湖北省恩施土家族苗族自治州高级中学2019-2020学年高二下学期第二次周考英语试题+Word版含答案
注意事项:恩施高中2018 级高二下第二次双周考英语试卷(考试时间:120 分钟试卷满分:150 分)1.请先在试卷上做题,最后将答案提交到好分数。
2.一篇作文一张图片,竖着手机拍照,确保上传图片为正的。
3.按好分数要求提交,严格遵守时间节点。
第I 卷第一部分: 听力(共两节,20 小题;每小题 1.5 分,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.What did the woman leave in the taxi?A. A sweater.B. A T-shirt.C. A hat.2.How much did the woman pay for the dress?A.10 dollars.B. 30 dollars.C. 40 dollars.3.What does the man often put on a Christmas tree?A. A doll.B. A star.C. An angel.4.What does Gina tell Sam to do?A.Scratch his arm even more.B.Buy some special medicine.C.Sleep with the windows shut.5.What does the man imply about the woman in the end?A.She always buys new clothes.B.She should do the laundry herself.C.She needs a new washing machine.第二节(共15 小题;每小题 1. 5 分,满分22. 5 分)听下面5 段对话或独白。
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。
听每段对话或独白前,你将有时间阅读各个小题,每小题5 秒钟;听完后,各小题将给出 5 秒钟的作答时间。
每段对话或独白读两遍。
听下面一段对话,回答第 6 和第7 两个小题。
6.What does the woman want the man to do?A.Put off his spring break.B. See some western art.C. Drive her to the exhibit7.What is the relationship between the speakers?A.Mother and son.B. Brother and sister.C. Taxi driver and passenger听下面一段对话,回答第8 至第10 三个小题。
8.Why did Teresa raise her hand the first time?A.She had a question.B.She needed to relax her arm.C.She wanted to use the bathroom.9.What did Mr. Johnson ask the class to do?A.Turn to page 55.B. See a famous painting.C. Ask questions later on.10.When will the film be shown?A.After Teresa gets back.B. At the end of class.C. In more than two minutes.听下面一段对话,回答第11 至第13 三个小题。
11.What did the man start doing two years ago?A.Teaching.B. Raising money.C. Saving wild animals12.Why is the man tired?A.He stayed up sending emails.B.He took care of a bear all night.C.He has a lot of homework to grade.13.What does the man say about the bears at last?A. They are dirty.B. They are cool.C. They are lovely.听下面一段对话,回答第14 至第16 三个小题。
14.Why isn't Cindy studying for the test?A. She is too tired.B. She has a headache.C. She can't find her book.15.What does Bob offer to do for Cindy?A. Call her a taxi.B. Drive her to the doctor's.C. Give her some hot water.16.Where does the conversation take place?A. At home.B. At a doctor's.C. In a classroom.听下面一段独白,回答第17 至第20 四个小题。
17.Where is Wendy from?A. The UK.B. Italy.C. The USA.18.What are Christmas crackers?A. Toys with loud sound.B. A kind of Christmas food.C. Paper tubes with a gift inside.19.What do all three British Christmas desserts have in common?A.They all look and taste about the same.B.They are all made out of nuts and dried fruit.C.They are all similar to the American fruitcake.20.What is the speaker mainly talking about?A.Interesting plays.B. A special Christmas dinner.C.Christmas traditions in the UK.第二部分阅读理解(共两节,满分35 分)第一节(共10 小题;每小题 2.5 分,满分25 分)阅读下列短文,从每题所给的A、B、C 和D 四个选项中,选出最佳选项,并在答题纸上将该项涂黑。
AOn a Saturday afternoon, Tasi Lama had just finished lunch and was going to wash his hands when the ground under his feet started shaking violently. Objects began to fall down from overhead and rising above the crashes, he could hear terrified screams all around him. Several months later, the painter from Nepal’s Kathmandu Valley remembers that day more vividly than his wedding day or the birth of his son.It was on April 25, 2015 that an earthquake hit Nepal, the former Himalayan kingdom out of sight between its giant neighbors China and India, 81 years after a similar disaster. This killer quake and after-shocks that continued for more than a month afterward killed over 8, 000 people, destroyed thousands of houses, and ruined an economy already damaged by many other reasons.It was also of consequence for the ancient art style Nepali painters such as Lama have been practicing for generations. “We left our homes and lived in the open fields outside the city, under tarpaulins(防水油布)for a month, ”Lama said. “Many of the houses, built of mud and bricks, were in ruins and the aftershocks continued, though less frequently. One day, I went to my showroom to get some of the paintings out and the Earth started shaking again. I dropped everything and ran out for my life.”Dinesh Lama, a 32-year-old artist from Nepal ’s capital city, Kathmandu, said his Boudha Stupa Thangka Center, which functions as his showroom as well as his studio, has remained shut since the earthquake, as his artisans are too traumatized(心理受到创伤的)to take up the brush again. “We lived in temporary tents for more than a month,”he said. “When they try to sit inside the studio and paint, fear makes their hands shake. Luckily, we have got a lot of aid from China. I believe we will come back to our home soon. ”21.What can we conclude from the second paragraph?A.The April 25 earthquake made Nepal disappear for long.B.Nepal also suffered a serious disaster due to the 1934 quake.C.This quake caused more deaths than the one 81 years ago.D.The earthquake is the only reason for Nepal being backward.22.What made Dinesh Lama worried most?A.That his showroom had been totally destroyed.B.That his artisans were incapable of working.C.That he couldn’t sell his works as usual.D.That he would never pick up his brush to draw.23.What is the passage mainly about?A.An earthquake that brought damage to ancient art.B.An artist who is highly optimistic.C.A great country that offers timely help.D.A lesson that urges us to be brave.BItaly and China has agreed to jointly advance the construction of the Belt and Road Initiative (BRI) ( 一带一路), which aims to build a trade and construction network to connect Asia with Europe and Africa along ancient trade routes. Italy will use this opportunity to cooperate with China to develop its northern ports and the InvestItalia program, and promote cooperation in all fields.Despite some doubt, the BRI has developed into one of the world's largest cooperation platforms and become a hot public good. More than 120 countries and 29 international organizations have signed agreements with China up to date, bringing all sorts of development opportunities to parties of the BRI, including the construction of Kenya's first high-speed expressway, the first cross-sea bridge in the Maldives, and the formation of the car industry in Belarus.The inclusion of Italy into the BRI makes Italy the first G7 country to formally join the Initiative, and sets a new milestone in the process of building the Belt and Road.What makes the BRI unique is that it is an urge for win-win cooperation rather than zero-sum competition. As everyone knows, the BRI has its origin in the ancient Silk Road trade route that linked China with many places in the world, including the Italian cities of Rome and Venice. Italy is a natural fit for the ambitious project because of its historical connections with China, and also because of the need to be open rather than closed, to cooperate rather than confront. In this fast-changing world, seeking win-win progress is the best path forward for all countries.In China, it is said that without a big breakthrough in thinking, there will be no big leap in practice; and without a big leap in practice, there will be no great development. A number of Chinese ideas and initiatives have been formed with the goal of building a community of common fate in mind. Under the BRI, we can expect China to deepen policy cooperation, facilities connectivity, free trade, financial combination, and people-to-people bonds.The revival of China as a great power is a blessing to the world, contributing to the building of a better world.24.How does the author develop the second paragraph?A. By giving examples.B. By making comparisons.C. By reasoning and analyzing.D. By describing important events.25.What can we learn from the last but one paragraph?A. China has become a superpower.B. China puts others' interests before its own.C. China has been seeking development for allD. China is well-known for its traditional ideas.26.What does the underlined part “zero-sum competition” in Paragraph 4 probably mean?A.Only one participant will winB. None of the participants will winC. All participants will gain somethingD.Some participants will win at the cost of others27.What is the best title of the passage?A. The revival of China as a great powerB. Italy and China reached an agreement on BRIC. A milestone in building BRI has been setD. Construction along ancient trade routesCApple and Microsoft each launched new products. One company astonished everyone. The other made people sleepy. Can you guess which was which? You probably guessed wrong. Because Apple, famous for its creative products, was the tech giant whose new product caused a collective shrug. While Microsoft, which stole a move out of the Apple Playbook, won cheers from high-end, creative-class consumers like business analysts, media designers and music producers.As Hayley Tsukayama remarked at The Washington Post, the Surface Studio, one of Microsoft's new products, is really just a super-sized version of the Surface Books product that Microsoft has been selling for years. But if you've ever watched science fiction movies like Minority report--where Tom Cruise seems to operate pictures and data hanging on mid-air by touching them, spreading his fingers to increase on details, and sending files and information sliding from one folder to another with a click of the fingers, you can see how Microsoft is trying to show the same experience.Meanwhile, apple's new products were almost like some fine promotions for its Apple TV. They boast that the new Macbook Pros has a smaller size and more functions, and a new touch screen bar on laptop keyboards where function keys used to be.So what's going on? In many ways, Apple is focusing on attracting the average consumers who have been attracted by Microsoft. And Microsoft is focusing on targeting the high-end professionals Apple has historically been associated with. You can even see this is the companies' ad campaigns: Microsoft's ads stress imagination and creativity, while Apple ’s commercial chief performance and convenience of itsMacbooks.So Apple is trying to control the world of devices and laptops from the top down, starting with the high-end market and moving on to appeal to a broader base of consumers. Microsoft, having already strengthened itself within the bigger low-end market, is now attempting the opposite with a bottom-up strategy. Will these succeed? Time will tell...28.Why does the author mention the science fiction movie in Paragraph 2?A.To show how trendy Microsoft’s new products are.B.To tell us Microsoft's new products can be used in movies.C.To encourage more people to see the science fiction movie.D.To show Microsoft’s new products are inspired by the movie.29.What can we infer from the last two paragraphs of the text?A.Apple is changing its focus on consumer groups from average to high-end ones.B.Microsoft is changing its focus on consumer groups from high-end to average ones.C.The two companies are adopting totally different business strategies from their own before.D.The two companies are facing fierce competition with each other.30.In which section of a newspaper can we most probably read this passage?A.Leisure and Entertainment.B.Economics and Business.C.Culture and Education.D.Life and Fashion.第二节(共 5 小题;每小题 2 分,满分10 分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。
湖北省恩施土家族苗族自治州高级中学2018级高二下学期第二次数学考试(教师版)
第 1 页,共 8 页
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恩施高中 2018 级高二下学期第二次双周考数学试题
【教师版】
卷面总分:150 分
考试时长:120 分钟
出卷人:杜祥
审题人:刘飞
祝考试顺利
一.选择题(本大题共 12 小题,每小题 5 分,共 60 分)
1. A52 C53 的值为( )【答案】D
A. 0
B. -40
C. -10
D. 10
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湖北省恩施土家族苗族自治州2019-2020年度高二下学期期中数学试卷(理科)(I)卷
湖北省恩施土家族苗族自治州2019-2020年度高二下学期期中数学试卷(理科)(I)卷姓名:________ 班级:________ 成绩:________一、选择题 (共12题;共24分)1. (2分)已知(a,b∈R),其中i为虚数单位,则a+b=()A .B . 1C . 2D . 32. (2分)二项式的展开式中含项的系数为()A . 10B .C . 40D .3. (2分) (2016高二下·海南期末) 如果X~B(1,p),则D(X)()A . 有最大值B . 有最大值C . 有最小值D . 有最小值4. (2分)将4本不同的书全部分给3个学生,每个学生至少一本,则不同的分法种数()种.A . 12B . 36C . 72D . 1085. (2分)反证法证明的关键是在正确的假设下得出矛盾,这个矛盾可以是()①与已知矛盾;②与假设矛盾;③与定义、定理、公理、法则矛盾;④与事实矛盾A . ①②B . ②③C . ①②③D . ①②③④6. (2分)某研究机构对儿童记忆能力x和识图能力y进行统计分析,得到如下数据:记忆能力x46810识图能力y3568由表中数据,求得线性回归方程为,若某儿童的记忆能力为12时,则他的识图能力为()A . 9.2B . 9.5C . 9.8D . 107. (2分)(2016·城中模拟) 已知函数f(x)=Acos(ωx+φ)(A>0,ω>0,0<φ<π)为奇函数,该函数的部分图象如图所示,△EFG是边长为2的等边三角形,则f(1)的值为()A .B .C .D .8. (2分)已知(x2﹣)9(a∈R)的展开式中x6的系数为﹣,则(1+sinx)dx的值等于()A . 4﹣2cos2B . 4+2cos2C . ﹣4+2cos2D . 49. (2分) (2016高三上·连城期中) 设函数F(x)= 是定义在R上的函数,其中f(x)的导函数为f′(x),满足f′(x)<f(x)对于x∈R恒成立,则()A . f(2)>e2f(0),f(2012)<e2012f(0)B . f(2)<e2f(0),f(2012)<e2012f(0)C . f(2)>e2f(0),f(2012)>e2012f(0)D . f(2)<e2f(0),f(2012)>e2012f(0)10. (2分)(2017·嘉兴模拟) 随机变量X的分布列如下表,且E(X)=2,则D(2X﹣3)=()X02aP pA . 2B . 3C . 4D . 511. (2分) (2016高二下·新洲期末) 已知三个正态分布密度函数(x∈R,i=1,2,3)的图象如图所示,则()A . μ1<μ2=μ3 ,σ1=σ2>σ3B . μ1>μ2=μ3 ,σ1=σ2<σ3C . μ1=μ2<μ3 ,σ1<σ2=σ3D . μ1<μ2=μ3 ,σ1=σ2<σ312. (2分)直线x+ y+1=0的斜率、横截距分别是()A . ,﹣B . ﹣,﹣1C . ﹣,﹣D . ,1二、填空题: (共4题;共4分)13. (1分)如图所示,靶子由一个中心圆面Ⅰ和两个同心圆环Ⅱ、Ⅲ构成,射手命中Ⅰ、Ⅱ、Ⅲ的概率分别为0.25、0.20、0.35,则不命中靶的概率是________14. (1分) (2017高一上·厦门期末) 空气质量指数(AirQualityIndex,简称AQI)是定量描述空气质量状况的指数.AQI数值越小,说明空气质量越好.某地区1月份平均AQI(y)与年份(x)具有线性相关关系.下列最近3年的数据:年份2014201520161月份平均AQI(y)766848根据数据求得y关于x的线性回归方程为 =﹣14x+a,则可预测2017年1月份该地区的平均AQI为________.15. (1分)设f(x)=, x=f(x)有唯一解,f(x0)=, f(xn﹣1)=xn , n=1,2,3,…,则x2015=________16. (1分) (2016高三上·承德期中) 已知函数f(x)=x3+ax2+bx﹣a2﹣7a在x=1处取得极大值10,则a+b 的值为________.三、解答题: (共6题;共50分)17. (10分) (2017高一下·伊春期末) 某种产品的广告费用支出与销售额之间有如下的对应数据:(参考公式:用最小二乘法求线性回归方程系数公式 )(1)求回归直线方程;(2)据此估计广告费用为10时,销售收入的值。
湖北省恩施土家族苗族自治州高级中学2019-2020学年高二下学期第二次周考英语试题
注意事项:恩施高中2018 级高二下第二次双周考英语试卷(考试时间:120 分钟试卷满分:150 分)1.请先在试卷上做题,最后将答案提交到好分数。
2.一篇作文一张图片,竖着拍照,确保上传图片为正的。
3.按好分数要求提交,严格遵守时间节点。
第I 卷第一部分: 听力(共两节,20 小题;每小题 1.5 分,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.What did the woman leave in the taxi?A. A sweater.B. A Tshirt.C. A hat.2.How much did the woman pay for the dress?A.10 dollars.B. 30 dollars.C. 40 dollars.3.What does the man often put on a Christmas tree?A. A doll.B. A star.C. An angel.4.What does Gina tell Sam to do?A.Scratch his arm even more.B.Buy some special medicine.C.Sleep with the windows shut.5.What does the man imply about the woman in the end?A.She always buys new clothes.B.She should do the laundry herself.C.She needs a new washing machine.第二节(共15 小题;每小题 1. 5 分,满分22. 5 分)听下面5 段对话或独白。
2019年湖北省恩施市土家族苗族自治州第二高级中学高二数学文模拟试题含解析
2019年湖北省恩施市土家族苗族自治州第二高级中学高二数学文模拟试题含解析一、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. 设a,b是非零实数,若a>b,则一定有()A.B.C.D.参考答案:B【考点】不等式的基本性质.【分析】利用基本不等式的性质即可判断出正误.【解答】解:A.取a=,b=﹣1,则a+=﹣,b+=﹣1+2=1,不成立;B.∵a,b是非零实数,a>b,∴=>0,成立;C.取a=2,b=﹣1不成立;D.取a=2,b=﹣1,不成立.故选:B.2. 已知圆:及直线,当直线被截得的弦长为时,则()A. B. C. D.参考答案:C 解析:3. 已知函数的导函数为,且满足关系式,则的值等于()A. B. -1 C. 4 D.2参考答案:A略4. 四棱锥P-ABCD的底面是单位正方形,侧棱PB垂直于底面,且PB=,记θ=∠APD,则sinθ= ()A、 B、 C、 D、参考答案:C5. 如图,平行四边形ABCD中,AB⊥BD,沿BD将△ABD折起,使面ABD⊥面BCD,连接AC,则在四面体ABCD的四个面中,互相垂直的平面的对数为()A.1 B.2 C.3 D.4参考答案:C6. 椭圆的焦距为A.1 B.2 C.3 D.4参考答案:B7. 在中,角所对的边分别是,且,则A. B.C. D.参考答案:C略8. 一个几何体的三视图如图所示(单位长度: cm), 则此几何体的表面积是()A.(20+4)cm2B.21 cm2C.(24+4)cm2D.24 cm2参考答案:A9. 下列四个命题中正确的是()A.若a>b,c>d,则ac>bdB.若ab≥0,则|a+b|=|a|+|b|C.若x>2,则函数y=x+有最小值2D.若a<b<0,则a2<ab<b2参考答案:B【考点】不等式的基本性质.【分析】对4个选项分别进行判断,即可得出结论.【解答】解:A,均为正数,才能相乘,不正确;B,若ab≥0,则|a+b|=|a|+|b|,正确;C,若x>2,则函数y=x+有最小值2+=,不正确;D,a=﹣2,b=﹣1时不成立.故选B.【点评】本题考查不等式的性质,考查学生的计算能力,比较基础.10. 下列四个正方体图形中,,为正方体的两个顶点,,,分别为其所在棱的中点,能得出平面的图形的序号是()①②③④A.①、②B.①、③C.②、③ D.②、④参考答案:B略二、填空题:本大题共7小题,每小题4分,共28分11. 甲、乙、丙射击命中目标的概率分别为、、,现在三人同时射击目标,且相互不影响,则目标被击中的概率为.参考答案:目标被击中的概率等于1减去甲、乙、丙三人都没有击中目标的概率,故目标被击中的概率是.12. 从双曲线的左焦点引圆的切线,切点为,延长交双曲线右支于点,若为线段的中点,为坐标原点,则=参考答案:1略13. 已知变量满足约束条件,则目标函数的最大值是.参考答案:3略14. 复数的共轭复数是______参考答案:-2+i15. 1-3+5-7+9-11+…-19=_____.参考答案:-1016. 将两张卡片排在一起组成两位数,则所组成的两位数为奇数的概率是参考答案:17. 函数f(x)=x﹣lnx的单调减区间为.参考答案:{x|0<x<1}【考点】利用导数研究函数的单调性.【分析】先求函数f(x)的导数,然后令导函数小于0求x的范围即可.【解答】解:∵f(x)=x﹣lnx∴f'(x)=1﹣=令<0,则0<x<1故答案为:{x|0<x<1}三、解答题:本大题共5小题,共72分。
湖北省恩施州高级中学2019-2020学年高一下学期第二次月考化学试题
恩施高中 2019 级高一年级下学期第 2 次线上考试 化学试题注意事项:⒈本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。
上传答案前,考生务必输入自己的姓名、 班级。
2.请在考试前调试好自己的网络,保持网络畅通;3.【在线答题卡】区域内,客观题在线点选(考生答题完成后,将该部分答案交由家长完成在线, 主观题拍图上传;4.主观题答案交由家长分题块拍照上传至好分数平台相应题块中,考生指导家长上传;5.写在本试卷上无效。
可能用到的相对原子质量:H 1 C 12 N 14 O 16 Al 27 Ca 40 Fe 56 Cu 64 第Ⅰ卷(共 20 小题,计 60 分) 一、选择题(共 20 小题,60 分) 1.化学与生产生活社会密切相关。
下列说法正确的是( ) A .一次性医用外科口罩的核心功能层熔喷布以纯净物聚丙烯为主要原料制成 B .在“新冠肺炎战疫”中,将 84 消毒液和医用酒精混合使用,消毒效果更佳 C .纳米铁粉可以高效地去除被污染水体中的Pb 2+、Cu 2+、Cd 2+、Hg 2+等重金属离子,其本 质是纳米铁粉对重金属离子较强的物理吸附 D .绿色化学的核心是从源头上减少和消除化工生产对环境的污染 2.短周期元素 X 、W 、Y 和 Z 的原子序数依次增大。
元素 W 的焰色为黄色,X 的一种核素 在考古时常用来鉴定一些文物的年代,元素 Y 是地壳中含量最丰富的金属元素,Z 原子的 最外层电子数是其电子层数的 2 倍。
下列说法错误的是( ) A .已知含氧酸的酸性:H 2ZO 3>H 2XO 3,则 Z 的非金属性强于 X B .化合物 X Z 2 各原子均满足 8 电子的稳定结构 C .若单质W 失火,不能用泡沫灭火器扑灭 D .通常采用电解法制备单质 Y 及其同周期的金属单质 3.下列说法不正确的有几个( ) ①质子数相同的微粒一定属于同一种元素 ②同一元素的核素种数由中子数决定 ③18gH 2O 中含有的中子数为 8N A ④标准状况下,等体积 C H 4 和 S O 3 所含的分子数相同 ⑤通过化学变化可以实现 16O 与 18O 之间的相互转化A .2 个B .3 个C .4 个D .5 个4.下列实验中,所采取的分离方法与对应原理都正确的是()5.化学与生产、生活有关,下列说法正确的是()A.将淀粉在稀硫酸中水解的最终产物与银氨溶液混合,水浴加热后可出现光亮的银镜B.蔗糖和麦芽糖互为同分异构体,两者水解产物可与新制的C u(OH)2 悬浊液反应C.向鸡蛋清溶液中加入少量C uSO4 溶液出现浑浊,说明蛋白质发生了盐析D.尼龙绳、宣纸、棉衬衣这些生活用品中都主要由合成纤维制造6.类推的思维方法在化学学习和研究中有时会产生错误的结论,因此类推出的结论最终要经过实践的检验才能决定其正确与否。
湖北省恩施土家族苗族自治州高级中学2019-2020学年高二下学期第五次周考数学试题(含答题卡及答案)
有一个公共点, 作图如下:
函数 y lnx 在 x=1 处的切线 m 方程为 y= x - 1,
函数 y x2 3x 2 在 x=1 处的切线 n 方程为 y= - x 1,
由图易得 a 的取值范围是 1, 0 1,
11.A
请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效 1
请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效
请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效
20. (本小题满分 12 分)
请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效
21. (本小题满分 12 分)
2
②甲第三局负、第四局胜为
A2,P(A2)=
1 2
1 2
1 4
;③第三局、第四局甲负,第五局甲胜为
A3,P(A3)=
1 2
1 2
1 2
1 8
,
7
1
所以甲胜的概率 P=P(A1)+P(A2)+P(A3)= 8 ,乙胜的概率则为 8 ,故选 B.
10.A
g x 恰有 1 个零点等价于 f x 图像与直线 y=a(x - 1)
当“数”排在第三节时,当“射”和“御”两门课程排在第一、二节时有 A22 A33 12 种排法,当“射”和“御”
两门课程排在后三节的时候有 A21 A22 A33 24 种排法,
所以满足条件的共有 48 36 12 24 120 种排法,
7.C ∵(x2﹣x﹣2)5=(x+1)5(x﹣2)5,
2018 级高二下第 5 次双周考数学试卷 20200606
一、选择题(本大题共 12 个小题,每小题 5 分,共 60 分)
湖北省恩施土家族苗族自治州高级中学2019-2020学年高二下学期第三次周考语文试题(PDF版)
2018级高二下学期第三次线上周考语文考试试题满分:150分考试时间:150分钟上传时间:20分钟考生注意:1.考试时间:19:00-21:30,上传时间:21:30-21:502.选择题在线提交。
主观题答案规范写在纸质答题卡上,拍照上传至好分数。
3.学生上传主观题时注意:①一小题一传,使用编辑剪裁,只保留本题外框及框中答案内容;②手机竖屏拍照,以保证上传图片是正向,若图片不是正的,请旋转至正向后再上传;③手机在答案正上方拍照,必须保证图片清晰,因上传图片模糊导致无法辨识的0分;④尽量一题只上传一张规范图片,作文需要上传多张图片的,请在编辑时在左上角标注阿拉伯数字序号,依次上传,方便老师批改。
一、现代文阅读(36分)(一)论述类文本阅读(9分,每小题3分)阅读下面的文字,完成1~3题。
守望自己的那片麦田——都市民谣的时代气息和艺术魅力①民谣已然成为乐坛清流。
最近,赵雷的都市民谣《成都》引发了人们的广泛共鸣。
此前,李昊瀚的《一定赶来》诉说游子回家团圆的思念,传递出温暖人心的力量。
《天真热》曲调诙谐幽默,充满西安风情。
②民谣在我国的历史很长。
民间音乐本身就是歌谣体,如脍炙人口的《四季歌》就是民谣。
流行音乐兴起之后,人们听的民谣主要是美国的乡村民谣。
美国的乡村民谣是站在城里讲乡下,有一种怀乡的情绪。
和美国乡村民谣不一样,我国的民谣没有对乡村生活的向往,讲的都是自己身边尤其是都市的生活,《成都》就是这样的歌曲。
③“古有采诗之官,王者所以观风俗,知得失,自考正也。
”当代的民谣也有同样的功能,比如《常回家看看》,加深了人们对空巢老人的关注。
④都市民谣多以北京、深圳、南京等为吟唱对象,简单纯粹、形式不拘,呈现出清新自由、幽默诙谐、敏感细腻、深情内敛的创作特色。
这些民谣对都市的认知与想象,连同对故乡的回忆与热爱一起,勾勒出一幅中国当代青年不断回归精神家园的生动图景。
⑤民谣为什么能够引起人们的广泛共鸣?中国艺术研究院研究员陈乾认为,一个重要原因就是“在万事求快、信息爆炸的‘智能时代’,民谣给人们带来了一种时间的感觉”。
2019-2020学年湖北省恩施土家族苗族自治州高级中学高二下学期第三次周考英语试题 Word版 听力
注意事项:恩施高中2018 级高二下第三次双周考英语试卷(考试时间:120 分钟试卷满分:150 分)1.请先在试卷上做题,最后将答案提交到好分数。
2.一篇作文一张图片,竖着手机拍照,确保上传图片为正的。
3.按好分数要求提交,严格遵守时间节点。
第I 卷第一部分: 听力(共两节,20 小题;每小题 1.5 分,满分30 分)第一节(共 5 小题;每小题 1.5 分,满分7.5 分)第一部分:听力(共两节,满分 30 分)做题时,先将答案划在试卷上。
录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节(共5 小题;每小题 1.5 分,满分 7.5 分)1.What does the woman mean?A.She is willing to go on a picnic tomorrow.B.She likes going on a picnic every week.C.The weather will not be good for a picnic.2.How many bills has the man got?A. 5.B. 8.C. 20.3.How long does it take the man to drive home during rush hour?A.About 5 minutes.B.About 20 minutes.C.About 15 minutes.4.What happened to the man this morning?A.He got angry.B.He overslept.C.He forgot to set the clock.5.Where are the speakers at the moment?A.In the library.B.In the classroom.C.In the hospital.第二节(共15 小题;每小题1.5 分,满分22.5 分)请听第 6 段材料,回答第 6 至8 题。
湖北省恩施土家族苗族自治州2019-2020年度高二上学期期中数学试卷(I)卷
湖北省恩施土家族苗族自治州2019-2020年度高二上学期期中数学试卷(I)卷姓名:________ 班级:________ 成绩:________一、填空题 (共12题;共12分)1. (1分)(2020·南京模拟) 若数列是公差不为0的等差数列,、、成等差数列,则的值为________.2. (1分)在等比数列{an}中,若an>0,a8= ,则a5+a11有最小值是________.3. (1分) (2018高二上·海安期中) 已知向量a,b满足,,则a·b = ________4. (1分)=________5. (1分) (2017高三上·孝感期末) 已知向量=(3,﹣2),=(﹣5,﹣1),则=________.6. (1分) (2016高一下·海珠期末) 已知等比数列{an}的公比为正数,且a1=2,4a2•a8=a42 ,则a3=________.7. (1分) (2016高一下·上栗期中) 已知Sn是等差数列{an}的前n项和,且S8>S9>S7 ,给出下列四个命题:①d<0;②S16<0;③数列{Sn}中的最大项为S15;④|a8|>|a9|.其中正确命题有________.8. (1分) (2018高一下·珠海月考) 如图,在矩形ABCD中,AB=,BC=2,点E为BC的中点,点F 在边CD上,若· =,则· 的值是________.9. (1分) (2017高三上·古县开学考) 已知在△ABC中,∠A= ,AB=2,AC=4, = , = ,= ,则的值为________.10. (1分)已知数列{an},{bn}满足a1=, an+bn=1,bn+1=(n∈N*),则b2015=________11. (1分) (2017高一下·淮安期末) 已知△ABC中,内角A,B,C的对边分别为a,b,c,若a,b,c成等比数列,则的取值范围为________.12. (1分)设Sn为数列{an}的前n项和,若Sn=8an﹣1,则=________二、选择题 (共4题;共8分)13. (2分) (2016高一下·南平期末) 设向量 =(1,2), =(m,m+1),∥ ,则实数m的值为()A . 1B . ﹣1C . ﹣D . ﹣314. (2分) (2018高一下·百色期末) 等差数列的前项和为,若,则()A .B .C .D .15. (2分) (2019高二上·辽宁月考) 下面四个判断中,正确的是()A . 式子,当时为1B . 式子,当时为C . 式子,当时为D . 设,则16. (2分)(2017·青岛模拟) 已知 x>1,y>1,且 lg x,,lg y 成等比数列,则 xy 有()A . 最小值10B . 最小值C . 最大值10D . 最大值三、解答题 (共5题;共35分)17. (5分)已知等差数列{an}的前n项的和记为Sn .如果a4=﹣12,a8=﹣4.(1)求数列{an}的通项公式;(2)求Sn的最小值及其相应的n的值.18. (5分)(2017·江苏) 已知向量 =(cosx,sinx), =(3,﹣),x∈[0,π].(Ⅰ)若∥ ,求x的值;(Ⅱ)记f(x)= ,求f(x)的最大值和最小值以及对应的x的值.19. (10分) (2018高一下·大同期末) 已知数列的前项和满足: .(1)求数列的通项公式;(2)设数列满足,求数列的前项和20. (5分)已知:平面上两个不相等向量,=(3,4),=(x+1,2x)(1)若(+)⊥(﹣),求实数x;(2)若•=14,求与的夹角的余弦值.21. (10分) (2016高二上·杨浦期中) 已知等比数列{an}的首项为1,公比为q,它的前n项和为Sn;(1)若S3=3,S6=﹣21,求公比q;(2)若q>0,且Tn=a1+a3+…+a2n﹣1,求.参考答案一、填空题 (共12题;共12分)1-1、2-1、3-1、4-1、5-1、6-1、7-1、8-1、9-1、10-1、11-1、12-1、二、选择题 (共4题;共8分)13-1、14-1、15-1、16-1、三、解答题 (共5题;共35分) 17-1、18-1、19-1、19-2、20-1、21-1、21-2、。
湖北省恩施土家族苗族自治州高级中学2019-2020学年高二下学期第三次周考语文试题(PDF版)答案
2018级高二下语文第三次周考答案1.【答案】D【解析】A项,“以《成都》为代表的民谣,讲述都市生活,充满着地域风情”曲解文意,把个体的特征变为共同的特征。
B项,“则是纯粹地讲身边的都市”曲解文意,原文是“我国的民谣没有对乡村生活的向往,讲的都是自己身边尤其是都市的生活”。
C项,“中国民谣”偷换概念,原文是“都市民谣多以……生动图景”。
2.【答案】C【解析】C项,“因为它代表了都市民谣的最高水平”无中生有。
3.【答案】B【解析】B项,选项以偏概全,提高民谣水平,除了“从教育、制作、营销等方面对音乐产业链进行升级”,还有其他因素。
【答案】4. C 5. B6. ①弯折次数世界第一。
中国企业维信诺生产的“动态折叠屏”,弯折次数的技术处于全球最领先水平,并有产品全面量产。
②柔性书籍世界唯一。
中国企业维信诺生产的“柔性电子书”,全球唯一可在卷曲或折叠后随身携带。
③柔性技术世界领先。
中国企业深圳柔宇科技的柔性显示屏投产,没有采用国外主流曲面显示技术路线、拥有核心技术知识产权、覆盖了柔性显示制造的各个方面。
④全彩柔屏世界最薄。
中国企业深圳柔宇科技生产出全球最薄的全彩OLED柔性显示屏。
⑤全球首条类六代全柔性显示屏大规模量产线投产。
⑥与国外的平面、固定曲面不同,国产全柔性显示屏在用户手中也可以弯曲、折叠、卷曲,应用范围更广。
或:①技术制造方面:柔性技术世界领先,拥有核心技术知识产权,覆盖柔性显示制造的各个方面;全彩柔屏世界最薄,“动态折叠屏”弯折次数技术全球领先。
②产品方面:有“动态折叠屏”和“柔性电子书”两款柔性新产品。
前者技术全球领先,已全面量产;后者全球唯一,可在卷曲或折叠后随身携带。
【解析】【4题详解】C项,“电子器件及其电子器件构成的电路”错误,属于传统的电子技术。
【5题详解】B项,“前者必将全面取代后者”错误,过于绝对武断。
【6题详解】结合“‘动态折叠屏’弯折次数可超过10万次,技术处于全球最领先水平,并且已在维信诺昆山5.5代OLED生产线全面量产。
