择题（本大题共12小题，每小题5分，每小题只有一项符合题目的要求）1.已知集合A＝{x|1＜2x﹣1≤5}，B＝{x|x2﹣4≥0}，则A∩（∁R B）＝（）A．{x|2≤x≤3} B．{x|2＜x≤3} C．{x|1＜x＜2} D．{x|1＜x≤2}2.命题p：x2﹣x﹣2＜0是命题q：0＜x＜1的（）A．充分不必要条件B．必要不充分条件C．充分必要条件D．既不充分又不必要条件3.复数＝（）A．1+i B．1﹣i C．i D．﹣i4.下列式子不正确的是（）A．（3x2+cos x）′＝6x﹣sin x B．（lnx﹣2x ）′＝ln2C．（2sin2x）′＝2cos2x D．（）′＝5.七巧板是中国古代劳动人民发明的一种传统智力玩具，其历史可以追溯到公元前一世纪．明、清两代这一在民间广受喜爱的游戏逐渐流传至海外并有了一个新的名字“唐图”，至今英国剑桥大学的图书馆里还珍藏着一部《七巧新谱》．如图是一个用七巧板拼成的正方形，若在此正方形中任取一点，则此点取自阴影部分的概率为（）A ．B ．C ．D ．6.已知sin α＝，α∈（，π），则tanα＝（）A ．B ．﹣C ．D ．﹣7.已知||＝，||＝5，•＝10，则向量，夹角的余弦值为（）A ．B ．C ．D ．8.已知函数f（x）＝x2lnx，则曲线y＝f（x）在点（1，f（1））处的切线方程为（）A．x+y﹣1＝0 B．x﹣y﹣1＝0 C．x﹣y+1＝0 D．x+y+1＝09.已知复数z 满足＝i，则|z|＝（）A ．B．5 C．2 D．410.过抛物线C：y2＝8x的焦点F ，且斜率为的直线交C于点M（在x轴上方），l为C的准线，点N在l上且MN⊥l，则点M到直线NF的距离为（）A．4B．2C ．+4 D．4+11.已知函数()22ln3f x x ax x=+-在2x=处取得极小值，则()f x在1,32⎡⎤⎢⎥⎣⎦的最大值为（）A．52-B．92ln32-C．1-D．2ln24-12.若函数)2ln(21)(2++-=xaxxf在），（∞+1-上是减函数，则实数a的取值范围是（）A.），∞+1-[ B.），（∞+1- C.]1--，（∞ D.二、填空题(每小题5分，共20分)13.设iz23+-=，则在复平面内z对应的点位于第▲象限14.函数()lnxf xx=的单调减区间为____▲_________.15.已知双曲线的一条渐近线的方程为，且经过点，则双曲线标准方程为▲16.已知函数32()33f x x x=-+，有下列命题：①函数()y f x=的图像在点(1,(1))f处的切线为340x y+-=；②函数()y f x=有3个零点；③函数()y f x=在2x=处取得极大值；④函数()y f x =的图像关于点(1,1)对称上述命题中，正确命题的序号是___▲_______．三、解答题（17题10分，其余每题12分，解答须写出文字说明、证明过程和演算步骤）.cos 2cos cos 17B b A c C a c b a C B A ABC =+∆已知，，，的对边分别是，，的内角、（1）求角B ；（2）若32=b ，ABC ∆的面积为35，求ABC ∆的周长.18、从某公司生产的10000件产品中随机抽取100件作为样本，并测量它们的长度l （单位：mm ），将样本数据分为[28，30），[30，32），[32，34），[34，36），[36，38），[38，40]六组，并整理得到频率分面直方图如图．（Ⅰ）求a 的值及样本产品长度的平均值；（Ⅱ）当l ∈[31，39]时为合格品，其余为废品．每件合格品可获得利润20元，每件废品则亏损材料费15元，且生产出的合格品全部销售完，若以样本估计总体，求该公司获得的利润．（同一组中的数据用该组区间的中点值为代表）19、如图，在三棱锥A ﹣BCD 中，△ABD 与△BCD 都为等边三角形，平面ABD ⊥平面BCD ，M ，O 分别为AB ，BD 的中点，AO ∩DM ＝G ，N 在棱CD 上且满足2CN ＝ND ，连接MC ，GN ．（1）证明：GN ∥平面ABC ；（2）求直线AC 和平面GND 所成角的正弦值．20、有一边长为a 的正方形铁片，铁片的四角截去四个边长为x 的小正方形，然后做成一个无盖方盒.（1）试把方盒的容积V 表示成x 的函数；（2）求x 多大时，做成方盒的容积V 最大.21、在平面直角坐标系xOy 中，已知椭圆的右焦点为F ，点F 也为抛物线xy C 821=：的焦点．（1）求椭圆的方程；（2）若与圆O ：x 2+y 2＝1相切的直线l 与椭圆C 相交于M ，N 两点，且△OMN 的面积为，求直线l的方程．22、已知函数2ln )(2--+=x a x x x f .（1）若曲线)(x f y =在点)22）（，（f 处的切线与直线x y -=垂直，求该切线的方程；（2）若1>x 时，0)(>x f 恒成立，求实数a 的取值范围.覃塘高中高二数学（理科）3月月考参考答案一、选择题题号 1 2 3 4 5 6 7 8 9 10 11 12 答案 CBBCADBBAABC13.三 14.)11,0e ，），（（ 15.16.① ② ④，17.,cos 2cos cos 1B b A c C a =+ ）解：（,cos sin 2cos sin cos sin B B A C C A =+由正弦定理得： ,sin cos sin 2)sin(B B B C A ==+整理得： ,0π<<∆B ABC 中，在,0sin ≠∴B；即3,21cos ,1cos 2π===∴B B B （2）由余弦定理得：,21232222⋅-+=ac c a ）（ ,123)2=-+∴ac c a （,3543sin 21===ac B ac S,20=∴ac1260)2=-+∴c a （,26=+∴c a .3226+∆∴的周长为ABC18、【考点】频率分布直方图．【分析】（I ）由频率分布直方图列出方程，求出a ,由此能求出样本产品长度的平均值．（II ）从样本中随机抽取一件产品，其为合格品的概率为0.8，从而其为废品的概率为1﹣0.8＝0.2,由此能求出该公司获得的利润．【解答】解：（I ）∵（0.05×3+0.1×2+a ）×2＝1,∴a ＝0.15, 样本产品长度的平均值为:．（II ）依题意得，从样本中随机抽取一件产品，其为合格品的概率为:,其为废品的概率为1﹣0.8＝0.2,故该公司获得的利润为10000×（0.8×20﹣0.2×15）＝130000元．【点评】本题考查频率、平均数、概率、利润的运算，涉及到频率分布直方图的性质等基础知识，考查运算求解能力、数据分析能力等核心素养，是基础题．19．【考点】直线与平面平行；直线与平面所成的角．【专题】数形结合；定义法；空间角；空间向量及应用；数学运算．【答案】（1）证明见解答过程；（2）．【分析】（1）利用重心的性质，结合条件可得GN ∥MC ，然后利用县里平行的判定定理证明即可；（2）以{}为正交基底，建立空间直角坐标系O ﹣xyz ，求出平面GND 的一个法向量为，然后根据cos ＜，＞＝进行求解，即可求出所求．【解答】（1）证明：在△ADB 中，因为M ，O 分别为AB ，BD 的中点，AO ∩DM ＝G ，所以G 为△ADB 重心，所以，又＝2，所以GN ∥MC ．∵GN ⊄平面ABC ，MC ⊂平面ABC ， ∴GN ∥平面ABC ．（2）解：因为平面ABD ⊥平面BCD ，AO ⊥BD ，平面ABD ∩平面BCD ＝BD ，AO ⊂平面ABD ，所以AO ⊥平面BCD ，连结OC ，则OC ⊥OD ，以{}为正交基底，建立如图所示的空间直角坐标系O ﹣xyz ，不妨设AB ＝2，则C （，0，0），D （0，1，0），A （0，0，），G （0，0，），所以，，，设平面GND 的一个法向量为＝（x ，y ，z ），则，取x ＝1，则y ＝，z ＝3，所以平面GND 的一个法向量为＝（1，，3），所以cos ＜，＞＝，所以直线AC 和平面GND 所成角的正弦值为．【点评】本题主要考查了线面平行的判定，以及线面所成角的求法，利用向量法进行求解是解题的关键，同时考查了数形结合的思想和运算求解的能力，属于中档题． 20.解：(1)方盒的高为x ，底面是边长为x a 2-的正方形，所以))2,0(,0()2()2a x a x a x x V V ∈>-==（（2）为了求)x V （在)20a，（上的最大值点，要求出它在)20a ，（内部的极大值点，为此求出 )6)(2())2(()'2'a x a x x a x x V --=-=（令0)'=x V （，解得2,621ax a x ==当60a x <<时，0)'>x V （；当26a x a <<时，0)'<x V （272)6)(6)3a a V x V ax x V =∴=（的最大值为值，处取得极大值也是最大在（故21【考点】曲线与方程；直线与椭圆的综合．【分析】（1）由椭圆与抛物线有相同的焦点，得c ＝2，解得b 2＝a 2﹣c 2＝8﹣4＝4，进而可得椭圆的方程．（2）设直线l 为x ＝my +n ，M （x 1，y 1），N （x 2，y 2），联立直线l 与椭圆的方程，由韦达定理可得y 1+y 2，y 1y 2，由弦长公式可得|MN |，由直线l 与圆O 相切可得n 2＝1+m 2，再计算三角形OMN 的面积使得它为，进而解得m ，n ，即可得出答案．【解答】解：（1）因为抛物线y 2＝8x 的焦点F （2，0），又椭圆与抛物线有相同的焦点，所以c ＝2，所以b 2＝a 2﹣c 2＝8﹣4＝4，所以椭圆的方程为+＝1．（2）设直线l 为x ＝my +n ，M （x 1，y 1），N （x 2，y 2），联立，得（m 2+2）y 2+2mny +n 2﹣8＝0，所以y 1+y 2＝﹣，y 1y 2＝，|MN |＝＝＝，因为直线l 与圆O ：x 2+y 2＝1相切，所以圆心到直线的距离d ＝r ，所以＝1，即n 2＝1+m 2，所以S △OMN ＝•|MN |•d ＝••1＝•＝•＝，即7m 4+10m 2﹣17＝0，解得m 2＝1或m 2＝﹣（舍去），所以n 2＝2，所以直线l 的方程为x ＝y +或x ＝y ﹣或x ＝﹣y +或x ＝﹣y ﹣即x ﹣y ﹣＝0或x ﹣y +＝0或x +y ﹣＝0或x +y +＝0．【点评】本题考查椭圆的方程，直线与椭圆的相交问题，解题中需要一定的计算能力，属于中档题．22.（1）），，的定义域为（∞+0)(x f ,12)('xax x f -+= ,8,125)2('=∴=-=a af ,2ln 84)2(-=∴f 又.02ln 82,2ln 82为所求曲线的切线方程即=-+--+=∴y x x y(2),212)(2'xa x x x a x x f -+=-+=,41,2)(2-=-+=x a x x x g 对称轴为令）上单调递增，，在（易知∞+1)(x g ,3)1(a g -=又①.10)(,03)1()(3'）上恒成立，在（时，当∞+>∴≥-=>≤x f a g x g a.1)(）上单调递减，在（∞+∴x f.1)1()(）上恒成立，在（∞+>∴f x f②,0)(),,1(,03)1(000=+∞∈∃<-=>x g x a g a 使得时，当.0)(;0)(1'0'0>><<<∴x f x x x f x x 时，时，.),(),1()(00上单调递增上单调递减，在在+∞∴x x x f .,0)1()(0与已知矛盾=<∴f x f].3,-∞的取值范围是（综上所述，a。

【2019-2020】广西高二英语下学期3月月考试题

A.Mr. CassellB.Ms. BakerC. Mr. Langley
7. Why does the man apologize at the end
A.He misunderstood ant he sawB.He won’t be able to attend the birthday party
A.Her grandfatherB.her father C. Her dad’s friend
14. Whatdoes the woman say about the riding a horse?
A.She has never done that before.B.It’s a great way to have fun
12. Whatmight the man discuss with Ralph?
A.What dishes to have.B. What drinks to orderC.Where they should sit
听第9段材料，回答第13至16题。
13Who took the woman to horse races when she was young?
3. What are the speakers doing?
A.listening to the radio.B.watching Television
C.Looking at a new movie ad in a magazine
4.Why won’t the man go to college after graduation?
广西高二英语下学期3月月考试题
编辑：__________________
时间：__________________

广西壮族自治区贵港市覃塘区覃塘中学2020-2021学年高三英语下学期期末试题含解析

广西壮族自治区贵港市覃塘区覃塘中学2020-2021学年高三英语下学期期末试题含解析一、选择题_____ the Internet is of great help. I don’t think it’s a good idea to spend too much time on it.A. IfB. WhileC. BecauseD. As参考答案：B解析：考查连接词的选用。

2. —Could you tell me where you’re working now, Tony?—In the new development zone. But I ____ in a computer company for five years.A. have workedB. had workedC. was workingD. worked参考答案：D3. You shall get a film ticket free _______ you use your credit card twice this month.A. UntilB. SinceC. IfD. Unless参考答案：C4. The breakthrough by scientists in Shanghai, gives hope to cancer patients all over the worldA.takenB. madeC. broughtD. paid参考答案：B5. He telephoned to inform me of your birthday．____________，I would have known nothing about it．A．However B. Otherwise C．Therefore D．Thus参考答案：B6. We should ________ ourselves ________ changing conditions.A．get；for B．accommodate；withC．accommodate；to D．make；for参考答案：C7. It is said that bad living habits as well as dirty surroundings, stuffy rooms and some other factors ________ the wide spread of H1N1.A. result fromB. benefit fromC. devote toD. contribute to参考答案：D8. The professor preferred ________ to students ________ to the party.A．giving lectures; to goingB．to give lectures; to goingC．to giving lectures; rather than goingD．giving lectures; to go参考答案：A9. _________, the excited crowds in the squar e suddenly became so quiet. It’s still puzzling.A. PersonallyB. NaturallyC. SomehowD. Anyway参考答案：C10. When I am tired with math exercises, I go out for a walk to get relaxed.A. shouldB. mustC. needD. will参考答案：D11. —Look at those clouds!—Don’t worry. ______ it rains, we’ll still have a great time.A. Even ifB.As thoughC. In caseD. If only参考答案：A。

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每段对话后有一个小题，从题中所给的A、B、C 3个选项中选出最佳选项，并标在试卷的相应位置。

听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一个小题。

每段对话仅读一遍。

每段对话或独白后有几个小题，从题中所给的A、B、C 3个选项中选出最佳选项，并标在试卷的相应位置。

听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟。

听完后，各小题将给出5秒钟的作答时间。

每段对话或独白读两遍。

听第6段材料，回答第6、7题。

8. What does Richard do?A. He’s a newsman.B. He’s a manager .C. He’s a researcher.9. Where is Richard going next week?A. Birmingham.B. Mexico City.C. Shanghai.10. What will the speakers do tomorrow?A. Eat out together.B. Visit a university.C. See Professor Hayes.听第8段材料，回答第11至13题。

11. What is the probable relationship between the speakers?A. School friends.B. Teacher and student.C. Librarian and library user.12. Why does Jim suggest Mary buy the book?A. It’s sold at a discount price.B. It’s important for her study.C. It’s written by Professor Lee.13. What will Jim do for Mary?A. Share his book with her.B. Lend her some money.C. Ask Henry for help.听第9段材料，回答第14至16题。

14. Where does Stella live?A. In Memphis.B. In Boston.C. In St Louis.15. What would Peter and his family like to do on Beale Street?A. Visit a museum.B. Listen to musicC. Have dinner.16. What kind of hotel does Peter prefer?A. A big one.B. A quite one.C. A modern one.听第10段材料，回答第17至20题。

17. How many lab sessions will the students have every week?A. One.B. Two.C. Three.18. What are the students allowed to wear in the lab?A. Long scarves.B. Loose clothes.C. Tennis shoes.19. Why should the students avoid mixing liquid with paper?A. It may cause a fire.B. It may create waste.C. It may produce pollution.20. What does the speaker mainly talk about?A. Grades the student will receive.B. Rules the students should follow.C. Experiments the students will do.第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的四个选项（A、B、C、和D）中，选出最佳选项，并在答题卡上将该项涂黑。

AEverything to know about SingaporeHere is how to plan the best possible trip to this impressive city-state．When to goPositioned just one degree north of the Equator, Singapore is consistently tropical. So it’s more a matter of when not to go. Namely: the monsoon season between November and January when the city is blanketed in regular rainfall.What to celebrateSingapore celebrates its independence in an annual celebration known as National Day. Everyyear on August 9, the holiday is marked with great excitement that extends into the evening, ending in a massive fireworks display over Marina Bay.What to eatHainanese chicken rice is considered the national dish of Singapore, as you can find it just about everywhere. If you are looking for something a bit spicier, try laksa--a coconut curry-based noodle soup.Souvenir to take homeThe Mer lion is Singapore’s official mascot(吉祥物), a mythical beast with the head of a lion and the body of a fish. Many local salesmen offer hand-carved figurines that fit easily into carry-on luggage and will serve as a lasting symbol of your time here. Anyone wh o’s ever visited this place directly connects the symbol to the city.Travel tripHawker centers are open-air food markets featuring delightful street food. Eat at these as much as possible to support local business and for a true taste of Singaporean dining customs. While each has its own charm, Maxwell Road Hawker Center in Chinatown is the most famous.Instagram-worthy viewA photo from the world’s largest rooftop infinity pool-- connecting the three towers of the Marina Bay Sands-- is a must for many tourists here. But back on the ground, Merlion Park affordsa more impressive view of the hotel itself.21.When is a good time to visit Singapore?A.AugustB. JanuaryC. NovemberD. December22.What can you take back home as a souvenir according to the text?A.CoconutsB. Hand-made fishC. Merlion craftsD. Laksa23.Where can you enjoy the true taste of Singaporean food?A.On Marina BayB. In Hawker centersC. In Merlion ParkD. At the top of the Marina Bay SandsBIn early February 2019, 51-year-old Rainer Schimpf and his team set out to film South Africa’s famous Sardine Run off the coast of Port Elizabeth. The migration of billions of South African sardines, is a big draw for hunters, especially seabirds and dolphins. The two species work together to herd the large group of fish into smaller shoals (浅滩), which are then eaten by not just the birds and the dolphins, but also sharks and Bryde’s whales.In an attempt to find the best scene of the amazing natural phenomenon, which has been the subject of many films, Rainer got into the middle of a swirling ball of fish. Suddenly the sea churned (翻腾), and the experienced diver and his photographer Heinz Toperczer, who was filming from the boat, instantly realized something strange was going on.Toperczer later said, “As Rainer moved towards the shoals, suddenly the water churned widely up, dolphins shot out of the water and then a whale appeared and caught him!”Rainer, who was swallowed in darkness inside the whale’s mouth, was trying to survive. “I held my breath because I thought he was going to dive down and release me much deeper in the ocean,” the diver said.Fortunately for Rainer, the whale quickly realized he was no sardine! “I felt huge pressure around my waist (腰部) wh ich is when I guess the whale realized his mistake,” he said. “As the whale turned sideways, he opened his mouth slightly to release me, and I was washed out, together with tons of water, of his mouth.” Though the entire event lasted just 1.8 seconds, it f elt like a century to Rainer.Still holding his underwater camera, the diver swam to his boat, where he was quickly rescued by the members of the team. The terrifying adventure did not worry Rainer for too long. After checking to ensure he had no injuries, the diver returned to the water. Fortunately, the rest of the adventure went peacefully.24. Why did Rainer go to Port Elizabeth?A. To dive with whales.B. To study whales’ behaviors.C. To save dolphins from the hunters.D. To photograph a sardine migration.25. What happened to Rainer when he moved towards the shoals?A. He fell into the sea.B. He was hunted by a whale.C. He dropped his camera in the sea.D. He was swept away by angry waves.26. How was Rainer in the end?A. He injurd his waist.B. He drowned in the sea.C. He had a narrow escape.D. He was saved by a dolphin.27. How was the rest of the journey?A.Smooth.B. Boring.C. Thrilling.D. Disappointing.CWhether in the home or the workplace, social robots are going to become a lot more common in the next few years. Social robots are about to bring technology to the everyday world in a more humanized way, said Cynthia Breazeal, chief scientist at the robot company Jibo.While household robots today do the normal housework, social robots will be much more like companions than mere tools. For example, these robots will be able to distinguish when someone is happy or sad. This allows them to respond more appropriately to the user.The Jibo robot, arranged to ship later this year, is designed to be a personalized assistant. You can talk to the robot, ask it questions, and make requests for it to perform different tasks. The robot doesn’t just deliver general answers to questions; it responds based on what it learns about eac h individual in the household. It can do things such as reminding an elderly family member to take medicine or taking family photos.Social robots are not just finding their way into the home. They have potential applications in everything from education to health care and are already finding their way into some of these spaces.Fellow Robots is one company bringing social robots to the market. The company’s “Oshbot” robot is built to assist customers in a store, which can help the customers find items and help guide them to the product’s location in the store. It can also speak different languages and make recommendations for different items based on what the customer is shopping for.The more interaction the robot has with humans, the more it learns. But Oshbot, like other social robots, is not intended to replace workers, but to work alongside other employees. “We have technologies to train social robots to do things not for us, but with us,” said Breazeal.28. How are social robots different from household robots?A. They can control their emotions.B. They are more like humans.C. They do the normal housework.D. They respond to users more slowly.29. What can a Jibo robot do according to Paragraph 3?A. Communicate with you and perform operations.B. Answer your questions and make requests.C. Take your family pictures and deliver milk.D. Obey your orders and remind you to take pills.30. We can learn from the last paragraph that social robots will ______.A. train employeesB. improve technologiesC. be our workmatesD. take the place of workers31. What does the passage mainly present?A. A new design idea of household robots.B. Marketing strategies for social robots.C. Information on household robots.D. An introduction to social robots.DWhen it comes to sitting properly, we all know the correct way even if we don' t do it to the letter. No crossed legs, bottoms touching the back of the chair and feet on the ground. But even if you' re doing it right, sitting for long periods is shockingly bad for you. It has been described as the new smoking, linked to heart disease and even cancer. There is no doubt we should all try to do less of it. But perhaps we could also do it better.A classic survey, published in 1953, described 100 different sitting postures adopted by 480 cultures around the world. Among the most common were sitting cross-legged, kneeling and the deep squat (深蹲), with feet flat on the ground and bottoms resting on or just above it. Even in Western cultures, these are preferred sitting positions among young children. But Westerners tend to prefer chair use from an early age, insisting children sit on seats in school.One big problem with this desire for chairs is that they make sitting so, well, sedentary (久坐不动的). Consider the Hadza, a group of hunter-gatherer people in Tanzania. They spend around 9 hours a day sitting. However, they squat and sit on the ground in various positions, and this involves high levels of muscle activity. The supportive nature of chairs, with their high backs and armrests, removes this effort perhaps the reason that people love them.So what' s the best way to sit? Josette Bettany-SaItikov at Teesside University, UK has found that kneeling can help keep the spine in a better position as does squatting. We might also take inspiration from traditional cultures like the Hadza. "Use a variety of postures and preferably not just still postures but some which allow movement," says Bettany-Saltikov.Bettany-Saltikov believes that we should be rethinking what it means to do a desk job. "We still need to design workplaces that enable people to be productive while being lightly active, like with under-table cycling or walking desks," she says. For now, if your job is sedentary, don' t forget to stand up regularly and move around.32.What does the author think of sitting properly for long?A.It still does some harm.B. It improves body shape.C. It can prevent heart disease.D.It may cause smoking-related illnesses. 33. What is the Western sitting culture?A. Children should sit in their preferred manner.B. Children should take their seats while sitting.C. Children should practice sitting cross-legged.D. Children should learn different sitting postures.34. How do the Hadza sit?A. They sit for short periods of time.B.They sit for the purpose of exercise.C. They use some muscles while sitting.D. They remain generally still while sitting.35. What does Bettany-Saltikov advise employees to do?A. Combine exercise and their work.B. Improve their productivity at work.C. Kneel or go cycling as often as possible.D. Start exercising as soon as they leave work.第二节（共5小题，每小题2分，满分10分）根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。