贵州省毕节市实验高级中学2020-2021学年高二上学期期中英语试题

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湖南省2020-2021学年高二上学期期中英语试卷精选汇编:七选五专题

湖南省2020-2021学年高二上学期期中英语试卷精选汇编:七选五专题

七选五专题湖南师范大学附属中学2020-2021学年高二上学期期中考试英语试题第二节(共5小题;每小题2.5分,满分12.5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。

选项中有两项为多余选项。

A research has discovered that your gift for happiness is determined by your genes to a large degree. 36 We can do this by overcoming negative emotions and developing positive emotions.Strategy 1: 37The first step is to make a choice to be happy. In Seeking Happiness,Bertrand Russell said,"Happiness must be an achievement rather than a gift of the gods,and in this achievement, effort must play a great part. ” Once you've decided to be happier, you can choose strategies for achieving happiness.Strategy 2: Develop gratitude.In Authentic Happiness,psychologist Martin Seligman encourages readers to perform a daily"gratitude exercise". 38Strategy 3: Remember, money can't buy happiness.Research shows: 39 Yes,“We always think that some things are wrong because they cannot bring us happiness,” writes Daniel Gilbert in Stumbling on Happiness.Strategy 4: Take part in meaningful activities."People are seldom happier,” says Jackson, “than when they're doing meaningful activities."Yet he has found that the most common leisure activity-watching TV-produces some of the lowest levels of happiness. 40 Active leisure that helps a person grow does not come easily,he writes in Finding Flow.A. Choose to be happy.B. Achieve happiness.C. To get more out of life,we need to put more into it.D. Yet,psychologists believe we can pursue happiness.E. Happiness is decided by a good many aspects.F. More money doesn't necessarily bring extra happiness.G. This shifts people away from bitterness, and promotes happiness.36. D.通过观察该空前句“A research has discovered that your gift for happiness is determine d by your genes to a large degree.(一项研究发现,你的快乐天赋在很大程度上取决于你的基因。

贵州省毕节市大方县实验高级中学2013-2014学年高一下学期期中考试英语试题(3)

贵州省毕节市大方县实验高级中学2013-2014学年高一下学期期中考试英语试题(3)

贵州省毕节市大方县实验高级中学2013-2014学年高一下学期期中考试英语试题(3)1. It always takes a while to___ before the meeting begin.A. take downB. settle downC. get downD. put down2. I don’t know where ____ .A. was the dancer liveB. the dancer livesC. did the dancer liveD. lives the dancer3.A number of teachers ___ present today and ____them is 50.A. is ;a number ofB. are ;a number ofC. are ;the number ofD. was ;the number4. The sports meeting ____ because of the bad weather.A. has put offB. has been put offC. had put offD. has not been put off5. Tom ; with his parents, ______Tokyo by plane which _____ at 9:10 next morning.A. is leaving for ; will leaveB. are leaving for ; leavesC. is leaving for ; leavesD. will leave for ; will leave6. The boy is familiar to me;maybe he is the boy _____ I met in the street yesterday.A. whomB. whoseC. whoD. that7. –Have you moved into the new room?--Not yet , the room _____. .A. is paintingB. has been paintedC. is being paintedD. have painted8. –I hear Lily once was ____ of losing her life.--Yes ,but now she is .A. in the danger ; out of dangerB. in danger ; out of the dangerC. in the danger ; out of dangerD. in danger ; out of danger9. I would greatly___ it if you___ send me the letter as soon as possible.A. appreciates ; couldB. appreciates ; canC. appreciate ; couldD. appreciate ; can10. He is unable to go to work ______the falling of the house.A. as a resultB. result inC. result fromD. as a result of11. This ____the first time that I ____Shanghai.A. is ; had been toB. is ; has been toC. was ; had been toD. was ; has been to12. There are_____ many people in ____ a small room that it is crowed now.A. too ; toB. such ; soC. so ; suchD. too ; such13. Jack made____ great progress last term and as ____ result , he was praised by the teacher.A. / ; a B . the ; anC . a ; a D. a ; /14. I wonder why Tom always gets good marks when he does only ____ the others.A. half as much asB. as much as halfC. half as many asD. as many as half15. Is this the museum ______you worked a few years ago?A. whereB. on whichC. thatD. the one第二节完形填空(满分30分,每题1.5分)阅读下面短文,从短文后各题所给的四个选项(A、B、C和D) 中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

湖南省2020-2021学年高二上学期期中英语试卷精选汇编:读后续写专题

湖南省2020-2021学年高二上学期期中英语试卷精选汇编:读后续写专题

读后续写专题湖南师范大学附属中学2020-2021学年高二上学期期中考试英语试题第二节(满分25分)阅读下面材料,根据其内容和所给段落开头语续写两段,使之构成一篇完整的短文。

Sophia frowned as she helped her mother and father set out the cooking supplies in the shiny steel kitchen. Her family had just moved here from San Francisco,having bought a small restaurant, which was set to open in the next few days."Moving here was a dumb idea," Sophia grumbled,mostly to herself. The girl had been joyless about the move, but her parents had made the decision and were now too busy getting ready for the grand opening to listen to her complaints.The first few days at her new school hadn't been easy,either. She found it hard to talk to people she didn't know, and it seemed like the students hadn't even noticed her. Sophia sighed and got back to washing dishes.On the day of the grand opening,Sophia' s parents were all smiling,welcoming customers into the restaurant, brightly decorated in gold and red. Even Sophia was in a good mood as she rushed around,seating guests,handing out menus,and pouring tall glasses of water. This was a big day for her family.At one of the tables sat a family with two daughters who were about Sophia' s age. As she filled their glasses,Sophia realized the twins were in her class,Emily and Jenny. Sophia ducked her head down so her long hair covered her face,and she turned away from the table.Sophia' s mother found her soon after, in the kitchen loading the dishwasher.“Honey, what are you doing back here? W e need you out front with the customers. ”“Mom, I don't want to be out there. There are kids from school!”"So?” her mother asked.“That's good! Go take them some fortune cookies and say hello!”She clucked hertongue disapprovingly at Sophia and disappeared out of the kitchen.Sophia frowned. She grabbed a handful of fortune cookies that they gave out after every meal,but first she tore open a wrapper and cracked a cookie open for herself. She popped a sweet, crunchy piece in her mouth, and absently read the fortune paper it held."Many friends are found with a single smile,” it read.注意:1.续写词数应为150左右;2.请按如下格式在答题卡的相应位置作答。

江西省2020-2021学年高二上学期期中英语试题分类汇编-语法填空含答案

江西省2020-2021学年高二上学期期中英语试题分类汇编-语法填空含答案

江西省2020-2021学年高二上学期期中英语试题分类汇编-语法填空江西省赣州市十五县(市)十六校2020-2021学年高二上学期期中联考英语试题第一节(共10小题;每小题1.5分)阅读下面材料,在空白处填入适当的内容(1个单词)或括号内单词的正确形式。

The southern area of Jiangxi province____41____(produce) tea for hundreds of years. Villagers there often like to sing songs while_____42_____(pick) tea leaves. The beautiful tunes echo over the tea gardens in the hills. After over 400 years of development, this practice has transformed into a performance art.The tea-leave picking opera, or Caicha Xi in Chinese, is_____43_____culture monument of Jiangxi province, having a history of more than 400 years. The opera can be seen on special occasions such as Chinese New Year,_____44_____the locals are looking to pray for prosperity and a good harvest. Tea-picking opera in southern Jiangxi province is a combination of folk songs and dancing.____45____(it) repertoire(表演剧目) is not about royal families or government officials,_____46_____about the daily lives of local people.After the founding of New China,_____47_____(music) created a number of songs based on tea -picking tunes and took the opera to a bigger stage. In 1960s, the popular “ See the Red Army off” _______48_______(compose) by drawing inspirations from one of the_____49_____ (tradition) tunes of the southern Jiangxi tea-picking opera.86 years ago, with the same tune, mothers saw off their sons, and wives saw off their husbands for Long March.In 2006, it was listed______50______an intangible cultural heritage in China. To better keep the tradition and pass it on from generation to generation , the local government has provided free education to teenagers in love with tea-picking opera.【答案】41. has produced 或has been producing42. picking43. a44. when45. Its46. but47. musicians48. was composed49. traditional50. as江西省吉安市省重点中学2020-2021学年高二上学期联合考试英语试题第二节:语法填空。

毕节市实验高级中学2020-2021学年高一上学期期中考试 化学试题(含答案)

毕节市实验高级中学2020-2021学年高一上学期期中考试 化学试题(含答案)

毕节市实验高级中学2020-2021学年高一上学期期中考试化学试题可能用到的相对原子质量 C 12 H 1 O 16 Cl 35.5 N 14 S 32一、单选题(共16小题,每小题3.0分,共48分)1.为了火车客运安全,下列药品:①NH4NO3②H2SO4③食盐④油漆⑤汽油⑥黑火药⑦生石灰,从化学性质判断,由于易燃易爆而不能带上火车的是()A.③④⑤⑥⑦ B.①②⑦ C.①④⑤⑥ D.①④⑦2.某学生欲用量筒量取9.8 mL液体,读数时选择仰视的读法,则该学生实际倒出液体的体积()A.大于9.8mL B.小于9.8 mL C.等于9.8 mL D.无法确定3.下列各图所示装置的气密性检查中,漏气的是()A.答案A B.答案B C.答案C D.答案D4.下列有关物质的量的叙述,错误的是()A.物质的量是国际单位制中七个基本物理量之一B.物质的量表示含有一定数目粒子的集合体C.物质的量是国际单位制中的一个基本单位D.摩尔是计量原子、分子或离子等微观粒子的“物质的量”的单位5.已知a mol H2和b mol H2O中所含的原子个数相等,则a∶b的值为()A.1∶1 B.1∶3 C.3∶2 D.任意比6.已知1.505×1023个X气体分子的质量为8 g,则X气体的摩尔质量是()A.32 B.32 g C.64 g·mol-1 D.32 g·mol-17.下列变化需要加入还原剂才能实现的是()A.MnO4-→ MnO2B.Cl--→Cl2C.H2S → SO2D.Fe2+→ Fe8.根据反应式:① 2Fe3+ + 2I- = 2Fe2+ + I2 ② Br2 + 2Fe2+ = 2Fe3+ + 2Br-可判断离子的还原性从强到弱的顺序是()A.Br-、Fe2+ 、Cl-B.I- 、Fe2+ 、Br-C.Br- 、I- 、Fe2+D.Fe2+ 、I- 、Br-9.下列应用或事实与胶体的性质无关的是()A.清晨的阳光穿过茂密的林木枝叶所产生的美丽的光线B.向FeCl3溶液中滴加NaOH溶液出现红褐色沉淀C.肾功能衰竭等疾病引起的尿中毒,可利用半透膜进行血液透析D.在海水与河水交界处,易形成三角洲10.下列说法中正确的是()A.液态HCl、固态NaCl均不导电,所以HCl、NaCl均不是电解质B.NH3、CO2的水溶液均导电,所以NH3、CO2均是电解质C.铜、石墨均导电,所以它们是电解质D.蔗糖、酒精在水溶液或熔化时均不导电,所以它们是非电解质11.关于酸、碱、盐的下列说法中错误的是()A.酸在水溶液中电离产生的阳离子全部是氢离子B.碱在水溶液中电离产生的阴离子全部是氢氧根离子C.盐在水溶液中电离一定有金属阳离子产生D.酸和盐在水溶液中电离都可能有含氧酸根离子产生12.在某无色酸性溶液中能大量共存的一组离子是()A .Na+、K+、、 B.、、Al3+、C.Na+、Ca2+、、 D.K+、、、13.下列各组中两个溶液间的反应,均可用同一离子方程式表示的是()A.CH3COOH和Na2CO3与CH3COOH和NaHCO3B.AgNO3和HCl与Ag2CO3和HClC.BaCl2和Na2SO4与Ba(OH)2和H2SO4D.KOH和CH3COONH4与Ba(OH)2和NH4Cl14.如图所示,其工作原理不涉及氧化还原反应的是()A.A B.B C.C D.D15.已知在碱性溶液中可发生如下反应:2R(OH)3+3ClO﹣+4OH﹣===+3Cl﹣+5H2O,则中R的化合价是()A.+3 B.+4 C.+5 D.+616.NaNO2+NH4Cl===NaCl+N2+2H2O,下列关于该反应的说法中,正确的是()A.NH4Cl中的N元素被还原 B.生成1 mol N2时转移的电子数为6 molC.NaNO2是氧化剂 D.N2既是氧化剂又是还原剂二、填空题(共5小题,52分)17.(6分)过滤在实验、生产、生活中有着广泛的应用。

贵州省毕节市金沙县实验高级中学2024-2025学年高二上学期第一次月考数学试卷 (无答案)

贵州省毕节市金沙县实验高级中学2024-2025学年高二上学期第一次月考数学试卷 (无答案)

高二联考数学注意事项:1.答题前,考生务必将自己的姓名、考生号、考场号、座位号填写在答题卡上。

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、再选涂其他答案标号。

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。

4.本试卷主要考试内容:人教A 版选择性必修第一册第一章至第二章2.3。

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.直线的斜率为( )A. B. C. D.2.若点到直线,则( )A.5B.C.或15D.5或3.已知点M 是点在坐标平面内的射影,则( )A.4.已知直线l 经过,两点,则( )A 直线l 的一个点斜式为B.直线l 的一个两点式为C.直线l 的倾斜角为锐角D.直线l 的一个方向向量为5.已知直线l 的斜率,则直线l 的倾斜角的取值范围是( )A. B.C. D.6.在空间四边形中,,,,且,,则( )A. B.5430x y -+=4545-5454-()1,2P -:3l y x a =-a =15-5-15-()4,5,6N Oxy OM = ()2,3-()1,2-()5323y x -=-+322312y x --=---()1,1-()k ∈π2π0,,π43⎡⎫⎛⎫⎪ ⎪⎢⎣⎭⎝⎭ 2π0,3⎡⎫⎪⎢⎣⎭π5π0,,π46⎡⎫⎛⎫⎪ ⎪⎢⎣⎭⎝⎭ π2π,43⎛⎫⎪⎝⎭OABC OA a = OB b = OC c = 3AM MC = 2ON NB = MN =122333a b c -++ 123434a b c -+-C. D.7.已知向量,,则向量在向量上的投影向量为( )C. D.8.在直四棱柱中,底面为等腰梯形,,,,E 为棱的中点,则点B 到平面的距离为( )B.二、选择题: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.若构成空间的一个基底,则下列向量不共面的是( )A.,, B.,,C.,, D.,,10.已知直线经过点,且在两坐标轴上的截距的绝对值相等,则直线l 的方程可能是( )A. B.C. D.11.空间内有三点,,,则( )A.B.的一个共线向量为C.点P 到直线D.点P 到直线的距离为122333a b c -+- 121434a b c -+- ()3,0,1a =- ()1,2,1b = a b 13b 15b 1111ABCD A B C D -ABCD AB CD ∥2AD DC BC ===14AB A A ==1AA 1EDB (),,a b c a b - b c + c a- a c - b c - a b - b a - a b c -- c a b a - c b- l ()2,1--10x y -+=30x y ++=250x y ++=20x y -=()1,2,3P ()3,2,1A ()1,3,2B 2PA PB ⋅= AB ()2,1,1--AB AB三、填空题:本题共3小题,每小题5分,共15分.12.已知某直线的一般式为,则此直线的倾斜角为______.13.已知的三个顶点,,,则边上的中线所在直线的一般式为______,边上的高所在直线的斜截式为______.14.已知点,,直线,M 为直线l上一动点,则的最小值为______.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.(13分)已知直线,直线.(1)若,求,之间的距离;(2)若,求,及x 轴围成的三角形的面积.16.(15分)如图,在四棱锥中,,,,,.(1)证明:平面.(2)求直线与平而所成角的正弦值.17.(15分)在三棱柱中,平面平面,,,,.(1)证明:平面.320x -+=ABC △()3,2A -()7,10B ()5,1C -AB AB ()1,4P ()6,3Q :30l x y +-=MP MQ +1:220l ax y -+=()2:120l x a y ---=12l l ∥1l 2l 12l l ⊥1l 2l P ABCD -224PB BC AD AB ====CD =AD BC ∥PA AB ⊥AD PB ⊥AD ⊥PAB PB PCD 111ABC A B C -11AAC C ⊥ABC 11AA AC =2AC =AC BC ⊥11AA AC ⊥1BB ⊥1A BC(2)若异而直线,所成角的余弦值为,求.18.(17分)(1)若直线l 沿x 轴向右平移5个单位长度,再沿y 轴向上平移2个单位长度后,回到原来的位置,求l 的斜率;(2)一束光线从点射出,与y 轴相交于点,经y 轴反射,求入射光线和反射光线所在直线的方程.19.(17分)在如图1所示的图形中,四边形为菱形,,和均为直角三角形,,,现沿,将和进行翻折,使(,在平面同侧),如图2.图1 图2(1)当二面角为90°时,判断与平面是否平行;(2)探究当二面角为120°时,平面与平面是否垂直;(3)在(2)的条件下,求平面与平面夹角的余弦值.1AB 1CA 13BC ()2,4P -()0,1Q -ABCD 60BAD ∠=︒PAD △BCQ △90PDA QCB ∠=∠=︒22PD AD CQ ===AD BC PAD △BCQ △PD QC ∥PD QC ABCD P AD B --DQ PAB P AD B --PBQ PBD PBD QBC。

贵州省毕节市大方县实验高级中学2013-2014学年高一下学期期中考试英语试题

贵州省毕节市大方县实验高级中学2013-2014学年高一下学期期中考试英语试题

贵州省毕节市大方县实验高级中学2013-2014学年高一下学期期中考试英语试题1. I am so busy at the moment that I will not _______ your discussion.A. joinB. join inC. take partD. attend2. He made little progress _______ his parents felt disappointed.A. such ; thatB. so ; thatC. such a ; thatD. so ; as3. —Why did you talk to the teacher after class?—I don’t understand _______ during the lecture.A. the problem did she tell usB. how did she sayC. that she was talking aboutD. what she was teaching4. Last night Li Ping watched the football match at home when he ________ his homework.A. need have doneB. must haven doneC. should have doneD. could have worked5. To improve your spoken English, you’ d better listen to the tape _______ .A. generallyB. fluentlyC. frequentlyD. gradually6. As you know, he left three years ago. He ______ to me ever since.A. didn’t writeB. hasn’t writtenC. don’t wroteD. hadn’t written7. — What did the teacher say? —He told me _again.A. not to lateB. didn’t be lateC. not to be lateD. to be not late8. The country has ______ too many wars, making her people suffer a lot.A. cut throughB. gone throughC. look throughD. came across9. he has made up his mind, no one can make him change it.A. OnceB. UnlessC. UntilD. As10. Mr. Black Shanghai in a few days. Do you know when the earliest plane ______ onSunday.A. is leaving ; takes offB. is leaves ; takes offC. is leaving ; is taking offD. leaves ; is taking off11. Hong Kong was once _____ by the British before she returned to China in 1997.A. commandedB. ruledC. managedD. settled12. Someone called me up in the middle of the night, but they hung up _____ I couldanswer the phone.A. asB. sinceC. beforeD. until13. _____ on facts, the report should be reliable.A. BasedB. BasingC. To be basedD. Be based14. It was at the school gate ______ he told me the exciting news.A. whenB. whereC. whichD. that15. —How often do you eat out? — ______ .A. As usualB. Have no ideaC. It dependsD. Generally speaking第二节完形填空(共15小题,每题2分,满分30分)阅读下面短文,从短文后各题所给的四个选项(A,B,C,D)中选出可以填入空白处的最佳答案When I was a boy, every holiday that I had seemed wonderful. My parents took me by train or by car to a hotel by the 41 . All day, I seem to remember, I 42 on the sands with strange43 children. We made houses and gardens, and 44 the tide (潮汐) destroy them. When the tide went out, we 45 over the rocks and looked down at the fish in the rock-pools.In those days the 46 seemed to shine always brightly 47 the water was always warm. Sometimes we left the beach and walked in the country, exploring ruined houses and dark woods and climbing trees. There were 48 in one's pockets or good places where one could buy ice-creams. Each day seemed a life-time.Although I am now thirty-five years old, my idea of a good 49 is much the same as it was. I 50 like the sun and warm sand and the sound of waves beating the rocks. I no longer wish to 51 any sand house or sand garden, and I dislike sweets. 52 , I love the sea and often feel sand running through my fingers.Sometimes I 53 what my ideal (理想的) holiday will be like when I am 54 . All I want to do then, perhaps, will be to lie in bed, reading books about 55 who make houses and gardens with sands, who watch the incoming tide, who make themselves sick on too many ices...16. A. sea B. lake C. mountain D. forest17. A. played B. slept C. sat D. stood18. A. moved B. excited C. worried D. nervous19. A. made B. brought C. watched D. heard20. A. rolled B. jumped C. turned D. climbed21. A. light B. sun C. moon D. lamp22. A. and B. yet C. but D. or23. A. sweets B. sand C. ice-creams D. money24. A. house B. holiday C. garden D. tide25. A. hardly B. almost C. still D. perhaps26. A. destroy B. fix C. use D. build27. A. But B. However C. Or D. Yet28. A. wonder B. feel C. understand D. believe29. A. strong B. weak C. young D. old30. A. children B. boys C. girls D. grown-ups第二部分阅读理解(共两节,满分50分)第一节(共20小题,每小题2分,满分40分)阅读下列短文,从每小题给的四个选项(A.B.C.D.)中,选出最佳选项。

贵州省毕节市实验高级中学2019_2020学年高二数学下学期期中试题文

贵州省毕节市实验高级中学2019_2020学年高二数学下学期期中试题文

贵州省毕节市实验高级中学2019-2020学年高二数学下学期期中试题文考试时间:120分钟 满分:150分一、选择题(每小题5分,共60分) 1. 设集合,,则(A ) (B ) (C ), (D )2. 棣莫弗公式(cos isin )cos isin nx x nx nx +=+(i 为虚数单位)是由法国数学家棣莫弗(1667-1754)发现的,根据棣莫弗公式可知,复数6(cos isin )55ππ+在复平面内所对应的点位于(A )第一象限 (B )第二象限 (C )第三象限 (D )第四象限3. 已知点(3,1)和(4,6)-在直线023=+-a y x 的两侧,则实数a 的取值范围是 (A )7a <或24>a (B )7=a 或24=a (C )724<<-a (D )247<<-a4. 已知1()3,1,()2,1,x a x a x f x a x ⎧-+<⎪=⎨⎪≥⎩是(,)-∞+∞上的减函数,那么实数a 的取值范围是 (A )(0,1) (B ) 1(0,)2 (C )11[,)62 (D )1[,1)65. 一个容量为100的样本,其数据分组与各组的频数如下表:则样本数据落在(]1040,上的频率为 (A )0.13 (B )0. 52 (C )0.39 (D )0.64 6. 在ABC ∆中,D 是BC 边上一点,AD AB ⊥,,,则 (A )(B (C(D 7. =︒︒+︒︒313sin 253sin 223sin 163sin (A )12-(B )12(C )- (D8. 已知抛物线x y 82=,过点(2,0)A )作倾斜角为π3的直线l ,若l 与抛物线交于B 、C 两点,弦BC 的中垂线交x 轴于点P ,则线段AP 的长为 (A )163 (B )83(C(D)9. 如图,在四面体ABCD 中,截面PQMN 是正方形,现有下列结论: ①AC BD ⊥ ②AC ∥截面PQMN ③AC BD = ④异面直线PM 与BD 所成的角为45 其中所有正确结论的编号是(A )①③ (B )①②④ (C )③④ (D )②③④ 10. 已知函数π()sin()(0,||)2f x x ωϕωϕ=+><的最小正周期是π,若其图象向右平移π3个单位后得到的函数为奇函数,则下列结论正确的是 (A )函数()f x 的图象关于直线2π3x =对称 (B )函数()f x 的图象关于点11π(,0)12对称 (C )函数()f x 在区间ππ,212⎡⎤--⎢⎥⎣⎦上单调递减 (D )函数()f x 在π3π,42⎡⎤⎢⎥⎣⎦上有3个零点 11. 已知函数)(x f y =是R 上的奇函数,函数)(x g y =是R 上的偶函数,且)2()(+=x g x f ,当20≤≤x 时,2)(-=x x g ,则)5.10(g 的值为 (A )1.5 (B )8.5 (C )-0.5 (D )0.512. 已知双曲线()2222:10,0x y C a b a b-=>>的左、右焦点分别为1F 、2F ,O 为坐标原点,点P 是双曲线在第一象限内的点,直线PO 、2PF 分别交双曲线C 的左右支于另一点M 、N ,若122PF PF =,且2120MF N ∠=,则双曲线的离心率为DAQBCPN M(A(B(C(D二、填空题(每小题5分,共20分)13. 已知x 轴为曲线3()44(1)1f x x a x =+-+的切线,则a 的值为 . 14. 已知n S 为数列{}n a 的前n 项和,22n n S a =-,则54S S -=_____________. 15. 在ABC ∆中,若1cos 3A =,则2sin cos22B C A ++的值为 ____________ . 16. 已知球O 的半径为r ,则它的外切圆锥体积的最小值为__________.三、解答题17. (本小题满分12分) 已知数列{}n a 的首项123a =,112n n n n a a a a +++=*(0,)n a n ≠∈N . (1)证明:数列1{1}n a -是等比数列; (2)数列{}nna 的前n 项和n S .18. (本小题满分12分)随着经济模式的改变,微商和电商已成为当今城乡一种新型的购销平台.已知经销某种商品的电商在任何一个销售季度内,每售出1吨该商品可获利润0.5万元,未售出的商品,每1吨亏损0.3万元.根据往年的销售经验,得到一个销售季度内市场需求量的频率分布直方图如图所示.已知电商为下一个销售季度筹备了130吨该商品.现以x (单位:吨,100150x ≤≤)表示下一个销售季度的市场需求量,T (单位:万元)表示该电商下一个销售季度内经销该商品获得的利润. (1)将T 表示为x 的函数,求出该函数表达式;(2)根据直方图估计利润T 不少于57万元的概率;(3)根据频率分布直方图,估计一个销售季度内市场需求量x 的平均数与中位数的大小(保留到小数点后一位).19. (本小题满分12分)如图所示,四棱锥S ABCD -中,SA ⊥平面ABCD ,90ABC BAD ∠=∠=︒, 1AB AD SA ===, 2BC =,M 为SB 的中点.(1)求证://AM 平面SCD ; (2)求点B 到平面SCD 的距离.20. (本小题满分12分)已知椭圆22:14x C y +=,1F 、2F 分别是椭圆C 的左、右焦点,M 为椭圆上的动点.(1)求12F MF ∠的最大值,并证明你的结论;(2)若A 、B 分别是椭圆C 长轴的左、右端点,设直线AM 的斜率为k ,且11(,)23k ∈--,求直线BM 的斜率的取值范围.21. (本小题满分12分)已知函数()(1)e x a f x x =+(e 为自然对数的底数),其中0a >. (1)在区间(,]2a-∞-上,()f x 是否存在最小值?若存在,求出最小值;若不存在,请说明理由.ADBCMS(2)若函数()f x 的两个极值点为1212,)x x x x <(,证明:2121ln ()ln ()212f x f x x x a ->+-+.22. (本小题满分10分)在平面直角坐标系xOy 中,直线1l :cos sin x t y t αα=⎧⎨=⎩,(t 为参数,π02α<<),曲线1C :2cos 4+2sin x y ββ=⎧⎨=⎩,(β为参数),1l 与1C 相切于点A ,以坐标原点为极点,x 轴的非负半轴为极轴建立极坐标系.(1)求1C 的极坐标方程及点A 的极坐标;(2)已知直线2l :π=6θρ∈R ()与圆2C:2cos 20ρθ-+=交于B ,C 两点,记△AOB 的面积为1S ,△2COC 的面积为2S ,求1221S S S S +的值.附:什么样的考试心态最好大部分学生都不敢掉以轻心,因此会出现很多过度焦虑。

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贵州省毕节市实验高级中学2020-2021学年高二上学期期中英语试题学校_________ 班级__________ 姓名__________ 学号__________一、阅读选择1. San Francisco,known as “The City by the Bay",packs a lot of fun.View of Golden Gate Bridge from Baker BeachAs one of the most famous sights in all of San Francisco,the Golden Gate Bridge is an absolute must-see. There are a few good spots to view it from,but my personal favorite is Baker Beach. This is also a particularly good spot to buy a meal from a local market,lay down a blanket and enjoy a picnic in the view of the famous bridge.Visit the Musee MecaniqueFisherman's Wharf(码头)is one of the most touristy areas of San Francisco and the overpriced,crowded sights can be tiring. But on Wharf 41,there's a unique attraction: the Musee Mechanique. This museum has one of the largest collections of old indoors game machines in the world,which offers great amusements. Entry is free and it's only a couple of quarters to play the games.Eat at Spark Social Food TrucksWith such a various population,it can be difficult to decide what cuisine to enjoy for dinner. Luckily at Spark Social Food Trucks in the Mission Bay,you can try a little bit of everything!Not only is the food delicious,but the food truck has a community feel with weekly events and free desserts.Have Tea at the Japanese Tea GardenIf you desire for some calm on the somewhat noisy streets of San Francisco,the Japanese Tea Garden is perfect. Located in Golden Gate Park,the garden looks exactly like Japan. And you can enjoy tea in the traditional tea house overlooking a lake.【小题1】What does the Musee Mechanique offer?A.Peace. B.Picnic spot.C.Amusements. D.Delicious foods.【小题2】Which spot treats tourists to free desserts?A.Wharf 41. B.The Mission Bay.C.The Baker Beach. D.Golden Gate Bridge.【小题3】What can we infer about the Japanese Tea Garden?A.Its tea is from Japan. B.It is a quiet place.C.It is the best tea house. D.It was built by Japanese.2. When I was six, I was so desperate to be out in nature. I’d be transported through David’s documentaries (纪录片) to all these amazing places. I did a PhD studying ants and butterflies, before getting a call from the BBC asking about my work for a show calledLife in the Undergrowth. I was so excited and immediately begged, “Please let me help!”Sir David himself came to film with me, so I got to meet him early on, and he is the loveliest person. Something was wrong with the car. He dived straight under it to try to fix it. His enthusiasm and passion was so real. The first trip I did with him was to Israel as an assistant producer, then in Madagascar. My dream came true.Usually, we spend six weeks filming for about three minutes of TV. What usually happens is that we’re going to film one thing but the animal ends up doing something else. We stay in whatever basic accommodation is the closest, because we can’t waste time on the way. So it’s rare that we stay in a hotel. Patience is the key, then learning and listening.Of course you encounter animals that could hurt you. There was a moment on Planet Earth where a wolf approached me and we had to pushit off with a camera. During filming for Seven Worlds we came acrossa beautiful but deadly snake, which casually came into our room. I took it up in a hat and put it back into the jungle. I still remember the chimps in Senegal jumped on a tree next to me and pushed it tothe ground. He was like saying, “You can stay here, but if I wantedto crash you, I could.”When we film certain animals, like lions for example, we must be vigilant. We know they will attack other creatures for their territories, but there’s something fascinating in the small creatures. I’ve always cared about these beautiful lives and the planet. I desperately want to preserve the creatures in the natural world.【小题1】Why did the author agree to work for BBC?A.He could work with David. B.He would travel abroad.C.He could study more animals. D.He would become famous.【小题2】Which of the following is the most important for the author’s job according to the text?A.Enthusiasm. B.Listening. C.Patience. D.Observation. 【小题3】What does paragraph 4 mainly talk about?A.Clever avoidance keeps animals away. B.Filming in nature has potential danger.C.The author prefers strange experiences. D.Violent behaviors are common in the wild.【小题4】What does the underlined word “vigilant” in the last paragraph mean?A.Cautious. B.Strict. C.Energetic. D.Powerful.3. No video games are allowed after 10 pm. It is not allowed to play games for more than 90 minutes on non-holidays. No more than 400 yuan per month is allowed to buy virtual weapons and costumes.The Chinese government has issued new regulations aimed atcontrolling teenager’s addiction to video games. Some officials believe that this problem is the reason why more and more young people are suffering from myopia (近视) and poor learning. The rules forbid users under the age of 18 from playing between 10 pm and 8 am. The rules demand that they shouldn’t play more than 90 minutes on non-holidays and more than 3 hours on weekends and other holidays. Officials have taken stronger measures to monitor large technology companies and promote them to help spread the advocated cultural values. The official media regarded some games as “poisons” and banned some violent games. In addition, minors (未成年人) must use real names and ID numbers when they log into the game. These regulations also limit the a-mount of money that teenagers can use to purchase virtual items such as weapons, clothing, and pets through the app.Analysts said that these regulations have been largely predicted by the industry and are unlikely to affect its earnings. However, young gamers may also find ways to bypass (绕开) the rules, such as using the parent’s phone number and ID number. “There will always be something imperfect,” said Daniel Ahmad, senior analyst at Niko Partners. However, he added that thanks to the regulations, China is now one of the most regulated video game markets in the world.Yang Bingben is the owner of an industrial technology company. He noticed that his son often p lays games that don’t require networking and is difficult to control. “We have something new to replace the games,” he said, “our thinking should be to build more stadiums, such as football stadiums and basketball courts.”【小题1】The new regulations will help Chinese teenagers with their ________.A.intelligence B.personalitiesC.study and eyesight D.constitutions and morals【小题2】What did Daniel Ahmad think of the regulations?A.They are adjustable. B.They are effective.C.They are creative. D.They are worthless.【小题3】What can be inferred from Yang Bingben’s words? A.Teenagers are spending more time in the stadiums.B.Football and basketball will be popular with teenagers.C.Getting rid of the addiction to video games is impossible. D.Doing sports helps prevent teenagers playing video games.【小题4】In which section of a newspaper can you read the text? A.Literature. B.Education.C.Fashion. D.Sport.4. Reading can be a social activity.Think of the people who belong to book groups.They choose books to read and then meet to discuss them.Now the website BookCrossing.com turns the page on the traditional idea of a book group.Members go on the site and register the books they own and would like to share.BookCrossing provides an identification number tostick inside the book.Then the person leaves it in a public place,hoping that the book will have an adventure,traveling far and wide with each new reader who finds it.Bruce Pederson,the managing director of BookCrossing,says,"The two things that change your life are the people you meet and books you read.BookCrossing combines both."Members leave books on park benches and buses,in train stations and coffee shops.Whoever finds their book will go to the site and record where they found it.People who find a book can also leave a journal entry describing what they thought of it.E-mails are then sent to the BookCrossers to keep them updated about where their books have been found.Bruce Peterson says the idea is for people not to be selfish by keeping a book to gather dust on a shelf at home.BookCrossing is part of a trend among people who want to get back to the"real"and not the virtual(虚拟).The site now has more than one million members in more than one hundred thirty-five countries.【小题1】Why does the author mention book groups in the first paragraph? ______A.To explain what they are.B.To introduce BookCrossing.C.To stress the importance of reading.D.To encourage readers to share their ideas.【小题2】What does the underlined word"it"in Paragraph 2 refer to?______A.The book.B.An adventure.C.A public place.D.The identification number.【小题3】What will a BookCrosser do with a book after reading it?______A.Meet other readers to discuss it.B.Pass it on to another reader.C.Keep it safe in his bookcase.D.Mail it back to its owner.【小题4】What is the best title for the text? ______A.Online Reading:A Virtual TourB.Electronic Books:A new TrendC.A Book Group Brings Tradition BackD.A Website Links People through Books二、七选五5. How to Forgive SomeoneForgiving someone who has done something wrong and hurt you canbe difficult and painful. 【小题1】 While this is natural, holding on to your anger causes you to become more painful. For this reason,it is necessary to choose to forgive, not for the other person, butfor yourself. The following suggestions will help you forgive someone.Release your anger. Let go of all the negative feelings you have towards the other person. Allow yourself to cry, go into nature, and talk to someone you trust, or do whatever helps you release these bad feelings. 【小题2】Give it time. Forgiveness does not come easily. 【小题3】 It is something that can be realized little by little every day.【小题4】 Once you've had time to cool down and think things through, you may clearly explain to the other person, in a calm manner, how his actions have hurt you and how they have made you feel. This is very important, or you will bottle up feelings of anger towards the other person, making true forgiveness impossible.Focus on the future. Once you have made the decision to forgive someone, you need to forget the past and focus on the future. 【小题5】 It might be just what your relationship needs.A.Get angry at someone.B.Tell the other person how you feel.C.Your first reaction is probably to hold on to your anger.D.It requires self-control, determination and, above all, time. E.Look on the bright side of the future and make a fresh start.F.If not, the bad feelings will cause you to become more painful. G.It's unnecessary to rebuild a relationship with anyone or let him go.三、完形填空6. During my lifetime, I’ve learnt something important:it’s good to learn new skills outside of your comfort zone. About seven years ago, I started learning how to paint as a ______. I was pretty terrible. Everything looked ________, and my colors weretotally off. My friends and colleagues suggested that I stop ________ my time on something I wasn’t good at. “________ on your day job,” they said.I kept at it — practicing, taking classes, finding the right______ who could guide and challenge me. I am now ________ “good”. Today, the same friends say I was born with this _______.The same thing __________ when I started piano and singinglessons a couple of years ago. Comments shifted from, “Stop wasting your time and focus on what you know,” to “You’ve got a musical gene.”These _______ originate from long-held beliefs that growth is usually not possible for adults. Even when there is evidence of learning, it can be _______ to inborn talent. Most scientific studies on adulthood focus on cognitive (认知) decline, rather than _______,suggesting that even scientists may think that development is limited in adulthood.A few recent studies suggest that ________ new skills, such as photography, for even three months may enhance the functioning of the brain in adults.I would take these studies one step further to argue that a(n)________ cause of cognitive decline is the fact that adults learn fewer new skills _______ to children. If we can _______ how to learn well as adults, then perhaps we can ________ cognitive decline.Adults are often _______ to go outside of their comfort zones. We fear looking _________ for making mistakes; we fear failure could cost us our jobs. Perhaps a reason why we suffer from cognitive decline is that we do not engage in learning new skills for many years.To better communicate with my German friends, I am starting to learn German. I’m ________ at the“liste ning and babbling (咿呀学语)” phase. Sure, some may laugh at an adult babbling, but I hope one day I can __________ German fluently, and inspire many other adults to learn like a baby.【小题1】A.hobby B.dream C.job D.measure【小题2】A.perfect B.bright C.dull D.enjoyable 【小题3】A.taking B.wasting C.putting D.getting【小题4】A.Count B.Depend C.Congratulate D.Focus【小题5】A.friends B.teachers C.colleagues D.partners 【小题6】A.concluded B.realized C.considered D.described 【小题7】A.talent B.spirit C.character D.power【小题8】A.happened B.found C.mentioned D.showed【小题9】A.suggestions B.achievements C.results D.comments 【小题10】A.reported B.attributed C.forced D.addicted 【小题11】A.failure B.change C.adaptation D.growth【小题12】A.catching B.arranging C.learning D.holding【小题13】A.important B.flexible C.permanent D.useful【小题14】A.prepared B.compared C.intended D.provided 【小题15】A.break out B.figure C.bring out D.give out 【小题16】A.prevent B.master C.interrupt D.influence 【小题17】A.unreasonable B.uncertain C.unwilling D.undoubted 【小题18】A.stupid B.upset C.crazy D.ugly【小题19】A.clearly B.presently C.continually D.occasionally 【小题20】A.write B.read C.listen D.speak四、用单词的适当形式完成短文7. 语法填空In Hangzhou,borrowing books from the library is now as simple as shopping online:click,pay and wait for delivery.The city’s public library recently launched a program on WeChat,【小题1】 popular Chinese messaging software,enabling 【小题2】(it)readers to check out books online and get them 【小题3】(deliver) to their homes at low prices.To enjoy the “Hangzhou enjoyable reading” service,one first needs to follow the library’s official WeChat account,【小题4】provides a list of books. After picking books,borrowers are required 【小题5】(present) their information such as their library membership cards,cellphone numbers and so on. The selected itemswill be delivered by express within three days after payments. Each reader can borrow up to 5 books once and 20 books at most 【小题6】total. The books can be kept for up to 40 days. Readers now can borrow the library’s most popular books in this way. The online books will be renewed and enriched 【小题7】(gradual) according to readers’ borrowing habits and 【小题8】(prefer). At the end of December,the library’s old and classic books 【小题9】(put) online too,making the total number of books available and bringing borrowers a lot of 【小题10】(convenient).五、短文改错8. 假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。

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