广州执信中学2016届高三英语上学期期末试卷(含解析)

2016-2017学年度第一学期高一级英语科期中考试试卷本试卷分选择题和非选择题两部分，共16页，满分为150分。

考试用时120分钟。

注意事项：1、答卷前，考生务必用黑色字迹的钢笔或签字笔将自己的姓名和学号填写在答题卡和答卷密封线内相应的位置上，用2B铅笔将自己的学号填涂在答题卡上。

2、选择题每小题选出答案后，有2B铅笔把答题卡上对应题目的答案标号涂黑；如需改动，用橡皮擦干净后，再选涂其他答案；不能答在试卷上。

3、非选择题必须用黑色字迹的钢笔或签字笔在答卷纸上作答，答案必须写在答卷纸各题目指定区域内的相应位置上，超出指定区域的答案无效；如需改动，先划掉原来的答案，然后再写上新的答案；不准使用铅笔和涂改液。

不按以上要求作答的答案无效。

4、考生必须保持答题卡的整洁和平整。

第一部分选择题（共105分）一、听力理解（共2节，满分10分）第一节听下面四段对话，每段对话后有几个小题。

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。

每段对话读两遍。

（共10小题，每小题0.5分，满分5分）听第一段材料，回答第1-2题。

1. When will the train leave?A. At 3:30.B. At 3:35.C. At 4:05.2. What will the man do next?A. Buy a newspaper.B. Read a magazine.C. Listen to music.听第二段材料，回答第3-4题。

3. Why isn’t Jenny at the store?A. She left work early.B. She’s late for work.C. She’s been ill.4. How does the man feel about Jenny?A. Angry.B. Curious.C. Concerned.听第三段材料，回答第5-7题。

2020-2021学年广州执信中学高三英语上学期期末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ASome of the world’s most talented musicians have played concerts atLincolnCenter. On September 10, the center hosted a unique class of star musicians: kids and teens. The young players are part of the World Peace Orchestra, or WPO. The group held its first Music for Peace concert inNew York City, with 134 students from more than 60 countries taking part. Musicians were chosen from all over the world.The World Peace Orchestra began in 2013. The nonprofit group brings kids together using the common language of music. To be considered for the orchestra, students first had to be recommended by their teachers and then audition online for a group of judges. Once chosen, professional musicians and teachers then worked with the players to improve their skills.Some of the young musicians played classical instruments, such as violins and flutes. Others played instruments unique to their home country. For example, Amold Mugo, 16, fromKenya, played an instrument called the djembe. The drum is originally fromWest Africa. Mugo said he was shocked when he learned he was chosen for the orchestra. “I can’t express how I felt. I was rolling on the floor. It’s a once in a lifetime opportunity,” he said.Adomas Hendrixson, 13, fromLithuania, played piano for the WPO. Before theNew York Cityperformance, Hendrixson talked about what he hoped to take away from the event. “Fun and joy-- people smiling and clapping,” he said.“This is one of the only times in your life this could happen and I'm very excited.”Mugo says his favorite part of the WPO is making new friends from around the world. “I hope when I go home, I just take a little bit of every friend that I made here-- Brazil, Portugal, Queens,” Mugo said, “I hope that I take part of their culture home with me so I understand them more.”1. Who is most likely to have played for the WPO according to this passage?A. Li Ming, 16, a student fromChina.B. Daniel, 44, a judge fromAmerica.C. Edward, 21, a clerk fromAustralia.D. Catherine, 32, a teacher fromEngland.2. We can learn from the last paragraph that Mugo ________.A.performed best for the WPO.B. has learned some foreign culture.C. was eager to be chosen for a second time.D. received a great award for his performance.3. What would be the best title for this passage?A. Kids were good at playing music.B. Mugo liked making foreign friends.C. Concerts were played atLincolncentre.D. Young musicians played for peace.BYou’re in a crowd of people who are all asking for the same thing. How do you make your voice heard above the rest? Be different. Don’t shout. Lisa, 25, was waiting to board a plane flying fromLondontoAustriafor Christmaswhen the flight was cancelled.“There were about a hundred of us unable to leave,” she says. “Everyone else was shouting at the airport staff. Instead of joining in, I walked up to the man behind the ticket desk very quietly and said, ‘This must be so awful for you! I don’t know how you deal with these situations—it’s not even your fault. I could never handle it as well as you are.’ Without my even asking, he found me a seat on another airline with an upgrade to first class. He was happy to do a favor forsomeone who was appreciative instead of unfriendliness.”Flattery (恭维) is an essential element of the sweet-talk strategy. “It’s human psychology that stroking a person’s ego (自我) with a few well-directed praises makes them want to prove you right,” says apsychologist. “Tell someone they’re pretty and they’ll instantly fix their hair; praise their sense of humor and they’ll tell a joke.”You need help and there’s ly no reason that the person will want to lend a hand. Allison, 26. a lawyer, realized she’d made a huge mistake on a batch of documents. “The only way I could fix the problem was to get the help of a colleague who I knew didn’t like me,” she said.Allison then went to the woman’s office and explained her problem. “As I was saying to the boss the other day you’re the only person who would know how to handle a situation like this, what would you suggest I do?” “Feeling pumped up (鼓励), she set about helping me and we finished the job on time, and she was happy to help.” Allison said.4. Whatwould have happened at the airport according to paragraph 1?A. The departure hall was filled with noise.B. Someone screamed just lo be different.C. The passengers waited on board patiently.D. The airport stuff were rude to the passengers.5. Why did the man put Lisa on another airline?A. He admired Lisa’s beauty.B. He appreciated her attitude.C. He was ready to help others.D. He was blamed for the cancellation.6. What is the third paragraph mainly about?A. The potential benefits of ego.B. The strategy to start small talk.C. The great importance of flattery.D. The value of humor in daily life.7. What can we learn about Allison’s colleague?A. She was a popular lawyer.B. She was always ready to help others.C. She always got praise from Allison.D. She did a great favor for Allison eventually.CSummer heat can be dangerous, and heat leads to tragedy far toooften. According to kidsandcars, org, an average of 37 young children per year die of car heat in the US, when they are accidentally left in a hot vehicle.For Bishop Curry, a fifth grader from Mckinney, Texas, one such incident hit close to home. A six-month-old baby from his neighborhood died after hours in a hot car. After hearing about her death, Curry decided that something needed to be done. Young Curry, who turned 11 this year, has always had a knack for inventing things, and he drew up a sketch (草图) of a device he called “Oasis.”The device would attach to carseats and watch the temperature inside the car. If it reached a certain temperature in the car, and the device sensed a child in the carseat, it would begin to circulate cool air. Curry alsodesigns the device using GPS and Wi-Fi technology, which would alarm the child’s parents and, if there was no response from them, the police.Curry’s father believes that the invention has potential. “The cool thing about Bishop’s thinking is none of this technology is new,” he said. “We feel like the way he’s thinking and combining all these technologies will get to production faster.” His father even introduced the device to Toyota, where he works as an engineer. The company was so impressed that they sent Curry and his father to a car safety conference in Michigan.In January, Curry’s father launched a campaign for the invention. They hope to raise money to finalize the patent, build models, and find a manufacturer. Their goal was $20,000, but so many people believed in Oasis’potential that they have raised more than twice that — over $46,000.Curry’s father remembers the first time he saw his son’s sketch. “I was so proud of him for thinking of a solution,” he said. “We always just complain about things and rarely offer solutions.”8. What inspired Curry to invent Oasis?A. His narrow escape from death after being locked in a car.B. His knowledge of many children’s death because of car heat.C. The death of his neighbor’s baby after being left in a hot car.D. The injury of 37 children in his school in a car accident.9. What would Oasis do if it was hot in a car with a child?A. It would inform the parents or even the police.B. It would pump out the hot air in the car.C. It would sound the alarm attached to the car.D. It would get the window open to save the child.10. What does Curry’s father think is cool about Curry’s invention?A. It used some of the most advanced technology.B. It simply combined technologies that existed.C. It could accelerate production of new technology.D. It is the most advanced among similar products.11. Why did Curry’s father start a campaign to raise money?A. To conduct experiments to test the invention.B. To get other children devoted to inventions.C. To support a charity of medical aid for children.D. To get the patent and bring it to production.D“Tell her,” I whispered to my daughter as she pressed her body against mine. She folded my free arm around her little shoulders while I finished loading the groceries onto the conveyer belt.I smiled at the young cashier who had a butterfly knot tied to her black ponytail(马尾辫). My daughter was right when she'd whispered to me, “Her hair is so pretty.”“Tell her,” I repeated witha gentle push. My girl only dug her pink cheeks deeper into my side as she nervously twisted the edge of my sleeve in her small fist.The cashier looked down at my daughter, her expression showing a little concern. “My daughter thinks your hair is beautiful.” I explained.The cashier's face lit up. “You do?” This led my little one out of her hiding place. She looked up and nodded.“Thank you so much! You made my day,” the cashier said with a smile brilliant enough to compete with her highlights. My daughter returned it with a shining smile of her own.As I walked out of the store, holding my daughter's hand, I stole a glance back at the young woman. Her energy was clearly brighter now than it had: been when we first entered her line.After loading my groceries in the trunk, I climbed into the driver's seat. It was then that my daughter made a declaration, “Mom, I think I'm going to start telling everyone when I like their hair.” “You should, honey.” And she did. She still does.It's a rare occasion if we make a trip out in public without her telling someone that she loves their hair, or nails, or shirt, or shoes. To be honest, I think she even does so more than me. And it's one of my favorite things about this girl. She learned, at a very young age, that by simply telling people when you see beauty in them, you can draw out the beauty of human connection.12. Why was the author's daughter nervous in the store?A. She was frightened of the cashier.B. She was too shy to express herself.C. She was unable to pay the groceries.D. She was unhappy to greet a stranger.13. What made the cashier more energetic in her work?A. The praise from a little girl.B. The support of the customers.C. The competition environment.D. The understanding of a mother.14. What does the author think of her daughter now?A. Kind and independent.B. Lively and cheerful.C. Careful and generous.D. Smart and proud.15. What is the best title of the text?A. The Beauty Of Good MannersB. The Power In Raising Others UpC. A Girl's New Way OutOf TroubleD. A Mother's Love For Her Daughter第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。

2020届广州执信中学高三英语上学期期末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AIf you are planning to visit the historic capital city of Scotland, Edinburgh, a travel destination that people crowd to from around the world, and want to attend one Festival while you are there, keep on reading to discover more information.AKA. Imaginate Festival When: 22 May – 2 June 2021Where: Traverse Theater, Assembly RoxyA festival where kids take overEdinburgh. With a whole range of free pop-up performances, take your kids to see some of the most inspiring theatre and dance from a whole range of talented performers.EdinburghInternational Film Festival When: 19 June – 29 June 2021Where: Film House, Festival TheaterOriginally the very best in international film, it was established in 1947. The dynamic programme features everything from documentaries to shorts, along with a range of experimental cinema, in an attractive setting with a spray of red carpet charm.EdinburghArt Festival When: 25 July – 25 August 2021Where: City ArtCenter, The Scottish GalleryWith over 40 exhibitions to attend, the Edinburgh Art Festival is theUK’s largest visual arts event where you can see everything from historical works to contemporary masterpieces.The RoyalEdinburghMilitary Tattoo When: 2 – 24 August 2021Where:EdinburghCastleWith a different theme every year, over 200,000 visitors crowd toEdinburghto see the military bands and the symbolic piper set against the backdrop ofEdinburghCastle.1. Who is the AKA. Imaginate Festival intended for?A. Children.B. Talented performers.C. Parents.D. Dancers.2. What’s special about Edinburgh Art Festival?A. It includes all forms of arts.B. It is about great works in history.C. It is the largest festival in the world.D. It lasts for the longest time.3. Which Festival offers performances by soldiers?A. Edinburgh Art FestivalB. AKA. Imaginate FestivalC. The RoyalEdinburghMilitary TattooD.EdinburghInternational Film FestivalBWhen Chip heard the mail truck arriving on his sixth birthday, herushed out—not knowing that he’d come back with a treasure.Outside the house, which was decorated with birthday balloons, postwoman Shelley held a pile of boxes. One was marked with Chip’s name and a greeting for his Special day, November 5.“So,” when he came running out the door, she said, “You must be Chip!” And he said,“Yes.” She said, “Today’s your birthday?” And he started smiling. Shelley said, “So, let me see if I can find you something for your birthday.”She checked her pocket and surprised him with a gift: a dollar bill and four quarters.On this day, the 42-year-old postwoman made one little boy very happy. “He was very excited,” said his mom, Bonnie. “He came running back in the house just waving his money.” Chip is saving up to buy a Spider-man action figure.“Our family has had money problems since I lost my job. Gestures like that are valuable memories.” Her hope is that Chip and his eight-year-old sister, Bennett, will remember this when they grow up. “Not the ugly that is out there right now, but the good and the kind and the giving.”A photo of a smiling Chip and Shelley next to the mail truck has been shared widely on social media. Shelley said she was just trying to give back, because people are often nice to her eight-year-old son, Joshua.On a recent day, Chip heard the mail truck and rushed out again, this time to deliver an envelope with a thank-you card for his favorite mail carrier. Since that day, the families have kept in contact. Shelley has struggled to find someone who can take care of her son, and Bonnie has agreed to watch him at her home while his mom is on her mail route.4. Why did Chip rush out when he heard the mail truck the first time?A. To thank the postwoman.B. To get a gift box mailed to him.C. To receive birthday wishes from the driver.D. To watch the mail truck.5. What did Shelley do to make Chip happy?A. She gave him some pocket money.B. She sent him some birthday balloons.C. She presented him with a greeting card.D. She bought him a Spider-man action figure.6. What is Chip’s mother’s attitude towards Shelley?A. Grateful.B. Curious.C. Doubtful.D. Indifferent.7. What does Chip’s mother do to help Shelley?A. She offers to deliver the mails for her.B. She often helps drive her mail truck.C. She looks after her son when she is at work.D. She posts pictures of her mail truck on social media.CIsraeli Paintings—Israeli artist Menashe Kadishman will hold a personal show named "Flock of Sheep" from November 26 to December 20 at the China National Art Museum On show are 550 colourful oil paintings of sheep heads.His works have been on show inthe Metropolitan Museum in New York and Tate Gallery in London over the past 30 years.Time: 9: 00 a.m.—4: 00 p.m., November 26—December 20.Place: China National Art Museum, 1 Wusi Dajie, Dongcheng District, Beijing.Tel: 6401-2252Russian Ballet—The Kremlin Ballet from Russia will perform two immortal classical ballets—"Swan Lake" and "The Nutcracker"—at the Beijing Beizhan Theatre. Set up in 1990, the theatre has a number of first-class ballet dancers. Most of their performances are classical.Time: 7: 15 p.m., December 5 and 6 ("Swan Lake"); 7: 15 p.m., December 7 ("The Nutcracker")Place: Beizhan Theatre, Xiwai Dajie, Xicheng District, Beijing.Tel: 6605-3388Folk Concert—The Central Conservatory of Music will hold a folk concert in memory of the late musician SituHuacheng.On the programme are many popular folks such as "Moon Night on the Bamboo Tower", "Celebrating Harvest", "Deep and Lasting Friendship", "Golden Snake Dances Wildly" and "Children's Holiday".Time: 7: 30 p.m., November 25.Place: Beijing Concert Hall, 1 Beixinhuajie, Xicheng District, Beijing.Tel: 6605-58128.If a child is very fond of dancing, his parents should take him to ________.A.China National Art MuseumB.Beizhan TheatreC.Beijing Concert HallD.1 Wusi Dajie9.Menashe Kadishman is well known for painting ________.A.deerB.birdsC.sheepD.flowers10.Which of the following is TRUE?A.The folk concert will last three days.B.The ballet "The Nutcracker" will be put on once.C.The Israeli paintings will be on show for a month.D.China National Art Museum lies in Xicheng District.11.If you dial the telephone number 6605-3388 on Dec. 8, you can ________.A.go to the folk concertB.visit the Art MuseumC.watch the balletD.none of the aboveDIt’s a big change from homeless teen to Yale (耶鲁)medical school student, butperseverancepaid off for Chelesa Fearce of Clayton County, Georgia.Fearce was a fourth grader when her mom was diagnosed (诊断) with Lymphoma (淋巴瘤).That began a hard time for the family. They had to move in and out of shelters,hotels and even the family car.“I know I have been made stronger. I was homeless. My family slept on the floor and we were lucky if we got more than one full meal a day. Getting a shower, food and clean clothes was an everyday struggle,” Fearce said in a speech she gave at her high school graduation ceremony. Fearce overcame her day-to-day struggles by focusing on a better day. “I just told myself to keep working, because the future will not be like this anymore. And that helped me get through,” she told WSBTV.Fearce was determined to be a good role model for her younger sister. She found inspiration in her lategrandmother, struggling with deadly diseases, who gave Fearce emotional support. In her junior and senior year, Fearce took both high school and college courses, missing out on the free meals she depended on so she could get to her college classes. Despite having to use her cellphone to study after the shelter lights were turned off at night, she not only graduated as valedictorian (毕业生代表) of her 2013 class with a 4.5 grade average, but was also given a ride scholarship—including a meal plan to Spelman College in Atlanta.After graduation, she worked full time for two years at the National Institutes for Health inBethesda,Maryland,doing research on drugs. Last fall, she entered Yale and set a course to earn both a PhD and medical degree.12. What does the underlined word “perseverance” in paragraph 1 refer to?A. instant passion.B. continuous efforts.C. great patience.D. selfless ambitions.13. How did Fearce feel facing the sufferings?A. Sad and disappointed.B. Stressed and defeated.C. Determined and confident.D. Joyous and contented.14. What can we know about Fearce’s learning experience?A. Her grandma encouraged her to study medicine.B. Her high school offered her free meals and courses.C. She failed to study late due to frequent power cut.D. She gained remarkable high school achievement.15. What can be a suitable title for the text?A. From Homeless to YaleB. Meet American’s Top GirlC. Disabled but not DefeatedD. Chelesa Fearce: A Girl of Many Talents第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。

2020届广州执信中学高三英语上学期期末考试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AMembership CardFighting Fit is a members-only club. When you first join, we give you a computerized card. It has your name, photo and membership number on.Please have your card with you every time you use the club. The card is for your use only, and there is a small charge to provide a new one if you lose it. Members are permitted to bring guests to use the facilities at the club.A visiting guest fee is charged for each guest.Fitness ProgramsYour Fitness Program includes a meeting with one of our skilled instructors. This will happen two or three weeks after you have joined. The instructor looks at your health, your current needs and the way you live, and organizes a program suitable for you.GymnasiumOur gymnasiums are the most modem in the area and have high quality exercise equipment. For safety reasons, you must wear sportswear and trainers while exercising, and please remember to take a small towel too. It is one of our rules that you wipe the equipment after use.There is no limit to how long you spend in the gymnasiums, but we ask you to respect other members by only spending 20 minutes on each piece of equipment. There are experienced staff helping you in the gymnasiums at any time.Locker RoomsWe have large male and female locker rooms. Please ensure that your property is kept in your locker at all times. Any belongings which are found in a locker overnight will be removed and taken to Lost Property.CafeThe Cafe offers free tea, coffee and soft drinks.Suggestion BoxMembers' suggestions are always welcome, and the suggestion box and forms can be found at reception. We try to respond within two days.1.What does the Fighting Fit Health Club provide for its members?A.A personalized program on their first visit.B.A second membership card for free.C.Help from the staff all the time.D.Certain kinds of clothes and towels.2.At the Fighting Fit Health Club, you can_.A.share your membership cardB.have free drinks in the CafeC.leave personal items in the locker for 24 hoursD.spend as long as you like on all equipment3.Where is the information most probably from?A.A news report.B.A notice board.C.A guide book.D.A reference book.BDisease-carrying mosquitoes can spread diseases without affecting themselves. Nearly 700 million people get a mosquito-borne illness each year, which results in over one million deaths. Humans experience continuous pressures from disease-carrying mosquitoes in many parts of the world, so we have to find ways to fight against those insects because they keep getting scarier.Even though DEET remains the most commonly used, and most powerful, mosquito repellent ever developed, scientists are actively pursuing effective products based entirely on plant oils. While DEET is an effective contact repellent, many people dislike the oily feel and smell on their skin, and sometimes some people are sensitive to it. Consumers are always interested in alternatives to DEET and other synthetic repellents, so there are numerous natural repellents on the market.In his lab atIowaStateUniversity, Dr. Joel Coats and his team have successfully tested these repellents against three species of dangerous mosquitoes. The first group of the new repellents act through the air. These chemicals have a vapor action that provides protection, and they are called “spatial” repellents, since they act through space. These are potentially most useful in backyards, parks, and houses. The other group are the classic ones that stop insects from standing on a treated surface, such as human skin, clothing or tents; collaborators at the USDA-ARS and BioGents have conducted testing with humans to confirm the effectiveness and identify the very best ones.The new repellents were designed and made from the natural materials in plant essential oils. They maintain many of the advantages of the natural repellents: They are fully biodegradable, with no ecological concerns or environmental wastes, and generally considered safe like the thousands of types of plant essential oils used in theflavor and perfume industries. However, thorough testing will be conducted to determine if they are truly non-poisonous because there is still no enough evidence.4. What does the author mainly want to show in paragraph 1?A. The way mosquitoes spread disease.B. The high death rate of mosquito-borne illness.C. The difficulty of fighting disease-carrying mosquitoes.D. The urgency of finding tools to fight against mosquitoes.5. What is a disadvantage of DEET?A. It won’t be effective for long.B. It can’t be applied universally.C. It causes discomfort to the users.D. It greatly harms people’s health.6. What can we learn about the second group of the new repellents?A. They can kill mosquitoes indirectly.B. They are mainly used in the open air.C. They are more effective on human skin.D. They can prevent mosquitoes from contacting users.7. What’s the author’s attitude to the new repellents?A. Subjective.B. Objective.C. Doubtful.D. Disapproving.CSleep problems in early childhood may be linked to the development of certain mental health disorders in adolescence, according to a new research.A study of 7,155 children in theUnited Kingdomfound that waking up frequently during the night and irregular sleep routines as babies and toddlers was linked to psychotic experiences in children aged 12 and 13. Also, children who slept for shorter periods at night were more likely to be associated with borderline personality disorder at ages 11 and 12.The research, published in the journalJAMA Psychiatry, was the first time possible links between early childhood sleep problems and adolescent psychotic experiences and borderline personality disorder (BPD) symptoms have been examined.“We know from previous research that persistent nightmares in children have been associated with both psychosis and borderline personality disorder,” said lead author Isabel at theInstituteofMental HealthattheUniversityofBirmingham.“But nightmares don’t tell the whole story. We’ve found that, in fact, a number of behavioral sleep problems in childhood can point towards these problems in adolescence,” she said.Adolescence, typically defined as the ages between 10 and 19, is a key period in human development because of brain and hormonal changes, anditis now thought to be when many mental health problems start.Prior research inAustraliafound that babies with persistent severe sleep problems in their first year were at greater risk for anxiety and emotional issues in later childhood. Sleep problems in children and adolescents have been shown to predict the development of various emotional and behavioral problems, including depression, anxiety, attention-deficit hyperactivity disorder, risk-taking and aggression. However, findings have been inconsistent, especially when based on objective measurements of sleep, rather than parental reports.Sleep and mental health are closely connected in adults, with sleep problems increasing the risk for developing particular mental illnesses as well as resulting in mental health issues.8. What can we know from paragraph 3?A. Childhood sleep problems probably cause youth mental health problems.B. Severe sleep problems in childhood lead to emotional issues.C. Persistent nightmares in children are closely related to psychosis.D. The research has not been known to the public.9. What does “it” refer to in paragraph 6?A. Adolescence.B. Key period.C. Human developmentD. Hormonal change.10. According to the Australian research, older children who had long-term serious sleep issues at one year old are more likely to ________.A. grow slowlyB. develop attention-deficit hyperactivity disorderC. do badly in lessonsD. suffer from anxiety11. Which of the following can be the best title for the text?A. A Study About Childhood Sleep Problems Is Under ProgressB. Pay Attention to Children Who Lack SleepC. Childhood Sleep Issues Linked to Adolescent Mental Health ProblemsD. How to Help Children Develop a Good Sleep HabitDA lot of us lose life’s tough battles by starting a frontal attack—when a touch of humor might well enable us to win．Consider the case of a young friend of mine，who hita traffic jam on his way to work shortly after receiving an ultimatum about beinglate on the job．Although there was a good reason for Sam’s a being late—serious illness at home—he decided that this by-now-familiar excuse wouldn’t work any longer．His supervisor was probably already pacing up and down preparing a dismissal speech．Yes，the boss was．Sam entered the office at 9：35．The place was as quiet as a locker room；everyone was hard at work．Sam’s supervisor came up to him．Suddenly，Sam forced a grin and stretched out his hand．“How do you do！” he said．“I’m Sam Maynard．I’m applying for a job，which，I understand，became available just 35 minutes ago．Does the early bird get the worm？”The room exploded in laughter．The supervisor“clamped off”a smile and walked back to his office．Sam Maynard had saved his job—with the only tool that could win，a laugh．Humor is a most effective，yet frequently neglected，means of handling the difficult situations in our lives．It can be used for patching up differences，apologizing，saying “no”，criticizing，getting the other fellow to do what you want without his losingface．For some jobs，it’s the only tool that can succeed．It is a way to discuss subjects so sensitive that serious dialog may start a quarrel．For example，many believe that comedians on television are doing more today for racial and religious tolerancethan people in any other forum．12. Why was Sam late for his job？A. Because he was ill．B. Because he got up late．C. Because he was caught in a traffic jam．D. He was busy applying for a new job．13. The main idea of this passage is ________．A. Sam Maynard saved his job with humorB. humor is important in our livesC. early bird gets the wormD. humor can solve racial discriminations14. The phrase “clamped off” in Paragraph 3 means ________．A tried to hold back B. tried to setC. chargedD. gave out15. Which of the following statements can we infer from the passage？A. Many lose life’s battles for they are lacking in a sense of humor．B. It wasn’t the first time that Sam came late for his work．C. Sam was supposed to come to his office at 8：30．D. Humor is the most effective way of solving problems．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。

英语本试卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分。

考试结束后，将本试卷和答题卡一并交回。

第Ⅰ卷注意事项：1. 答第I卷前，考生务必将自己的姓名、准考证号填写在答题卡上。

2. 选出每小题答案后，用铅笔把答题卡上对应题目的答案标号涂黑。

如需改动，用橡皮擦干净后，再选涂其他答案标号。

不能答在本试卷上，否则无效。

第一部分阅读理解（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。

AMake a difference with your photographyTake the chance to make a real difference with your photography and contribute to One Minute on Earth, a project aiming to help street children around the world.We all live on the planet Earth, in different time zones and different parts of the world. When you read this, it will be night in one part of the world and morning somewhere else. A sunset and a sunrise is always there at any minute on earth.In 2015 on the 6th of April at 13:00 (New York time), 200 photographers all around the world clicked on the button of their cameras all within the same minute on earth. From all these amazing landscape photos and stories, a photobook was made which was sold to raise money for charity.100% of this profit was donated to the Ashalayam Deutschland organisation which used this money to support a street children center in Kolkata India. You can still buy this book from our website, which will help us continue to support the kids.We plan to hold this event annually, with the next one scheduled on June 21st 2016 at 21:00 (New York time). Money raised from the sale of the new photobook will go to a home in South Africa where 75 parentless children live. This year’s event will include not only landscape photos but also street photos. The main rule is that the sky must be shown in the photo, so all can see at what time it was shot when this year’s One Minute on Earth got toyou.1. What is the main goal of One Minute on Earth?A. To raise money for children.B. To publish a photobook.C. To find the best picture.D. To take pictures of different places.2. What do the 2015 and 2016 events have in common?A. They take place on the same date.B. They each produce a photobook.C. They require the same type of picture.D. The money raised goes to the same children.3. What is the main rule of the 2016 event?A. All photos must be landscapes.B. The photos must be taken in Africa.C. The sky must appear in every photo.D. Each photographer can submit only one photo.BFor many people, leisure time is an opportunity to get outdoors, have some fun and meet interesting people. Add two pieces of advanced 21st century technology — global positioning system (GPS) devices and the Internet —to get “geocaching”.The word geocaching comes from “geo” (earth) and “cache” (hidden storage). Geocachers log onto a website to find information about the location of a cache — usually a waterproof plastic box containing small items such as toys and CDs — along with a notebook where “finders” can enter comments and learn about the cache “owner”, the person who created and hid the cache. Finders may take any of the items in the cache but are expected to replace them with something of similar value. They then visit the website again and write a message to the owner.Geocaching became possible on May 1, 2000, when a satellite system developed by the U.S. Department of Defense was made public. Using an inexpensive GPS device, anyone on earth can send a signal to the satellites and receive information about their position. This is basically a high-tech version of orienteering, the traditional pastime which uses maps and compasses instead of GPS to determine one’s location.Geocachers are a very considerate group. Owners carefully choose a ca che’s location to give finders an enjoyable experience, such as a beautiful view or a good campsite. They also consider the environmental impact of their cache since it could result in an increased number of visitors to an area. As for the content of the caches, owners and finders must only use items that are suitable for the whole family, as caches are found by geocachers of all ages.4. According to the passage, geocaching is __________.A. an outdoor leisure activityB. a new type of technologyC. a game used to teach geographyD. a program to protect environment5. How can finders learn about the cache owners?A. By meeting them.B. By going to a website.C. From the notebook.D. From the satellite.6. Which of the following is NOT used in geocaching?A. A GPS device.B. A compass.C. A plastic container.D. The Internet.7. Which of the following is true according to the passage?A. Most geocachers are adults.B. Any item can be placed in the caches.C. The caches should be put in a remote place.D. Geocachers try to avoid damaging the environment.CAs a child, visiting the zoo was more a punishment than a treat. I didn’t find the chimps’ tea parties funny, nor the bird shows entertaining. Feeding time for seals was less painful, but their performances still seemed like they belonged more in a circus.And I hated circuses, especially the animal acts —men teasing lions, girls balancing on elephants and monkeys playing football. I knew that every trick a circus animal did was unnatural, achieved through strict training and quite possibly cruelty.Happily, during my lifetime public attitudes and the law have changed. Circuses using wild animals are now almost extinct, and zoos have definitely evolved.When my children were young, I occasionally took them to our local zoo. The elephants were in tiny cages and the gorillas looked bored as they sat peeling bananas and staring at teasing visitors. Each cage had a sign which liste d the animal’s name and where it came from. But, back then, there was little information included about the environmental challenges they faced.As a result, environmentalists and animal lovers often oppose zoos. “Animals belong in the wild,” is a common — and understandable — complaint. But what do the animals themselves prefer?Generally speaking, zoo animals have a longer life. But — you may protest — they are not free. What? Free to be hunted and killed, free to die of hunger or thirst? Maybe sitting in a cage eating bananas isn’t so bad.Not that such conditions are acceptable in modern zoos, due to the work of BIAZA, the British and Irish Association of Zoos and Aquariums. These days every zoo requires BIAZA’s approval to operate, and the association sets the standards, observes conditions in zoos and develops animal-research programmes, both in the UK and abroad. BIAZA also organises the animal exchanges between zoos all over the world.Consequently, today, most zoo animals are born and raised in zoos, live in large, comfortable enclosures and are cared for by well-trained, knowledgeable and caring zoo employees. Of course it’s no substitute for living in the wild but unfortunately this isn’t always possible. Meanwhile, why not visit your local zoo and decide for yourself?8. The passage is mainly about __________.A. how zoos have improvedB. whether a zoo should be closed downC. a new environmental organisationD. the difference between zoos and circuses9. From Paragraph 2, we can guess that the writer believes circus animals __________.A. had much shorter lives than those in the wildB. were not treated well by their trainersC. should have been placed in zoosD. were not as intelligent as those in zoos10. Which of the following roles are performed by BIAZA?A. Organising animal study projects and training zoo workers.B. Checking zoo conditions and arranging animal exchanges.C. Designing zoos and approving zoo operations.D. Caring for ill animals and setting zoo standards.11. Which of the following statements about zoos would the writer agree with?A. Zoo animals should be freed into the wild.B. Zoos are more popular now than in the past.C. Zoo animals are more restricted than in the past.D. Zoos now provide caring living conditions for animals.DFar out in the lake was a large wooden platform on which stood an improbably high diving board — a kind of wooden Eiffel Tower. It was, I’m sure, the county’s tallest wooden structure and no one had ever been known to jump from it.So it was quite a shock when our teacher, Mr. Milton, announced that he would dive off the high board that very afternoon.Word of his questionable plan was already spreading through town as Mr. Milton swam out to the platform. He was just a tiny, stick figure when he got there but even from such a distance the high board seemed almost to touch the clouds. Once at the top, he paced the enormously long board, then took some deep breaths and finally stood at edge. He was going to do it.Several hundred people had gathered at the shore to watch. Mr. Milton stood for quite a long time, then he raised his arms, took one massive bounce and launched himself into a perfect dive. It was beautiful. He fell with perfect style for what seemed minutes. The crowd fell silent. The only sound to be heard was the faint whistle of his body tearing through the air toward the water far, far below.But about three quarters of the way down he seemed to have second thoughts and began suddenly to panic, waving his arms and legs like someone having a bad dream. When he was perhaps thirty feet above the water, he gave up on waving and spread his arms and legs wide, apparently hoping that it would somehow slow his fall.It didn’t.He hit the water at over six hundred miles an hour. The impact was so loud that it made birds fly out of their trees three miles away. I don’t think he entered the water at all. He just bounced off it, about fifteen feet back into the air. After that, he lay still on the surface, spinning like an autumn leaf.He was brought to shore by two passing fishermen in a rowboat and placed on an old blanket where he spent the rest of the afternoon. Occasionally he accepted small sips of water, but otherwise was too shocked to speak. From head to toe, he was covered with deep red bruises.... It was the best day of my life.12. What did the writer think of Mr. Milton’s plan to jump from the diving board?A. Crazy.B. Disappointing.C. Heroic.D. Confused.13. In Paragraph 3, Mr Milton is described as “a tiny, stick figure” because he was __________.A. tired after swimmingB. very small and thinC. very far awayD. sure to be broken14. Why did Mr. Milton suddenly start swinging his arms and legs during the dive?A. He thought it was the best way to slow his fall.B. He lost his confidence and started to panic.C. He was signalling the crowd for help.D. He wanted to show his courage.15. Which of the following sentences from the passage is an example of a fact?A. He hit the water at over six hundred miles an hour.B. The impact was so loud that it made birds fly out of trees up to three miles away.C. He just bounced off it, about fifteen feet back into the air.D. He was brought to shore by two passing fishermen in a rowboat ….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。

2015-2016学年度第一学期高一级英语科期末考试试卷本试卷分选择题和非选择题两部分，共13页，满分为150分。

考试用时120分钟。

注意事项：1、答卷前，考生务必用黑色字迹的钢笔或签字笔将自己的姓名和学号填写在答题卡和答卷密封线内相应的位置上，用2B铅笔将自己的学号填涂在答题卡上。

2、选择题每小题选出答案后，有2B铅笔把答题卡上对应题目的答案标号涂黑；如需改动，用橡皮擦干净后，再选涂其他答案；不能答在试卷上。

3、非选择题必须用黑色字迹的钢笔或签字笔在答卷纸上作答，答案必须写在答卷纸各题目指定区域内的相应位置上，超出指定区域的答案无效；如需改动，先划掉原来的答案，然后再写上新的答案；不准使用铅笔和涂改液。

不按以上要求作答的答案无效。

4、考生必须保持答题卡的整洁和平整。

I 卷 (共95分，其中选择题为90分)一. 听力理解（共15小题，满分15分）第一节听下面4段对话或独白。

录音播放两遍。

（共10小题，每小题1分，满分10分）听第一段对话，回答第1-2题：1. Why does the man have a headache?A. Because he is sick.B. Because he drank too much.C. Because he didn’t have enough sleep.2. What does the woman think of last night?A. Enjoyable.B. Boring.C. So-so.听第二段对话，回答第3-5题：3. What are the two speakers going to do tonight?A. Continue to work in the office.B. Go to see a movie.C. Watch a Peking Opera.4. Where will the two speakers have dinner?A. In a restaurant.B. At the hotel.C. In the office.5. What can we learn from the conversation?A. The man is not interested in Peking Opera.B. The restaurant is closer to the cinema than the hotel.C. The two speakers are too busy to go out for fun.听第三段独白，回答第6-8题：6. Who was to give a talk?A. A famous teacher.B. A famous scientist.C. A famous writer.7. Where was the talk?A. In the town theater.B. In the town library.C. In a school.8. Why did Tom look worried?A. Because there was no electricity suddenly.B. Because he forgot to bring his cell phone with him.C. Because the guest speaker couldn’t come and give the talk.听第四段对话，回答第9-10题：9. Why is it easy for people to get addicted to online games according to the man?A. Because playing online games is not like real life.B. Because playing online games can help them relax.C. Because playing online games makes them more popular.10. What is the probable relationship between the two speakers?A. Neighbors.B. Classmates.C. Workmates.第二节听取信息 (共5小题；每小题1分，满分5分)听下面一段独白，请根据题目要求，从所听到的内容中获取必要的信息，填入答卷标号为1—5的空格中。

2022-2023高三上英语期末模拟试卷注意事项：1．答题前，考生先将自己的姓名、准考证号填写清楚，将条形码准确粘贴在考生信息条形码粘贴区。

2．选择题必须使用2B铅笔填涂；非选择题必须使用0．5毫米黑色字迹的签字笔书写，字体工整、笔迹清楚。

3．请按照题号顺序在各题目的答题区域内作答，超出答题区域书写的答案无效；在草稿纸、试题卷上答题无效。

4．保持卡面清洁，不要折叠，不要弄破、弄皱，不准使用涂改液、修正带、刮纸刀。

第一部分（共20小题，每小题1.5分，满分30分）1．—I will be a vice president in a year or two.—You can’t be serious!_______.A．I can’t make it B．I can’t help it C．I won’t tell a soul D．I wouldn’t bet on it2．NASA has made a ________ that our earth has no threat associated with the film 2012 which is based on pure myths.A．clarification B．classification C．identification D．presentation3．Keeping a regular sleep schedule is important for setting a baby's bodyclock,_______researchers note should be in place by about 4 months of age.A．whose B．which C．when D．where4．--I feel nervous when taking an exam.-- and you can do it well.A．Take it w easy B．Take your time C．Good luck D．It’s up to you 5．Abraham set himself up in front of his daughter, hands ________ her hair, and was close to tears, reluctant to tear himself from her.A．to toy with B．toyed with C．toying with D．being toyed with6．Their youngest girl is at the stage ______ she can say a single word but not a full sentenceA．when B．whichC．that D．where7．Michelle Obama wears clothes that anyone can buy in a mall and ________ she may have a larger effect on consumers than ordinary models.A．furthermore B．otherwise C．nevertheless D．therefore8．These remarkable findings suggest the elephants have ________ a memory capacity to make distinctions between human voices.A．built up B．packed up C．brought up D．took up9．The problem _______he will have his college education at home or abroad remainsuntouched.A．how B．whether C．that D．when10．-Excuse me, but why am I not allowed to use the gym?-________，but your room price doesn't cover it.A．No hurry B．No wonder C．No offence D．No problem11．As a doctor, I spend most of the time with my patients, and that’s ________ it is in my day.A．how B．when C．why D．where12．This course is of great interest to students, _____ to improve their writing skills. A．hope B．to hopeC．hoping D．hoped13．But for your instruction, I ______ such great progress in so short a time. Thanks a lot.A．wouldn’t make B．hadn’t madeC．won’t make D．wouldn’t ha ve made14．---Can you tell us your ________ for happiness and a long life？---Living every day to the fullest，definitely.A．recipe B．effortC．content D．demand15．—________? You look really down.—I’m tired of my job. There are endless problems to deal with.A．Why bother B．So whatC．What’s up D．Why not16．More often than not, the enterprise around us are getting even richer, ________ recipe is don’t put all your eggs in one basket.A．of which B．whichC．whose D．of whom17．—You’ve made great progress in your English study, haven’t you?—Yes, but much .A．remains to do B．is remained to doC．remains to be done D．is remained to be done18．— How do you find your new classmate?— Oh, she is really ________ of a musician, who can not only sing very beautifully, but also compose skillfully.A．something B．somebodyC．everything D．everybody19．After three years of preparation for the 2011 Xi’an International Horticultural Expo (西安园博)会），the city is presenting the world______ many people think is the green Special Olympics．A．that B．which C．what D．where20．— I am so glad to find you at home. Can you do me a favor?— Sure. _______?A．Why not B．What’s upC．How come D．How is it going第二部分阅读理解（满分40分）阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。

2020-2021学年广州执信中学高三英语上学期期末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APeople in the Middle Ages did eat with their hands. Personal utensils (餐具) were mostly unheard of, especially forks. There were spoons to help serve, but only special guests would receive a knife from the host. Everyone else would be expected to bring their own. Of course, eating with one's hands can be quite a sticky situation, so towels were provided to help diners stay at least somewhat clean as they ate.Still, dining was often a messy affair. At special occasions in the wealthiest households, women tended to dine alone, separate from the men. Women were expected to uphold a quality of grace. Eating greasy meat by hand would certainly not help! Once the men and women had finished their meals, they would come together to socialize.Dietary scholars of the Middle Ages believed that the foods in a meal needed to be served and eaten in order of heaviness. The lightest and most easily digested foods, such as fruits and cheeses, were eaten first to help the digestive (消化) system get started. Once digestion was underway, greens and light meats, such as lettuce, cabbage and chicken, could be eaten. Last came the heavier vegetables and meats, such as carrots, beans, beef, pork, and mutton. This method was considered the most healthful way to eat.The main and largest meal of the day was supper, and it was eaten at midday. Dinner was a light meal, and many of those in nobility (贵族) -the highest levels of the Middle Ages society-skipped breakfast altogether. Breakfast was considered unnecessary for those who did not perform physical work. Snacks and any other eating during the day were viewed the same way. Commoners, or the working class, were allowed to eat breakfast and small meals throughout the day.1. What did people in the Middle Ages usually do at the dinner table?A. They cleaned hands before meals.B. They used personal utensils.C. They had to use knives at dinner.D. They ate mostly with hands.2. What is the third paragraph mainly about?A. The order of eating foods.B. The weight of various foods.C. The principles of digesting foods.D. The list of healthy foods.3. Why did the nobility avoid eating breakfast?A. Breakfast was wasted for the nobility.B. Breakfast was viewed as unnecessary.C. Breakfast was considered as a light meal.D. Breakfast was saved for commoners.BA maverick describes a person who thinks independently. A maverick refuses to follow the customs or rules of a group to which he or she belongs. In the US, a maverick is often admired for his or her free spirit, although others who belong to the maverick’s group may not like the maverick’s independent ways.But where did the word “maverick” come from?Early in the 1800s, a man named Samuel Augustus Maverick settled down in Texas, which was a place of wide-open land, rich soil, cattle ranches(牛场) and cowboys. As the years passed, Mr. Maverick increased his property(财产) in Texas. Before long, he owned huge pieces of land that were good for raising cattle. But he had no cattle. He wasn’t a rancher.One day, a man came to Samuel Maverick to pay him an old debt. But the man didn’t have enough money. So he offered Mr. Maverick 400 head of cattle. Mr. Maverick accepted them, but he didn’t really want them. He simply put the cattle on his land to eat and care for themselves.It was not long before the cows reproduced(繁殖). The calves grew and had more calves. Soon, hundreds of cows and calves moved freely across Samuel Maverick’s land. They also moved across the land of nearby ranch owners.It was a tradition among ranchers in the West to put a mark of ownership on newborn calves. They burned the name of their ranch into the animal’s skin with a hot iron. The iron made a clear mark called a “brand”. Brands allowed ranchers to easily see who owned which cattle.Samuel Maverick refused to brand his calves. “Why should I?” he asked. If all the other cattle owners branded theirs, then those without a brand belonged to him.And this is how the word “maverick” entered the American language. It meant a calf without a brand. As time passed, the word “maverick” took on a wider meaning. It came to mean a person who was too independent tofollow even his or her own group.4. Why did the man give Samuel Maverick 400 head of cattle?A. To get some money.B. To return what he owed him.C. To buy some of his land.D. To ask him to raise them.5. How could the ranchers easily know who the cattle belonged to?A. Through the brand on the cattle.B. Through the name of the cattle.C. Through the appearance of the cattle.D. Through the land on which the cattle stayed.6. What can we learn about Samuel Augustus Maverick from the text?A. He was born in Texas.B. He took good care of all his cattle.C. He didn’t really want to accept the cattle.D. He followed the tradition of ranchers in the West.7. What is the text mainly about?A. How to become an independent thinker.B. “Maverick” means a calf without a brand.C. The life story of Samuel Augustus Maverick.D. How the word “maverick” got into American English.C“My P.E. teacher taught me maths.”It has been a common joke for years but when a P.E. teacher applied for the head-teacher job, many parents worried that “the joke could come true”. Some parents asked, “Does the P.E. teacher know maths and English?If not, how is he supposed to tutor the students?” But there were still parents who believed P.E. teachers had more time to discipline the students since they didn’t have many classes.This concern is actually a “subject bias”, that is, choosing a P.E. teacher as the head-teacher is not good for the students’ grades since he doesn’t know Chinese, maths, or English. It is acceptable for Chinese teachers, maths teachers and English teachers to be head-teachers because these subjects are important to entrance exams and scores. Such a concern reflects parents’ anxiety in the current educational environment, which tends to link the head-teacher’s responsible subject with the facts whether the school cares about the class and the children’s performances in the subject.Many people care about their kids’ academic performances only. They don’t care about their kids’ P.E. performance at all. Even if kids have P.E. classes, parents care little. P.E. teachers are in humble position and their classes are often occupied by other teachers. Of course, if students, P.E. performance is related to grades and entrance exams, parents won’t mind “a P.E. teacher being the head-teacher”.At the moment, P.E. is gradually included in entrance exams.In terms of high school entrance examination,Guangzhouwill launch a new high school entrance exam which includes P.E. performance and Health examination in 2021, raising the score to 70 points.In terms of the college entrance examination, universities having the right of independent enrollments added P.E. tests to their entrance exams in 2019. This practice is seen as an important signal that the assessment of physical fitness and athletic ability, which are important aspects of a student’s overall quality, may be included in the college entrance examination in the future.We hope that it’s a trend for P.E. teachers, music teachers and art teachers to become head-teachers.8. By saying “My P.E. teacher taught me maths”, what does the author intend to show us?A. It is just a joke that seldom happened in reality.B. P.E. teachers hardly assist students in maths.C. P.E. teachers are good at teaching maths..D. Parents doubt the ability of P.E. teacher.9. We can infer from paragraph 2 that a P.E. teacher .A. is of little benefit for students’ academic performanceB. is humbler than Chinese, math or English teachersC. reflects whether the school cares about the classD. gets unfairly judged due to the current educational system10. Why doesGuangzhouraise proportion of P.E. performance in high school entrance examination?A. To raise students’ awareness of physical health.B. To call on parents to pay attention to P.E. teachers.C. To test the overall ability of high school students.D. To make P.E. teachers equal with other teachers.11. What opinion does the author hold towards P.E. teachers working as head-teachers?A. Neutral.B. Unexpected.C. Supportive.D. Critical.DWhen a fire broke out in my home in the middle of the night, I knew I'd do anything I could to save my family. The medicine that I take for my rheumatoid arthritis causes me to wake up inthe middle of the night with a dry mouth. January 15, 2016, was no different. I, Indiana, US, awoke at 2:30am needing water.I was walking back upstairs from the kitchen when I heard my bulldog , Rock. Whatever Rock was doing downthere, it made enough noise for me to go to him. By the time I made it to the bottom of the stairs, he was running up, and he never came up the stairs, no matter what. I think that was his way of telling me, "We've got to go back up. "When I got to the top of the stairs, I turned around and saw a light on, but I didn't remember leaving one on. I walked downstairs again, and that's when I saw fire. I immediately shouted to my wife to wake up and get our three kids. I grabbed a knife and cut out the plastic that covered the window to the porch roof. I then pried open the window and kicked out the screen. I started screaming for help. But help never came. I got everybody out on the roof and threw a blanket out there so we wouldn't slip off. It was cold, January cold. Then I started screaming for help. But help never came.Now, I'm scared of heights and have physical issues, what with my rheumatoid arthritis, but I couldn't let my family burn up. So I jumped off the roof. I didn't scoot to the edge; I just jumped and got the wind knocked out of me when I landed. I found our ladder, placed it against the house, and climbed back up to the roof. I wrapped my arms around my daughter and carried my nine - month - old with my teeth, by his little sleeper. Then I climbed down the ladder. Once on the ground, I had my little girl hold her brother, and I went back up to the roof to get my other daughter. Then I went back up again and got my wife. I tried to get my dog, but he just disappeared in the black smoke. I never saw him alive again,I'm no hero. I'm just an ordinary person who'd help anybody. This happened to be the time when I helped my own family. I live to protect my family. Just likeRock—he lived to protect us.12. What made the author wake up at 2:30am?A. My dog's barkingB. The medicine's effectC. A burning fireD. A noise downstairs13. How did Rock tell the author the danger downstairs?A. He turned on a light downstairs.B. He ran to the author's room upstairs.C. He kept barking and running up to stairs.D. He made some noise at the bottom of the stairs.14. What did the author do after his family all stood on the roof?A. He placed a blanket to keep warm.B. He started screaming for help.C. He jumped off the roof.D. He broke open the window and kicked out the screen15. Which ofthe following best describe the author?A. Courageous and responsibleB. Caring and selfishC. Loyal and braveD. Strong and considerate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。

2011-2012学年度第一学期高三级英语科期末考试试题本试卷分选择题和非选择题两部分，共 14 页，满分为150分。

考试用时120分钟。

注意事项：1、答卷前，考生务必用黑色字迹的钢笔或签字笔将自己的姓名和学号填写在答题卡和答卷密封线内相应的位置上，用2B铅笔将自己的学号填涂在答题卡上。

2、选择题每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑；如需改动，用橡皮擦干净后，再选涂其他答案；不能答在试卷上。

3、非选择题必须用黑色字迹的钢笔或签字笔在答卷纸上作答，答案必须写在答卷纸各题目指定区域内的相应位置上，超出指定区域的答案无效；如需改动，先划掉原来的答案，然后再写上新的答案；不准使用铅笔和涂改液。

不按以上要求作答的答案无效。

4、考生必须保持答题卡的整洁和平整。

第I卷 (共95分)I. 单项选择（共15小题，每小题1分，满分15分）1.But for their help, we ________ the program in time.A. will not finishB. cannot finishC. could not have finishedD. had not finished2.It’s time that I ________my hair cut. It’s the eighth time that I ________tothe barber’s shop.A. had; have goneB. had; goC. have; wentD. have; have gone3. I was very busy yesterday. Otherwise, I ________ part in your birthday party.A. would takeB. did takeC. had takenD. would have taken4.Will you read me a story, Mummy?--OK. You ________ have one if you go to bed as soon as possible.A. mustB. couldC. shallD. might5. But for the fact that China ________ also affected by the global economiccrisis, we ________ fewer unemployed workers now.A. was; would have hadB. is; would haveC. were; would haveD. were; would have had6. Caused by the quake, the rising sea water has flooded ________ was a big islandwith a large population.A. whatB. whereC. whichD. that7. These two countries are similar ________ they both have a high snowfall during winter.A. to whichB. in whichC. in thatD. except that8. Many experts hold the view ________ teachers’ development is ________ thekey to better education lies.A. which; whereB. that; whereC. which; in whichD. that; in which9. She showed the visitors around the museum, the construction ________ hadtaken more than three years.A. for whichB. with whichC. of whichD. to which10. --- I prefer shutting myself in and listening to music all day on Sundays.--- That’s ________ I don’t agree. You should have a more active life.A.whereB. howC. whenD. what11. It was a nice meal, _________ a little expensive.A. sinceB. whetherC. asD. though12.It was April 29, 2011 _________ Prince William and Kate Middleton walkedinto the palace hall of the wedding ceremony.A. thatB. sinceC. whenD. before13._________ unemployment and crime are high, it can be assumed that the latteris due to the former.A. WhereB. BeforeC. UntilD. Unless14.The girl had hardly rung the bell _________ the door was opened suddenly,and her friend rushed out to greet her.A. untilB. whenC. sinceD. as15. All the dishes in this menu, _________ otherwise stated, will serve two tothree people.A. asB. ifC. thoughD. unlessII．语言知识及应用(共两节，满分45 分)第一节完形填空(共15小题，每小题2分，满分30 分)阅读下面短文，掌握其大意，然后从16—30各题所给的A、B、C 和D 项中，选出最佳选项，并在答题卡上将该项涂黑。

2016-2017学年广东省广州市执信中学高一（上）期末数学试卷一、选择题：（本大题共12小题，每小题5分，共60分.在每小题给出的四个选项中，选择一个符合题目要求的选项涂在答题卡相应的位置.）1．（5.00分）已知集合M={x∈Z|x（x﹣3）≤0}，N={x|lnx＜1}，则M∩N=（）A．{1，2}B．{2，3}C．{0，1，2}D．{1，2，3}2．（5.00分）函数f（x）=lnx﹣的零点所在的大致区间是（）A．B．（1，2） C．（2，3） D．（e，+∞）3．（5.00分）若m，n是两条不同的直线，α，β，γ是三个不同的平面，下些说法正确的是（）A．若m⊂β，α⊥β，则m⊥αB．若m⊥β，m∥α，则α⊥βC．若α∩γ=m，β∩γ=n，m∥n，则α∥βD．若α⊥γ，α⊥β，，则γ⊥β4．（5.00分）已知函数，设，则有（）A．f（a）＜f（b）＜f（c） B．f（a）＜f（c）＜f（b）C．f（b）＜f（c）＜f （a）D．f（b）＜f（a）＜f（c）5．（5.00分）将正方体（如图1所示）截去两个三棱锥，得到图2所示的几何体，则该几何体的左视图为（）A．B．C．D．6．（5.00分）一种专门侵占内存的计算机病毒，开机时占据内存2KB，然后每3分钟自身复制一次，复制后所占内存是原来的2倍，若该病毒占据64MB内存（1MB=210KB），则开机后经过（）分钟．A．45 B．44 C．46 D．477．（5.00分）若当x∈R时，函数f（x）=a|x|始终满足0＜|f（x）|≤1，则函数y=log a||的图象大致为（）A．B．C．D．8．（5.00分）在平面直角坐标系中，下列四个结论：①每一条直线都有点斜式和斜截式方程；②倾斜角是钝角的直线，斜率为负数；③方程与方程y+1=k（x﹣2）可表示同一直线；④直线l过点P（x0，y0），倾斜角为90°，则其方程为x=x°；其中正确的个数为（）A．1 B．2 C．3 D．49．（5.00分）如图所示，圆柱形容器的底面直径等于球的直径2R，把球放在在圆柱里，注入水，使水面与球正好相切，然后将球取出，此时容器中水的深度是（）A．2R B．C．D．10．（5.00分）一个棱锥的三视图如图（尺寸的长度单位为m），则该棱锥的全面积是（单位：m2）．（）A．B．C．D．11．（5.00分）如图，正方体AC1的棱长为1，过点A作平面A1BD的垂线，垂足为点H，则以下命题中，错误的命题是（）A．点H是△A1BD的垂心B．AH垂直平面CB1D1C．AH的延长线经过点C1D．直线AH和BB1所成角为45°12．（5.00分）已知函数y=f（x）是定义域为R的偶函数．当x≥0时，f（x）=若关于x的方程[f（x）]2+af（x）+b=0，a，b∈R有且仅有6个不同实数根，则实数a的取值范围是（）A．B．C． D．二、填空题：（本大题共4小题，每小题5分，共20分.答案填在答卷上.）13．（5.00分）计算的结果是．14．（5.00分）已知4a=2，lgx=a，则x=．15．（5.00分）过点（1，2）且在两坐标轴上的截距相等的直线的方程．16．（5.00分）已知：在三棱锥P﹣ABQ 中，D，C，E，F分别是AQ，BQ，AP，BP的中点，PD与EQ交于点G，PC与FQ交于点H，连接GH，则多面体ADGE﹣BCHF的体积与三棱锥P﹣ABQ体积之比是．三、解答题：（本大题共6小题，共70分.解答应写出文字说明、证明过程或演算步骤，并写在答题卷相应位置.）17．（10.00分）如图，在平行四边形OABC中，点C（1，3）．（1）求OC所在直线的斜率；（2）过点C作CD⊥AB于点D，求CD所在直线的方程．18．（12.00分）如图，正方形ABCD所在平面与三角形CDE所在平面相交于CD，AE⊥平面CDE，且AE=1，AB=2．（Ⅰ）求证：AB⊥平面ADE；（Ⅱ）求凸多面体ABCDE的体积．19．（12.00分）已知函数为奇函数，（1）求a的值；（2）当0≤x≤1时，关于x的方程f（x）+1=t有解，求实数t的取值范围；（3）解关于x的不等式f（x2﹣mx）≥f（2x﹣2m）．20．（12.00分）某家庭进行理财投资，根据长期收益率市场调查和预测，投资债券等稳键型产品A的收益f（x）与投资金额x的关系是f（x）=k1x，（f（x）的部分图象如图1）；投资股票等风险型产品B的收益g（x）与投资金额x的关系是，（g（x）的部分图象如图2）；（收益与投资金额单位：万元）．（1）根据图1、图2分别求出f（x）、g（x）的解析式；（2）该家庭现有10万元资金，并全部投资债券等稳键型产品A及股票等风险型产品B两种产品，问：怎样分配这10万元投资，才能使投资获得最大收益，其最大收益为多少万元？21．（12.00分）如图，直三棱柱ABC﹣A1B1C1中，AC⊥BC，AC=BC=CC1=2，M，N 分别为AC，B1C1的中点．（Ⅰ）求线段MN的长；（Ⅱ）求证：MN∥平面ABB1A1；（Ⅲ）线段CC1上是否存在点Q，使A1B⊥平面MNQ？说明理由．22．（12.00分）已知函数f（x）=ax2+bx+c（a，b，c∈R）．（1）若a＜0，b＞0，c=0，且f（x）在[0，2]上的最大值为，最小值为﹣2，试求a，b的值；（2）若c=1，0＜a＜1，且||≤2对任意x∈[1，2]恒成立，求b的取值范围．（用a来表示）2016-2017学年广东省广州市执信中学高一（上）期末数学试卷参考答案与试题解析一、选择题：（本大题共12小题，每小题5分，共60分.在每小题给出的四个选项中，选择一个符合题目要求的选项涂在答题卡相应的位置.）1．（5.00分）已知集合M={x∈Z|x（x﹣3）≤0}，N={x|lnx＜1}，则M∩N=（）A．{1，2}B．{2，3}C．{0，1，2}D．{1，2，3}【分析】解不等式化简集合M、N，根据交集的定义写出M∩N．【解答】解：集合M={x∈Z|x（x﹣3）≤0}={x∈Z|0≤x≤3}={0，1，2，3}，N={x|lnx＜1}={x|0＜x＜e}，则M∩N={1，2}．故选：A．2．（5.00分）函数f（x）=lnx﹣的零点所在的大致区间是（）A．B．（1，2） C．（2，3） D．（e，+∞）【分析】由函数的解析式求得f（2）＜0，f（3）＞0，可得f（2）f（3）＜0，根据函数零点的判定定理可得函数的零点所在的大致区间．【解答】解：∵函数，∴f（2）=ln2﹣1＜0，f（3）=ln3﹣＞0，故有f（2）f（3）＜0，根据函数零点的判定定理可得函数的零点所在的大致区间为（2，3），故选：C．3．（5.00分）若m，n是两条不同的直线，α，β，γ是三个不同的平面，下些说法正确的是（）A．若m⊂β，α⊥β，则m⊥αB．若m⊥β，m∥α，则α⊥βC．若α∩γ=m，β∩γ=n，m∥n，则α∥βD．若α⊥γ，α⊥β，，则γ⊥β【分析】对于A，若m⊂β，α⊥β，则m与α平行、相交或m⊂α；对于B，根据线面垂直的判定定理进行判断；对于C，若αlγ=m，βlγ=n，m∥n，则α∥β或α与β相交；对于D，若α⊥γ，α⊥β，则γ与β相交或平行．【解答】解：若m⊂β，α⊥β，则m与α平行、相交或m⊂α，故A不正确；若m⊥α，m∥β，则α⊥β，因为m∥β根据线面平行的性质在β内至少存在一条直线与m平行，根据线面垂直的判定：如果两条平行线中的一条垂直于这个平面，那么另一条也垂直于该平面，故B正确；若αlγ=m，βlγ=n，m∥n，则α∥β或α与β相交，故C不正确；若α⊥γ，α⊥β，则γ与β相交或平行，故D不正确．故选：B．4．（5.00分）已知函数，设，则有（）A．f（a）＜f（b）＜f（c） B．f（a）＜f（c）＜f（b）C．f（b）＜f（c）＜f （a）D．f（b）＜f（a）＜f（c）【分析】由复合函数的单调性可得函数f（x）在（﹣1，+∞）上单调递增，进而得出大小关系．【解答】解：由复合函数的单调性可得函数f（x）在（﹣1，+∞）上单调递增，又，，，因此b＞c＞a，∴f（b）＞f（c）＞f（a）．故选：B．5．（5.00分）将正方体（如图1所示）截去两个三棱锥，得到图2所示的几何体，则该几何体的左视图为（）A．B．C．D．【分析】直接利用三视图的画法，画出几何体的左视图即可．【解答】解：由题意可知几何体前面在右侧的射影为线段，上面的射影也是线段，后面与底面的射影都是线段，轮廓是正方形，AD1在右侧的射影是正方形的对角线，B1C在右侧的射影也是对角线是虚线．如图B．故选：B．6．（5.00分）一种专门侵占内存的计算机病毒，开机时占据内存2KB，然后每3分钟自身复制一次，复制后所占内存是原来的2倍，若该病毒占据64MB内存（1MB=210KB），则开机后经过（）分钟．A．45 B．44 C．46 D．47【分析】n个3分钟后，所占内存是原来的2n+1倍，从而应有2n+1=64×210=216，由此能求出结果．【解答】解：因为开机时占据内存2KB，然后每3分钟自身复制一次，复制后所占内存是原来的2倍，所以3分钟后占据内存22KB，两个3分钟后占据内存23KB，三个3分钟后占据内存24KB，故n个3分钟后，所占内存是原来的2n+1倍，则应有2n+1=64×210=216，∴n=15，15×3=45，故选：A．7．（5.00分）若当x∈R时，函数f（x）=a|x|始终满足0＜|f（x）|≤1，则函数y=log a||的图象大致为（）A．B．C．D．【分析】由于当x∈R时，函数f（x）=a|x|始终满足0＜|f（x）|≤1，利用指数函数的图象和性质可得0＜a＜1．先画出函数y=log a|x|的图象，此函数是偶函数，当x＞0时，即为y=log a x，而函数y=log a||=﹣log a|x|，即可得出图象．【解答】解：∵当x∈R时，函数f（x）=a|x|始终满足0＜|f（x）|≤1．因此，必有0＜a＜1．先画出函数y=log a|x|的图象：黑颜色的图象．而函数y=log a||=﹣log a|x|，其图象如红颜色的图象．故选：B．8．（5.00分）在平面直角坐标系中，下列四个结论：①每一条直线都有点斜式和斜截式方程；②倾斜角是钝角的直线，斜率为负数；③方程与方程y+1=k（x﹣2）可表示同一直线；④直线l过点P（x 0，y0），倾斜角为90°，则其方程为x=x°；其中正确的个数为（）A．1 B．2 C．3 D．4【分析】①，斜率不存在的直线无点斜式和斜截式方程；②，由倾斜角与斜率的关系知，倾斜角是钝角的直线，斜率为负数；③，方程（x≠2）与方程y+1=k（x﹣2）（x∈R）不表示同一直线；④，直线l过点P（x0，y0），倾斜角为90°，则其方程为x=x°；【解答】解：对于①，斜率不存在的直线无点斜式和斜截式方程，故错；对于②，由倾斜角与斜率的关系知，倾斜角是钝角的直线，斜率为负数，正确；对于③，方程（x≠2）与方程y+1=k（x﹣2）（x∈R）不表示同一直线，故错；对于④，直线l过点P（x0，y0），倾斜角为90°，则其方程为x=x0，正确；故选：B．9．（5.00分）如图所示，圆柱形容器的底面直径等于球的直径2R，把球放在在圆柱里，注入水，使水面与球正好相切，然后将球取出，此时容器中水的深度是（）A．2R B．C．D．【分析】求出水的体积，即可求出容器中水的深度．【解答】解：由题意，水的体积==，∴容器中水的深度h==，故选：C．10．（5.00分）一个棱锥的三视图如图（尺寸的长度单位为m），则该棱锥的全面积是（单位：m2）．（）A．B．C．D．【分析】由三视图可以看出，此几何体是一个侧面与底面垂直的三棱锥，垂直于底面的侧面是一个高为2，底边长也为2的等腰三角形，底面与垂直于底面的侧面全等，此两面的面积易求，另两个与底面不垂直的侧面是全等的，可由顶点在底面上的射影作出此两侧面底边的高，将垂足与顶点连接，此线即为侧面三角形的高线，求出侧高与底面的边长，用三角形面积公式求出此两侧面的面积，将四个面的面积加起来即可【解答】解：由三视图可以看出，此几何体是一个侧面与底面垂直且底面与垂直于底面的侧面全等的三棱锥由图中数据知此两面皆为等腰三角形，高为2，底面边长为2，故它们的面积皆为=2，由顶点在底面的投影向另两侧面的底边作高，由等面积法可以算出，此二高线的长度相等，为，将垂足与顶点连接起来即得此两侧面的斜高，由勾股定理可以算出，此斜高为2，同理可求出侧面底边长为，可求得此两侧面的面积皆为=，故此三棱锥的全面积为2+2++=，故选：A．11．（5.00分）如图，正方体AC1的棱长为1，过点A作平面A1BD的垂线，垂足为点H，则以下命题中，错误的命题是（）A．点H是△A1BD的垂心B．AH垂直平面CB1D1C．AH的延长线经过点C1D．直线AH和BB1所成角为45°【分析】如上图，正方体的体对角线AC1有以下性质：①AC1⊥平面A1BD，AC1⊥平面CB1D1；②AC1被平面A1BD与平面CB1D1三等分；③AC1=AB等．（注：对正方体要视为一种基本图形来看待．）【解答】解：因为三棱锥A﹣A1BD是正三棱锥，所以顶点A在底面的射影H是底面中心，所以选项A正确；易证面A1BD∥面CB1D1，而AH垂直平面A1BD，所以AH垂直平面CB1D1，所以选项B正确；连接正方体的体对角线AC1，则它在各面上的射影分别垂直于BD、A1B、A1D等，所以AC1⊥平面A1BD，则直线A1C与AH重合，所以选项C正确；故选：D．12．（5.00分）已知函数y=f（x）是定义域为R的偶函数．当x≥0时，f（x）=若关于x的方程[f（x）]2+af（x）+b=0，a，b∈R有且仅有6个不同实数根，则实数a的取值范围是（）A．B．C． D．【分析】要使关于x的方程[f（x）]2+af（x）+b=0，a，b∈R有且只有6个不同实数根，转化为t2+at+b=0必有两个根t1、t2，分类讨论求解．【解答】解：依题意f（x）在（﹣∞，﹣2）和（0，2）上递增，在（﹣2，0）和（2，+∞）上递减，当x=±2时，函数取得极大值；当x=0时，取得极小值0．要使关于x的方程[f（x）]2+af（x）+b=0，a，b∈R 有且只有6个不同实数根，设t=f（x），则则有两种情况符合题意：（1），且，此时﹣a=t1+t2，则；（2）t1∈（0，1]，，此时同理可得，综上可得a的范围是．故选：C．二、填空题：（本大题共4小题，每小题5分，共20分.答案填在答卷上.）13．（5.00分）计算的结果是2．【分析】利用指数幂的运算法则、对数的运算法则和换底公式即可得出．【解答】解：运算=1﹣++lg2+lg5=1﹣0.4+0.4+1=2．故答案为2．14．（5.00分）已知4a=2，lgx=a，则x=．【分析】根据指数函数和对数函数的定义计算即可．【解答】解：∵4a=2，∴22a=2，即2a=1解得a=∵lgx=a，∴lgx=∴x=，故答案为：15．（5.00分）过点（1，2）且在两坐标轴上的截距相等的直线的方程2x﹣y=0或x+y﹣3=0．【分析】分两种情况考虑，第一：当所求直线与两坐标轴的截距不为0时，设出该直线的方程为x+y=a，把已知点坐标代入即可求出a的值，得到直线的方程；第二：当所求直线与两坐标轴的截距为0时，设该直线的方程为y=kx，把已知点的坐标代入即可求出k的值，得到直线的方程，综上，得到所有满足题意的直线的方程．【解答】解：①当所求的直线与两坐标轴的截距不为0时，设该直线的方程为x+y=a，把（1，2）代入所设的方程得：a=3，则所求直线的方程为x+y=3即x+y﹣3=0；②当所求的直线与两坐标轴的截距为0时，设该直线的方程为y=kx，把（1，2）代入所求的方程得：k=2，则所求直线的方程为y=2x即2x﹣y=0．综上，所求直线的方程为：2x﹣y=0或x+y﹣3=0．故答案为：2x﹣y=0或x+y﹣3=016．（5.00分）已知：在三棱锥P﹣ABQ 中，D，C，E，F分别是AQ，BQ，AP，BP的中点，PD与EQ交于点G，PC与FQ交于点H，连接GH，则多面体ADGE ﹣BCHF的体积与三棱锥P﹣ABQ体积之比是．【分析】由题意可得GH∥EF，且GH：EF=2：3，设出三棱锥P﹣ABQ体积为V，=，，=，作差求出多面体ADGE 可得V P﹣DCQ﹣BCHF的体积，则答案可求．【解答】解：∵D，C，E，F分别是AQ，BQ，AP，BP的中点，∴EF∥AB，DC∥AB，则EF∥DC，又EF⊄平面PCD，DC⊂平面PCD，∴EF∥平面PCD，又EF⊂平面EFQ，平面EFQ∩平面PCD=GH，∴EF∥GH，=，，设三棱锥P﹣ABQ体积为V，则V P﹣DCQ=．∴=．∴多面体ADGE﹣BCHF的体积与三棱锥P﹣ABQ体积之比是．故答案为：．三、解答题：（本大题共6小题，共70分.解答应写出文字说明、证明过程或演算步骤，并写在答题卷相应位置.）17．（10.00分）如图，在平行四边形OABC中，点C（1，3）．（1）求OC所在直线的斜率；（2）过点C作CD⊥AB于点D，求CD所在直线的方程．【分析】（1）根据原点坐标和已知的C点坐标，利用直线的斜率k=，求出直线OC的斜率即可；（2）根据平行四边形的两条对边平行得到AB平行于OC，又CD垂直与AB，所以CD垂直与OC，由（1）求出的直线OC的斜率，根据两直线垂直时斜率乘积为﹣1，求出CD所在直线的斜率，然后根据求出的斜率和点C的坐标写出直线CD的方程即可．【解答】解：（1）∵点O（0，0），点C（1，3），∴OC所在直线的斜率为．（2）在平行四边形OABC中，AB∥OC，∵CD⊥AB，∴CD⊥OC．∴CD所在直线的斜率为．∴CD所在直线方程为，即x+3y﹣10=0．18．（12.00分）如图，正方形ABCD所在平面与三角形CDE所在平面相交于CD，AE⊥平面CDE，且AE=1，AB=2．（Ⅰ）求证：AB⊥平面ADE；（Ⅱ）求凸多面体ABCDE的体积．【分析】（Ⅰ）推导出AE⊥CD，CD⊥AD，从而CD⊥平面ADE，再由AB∥CD，能证明AB⊥平面ADE．（Ⅱ）凸多面体ABCDE的体积V=V B+V B﹣ADE，由此能求出结果．﹣CDE【解答】证明：（Ⅰ）∵AE⊥平面CDE，CD⊂平面CDE，∴AE⊥CD，又在正方形ABCD中，CD⊥AD，AE∩AD=A，∴CD⊥平面ADE，又在正方形ABCD中，AB∥CD，∴AB⊥平面ADE．…（6分）解：（Ⅱ）连接BD，设B到平面CDE的距离为h，∵AB∥CD，CD⊂平面CDE，∴AB∥平面CDE，又AE⊥平面CDE，∴h=AE=1，又=，∴=，又==，+V B﹣ADE=．…（12分）∴凸多面体ABCDE的体积V=V B﹣CDE19．（12.00分）已知函数为奇函数，（1）求a的值；（2）当0≤x≤1时，关于x的方程f（x）+1=t有解，求实数t的取值范围；（3）解关于x的不等式f（x2﹣mx）≥f（2x﹣2m）．【分析】（1）利用f（0）=0，即可求a的值；（2）当0≤x≤1时，关于x的方程f（x）+1=t有解，求出函数的值域，即可求实数t的取值范围；（3）利用函数的单调性，化不等式为具体不等式，分类讨论，即可解关于x的不等式f（x2﹣mx）≥f（2x﹣2m）．【解答】解：（1）∵x∈R，∴f（0）=0，∴a=﹣1…．（3分）（2）∵，∵0≤x≤1，∴2≤3x+1≤4…．（5分）∴…．（7分）∴…．（8分）（3）在R上单调递减，…．（9分）f（x2﹣mx）≥f（2x﹣2m）x2﹣mx≤2x﹣2m…．（10分）x2﹣（m+2）x+2m≤0（x﹣2）（x﹣m）≤0…．（11分）①当m＞2时，不等式的解集是{x|2≤x≤m}②当m=2时，不等式的解集是{x|x=2}③当m＜2时，不等式的解集是{x|m≤x≤2}…．（14分）20．（12.00分）某家庭进行理财投资，根据长期收益率市场调查和预测，投资债券等稳键型产品A的收益f（x）与投资金额x的关系是f（x）=k1x，（f（x）的部分图象如图1）；投资股票等风险型产品B的收益g（x）与投资金额x的关系是，（g（x）的部分图象如图2）；（收益与投资金额单位：万元）．（1）根据图1、图2分别求出f（x）、g（x）的解析式；（2）该家庭现有10万元资金，并全部投资债券等稳键型产品A及股票等风险型产品B两种产品，问：怎样分配这10万元投资，才能使投资获得最大收益，其最大收益为多少万元？【分析】（1）设投资为x万元，由题意，知f（1.8）=0.45，g（4）=2.5，由此能求出A、B两种产品的收益表示为投资的函数关系式．（2）设对股票等风险型产品B投资x万元，则对债券等稳键型产品A投资（10﹣x）万元，记家庭进行理财投资获取的收益为y万元，则y=，x ≥0．利用换元法能求出怎样分配这10万元投资，才能使投资获得最大收益，并能求出其最大收益为多少万元．【解答】解：（1）设投资为x万元，由题意，知f（1.8）=0.45，g（4）=2.5；解得k1=，k2=，∴f（x）=x，x≥0．g（x）=，x≥0；（2）设对股票等风险型产品B投资x万元，则对债券等稳键型产品A投资（10﹣x）万元，记家庭进行理财投资获取的收益为y万元，则y=，x≥0．设=t，则x=t2，0≤t≤∴y=﹣，当t=，也即x=时，y取最大值．答：对股票等风险型产品B投资万元，对债券等稳键型产品A投资万元时，可获最大收益万元．21．（12.00分）如图，直三棱柱ABC﹣A1B1C1中，AC⊥BC，AC=BC=CC1=2，M，N 分别为AC，B1C1的中点．（Ⅰ）求线段MN的长；（Ⅱ）求证：MN∥平面ABB1A1；（Ⅲ）线段CC1上是否存在点Q，使A1B⊥平面MNQ？说明理由．【分析】（Ⅰ）连接CN，易证AC⊥平面BCC1B1．由勾股定理可得CN的值，进而可得MN的长；（Ⅱ）取AB中点D，连接DM，DB1，可得四边形MDB1N为平行四边形，可得MN∥DB1，由线面平行的判定定理可得MN∥平面ABB1A1；（Ⅲ）当Q为CC1中点时，有A1B⊥平面MNQ．连接BC1，易证QN⊥BC1．可得A1B⊥QN，A1B⊥MQ，由线面垂直的判定可得．【解答】解：（Ⅰ）连接CN，因为ABC﹣A1B1C1是直三棱柱，所以CC1⊥平面ABC，所以AC⊥CC1，…（2分）因为AC⊥BC，所以AC⊥平面BCC1B1．…（3分）因为MC=1，CN==，所以MN=…（4分）（Ⅱ）证明：取AB中点D，连接DM，DB1…（5分）在△ABC中，因为M为AC中点，所以DM∥BC，DM=BC．在矩形B 1BCC1中，因为N为B1C1中点，所以B1N∥BC，B1N=BC．所以DM∥B1N，DM=B1N．所以四边形MDB1N为平行四边形，所以MN∥DB1．…（7分）因为MN⊄平面ABB1A1，DB1⊂平面ABB1A1…（8分）所以MN∥平面ABB1A1．…（9分）（Ⅲ）解：线段CC1上存在点Q，且Q为CC1中点时，有A1B⊥平面MNQ．…（11分）证明如下：连接BC1，在正方形BB1C1C中易证QN⊥BC1．又A1C1⊥平面BB1C1C，所以A1C1⊥QN，从而NQ⊥平面A1BC1．…（12分）所以A1B⊥QN．…（13分）同理可得A1B⊥MQ，所以A1B⊥平面MNQ．故线段CC1上存在点Q，使得A1B⊥平面MNQ．…（14分）22．（12.00分）已知函数f（x）=ax2+bx+c（a，b，c∈R）．（1）若a＜0，b＞0，c=0，且f（x）在[0，2]上的最大值为，最小值为﹣2，试求a，b的值；（2）若c=1，0＜a＜1，且||≤2对任意x∈[1，2]恒成立，求b的取值范围．（用a来表示）【分析】（1）讨论对称轴与区间[0，2]的关系，判断f（x）的单调性，列出方程组解出a，b；（2）令g（x）=，讨论极值点与区间[1，2]的关系判断g（x）的单调性，列出不等式组解出b．【解答】（1）抛物线的对称轴为，①当时，即b＞﹣4a时，当时，，f（x）min=f（2）=4a+2b+c=﹣2，∴，∴a=﹣2，b=3．②当时，即b≥﹣4a时，f（x）在[0，2]上为增函数，f（x）min=f（0）=0与f（x）min=﹣2矛盾，无解，综合得：a=﹣2，b=3．（2）对任意x∈[1，2]恒成立，即对任意x∈[1，2]恒成立，即对任意x∈[1，2]恒成立，令，则，∵0＜a＜1，∴，（ⅰ）若，即时，g（x）在[1，2]单调递减，此时，即，得，此时，∴∴．（ⅱ）若，即时，g（x）在单调递减，在单调递增，此时，，只要，当时，，当时，，．综上得：①时，；②时，；③时，．。