2020-2021高三年10月月考试卷及答案
2020-2021学年深圳市龙岗区甘李学校高三语文月考试卷及答案解析
2020-2021学年深圳市龙岗区甘李学校高三语文月考试卷及答案解析一、现代文阅读（36分）(一)现代文阅读I(9分)阅读下面的文本，完成下列各题。
病人①每天下午，她都准时来到医院大门口左侧的台阶上，铺下一张报纸，静静地坐在那儿看书。
那是一本很厚的书。
她的面前是一个花坛，红色的郁金香正在灿烂地开放。
在她若有所思的时候，能看到她的那双大眼睛，平静而且清澈。
虽然病号服并不合体，但并不能掩盖住她典雅的气质。
②她很友善，每当有人找她问事的时候，她表现得非常耐心。
我想，她有可能是位教师或幼儿园阿姨。
③起风了，她轻轻地合上那本书，又整整齐齐把那张报纸叠好，转身走进了大楼。
④楼内的人渐渐多了起来，这个点有上班的，也有下班的，正好又是探视的日子。
电梯刚停下，人们争着拥了进去。
电梯马上就有了反应，发出“受不了”的报警声，最后上来的人没有下去的意思，她就从中间挤了出来，等下一趟。
⑤下一趟人照样很多，不过还好，电梯没有报警，人们纷纷选择自己要去的楼层数。
有个农民模样的大伯触动数字7的时候，那数字就是不亮。
他有些着急，还有些紧张。
一遍一遍地摁。
但没有人告诉他为什么。
她发现后，急忙说：“大伯，这部电梯双层停。
”大伯仍然没有明白过来什么是“双层停”。
说话间已经到了8层。
大伯不知道该怎么办，不肯下。
她非常客气地对电梯内的人说：“请等我一下，我把他送到楼梯口。
”她让大伯从8层走到7层。
其实楼梯离电梯也就四五步远，她很快就回来了，电梯内的不少人只是表情严肃，并没有说什么。
当然，肯定有人心里会想：这人真多事。
⑥电梯慢慢上行，一位手捧花篮的小伙子自言自语：“口腔科病房是不是在12层？”她主动接过来说：“是的，往左拐。
”⑦电梯到了14层，一位急忙下电梯的姑娘不小心丢下了插在塑料袋里的一枝玫瑰。
塑料袋里有几盒营养品，但只有这一枝玫瑰。
这时电梯门将要关上，她迅速触动开门钮并捡起那枝玫瑰，她还没有说完“请等我一下”就跨出了电梯，她一定想把那枝玫瑰还给那位姑娘。
2020-2021学年成都石室佳兴外国语学校高三英语月考试卷及答案解析
2020-2021学年成都石室佳兴外国语学校高三英语月考试卷及答案解析第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项ACome and enjoy Vivaldi's TheFour Seasonsperformed by live musicians!Tickets△Zone A Sating (Excellent Visibility, $75)△Zone B Seating (Great Visibility, $60)△Zone C Seating (Good Visibility, $45)△Zone D Seating (Restricted Visibility, 30)Zone A and Zone B audiences will get the chance to take pictures with the performers on the stage after the show.Highlights* A beautiful venue bathed in candlelight.*Classical music performance by the Angel Strings quartet*A safe and socially-distanced event, ensuring you are comfortable and at ease.General Info*Dates and times: Various dates, at 6:30 pm and 8:30 pm (select during purchase).*How long: 65 minutes. Doors open 45 minutes before the start time. We recommend you arrive at least 30 minutes before the start of the event, as late entry is not permitted.*Where: Events on Oxlade*Age requirement: Must be 8 years old or older to attend. Anyone under the age of 16 must be accompanied by an adult.*Please note: The 6:30 pm seating will take place during daylight hours outdoors, and the space will not be that dark. In the case of rain, the event will be moved to the indoor area of the venue.DescriptionWhether you're looking for a beautifully unique classical music performance or a romantic candlelit experience, this performance is for you. You don't need to know all things about Vivaldi to enjoy the evening;simply sit back and admire the wonderful atmosphere and the pieces you'll hear.Join our musicians for an evening under the stars, and prepare to be taken into the clouds with Vivaldi' s most treasured masterpieces!1.What can someone with a $45 ticket do?A.Perform on the stage.B.Enjoy good visibility.C.Select a seat in Zone B.D.Take photos with the musicians.2.What should potential audiences keep in mind?A.Arrive at the venue on time.B.Learn about Vivaldi in advance.C.The performance lasts 45 minutes.D.The event will be canceled if it rains.3.What do we know about the 8:30 p.m. performance?A.It welcomes children under the age of 8.B.Its performers differ on different dates.C.Its stage will be decorated with candles.D.It will be shown in the indoor area of the venue.BLosing your ability to think and remember is pretty frightening. We know the risk of dementia (痴呆症) increases with age. But if you have memory slips you probably needn’t worry. There are pretty clear differences between signs of dementia and age-related memory loss.After age 50, it’s quite common to have trouble remembering the namesof people, places and things quickly, says Dr. Kirk Daffner of Brigham and Women’s Hospital inBoston.The brain ages just like the rest of the body. Certain parts become smaller, especially areas in the brain that are important to learning, memory and planning. Changes in brain cells can affect communication between different regions of the brain. And blood flow can be reduced as blood vessels narrow.Forgetting the name of an actor in a favorite movie, for example, is nothing to worry about. But if you forget the plot of the movie or don’t remember even seeing it, that’s far more concerning, Daffner says.When you forget entire experiences, he says, that’s “a red flag that something more serious may be involved”. Forgetting how to operate a familiar object like a microwave oven, or forgetting how to drive to the house of a friend you’ve visited many times before can also be signs of something going wrongBut even then, Daffner says, people shouldn’t panic. There are many things that can cause confusion andmemory loss, including health problems like temporary stoppage of breathing during sleep, high bloodpressure, or depression, as well as medications (药物) like antidepressants.You don’t have to figure this out on your own. Daffner suggests going to your doctor to check on medications, health problems and other issues that could be affecting memory. And the best defense against memory loss is to try to prevent it by building up your brain’s cognitive(认知的) reserve, Daffner says.“Read books, go to movies, take on new hobbies or activities that force one to think in novel ways, ” he says. In other words, keep your brain busy and working. And also get physically active, because exercise is a known brain booster4. Why does the author say that one needn’t be concerned about memory slips?A. Not all of them are related to one’s age.B. Not all of them are symptoms of dementia.C. They occur only among certain groups of people.D. They are quite common among fifty-year-old people.5. Which memory-related symptom should people take seriouslyA. Totally forgetting how to do one’s daily routines.B. Inability to recall details of one’s life experiencesC. Failure to remember the names of movies or actorsD. Occasionally confusing the addresses of one’s friends.6. What should people do when signs of serious memory loss show up?A. Check the brain’s cognitive reserve.B. Stop medications affecting memory.C. Turn to a professional for assistance.D. Exercise to improve their well-being7. What is Dr. Daffner’s advice forfight against memory loss?A. Having regular physical and mental checkups.B. Taking medicine that helps boost one’s brain.C. Engaging in known memory repair activities.D. Staying active both physically and mentallyCIn the natural habitat, a binge-watcher is a strange sub-species of modern human beings. They are alone and are often found lying on their bed or sofa, still as a rock, looking searchingly into their laptop or at the TV. Theyrarely get up, only taking occasional breaks for those urgent calls of nature. Unlike so many others of their species, they don’t sleep at the end of every day. They stay up late and are often found to have red eyes.This, of course, is a little bit exaggerated, but for many of us, binge-watching a show is how we consume our entertainment. With streaming services bringing seemingly endless content to the tips of our finger, creatorstailortheir shows to our needs and tastes, while their marketing team sells it to us as the next most bingeable show. I can’t help but wonder if this way of consuming television does us any good.We’re advised to get 7 to 8 hours of sleep per day, but staying up all night to finish shows like ‘Breaking Bad’ and ‘The Fall’, which Netflix says are binged the fastest, won’t result in 8 hours of uninterrupted sleep. Netflix’s CEO Richard Hastings told analysts at a conference, “Think about it… when you watch a show from Netflix and you get addicted to it, you stay up late at night. We’re competing with sleep.” And it isn’t only the amount of sleep we get; the quality matters too! A study published in the Journal for Clinical Sleep Medicine reported that those who binged television more often were found to have poorer sleep quality. The mental arousal we get from watching TV doesn’t lend itself to peaceful sleep.Besides, binging TV can cause weight gain. For every extra hour of TV watched, there was a 2% increase in the prevalence of obesity, according to a study conducted by Harvard that linked TV watching to obesity in children and adolescents.While it is true that there’s growing evidence that binging isn’t good for us, the results aren’t all hopeless. Binging, occasionally, might have some benefits. For many people, binging is a good way to socialize. It gives people something to talk about at parties and with their friends. Fans of popular shows often hold viewing parties where people can binge-watch shows together and then discuss what they just experienced! This interaction can create a sense of community for many.For others, binging might just be relaxing. After a long day, a few hours of Friends—still one of the most popular shows on any streaming platform—can ease the stress of a long day. A study followed 240 people through their binging and recorded their stress hormones. They noted for some people that their stress hormone levels decreased during their binging experience.With binging, there is not a “good” or “bad” answer. Like many things, the key is moderation. Watching TV can be relaxing, but only if it doesn’t stop you from exercising, taking care of your health, and fulfilling your social responsibilities.8. What does the underlined word “tailor” in Paragraph 2 probably mean?A. Study.B. Sell.C. Adjust.D. Promote.9. What can we learn from the passage?A. The amount of sleep matters more than the quality.B. There’s no real harm in binge-watching a TV series.C. Binging may help keep stress hormone levels stable.D. Binge-watching may help increase social connections.10. What is the author’s attitude towards binge-watching?A. Supportive.B. Unconcerned.C. ObjectiveD. Doubtful.11. Which of the following would be the best title for the passage?A. Who Is to Blame for Binge-Watching?B. Is Binge-Watching Good or Bad for You?C. Is Binge-Watching Getting out of Control?D. HowDoes Binge-Watching Affect Your Life?DAlthough computer technology is often necessary today, using a pen or pencil activates more areas of your brain than a keyboard does. You can potentially remember more by handwriting, according to a new study.The potential benefits of handwriting for memory have been debated for some time. The new study set out to answer one question: How does handwriting compare to using a keyboard when it comes to remembering new information?In all,24 participants took part. Researchers asked each of them to write with a pen and then each was also asked to type on a keyboard. While performing these tasks, each volunteer wore a cap that held electrodes next to their head. It looked somewhat like a hair net fitted with 256 sensors. Those sensors recorded the participants' brainwaves. The electrodes noted which parts of the brain turned on during each task. And they showed that writing turned on memory areas in the brain while typing didn't.Audrey van der Meer, the new study's leader, says this suggests that when we write by hand, we remember better. “This is because writing involves complex movements that activate more areas of the brain. The increased brain activity gives the brain more ‘hooks’ to hang your memories on,” she explains. Van der Meer also points out that writing by hand is related to visual notetaking. “Rather than typing blindly, the visual notetaker has to think about what is important to write down. Then, key words can be interlinked by boxes, arrows and small drawings,”she adds.This study does not recommend banning digital devices. In fact, its authors point out, computers and other devices with keyboards have become necessary in modern society. Keyboarding can especially benefit those with certain special needs (such as if they have trouble using their hands) and typing beats writing when it comes to speed, they add.12. Why were participants asked to wear caps in the study?A. To record their brainwavesB. To inform them of their tasksC. To allow them to focus on writingD. To protect their heads like hair nets13. What does Audrey van der Meer try to explain?A. Why handwriting is more complex than typingB. Why the brain works when it comes to learningC. Why handwriting helps remember informationD. Why key words are helpful to visual notetaking14. What is the study's authors' view on typing?A. It relieves people's handsB. It remains vital and helpfulC. It is not worth recommendingD. It is more challenging than writing15. Which of the following can be a suitable title for the text?A. How Can You Remember New Information?B. Handwriting Benefits Health in the LongRunC. Should Typing Take the Place of Handwriting?D. Handwriting Is Better for Memory Than Typing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。
2020-2021学年北京市丰台二中高三语文月考试卷及答案解析
2020-2021学年北京市丰台二中高三语文月考试卷及答案解析一、现代文阅读（36分）(一)现代文阅读I(9分)阅读下面的文字，完成下面小题。
老人与海(节选)海明威他们航行得很顺利，老人把双手浸在海水里，尽量保持头脑清醒。
天空中的积云堆叠得很高，上方还有相当多的卷云，由此老人知道这风会刮上整整一夜。
老人不时地看看那条鱼，以确信这是真的。
一个小时后，第一条鲨鱼发动了袭击。
这条鲨鱼的出现并不是一个偶然。
当那一大片暗沉沉的血渐渐下沉，扩散到一英里深的海水里的时候，它就从深处游了上来。
鲨鱼莽莽撞撞地--下子冲过来，划破了蓝色的水面，豁然出现在太阳底下。
它随即又落入海水，捕捉到血腥味。
然后就顺着小船和鱼的踪迹一路追踪而来。
鲨鱼有时候嗅不到这股气味，但它总能再次找到，也许只是一丝痕迹，它就会游得飞快，紧追上去。
那是一条很大的灰鯖鲨，生就的游泳高手，能和海里速度最快的鱼游得一样快，除了嘴以外，它的一切都显得无比美丽。
背部和剑鱼一样蓝，肚子是银白色的，鱼皮光滑漂亮。
它的外形和剑鱼十分相像，除了那张大嘴。
眼下它正紧闭着大嘴，在水面之下迅速地游着，高耸的背鳍像刀子一般划破水面，没有丝毫摇摆。
在它那紧紧闭合的双唇里，八排牙齿全都朝里倾斜，这和大多数鲨鱼的牙齿不同，不是那种常见的金字塔形，而是像爪子一样蜷曲起来的人的手指。
那些牙齿几乎和老人的手指一般长，两侧都有刀片一样锋利的切口。
这种鱼天生就把海里所有的鱼作为捕食对象，它们游得那么快，体格那么强健，而且还全副武装，这样一来就所向无敌了。
此时，它闻到了新鲜的血腥味，于是加快速度，蓝色的背鳍破水前进。
老人一看见它游过来，就知道这是一条毫无畏惧、肆意妄为的鲨鱼。
他一面注视着鲨鱼游到近前，一面准备好渔叉，系紧绳子。
绳子短了点儿，因为他割下了一段用来绑鱼。
老人此时头脑清醒好使，下定决心搏击一番，但却不抱什么希望。
真是好景不长啊，他想。
他盯着那条紧逼而来的鲨鱼，顺便朝那条大鱼望了一眼。
2024-2025学叶集皖西当代中学年高三数学上学期10月考试卷及答案解析
叶集皖西当代中学高三年级10月月考数学本试卷共4页.全卷满分150分，考试时间120分钟.注意事项：1.答题前，考生务必将自己的姓名､准考证号填写在答题卡上.2.回答选择题时，选出每小题答案后，用铅笔把答题卡上对应题目的答案标号涂黑.如需改动，用橡皮擦干净后，再选涂其它答案标号.回答非选择题时，将答案写在答题卡上，写在本试卷上无效.3.考试结束后，将本试卷和答题卡一并交回.一､选择题：本题共8小题，每小题5分，共40分.在每小题给出的四个选项中，只有一项是符合题目要求的.1. 已知集合{}220A x x x =Î-++³N ∣，则满足AB A =U 的集合B 的个数为（）A. 4B. 8C. 16D. 32【答案】B 【解析】【分析】先求出集合A ，结合A B A =U 可得B A Í，进而结合子集的定义求解即可.【详解】因为{}{}{}220120,1,2A x x x x x =Î-++³=Î-££=NN ∣∣，若A B A =U ，则B A Í，所以满足A B A =U 的集合B 的个数为328=.故选：B.2. 已知函数()()()1ln 1f x f x x ¢=+-，则()1f ¢的值为（ ）A. 1 B. 1- C. 2D. 2-【答案】D 【解析】【分析】借助导数公式计算即可得.【详解】()()111f f x x ¢¢=-+，则()()1112f f ¢¢=-，解得()12f ¢=-.故选：D.3. 已知ABC V 的内角A B C ，，的对边分别是a b c ，，，则“2220a b c +-<”是“ABC V 是钝角三角形”的（ ）A. 充分不必要条件 B. 必要不充分条件C. 充要条件 D. 既不充分也不必要条件【答案】A 【解析】【分析】由2220a b c +-<结合余弦定理求出cos 0C <，求出C 为钝角，充分性得证，再举出反例推出必要性不成立.【详解】2220a b c +-<，由余弦定理得：222cos 02a b c C ab+-=<，即C 为钝角，故充分性成立，若钝角三角形中B 为钝角，则C 为锐角，cos 0C >，即有2220a b c +->，故必要性不成立.故选：A.4. 函数21ln 12y x x =-+的图象大致为（ ）A. B.C. D.【答案】A 【解析】【分析】判断函数在0x >时单调性以及最值情况，结合函数奇偶性，即可额判断出答案.【详解】当0x >时，21ln 12y x x =-+，则211x y x x x-¢=-=，当01x <<时，0¢>y ，则21ln 12y x x =-+在(01),上单调递增；当1x >时，0¢<y ，则21ln 12y x x =-+在(1,)+¥上单调递减，故当1x =时，函数21ln 12y x x =-+取得极大值也是最大值12；又21ln 12y x x =-+定义域为()(),00,-¥+¥U ，满足()2211ln 1ln 122x x x x ---+=-+，故函数为偶函数，结合选项可知，只有A 中图象符合题意，故选：A5. 如图，为了测量河对岸两点,C D 间的距离，现在沿岸相距2km 的两点,A B 处分别测得105,60,45,60BAC BAD ABC ABD Ð=Ð=Ð=Ð=o o o o ，则,C D 间的距离为（ ）A.B.C. 2kmD. 【答案】C 【解析】【分析】在ABC V 和ABD △中应用正弦定理求得BC 与BD ，然后在BCD △中应用余弦定理求得CD .【详解】在ABC V 中，由正弦定理得sin sin BC ABBAC ACB=ÐÐ，即()2sin105sin 18010545BC °°°°=--，得4sin1054sin 75BC °°==，在ABD △中，60ABD BAD °Ð=Ð=，ABD △是等边三角形，2BD AB ==，在BCD △中，15DBC °Ð=，由余弦定理，22222cos 16sin 75424sin 752cos15CD BC BD BC BD DBC °°°=+-×Ð=+-´´´216sin 75424sin 752sin 754°°°=+-´´´=，所以2CD =．故选：C.6. 设124log 2,e ,cos2a b c -===，则（ ）A. a b c <<B. b a c <<C. c a b <<D. c b a<<【答案】C 【解析】【分析】令()e xf x x =-，0x <，利用导数证明e 1xx >+，可得121e2->，再根据三角函数定义可得0c <，得解.【详解】41log 22=Q ，12e 0->，令()e xf x x =-，0x <，则()e 10xf x =¢-<，所以函数()f x 在(),0¥-上单调递减，∴f (x )>f (0)，即e 1x x ->，则e 1x x >+，1211e122-\>-+=，0b a \>>，又π2,π2æöÎç÷èø，cos 20\<，即0c <，c a b \<<.故选：C.7. 已知函数()()lg 1,011,02x x x f x x ì-+<ï=íæö+³ïç÷èøî，则函数()()232y f x f x =-+的零点个数是（ ）A. 6B. 5C. 4D. 3【答案】C 【解析】【分析】将函数()()232y fx f x =-+的零点个数转化为方程()1f x =和()2f x =根的个数，然后再转化为函数()f x 与1y =，2y =图象交点个数，最后结合图象判断即可.【详解】函数()()()()23212y fx f x f x f x éùéù=-+=--ëûëû的零点，即方程()1f x =和()2f x =的根，函数()()lg 1,011,02x x x f x x ì-+<ï=íæö+³ïç÷èøî的图象，如下图所示：由图可得方程()1f x =和()2f x =的根，共有4个根，即函数()()2231y f x f x =-+有4个零点．故选：C ．8. 记n S 为等比数列{}n a 的前n 项和，若425S S =，621S =，则8S =（ ）A. 120- B. 85- C. 85 D. 120【答案】C 【解析】【分析】根据题意，设等比数列{}n a 的公比为q ，分2种情况讨论1q =、1q ¹，结合等比数列前 n 项和公式分析可得24q =，1113a q =--，计算即可得答案.【详解】根据题意，设等比数列{}n a 的公比为q ，若425S S =，则1q ¹，则有()()421115111a q a q qq--=-- ，变形可得24q =，则()23664q q ==，又由()61161632111a q aS qq-==-=--，则有1113a q =--，所以()()()()12481811125585113a q a q S qq--===-´-=--.故选：C.二､多选题：本题共3小题，每小题6分，共18分.在每小题给出的选项中，有多项符合题目要求.全部选对的得6分，部分选对的得部分分，有选错的得0分.9. 已知等差数列{}n a 的前n 项和为36,6,15n S S S =-=，则（ ）A. 数列{}n a 是递增数列B. 数列n S n ìüíýîþ是递增数列C. 数列{}n S 中的最小项为3S D. 232,,,n n n n n S S S S S --L 成等差数列，且公差为23n 【答案】ABD 【解析】【分析】根据题意可求得153a d =-ìí=î，可判断A 正确，再由3132n S n n -=可知B 正确，利用前n 项和n S 的表达式以及二次函数性质可得C 错误，再由前n 项和性质可得D 正确.【详解】设等差数列{}n a 的首项为1a ，公差为d ；由366,15S S =-=可得1133661515a d a d +=-ìí+=î，解得153a d =-ìí=î，由等差数列性质可得当30d =>时，数列{}n a 是递增数列，即A 正确；依题意可得()21131322n n n n nS na d --=+=，所以3132n S n n -=，因此可得()13113313301222n n n S Sn n n ++---=-=>+，即B 正确；由2221313169333133612222n n n n n n S æöæö---ç÷ç÷-èøèø===，由二次函数性质以及*N n Î可得，当2n =时，27S =-，所以C 错误；易知12n n S a a a =++×××+，则212122n n n n n S a a a a a a ++=++×××++++×××+，因此221221212n n n n n n n S S a a a a nd a nd a nd a a a n d ++-=++×××+=++++×××++=++×××++，即可得22n n n S S S n d -=+，也即()2223n n n S S S n d n --==，同理可得232212231222n n n n n n n n n n S S a a a a nd a nd a nd S S n d ++++-=++×××+=++++×××++=-+，即()()223223n n n n S S S S n d n ---==，因此232,,,n n n n n S S S S S --L 成等差数列，且公差为23n ，即D 正确.故选：ABD10. 已知函数()()sin 2(0π)f x x j j =+<<，曲线()y f x =关于点7π,012æö-ç÷èø中心对称，则（ ）A. 将该函数向左平移π6个单位得到一个奇函数B. ()f x 在3π7π,46æöç÷èø上单调递增C. ()f x 在π7π,1212æö-ç÷èø上只有一个极值点D 曲线()y f x ¢=关于直线π6x =对称【答案】BC 【解析】【分析】因为函数()f x 关于点7π,012æö-ç÷èø中心对称可得j ，从而得到()πsin 26f x x æö=+ç÷èø，根据三角函数的图象平移规律可判断A ；根据x 的范围得到π26x +，再由正弦函数的单调性可判断B ；求出()f x 的单调区间可判断C ，求出()y f x ¢=代入π6x =可判断D.【详解】因为函数()()sin 2(0π)f x x j j =+<<关于点7π,012æö-ç÷èø中心对称， 所以()7π7πsin 2sin 0126j j æöæö=-´+=-+=ç÷ç÷èøèøf x ，()7ππ6k k j -+=ÎZ ，所以()7π+π6k k j =ÎZ ，而0πj <<，所以π6j =，()πsin 26f x x æö=+ç÷èø，对于A ，将该函数向左平移π6个单位得到()πππsin 2sin 2cos 2662éùæöæö=++=+=ç÷ç÷êúèøèøëûg x x x x ，因为x ÎR ，()()cos 2-==g x x g x ，所以()g x 为偶函数，故A 错误；对于B ， 因为3π7π,46æöÎç÷èøx ，所以π5π5πππ2,2π,2π63232æöæö+Î=-+ç÷ç÷èøèøx ，.因为sin y t =在ππ2π,2π32æö-+ç÷èø在上单调递增，所以()f x 在3π7π,46æöÎç÷èøx 上单调递增，故B 正确；对于C ， 由()πππ2π22π+262k x k k -£+£ÎZ 得()f x 的单调递增区间为()ππππ+36k x k k éù-££ÎêúëûZ ，由()ππ3π2π22π+262k x k k +£+£ÎZ 得()f x 的单调递减区间为()π2ππ,π+63k k k éù+ÎêúëûZ ，所以()f x 在ππ126æö-ç÷èø,上单调递增，在π7π,612æöç÷èø上单调递减，所以在π6x =处有一个极值点，故C 正确；对于D ， 曲线()πππ2cos 22cos 266=6¢æöæöæö++=+ç÷ç÷ç÷è¢=èøèøøy f x x x x ，π6x =时ππ2cos 20266æö´+=¹±ç÷èø，故D 错误故选：BC .11. 已知函数e x y =和ln y x =的图象与直线2y x =-交点的横坐标分别为,a b ，则（ ）A. a b < B. 2a b +=C. 1ab > D. 222a b +>【答案】ABD 【解析】【分析】利用函数e x y =和ln y x =互为反函数，确定,a b 关系，可判断AB ，结合二次函数性质判断CD ．【详解】函数e x y =和ln y x =互为反函数，它们的图象关于直线y x =对称，作出它们的图象及直线2y x =-，由直线2y x =-与直线y x =垂直，且交点为(1,1)知2a b +=，01a b <<<，因此01a <<，所以有：222222(2)2442(1)22a b a a a a a +=+-=-+=-+>，.22(2)2(1)11ab a a a a a =-=-+=--+<，正确的ABD ，错误的是C ，故选：ABD ．三､填空题：本题共3小题，每小题5分，共15分.12. 过原点作曲线x y e =的切线，则切线的方程为___________.【答案】y ex =【解析】【分析】求导得到e x y ¢=设切点为()0,x x e ，根据切线过原点，由()00000x x e f x e x -¢==-求解.【详解】因为xy e =所以e x y ¢=设切点为()00,x x e，因为切线过原点，所以()00000x x e f x e x -¢==-，解得01x =，所以()0k f x e ¢==，所以切线方程是y ex =，故答案为：y ex=【点睛】本题在考查导数的几何意义，属于基础题.13. 已知a是第二象限角，πsin 4a æö+=ç÷èø，则cos2a =__________.【答案】35-##0.6-【解析】【分析】由已知条件求出πcos 4a æö+ç÷èø，再利用ππ2242a a æö=+-ç÷èø结合诱导公式和倍角公式即可求解.【详解】由a 是第二象限角，πsin 4a æö+=ç÷π4a +也在第二象限，因此可得πcos 4a æö+==ç÷èø又ππ2242a a æö=+-ç÷èø，则ππcos 2cos 242a a éùæö=+-ç÷êúèøûπππsin 22sin cos 444a a a æöæöæö=+=++ç÷ç÷ç÷èøèøèø325æ==-ççè.故答案为：35-.14. 已知函数()()2log 41xf x x =+-，数列{}n a 是公差为2的等差数列，若()()()()112233440a f a a f a a f a a f a +++=，则n a =__________.【答案】25n -【解析】【分析】设()()g x xf x =，则有()()()()12340g a g a g a g a +++=，由()f x 的奇偶性和单调性分析可得()g x 的奇偶性和单调性，结合{a n }是公差为2的等差数列，可求出1a ，进而可求n a .【详解】由()()()()22241log 41log log 414x xxxf x x x x f x -æö+-=++=+=+-=ç÷èø，知()f x 为偶函数，当0x >时，()41041x x f x ¢-=>+知()f x 在()0,¥+单调递增且()()00f x f ³>，设()()g x xf x =，则()g x 为奇函数且在[)0,¥+单调递增，结合奇函数的对称性可得()g x 在(),¥¥-+单调递增，由题得()()()()12340g a g a g a g a +++=，又{a n }是等差数列，可得1423a a a a +=+，当140a a +>时，14a a >-，()()()144g a g a g a >-=-，()()140g a g a +>，同理()()230g a g a +>，即()()()()12340g a g a g a g a +++>，不合题意，当140a a +<时，同理可得()()()()12340g a g a g a g a +++<，也不合题意，所以140a a +=，又{a n }公差为2，可得13a =-，所以()32125n a n n =-+-=-.故答案为：25n -.【点睛】方法点睛：掌握有公共定义域的奇偶函数通过简单的加减乘除以后形成新函数的奇偶性；掌握有公共定义域的单调函数通过简单的加减乘除以后形成新函数的单调性；掌握奇函数单调性比较大小的特点，若奇函数是增函数，则有()()00a b f a f b +>Û+>.四､解答题：本题共5小题，共77分.解答应写出文字说明､证明过程或演算步骤.15. 已知公比小于1的等比数列{}n a 满足1325,12a a a +==.（1）求数列{}n a 的通项公式；（2）设2log n n b a =，求数列21211n n b b -+ìüíýîþ的前n 项和n T .【答案】（1）22nn a -=（2）21n nT n =--【解析】【分析】（1）根据等比数列通项公式基本量运算求解；（2）求出通项n b ，利用裂项相消法求和得解.【小问1详解】设数列{a n }的公比为q ，则由已知得152q q +=，解得12q =或2q =，又1q <，12q \=，22212.2n n n a a --æö\=×=ç÷èø【小问2详解】2log 2n n b a n ==-，212132,12n n b n b n -+\=-=-，()()()()21211111113212232122321n n b b n n n n n n -+æö\===-ç÷------èø，11111111111121121323522321n T n n æöæöæöæö\=-+-+-++-ç÷ç÷ç÷ç÷---èøèøèøèøL 11122121n n n æö=--=-ç÷--èø.16. 已知函数16()1x f x a a+=-+（0a >且1a ¹）是定义在R 上的奇函数.（1）求实数a 的值及函数()f x 的值域；（2）若()2(1)20f a f a-+³，求a 的取值范围.【答案】（1）3；()1,1-；（2）1,1(1,)2éöÈ+¥÷êëø.【解析】【分析】（1）先根据函数是奇函数建立方程1610a a-=+，解得3a =，再逐步判断求函数()f x 的值域；（2）先根据函数()f x 是奇函数，得到()2(1)2f a f a-³-，再根据函数()f x 是增函数，得到212a a -³-，最后结合0a >且1a ¹求实数a 的取值范围.【详解】解：（1）因为函数()f x 是定义在R 上的奇函数，所以(0)0f =，即1610a a-=+，解得3a =，所以函数的解析式：2()131xf x =-+，（x R Î），则30x >Þ311x +>Þ20231x<<+Þ22031x -<-<+Þ211131x -<-<+，故函数()f x 的值域是()1,1-.（2）因为函数的解析式2()131xf x =-+，（x R Î），所以'()0f x >所以函数()f x 是定义在R 上的增函数.因为()2(1)20f a f a-+³，所以()2(1)2f a f a -³-，因为函数()f x 是定义在R 上的奇函数，所以()2(1)2f a f a -³-，因为函数()f x 是定义在R 上的增函数，所以212a a -³-，解得1a £-或12a ³，又因0a >且1a ¹所以实数a 的取值范围是1,1(1,)2éöÈ+¥÷êëø.【点睛】本题考查根据函数是奇函数求参数的值、求函数的值域、根据函数的单调性与奇偶性求参数的取值范围，是中档题.17. 在①()22sin sin sin sin sin B C A B C -=-；②sinsin 2B C b a B +=；③πsin cos 6a B b A æö=-ç÷èø这三个条件中任选一个，补充在下面问题中并作答．问题：△ABC 的内角A ，B ，C 的对边分别为a ，b ，cb c =+，___，求A 和B ．注：若选择多个条件作答，按第一个解答计分．【答案】选择见解析；π3A =，π12B =或7π12【解析】【分析】若选择条件①，先由正弦定理和余弦定理求出角A ；若选择条件②，利用正弦定理和二倍角公式解出sin2A的值，进而得出角A ；若选择条件③，由正弦定理结合两角和与差的正弦公式可求出tan A ，进而得出角A ．2b c +=，把()πC A B =-+代入，化简求值即可；【详解】解析：选择条件①，由22(sin sin )sin sin sin B C A B C -=-及正值定理知()22b c a bc -=-，整理得222b c a bc +-=，由余弦定理可得2221cos 222b c a bc A bc bc +-===，∵()0,πA Î，∴π3A =；b c =+sin sin sin sin()A B C B A B =+=++，ππsin sin 33B B æö=++ç÷èø，整理得πsin 6B æö+=ç÷èø，∵2π0,3B æöÎç÷èø，∴ππ5π,666B æö+Îç÷èø，∴ππ64B +=或34p ，解得π12B =或7π12.选择条件②，因为πA B C ++=，所以π222B C A+=-；由sinsin 2B C b a B +=得，cos sin 2Ab a B=为由正弦定理知，sin cos sin sin 2sin cos sin 222A A AB A B B ==；又sin 0B >，cos02A >，可得1sin 22A =；又因为()0,πA Î，所以，A2=π6，故π3A =；b c =+sin sin sin sin()A B C B A B =+=++，ππsin sin 33B B æö=++ç÷èø，整理得πsin 6B æö+=ç÷èø，∵2π0,3B æöÎç÷èø，∴ππ5π,666B æö+Îç÷èø，∴ππ64B +=或34p ，解得π12B =或7π12.选择条件③，由πsin cos 6a B b A æö=-ç÷èø及正弦定理得sin sin sin cos 6A B B A p æö=-ç÷èø∵sin 0B >，∴π1sin cos sin 62A A A A æö=-=+ç÷èø，解得tan A =，∵(),πA q Î，∴π3A =；b c =+sin sin sin sin()A B C B A B =+=++，ππsin sin 33B B æö=++ç÷èø，整理得πsin 6B æö+=ç÷èø，∵2π0,3B æöÎç÷èø，∴ππ5π,666B æö+Îç÷èø，∴ππ64B +=或3π4，解得π12B =或7π12.18. 已知数列{}n a 的前n 项和为n S ，且21n n S a =-.（1）求{}n a 的通项公式；（2）求数列21n n a ìü+íýîþ的前n 项和n T ；（3）若n N +"Î，1101n n T a l æö³--ç÷èø，求l 的最小值.【答案】（1）12()n n a n N -+=Î（2）()1110252n n T n -æö=-+×ç÷èø（3）38【解析】【分析】（1）当2n ³时，可得1121n n S a --=-，两式相减求得12n n a a -=，得到数列{}n a 为等比数列，进而求得数列{}n a 的通项公式；（2）由12n n a -=，得到()1211212n n n n a -+æö=+×ç÷èø，结合乘公比错位相减法，即可得数列21n n a ìü+íýîþ的前n项和.（3）由1101n n T a l æö³--ç÷èø，得到1252n n l --³，令1252n n n b --=，结合n b 的单调性，求得n b 的最大值，即可求解.小问1详解】解：由题意，数列{}n a 的前n 项和为n S ，且21n n S a =-当2n ³时，可得1121n n S a --=-，两式相减得1122n n n n n S S a a a ---==-，即12n n a a -=，所以12(2,)nn a n n N a +-=³Î，令1n =，可得11121S a a ==-，解得11a =，所以数列{}n a 是首项为1，公比为2的等比数列，所以数列{}n a 的通项公式为12()n n a n N -+=Î.【小问2详解】解：由12n n a -=，可得()1211212n n n n a -+æö=+×ç÷èø，则()01211111357212222n n T n -æöæöæöæö=×+×+×+++×ç÷ç÷ç÷ç÷èøèøèøèøK ，可得()123111113572122222nn T n æöæöæöæö=×+×+×+++×ç÷ç÷ç÷ç÷èøèøèøèøK ，两式相减得123211111131(21)222222n nn T n -æöæöæöæöæö=+++++¼+-+×ç÷ç÷ç÷ç÷ç÷èøèøèøèøèø【()1111123215(25)12212n nn n n --æöæö=+-+×=-+×ç÷ç÷èøèø-，所以()1110252n n T n -æö=-+×ç÷èø.即数列21n n a ìü+íýîþ的前n 项和()1110252n n T n -æö=-+×ç÷èø.【小问3详解】解：由1101n n T a l æö³--ç÷èø，即1111025251010222n n n n n l ---+-³--+=，令1252n n n b --=，则11232572222n nn n nn n nb b +-----=-=，当13n ££时，4321b b b b >>>，当4n ³时，10n n b b +-<，即1n n b b +<，即有456b b b >>>¼，所以当4n =时，n b 取得最大值，最大值为438b =，所以38l ³，故l 的最小值为38.19. 已知函数()()2ln f x x a x x =+--在0x =处取得极值.（1）求实数a 的值；（2）若关于x 方程()52f x x b =-+在区间[]0,2上恰有两个不同的实数根，求实数b 的取值范围；（3）证明：对任意的正整数n ，不等式()23412ln 149n n n +++++>+L 都成立.【答案】（1）1a =；（2）1ln 31ln 22b -£<+；（3）见解析【解析】【分析】（1）函数2()()f x ln x a x x =+--，对其进行求导，在0x =处取得极值，可得(0)0f ¢=，求得a 值；（2）关于x 的方程5()2f x x b =-+在区间[0，2]上恰有两个不同的实数根，将问题转化为()0x j =，在区间[0，2]上恰有两个不同的实数根，对()j x 对进行求导，从而求出b 的范围；（3）2()(1)f x ln x x x =+--的定义域为{|1}x x >-，利用导数研究其单调性，可以推出的2(1)0ln x x x +--£，令1x n=，可以得到2111(1)ln n n n +<+ 利用此不等式进行放缩证明；【详解】解：（1）函数2()()f x ln x a x x =+--1()21f x x x a\¢=--+当0x =时，()f x 取得极值，(0)0f \¢=故120100a-´-=+解得1a =，经检验1a =符合题意． （2）由1a =知2()(1)f x ln x x x =+--由5()2f x x b =-+，得23(1)02ln x x x b +-+-=令23()(1)2x ln x x x b j =+-+-，则5()2f x x b =-+在区间[0，2]上恰有两个不同的实数根等价于()0x j =在区间[0，2]上恰有两个不同的实数根．13(45)(1)()2122(1)x x x x x x j -+-¢=-+=++， 当[0x Î，1]时，()0x j ¢>，于是()j x 在{0，1)上单调递增；当(1x Î，2]时，()0x j ¢<，于是()j x 在(1，2]上单调递减，依题意有(0)0b j =-£，(1)j 3(11)102ln b =+-+->，(2)j (12)430ln b =+-+-£解得，13122ln b ln -<+…； （3）2()(1)f x ln x x x =+--的定义域为{|1}x x >-，由（1）知(23)()1x x f x x -+=+，令()0f x ¢=得，0x =或32x =-（舍去），\当10x -<<时，()0f x ¢>，()f x 单调递增；当0x >时，()0f x ¢<，()f x 单调递减．(0)f \为()f x 在(1,)-+¥上的最大值．()(0)f x f \£，故2(1)0ln x x x +--£（当且仅当0x =时，等号成立）对任意正整数n ，取10x n =>得，2111(1)ln n n n+<+211(n n ln n n++\<故234134122(1)4923n n ln ln ln ln ln n n n+++++¼+>+++¼+=+．【点睛】本题考查利用导数研究函数的极值及单调性，解题过程中用到了分类讨论的思想，分类讨论的思想也是高考的一个重要思想，要注意体会其在解题中的运用，第三问难度比较大，利用了前两问的结论进行证明，此题是一道中档题.。
2020-2021学年武汉市关山中学高三英语月考试题及答案解析
2020-2021学年武汉市关山中学高三英语月考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ASheffieldLincoln College of EnglishClasses for foreign students at all levels.3 months, 6 months, 9 months and one year course.Open all year.Small class (at most 12 students).Library, language laboratory and listening center.Accommodation (住宿)with selected families.25 minutes from London.Course fees for English for one year are￡1,380 with reduction for shorter periods of study.1.This passage is probably taken from _______.A.an advertisementB.a noticeC.a posterD.a piece of news2.Who will be accepted by this college?A.Both foreign and native students.B.Only foreign beginners and the advanced.C.Foreign students from beginners to the advanced.D.Only foreign students advanced.3.While you stay there, who will take care of you?A.Your parents.B.Your classmates.C.The school where you study.D.The family you have chosen.BMore than 10,000 people were made homeless in Ternang when the Sungai Mas overflowed its banks yesterday after six days of continuous heavy rain.The wooden bridge across the river has been washed away. The town is cut off by flood waters. At the fifthmile, Jalan Tengkn, the water is two meters deep. It is closed to all traffic. Flooding first happened at mid-afternoon yesterday along the river banks. People trying to get to higher ground were just in time to escape the destroying of the flood. Most of the flood victims(受害者) had to leave all their things behind.The National Flood Relief(救济) Center was reported to give its help and by early evening the whole town was moved out, helped by the army, police, Red Cross Society and volunteers(志愿者).The flood victims are now housed in different simple relief centers in the nearby town of Ternang. “Everything possible is being done to help the unlucky people,” a government spokesman said, “In fact, money, food and clothing have begun to come in from public organizations and helpful people. A Disaster Relief Fund(救灾基金会) will be started as soon as possible.”According to the latest reports it is still raining heavily at Ternang. The whole town is expected to be wholly covered by the water. So far no deaths have been reported.4. This passage is probably taken from______.A. a storybookB. a textbookC. a magazineD. a newspaper5. It seems that the flood happened just because ______.A. the banks were too lowB. the wooden bridge is solid (坚固)C. the river was too narrowD. they had had wet days for some time6.From the passage we know that ______.A. though the town was flooded, you could still go there by busB. as soon as the water flowed over the banks, people began to go to higher landsC. the government and the whole society are taking great care of the flood victimsD. the flood hasn't brought a large loss to the town as nobody died in the flood7. What is the best title for this passage?A. A Big FloodB. Ternang Is destroyedC. Over 10,000 People Are HomelessD. Rescue Team ArrivedCWhether for a special holiday, as a way of showing gratitude or just a way of letting someone know you care, gift giving is a universal custom Though the purpose may be similar from place to place, traditions vary widely from one country to the next. A behavior that shows respect in one place might be consideredoffensivesomewhere else. Take a look at unique gifting traditions from around the world.Here in theUS, a set of kitchen knives seems like the perfect gift idea for a wedding. However, in certain European countries likeGermany, people believe that a knife presented as a gift will cut off your friendship. There is a way to break it: Tie a coin to the knife or gift box. The receiver then returns the coin to you as a “payment”to remove the bad luck.There's a well-known Italian wedding tradition where the groom's (新郎) tie is cut into a number of tiny pieces. Wedding guests can then "buy” these tie pieces in exchange for cash. It's a fun way to give money to the new couple thatleaves guests with a wedding souvenir.As left hands are considered unclean in Indian culture, behaviors such as touching, passing money, or giving gifts are to be done with the right hand. Different from some other cultures , an odd number (奇数) of thingsor currency represents good luck. For example, £11 should be given rather than £10.InZimbabwe, it is common to directly ask for a gift. When you receive a gift without asking for it, even if the giver's family is poor, it's the worst way to reject the offering. Also, expressing thanks with actions is better than giving thanks orally (口头地).These may include jumping up and down, dancing, or whistling.8. What does the underlined word “offensive“ in paragraph 1 refer to?A. Rude.B. Creative.C. Suitable.D. Caring.9. How do people prevent friendship breaking down when giving gifts like knives?A. The guests cut the groom's tie into pieces.B. The receiver returns the coin to the giver.C. The giver gives gifts with the right hand.D. The receiver expresses thanks by dancing.10. What can we learn about the gift giving inZimbabwe?A. It is not proper to ask for a gift directly.B. It's better to reject a gift from a poor family.C. One can express thanks by writing letters.D. Showing gratitude with actions is better than words.11. Which can be a suitable title for the text?A. The Wayof Showing GratitudeB. A Fun Behavior to Respect PeopleC. Various Gift Giving TraditionsD. A Special Custom of Gift GivingDI’ve never been the kind of person to say, “it’s the thought that counts” when it comes to gifts. That was until a couple of weeks ago, when my kids gave me a present thatblew me away.For years now, I’ve been wanting to sell our home, the place where my husband and I raised our kids. But to me, this house is much more than just a building.In the front room, there’s a wall that has hundreds of pencil lines, marking the progress of my children’s growth. Every growth stage is marked in grey, with each child’s name and the date they were measured. Of all the objects and all the memories, it’s this one thing in a home that’s the hardest to leave behind. Friends I know have returned home after work only to discover their wall of heights has been freshly painted over. A new paint job wouldn’t normally be greeted by tears, but erasing that evidence of motherhood hurts more than it should. Our kids grow in so many ways, but the wall is physical evidence of their progress, right there for everyone to see. Over the years, I’ve talked about how much I would hate leaving that wall behind when I moved, even though the last marks were made 10 years ago when my kids stopped growing.So one day, while I was at work, my childrendecided to do something about it.They hired Jacquie Manning, a professional photographer whose work is about capturing (捕捉) the beautiful things in life, from clear lakes and skies to diamonds and ballgowns (舞会礼服).She came to our house while I was at work, and over several hours, took photos of the hundreds of drawings and lines, little grey fingerprints (手印), and old marks. Somehow, she managed to photograph all those years of memories perfectly. Afterwards, she put all the photos together into one image, transforming them into a beautiful history of my family.Three weeks later, my children’s wonderful gift made its way to me—a life-size photo of the pencil lines and fingerprints that represents entire lifetimes of love and growth.12. The underlined phrase in Para. I “blew me away” probably means “________”.A. attracted meB. surprised meC. accepted meD. refused me13. What does the house really mean to the author?A. A house.B. Buildings.C. An object.D. Memories.14. What surprised the friends I know after work?A. Finding the wall repainted.B. Erasing the fingerprints.C. Greeting them by tears.D. Leaving the wall unfinished.15. What is the best title for the text?A. Gift Made with LoveB. Buildings Made by ChildrenC. A Very Wonderful PaintingD. A Family History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。
高考数学复习热点02 数学传统文化和实际民生为载体的创新题(解析版)
热点02 数学传统文化和实际民生为载体的创新题【命题形式】1、考查题型主要是选择题和填空题，计算题和证明题比较少，涉及到的知识点主要集中在函数、数列、立体几何证明与计算、复数、组合、三角函数、概率、推理、圆锥曲线。
2、数学文化考查背景总结如下:①以数学名著为考查背景，以中国数学典籍史料中优秀成果为背景。
②以数学猜想和定理为命题背景。
③以数学名家的故事为命题背景，以数学家的故事，为考查背景，正是对创新精神数学精神的一种传承。
④以数学的应用为命题背景。
⑤历史名人。
⑥历史发展。
3、文化背景的考查在突出所要考查的数学知识的同时，培养学生的数学素养，不仅可以让学生理解数学文化形成数学素养，同时也让学生感受我们古代数学的伟大成就，增强爱国情怀，引导学生了解数学文化体现数学文化以数化人的本质内涵。
这是新高考考察的目的，从而这类问题也是新高考必考题型。
4、数学高考题渗透了大量的数学文化，尤其是渗透到中国古代独特的数学题目。
但这些题目考查的知识点有限，很多内容并未涉及到。
我们现在的社会在飞速发展，无论是科技还是人的思想都不断地变化。
为了让学生能够更好地适应未来社会的发展，我们的教育需要及时更新，不仅仅要反映在教材，考试也应该与时俱进，而不再是摸小球，投骰子，算水费这些老古董的模型背景，更应该与时俱进。
比如以科技为背景文化材料都可以作为激发学生学习兴趣的新材料。
像2020年12月2日嫦娥五号成功降落在月球上，它里面所涉及的轨道、运动都能成为很好的考查背景材料，而这些发射卫星的基地名称也可以作为命题背景的一大亮眼之处。
除次以外，同样可以结合其他学科知识和实际民生，比如新冠肺炎这些热点问题也可以成为出题的背景，进入数学高考题。
【满分技巧】1、多掌握数学文化知识通过对数学文化知识了解使学生对文化素养的提升，做题时能够做到有的放矢，减少对这类问题的恐惧心理。
2、注意数学文化的译文很多数学文化的题型都是选用的是中国传统数学文化，题目前面都是以文言文的形式出现，而后面都会对给出译文，译文才是本题的关键题意，所以这类题的关键地方是在译文上理解。
江西省南昌市第十中学2021届高三下学期第一次月考英语试题 Word版含答案
南昌十中2020－2021学年下学期第一次月考高三英语试题说明：本试卷分第I卷(选择题)和第Ⅱ卷(非选择题)两部分，全卷满分150分。
考试用时120分钟，注意事项：考生在答题前请认真阅读本注意事项及各题答题要求。
1．答题前，请您务必将自己的姓名、准考证号或IS号用书写黑色字迹的0．5毫米签字笔填写在答题卡和答题纸上。
2．作答非选择题必须用书写黑色字迹的0．5毫米签字笔写在答题纸上的指定位置，在其它位置作答一律无效。
作答选择题必须用2B铅笔把答题卡上对应题目的答案标号涂黑。
如需改动，请用橡皮擦干净后，再选涂其它答案，请保持卡面清洁和答题纸清洁，不折叠、不破损。
3．考试结束后，请将答题纸交回。
第Ⅰ卷（选择题）第一部分听力（共两节，满分30分）第一节（共5小题；每小题1.5分，满分7.5分）听下面5段对话。
每段对话仅读一遍。
例：How much is the shirt?A. £ 19. 15.B. £ 9. 18.C. £ 9. 15.1. What do we know about the man?A. He is a smoker.B. He hates smoking.C. He likes the manager.2. How far is it from Beijing to Handan?A. About 200 km.B. About 300 km.C. About 500 km.3. What will the speakers do next?A. Go shopping.B. Go walking.C. Go swimming.4. How does the woman think of making cakes?A. Difficult.B. Easy.C. Interesting.5. What is the probable relationship of the speakers?A. Husband and wife.B. Colleagues.C. Doctor and patient.第二节（共15小题；每小题1.5分，满分22.5分）听第6段材料，回答第6、7题。
2020-2021学年长春市三十一中学高三英语月考试卷及答案
2020-2021学年长春市三十一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AOne day when I was 5, my mother blamed me for not finishing my rice and I got angry. I wanted to play outside and not to be made to finish eating my old rice. When angrily opening the screen door (纱门) with my foot, I kicked back about a 12-inch part of the lower left hand corner of the new screen door. But I had no regret, for I was happy to be playing in the backyard with my toys.Today, I know if my child had done what I did, I would have blamed my child, and told him about how expensive this new screen door was, and I would have delivered a spanking (打屁股) for it. However, my parents never said a word. They left the corner of the screen door pushed out, creating an opening, in the defense against unwanted insects.For years, every time I saw that corner of the screen, it would constantly make me think about my mistake. For years, I knew that everyone in my family would see that hole and remember who did it. For years, every time I saw a fly buzzing (嗡嗡) in the kitchen, I would wonder if it came in through the hole that I had created with my angry foot. Iwould wonder if my family members were thinking the same thing, silently blaming me every time a flying insect entered our home, making life more terrible for us all. My parents taught me a valuable lesson, one that a spanking or stern (严厉的) words perhapscould not deliver. Their silent punishment for what I had done delivered a hundred stern messages to me. Above all, it has helped me become a more patient person and not burst out so easily.1. When the author damaged the door, his parents _______.A. gave him a spankingB. left the door unrepairedC. told him how expensive it wasD. blamed him for what he had done2. The experience may cause the author _______.A. not to go against his parents’ willB. to have a better control of himselfC. not to make mistakes in the futureD. to hide his anger away from others3. What is the main idea of this text?A. Parents is the best way to solve problems.B. Parents are the best teachers of their children.C. Adults should ignore their children’s bad behavior.D. Silent punishment may have a better effect on educating people.BA 24-year-old female space commander has become a viral sensation on Chinese social media for her work.Zhou Chengyu was in charge of the rocket connector system---described as a vital role. Her story in particular has drawn the public’s attention given her young age. Social media users have been celebrating her brilliance and referring to her as pride of the country.Being the youngest of the team, Zhou Chengyu was born in1996 intheprovinceofGuizhou. She is certainly not “old” enough compared with her colleagues, but she is known at work as "Big Sister” as a sign of respect. Once in a 3-km running contest, she actually beat half of her male counterparts. Although work shifts are not uncommon at the Wenchang Spacecraft Launch Site, each shift requires tremendous courage because of the different background knowledge. However, for Zhou Chengyu, she experienced multiple positions in 5 launching tests and now she is the youngest commander at the site.Despite carefulness and high responsibility at work, she is just like her peers in normal life. Eating snacks and shopping are her favorite free-time activities. Her high school teacher remembers her as tough and determined. “She always had a dream of becoming scientist,” said her physics teacher.According to her colleague, Zhou Chengyu was very surprised when she found out shewent viralonline. She said that she was happy when she saw people online regarding her as the pride of the country, and yet she kept saying that she was “nobody but normal worker at a launch site” and there are a lot more people just like her going unnoticed while doing the hardest job to guarantee a better future for the Chinese space program. She also said that she wished to remain her current status and continue doing her work with or without the popularity.4. What makes Zhou Chengyu the pride of the country?A. Her young age.B. Her vital role in her work.C. Her great courage.D. Her responsibility at work.5. Which of the following words can best describe Zhou Chengyu?A. Learned and confident.B. Respectable and generous.C. Patient and responsible.D. Modest and determined.6. Which of the following can replace the underlined words in paragraph 5?A. took prideB. made a contributionC. became a hitD. made an achievement7. What can be the best title for the text?A. A Young PrideB. A Successful ColleagueC. An Extraordinary DreamD. An Ambitious CommanderCLarry was on another of his underwater expeditions(探险)but this time, it was different. He decided to take his daughter along with him. She was only ten years old. This would be her first trip with her father on what he had always been famous for.Larry first began diving when he was his daughter’s age. Similarly, his father had taken him along on one of his expeditions. Since then, he had never looked back. Larry started out by renting diving suits from the small diving shop just along the shore. He had hated them. They were either too big or too small. Then, there was the instructor. He gave him a short lesson before allowing him into the water with his father. He had made an exception. Larry would never have been able to go down without at least five hours of theory and another similar number of hours on practical lessons with a guide. Children of his age were not even allowed to dive.After the first expedition, Larry’s later diving adventures only got better and better. There was never a dull moment. In his black and blue suit and with an oxygen tank fastened on his back, Larry dived from boats into the middle of the ocean. Dangerous areas did not prevent him from continuing his search. Sometimes, he was limited to a cage underwater but that did not bother him. At least, he was still able to take photographs of the underwater creatures.Larry’s first expedition without his father was in the Cayman Islands. There were numerous diving spots in the area and Larry was determined to visit all of them .Fortunately for him, a man offered to take him around the different spots for rry didn’t even know what the time was, how many spots he dived into or how many photographs he had taken.The diving spots afforded such a wide range of fish and sea creatures that Larry saw more than thirty varieties of creatures.Larry looked at his daughter. She looked as excited as he had been when he was her age. He hoped she would be able to continue the family tradition. Already, she looked like she was much braver than had been then. This was the key to a successful underwater expedition.8. In what way was this expedition different for Larry?A. His daughter had grown up.B. He had become a famous diver.C. His father would dive with him.D. His daughter would dive with him.9. What can be inferred from Paragraph 2?A. Larry had some special right.B. Larry liked the rented diving suits.C. Divers had to buy diving equipment.D. Ten-year-old children were permitted to dive.10. What can be learned from the underlined sentence?A. Larry didn’t wear a watch.B. Larry was not good at math.C. Larry had a poor memory.D. Larry enjoyed the adventure.11. What did Larry expect his daughter to do?A. Become a successful diver.B. Make a good diving guide.C. Take a lot of photo underwater.D. Have longer hours of training.DIn Copenhagen, an 8-year dream was realized when the first paid skiers took their runs down a one-third-mile course (路线)．They skied on what is possibly the greenestpower factory in the world．The factory is so clean and safe that designers were able to turn its buildings into a new center for social life．The waste-to-power factory itself opened in 2017 under the name Amager Bakke．Bjarke Ingels is the architect whosecompany came up with the idea eight years ago of designing a power plant building that would join mountain sports into its very nature．“It is the cleanest waste-to-energy power plant in the world．It is not only better for the environment, it is also moreenjoyable for the lives of its citizens.” Ingels says 97% of city people get their heating as a by-product of energy production．It comes from a system where the electricity, heating, and waste disposal (处理) are mixed into a single process．He dreams that it is also becoming an example that others can look to and say, “IfCopenhagencan do it why can' t we?"There are no hills in this island city, but now people can ski locally, while enjoying the best views ever seen of the harbor．Another thing missing hereis snow cover throughout the winter, so designers set up a kind of special "plastic grass" that provides the perfect friction (摩擦力) for downhill winter sports．In a country where 600, 000 skiers always had to travel to practice sking, to be able to finally ski in their backyard-and, all year round - is, as one skier said, “AMAZING．”The company hopes to see 300, 000 visitors enjoying the experience of Copen hill each year, with the ski slope costing $ 22 an hour or just $ 366 for a full season pass．Meanwhile, the city is one step closer to its final goal of becoming the world's first carbon-neutral city by 2025．We thinkit might be all “down hill” from here．12. How does the power factory produce electricity?A. By using oil．B. By using coal．C. By usingwind．D. By using waste．13. What' s Ingels' dream according to the passage?A. To make more tall buildings in different big cities．B. To help more skiers to ski in high mountains．C. There will be more green power factories in the world．D. More and more people will ski in the power factory．14. Where do the skiers ski in the power factory?A. On man-made snow．B. On man-made ice．C. On plastic grass．D. On real sand．15. The underlined part “it might be all 'downhill' from here" means that________.A. they will soon reach their final goalB. they will soon draw many visitorsC. they will produce more electricityD. they have difficulties reaching the goal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。
2020-2021学年江西省吉安市白沙中学高三英语月考试卷含解析
2020-2021学年江西省吉安市白沙中学高三英语月考试卷含解析一、选择题1. The little pet cat felt freezing cold, so she stood_______ to her mother.A. closeB. closelyC. closedD. Closing参考答案：A2. — How long have you the dictionary?— For three weeks.A. borrowedB. hadC. bought参考答案：B句意：——你买这本字典多久了？——有三周了。
考查动词辨析题。
borrow（借）和buy（买）都是非延续性动词，for three weeks是一段时间，非延续性动词不可用于一段时间；根据句意语境，可知选B。
3. – Mary looks hot and dry.– So _______ you if you had a high fever.A. doB. areC. willD. would参考答案：D4. By _____ nature, you are an adventurer, full of amazement and curiosity about ______ world bigger than life itself.A．a; the B．the; the C．/; a D．the; /参考答案：C5. —More and more students go abroad for further education.—_______. But they have to go back to get a job.A. That’s all rightB. Sounds a good ideaC. I agree with youD. That’s the case参考答案：D6. . ------What do you think made Mary so upset?-------- _________her new bicycle.A. As she lostB. LostC. LosingD. Because of losing参考答案：C7. She _____ the carpet with some very nice curtains in colour.A. connectedB. fittedC. equippedD. matched.参考答案：D8. Henry, it’s your turn. Please ____ the story where we left off before our coffee break.A. make upB. take upC. bring upD. set up参考答案：B【详解】考查动词短语辨析。
宁夏回族自治区银川一中2020┄2021届高三第一次月考化学试题Word版 含答案
银川一中2021年高三年级第一次月考理科综合化学试卷本试卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分。
其中第Ⅱ卷第33～38题为选考题，其它题为必考题。
考生作答时，将答案写在答题卡上，在本试卷上答题无效。
第Ⅰ卷（共126分）可能用到的相对原子质量（原子量）：H-1 C-12 N-14 O-16 Na-23 Al-27Si-28 S-32 Fe-56 Cu-64 Ba-137一、选择题：本题包括13小题。
每小题6分，共78分，每小题只有一个选项符合题意。
7．化学与生活密切联系。
下列性质与应用对应关系错误的是8Ａ．干冰、盐酸都是电解质Ｂ． Na2O2、Fe2O3、CaO既属于碱性氧化物，又属于离子化合物Ｃ．有单质参加或有单质生成的反应不一定属于氧化还原反应Ｄ．根据是否具有丁达尔效应，可将分散系分为溶液、浊液和胶体9．N A代表阿佛加德罗的值，下列说法正确的是A．在标准状况下，4.48LN2H4中含非极性共价键数目为0.2N AB．32g铜与足量的硫在加热条件下充分反应转移电子数为0.5N AC．常温下，PH=1的H3PO4溶液中含有0.1N A个H+D．28g 30Si中含有16N A个中子10．常温下，下列各组离子在指定条件下一定能大量共存的是A．PH=7的溶液中：Na+、Fe3+、SO42-、NO3-B．加入铝粉能产生H2的溶液中：NH4+、Na+、NO3-、Cl-C．能使甲基橙显红色的溶液中：K+、NH4+、SO42-、AlO2-D．c（H+）/ c（OH-）=1×1012 mol·L-1的澄清透明溶液中：Mg2+、Cu2+、SO42-、Cl-11．用下列装置进行实验能达到相应实验目的的是A．用该装置收集NO B．分离氢氧化铁胶体和氯化钠溶液C．实验室中制取少量蒸馏水 D．配制100 mL 0.10 mol﹒L-1盐酸12．能正确表示下列反应的离子方程式是Ａ．将饱和氯化铁溶液逐滴加入煮沸的蒸馏水中制备氢氧化铁胶体：Fe3+ + 3H2O = Fe（OH）3↓+ 3H+Ｂ．向FeBr2溶液中通入过量Cl2：2Fe2+ + 2Br- + 2Cl2 = 2Fe3++ Br2 + 4Cl-Ｃ．将NaHCO3溶液与过量的Ca（OH）2溶液混合：HCO3- + OH-+ Ca2+ = CaCO3↓+ H2OＤ．用KIO3氧化酸性溶液中的KI：5I- + IO3- + 3H2O = 3I2 + 6OH-13．将51.2 g Cu完全溶于适量浓硝酸中，收集到氮的氧化物（含NO、NO2、N2O4）的混合物共0.8 mol，这些气体恰好能被600mL 2.0mol·L—1NaOH溶液完全吸收，溶液中生成NaNO3和NaNO2，则被Cu还原的硝酸的物质的量为A．0.6 mol B．0.8 mol C．1 mol D．1.2 mol26．（15分）已知Na2O2可用作漂白剂和呼吸面具中的供氧剂．（1）写出Na2O2作供氧剂的反应方程式。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
2020-2021高三年上学期10月份月考英语试卷考试时间：120分钟试卷满分：150分第一部分听力(共两节,满分30分)第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. Where does the conversation probably take place?A. At a zoo.B. In a library.C. In a drugstore.2. What will the man do next?A. Change some money.B.Take the food home.C. Sit and eat his meal.3. What does the woman suggest?A. Buying a computer.B. Hiring an assistant.C. Starting a business.4. What are the speakers talking about?A. The weather.B. The scenery.C. The traffic.5. When did the man see the film?A. On Wednesday.B. On Thursday.C. On Saturday.笫二节（共15小题；每小题1.5分，满分22.5分）听下面5段对话或独内。
每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听每段对话或独内前，你将有时间阅读各个小题，每小题5秒钟；第一部分听力(共两节，每小题1.5分，满分30分)1~5B CBAB6~10B CB C A11~15A BA CA16~20C A B A C第二部分阅读(共两节，每小题2.5分，满分50分)21-25 ACBCD 26-30 BDBAC 31-35 DACDA36—40 DFAEG第三部分语言运用(共两节，满分30分)第一节(共15小题:每小题1分，满分15分)41—45BBDCD 46—50 AACBD 51—55 BADBC第二节(共10小题；每小题1.5分，满分15分)56. in 57. cities 58. who 59 .to read 60. was destroyed61. the 62. has been 63. better 64. it 65. suffering第三部分写作(共两节，满分40分)第一节(满分15分)One possible version:An exciting event “Innovations on Campus” is around the corner. Here comes your opportunity to show your creativity!Before handing in your innovation, there are several things that you should bear in mind. First, you work should be closely related to campus life. Second, you need to include a report explaining where you get the idea from and how your innovation works.The exhibition of all the innovations will take place from June 16 to June 18 in the school gym and the prize-giving ceremony will be held in the same place f rom 15:00 to 17:00 on June 18.It’s such a golden chance to show your creativity that you could not let听完后，各小题将给出5秒钟的作答时间。
每段对话或独内读两遍。
听第6段材料，回答笫6、7题。
6. Who is the newcomer?A. David Cook.B. Joey Sanders.C. Liam Neeson.7. What is the newcomer’s position in the company?A. He is a film director.B. He is a program manager.C. He is a department head.听第7段材料，回答笫8至10题。
8. What does the woman do?A. She’s a secretary.B. She’s a hotel maid.C. She’s a salesperson.9. What is the man going to do?A. Change the sheets.B. Have breakfast.C. Meet his friends.10. What does the man ask the woman to do at the end of the conversation?A. Take the plate away.B. Bring some towels.C. Turn on the light.听第8段材料，回答笫11至13题。
11. Why does Jessica make the call?A. To look for her passport.B. To apply for a credit card.C. To ask for the manager.12. Where will Jessica go right after the phone call?A. The bank.B. Her home.C. The supermarket.13. How does the man sound?A. Helpful.B. Nervous.C. Surprised.听第9段材料，回答第14至17题。
14. What is the man doing?第一部分听力(共两节，每小题1.5分，满分30分)1~5B CBAB6~10B CB C A11~15A BA CA16~20C A B A C第二部分阅读(共两节，每小题2.5分，满分50分)21-25 ACBCD 26-30 BDBAC 31-35 DACDA36—40 DFAEG第三部分语言运用(共两节，满分30分)第一节(共15小题:每小题1分，满分15分)41—45BBDCD 46—50 AACBD 51—55 BADBC第二节(共10小题；每小题1.5分，满分15分)56. in 57. cities 58. who 59 .to read 60. was destroyed61. the 62. has been 63. better 64. it 65. suffering第三部分写作(共两节，满分40分)第一节(满分15分)One possible version:An exciting event “Innovations on Campus” is around the corner. Here comes your opportunity to show your creativity!Before handing in your innovation, there are several things that you should bear in mind. First, you work should be closely related to campus life. Second, you need to include a report explaining where you get the idea from and how your innovation works.The exhibition of all the innovations will take place from June 16 to June 18 in the school gym and the prize-giving ceremony will be held in the same place f rom 15:00 to 17:00 on June 18.It’s such a golden chance to show your creativity that you could not letA. Placing an order.B. Selling insurance.C. Conducting an interview.15. What did Leaney study for a degree?A. Finance.B. Education.C. Public Relations.16. What is an advantage of a smaller business according to Leaney?A. Greater contributions to the neighborhood.B. Closer employer-employee relationship.C. More flexibility in providing services.17. What is Leaney’s plan for the next two weeks?A.To visit her parents.B. To call her relatives.C. To finish her work.听第10段材料，回答第18至20题。
18. What is the purpose of the talk?A.To present a prize.B. To introduce a lecturer.C. To recommend a book.19. Where is Russel working now?A. In Oxford.B. In Chicago.C. In Virginia.20. What does Russel think of sleep?A. It’s seldom studied.B. It’s just a waste of time.C. It’s of great importance.第二部分阅读理解（共两节，满分50分）第一节（共15小题；每小题2.5分，满分37.5分）阅读下列短文，从每题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。