徐闻中学2020届高二快班第8周周测(八)

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2020届湛江市徐闻县徐闻中学高三英语模拟试题及答案解析

2020届湛江市徐闻县徐闻中学高三英语模拟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AI once taught in a small private school. Each morning at nine o’clock all the students, ranging in age from three to seven years old, gathered in the Great Room for a warm-up in preparation for the day.One morning the headmistress made an announcement to all the children gathered,“Today we begin a great experiment of the mind.” She held up two ivy(常春藤) plants, each potted in an identical container. She continued, “Do they look the same?”All the children nodded. So did I, for, in this way, I was alsoa child.“We will give the plants the same amount of light, the same amount of water, but not the same amount of attention,” She said. “Together we are going to see what will happen when we put one plant in the kitchen away from our attention and the other plant right here in this room. Each day for the next month, we shall sing to our plant in the Great Room and tell it how much we love it, and how beautiful it is. We will use our good minds to think good thoughts about it.”Four weeks later my eyes were as wide and disbelieving as the children’s. The kitchen plant was leggy and sick-looking, and it hadn’t grown at all. But the Great Room plant, which had been sung to and surrounded by positive thoughts and words, had increased threefold in size with dark leaves that were filled with energy.In order to prove the experiment, the kitchen ivy was brought to the Great Room to join the other ivy. Within three weeks, the second plant had caught up with the first ivy. Within four weeks, they could not be distinguished, one from the other.I took this lesson to heart and made it my own.1. Why did the headmistress do the experiment?A. She wanted to teach me a lesson.B. She expected the students to learn to grow plants.C. She meant to prove the impact of good minds on growth.D. She intended to show students how to save a sick-looking plant.2. What happened to the ivy in the kitchen at last?A. It stopped growing and died.B. It was leggy and sick with dark leaves.C. It looked almost the same as the other one.D. It grew better than the one in the Great Room.3. What can be a suitable title for the passage?A. Life Means GrowthB. Things Grow with LoveC. Equality Makes a DifferenceD. Positive Thoughts Really CountBIn the Hollywood industry, most of the studios are using AI to make movies for various reasons such as getting the actors out of danger, replacing the actors indifferent scenes, forming appealing atmosphere to enhance（增强）the views, etc.Directors and producers are using VFX (Visual effects), animations and AI to makea model that looks like the actor and replaces the actor's place. In particular, AI is used in scenes where actor shave to produce certain stunts （特技）to develop setups in the studio artificially. VFX is used to later change the internal studio backgroundsto a different place in the movie.There are many movies with two characters of the same actor. When AI was not a part of the film, editors used different methods to show the two aspects of the same actor in one scene, but now AI is being used to form the second character of the same actor and is being performed to the viewers.By a perfect combination of animation, VFX and AI, realistic models are being created. And the most fun part is the fictitious character can hold the face of the actor but the age, hairstyles, and clothing can be changed to create more enhanced looks according to the movie scene and story. With the help of AI, the directors recreating appealing scenes to enhance the thrill and excitement. InJurassic Park,no dinosaurs were running but with the help of AI and visual effects, we could enjoy the scenes and the atmospheres.The directors and the producers direct to form a green screen including the obstacles and those green screens get replaced with the views that are made from AI and VFX, and the actors make the scenes alive and deliver the most suitable action-packed movie scenes. This method also enhances the viewers' experience, which makes the movie a blockbuster（大片）.4. What does the author intend to tell us in paragraph 1?A. How AI helps actors.B. What AI brings to movies.C. Why AI is applied to movies.D. Where AI is made full use of.5. What can we infer from paragraph 3?A. AI can be used as an editor.B. Editors consider AI irreplaceable.C. Editors used many methods to replace AI.D. AI makes what used to be complex scenes easier.6. What's the author's attitude to using VFX, animations and AI in movies?A. Supportive.B. Sceptical.C. Unconcerned.D. Enthusiastic.7. Which of the following could be the best title for thetext?A. What AI Brings Out Hollywood MoviesB. Why AI Is Applied to Hollywood MoviesC. Which Hollywood Movies Make Much Use of AID. How AI Is Being Applied to Hollywood MoviesCIf you’ve ever had a dog, you know just how deep a connection you can develop with “man’s best friend”. But a dog has a much shorter life span — about 12 to 15 years long — than humans, which means every dog owner has to go through the heartbreaking moment when their loving pet passes away.Why not make a clone of that dog then? This is the solution offered by a South Korean company, Sooam Biotech Research Foundation. The company has successfully cloned at least 400 dogs, mostly for US customers, ever since it pioneered the technique in 2005. Now, Sooam Biotech is planning to introduce their business toUKdog owners, offering them dogs that look just like their lost ones.Meanwhile, another dog is selected to supply an egg.Researchers then replace the DNA in the egg with that from the skin cell and implant the egg into the womb (子宫) of a female dog. The egg grows into a puppy over the following two months. To clone a dog, researchers first need to take a skin cell from a living dog or one that has just died.The whole process takes less than a day, but it comes at a shockingly high price — around £63,000 (614,000 yuan). But if you can’t afford it now, you can also save the cells in a laboratory and access them at a later date. Justlike identical twins of humans, they share the exact same DNA but there will still be small differences between them. “The spots on a Dalmatian clone will be different, for example,” Insung Hwang, head of Sooam Biotech, toldThe Guardian. However, as magical as cloning might sound, there is no guarantee that the cloned dog will be a perfect replica of the original one.Dog owners will also have to accept the fact that personality is not “clone-able”. Apart from genes, personality is also determined by upbringing and environment, which are both “random elements [that] cloning technologies simply cannot overcome”, Professor Tom Kirkwood atNewcastle University,UK, toldThe Telegraph.Perhaps bringing our dogs back with cloning is not the best way to remember them after all.Kirkwood, a dog owner himself, pointed out: “An important aspect of our relationship with them is coming to terms with the pain of letting go.”8. According to the article, Sooam Biotech Research Foundation is ______.A. working on plans to help dog owners enjoy their pets longerB. offering a way to help dogs give birth to more puppiesC. providing a service that will make copies of pet dogsD. introducing a completely new technique to clone dogs9. Which of the following statements about dog cloning is TRUE according to the article?A. Dog cloning technology hadn’t been put into practice until recently.B. Dog cloning is very expensive and usually takes several months to complete.C. Dog cloning is very popular among US andUKpet owners.D. Cloned dogs might develop different habits and characteristics even though they look very similar.10. Which of the following shows the correct order of the dog cloning process?a. an egg is taken from another dogb. a skin cell is taken from the pet dog and saved in a laboratoryc. the egg is placed in the womb of a female dogd. the DNA of the egg is replaced by the DNA from the skin celle. the egg grows into a puppy in two monthsA. acbde.B. adbce.C. bacde.D. badce.11. We can learn from the article thatKirkwood______ dog cloning.A. disapproves ofB. supportsC. is afraid ofD. is curious aboutDAt any moment, about half the world’s population is wearing denim（牛仔布）clothes. But few realize tiny bits of denim have been adding up to a surprising amount of pollution in water, as a new study shows.Sam Athey, one of the study’s authors, says, “Even though denim is made of a natural material—cotton, it contains chemicals.” Cotton fibers were treated with many types of chemicals, she notes. Some improve its durability and feel. Others give denim its distinctive blue color1 .Athey and her team washed jeans and found that about 50,000 microfibers came off from each pair per wash. Not all of those fibers make their way into the environment. Wastewater treatment plants catch about 83 to 99 percent ofthem. Catching 99 percent may sound pretty good. But one percent of 50,000 is still 500 fibers per wash. And since every pair of jeans is washed again and again, it still adds up to lots of microfibers entering the water environment.Denim microfibers showed up in sediment（沉淀物）from the Great Lakes. More of these fibers polluted a series of shallow lakesin southern Ontario. They even turned up in sediment from the Arctic Ocean in northern Canada. The team found denim accounted for 12 to 23 percent of microfibers in the sediment. There were other microfibers too. But the team focused on denim because so many people wear jeans.“Everyone wears jeans so they could be our largest input of microfibers into our streams and soils,” Athey says. “An easy way to limit that is by washing our jeans less often.” Athey grew up thinking she should wash her jeans after wearing them every couple of times, but most jean companies recommend washing them no more than once a month. “The solution is not that you shouldn’t wear jeans,” she says. “We need to buy fewer denim clothes and only wash them when they truly need it.”12. Which of the following is TRUE according to the passage?A. Chemicals are contained in natural cotton.B. Chemicals can make denim color1 ful.C. Chemicals prevent fibers from falling.D. Chemicals can make the life of denim longer.13. What does the underlined word “them” in Paragraph 3 refer to?A. Denim.B. Sediment.C. Microfibers.D. Chemicals.14. What does the author mainly want to tell us through Athey’s words ?A. To avoid wearing jeans.B. To reduce denim consumption.C. To wash jeans more often.D. To limit input in denim production.15. In which section of a magazine might the text be found?A. Science.B. Entertainment.C. Tourism.D. Geography.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。

广东省湛江市徐闻县徐闻中学高二物理联考试卷含解析

广东省湛江市徐闻县徐闻中学高二物理联考试卷含解析一、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. （单选）关于自由落体运动，下列说法正确的是A．不考虑空气阻力的运动是自由落体运动B．自由落体运动是初速度为零的匀加速直线运动C．质量大的物体，所受重力大，因而落地速度大D．物体下落的加速度在地球上任何地点都相同参考答案：B2. （多选题）一个静止的放射性原子核发生天然衰变时，在匀强磁场中得到内切圆的两条路经，如图所示，两圆半径之比为44：1，则下列说法中，正确的是（）A．发生的是α衰变B．轨迹2是反冲核的径迹C．反冲核是逆时针运动，放射出的粒子是顺时针运动D．该放射性元素的原子序数是90参考答案：BC【考点】原子核衰变及半衰期、衰变速度；带电粒子在匀强磁场中的运动．【分析】静止的放射性原子核发生了衰变放出粒子后，新核的速度与粒子速度方向相反，由图看出，放出的粒子与新核所受的洛伦兹力方向相同，根据左手定则判断粒子与新核的电性关系，即可判断发生了哪种衰变．衰变前后，动量守恒，衰变后的粒子在匀强磁场中做匀速圆周运动，洛伦兹力提供向心力可得半径公式，结合轨迹图分析解答即可【解答】解：A、由运动轨迹可知，衰变产生的新粒子与新核所受洛伦兹力方向相同，而两者运动方向相反，故小粒子应该带负电，故发生了β衰变，故A错误B、静止原子核发生β衰变时，根据动量守恒定律得知，β粒子与反冲核的动量大小相等、方向相反，由半径公式r=可知，两粒子作圆周运动的半径与电荷量成反比，β粒子的电荷量较小，则其半径较大，即半径较大的圆是β粒子的径迹，半径比较小的轨迹2是反冲核的径迹．故B正确．C、衰变后新核所受的洛伦兹力方向向右，根据左手定则判断得知，其速度方向向下，沿小圆作逆时针方向运动．故C正确．D、两圆半径之比为44：1，由半径公式r=得，β粒子与反冲核的电荷量之比为：1：44，所以该放射性元素的原子序数是：n=44﹣1=43．故D错误故选：BC3. 带电质点在匀强磁场中运动，某时刻速度方向如图所示，所受的重力和洛伦兹力的合力恰好与速度方向相反，不计阻力，则在此后的一小段时间内，带电质点将A．可能做直线运动B．可能做匀减速运动C．一定做曲线运动D．可能做匀速圆周运动参考答案：C4. （多选）下列说法正确的是（）．Th经过6次α衰变和4次β衰变后成为稳定的原子核Pb．发现中子的核反应方程是Be+He→C+n．20个U的原子核经过两个半衰期后剩下5个U．一定强度的入射光照射某金属发生光电效应时，入射光的频率越高，单位时间内逸出的光电子数解：A、由质量数和电荷数守恒知：208=232﹣6×4，82=90﹣6×2+4，A正确；B、发现中子的核反应方程是Be+He→C+n，B正确；C、半衰期是统计规律，对少数原子核不适用，C错误；D、一定强度的入射光照射某金属发生光电效应时，入射光的强度越大，单位时间内逸出的光电子数就越多，D错误；E、根据玻尔理论可知，氢原子辐射出一个光子后，氢原子的电势能减小，核外电子的运动速度增大，E正确；故选：ABE5. 如图所示，平行线代表电场线，但未标明方向，一个带正电、电量为10-6 C的微粒在电场中仅受电场力作用，当它从A点运动到B点时（轨迹为虚线1、2中的某一条）动能减少了10-5 J，已知A点的电势为－10 V，则以下判断正确的是（）A．B点电势为0 V B．B点电势为－20 VC．微粒的运动轨迹如图中的虚线1所示D．微粒的运动轨迹如图中的虚线2所示参考答案：AD二、填空题：本题共8小题，每小题2分，共计16分6. 如下图所示，图甲为热敏电阻的R－t图象，图乙为用此热敏电阻R和继电器组成的一个简单恒温箱温控电路，继电器线圈的电阻为200 Ω。

广东省徐闻中学2018学年高三理综第二学期第八次周测

广东省徐闻中学2018-2018学年高三第二学期第八次周测理科综合能力测试（满分：300分时间：150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考生号、试室号、座位号填写在答题卡上，并用2B铅笔在答题卡上的相应位置填涂考生号。

用2B铅笔将试卷类型(A)填涂在答题卡相应位置上。

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选项的答案信息点涂黑，如需改动，用橡皮擦干净后，再选涂其他答案，答案不能答在试卷上。

3．非选择题必须用黑色字迹钢笔或签字笔作答，答案必须写在答题卡各题目指定区域内相应位置上；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。

考试结束后，将试卷和答题卡一并交回。

一、单项选择题：本大题共16小题，每小题4分。

共64分。

在每小题给出的四个选项中，只有一个选项符合题目要求，选对的得4分，选错或不答的得0分。

1．在我市南澳岛的某农业示范基地，海虫草等“海水蔬菜”长势良好。

这是一些从国外引进的蔬菜品种，以高盐分的海水进行浇灌，所需无机盐由海水提供，生长周期短，营养价值高，被列为国家八六三推广技术项目。

大面积推广“海水蔬菜”种植的目的不包括．．．A．节约淡水资源，缓解水资源短缺的问题B．增加当地的生物多样性，提高生态系统稳定性C．充分利用闲置的盐碱地，减少对耕地的需求压力D．减少化肥用量，有利于保护环境2．正常情况下，男性的性染色体不可能．．．来自其A．外祖父 B．外祖母 C．祖父 D．祖母3．下列中哪一项是垂体在生命活动调节中所起作用？A．调节胰岛素的分泌，降低血糖浓度B．释放抗利尿激素，促进肾小管和集合管对水的重吸收C．使皮肤血管收缩，减少散热D．使上肢骨骼肌收缩，缩手以避开有害刺激4．下表中的试剂甲、细胞结构乙、因变量丙依次是组别材料实验条件观察内容a RNA 试剂甲颜色反应b 人的口腔上皮细胞健那绿细胞结构乙c 酵母菌和葡萄糖溶液溴麝香草酚蓝水溶液因变量丙A．吡罗红、线粒体、溶液变黄色的速度B．醋酸洋红、线粒体、气泡产生的速度C．吡罗红、细胞核、溶液变浑浊的速度D．醋酸洋红、细胞核、溶液变灰绿色的速度3Fe5．将若干只雌、雄鼠放在一定大小的笼子中饲养，让它们自由交配繁殖，并且给予足够的饲料和水，则笼内鼠的数量和饲养时间之间的关系最可能是右图中的 A ．a B ．b C ．c D ．d6．下列关于植物生长素的叙述中，正确的是 A ．生长素通过促进细胞分裂而促进植物的生长 B ．燕麦幼苗中生长素的极性运输与光照方向有关 C ．生长素从顶芽运输到侧芽的方式是主动运输D ．自然状态下西瓜的果实发育所需的生长素是由邻近的芽和幼叶产生的 7．下列表述不正确．．．的是 A ．人造刚玉熔点很高，可用作高级耐火材料，主要成分是Al 2O 3 B ．清洁能源所用光电池的生产材料主要是用高纯度的硅 C ．在医疗上碳酸氢钠可用于治疗胃酸过多D ．氮的固定只有在高温、高压、催化剂的条件下才能实现 8．设N A 代表阿伏加德罗常数（N A ）的数值，下列说法正确的是 A ．1mol 硫酸钾中阴离子所带电荷数为N AB ．乙烯和环丙烷（C 3H 6）组成的28g 混合气体中含有3N A 个氢原子C ．将0.1mol 氯化铁溶于1L 水中，所得溶液含有0.1N A 个D ．标准状况下，22.4L 氯气与足量氢氧化钠溶液反应转移的电子数为N A 9．下列离子方程式正确的是A ．石灰石溶于醋酸： CaCO 3 + 2CH 3COOH = 2CH 3COO －+ Ca 2++ CO 2↑+ H 2O B ．钠与硫酸铜溶液反应: Cu 2++ 2Na = 2Na ++ CuC ．铁屑溶于过量稀硝酸：3Fe + 8H ++ 2NO 3－＝3Fe 2++ 2NO↑+ 4H 2O D ．FeI 2溶液中通入少量氯气：2Fe 2++ Cl 2＝ 2Fe 3++ 2Cl －10．化合物M 溶于水，加入少量硝酸银溶液有白色沉淀。

广东省湛江市徐闻县徐城中学2020年高二语文期末试卷含解析

广东省湛江市徐闻县徐城中学2020年高二语文期末试卷含解析一、现代文阅读（35分，共3题）1. 阅读下面的文字，完成下列小题。

材料一:党的十八届五中全会10月29日在北京胜利闭幕，会议审议通过了《中共中央关于制定国民经济和社会发展第十三个五年规划的建议》。

全会及其通过的《建议》提出了全面建成小康社会的新目标，首次提出创新、协调、绿色、开放、共享五大发展理念，为中国“十三五”乃至更长时期的发展描绘出新蓝图。

“十三五’规划是党的十八大把生态文明纳入‘五位一体’总布局后的首个五年规划，公报将“生态环境质量总体改善’列入全面建成小康社会的新目标，并用很重的篇幅强调坚持绿色发展，释放出党中央努力建设美丽中国的决心和信心。

”清华大学经济管理学院教授白重恩说。

(摘编自《新华网》)材料二:8月4日，中央电视台开始在新闻联播节目推出《塞罕坝生态文明建设范例启示录》系列报道。

报道称，塞罕坝主动修复生态，践行“绿水青山就是金山银山”的理念，是生态文明建设的一个活标本。

三代人用了55年的时间，将昔日飞乌不栖、黄沙遮天的荒原，变成百万亩人工林海。

塞罕坝林场的林地面积，由建场前的24万亩增加到目前的112万亩，成为世界上面积最大的一片人工林。

森林覆盖率由12%提高到80%。

今天的塞罕坝，绿水青山带来真金白银，绿色发展之路越走越宽。

郁郁葱葱的林海，成为林场生产发展、职工生活改善、周边群众脱贫致富的“绿色银行”。

(摘自《人民日报》)材料三:中新网北京8月8日电(记者张尼)日前，第四批中央环境保护督察全面启动，督察组将分别进驻吉林、浙江、山东等8省份，这也标志着中央环保督察将实现对31省份的全覆盖。

此前批次的督察中，已有上万人被问责。

新一轮督察风暴又将揪出哪些环保“顽疾”引发外界关注。

从另一组数字上也能看出中央环保督察取得的成效。

环保部副部长黄润秋近日透露，此前的中央环保督察中，初步罚款约8．8亿元，立案侦查1183件，拘留1103人，约谈13593人，问责11390人，切实推动解决了一大批环境问题，增强了人民群众获得感。

2020-2021学年广东省湛江市徐闻县徐城中学高二数学文月考试题含解析

2020-2021学年广东省湛江市徐闻县徐城中学高二数学文月考试题含解析一、选择题：本大题共10小题，每小题5分，共50分。

在每小题给出的四个选项中，只有是一个符合题目要求的1. 双曲线的渐近线方程是 ( )、、、、参考答案：A略2. 用秦九韶算法计算多项式在时的值时,的值为参考答案：C略3. 已知函数，集合只含有一个元素，则实数的取值范围是（）A. B. C. D.参考答案：B略4. 已知，则的值等于（）A． B．1 C．2 D．3参考答案：DD略6. 复数是纯虚数，则实数的值为A．3 B ．0 C ．2 D ．3或2ks5u参考答案：C略7. 已知等比数列{a n }中，，，则（）A ．±2B ．－2C ．2D ．4参考答案：C因为等比数列中，，，所以，，即，，因此，因为与同号，所以，故选C．8. 正三棱锥的底面边长为2，侧面均为直角三角形，则此棱锥的体积为（）A、；B、；C、；D、参考答案：A略9. 已知抛物线x2=2py（p＞0）的焦点为F，过点F且倾斜角为150°的直线l与抛物线在第一、二象限分别交于A，B两点，则（）A．3 B．C．D．参考答案：A【考点】抛物线的简单性质．【分析】设直线l的方程为：x=﹣（y﹣），代入抛物线方程，求得A和B坐标，由抛物线的焦点弦公式，即可求得的值．【解答】解：设A（x1，y1），B（x2，y2），直线l的方程为：x=﹣（y﹣）则：，消去x可得12y2﹣20py+3p2=0，点A在第一象限，解得：y1=，y2=，∴===3，故选A．10. 垂直于直线且与圆相切于第一象限的直线方程是（）A．B．C．D．参考答案：A二、填空题:本大题共7小题,每小题4分,共28分11. 圆心在直线x﹣2y=0上的圆C与y轴的正半轴相切，圆C截x轴所得弦的长为2，则圆C的标准方程为．参考答案：（x﹣2）2+（y﹣1）2=4考点：圆的标准方程．专题：直线与圆．分析：由圆心在直线x﹣2y=0上，设出圆心坐标，再根据圆与y轴相切，得到圆心到y轴的距离即圆心横坐标的绝对值等于圆的半径，表示出半径r，由弦长的一半，圆的半径r及表示出的d利用勾股定理列出关于t的方程，求出方程的解得到t的值，从而得到圆心坐标和半径，根据圆心和半径写出圆的方程即可．解答：解：设圆心为（2t，t），半径为r=|2t|，∵圆C截x轴所得弦的长为2，∴t2+3=4t2，∴t=±1，∵圆C与y轴的正半轴相切，∴t=﹣1不符合题意，舍去，故t=1，2t=2，∴（x﹣2）2+（y﹣1）2=4．故答案为：（x﹣2）2+（y﹣1）2=4．点评：此题综合考查了垂径定理，勾股定理及点到直线的距离公式．根据题意设出圆心坐标，找出圆的半径是解本题的关键．12. 函数f（x）=（x2+x+1）e x（x∈R）的单调减区间为．参考答案：（﹣2，﹣1）（或闭区间）【考点】利用导数研究函数的单调性．【分析】对函数f（x）=（x2+x+1）e x（x∈R）求导，令f′（x）＜0，即可求出f（x）的单调减区间．【解答】解：∵函数f（x）=（x2+x+1）e x，∴f′（x）=（2x+1）e x+e x（x2+x+1）=e x（x2+3x+2）要求其减区间，令f′（x）＜0，可得e x（x2+3x+2）＜0，解得，﹣2＜x＜﹣1，∴函数f（x）的单调减区间为（﹣2，﹣1），故答案为（﹣2，﹣1）．【点评】解此题的关键是对函数f（x）的导数，利用导数求函数的单调区间是比较简单的．13. 100以内的正整数有个能被7整除的数．参考答案：14它们分别为，共计14个.14. 将一颗骰子先后抛掷2次，以第一次向上点数为横坐标x，第二次向上的点数为纵坐标y的点（x，y）在圆x2+y2=9的内部的概率为．参考答案：【考点】列举法计算基本事件数及事件发生的概率．【专题】计算题；对应思想；定义法；概率与统计．【分析】由题意知本题是一个古典概型，试验发生包含的所有事件总数为36，满足条件的事件可以通过列举得到事件数，根据古典概型公式得到结果．【解答】解：由题意知本题是一个古典概型，试验包含的所有事件总数为36，满足条件的事件有（1，1），（1，2），（2，1），（2，2），共有4种结果，记点（x，y）在圆x2+y2=9的内部记为事件A，∴P（A）==，即点（x，y）在圆x2+y2=9的内部的概率，故答案为【点评】本题是一个古典概型问题，这种问题在高考时可以作为文科的一道解答题，古典概型要求能够列举出所有事件和发生事件的个数，本题可以列举出所有事件，是一个基础题．15. 如果平面α∥平面β且直线l⊥α，那么直线l与平面β的位置关系是．参考答案：l⊥β【考点】平面的基本性质及推论．【分析】由已知中平面α∥平面β且直线l⊥α，根据面面平行的几何特征及线面垂直的判定方法，易得到直线l⊥平面β，得到答案．【解答】解：∵平面α∥平面β又∵直线l⊥平面α故直线l⊥平面β故答案为：l⊥β16. 已知等差数列的首项及公差都是整数，前项和为，若，设的结果为。

2020-2021学年广东省湛江市徐闻县徐城中学高二物理联考试卷含解析

2020-2021学年广东省湛江市徐闻县徐城中学高二物理联考试卷含解析一、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，小物块位于光滑的斜面上，斜面固定在地面上，在小物块沿斜面下滑的过程中斜面对小物块的作用力A．垂直于接触面，做功为零B．垂直于接触面，做功不为零C．不垂直于接触面，做功为零D．不垂直于接触面，做功不为零参考答案：A2. 如图所示，在水平面上的箱子内，带异种电荷的小球a、b用绝缘细线分别系于上、下两边，处于静止状态．地面受到的压力为N，球b所受细线的拉力为F。

剪断连接球b的细线后，在球b上升过程中地面受到的压力 ( )A．大于N+F B．等于NC．等于N＋F D．小于N参考答案：A3. （单选）如图所示，用金属网把验电器罩起来，再使带电金属球靠近验电器，则下面关于验电器箔片的说法正确的是A．箔片张开B．箔片不张开C．带电金属球电量足够大时才会张开D．箔片张开的原因是金属网罩感应带电产生的电场参考答案：B4. 某种气体在不同温度下的气体分子速率分布曲线如图所示，图中f（v）表示v处单位速率区间内的分子数百分率，所对应的温度分别为TⅠ，TⅡ，TⅢ，则( )A. TⅠ<TⅡ<TⅢB. TⅠ>TⅡ>TⅢC. TⅠ=TⅡ=TⅢD. TⅡ>TⅠ ,TⅡ>TⅢ参考答案：A5. 如图所示的实线和虚线分别表示同一个单摆在A、B两个大小相同的星球表面上的振动图象。

其中实线是A星球上的，虚线是B星球上的，那么两个星球的平均密度之比为A． B．C． D．参考答案：D二、填空题：本题共8小题，每小题2分，共计16分6. （4分）一定质量的气体保持压强做等压变化，体积从20升膨胀到30升，过程中气体从外界吸收热量，则气体的内能增加__________J。

参考答案：增加7. 某同学把两块大小不同的木块用细线连接，中间夹一被压缩的弹簧，如图所示，将这一系统至于光滑的水平桌面上，烧断细线，观察物体的运动情况，进行必要的测量，寻找物体间相互作用时的不变量。

2020届湛江市徐闻县徐闻中学高三英语期末试题及答案解析

2020届湛江市徐闻县徐闻中学高三英语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AIn Sweden, McDonald’s is building “bee hotels” on the back of its roadside billboards (广告牌) to help save the country’s decreasing bee population. It launched the campaign together with outdoor advertising giant JCDecaux. Six large wooden bee hotels, with drilled holes on the front, first appeared on the back of a north-facing billboard in Jarfalla in September.“Without pollination (授粉) from bees, a thirdof the food we eat would be threatened.” McDonald’s said. But it turns out that at least 30 percent of the country’s wild bee population is endangered, according to the fast-food chain. A big problem is that they lack places to live. Based on data released by Chalmers University of Technology, we know Sweden owns 274 species of bees, of which 37 species are bumblebees, and more than a third are decreasing or face the risk of decreasing. Their natural habitats have been damaged by factors including the changes of agricultural activities and fast urbanization (城市化). Fortunately, most bees are able to survive in urban habitats, like the bee hotels.Every McDonald’s authorized restaurant in Sweden will be allowed to order their own bee hotel billboards and design the messages by themselves, as the fast-food chain says. It is their hope that the number of hotels could grow to a greater extent in the near future. Great efforts in addition to that have been made by the company. On World Bee Day, May 20, it introduced “the world’s smallest McDonald’s”. McHive, which could function as an actual beehive (蜂箱). Designed by set designer Nilsson himself, the creation was sold for $10,000 at a charity fundraiser held for Ronald McDonald House Charities.Beehives can be found on the rooftops of some McDonald’s restaurants in Sweden, too. This took place in certain areas but is now followed by an increasing number of participants. More McDonald’s restaurants are making an effort to improve the living conditions of wild bees by removing the grass round their restaurants to grow flowers and plants instead.1. According to the passage, the challenge that wild bees are facing is ________A. the fast process of industry.B. the world's Large amount of trash.C. the rapid development of urbanization.D. the sharp growth of population.2. How does McDonald's help wild bees in Sweden?A. By providing shelters for bees.B. By offering food to bees.C. By advertising rescue activities.D. By putting up more billboards.3. What is the best title for the text?A. Wild bees in dangerB. The loss of bees’ habitatsC McDonald’s bee hotelsD. The protection of wild beesBThe early life of the green sea turtle (海龟) is full of danger. Only one in 1,000 baby sea turtles survive to adulthood (成年). From its home in the sand, it breaks its egg with an egg tooth. Its mother is not there to help it. Instead, it is greeted by crabs, coyotes,and dogs waiting to eat it for dinner. To survive, the baby turtle must hide in the sand until night. Then, it moves slowly to the sea.The small turtle must swim hard to reach the ocean waters. In the sea, it tries hard to find food. It must also keep itself from being food for fish.As dangerous as the sea turtle’s life is in the natural world, its most dangerous enemies are humans. The rubbish left by humans in the ocean causes problems for the small green sea turtle. A little turtle might eat a piece ofplastic (塑料) in the sea. It might also eat oil on the ocean’s surface. Young turtles also get caught in fishing nets. There are laws against hunting sea turtles. Still, many are hunted, both for their meat and for their shells (壳). All of these dangers must be prevented.Sea turtles that do survive to grow into adulthood go through many changes. For example, adult green sea turtles weigh about 500 pounds. They stop eating jellyfish and other meat and eat only plants. And they may plan a trip to go back home again. A mother sea turtle goes back to the beach where she was born. This is the only place where she will lay eggs. Even if it has been forty years since she was a baby, she always knows her way back home.4. Why do baby turtles move to the sea at night?A. They dislike sunshine.B. They prefer lower temperatures.C. They can find food easily then.D. They need to avoid enemies.5. What does the author think of the young turtles in Paragraph 3?A. Pitiful.B. Careless.C. Interesting.D. Courageous.6. What can we learn about sea turtles?A. They mainly feed on fish and meat.B. They always produce eggs at their birthplaces.C. They can live for around forty years.D. They visit their beach homes several times a year.7. What is the text mainly about?A. The homes of green sea turtles.B. How sea turtles find their food.C. The dangers faced by sea turtles.D. How young turtles become adults.CGetting rid of dirt, in the opinion of most people, is a good thing However, there is nothing fixed about attitudes to dirt.In the early 16th century, people thought that dirt on the skin was a means to block outdisease, as medical opinion had it that washing off dirt with hot water could open up the skin and let ills in. A particular danger was thought to lie in public baths. By 1538, the French king had closed the bath houses in his kingdom. So did the king ofEnglandin 1546. Thus began a long time when the rich and the poor inEuropelived with dirt in a friendly way. Henry IV, king ofFrance, was famously dirty. Upon learning that a nobleman had taken a bath, the king ordered that, to avoid the attack of disease, the nobleman should not go out.Though the belief in the merit(优点) of dirt was long-lived, dirt has no longer been regarded as a nice neighbor ever since the 18th century. Scientifically speaking, cleaning away dirt is good to health. Clean water supply and hand washing are practical means of preventing disease. Yet, it seems that standards of cleanliness have moved beyond science since World War II. Advertisements repeatedly sell the idea: clothes need to be whiter than white, cloths ever softer, surfaces to shine. Has the hate for dirt, however, gone too far?Attitudes to dirt still differ hugely nowadays. Many first-time parents nervously try to warn their children off touching dirt, which might be responsible for the spread of disease. On the contrary, Mary Ruebush, an American immunologist(免疫学家), encourages children to play in the dirt to build up a strong immune system. And the latter position is gaining some ground.8. The kings ofFranceandEnglandin the 16th century closed bath houses because .A. they lived healthily in a dirty environmentB. they thought bath houses were too dirty to stay inC. they considered bathing as cause of skin diseaseD. They believed disease could be spread in public baths9. Which of the following best describes Henry IV’s attitude to bathing?A. CuriousB. AfraidC. ApprovingD. Uninterested10. How does the passage mainly develop?A. By following the order of time.B. By making comparison.C. By providing examplesD. By following the order of importance.111. What is the author’s purpose in writing the passages?A. To call attention to the danger of dirt.B. To introduce the history of dirt.C. To present the change of views on dirt.D. To stress the role of dirt.DThe regular world presented to us by our five senses — you could call it reality 1.0 — is not always the most user-friendly. We get lost in unfamiliar cities; we meet people whose language we don’t understand. So why not try the improved version: augmented reality（AR）or reality 2.0 ? AR technology adds computer-produced images on the real world via a mobile phone camera or special video glasses.Early forms of AR are already here — smart phones can deliver information about nearby ATMs and restaurants and other points of interest. But that’s just the beginning. A few years from now the quantity of information available will have increased hugely. You will not only see that there’s a Chinese restaurant on the next block, but you will be able to see the menu and read reviews of it.This is where the next revolution in computing will take place: in the interface（界面）between the real world and the information brought to us via the Internet. Imagine bubbles floating before your eyes, filled with coolinformation about anything and everything that you see in front of you.Let’s jump ahead to ten years from now. A person trying to fix a car won’t be reading a book with pictures; he will be wearing a device that projects animated 3D computer graphics onto the equipment under repair, labelling parts and giving step-by-step guidance.The window onto the AR world can be a smart phone or special video glasses. But in ten years’ time these will have been replaced by contact lenses(隐形眼镜) with tiny LEDs, which present something at a readable distance in front of eyes. So a deaf person wearing these lenses will be able to see what people are saying.The question is, while we are all absorbed in our new augmented reality world, how willwe be communicating with each other?12. What is the text mainly about?A. The relationship between reality 1.0 and reality 2.0.B. Different forms of the AR technology.C. The next information technology revolution.D. The popularity of the AR technology.13. Which of the following will AR technology support according to the text?A. To pay for things online conveniently.B. To play online games merrily.C. To offer information efficiently.D. To communicate with others socially.14. What are Contact lenses with tiny LEDs used for?A. Show texts and images.B. Protect people’s eyes.C. Help deaf people communicate.D. Replace smart phone.15. What’s the author’s attitude towards the AR technology?A. Indifferent.B. Critical.C. Concerned.D. Favourable.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。

广东省湛江市徐闻县徐闻中学2020年高二化学上学期期末试题含解析

广东省湛江市徐闻县徐闻中学2020年高二化学上学期期末试题含解析一、单选题（本大题共15个小题，每小题4分。

在每小题给出的四个选项中，只有一项符合题目要求，共60分。

）1. 下列操作会导致实验结果偏高的是A．中和热测定实验中，用铜制环形搅拌器代替环形玻璃搅拌棒，所测中和热的数值B．用托盘天平称10.5g某物质，砝码和药品的位置放反，所称药品的质量C．配制一定物质的量浓度溶液，定容时仰视容量瓶读数，所配溶液的浓度D．配制一定物质的量浓度溶液时，用量筒量取浓溶液的体积时仰视读数，所配溶液的浓度参考答案：D略2. 下列化学式中只能表示一种物质的是（）A.C3H7ClB.CH2Cl2C.C2H6OD.C2H4O2参考答案：B略3. 下列反应中，改变反应物的用量或浓度，不会改变生成物的是( )A．铜和硝酸反应 B．二氧化碳通入氢氧化钠溶液中C．细铁丝在氯气中燃烧 D．氯化铝与氢氧化钠溶液反应参考答案：C【ks5u解析】A．铜和浓硝酸反应生成二氧化氮，和稀硝酸反应生成一氧化氮，所以和反应物的浓度有关，故A不选；B．少量二氧化碳通入氢氧化钠溶液中生成碳酸钠，过量二氧化碳通入氢氧化钠溶液生成碳酸氢钠，所以和反应物的用量有关，故B不选；C．细铁丝在氯气中燃烧 ,无论氯气是否过量都生成氯化铁，所以与反应物的用量无关，故C选；D．NaOH溶液和AlCl3溶液反应产物与反应物的量有关，氯化铝与少量氢氧化钠反应生成氢氧化铝，与过量氢氧化钠反应生成偏铝酸钠，故D不选；故选C.4. 下列叙述正确的是( )A．95 ℃纯水的pH<7，说明加热可导致水呈酸性B．pH＝3的醋酸溶液，稀释至10倍后pH＝4C．0.2 mol·L－1的盐酸，与等体积水混合后pH＝1D．pH＝3的醋酸溶液，与pH＝11的氢氧化钠溶液等体积混合后pH＝7参考答案：C略5. 某碱性蓄电池在充电和放电时发生的反应为Fe＋NiO2＋2H2O Fe(OH)2＋Ni(OH)2，下列说法中正确的是()A．放电时，负极上发生反应的物质是Fe B．放电时，正极反应是NiO2＋2e－＋2H＋===Ni(OH)2 C．充电时，阴极反应是Ni(OH)2－2e－＋2OH－===NiO2＋2H2O D．充电时，阳极附近pH增大参考答案：A略6. 某实验小组领取下列仪器（或用品）：铁架台（带铁夹、铁圈）、三角架、石棉网、烧杯、漏斗、分液漏斗、酒精灯、玻璃棒、量筒、蒸发皿、烧杯、火柴。

2020年湛江市徐闻县徐闻中学高三生物模拟试卷及答案解析

2020年湛江市徐闻县徐闻中学高三生物模拟试卷及答案解析一、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. 小明为了证明肾上腺素和胰高血糖素均有升高血糖浓度的作用，分别选取若干只生理状态相同的健康小白鼠（血糖浓度均为0．9g/L）均分三组，编号A、B、C，分别同时注射少量且等量的肾上腺素、胰高血糖素和生理盐水，实验结果如图所示。

据图分析正确的是（）A. 血糖浓度的相对稳定由肾上腺素和胰高血糖素共同维持B. 实验过程中，1h后A组上升，B组下降说明肾上腺素与胰高血糖素是拮抗关系C. 实验过程中，1h内胰高血糖素升高血糖效果比肾上腺素明显D. 仅进行A、B组实验相互对照即可证明肾上腺素和胰高血糖素存在升高血糖的作用2. 下列关于人类遗传病的叙述，正确的是A．母亲患糖元沉积病Ⅰ型，则其儿子必患该病B．通过染色体组型分析可确定胎儿是否患乙型血友病C．外耳道多毛症患者产生的精子可能不含该致病基因D．蚕豆病患者的苯丙氨酸羟化酶有缺陷，患者进食蚕豆会发病3. 炎性甲亢是由于甲状腺滤泡细胞膜通透性发生改变，导致滤泡细胞中的甲状腺激素大量释放进入血液，从而引起机体内甲状腺激素含量明显升高的一种疾病。

下列有关叙述正确的是（）A.正常情况下，甲状腺的分泌活动直接受到下丘脑的控制B.甲状腺激素作用的靶细胞比促甲状腺激素作用的靶细胞数量多C.炎性甲亢患者血液中促甲状腺激素释放激素的含量比正常人高D.炎性甲亢患者体内细胞代谢旺盛，导致体重在短时间内增加4. 模型建构是研究生物学问题常用的方法，模型X→A→Y中，A代表结构，X代表物质，Y代表A接受X 后的变化或产物。

下列有关描述正确的是（）A. 若A表示在光照等适宜条件下的叶肉细胞，X表示H218O，则Y中含18O的物质可能是葡萄糖B. 若A表示垂体，Y表示促甲状腺激素，则X只能是促甲状腺激素释放激素C. 若A表示B淋巴细胞，Y表示记忆细胞和浆细胞，则X表示抗原D. 若A表示人的红细胞，X表示葡萄糖，则Y表示酒精和二氧化碳5. 下列有关水盐平衡调节的叙述正确的是（）A. 缺水会引起垂体后叶合成的抗利尿激素增多，促进对水分的重吸收B. 人体大量失水时，血浆渗透压降低，排尿量减少C. 当正常人血钠升高或血钾降低时，肾上腺皮质分泌的醛固酮增加D. 机体水盐平衡的维持受神经调节和体液调节的共同调节6. 关于温度对酶活性的影响，下列叙述错误的是( )A. 实验过程中，应将酶与底物分别保温后再混合B.0Ⅰ左右低温降低酶活性，但其空间结构保持稳定C. 超过酶的最适温度，酶将因为肽键被破坏而逐渐失活D. 从生活在热泉生态系统中的生物体内最可能找到耐高温的酶7. 血友病是伴X染色体隐性遗传疾病。

2020届湛江市徐闻县徐闻中学高三英语上学期期末试卷及参考答案

2020届湛江市徐闻县徐闻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AThe Origins of Famous BrandsOur lives are full of brand names and trademarked products that we use every day. Although many brand names are simple acronyms(首字母缩略词) or versions of their founders names, some of the companies we trust every day actually have fascinating and surprising back stories.StarbucksIt seems fitting that the most famous coffee brand in the world would take its name from one of the world’s greatest works of literature. The inspiration for the name of the coffeehouse came from Herman Melville’sMoby Dick. The founders’ original idea was to name the company after the Captain Ahab’s ship, but they eventually decided that Pequot wasn’t a great name for coffee, so they chose Ahab’s first mate, Starbucks, as the name instead.GoogleGoogle was originally called Backrub, for it searched for links in every corner of the Web. In 1997, when the founders of the company were searching for a new name showing a huge amount of data for their rapidly improving search technology, a friend suggested the word “googol”. When a friend tried to register the new domain (域) name, he misspelled “googol” as “google”.NikeOriginally founded as a distributor for Japanese running shoes, the company was originally named BRS, or Blue Ribbon Sports. In 1971, BRS introduced its own soccer shoe, a model called Nike, which is alsothe name for the Greek goddess of victory. In 1978, the company officially renamed itself as Nike, Inc.The right name is essential to a company’s success, and a great origin story is just as important as a great product. An attractive origin story is one more thing that keeps customers guessing, wondering, and buying its products.1. What is the name of the Captain Ahab’s ship?A. Moby Dick.B. Starbucks.C. Pequot.D. Herman Melville.2. Why did the founders of the Google want to change its name?A. They mistook their name.B. They wanted new customers.C. The company’s original name was too long.D. The company’s search technology was improving rapidly.3. Where does the importance of the origin story of one company lie in?A. It can change the company’s image.B. It can add myth to the company.C. It explains the development of the company to customers.D. It makes customers imagine and purchase its goods.BPablo Picasso was born on October25 inMalaga. Spain in 1881. Taking after his father, Picasso shared apassion（热爱）for painting and art. Even though he wasn't the best student in school, Picasso excelled at drawing. Noticing his amazing talent, Picasso's father, an artist, taught him everything he knew. Before long, Picasso could paint and draw much better than his father. With this rich talent, Picasso paid less and less attention to his schoolwork and spent the majority of his day sketching and drawing in notepads and sketchbooks.When he was a little bit older, Picasso moved twice and was accepted into two fine art programs. However, he didn't care very much for the special techniques they taught and often wandered the streets by himself drawing the scenes around him. After moving to these two places, Picasso moved back home toBarcelonaand decided that he would develop new techniques of art and painting based on what he saw.Later, Picasso decided to move toParis,France, where he began perfecting his own techniques of painting, drawing and other forms of art. His drawings. paintings, and an included pieces about sadness, poverty, classics and self-portraits. One of his major types of work is calledcubism（立体派），which includes art with all sizes of geometric shapes together on the piece of an. This type of art is very important because no other artists had come up with the idea before. Picasso decided to try something new, and as a result, cubismis widely accepted today as a classic style of art.Picasso inspires us to always be thinking. He tells us to think outside the box and come up with fresh new ideas that can change the world. He surely plays a significant role in the art field.4. What do we know about Picasso as a student at school?A. He hated doing his homework.B. He was very proud of his talent.C. He showed great talent for drawing.D. He was often praised by his teacher.5. What did Picasso's father do when he found Picasso's gift?A. He tried his best to help Picasso.B. He blamed Picasso for his laziness.C. He asked Picasso to finish his work on time.D. He encouraged Picasso to do better at school.6. What was Picasso's attitude towards the special techniques at that time?A. He thought highly of them.B. He took no interest in them.C. He was confused about them.D. He was concerned about them.7. What does the author tell us in the last two paragraphs?A. Picasso has great faith in art.B. Picasso has changed the world a lot.C. Picasso can do anything he wants to.D. Picasso is a highly creative artist.CAn unmanned Chinese spacecraft left the earth on a trip to the planet Mars on Thursday. The launch（发射）marks the start of one of China's most important space explorations. China's national space agency launched the spacecraft called Tianwen-1 fromthe Wenchang Spacecraft Launch Center on Hainan Island.The name Tianwen means “Questions to Heaven” in Chinese. The spacecraft took off on China's largest carrier rocket, the Long March 5, and about 36 minutes later, the spacecraft, including an orbiter（轨道飞行器）and a rover（漫游车），was sent into the Earth-Mars orbit. It is expected to reach the orbit of the red planet next February. Tianwen-1 will finish three scientific goals—orbiting the red planet, landing on the Mars and sending a rover to the landing site.Tianwen-1 carries several scientific instruments to observe the planet's atmosphere and surface. It will do a series of scientific researches on the planet's soil, geological structure, environment, atmosphere and water. Besides its daily work of exploring the surface of Mars for 90 days, it will also report back to the earth about its experiences on the red planet, which is millions of miles away. According to experts, discovering signs of life willbe its first and most important scientific goal.Tianwen-1's successful landing will make China the second nation to place a spacecraft on Mars. The United States has landed eight vehicles on Mars since 1976. China will be the first to successfully orbit, land and place a vehicle in the same mission. This is China's first independent mission to Mars. The task in 2011 failed when a Russian rocket carrying a Chinese orbiter had problems after launch, and was unable to escape the Earth orbit. Last year, China's Chang e-4 spacecraft became the first to make a landing on the far side of the moon.8. When will Tianwen-1 enter the orbit of Mars?A. 36 minutes later.B. Next Thursday.C. In 90 days.D. Next February.9. What is the main task of Tianwen-1 according to experts?A. Orbiting the Mars.B. Landing on the Mars.C. Discovering signs of life.D. Sending a rover to the landing site.10. Which of the following statements is mentioned in the text?A. Tianwen-1 is the second vehicle landed on the Mars.B. The United States is the first to land vehicles on the Mars.C. Russia helped China place Tianwen-1 on the Mars.D. Chang，e-4 was the first to make a landing on the moon.11. Where can you find this article?A. In a newspaper.B. In a diary.C. In a sci-fi novel.D. In a guide book.DIt all happened one afternoon in Carl's backyard a few years ago. We had just finished playing stickball, and I was about to go home.“Wait a minute,” Carl yelled. He ran into his house and cameback with a book for me to take home and read. All he said was, “See if you like it.”I said ly nothing. I kept the book for a couple of weeks and then returned it unread. Carl never asked me if I liked it or not. During the following two years Carl lent me three more books. Each time I returned them unread.A few days after graduating from high school, Carl asked, “Benny, which college are you going to?”“I'm not going to college.” I said.“Why not?” he asked.“Because my father can't afford the tuition (学费).” I answered.“Is that it?” Carl asked. “Yes,” I said.I lied. I had no intention of going back to school now that I was out. The following day, Carl knocked on my door and handed me a check for seventy-five dollars from his father along with the bookMartin Eden.“I think that should do it.” he said.Once again I was in shock. I was working full-time in my brother's bakery. I attended two classes atWayneUniversitypart-time at night. Halfway through the semester, after receiving failing grades on exams and essays, I decided there was no way I would ever become a good student and get satisfactory grades. I dropped out of college.One day, curious, I picked up the book, thinking Carl was trying to tell me something. Despite difficulty, I pressed on. By the time I finished the book, I understood why: the main character, Martin Eden, had my own poor educational background, but managed to educate himself and become a published author.12. What do we know about the author?A. He often told lies.B. He quit school unwillingly.C. He had thought little of education before.D. He became a published author.13. What kind of person is Carl?A. Caring.B. Emotional.C. Stubborn.D. Cautious.14. What message does Carl want to convey?A. Reading makes a rich man.B. Reading is the journey of the soul.C. Reading makes a person better known.D.Readingopens up new opportunities.15. What is the best title for the text?A. A strong desire for collegeB. A wish for better educationC. A wise friendD. A wise book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届湛江市徐闻县徐闻中学高三英语月考试题及参考答案

2020届湛江市徐闻县徐闻中学高三英语月考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AFour remarkable inventionsFor more than half a century, the Consumer Electronics Show(CES) has been the place for companies and inventors to display their newest and coolest gadgets.Here are our picks for some of the most interesting and creative inventions.The Sweet Little Rolling RobotSamsung has released Ballie, a tennis-sized robot that can follow you around the house, answer your questions, and entertain your pets. Since it's equipped with a camera, it can keep an eye on your home while you're away. It's like a smart assistant that goes wherever you do, rolling into your bedroom to ring your wake-up alarm, rolling to the kitchen to turn on the toaster and giving you the weather report as you brush your teeth.The Insoles to Pick Up Your PactAny runner knows the right shoes are key to your speed. But Nurvv insoles promise more than mere cushioning. The insoles transmit data to a coaching app, which offers information on your technique and performance. It measures your foot strike and assesses your injury risk. The app then generates personalized workouts to set targets and help you beat your best speeds. Half marathon, here you come!The No-Studio-Needed Yoga ClassCan't keep up your commitment to a yoga studio membership? The Yoganotch personal yoga assistant lets you drop into a virtual class any time you want. Follow along with a set series while 3-D sensors tell you whether you need to straighten your legs a bit more. The idea it that it improves your form while reducing the risk of injury.The Dau-Enhanced GrillWhile working by sight, smell and feel, a chef may appreciate Weber's new Smart Grilling Hub. It can monitor your pork and turkey while an app gives advice about cooking technique and safe temperatures.1. What can the Sweet Little Rolling Robot do?A. Feed your pets.B. Hay tennis with you.C. Take you wherever you want.D. Assist you to do your housework.2. Which of the following is suitable for a runner?A. Ballie.B. Nurvv.C. Yoganotch.D. Smart Grilling Hub.3. What do we know about the Weber’s invention?A. It uses virtual reality.B. It is convenient for cooking.C. It makes meals for you automatically.D. It helps you do well in your yoga exercises.BDad’s comb was jade green. I heard he bought it when he married Mum, which made the comb two years older than I was. Every night, he wouldsmile, hand me the comb and say, “Be a good girl and help Daddy clean it, OK?”I was more than happy to do it. At age five this mundane task brought me such joy. I would excitedly turn the tap on, then brush the comb with a used toothbrush as hard as I could. Satisfied that I’d done a good job, I would proudly return the comb to Dad. He would smile at me and place the comb on top of his wallet.About two years later, Dad left his sales job and started his own wholesale business. I started primary school. That was when things started to change. He didn’t come home as much as he used to – just a couple of times a week. And when he did come home, it was always late and I’d already be in bed. I started to get mad. I stopped waiting for him to come home, and stopped going downstairs to check on him.Today, I’m no longer a kid. I’ve graduated from college and got a job. Dad’s business has got back on track. Things are better now. Yet the uncomfortable silence between Dad and me persisted.Two days before my birthday last year, Dad came home early. As usual, I helped him carry his bags into his study. When I turned to leave, he said, “Hey, would you like to help me clean my comb?” I looked at him a while, then took the comb and headed to the sink.I passed the clean comb back to Dad. He looked at it and smiled. But this time, I noticed something different. My dad has aged. He has wrinkles next to his eyes when he smiles, yet his smile is still as heartwarming as before. The smile of a father who just wants a good life for his family. Dad carefully placed his comb on top of his wallet.After so many years, he still organizes his personal items in the same meticulous way. I guess some things never change. And for that, I’m glad.4. What caused the uncomfortable silence between Dad and me?A. Generation gap.B. Dad’s failure in business.C. My ignorance of Dad.D. Dad’s absence from the family.5. Which of the following can best describe Dad?A. Gentle but strict.B. Hardworking and caring.C. Cautious and realistic.D. Demanding but patient.6. Why did Dad ask his daughter to clean his comb before her birthday?A. To give her a lesson.B. To follow his old habit.C. To fix their relationship.D. To praise her helpfulness.7. Which saying concludes the text best?A. Yesterday once more.B. Let bygones be bygones.C. Some things never change.D. Like father, like daughter.CRichard Campbell is a secondary school student. He is15 years old. He lives in a small town in the north ofEngland. Every morning, he gets up at eight o’clock, puts on his uniform and walks to school.One hour later, the lessons start. The students usually study maths, English, history and geography in the morning. They usually study music and drawing and they play sports after lunch. They have a ten-minute break between classes. They also spend a long time in the school library, reading books and doing their homework.Richard likes his school very much. His favourite subjects are English and geography, but he doesn’t like maths because he is not good at it.Richard and all his friends spend the whole day at school. Lunch is at one o’clock. He doesn’t like the food that the school serves. This is why he often brings a packed lunch from home. He always has his lunch in the dining hall, but some of his friends sometimes eat in the courtyard or outside the school gate.At weekends, he always goes out with his friends because he doesn’t go to school. On Saturday, he always goes to the cinema or to the sports centre. On Sunday, he just goes for a walk with his dog.8. What time do Richard’s lessons begin in the morning?A. At 8:00.B. At 8:30.C. At 9:00.D. At 9:10.9. What does Richard like best?A. Maths and English.B. English and geography.C. History and maths.D. Geography and history.10. Where does Richard have lunch on weekdays?A. In the dining hall.B. At home.C. In the courtyard.D. Outside his school gate.11. What does Richard always do on Saturday?A. He reads and does homework.B. He goes to see films or does sports.C. He walks his dog or does exercise.D. He spends a long time in the library.DIf you travel inAthens, against popular belief, I would highly recommend saving the Acropolis for your secondday. As attractive as it is to head straight to the most famous building in the city, there are several reasons why you should hold off until later.Sunriseis the best time to see the ruins, and who wants to spend their first day in anew citywaking up at6 a.m.? On top of that, the Acropolis is going to make every other site inAthensless important in comparison, so I recommend not hitting it on your first day.We got to the southeast gate at 7：30, half an hour before it opened at 8. When the gate opened, we rushed to the hill. Our plan paid off because we had the whole complex to ourselves for five minutes. In this age of overtourism, getting to the greatness of the Acropolis with nobody else around felt special and excited.The Acropolis is the name given to the complex on top of the hill, and it’s made up of several buildings. There’s theTempleofAthena Nike, the Parthenon, the Old Temple of Athena, the Legendary Olive Tree of the Pandroseion, the Porch of the Caryatids at the Erechtheion... and on your way down, the Odeon of Herodes Atticus.Something that sounds boring but isn’t is theAcropolisMuseum, and I recommend spending a couple of hours there. As someone who is a museum-avoider, I listened to the recommendations of everyone who had been, and made myself go inside. And I loved it. The museum houses tons of sculptures unearthed from the Acropolis, and it was interesting to check them out.Head toSyntagma Squarenext to watch the changing of the guard. This takes place every hour on the hour, so try to time your visit perfectly. The guards wear fun clothes and make for interesting photos.12. The author suggests visiting the Acropolis on the second day so that ___________.A. it can save visitors a lot of timeB. it can save visitors from getting up earlyC. it can make for a better travel experienceD. it can give visitors a better understanding ofAthens13. How did the author feel when he ran to the top of the hill?A. Bored.B. Worried.C. Relaxed.D. Amazed.14. With what may the author agree about theAcropolisMuseum?A. It is so great that it should be visited last.B. It is enjoyable and worth visiting.C. It wastes a lot of time.D. It should be avoided.15. What is the purpose of the text?A. To provide some advice on visiting the Acropolis.B. To introduce the history of the Acropolis.C. To call on people to protect historic sites.D. To encourage people to travel around.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。

广东省徐闻中学高二物理周测(八)单元测试

2010届高二物理周测（八）（电磁感应单元测试）满分100分时间 60分钟班级姓名一、本题共10小题；每小题5分，共50分.在每小题给出的四个选项中，有的小题只有一个选项正确，有的小题有多个选项正确，选不全的得3分，有选错或不答的得0分. 1、如图所示，A 、B 两灯相同，L 是带铁芯的电阻可不计的线圈，下列说法中正确的是（） A.开关K 合上瞬间，A 、B 两灯同时亮起来 B.K 合上稳定后，A 、B 同时亮着 C.K 断开瞬间，A 、B 同时熄灭D.K 断开瞬间，B 立即熄灭，A 过一会儿再熄灭2、如图所示，光滑固定导轨M 、N 水平放置，两根导体棒P 、Q 平行放于导轨上，形成一个闭合回路.当一条形磁铁从高处下落接近回路时，则 A.P 、Q 将相互靠拢 B.P 、Q 将彼此远离 C.磁铁的加速度为g D.磁铁的加速度小于g3、如下图所示的四个日光灯的接线图中，S 1为起动器，S 2为电键，L 为镇流器，能使日光灯正常发光的是AB DL S 2C 电键4、著名物理学家弗曼曾设计过一个实验，如图所示.线圈，并接有电源，板的四周有许多带负电的小球，整个装置支撑起来.的摩擦，当电源接通的瞬间，下列关于圆盘的说法中正确的是（） A.圆盘将逆时针转动 B.圆盘将顺时针转动 C.圆盘不会转动 D.无法确定圆盘是否会动5、平行闭合线圈的匝数为n ，所围面积为S ，总电阻为R ，在t ∆通量变化为∆Φ，则通过导线某一截面的电荷量为（）。

A ．R ∆Φ B ．R nS∆Φ C ．tR n ∆∆Φ D ．R n ∆Φ6．一环形线圈放在匀强磁场中，设在第1ｓ内磁场方向垂直于线圈平面向内，如图3甲所示．若磁感强度Ｂ随时间t 的变化关系如图3乙所示，那么在第2ｓ内，线圈中感应电流的大小和方向是 (Ａ)大小恒定，逆时针方向 (Ｂ)大小恒定，顺时针方向(Ｃ)大小逐渐增加，顺时针方向 (Ｄ)大小逐渐减小，逆时针方向7、如图9所示，粗细均匀的电阻为r 的金属圆环，放在图示的匀强磁场中，磁感强度为B ，圆环直径为l ，另一长为l ，电阻为r/2的金属棒ab 放在圆环上，接触电阻不计。

2020届湛江市徐闻县徐闻中学高三英语上学期期中考试试题及答案

2020届湛江市徐闻县徐闻中学高三英语上学期期中考试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AIt’s the time of year when we start hiking. As you pack, remember to bring your smartphone. Whether you’re going on a short walk or a long trip, there are a handful of apps that can help.MapMyHikeThis app tracks where you're hiking so you have a mapof your route at the end of the hike. It can also track other fitness information like the distance traveled, speed, pace, and even calories burned. You can save the data for your hike, so you can always access the route you look as well as track improvements to your workout. GaiaGPSYou don't always have cellphone service when hiking, but you always want to know where you are. The GaiaGPS app provides that information. Download maps of different parts of the world, and access the GaiaGPS app in the middle of even the most remote trails. The GPS function makes using the maps simple, and the app will also point to areas of interest.Backpacking ChecklistOne of the worst things is being way out on a trail only to discover you left behind something important. That's why checklists are the best. This checklist app helps you build a customized(定制的) list of things to take with you. Organize different lists based on trail lengths or requirements. Track all your essential items by weight and where you can find them.WildObsUsing WildObs, you can record your observations of plants and animals and add them to the database. You can ask the community to help you identify something and keep track of everything you've met, and most importantly, you can become a citizen scientist. By recording what you've seen with this app, you're helping scientists keep track of what's happening to the natural world.1. What can you do with MapMyHike?A. Record your walking speed.B. Design a suitable hiking route.C. Locate popular tourist attractions.D. Store the data of your daily activities.2. What is WildObs intended to do?A. To provide survival skills.B. To lead the way.C. To identify wildlife.D. To help make preparations.3. Which app is most useful before hiking?A. GaiaGPS.B. MapMyHike.C. WildObs.D. Backpacking Checklist.BIf you travel inAthens, against popular belief, I would highly recommend saving the Acropolis for your secondday. As attractive as it is to head straight to the most famous building in the city, there are several reasons why you should hold off until later.Sunriseis the best time to see the ruins, and who wants to spend their first day in anew citywaking up at6 a.m.? On top of that, the Acropolis is going to make every other site inAthensless important in comparison, so I recommend not hitting it on your first day.We got to the southeast gate at 7：30, half an hour before it opened at 8. When the gate opened, we rushed to the hill. Our plan paid off because we had the whole complex to ourselves for five minutes. In this age of overtourism, getting to the greatness of the Acropolis with nobody else around felt special and excited.The Acropolis is the name given to the complex on top of the hill, and it’s made up of several buildings. There’s theTempleofAthena Nike, the Parthenon, the Old Temple of Athena, the Legendary Olive Tree of the Pandroseion, the Porch of the Caryatids at the Erechtheion... and on your way down, the Odeon of Herodes Atticus.Something that sounds boring but isn’t is theAcropolisMuseum, and I recommend spending a couple of hours there. As someone who is a museum-avoider, I listened to the recommendations of everyone who had been, and made myself go inside. And I loved it. The museum houses tons of sculptures unearthed from the Acropolis, and it was interesting to check them out.Head toSyntagma Squarenext to watch the changing of the guard. This takes place every hour on the hour, so try to time your visit perfectly. The guards wear fun clothes and make for interesting photos.4. The author suggests visiting the Acropolis on the second day so that ___________.A. it can save visitors a lot of timeB. it can save visitors from getting up earlyC. it can make for a better travel experienceD. it can give visitors a better understanding ofAthens5. How did the author feel when he ran to the top of the hill?A. Bored.B. Worried.C. Relaxed.D. Amazed.6. With what may the author agree about theAcropolisMuseum?A. It is so great that it should be visited last.B. It is enjoyable and worth visiting.C. It wastes a lot of time.D. It should be avoided.7. What is the purpose of the text?A. To provide some advice on visiting the Acropolis.B. To introduce the history of the Acropolis.C. To call on people to protect historic sites.D. To encourage people to travel around.CAn anti-obesity program for Australian girls didn’t lead to any improvements in their diet, physical activities or body weight a year later, according to a new report.Findings from the school-based intervention (介入), which involved exercise sessions and nutrition workshops for lower-income girls, are the latest disappointment in a lot of research attempting tohead offadult obesity and the disease risks that come with it.Especially during the middle-and high-school years, girls’ physical activity reduces obviously, according to lead researcher David Lubans, from theUniversityofNewcastleinNew South Wales,Australia. He said, “In the future we need to make the programs more interesting and exciting and present information in a way that is meaningful to adolescent girl.”Lubans and his workmates conducted their study in 12 schools in low-income areas ofNew South Wales. At the start of the study, girls in both groups weighed an average of close to 130pounds, with about four in ten considered overweight. Over the next year, adolescents in the intervention group were given pedometers (计步器) to encourage walking and running and invited to nutrition workshops and regular exercise sessions during the schoolday and at lunchtime. Participation in some of those activities were less than ideal. For example, the girls went to only one-quarter of lunchtime exercise sessions, and less than one in ten completed at-home physical activity or nutrition challenges, the researchers reported. At the end of the year, girls in both groups had gained a similar amount of weight and there was no difference in their average body fat.Preventive medicine researcher Robert Klesges said that although some anti-obesity programs have helped adults lose weight, the teen population has always been a source of failure for researchers. “The common belief is: nothing works,” he said. “And we have got to get beyond that.”“We need to think outside the box,” said Klesges, who wasn’t involved in the new study. “That could include learning from what has worked in adult studies, such as giving meal replacement drinks or prepared foods to teens who have trouble making changes to their diet. Or, it could mean using a “step-care” method — rather than researchers or their doctor telling them to keep doing the same thing.” Klesges said.8. The underlined words “head off” in Paragraph 2 can best be replaced by “________”.A. damageB. defendC. preventD. affect9. The methods used in the program to stop obesity don’t include ________.A. walking and runningB. inviting them to nutrition workshopsC. joining exercise sessions regularlyD. giving meal replacement drinks10. The main reason for the failure of the anti-obesity program is probably that ________.A. the participants didn’t take an active part in itB. the program was not interesting and exciting to participantsC. the participants didn’t get extra nutrition or exercise helpD. the program didn’t pay attention to healthy exercise11. What can be inferred from the last paragraph?A. As researchers, it is important to have creative research methods.B. Researchers need to give meals or prepare foods to participants.C. Teen girls have no difficulty in making changes to their diet.D. Some ant-obesity programs have not helped adults lose weight.DNextdoor，an online social network for neighbors，says it has attracted $60 million from early backers of technology giants，Google，Amazon and Facebook.The new investment，1ed by venture firm Kleiner Perkins Caufield & Byers and investment firm Tiger Global Management，values Nextdoor at more than $500 million，said a personfamiliar with the matter.Nextdoor members make Facebook-style postings，giving or seeking recommendations for services such as babysitters and yard maintenance or local retailers and restaurants. They also post about community issues such as parking，crimeand safety，or items for sale or loan.The investment sum emphasizes the appeal of businesses that can tap into the growing use of mobile devices，as well as social networking Perhaps the best current example is Twitter，which is preparing for an initial public offering that values the company at up to about $11 billion.“We’re all spending more time with our screens，more engaged，but I think data shows we’re less connected，”said John Doerr of Kleiner Perkins，mentioning his own experience of knowing few of his neighbors. Nextdoor，with its ability to introduce neighbors to each other，helps people regain the sense of connection，he said.Early next year，Nextdoor plans to expand to Canada，followed by Great Britain，Australia，and South Africa，chief executive NiravTolia said. While Nextdoor has not yet have made any profit after two years of operations，Tolia said he is not worried.“If we look at the great companies at this stage，none of them started to monetize this early in their evolution. ”Tolia said. “It’s all about getting the product right. ”Eventually，Nextdoor plans to tap into local advertising，he said.Nextdoor is currently used in 22，527 neighborhoods across the United States，up from 5，694 a year ago. Including the latest funding round，it has raised just over $100 million.12. What attitude do the early backers of technology grant hold towards Nextdoor?A. They doubt its value.B. They think poorly of it.C. They are in favor of it.D. They are worried about it.13. What is mainly discussed about Nextdoor in Paragraph 3?A. Its members.B. Its service.C. Its value.D. Its location.14. What is the author’s purpose of mentioning Twitter in Paragraph 4?A. To support his viewpoint.B. To post an advertisement.C. To introduce a network.D. To makea public offer.15. How does Nirav Tolia feel about the future of Nextdoor?A. Curious.B. Upset.C. Cautious.D. Optimistic.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届湛江市徐闻县徐闻中学高三英语期末考试试题及答案

2020届湛江市徐闻县徐闻中学高三英语期末考试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ATheBest Placeto Camp in Each StateWashington-SecondBeach, Olympic National ParkCampers put up their tents right on the sand of thisPacific Northwestbeach. Make a campfire, photograph sunset over the sea and try to absorb this charming spot with your entire being.Alaska-Bartlett Cove Campground, Glacier (冰川) Bay National ParkIn a state full of natural riches,Glacier Bayis a wonder, home to high peaks, whales, 700 miles of coastline, and light blue glaciers that flow directly into the sea. Set within temperate rainforest along Bartlett Cove, the park's only campground is impressively green and an easy jumping-off point for boat tours.Arizona-Havasupai Campground, Havasupai ReservationGetting to Havasupai is a challenge. Permits are snatched (剥夺) up almost instantly, and even if you get one it's a 10-mile hike from the border to reach this rural campground that hugs Havasu Creek. Make the journey, however, and you're rewarded with a series of great waterfalls and natural pools.Arkansas-BuffaloNationalRiverAmerica's first national river travels 135 miles through the Ozark Mountains, winding its way over rapids, forming peaceful pools and passing rocky cliffs topped by green forest. Plan a float trip and absorb the scenery ata leisurely pace, pausing for hikes to visitLostValley's caves or the 200-foot waterfalls.1.Which state may attract people preferring glaciers?A.Alaska.B.Washington.C.Arizona.D.Arkansas.2.What makesArizonaa popular camp choice among tourists?A.The blue glaciers and green rainforests.B.The winding national river and cliffs.C.The soaring peaks and long coastline.D.The beautiful waterfalls and pools.3.What can you do when camping inArkansas?A.Take a long trip on foot.B.Visit caves and waterfalls.C.Put up a well-equipped tent.D.Enjoy a view of sunset.BTo stay healthy and fit, Chinesestudents do group exercises every day at school. Most of you probably do the same set of exercises. But some school exercises have grown popular online due to their local and innovative designs.Singing in Sichuan dialects with energetic movements and unique mask-changing is not just a Sichuan Opera performance. It’s the routine exercise for students of Mianyang Foreign Languages Experimental School in Sichuan province.“Sichuan Opera is a local opera, and it is now facing a gap in inheritance (传承). Therefore, we cooperated with Mianyang Intangible Cultural Heritage Center to create a simple and easy-to-learn Sichuan Opera exercise,” said Shen Junhua, who is in charge of organizing the school’s exercise between classes.According to Shen, this new type of exercise has been practiced since 2017 and has been popular among students. When students enroll (入学), they will spend several weeks practicing it. At present, almost all of the students and teachers have mastered it.“In fact, we had hardly heard of Sichuan Opera before teachers taught us how to do the Sichuan Opera exercise,” said Li Yangwenwen, 14, an eighth grade student who also joined the school’s Sichuan Opera club out of interest. “It’s very different from normal exercises. After practicing it, we found it very beautiful and became interested in it. Now, almost all of the students look forward to our daily exercise time and feel excited to do it.”“By combining opera with daily exercise, the daily class activity allows students to perceive and understand Sichuan Opera’s culture”, Shen said. “After years of continuous effort to spread the seeds of traditional culture, the younger generation is finally catching on.”4. What do students in Shen’s school do during the group exercise?A. They do normal exercise .B. They sing pop songs in Sichuan dialects.C. They do mask-changing in a Sichuan Opera performance.D. They combine group exercise with Sichuan Opera.5. Why do they adopt the new type of exercise?A. To attract new students to the school.B. To inherit local culture.C. To create an easy-to-learn exercise.D. To make the school’s group exercise popular.6. How do teachers and students react to the group exercise?A. Calm.B. Indifferent.C. Enthusiastic.D. Uninterested.7. What can we learn from the last paragraph?A. Shen’s continuous effort is highly praised.B. The younger generation will have a stronger body.C. The students can better understand their local culture.D. Students help to spread the seeds of traditional culture toyounger generation.CInAsia, there are special competitions where kites have complex designs and are fitted with instruments that make musical sounds as the wind blows through them. Although all kites have a similar structure (结构), they are widely different in size and shape. Kite-fighting competitions are also held, in which competitors use their kites to attack and bring down their opponents’ (对手) kites or cut their strings (线).For more than 15 years, the Big Wind Kite Factory has been giving kite-making and kite-flying classes for the children on an island inHawaii. In its kite-making lessons, students can make kites in as little as 20 minutes! Children as young as four years old can learn how to fly a kite. Jonathan Socher and his wife Daphne started the kite factory in 1980. Their kites are made of nylon (尼龙). Their designs are Hawaiian themes created by Daphne. The designs are cut out of the nylon with a hot knife that seals the edges and then fastened directly onto the kite. The kite that is used to give lessons is a regular diamond kite with a rainbow pattern. The difference between this kite and the ones they make during the lessons is that it is a two-string controllable kite. Big Wind employees fly the kite and for a few minutes show students how pulling on one line and then on the other controls the direction the kite goes in. Then the controls are given to the students.Jonathan insists that it is not necessary to make a huge impressive kite to have fun making and flying kites. Even the simplest structure can work, and can give hours of fun. Go on, give it a try!8. Which of the following is true according to the text?A. A hot knife is used to iron the nylon.B. Children never fly kites on their own in flying lessons.C. Kite strings must not be cut in kite-fighting competitions.D. Daphne designs kites for the Big Wind Kite Factory.9. What is different about the kite used for flying lessons?A. It has two strings.B. It is simple in design.C. It has a rainbow pattern.D. It is shaped like a diamond.10. According to Jonathan,what do you need to have fun with kites?A. A large kite.B. Any type of kite.C. A complex structure.D. A kite that impresses others.11. What is mainly described in the text?A. A kite factory.B. Kite-flying lessons.C. Special competitions.D. The kite-making process.DRock and pop hitmaker Jim Steinman, who wrote and composed music for Meat Loaf, Bonnie Tyler, Celine Dion, and more, died Monday in Danbury, Connecticut. He was 73. Steinman's brother Billconfirmed that the cause of death was kidney (肾) failure.A statement posted on Steinman's Facebook page read, “It's with a heavy heart that I can confirm Jim's passing. There will be much more to say in the coming hours and days as we prepare to honor this giant of a human being and his glorious legacy.”Steinman's wholly unique career found him working as a composer, lyricist, and producer for many artists in a variety of styles. According to a biography on his website, the records he's worked on have sold more than 190 million copies worldwide. He was nominated (提名) for four Grammys, and won Album of the Year for his work on Dion's 1996 smash,Falling Into You.Steinman began his career in a musical theater while in college, writing and starring in a rock musical calledThe Dream Engine, which gained the attentionof New York theatrical producer Joe Papp. After graduating, Steinman worked at the Public Theater (which was established by Papp). In 1973, Yvonne Elliman recorded Steinman's song “Happy Ending”, which became Steinman's first commercially released tune. That same year, the Public Theater staged his musicalMore Than You Deserve.One of the actors who auditioned forMore Than You Deservewas Meat Loaf, and he and Steinman soon struck up a close personal and professional relationship. The two began working on Meat Loaf's solo album,Bat Out of Hell, in the early 70s, but it wouldn't be released until 1977. It wasn't until about one year later — after Meat Loaf performed onSaturday Night Live— that the album became a hit.“There is no other songwriter ever like him,” Meat Loaf said. “I can never repay him. He has been such an influence, in fact, the biggest influence on my life, and I learned so much from him that there would be no way Icould ever repay Mr. Jim Steinman.”12. What caused Jim Steinman's death?A. A hit on the head.B. A kidney problem.C. A failed operation.D. A lack of blood supply.13. What is the correct order of the following events?a. Meat Loaf performed onSaturday Night Live.b. Jim released his first commercial tuneHappy Ending.c. Jim and Meat Loaf released the albumBat Out of Hell.d. Jim starred in a rock musical calledThe Dream Engine.e. Jim's musicalMore Than You Deservewas put on show.f. Jim won Album of the Year for his work onFalling Into You.A. dbecafB. dbcfaeC. fdcaebD. fbceda14. Why was Jim Steinman important to Meat Loaf?A. Because Jim was an extraordinary songwriter.B. Because Jim allowed him not to repay his debt.C. Because Jim was influential in the music industry.D. Because Jim gave him friendship and career support.15. What do we learn about Jim Steinman?A. He mainly focused his career on acting in musicals.B. He is a well-known and widely respected musician.C. His closest friends were Bill, Papp and Meat Loaf.D. He won four Grammys in the course of his career.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。

广东省湛江市徐闻县徐闻中学2020-2021学年高二数学理上学期期末试卷含解析

广东省湛江市徐闻县徐闻中学2020-2021学年高二数学理上学期期末试卷含解析一、选择题：本大题共10小题，每小题5分，共50分。

在每小题给出的四个选项中，只有是一个符合题目要求的1. 已知、、分别是的三个内角、、所对的边，若A= 45°,B=60°，，则等于（）A. B. C.D.参考答案：A略2. 某一批花生种子，如果每1粒发芽的概率为，那么播下3粒种子恰有2粒发芽的概率是（）A. B. C. D.参考答案：C3. 盒中装有10个乒乓球，其中6个新球，4个旧球，不放回地依次取出2个球使用，在第一次取出新球的条件下，第二次也取到新球的概率为（）A．B． C. D．参考答案：C4. 下列说法正确的是（）A、三点确定一个平面B、四边形一定是平面图形C、梯形一定是平面图形D、三条直线两两相交，则这三条直线共面参考答案：C5. 直线(t为参数) 过圆x2 +y2 -2a x+ay +=0的圆心，则圆心坐标为（）（A）（--） (B) （-）（（C）（-）(D) （）参考答案：6. 设双曲线(a＞0，b＞0)的一条渐近线与抛物线y＝x2＋1只有一个公共点，则双曲线的离心率为()A. B．5 C. D.参考答案：B略7. 若双曲线的顶点为椭圆长轴的端点，且双曲线的离心率与该椭圆的离心率的积为1，则双曲线的方程是（）A. B. C. D.参考答案：D8. 已知等差数列，若，，则该数列的公差为A．2 B． 3 C．6 D．7参考答案：B9. 正六棱柱的底面边长为4，高为6，则它的外接球的表面积为（）A． B． C． D．参考答案：C10. 不等式的解集是(A) (B){} (c){} (D)R参考答案：C二、填空题:本大题共7小题,每小题4分,共28分11. 等比数列……的第五项是____________．参考答案：4略12. 一束光线从点A（－1，1）出发，经轴反射到圆C：上的最短路径的长度是_____。

2020届湛江市徐闻县徐闻中学高三英语月考试卷及答案

2020届湛江市徐闻县徐闻中学高三英语月考试卷及答案第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AExciting Adventure Options to Choose From!BIRD WALK(Any time of year)-Join us for a private bird walk through our sanctuary(保护区）。

The Bent's grasslands, trees and woods provide great habitat(栖息地）for birds moving from one place to another, such as Warblers, Vireos, Indigo Buntings, Thrushes, Orioles, and more. This walk will be made to the members in your party.Suitable for ages 5 and upProgram Fee:$150NATURE HIKE(Any time of year)-Take a private hike with Bent of the River! Your personal guide will show you notable habitats and wildlife around the center trails. Nature is exciting and always changing, so you never know what we will find along the way! This program is ideal for people who want to enjoy beautiful scenery while hiking.Suitable for ages 8 and upProgram Fee:$150POMPERAUG RIVER EXPLORATION(June and July only)-Many fascinating creatures live in and around the Pomperaug River! During this recreational(休闲的)program, an Audubon naturalist will share the human and natural history of the river and teach you how to catch fish and animals. The Bent will supply you with necessary tools, such as nets, containers, and field guides. Once the animals are caught, we will observe and identify(确定身份)them and learn how they can help show the health of the river before we put them back to the wild.Suitable for ages 8 and upProgram Fee:$150OWL PROWL(January and February only)-Enjoy a special guided adventure in search of one of the most beloved groups of birds-owls(猫头鹰）！We will be prowling for owls on awalk through the grassland and forests in hopes of seeing one of the three owl species known to live in Connecticut: the Great-horned Owl, Barred Owl, or Eastern Screech-Owl.Evening eventSuitable for ages 10 and upProgram Fee:$2251.Which of the programs is suitable for the Browns with a girl of five years old?A.BIRD WALK.B.NATURE HIKE.C.POMPERAUG RIVER EXPLORATION.D.OWL PROWL.2.What will you do with the fish you catch in POMPERAUG RIVER EXPLORATION?A.Find out their health.B.Do a scientific research.C.Cook them as food on the table.D.Set them free back to the river.3.Whom is this text written for?A.Students.B.Teachers.C.Scientists.D.Adventurers.BIvrea is a town in the Piedmont province of northern Italy. It is known for its localcarnival（狂欢节）organized in February.The main part of the carnival is the famous Battle of the Oranges (La battaglia delle arance). The Battle includes nine teams who throw oranges at each other during three carnival days – Sunday, Monday and Tuesday.Oranges were not always used in the battle. In the middle ages people used beans. Twice a year the local feudal lord gave a pot of beans to the poor families who, as sign of rebellion, threw them out of their homes. Later beans became part of carnival as sort of “ammunition” for throwing at people passing by.It is still not known why exactly people started using oranges. It is believed that the origin for this tradition is in the mid 19th century. The legend says that local girls, standing on balconies, started to throw some oranges, together with confetti,lupins(白羽扇豆)and flowers, onto the parade carriages. The girls actually wanted to draw attention of boysin the carriages. Boys “answered” by throwing some objects back at girls. Little battle started that way.Battle of the Oranges got strict rules after the World War II. The battles are organized on town's squares. The battles are fought between teams in carriages (symbolizing local the guards of localtyrant(恶霸)) and the teams walking beside those carriages (symbolizing rebellious people of Ivrea).Oranges for the event are brought from the island of Sicily. The oranges used are of low quality, not suitable for humans. About 270,000 kilograms of oranges are used each year.The carnival ends with a silent march on the night of “Fat Tuesday”. The Carnival "general" says goodbye to everyone with the phrase "See you next Fat Thursday at 1 p.m."Special prizes are awarded to three best foot teams, three carriages drawn by two horses and three carriages drawn by four horses. Different elements are judged like for example throwing ability, fair play or decoration of carriages.4. The word "ammunition" (paragraph 3) is closest in meaning to________.A. decorationB. bulletsC. advertisementD. presents5. In Battle of the Oranges, the teams walking beside carriages act as ________.A. the Carnival generalB. the local feudal lordC. the rebellious people of IvreaD. the guards of local tyrant(暴君)6. Which of the following statements about Battle of the Oranges is NOT true?A. In the middle ages, people threw beans out of homes as a sign of rebellion.B. Girls throw oranges towards carriages in the parade to attract the attention of boys inside.C. Tons of oranges are used every year to hold the festival.D. People started to throw oranges because they are of low quality and not suitable to eat.7. What is this passage mainly about?A. A traditional activity in an Italian carnivalB. The origin of Battle of the OrangeC. How people enjoy themselves in the Orange CarnivalD. The rules of activities in carnivals in ItalyCThe air is thin and we have to rest several times on the shore hike from camp. To our left, snow-covered mountains disappear into clouds that seem almost close enough to touch. On the plain in front of us, we can just make out a herd of graceful animals. This is why we stay here.Tibetan antelopes live mainly on the plains of Tibet. Watching them move slowly across the green grass, I'm struck by their beauty. I'm also reminded of the danger they are in. They are being hunted illegally for their valuable fur.My guide is Zhaxi, a villager from Changtang. He works at the Changtang National Nature Reserve. The reserve is a safe place for the animals and plants of northwestern Tibet. To Zhaxi, protecting the wildlife is a way of life. “We're not trying to save the animals,” he says. “Actually, we're trying to save ourselves.”In the 1980s and 1990s the population of Tibetan antelopes dropped by more than 50 percent. Hunters were shooting antelopes to make money. Their living places were becoming smaller as new roads and railways werebuilt.In order to save Tibetan antelopes, the Chinese government placed them under national protection. Zhaxi and volunteers watched over the antelopes day and night to keep them safe from attacks. Bridges and gates were added to let the antelopes move easily and keep them safe from cars and trains.The measures were effective. The antelope population has recovered and in June 2015, the Tibetan antelope wasremovedfrom the endangered species list. The government, however, does not intend to stop the protection program since the threat to the Tibetan antelope has not yet disappeared. Only when we learn to exist in harmony with nature can we stop being a threat to wildlife and to our planet.8. What can we learn from Zhaxi's words in paragraph 3?A. Protecting the animals can make money.B. Protecting the animals is protecting ourselves.C. He is not fond of protecting the animals.D. The reserve is only safe for wild animals.9. What is mainly talked about in paragraph 4?A. Why hunters hunt Tibetan antelopes.B. Why antelopes' living places changed.C. Why antelopes' number dropped greatly.D. Why the 1980s and the 1990s are unusual.10. What does the underlined word “removed” in the last paragraph probably mean?A. Deleted.B. Changed.C. Migrated.D. Recognized.11. What might be the future condition of Tibetan antelopes according to the last paragraph?A. They will be over-populated.B. They will be a threat to man and other wildlife.C. They will be on the endangered species list again.D. They will be in harmony with nature and humans.DThere are many useful things we can do each day to feel better. It may take some efforts and time to make a habit of drinking 8 glasses of water daily or thinking more positively, but it is well worth it. What things do you do every day to feel better?Probably the healthiest thing you can do to feel better each day is to exercise early in the morning. You don't have to run the whole morning or spend a few hours in the gym. Even doing some easy exercise like walking, sit-ups or jumping the rope will help you feel better in no time!Again, due to our busy schedules, we don't get enough sleep each night. If you have trouble falling asleep, avoid watching TV or surfing the Internet right before bed. Also, try to make healthy bedtime snack choices anddon't drink tea or coffee too late in the day.If you drink 3 glasses of water, 4 glasses of coffee or tea and a glass of soda each day and think that you drink enough water, think again. Your body needs water (not coffee or soda!) to function properly. Aiming to drink 7-8 glasses of water each day can make you feel better.Being positive is the key to a longer life. Positive thoughts can help improve your overall heath. Life is full of stressful situations and it's hard to stay cheerful when everything goes wrong, but your positive attitude can help you solve any problem and fight any stress faster and easier. Your positive attitude is especially good for your heart health. Smile, stay positive and live a longer life!12. In the author's opinion which can benefit us most in order that we feel better?A. Sleeping enough.B. Drinking enough water.C. Thinking more positively.D. Taking morning exercise.13. Which of the following agrees with what is said in Paragraph 3?A. Drinking tea or coffee makes us sleep less.B. Drinking tea before bed makes it harder to fall asleep.C. Watching TV or surfing the Internet leads to less sleep.D. Our busy schedules cause more difficulty in falling asleep.14. Why is water necessary to our body?A. Because it can make us feel better.B. Because it can have our body work smoothly.C. Because in can do more good to our body thancoffee.D. Because it can hep avoid feeling thirsty.15. What do we need most when everything goes wrong?A. Thinking positively.B. Thinking out wise ways.C. Having a right attitude.D. Staying cheerful.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。