2019-2020学年邯郸市第一中学高三3月复习研究性考试

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2019-2020学年邯郸市第一中学高三英语三模试卷及参考答案

2019-2020学年邯郸市第一中学高三英语三模试卷及参考答案

2019-2020学年邯郸市第一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AObesity (肥胖症) is becoming a problem in our busy society, and almost one in three American adults is now considered to be obese. Children obesity is alsoat an all-time high.Obesity means being very overweight. If you are obese, you have too much bodyfat. If you eat more food than your body can use, this will make you put on weight. Food that your body does not need will be stored as fat by your body.The following are the major factors that increase the risk of obesity.What you eat plays a major role in weight gain. Eating a lot of fast food such as hamburgers, sweet drinks, ice creams and other sweet food can increase the risk of becoming obese.If you do not do enough exercise, you will put on weight as the food you eat is not being used to make energy for physical activities.The chances of you being obese are greater if your parents are obese.There are many psychological factors that cause people to eat too much. People who are worried, unhappy or bored will often eat to make themselves feel better. This is known as comfort eating.Age is another factor, as you tend (趋于) to be less active when you get older. When you get older, you need to eat less, and if you do not eat less, you will put on weight. Obesity can cause many health problems such as heart problems, high blood pressure and many other serious medical conditions.1. The underlined sentence in paragraph 1 means that ____.A. obesity does not do harm to health.B. there are more obese children than before.C. all the American children are obese.D. there are less obese children in the USA.2. According to the passage, there are ____ major factors that increase the risk of obesity.A. threeB. fourC. fiveD. six3. What will the writer most probably talk about after the last paragraph?A. How to avoid obesity.B. How to live in the busy USA.C. What illnesses are caused by obesity.D. How doctors treat heart problems.BAs we all know, there are plenty of different parks to visit in theUK. All theme parks inBritainhave cafes, restaurants, picnic areas and gift shops, so you'll still have plenty to see and do when you and the kids have been on enough rides. There are usually smaller “funfair“ rides and games as well, so younger children won't get bored. Several theme parks also have other attractions next to them, e. g. water parks often open all year round, unlike the theme parks.Whenever you are inBritain, there's likely to be a theme park within one or two hours,drive, bus ride or train journey. Several theme parks even have accommodation(膳宿)so you can stay for a day or two if you want to make a trip into a short holiday.Prices forUKtheme parks vary considerably; some have an entrance price which allows you to go on all the rides, while in others you have to pay for every ride individually. It can also make a difference whether you go during peak time or not. For example, tickets always cost more during school holidays and weekends than they do during the weekdays.Theme parks always get very busy during the summer months, so if you don't like crowds ifs usually a good idea to go earlier or later in the year!If you're thinking of visiting aUKtheme park, it's worth having a look for special offers on tickets. Products such as chocolate bars and cereals sometimes have " buy one get one free" offers on theme park tickets, so keep a look out in shops and supermarkets.4. This passage mainly talks about all the following EXCEPT.______.A. things to doB. prices for theme parksC. rules to obeyD. special offers5. If you go to the theme park during the weekdays, you'll probably.______.A. have to spend moreB. save some moneyC. win a big prizeD. get something free6. According to the passage, what should you do if you are tired of crowds in the theme park?A. Avoid the busiest months.B. Go earlier or later in the daytime.C. Choose one with few visitors.D. Go there when no one is in it.7. The best title for the text would be ______.A. What to Do in the Theme ParkB. Theme Parks in theUKC. Visiting the Theme ParkD. Introduction to Famous Theme ParksCOnce small farmers in Masii, a remote village in Kenya, have picked their crops, all they can do is wait until a buyer trucks through. The system works fairly well for beans and corn, but mangoes-the area’s other main crop-spoil (腐烂) more quickly. If the trader is late, they rot.However, a simple coating could change that. A company, SmartTech, has created a product that doubles the shelf life of fresh produce, enabling farmers to access far-off, larger markets. More time forfresh produce on grocers’ shelves also means less food waste-a $2.6 trillion problem, according to the United Nations’ Food and Agriculture Organization (FAO).James Rogers, CEO of SmartTech, wanted to solve the problem for food much in the same way that oxide barriers preventing rust (锈) have achieved for steel. Fortunately, researchers have found when plants made the jump from water to land, they developed cutin(蜡质), a barrier which is made of fatty acids that link together to form a seal around the plant, helping keep water in.The cutin was such a grand strategy that today you’ll still find it across the plant kingdom. SmartTech discovered through researches that an orange can last longer than a strawberry not so much because of the thickness of its skin, but because of the difference in the arrangement of those cutin molecules (分子)on the surface. After extensive trials, Rogers and his team developed a natural and tasteless protective coating from plant material-stems, leaves and skins. The product extends the sweet spot between ripening and rot. And best of all, the treated produce doesn’t require refrigeration.“SmartTech has huge potential to turn poor farmers in Africa into commercial farmers,” says Rogers. “That means more money in pockets, and more food in stomachs.” But whether the company can cost-effectively reach small farmers in far-off areas still remains a challenge.8. The author mentions the small farmers in Kenya to ________.A. stress their need for preserving produceB. show their challenge in harvesting cropsC. express their wish to reach larger marketsD. evaluate their loss caused by slow transport9. What can we learn about SmartTech’s product?A. It is financially supported by FAO.B. It is intended to replace refrigeration.C. It is designed to thicken produce’s skin.D. It is based on plants’own defence system.10. What will James Rogers probably focus on next?A. How to expand farms.B. How to earn more money.C. How to produce more tasty food.D. How to profit farmers in remote area.11. The main purpose of the passage is to ________.A. promote a productB. present a technologyC. advertise SmartTechD. introduce James RogersDIt’s 13:30 and 28-year-old Marten Pella 's smart phone starts pinging, a signal that it’s time for us to stop working around his living room table and instead start our workout routine together. A cartoon character wearing bright red shorts on video begins instructing us to do star-jumps and sit-ups around his apartment.Pella, a research assistant at Stockholm University, is part of the Hoffice movement, which invites workers-freelancers(自由职业者)or full-time employees who can do their jobs remotely—to work at each other’s homes to increase productivity and enjoy an active social life.Those attending Hoffice events advertised on Facebook are typically asked to work silently in 45-minute blocks, before taking short breaks together to exercise, or simply chatting over a coffee. In addition, each participant shares daily objectives with the rest of the group upon arrival, and is invited to report back on whether or not they have achieved them at the end of the day.“Often when I am alone, I can work focused for a couple of hours but then I’m easily distracted(分心).The help of others makes me so much more disciplined.” says Pella, who attends Hoffice events as both a guest and a host. Lunches mean networking and connecting with new contacts. “People are coming from really different areas and have different professions so there can be really interesting discussions,” he says.The Hoffice movement has grown quickly since it was founded in 2014 by Swedish psychologist Christofer Franzen, now 37. He had been giving lectures on the benefits of collective(集体的)intelligence, but realised he was spending most of his own time working alone at his kitchen table. “I wanted to test more structured homeco-working with friends in similar situations,” he says.Franzen says that holding events in houses and apartments creates a unique atmosphere, because there’s a sense of community and desire to contribute. He’s looking for ways to expand the social value of Hoffice, by matching up members with relevant skills to share and even encouraging jobseekers to join its gatherings.12. Where is Pella when his smart phone starts pinging?A. In his own home.B. In his office.C. In another person’s home.D. At Stockholm University.13. What do people attending Hoffice events do first when they meet?A. Watch an exercise video.B. Work silently for 45 minutes.C. Tell each other their daily plans.D. Report what they have achieved.14. What does Franzen really mean by saying “friends in similar situations”?A. They usually work alone.B. They often give lectures.C. They study collective intelligence.D. They have to work at a kitchen table.15. What is the best title for the text?A. Sharing Comfortable WorkplacesB. A New Way to Make New FriendsC. Benefits of Collective IntelligenceD. Working from Others’ Homes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。

2019-2020学年邯郸县第一中学高三英语三模试题及答案

2019-2020学年邯郸县第一中学高三英语三模试题及答案

2019-2020学年邯郸县第一中学高三英语三模试题及答案第一部分阅读(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项AYou have to praise the smoothness(顺畅)of ants on the move. No matter how many of them are going toward a place, there's never a hold-up. A new research paper shows how ants keep traffic flowing by changing their behavior to meet changing conditions.For their experiments, researchers from the University of Toulouse focused on Argentine ants, animals that often move from colony(群落)to colony depending on where the food is. Making use of Argentine ants' talent for fast travel, the researchers built bridges connecting their colonies. The bridges were different in width from a fifth to three-quarters of an inch. The colonies, too, were of different sizes, ranging from 400 to more than 25,000 ants.Then the researchers sat back andmonitoredthe traffic. To their surprise, even when those narrower bridges were full of ants, there were no "traffic accidents". "When the number of ants on the bridge increased, ants seemed to be able to understand the situation and adjusted(调整)their speed accordingly to avoid making the traffic flow stop. "the authors note. "Moreover, ants avoided entering a busy road and made sure that the bridge was never too packed to cross.”The lesson for humans? The traffic problem may lie in our inability to adjust our driving habits for the good of the whole. Driving is fun when there are few cars on the road. Then the traffic moves very slowly. And yet, some impatient driver still acts like he's alone on the road.The research suggests that projects, like the ever-widening of highways, may never free us from traffic jams. As long as we drive along with our own habits, no matter how many other people are on the road, we'll always end up in a traffic jam. Indeed, less space may actually be a good thing. It leaves less room for individual choice and forces us to take a page from the driving book of ants.1. What is Paragraph 2 mainly about?A. The results of the experiments.B. The purpose of the experimentsC. The preparation of the experiments.D. The requirements of the experiments2. What does the underlined word "monitor" in paragraph 3 probably mean?A. watch and check.B. seek and improveC. design and planD. discuss and practise3. What is the best title for the text?A. Is widening highways a solution?B. Why don't ants need traffic lights?C. Can we learn safe driving from ants?D. What can ants teach us about traffic jams?BIn the old days, when you had to drive to a movie theater to get some entertainment, it was easy to see how your actions could have an impact(影响)on the environment. After all, you were jumping into your car, driving across town, coughing out emissions(产生排放)and using gas all the way. But now that we're used to staying at home and streaming movies, we might get a littleproud. After all, we're just picking up our phones and maybe turning on the TV. You're welcome. Mother Nature.Not so fast, says a recent report from the French-based Shift Project. According to "Climate Crisis: The Unsustainable Use of Online Video", digital technologies are responsible for 4% of greenhouse gas emissions, and that energy use is increasing by 9% a year. Watching a half-hour show would cause 1. 6 kilograms of carbon dioxide emissions. That's like driving 6. 28 kilometers. And in the European Union, the Eureca project found that data centers(where videos are stored)there used 25% more energy in 2017 compared to just three years earlier, reports the BBC.Streaming is only expected to increase as webecome more enamored ofour digital devices(设备)and the possibility of enjoying entertainment where and when we want it increases. Online video use is expected to increase by four times from 2017 to 2022 and account for 80% of all Internet traffic by 2022. By then, about 60% of the world's population will be online.You're probably not going to give up your streaming services, but there're things you can do to help lessen the impact of your online use, experts say. For example, according to Lutz Stobbe, a researcher from the Fraunhofer Institute in Berlin, we have no need to upload 25 pictures of the same thing to the cloud because it consumes energy every time. If instead you delete a few things here and there, you can save energy. Moreover, it's also a good idea to stream over Wi-Fi, watch on the smallest screen you can, and turn off your Wi-Fi in your home if you're not using your devices.4. What topic is the first paragraph intended to lead in?A. The environmental effects of driving private cars.B. The improvements on environmental awareness.C. The change in the way people seek entertainment.D The environmental impacts of screaming services.5. What does the underlined phrase become more enamored of" in paragraph 3 probably mean?A. Get more skeptical of.B. Become more aware of.C. Feel much crazier about.D. Get more worried about.6. What can we infer about the use of streaming services?A. It is being reduced to protect the planet.B. Its environmental effects are worsening.C. It is easily available to almost everyone.D. Its side effects have drawn global attention.7. Which of the following is the most environmentally-friendly?A. Watching downloaded movies on a mobile phone.B. Downloading music on a personal computer.C. Uploading a lot of images of the same thing.D. Playing online games over mobile networks.CFor as long as I can remember, my body and I have shared a relationship of discontent. Growing up, I was skinnier than the other kids and at five I was told I wasn't attractive and that I must put on some weight. But no matter how much I ate, I stayed thin for years until adolescence. Then I started putting on weight almost immediately. I remember feeling happy as I began to fill out. However, my joy didn't last long.I was thirteen when I was first called fat. Friends and neighbours would make jokes on my big size. As I entered my late teens, I had completely lost confidence in my body and, subsequently, in myself. Having failed to live up to conventional beauty standards, I was convinced that if I wanted to be loved, I needed to offer more, doing anything to please everyone around.I entered adulthood thinking I wasn't “enough”—an idea that was seeded not only by the fact that “skinny” is celebrated, but also by the language associated with accounts of losing weight—self­improvement, discipline—all virtues. Being fat quickly categorizes you as lazy and undisciplined. Consumed by thoughts of the way my body looked, I didn't notice the other ways my body needed attention. I failed to realize, for example, that my period was much heavier and more painful than ever before. Actually I developed a rare disease and later I had two surgeries.I was always made to feel that my weight was the root of a lot of problems in my life; I have learnt this is not true. After a lot of self­reflection and some professional help, I realized I never learnt to like myself. While two decades of self­hatred cannot be undone overnight, I have taken first steps to acceptance.I am now much lighter than before, in body and mind. There are days I find voices on social media saying I am too fat to be loved or to be worthy, but I am learning not to focus on that thought for long. As long as I like myself, just the way I am, opinions at the end of the day are just water off a duck's back.8. What can we learn about the author from the first two paragraphs?A. She could change her weight at will.B. She had different beauty standards from others.C. She tried to love others to build her confidence.D. She was greatly influenced by others' opinions.9. Why did the author think she wasn't “enough”?A. She was poorly disciplined.B. She failed to celebrate “skinny”.C. She was labelled as lazy for her weight.D. She put on more weight after entering adulthood.10. What caused the author to make a change?A. Her lighter body.B. A troublesome illness.C. Popular beauty standards.D. Others' critical comments.11. What is the best title for the text?A. Beauty matters.B. Opinions vary.C. Worth your weight.D. Beyond your limits.DI was at my parent’s dinner table. Before me was a worn journal of thin and discolor1 ed pages. It was my grandfather’s journal and now belonged to my father. My grandfather had passed away in the months leading up to my birth. I never got to visit the places he had frequented and the people who had been a part of his life’s journey.I was now about to enter his world, through the words he had left behind. Within minutes, I wascaptivatedby the power of the written words. In the magical script (笔迹) before me, I was transported to another age when food was an everyday art, planned, prepared and enjoyed in the company of others, and a time when people hadthe heart to pause their own lives to embrace (拥抱) each other’s struggles. All this was conveyed to me in the beauty of the words that flowed together to connect with the writer’s mind and understand the world they lived in.That kind of writing seems to be lost on us today. We have gotten used to writing in bite-sized pieces for a public looking for entertainment, and hungry for information. No wonder, there are nearly 200 million bloggers on the Internet and a new blog is created somewhere in the world every half a second. Instead of adding to our collective wisdom, most of these writings reflectthe superficiality (肤浅) and impatience of our day and age.This not only robs us of the skill of writing impressive essays, it also prevents us from exploring what is indeed important. Writing humbles (使谦卑) us in a way that is vital for our character growth, by reminding us about the limits of the self and our appropriate place in the vast flow of life. Writing frees us by helping us explore the unknown so that we really open up to magic of the world around us. I saw all of this in the writing of my grandfather. And I’ve seen it again and again in the writings of the greatest thinkers of humanity. Their writing reflect deep thought on issues of human importance.12. The underlined word “captivated” in the second paragraph can be replaced by “________”.A. puzzledB. frightenedC. attractedD. defeated13. In the author’s grandfather’s age, people ________.A. lived a hard lifeB. cared about each otherC. were fond of writingD. treated food as an art14. The author begins the text with her grandfather’s journal in order to ________.A. show her respect to her grandfatherB. present the importance of good writingC. express her interest in reading as well as writingD. raise the problems with today’s writing15. In the last paragraph, the author is trying to _________.A. discuss what good writing is likeB. express her strong desire to learn writing skillsC. stress the effects of her grandfather’s journal on herD. show her admiration for her grandfather’s writing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。

2019-2020学年河北省邯郸市第一中学高三英语三模试题及参考答案

2019-2020学年河北省邯郸市第一中学高三英语三模试题及参考答案

2019-2020学年河北省邯郸市第一中学高三英语三模试题及参考答案第一部分阅读(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项AIn September, something terrible happened on the west coast ofTasmania,Australia. As many as 380 pilot whales became stranded(搁浅) in shallow water there and later died. This might have beenAustralia’s largest stranding event on record, the BBC reported.But this large amount of whale stranding is not uncommon. For centuries, it has happened all over the world and has puzzled scientists. Scientists say the cause is often unknown. But they have offered many different explanations.Some say the whales chase small fish for food and end up in shallow water because they are not paying attention to where they are going.Others think the stranding has something to do with Earth’s geomagnetic field (地磁场). They say that a geomagnetic compass in whales’ brains controls their position. Unusual changes in Earth’s magnetic field can affect the whales’ compasses and send them in the wrong direction.Another explanation suggests that stranding is caused by the close relationships that whales have. Pilot whales travel in large groups. One lead whale might mistakenly lead the whole group to shallow water. “And if one gets into trouble, the others will not leave,” said Sheryl Gibney, a leading biologist fromNew Zealand. “Some will come in and try to help, they get trapped on the beach, then more will come.”The whales are trapped by mistake or out of sympathy(同情). Once they get stranded, they will likely die. According to the National Oceanic and Atmospheric Administration of theUS, less than 10 percent of all stranded whales survive.1. What do we know about the stranding inAustralia?A. It happened on theeast coast ofAustralia.B. It caused the death of over 300 pilot whales.C. It is commonly seen in September each year.D. It was the largest stranding event in the world.2. According to Gibney, the pilot whales are the animals that________.A. are kind to each otherB. are easy to lose directionC. are too huge to float in the seaD.are silly to follow the leading whale3. What is the story mainly about?A. How human activity has affected whales.B. What might cause whale strandings.C. How whales find their direction while traveling.D. What scientists are doing to save stranded whales.BDragon boating is a team sport that has its root in ancient China. The boats are decorated with a dragon head and tail. In recent years cancer survivor groups have got involved in the sport to help make friends and help rebuild their lives.On a recent Saturday morning, a group of 20 women were on a boat in the Anacostia River in Washington DC. They moved their paddles(船桨)in rhythm to the call of a coach. The women belong to the dragon boat team GoPink! DC, which trains weekly. It also races against other breast cancer survivor teams in dragon boat festivals. As a result, GoPink! DC won medals in this Washington dragon boat festival.Lydia Collins joined five years ago after finding out she had breast cancer. “I was diagnosed with breast cancer.I was demoralized because of my illness - I lost all interest in life and wouldn't even get out of bed to eat. But now I love the team spirit. I just love everything about it. It is like a floating support group on the water.”The paddles are breast cancer survivors and their supporters. Annette Rothemel helped establish(建立)the group in 2006. She is a researcher with the National Institutes of Health as well as a breast cancer survivor. “It is sort of an easy entry sport because on the same boat people at different levels can be doing the same sport.” But Ms Rothemel saysdragon boating can be physically demanding, especially for someone who is sick and getting treatment for cancer.“It’s hard but I think you have to challenge yourself in life. This is something I look forward to. I get to be out here with my sisters and supporters that understand what I’m going through and help motivate me. So it makes me stronger and it makes me feel better,” another cancer survivor Rhonda Hartzel said.Annette Rothemel says the cancer survivors feel a sense of sisterhood and share good times when they paddle together. She says both feelings are treasured by the team.4. What do the underline wordsdemoralizedIn para.3 probably mean?A. depressedB. anxiousC. astonishedD. awkward5. What can we know about Lydia Collims from the text?A. she helps establish Go Pink !DCB. she tries to find a cure for the cancerC. she benefits from the dragon boat raceD. she gives up hope because of her illness6. How can the dragon boat race help the cancer survivorsA. forget their tough experiencesB. recover physically and mentallyC. get rid of the pains of their cancerD. enjoy their rest life without sufferings7. What does the text tell us about Annette Rothemel?A. she is an expert in studying the cause of the cancerB. she helps the cancer survivors in financial difficultiesC. she believes there is a healthful result from the dragon boat raceD. she thinks it unwise for the patient to join in the dragon boat raceCWhen my friend suggested going to the op shop (二手商店),instantly I thought “I hope no one I know sees me”. It was the same when my cousin commented on my new furniture and Japanese, fine-bone-china bowls and asked where I got them. They were from the local op shop but instead I said “from the antique shop”.Many people in my Greek-Cypriot community would look down on me if I said I shopped at the op shop. They may pity me, consider me poor, a failure. Immigrants sacrificed their families and homes for a better life. Buying a house and having enough money to live comfortably, to educate your children and see them also live comfortably, are a big part of the immigrant dream, But has this dream made us materialistic at the cost of our own planet?Our love for purchasing the latest trendy clothes or furniture, then donating them when we are tired of them has become normal. I was once like this. But after watching the documentaryThe True CostI learned donated clothes that don’t get sold are sent to developing nations, many of them ending up in landfills (垃圾填埋地). In addition, your new dress requires electricity and materials to make. But if you buy a second-hand dress, that’s one less dress in a landfill and one less new dress to be made.A friend introduced me to op shopping only a few years ago. My firstitem was a dress she gifted me. It waslovely and I loved it. Nobody could tell it was second-hand. This opened me up to purchasing more second-hand high quality branded clothes. Once I visited a friend and was impressed by how she decorated her apartment. “It’s all second-hand,” she said. I couldn’t believe it. The truth is a lot of things sold at the op shop are in new or almost new condition. That’s when I made the decision to only buy second-hand things.Selling second-hand things isn’t anything new butwhat the planet needs is more buyers. There is so much excess (过量) production in the world. So stop feeling ashamed, and let’s get shopping.8. What kind of feeling is expressed in Paragraph 1?A. Pride.B. Embarrassment.C. Delight.D. Sympathy.9. Whatare many people in the author’s community like?A. They are probably materialistic.B. They care about the environment.C. They think highly of op shopping.D. They look down upon immigrants.10. What was the author encouraged to do after visiting her friend’s apartment?A. Watch the documentaryThe True Cost.B. Donate more to local charities.C. Avoid shopping too much.D. Stop buying new things.11. What’s the purpose of the text?A. To entertain.B. To advertise.C. To persuade.D. To describe.DTyphoons can be deadly — in 2013, Typhoon Haiyan, the strongest ever recorded, was responsible for 6,340 deaths—and cost billions in damages. Current forecast modelscan only predict these storms 10 days in advance, at most, and they cannot precisely predict how intense the storms will become.An international team of researchers has developed a model that analyzes nearly a quarter of Earth’s surface and atmosphere in order to better predict the conditions that birth typoons.“The target problem of this study is how to foretell the birth of typhoons,” said paper author Mingkui Li, associate professor in the Key Laboratory of Physical Oceanography in the Ocean University of China and the Pilot National Laboratory for Marine Science and Technology (QNLM). “We specifically address three aspects: the beginning time, inner pressure and maximum wind speed.”The researchers also accounted for the influence of one variable(变量) on another, such as wind speed on sea surface temperature. This influence is well understood and accounted for in climate predictions and in weather forecasts, butithas not been fully applied in understanding how long-term climate affects day-to-day weather, according to Li. “We aimed to provide insights on the time scale that can be used to forecast typhoons in advance.”From their study, the researchers determined that a model with the ability to better understand the relationship between warm sea surface temperatures and weak wind movement— conditions that favor typhoon formation—could improve typhoon predictability.“Our goal is to develop a 10 to 30-day prediction system that will lead to seamless(无缝的) weather-climate predictions.” Shaoqing Zhang, paper author and professor in the Key Laboratory of Physical Oceanography, said.12. What is the problem with the present forecast system?A. It cannot foretell storms in advance.B. It is ineffective in accuracy and timeliness.C. It costs too much and causes great damages.D. It can hardly predict the intensity of typhoons.13. What does the underlined word “it” in paragraph 4 refer to?A. The variable.B. The climateC. The temperature.D. The influence.14. What is the purpose of the study?A. To advance the prediction system.B. To figure out the three main aspects.C. To know how climate affects daily weather.D. To understand the influence of the variables.15. Where is this text most likely from?A. Awork diary.B. A travel guidebook.C. A science magazine.D. A fantasy fiction.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届河北省邯郸市第一中学高三英语三模试题及答案

2020届河北省邯郸市第一中学高三英语三模试题及答案

2020届河北省邯郸市第一中学高三英语三模试题及答案第一部分阅读(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项APersonal Time Off(PTO)is something my wife and I created after having kids. We learned that,over time,a full life can leave little time for personal rest and for reflection,hanging out with friends,or just being“off. ”So,after a number of years,we make a change. If I can persuade you to take your own PTO,then these might help.■Schedule itFirst of all,one of our favorite family sayings is“schedule it. ”Sounds easy enough,but life gets complicated managing full-time work and full-time family. Put yourPTO time on the calendar and you make it a real thing.■Be flexible and strictIf you can schedule PTO at the same time each week,then all the better. Because our calendar can get rather full,flexibility in scheduling becomes a necessity. But being strict in actually taking the time each week is more important. Skipping it once makes it easier to skip again.■Take enough timeMy typical PTO lasts a couple of hours or longer. Sometimes it might be half the day depending on what I’m doing. The goal is to spend enough time away to1et your shoulders drop.■Do what you want to doRemember,PTO time is about personal time to do what you want to do,not what you have to do. PTO time is about relaxation. Grab a friend and get a beer. Work can wait until tomorrow.1.What can be the first step to take the PTO?A.Persuade the family.B.Have a personal rest.C.Ask friends for advice.D.Make a time plan.2.What does the underlined part“let your shoulders drop”probably mean?A.Get you more focused.B.Have you feel relaxed.C.Shake your shoulders often.D.Make you feel more stressed.3.What does the text mainly talk about?A.Tips on how to take your time offB.Skills to manage work and familyC.Advice on how to free yourselfD.Ways of scheduling your workBIn 2002, young Elon Musk tried unsuccessfully to buy Russian rockets to help him send mice to Mars and back. Afterwards, the youngmillionaire decided to build his own rockets.Musk went to Southern California and started hiring people to help bring his dream to life. In a very short time, and despite some failures, his company SpaceX launched Falcon 1, the first successful privately-built liquid fuel rocket, into Earth's orbit in 2008.As the first Falcon rocket began testing, development was already underway for the Falcon 9. This much larger rocket, which uses nine engines to lift heavy payloads(有效载荷)into orbit, is engineered to return to Earth, ready to be reused for another flight.For Musk, space is the final destination. To help people get there, his company Neuralink is developing devices that will link people's brains with computers. A similar device has been developed at the University of Utah. It consists of a chip(芯片)with 256 threads(线程)that is placed between a person's skin and brain. The threads attach directly to brain tissue(脑组织).Patients who have the device are able to use only their minds to communicate with one another through computers.Neuralink's chips will have about 1,000 threads. A robot developed by the company will place up to ten chips under a person's skin. The chips will communicate without wires but with a tiny device that will be worn behind the person's ear. That device, in turn, will communicate with computers. The primary market for the technology will be for people that, because of injuries or birth defects, cannot control their hands and arms. With Neuralink^ product, they'll be able to mentally command a computer to type messages for them or carry out other tasks.4. According to this article, what was the first Falcon 1 able to do?A. Launch big satellites.B. Reach distant moons.C. Move around our planet.D. Study the universe.5. What does the article explain about Neuralink's chips?A. How they'll be set up.B. What safety features they'll have.C. How much money they'll earn.D. Where they'll be produced.6. According to this article, who is Neuralink going to market its product to first?A. Those who own great wealth.B. Those who are physically disabled.C. Those who travel internationally.D. Those who do research on plants.7. In which publication is this article most likely to appear?A. The Journal of Environmental Studies.B. Advances in Business and Technology.C. Digest of Fashion and Entertainment News,D. Consumer's Guide to Outdoor Recreation.CAccording to a survey, the wasteof food on the dining table occupies 10% of the total grain output.Last week, Meituan, a giant online food ordering platform, co-published a proposal with a number of business organizations, calling on restaurants to stop food waste and help develop new eating habits for customers. Following the proposal, merchants are asked to offer guidance for consumers, including reminding them during the ordering process about the taste of the ingredients, portion sizes and other information about the dishes, to helpthem avoid excessive ordering and food waste.Catering(餐饮)associations in more than 18 provinces have also joined the campaign to remove food waste. The Wuhan Catering Association proposed an “NT" ordering code for restaurants in which a group of 10 diners would only order enough for nine people. More food is only brought to the table if required. On Friday, the China Cuisine Association announced that it had teamed up with Ele. me, the Alibaba Group Holding-owned food delivery platform, to launch a "half-dish plan," encouraging restaurants to provide customers with the option to order smaller portions.Tang Zhisong, a professor at Southwest University Education School, said "Evaluating how much you can eat, how much you should buy and how to deal with the leftover is a way for young people to improve their self-management. It's also a means to teach them sharing food, caring about others, and more importantly, developing a mindset of suitability. "8. What's the purpose of the proposal mentioned in the passage?A. To change customers' attitude toward life.B. To promote a new policy on food delivery.C. To spread the idea of healthy eating.D. To encourage restaurants to reduce food waste.9. What does the underlined word “excessive" in Paragraph 2 prolably mean?A. More than enough.B. Less than required.C. Better than ever.D. Worse than before.10. Paragraph 3 is mainly developed by.A. offering analysesB. presenting a surveyC. giving examplesD. making comparisons11. What do Tang's words suggest?A. Sharing food is caring about others.B. Young people should have self-discipline.C. Reducing food waste has all-round benefits.D Saving food contributes to a sustainable society.DYu Chenrui, 29, is a maker of automata (机关人偶) in Chengdu, Sichuan province. Automata are built to look like humans or animals and give the illusion (错觉) of being able to move on their own, “The art form amazes me, becauseit combines various skills, from storytelling to mechanics, and the pieces are built with a sense of humor,” Yu says. His creations have caught the attention of well-known artists and his fancy pieces of art have attracted collectors worldwide.Interested in handcrafts as a boy, Yu first encountered automata designed by Japanese artist Kazuaki at an exhibition in 2015 when he studied at the Communication University of China inBeijing. “It was like meeting a like-minded friend, ” Yu says, recalling the moment. As an art and design major, he began to learn the craft by himself and, with the support of his tutor, he kept studying and examining automata in school.When he graduated in 2016, Yu landed a job at an advertising agency inBeijing. He stayed on at the company for three years because, at that time, he was not sure that he could make a living out of his hobby. While working as a designer Yu kept exploring and advancing his skills in wood carving and mechanics. Eventually, despite the job’s good salary, it was not enough to make up for not following his true passion. Finally, in 2018, Yu quit his job and returned toChengduto open his automata workshop.To keep himself occupied while running his workshop, he planted blueberries, raspberries and cherries. Hewatered, weeded and added fertilizer (肥料) every day. “Daily routines helped me calm down and inspire my creativity, which resulted in an automaton called To Observe the Autumn,” Yu says.Over time, Yu’s reputation grew and his business flourished (兴旺). Many of Yu’s creations are built with a dash of wisdom, a sprinkle of humor and are inspired by observations of real life. Yu knows that there are many more creative ideas waiting to be expressed. “It feels quite good to be fully devoted to automata creation and I am still searching for myself.”12. What can we learn from the first paragraph?A. Yu is equipped with various skills.B. Yu is a person full of sense of humor.C. Yu is now gaining recognition worldwide.D. Yu is following the latest trend in handcraft.13. Why did Yu quit his job inBeijing?A. He couldn't make a living out of it.B. He wanted to pursue his own dream.C. He missed his family inChengdu.D. He thought he had a lot experience.14. According to Yu, what contributes to his creativity as an automata artist?A. The fruits he grows.B. Success of his business.C. His devotion to the job.D. Observation from daily life.15. Which of the following can best describe Yu’s story?A. There is no end to learning.B. Great hopes make great man.C. Actions speak louder than words.D. Experience is the mother of wisdom.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。

2019-2020学年邯郸市第一中学高三英语三模试题及参考答案

2019-2020学年邯郸市第一中学高三英语三模试题及参考答案

2019-2020学年邯郸市第一中学高三英语三模试题及参考答案第一部分阅读(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项AAmid the coronavirus outbreak, the U. S. Department of Homeland Security recommends having at least a two - week supply of water and food.PotatoesShelf life:2 to 5 weeks if stored in a cool, dry, dark placeYukon Gold, red, and fingerling potatoes will last from two to three weeks. Larger white potatoes can last for three to five weeks. Sweet potatoes have about the same shelf life. Don't store them next to onions, however. The two might go together well in cooking, but raw, each gives off gases and moisture that might cause the other to spoil faster.Tea※Shelf life:6 to 12 months past "sell - by" dateDried tea leaves, whether loose (in a sealed container) or in teabags (in an unopened box) can easily last a year or more if they' re not subjected to damp or humidity. However, the tea does tend to lose flavor over time.Peanuts● Shelf life:1 to 2 monthsPeanuts in their shell, especially when kept cool and dry, are perfectly happy in the cupboard for as long as two months.Canned fruits and vegetables● Shelf life:1 to 2 years past "sell - by” dateCanningis an extremely efficient means of preserving food. Generally speaking, if canned foods aren't subjected to extreme heat, their contents should stay good for two years or more. Be aware, however, of dented cans or those with swollen tops, which may indicate the presence of bacteria inside.1. Which can go bad faster if stored with onions?A. Potatoes.B. Tea.C. Peanuts.D. Canned fruits and vegetables.2. What is special about tea?A. The flavor of tea can always remain the same.B. Tea leaves are better to be preserved in an open jar.C. Tea leaves should be kept away from the state of being wet.D. The maximum length of time that tea can be stored is 6 months.3. What may shorten the "sell - by” date of canned foods ?A. Shapes of cans.B. Categories of foods.C. Decline of the temperature.D. Exposure to high temperature.BFrom skateboarding to Fleetwood Mac, TikTok users got creative in a pandemic (流行病) year with new songs, dances and shows in 60 seconds or less.The social mediavideo app on Wednesday shared its list of top 100 videos, creators and trends in America during 2020. “These videos brought joy and inspiration to millions of Americans in the rough year,” said Kudzi Chikumbu, director of creator community at TikTok.The platform has been widely associated with Generation Z (people born after 1996), millennials (people born in the 1980s or 1990s) and influencers who have started careers based on the shared videos.The Weeknd'sBlinding Lightsand Jason Derulo's Savage Loveinspired TikTok dance challenges that made them among the top songs used on the app.For some TikTok creators, the pandemic itself became inspiration to create a connection with other users. Comedian Caitlin Reilly used the app during quarantine (隔离) to make fun of those annoying coworkers for one of the top liked videos. And singer Curtis Roach made an song for the endless days at home with his song Bored in the House.The second most popular video was an Idaho man named Nathan Apodaca who shot to fame after coolly singing Dreams by Fleetwood Mac, while skateboarding on a highway.But the most liked TikTok video was awarded to Bella Poarch with 45 million followers, who created a simple but interesting video with a few seconds of well-timed head nods and eye rolls.While the app might be designed for youth, Chikumbu said that the growth of TikTok this year has pushed it more into mainstream culture. “You're seeing everyone from the teenager to the college students with their parents and then their grandparents all making videos,” said Chikumbu. “And now TikTok trulytranscendsgenerations, particularly in this year when people had a lot of time to dig in and not only watch, but try.”4. What do we know about The Weeknd?A. He created the famous song Dreams.B. He started a career based on shared videos.C. He is probably a popular singer on TikTok.D. He organized the TikTok dance challenges.5. What did Curtis Roach think of his life during quarantine?A. Meaningful.B. Peaceful.C. Content.D. Uninteresting.6. The most popular TikTok video in 2020 was created by ______.A. Caitlin ReillyB. Curtis RoachC. Nathan ApodacaD. Bella Poarch7. What does the underlined word “transcends” in the last paragraph mean?A. Makes use of.B. Goes beyond.C. Calls on.D. Takes charge of.CIt was New Year time, but I wasn’tlooking forward to it. That winter, my mother and my stepfather moved our family toSouthern California. My brother and I were leaving our ruralAlabamabehind. This would be our first New Year away fromAlabama. My mother took toCalifornialike a swan to a royal lake. My athletic little brother, Paul, was keyed up at a climate that allowed him to go to the beach whenever he wanted.I, however, was a fat child with heavy southern pronunciation. My first day in the new class, I introduced myself in a low voice. The moment I opened my mouth to speak, the whole class burst into laughter, “He talks funny.” It was so frustrating that I went to place a call to Granny Smith after school, who was my biggest support, But I didn’t get through.On Sunday evening, the phone rang. It was Granny. She often took advantage of the discounted long-distance rates on Sundays. She said she’d shipped a New Year package. Sure enough, it arrived. Surprised at the box, large enough to hold a small refrigerator, we eagerly tore it open. The smell of Granny’s house filled the room: a combination of fried meat, sausages, furniture polish and decorations. Her house was tiny and always filled withtackyholiday decorations and homemade food before New Year. But in my childhood eyes, it was precious and fantastic.There were countless tins and containers. We open hem to discover piles of holiday treats. She even includedour traditional candy bats. The box was as bottomless as a magical box. There, beneath all these, was familiar holiday.Every New Year that we spent inCalifornia, the postal service would call and say our package was arrived. Over the years, many treasures arrived in the box. For me, it’s always been the best part of the holiday.8. How did the author’s brother feel when they were moving toCalifornia?A. Indifferent.B. Joyful.C. Appreciative.D. Disappointed.9. Why did the author’s classmates laugh at him?A. He spoke in a low voice.B. He made a humorous talk.C. He looked overweight.D. He had a strong accent.10. What does the underlined word “tacky” probably mean?A. Suitable.B. Expensive.C. Cheap.D. Attractive.11. Which of the following can be the best title of the text?A. Granny’s Care PackageB. An UnforgettableHolidayC. Our Move toCaliforniaD. A Telephone Call from GrannyDIt’s 13:30 and 28-year-old Marten Pella 's smart phone starts pinging, a signal that it’s time for us to stop working around his living room table and instead start our workout routine together. A cartoon character wearing bright red shorts on video begins instructing us to do star-jumps and sit-ups around his apartment.Pella, a research assistant at Stockholm University, is part of the Hoffice movement, which invites workers-freelancers(自由职业者)or full-time employees who can do their jobs remotely—to work at each other’s homes to increase productivity and enjoy an active social life.Those attending Hoffice events advertised on Facebook are typically asked to work silently in 45-minute blocks, before taking short breaks together to exercise, or simply chatting over a coffee. In addition, each participant shares daily objectives with the rest of the group upon arrival, and is invited to report back on whether or not they have achieved them at the end of the day.“Often when I am alone, I can work focused for a couple of hours but then I’m easily distracted(分心).The help of others makes me so much more disciplined.” says Pella, who attends Hoffice events as both a guest and a host. Lunches mean networking and connecting with new contacts. “People are coming from really different areas and have different professions so there can be really interesting discussions,” he says.The Hoffice movement has grown quickly since it was founded in 2014 by Swedish psychologist ChristoferFranzen, now 37. He had been giving lectures on the benefits of collective(集体的)intelligence, but realised he was spending most of his own time working alone at his kitchen table. “I wanted to test more structured home co-working with friends in similar situations,” he says.Franzen says that holding events in houses and apartments creates a unique atmosphere, because there’s a sense of community and desire to contribute. He’s looking for ways to expand the social value of Hoffice, by matching up members with relevant skills to share and even encouraging jobseekers to join its gatherings.12. Where is Pella when his smart phone starts pinging?A. In his own home.B. In his office.C. In another person’s home.D. At Stockholm University.13. What do people attending Hoffice events do first when they meet?A. Watch an exercise video.B. Work silently for 45 minutes.C. Tell each other their daily plans.D. Report what they have achieved.14. What does Franzen really mean by saying “friends in similar situations”?A. They usually work alone.B. They often give lectures.C. They study collective intelligence.D. They have to work at a kitchen table.15. What is the best title for the text?A. Sharing Comfortable WorkplacesB. A New Way to Make New FriendsC. Benefits of Collective IntelligenceD. Working from Others’ Homes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。

2019-2020学年河北省邯郸市市第一中学高三物理月考试卷含解析

2019-2020学年河北省邯郸市市第一中学高三物理月考试卷含解析

2019-2020学年河北省邯郸市市第一中学高三物理月考试卷含解析一、选择题:本题共5小题,每小题3分,共计15分.每小题只有一个选项符合题意1. 如图所示,在等边三角形的三个顶点A、B、C处分别固定电荷量相等的正负点电荷.BOD是AC的中垂线,M、N关于O点对称.若检验电荷一q仅在电场力的作用下沿DOB 运动,设M、N两点的电势分别为、,检验电荷通过M、N两点时的加速度分别为、,速度分别为、,由M到O、O到N的过程中电场力做功绝对值分别为W1、W2,则下列关系正确的是A. >B. >C. <D. W1>W2参考答案:A解:A、C项:由图可知,AC为等量同种点电荷,在它们连线的两侧对称位置上的电场强度大小相等,方向相反,电势大小相等,所以点电荷A、C在M、N点产生的电势大小相等,点电荷B带负电,B产生的电场的对称性沿MNB的方向,所以B的电场中,M点的电势高于N点的电势.所以根据电场叠加的特点可知,M点的总电势高于N点的总电势,即φM>φN.负电荷在电势高处的电势能小,所以检验电荷-q在M点的电势能小,检验电荷-q 仅在电场力的作用下沿DOB运动,则电势能与动能的总和保持不变,检验电荷在M点的电势能小,则检验电荷在M点的动能大,在M点的速度大,即v M>v N,故A正确,C错误;B项:根据等量同种点电荷的特点可知,OM与ON之间的电场具有对称性,场强对称,即AC在M点的合场强的方向向上,在N点的合场强的方向向下;而点电荷B在M、N产生的电场场强的方向都向下,所以N点的场强是二者的代数和,M点的场强是二者的代数差,可知N点的场强大于M点的场强,根据F=qE,得,所以检验电荷在N点的加速度一定大于检验电荷在M点的加速度,故B错误;D项:根据等量同种点电荷的特点可知,点电荷A与C的合场强在OM与ON之间的电场具有对称性,场强对称,而负点电荷B在M、N产生的电场场强的方向都向下,而且在N点的场强大,所以ON之间的总电场强度的合大于OM之间总电场强度的和,所以U MO<U ON,电场力做功:W=qU,所以W1<W2,故D错误。

2019-2020学年河北省邯郸市第一中学高三生物三模试卷及答案

2019-2020学年河北省邯郸市第一中学高三生物三模试卷及答案

2019-2020学年河北省邯郸市第一中学高三生物三模试卷及答案一、选择题:本题共15小题,每小题2分,共30分。

每小题只有一个选项符合题目要求。

1.内环境是体内细胞与外界环境进行物质交换的媒介,下列关于人体内环境的叙述,正确的是()A.血浆与呼吸道交换气体只需通过毛细血管壁B.甲状腺激素、葡萄糖、氧气均可以存在于内环境中C.血浆中的蛋白质都可以通过毛细血管壁到达组织液D.体内细胞只通过内环境就可以与外界进行物质交换2.有关实验的叙述,正确的是A.常用番茄、苹果等组织样液作为鉴定植物组织内还原糖的实验材料B.蛋白质鉴定中双缩脲试剂的A液和B液混合后再加入C.脂肪鉴定中50%的酒精是为了溶解组织中的油脂D.在观察DNA和RNA在细胞中的分布实验中,盐酸有利于染色质中DNA与蛋白质的分离3.细胞膜的主要化学成分是A.蛋白质分子B.两层磷脂分子C.蛋白质和磷脂D.蛋白质和糖类4.下列叙述正确的是()A.A或a中的每对碱基都可能改变,这体现了基因突变的不定向性B. 基因重组是生物变异的根本来源C. 位于性染色体上的基因都与性别决定有关D. 隔离是物种形成的必要条件5.下列关于显微镜使用的叙述,正确的是A. 目镜越长放大倍数越高B. 要观察位于视野右上方的细胞,需要将装片向右上方移动C. 换上高倍镜后,观察到的视野范围更大D. 如果视野亮度太低,需要将反光镜调成平面镜6.下列有关植物激素描述,错误的是A.植物激素必须与受体结合后才能发挥作用B.植物激素具有调节作用,但不直接参与细胞的代谢C.植物激素都是由特定的组织细胞产生的微量有机物D.外界因素会影响激素的合成,进而调节基因组的表达7.对孟德尔所做的豌豆的一对相对性状的杂交实验来说,不必具备的条件是()A. 选用的一对相对性状要易于区分B. 实验选用的两个亲本一定是纯合子C. 要让具有显性性状的个体作父本D. 要让两个亲本之间进行有性杂交8.下列关于膜蛋白和物质跨膜运输的叙述,错误的是A. 膜蛋白在细胞膜上的分布是不对称的B. 膜蛋白不参与物质跨膜的被动运输过程C. 主动运输可以使被运输离子在细胞内外浓度不同D. 物质通过脂质双分子层的扩散速率与其脂溶性有关9.研究小组探究了萘乙酸(NAA)对某果树扦插枝条生根的影响,结果如下图。

2019-2020学年邯郸市第一中学高三生物第三次联考试题及答案

2019-2020学年邯郸市第一中学高三生物第三次联考试题及答案

2019-2020学年邯郸市第一中学高三生物第三次联考试题及答案一、选择题:本题共15小题,每小题2分,共30分。

每小题只有一个选项符合题目要求。

1. 科研人员在一个远离大陆的荒岛上发现了一种昆虫(其种群的性别比例大致为1:1),调查发现其触角长短由位于性染色体上的一对等位基因D、d控制,短触角雄虫的数量远多于短触角雌虫数量。

下列叙述错误的是()A.基因D、d与位于常染色体上的基因在遗传时遵循自由组合定律B.若短触角为显性性状,该昆虫性染色体组成为ZW型C.若短触角为隐性性状,该昆虫性染色体组成为XY型D.多对短触角雌、雄个体杂交,不能判断短触角的显隐性2. 如图所示甲表示植物的生长速度与生长素浓度的关系,乙表示水平放置一段时间后植物幼苗的生长状况。

下列说法中正确的是()A. 若乙图中Ⅰ处的生长素浓度在甲图的DE段,则Ⅰ处的生长素浓度可能在BD段B. Ⅰ、IV处的生长状况体现了生长素作用的两重性C. 生长素对Ⅰ、Ⅰ处的生长起促进作用,对Ⅰ、Ⅰ处的生长起抑制作用D. 若乙图中Ⅰ处的生长素浓度在甲图的AB段,则Ⅰ处的生长素浓度可能在BD段3. 下列关于细胞的叙述,不能体现“结构与功能相适应”观点的是A. 豚鼠胰腺腺泡细胞代谢旺盛,核仁的体积较大B. 人体细胞的细胞膜外侧分布有糖蛋白,有利于接收信息C. 小肠绒毛上皮细胞内的线粒体分布在细胞中央,有利于吸收和转运物质D. 植物根尖成熟区细胞含有大液泡,有利于调节细胞的渗透压4. 图1曲线表示不同生长素浓度对某植物茎生长的影响,图2是用不同浓度的生长素类似物溶液处理扦插枝条的实验结果,下列分析正确的是()A. 由图l可知,茎弯曲生长时背光的一侧的生长素的浓度应高于D点对应的浓度B. 从图2信息可确定促进扦插枝条生根的最适生长素类似物浓度在8~12ppm之间C. 图l和图2分别说明生长素对茎和根的生长都具有两重性D. 利用低浓度的2,4-D作除草剂,可抑制农田中的杂草生长5. 生活在沙漠中的仙人掌的细胞中含量最多的化合物是( )A. 蛋白质B. 糖类C. 水D. 无机盐6. “制作DNA双螺旋结构模型”的实验中,若有4种碱基塑料片共20个,其中4个C,6个G,3个A,7个T,脱氧核糖和磷酸之间的连接物14个,脱氧核糖塑料片40个,磷酸塑料片100个,代表氢键的连接物若干,脱氧核糖和碱基之间的连接物若干,则A. 能搭建出20个脱氧核苷酸B. 搭建的分子片段中每个脱氧核糖都与2个磷酸相连C. 能搭建出47种不同的DNA分子模型D. 能搭建出一个4碱基对的DNA分子片段7. 下列有关神经系统对内脏活动的分级调节的叙述,错误的是()A. 脊髓是调节内脏活动的低级中枢,通过它可以完成简单的内脏反射活动B. 脑干含有许多重要的调节内脏活动的基本中枢,如调节呼吸运动的中枢、调节心血管活动的中枢C. 下丘脑是调节内脏活动的较高级中枢,使内脏活动和其他生理活动相联系,以调节体温、水平衡、摄食等主要生理过程D. 大脑皮层是许多低级中枢活动的高级调节者,对各级中枢的活动起调整作用,但不能对自主神经系统发挥作用8. 调查时发现某昆虫种群中,AA个体所占比例为30%,Aa个体所占比例为60%,aa个体所占比例为10%。

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