高二·英语
2019.1 （本试卷共10页，满分150分，考试时间120分钟。）
第一部分听力（共两节，满分20分）
第一节听力理解（共6小题，每小题2分，满分12分）
材料及问题播放2遍，每段后有两个小题，各段播放前有5秒钟的阅读时间，请根据各段播放内容及相关小题的问题，在5秒钟内从题中所给的A/B/C项中，选出最佳选项，并在答题卡上将该项涂黑。
听第一段材料，回答第1-2小题，材料读两遍。
( ) 1. Question 1:（录音）
A. By staying up late.
B. By listening to the radio.
C. By surfing the
Internet.
( ) 2. Question 2:（录音）
A. A good way to learn English.
B. A British radio website.
C. Some English
programmes.
听第二段材料，回答第3-4题。材料读两遍。
( ) 3. Question 3:（录音）
A. Going shopping.
B. Going camping.
C. Going boating. ( ) 4. Question 4:（录音）
A. Visit his friends.
B. Watch DVDs.
C. Join the
woman.
听第三段材料，回答第5-6题。材料读两遍。
( ) 5. Question 5:（录音）
A. To help the local business.
B. To increase the local population.
C. To increase the local employment.
( ) 6. Question 6:（录音）
A. Set up a new company.
B. Hire more managers.
C. Improve his quality of life.
第二节回答问题（共4小题，每小题2分，满分8分）
7. Where does the yearly walk for charity start?
8.What will the money be used for?
9.Who will offer help along the road?
10. How often will the bus leave?
第二部分阅读理解（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，从每题所给的四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
A
New Exhibitions of Contemporary Art is the UK’s most widely used and trusted art resource. Here is the monthly guide with accurate and timely information.
Heather Mccalden | Easy Listening Dusk ( Dec 7 - Jan 12 )
This show is intended to create very specific feelings. The view will have actual feelings and thoughts when they walk out the door. It aims to make people aware of their hearts and brains.
Kate Shepherd + Allyson Strafella: Recent Works ( Oct 4 - Dec 17)
Bartha Contemporary is delighted to present an exhibition of recent works by Kate Shepherd and Allyson Strafella. The show will present paintings and works on paper by two American artists sharing an interest in colour, space and movement.
Shi Rongqiang: Ink: Speak (Friday only, Sep 14 - Sep 30)
Shi Rongqiang is a Chinese ink painter whose technique is representative of traditional Chinese ink painting but whose style and subject show human relationships and the changing role of the individual within society. Located in West Kensington, London, Arthill Gallery.
Imperfect Reverse(反转)（Oct 18 - Nov 18）
Bringing together the work of artists from the 1960s and 70s Systems Group, to younger artists working today, this exhibition tries to show the idea of an inperfect reverse.
Pulse Miami Beach (Dec 1 - 4, Private view, Wed, Nov 30, 10 am - 1pm)
Fiumano Projects will be presenting a solo booth by British Artist Sam Burford. Only limited tickets available. Please contact the gallery to apply for it.
( ) 11. Which activity lets you know more about yourself?
A. Easy Listening Dusk.
B. Imperfect Reverse.
C. Recent Works.
D. Pulse Miami Beach.
( ) 12. When can you go to enjoy some Chinese ink paitings?
A. Friday, Sep. 4th
B. Friday, Sep. 22nd
C. Saturday, Sep. 23rd
D. Saturday, Sep. 14th
( ) 13. Whose works require application before we go for them?
A. Kate and Allyson’s
B. Shi Rongqiang’s
C. Systems Group’s
D. Sam Burford’s
Shelly Stalls is a stupid donkey who says one thing to one person but the opposite to another. Now that we’re in junior high, she’s undoubtedly queen of small talks,but even back in elementary school she knew how to put on a performance. Especially when it came to P.E. I never once saw her run laps or do warm-ups. Instead, she would go into her “weak” act, claiming her body would absolutely be ruined from sports if she ran or jumped.
It worked. Every year, she’d bring in some note and be sure to faint(晕倒) a little in front of the teacher the first few days of the year, after which didn’t need to do anything that requ ired muscles. She never even put up her own chair at the end of the day. How weak. The only muscles she exercised regularly were the ones around her mouth, and those she worked out nonstop. If there was an Olympic contest for talking. Shelly Stalls would s weep the event. Well, she’d at least win the gold and silver--one medal for each side of her mouth.
My solution to Shelly Stalls was to ignore her, which worked all the way until I saw her holding hands with Bryce.
My Bryce. How could Shelly have put her hand into his? I rushed over and pushed her off him in two seconds but she came at me, dragging and pulling and twisting anything she could get her hands on, telling me that Bryce was hers and there was no way she was letting him go.
I was hoping for teachers to appear so they could see the real Shelly Stalls in action, but it was too late by the time anyone arrived on the scene.
( ) 14. How does the writer think of Shelly’s faint in P.E. Class?
A. Her health was ruined.
B. She performed a play.
C. She just didn’t like the teacher.
D. She pretended to be like
that.
( ) 15. What does Shelly like doing most according to the writer?
A. Watching Olympics.
B. Exercising muscles.
C. Talking nonstop.
D. Escaping PE class. ( ) 16. Why did the writer push Shelly off Bryce?
A. Bryce asked her for help.
B. The writer cared for
Bryce.
C. She wanted to fight with Shelly.
D. She thought Shelly was
weak.
( ) 17. What can be inferred from the last paragraph?
A. Shelly kept on fighting with the writer.
B. The writer was punished
by her teacher.
C. The real Shelly wasn’t seen by teachers.
D.The writer was seriously
injured by Shelly.
Two people, father an son, who had lived in total isolation（隔离）from society for 40 years in a remote jungle in central Vietnam have been brought back to normal life. To survive, they ate fruits, manioc(树薯) and corn and only had cloths made of tree barks(皮). They even built a tree house.
They are Ho Van Thanh, 82, and his son, Ho Van Lang, 42, who were found by some local people while they were travelling in a deep forest.
Being very surprised by abnormal appearances, gestures and manners of the “jungle men”, these people reported their finding to the local government, who set up a team to look for them, and after five hours of search in the forest, caught the father and son staying in a small hut built on some branches of a large tree.
Due to being isolated from social contact for a long time, both father and son could only speak a little of the language of the local place.
After carrying out an investigation into the men’s identity, they found that Thanh once lived a normal life with his family at a local village 40years ago. But one day at that time, a bombing happened in the village, killing Thanh’s mother and three of his four children on the spot. It is suspected that due to the shock, Thanh took his remaining son, 2 years old at the time, and ran away into this jungle. He and the son, now Ho V an Lang, had since lived their lonely life, without contact with anyone. Their daily foods were fruits and manioc they found in the forest. It is believed that they also planted corn for food.
The district government has asked the local health agency to make medical check-ups for the father and son, the first in a process to get them back to society.
( ) 18. Which best describes the father and the son when they were found?
A.Hungry. B frightened C. Surprised. D.
Strange- looking.
( ) 19. What probably made the father run to live in the jungle?
A. He didn’t want to contract anyone.
B. He was scared by the
bombing.
C. His village was destroyed.
D. There was no food at his
village.
( ) 20. What can we know about the father and the son’s life in the jungle?
A.They didn’t have normal clothes to wear.
B. They enjoyed staying in their
small hut.
C. They got ill after living there so long.
D. They found fruits, manioc and
corn for food.
( ) 21. What is the purpose of the passage?
A.To show how to help isolated people.
B. To report two men found in a
forest.
C. To talk about terrible influence of war.
D. To persuade people to help
others.
D
A British study showed that young men in the United Kingdom have grown by 10 centimeters since the turn of the 20th century.
In the study, the average height of British men, who had an average age of 20, was about 168 centimeters at the turn of the century, whereas now they stand on average at about 178 cm. The increase is most likely related to improved nutrition and health services, said the researchers from the University of Essex in Colehester(科尔切斯特).
In a number of other developed countries, people have been growing taller, too, reaching the world’s current greatest average height of 1.85 meters in the Netherlands. Interestingly, Americans were the tallest people in the world by World War II, measuring 1.77meters, but by the end of the 20th century, they fell behind, and the average U.S. Has stopped rising.
And even in some of those countries where the average height has been rising, the increase has not been
height-rise with former West Germans. And in some non-Western countries that have been bothered by war, disease and other serious problems, average height has decreased at one point in time or another. For instance, there was a decline in the average height among blacks in South Africa between the end of the 19th century and 1970. The decline was likely related to the effects of poor socio -economic conditions before and during apartheid (种族隔离).
The generation- after- generation effects of something bad that happened to a mother gets carried on to her children and her grandchildren, and it takes about five generations to overcome just one generation of starvation, or epidemic illness, or something like that.
( ) 22. Which is the best title for the passage?
A. People have grown taller.
B. The reason for height
rise.
C. How different are people?
D. Who are the tallest
people?
( ) 23. What probably caused British men’s heig ht increase according to the study?
A. Their birthplace.
B. Their young age.
C. More rest time.
D.
Better nutrition
( ) 24. What does the underlined word “uniform” mean?
A. Rapid
B. The same
C. Obvious
D.
Important
( ) 25. What do we know about people’s height rise according to the last two paragraph?
A.People’s height has stopped rising in Germany.
B. There isn’t height rise in non-Western countries.
C. Height rise can probably be influenced by wars.
D. People’s height rise isn’t related to their mothers.
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，选项中有两项为多于选项。
Listed bellow are four of the top ten “unique New Year Traditions from Around the World”. Breaking Dishes on Neighbor’s Door
A strange and weird Danish New Year tradition is throwing dish es at neighbor’s door. 26 The family with the tallest tower of broken plates, glasses and cups is considered to be the luckiest person because it symbolized their large number of loyal friends.
Talking to Spirits
Talking to spirits is a part of Mexican belief. 27 New Year’s Eve is considered the best time to communicate with dead spirits or ask them for guidance. And this is not done at home but is a legal Mexican practice. Taos Inn, for example, offers 15 minutes spiritualism（招魂）for ＄15. 28
Burning Scarecrow(稻草人)
Educator has a unique custom of burning scarecrows at midnight. As midnight approaches, everyone gathers outside their home and each family burns their own scarecrow. 29 The scarecrow a;so scares away bad luck,which in turn, fills their new year with luck and happiness.
Placing Mistletoe Leaves under Pillow
The single women of Ireland wait desperately for the New Year’s Eve. 30 They place mistletoe leaves under their pillow hoping to catch their future husband. It is also believed in the Irish culture this act will help them get rid of bad luck.
A. That’s not a bad price for some helpful guidance.
B. They spend that night with their family happily.
C. It is the night that can give them the love of their lives.
D. Strangely, this makes them happy instead of annoying them.
E. Communication plays a very important role in Mexican lives.
F. They believe they can communicate with the souls of their dead loved ones.
G. The tradition says this burns all the bad things that took place in the past years.
第三部分英语知识运用（共两节，满分45分）
第一节完形填空（共20小题，每小题1.5分，满分30分）
阅读下面短文，从短文后各题所给的四个选项中，选择可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
I first met Kyle as a freshman in high school. That day I saw him walking home from school and 31 lots of books. A group of running boys 32 all his books out of his arms. His 33 also went flying. As he looked up, i saw this terrible 34 in his eyes. When I jogged over and handed him his glasses, there was a big 35 on his face. Over the next few years, Kyle and I became best friends.
When Graduation Day came at last after four years, Kyle was chosen to give a 36 for graduation. He cleared his 37 , and began his talk.
“Graduation is a time to 38 those who helped you make it through those 39 years. Being a friend to someone is the best 40 you can give them. I am going to tell you a story.”
I just looked at my friend with 41 as he told the story of the first day we met. He had planned to 42 himself over the weekend. He talked of how he had 43 his locker(寄存柜) so his Mom wouldn’t have to do it 44 . He looked hard at me and gave me a little smile.
“45 my friend saved me from committing suicide by chance.” The crowd were46 as he told us all about his 47 moment. I saw this sunny boy’s parents looking at me and smiling that same grateful smile. Not until that moment did I realize the 48 of my action.
Never underestimate(低估) the power of your 49 . You do a small thing and you can 50 a person’s life. For better or worse.
( ) 31. A. leaving B. carrying C. reading D. bringing
( ) 32. A. took B. kicked C. knocked D. got
( ) 33. A. glasses B. books C. phone D. watch
( ) 34. A. anger B. silence C. sadness D. disappointment
( ) 35. A. scar B. laughter C. surprise D. smile
( ) 36. A. lecture B. performance C. gift D. speech
( ) 37. A. throat B. bag C. way D. memory
( ) 38. A. praise B. miss C.admire D. thank
( ) 39. A. meaningless B. beautiful C. tough D. academic
( ) 40. A. service B. gift C. moment D. honor
( ) 41. A. disagreement B. disbelief C. satisfaction D. confidence
( ) 42. A. kill B. express C. enjoy D. hide
( ) 43. A. filled B.opened C. cleared D. fixed
( ) 44. A. sooner B. later C. then D. first
( ) 45. A. Immediately B. Strangely C. Clearly D. Fortunately.
( ) 46. A. shocked B. confused C. relieved D. excited
( ) 47. A. greatest B. weakest C. latest D. scariest
( ) 48. A. importance B. purpose C. possibility D. difficulty
( ) 49. A. words B. intelligence C. encouragement D. actions
( ) 50. A. experience B. understand C. Change D. discover
第二节语法填空（共10小题，每小题1.5分，满分15分）
阅读下列材料，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。
Barletta, a small town in Italy, had a giant statue of a boy, which was in 51 town square. Barletta was a peaceful town. Everyone thought that it 52 (be) peaceful forever.
One day, the people heard that an army was coming 53 (destroy) Barletta. The people had no way to protect 54 (they). The oldest woman in town, Zia Concetta, began to talk 55 her friend, the giant statue. She hoped he could help. And that is 56 he did.
Zia Concetta made a 57 (decide) to save the town and made a plan. Everyone hid. The giant went to sit three miles outside the town. He held pieces of an onion close to his 58 (eye). When the army came, they saw a giant boy crying, 59 (sit) in a puddle of tears. The giant told the captain of the army that he was sad because he was too
small yo play with the other boys of the town. This scared the army.
If the boys were so big, the men must be much 60 (big). The army ran away. The giant went back to his spot in the town square. The town was peaceful again.
第四部分词汇、句型与写作（共45分）
第一节词汇基础（每空1.5分，满分15分）
根据下列各句句意及所给单词的首字母或汉语提示，用单词的恰当形式填空，并把完整单词填写在答题卡相应的位置上。
61. He got a r for his hard work. Now he has become a successful businessman.
62. We don’t quite agree on this plan, and there has been a n a between us for three months.
63. Thank you for your e . It’s absolutely clear to me now.
64. This pair of shoes is made of a new m , which gets dry quickly in rainy days.
65. He has already m ade up his mind, so it’s impossible to p him to give up.
66. After some delay, the library was （正式地）opened last month.
67. The （平均）price of goods has risen by almost 300% in the last 10 years.
68. No matter how his mother （强调）the importance of learning, he just doesn’t listen.
69. Excellent teachers always have their （耐心）for their students.
70. He was happy to drive across the city for her （方便）.
第二节单句改错（每小题1分，满分10分）
阅读下列句子，修改句子中的错误。每个句子有1处错误，每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏子符号（∧）并在其下面写出该加的词。
删除：把多余的词用斜线划掉（\）。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：每处错误及其修改均仅限一词。
71. It seems that university students always lack of money.
72. Mary was so exciting just because our team had won the football game.
73. They carried out the very successful experiment last week.
74. She is doing quite well in term of speaking English.
75. I saw this boy standing in front of the store cried.
76. These beautiful houses near the lake were all new built.
77. Now I feel necessary to work harder than before.
78. Tina’s parents, as well as her sister, lik es going to cinema on Sundays.
79. People may get fatter more easily without control their appetite.
80. I’ll never forget the days during that we visited different villages in the country.
第三节书面表达（满分20分）
假定你是李华，请给美国笔友Maria，介绍你校最近举行的体艺节（Sports and Art Carnival）,包含如下要点：
1.写信目的；
2.活动介绍（时间，内容，效果等）；
3.你的感想。
注意：
1.词数100左右；
2.可以适当增加细节，以使行文连贯；
3.开头和结束语已为你写好，不计入总词数。
参考答案
第一部分听力（共两节，满分20分）
第一节听力理解（共6小题，每小题2分，满分12分）
1-6: BACBAC
第二节回答问题（共4小题，每小题2分，满分8分）
7.(from) Garden Street 8. Building/ To build a children’s booksh op
9. (The) volunteers 10. Every half hour
第二部分阅读理解（共两节，满分40分）
第一节（共15小题；每小题2分，满分30分）
11-15：ABDDC 16-20：BCDBA 21-25：BADBC
第二节（共5小题，每小题2分，满分10分）
26-30：DFAGC
第三部分英语知识运用（共两节，满分45分）
第一节完形填空（共20小题，每小题1.5分，满分30分）
31-35：BCACD 36-40：DADCB 41-45：BACBD 46-50：ABADC 第二节语法填空（共10小题，每小题1.5分，满分15分）
51. the 52. would be 53. to destroy 54. themselves
55. to/ with
56. what 57. decision 58. eyes 59. sitting
60. bigger
第四部分词汇、句型与写作（共45分）
第一节词汇基础（每空1.5分，满分15分）
61. reward 62. argument 63. explanation(s) 64. material
65. persuade
66. officially 67. average 68. emphasise/ emphasize 69. patience
70. convenience
第二节单句改错（每小题1分，满分10分）
71. It seems that university students always lack of money.
72. Mary was so exciting just because our team had won the football game.
excited
73.They carried out the very successful experiment last week.
a
74.She is doing quite well in term of speaking English.
terms
75.I saw this boy standing in front of the store cried.
crying
76.These beautiful houses near the lake were all new built.
newly
77.Now I feel∧necessary to work harder than before.
it
78. Tina’s parents, as well as her sister, likes going to cinema on Sundays.
like/liked
79.People may get fatter more easily without control their appetite.
controlling
80. I’ll never forget the days during that we visited different villages in the country.
which
第三节书面表达（满分20分）
略
高二物理期末试题 本试卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分，共100分。 第Ⅰ卷 一、选择题（本题包括10小题，每小题4分，共40分，每小题中有的只有一个选项正确，有的有多个选项正确，全部选对的得4分，选对但选不全的得2分，有选错的得0分） 1、关于电场线下述说法正确的是( ) A.电场线是客观存在的 B.电场线与运动电荷的轨迹是一致的 C.电场线上某点的切线方向与电荷在该点受力方向可以不相同 D.沿电场线方向、场强一定越来越大 2、关于电阻的计算式 和决定式 ，下面说法正确的是 （ ） A ．导体的电阻与其两端电压成正比，与电流成反比 B ．导体的电阻仅与导体长度、横截面积和材料有关 C ．导体的电阻随工作温度变化而变化 D ．对一段一定的导体来说，在恒温下比值 I U 是恒定的，导体电阻不随U 或I 的变化而变化 3、如图所示，用两根绝缘细线挂着两个质量相同的不带电的小球A 和B ，此时，上、下细线受的力分别为T A 、T B ，如果使A 带正电，B 带负电，上、下细线受力分别为T 'A ， T 'B ，则（ ） A.T A < T 'A B.T B > T 'B C.T A = T 'A D. T B < T 'B 4、某学生在研究串联电路电压特点时，接成如图所示电路， 接通 I U R =S L R ρ=
K 后，他将高内阻的电压表并联在A 、C 两点间时，电压表读数为U ；当并联在A 、B 两点间时，电压表读数也为U ；当并联在B 、C 两点间时，电压表读数为零，则出现此种情况的原因可能是（ ）（R 1 、R 2阻值相差不大） A ．AB 段断路 B ．BC 段断路 C ．AB 段短路 D ．BC 段短路 5、如图所示，平行线代表电场线，但未标明方向，一个带正电、电量为10－6 C 的微粒在电场中仅受电场力作用，当它从A 点运动到B 点时动能减少了10－5 J ，已知A 点的电势为－10 V ，则以下判断正确的是（ ） A ．微粒的运动轨迹如图中的虚线1所示； B ．微粒的运动轨迹如图中的虚线2所示； C ．B 点电势为零； D ．B 点电势为－20 V 6、如右下图所示，平行板电容器的两极板A ，B 接入电池两极，一个带正电小球悬挂在 两极板间，闭合开关S 后，悬线偏离竖直方向的角度为θ，则（ ） A ．保持S 闭合，使A 板向 B 板靠近，则θ变大 B ．保持S 闭合，使A 板向B 板靠近，则θ不变 C ．打开S ，使A 板向B 板靠近，则θ变大 D ．打开S ，使A 板向B 板靠近，则θ不变 7、如图所示，甲、乙为两个独立电源的路端电压与通过它们的电流I 的关系图象，下列 说法中正确的是（ ） A ．路端电压都为U 0时，它们的外电阻相等， B ．电流都是I 0时，两电源的内电压相等 θ A B S A B 2 1
2019高二（下）期末数学试卷（理科） 一、选择题（共12小题，每小题5分，满分60分） 1．在复平面内，复数z 对应的点与复数 对应的点关于实轴对称，则复数z=（ ） A ．﹣1﹣i B ．1+i C ．2i D ．﹣1+i 2．某年龄段的女生体重y （kg ）与身高x （cm ）具有线性相关关系，根据一组样本数据（x i ，y i ）（i=1，2，…，n ），用最小二乘法建立的线性回归直线方程为=0.85x ﹣85.71，给出下 列结论，则错误的是（ ） A ．y 与x 具有正的线性相关关系 B ．若该年龄段内某女生身高增加1cm ，则其体重约增加0.85kg C ．回归直线至少经过样本数据（x i ，y i ）（i=1，2，…，n ）中的一个 D ．回归直线一定过样本点的中心点（，） 3．设随机变量ξ～N （2，9），若P （ξ＞c +3）=P （ξ＜c ﹣1），则实数c 的值为（ ） A ．1 B ．2 C ．3 D ．0 4．定积分 dx 的值是（ ） A ． +ln2 B ． C ．3+ln2 D ． 5．下列说法正确的是（ ） A ．一个命题的逆命题为真，则它的逆否命题一定为真 B ．“?x ∈R ，x 3﹣x 2+1≤0”的否定是“?x ∈R ，x 3﹣x 2+1＞0” C ．命题“若a 2+b 2=0，则a ，b 全为0”的逆否命题是“若a ，b 全不为0，则a 2+b 2≠0” D ．若命题“￢p”与“p 或q”都是真命题，则命题q 一定是真命题 6．一个几何体的三视图如图所示，已知这个几何体的体积为，则h=（ ） A ． B ． C ． D ． 7．“x ＜2”是“ln （x ﹣1）＜0”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
【一】选择题：本大题共12小题，每题5分，总分值60分，在每题给出的四个选项中，只有一项为哪一项符合要求的． 1．命题〝假设2x =，那么2 320x x -+=〞的逆否命题是〔 〕 A 、假设2x ≠，那么2320x x -+≠ B 、假设2320x x -+=，那么2x = C 、假设2320x x -+≠，那么2x ≠ D 、假设2x ≠，那么2 320x x -+= 2．〝直线l 垂直于ABC △的边AB ，AC 〞是〝直线l 垂直于ABC △的边BC 〞的 〔 〕 A 、充分非必要条件 B 、必要非充分条件 C 、充要条件 D 、既非充分也非必要条件 3 ．过抛物线24y x =的焦点F 的直线l 交抛物线于,A B 两点．假设AB 中点M 到抛物线 准线的距离为6，那么线段AB 的长为〔 ) A 、6 B 、9 C 、12 D 、无法确定 4．圆 042 2=-+x y x 在点)3,1(P 处的切线方程为 ( ) A 、023=-+y x B 、043=-+y x C 、043=+-y x D 、023=+-y x 5．圆心在抛物线x y 22=上，且与x 轴和抛物线的准线都相切的一个圆的方程是 〔 〕 A 、0 122 2 =+--+y x y x B 、041 222=- --+y x y x C 、0 122 2 =+-++y x y x D 、 041222=+ --+y x y x 6．在空间直角坐标系O xyz -中，一个四面体的顶点坐标为分别为(0,0,2)，(2,2,0)， (0,2,0)，(2,2,2)．那么该四面体在xOz 平面的投影为〔 〕
福建省福州市高二英语上学期期末考试试题 （完卷时间：120分钟，总分：150分） 第Ⅰ卷 第一部分听力（共两节，满分 30 分） 做题时，现将答案标在试卷上，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） 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 秒钟的时间回答有关小题和阅读下一小题。每段对话仅读一遍。 1. What gift will the woman probably get for Mary? A. A schoolbag. B. A CD. C. A movie ticet. 2. What is the man doing? A. Watching TV. B. Enjoying a party. C. Looing for his clothes. 3. What does the man mainly do in his spare time? A. He plays sports. B. He plays the piano. C. He learns a language. 4. Which flavor is the most popular? A. Strawberry. B. Chocolate. C. Lemon. 5. What are the speaers taling about? A. A movie they just saw. B. A favorite actor. C. Weeend plans. 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。 听第6段材料，回答第6、7题。 6. What is the relationship between the speaers? A. Former classmates. B. Teacher and student. C. Old teammates. 7. What is the woman more interested in now? A. Playing tennis. B. Playing the piano. C. Playing basetball. 听第7段材料，回答第8、9题。 8. What caused the woman’s problem?
高二期末统测物理试卷及答案 下面由为大家提供关于高二期末统测物理试卷及答案，希望对大家有帮助!高二期末统测物理试卷选择题一、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，第1～4题只有一项是符合题目要求的，第5～8题有多项符合题目要求.全部选对的得5分，选对但不全的得3分，有选错的得0分。 1. 如图所示，在直线MN上有一个点电荷，A、B是直线MN上的两点，两点间的距离为L，场强大小分别为E和2E.则A.该点电荷一定在A点的右侧B.该点电荷一定在A点的左侧C.A点场强方向一定沿直线向左D.A点的电势一定低于B点的电势 2. 如图所示，充有一定电荷量的平行板电容器极板A与一静电计相接，极板B接地，若极板B稍向上移动一点，由观察到的静电计指针变化作出平行板电容器电容变小的结论的依据是A.两极板间的电压不变，极板上的电量变大B.两极板间的电压不变，极板上的电量减小 C.极板上的电量几乎不变，两极板间的电压变大D.极板上的电量几乎不变，两极板间的电压变小 3. 如图所示，要使线框abcd在受到磁场力作用后，ab边向纸外，cd边向纸里转动，可行的方法是 A.加方向垂直纸面向外的磁场，通方向为a→b→c→d→a的电流 B.加方向平行纸面向上的磁场，通方向为a→b→c→d→a的电流 C.加方向平行于纸面向下的磁场，通方向为a→b→c→d的电流 D.加方向垂直纸面向内的磁场，通方向为a→d→c→b→a的电流 4. 在竖直向上的匀强磁场中，水平放置一个不变
形的单匝金属圆线圈，规定线圈中感应电流的正方向如图甲所示，当磁场的磁感应强度B随时间如图乙变化时，下图中正确表示线圈中感应电动势E变化的是5.如图所示，在竖直向上的匀强磁场中，水平放置着一根长直流导线，电流方向指向读者，a、b、c、d是以直导线为圆心的同一圆周上的四点，在这四点中A.a、b两点磁感应强度相同B.a 点磁感应强度最大C.c 、d两点磁感应强度大小相等D.b点磁感应强度最大6. 如图所示是一火警报警器的电路示意图，其中R2为用半导体热敏材料制成的传感器，这种半导体热敏材料的电阻率随温度的升高而减小。 电流表为值班室的显示器，电源两极之间接一报警器，当传感器R2所在处出现火情时，显示器的电流I、报警器两端的电压U的变化情况是A.I变小B.I变大C.U变小 D.U变大7. 如图所示，平行线代表电场线，但未标明方向，一个带正电、电量为10-6 C的微粒在电场中仅受电场力作用，当它从A点运动到B点时动能减少了10-5 J，已知A点的电势为-10 V，则以下判断正确的是A.微粒的运动轨迹可能如图中的虚线1所示;B.微粒的运动轨迹可能如图中的虚线2所示;C.B点电势为零;D.B点电势为-20 V8. 如图所示，在光滑绝缘的水平桌面上放一弹性闭合导体环，在导体环轴线上方有一条形磁铁.当条形磁铁沿轴线竖直向下迅速移动时，下列判断正确的是A.导体环有收缩趋势B.导体环有扩张趋势C.导体环对桌面压力减小D.导体环对桌面压力增大考生根据要求作答.解答题应写出必要的文字说明、方程式和重要
2019-2020学年高二年级上学期期末考试数学试卷 一、填空题（每小题 3分，共36 分） 1.关于,x y 的二元一次方程的增广矩阵为123015-?? ??? ，则x y += 。 【答案】8- 2.已知(5,1),(3,2)OA OB =-=，则AB 对应的坐标是 。 【答案】）（3,2 3.已知直线420ax y +-=与直线10x ay ++=重合,则a = 。 【答案】2- 4.在正方体1111ABCD A B C D -中，E 是AB 中点，F 为BC 中点，则直线1A E 与1C F 的位置关系是 。 【答案】相交 5.圆22240x y x y +-+=的圆心到直线3450x y +-=的距离等于 。 【答案】2 6.已知复数22i z i +=，则z 的虚部为 。 【答案】1- 7..经过动直线 20kx y k -+=上的定点，方向向量为(1,1)的直线方程是 。 【答案】02=+-y x 8.复数34i +平方根是 。 【答案】） （i +±2 9.过点() ,0M 且和双曲线2222x y -=有相同的焦点的椭圆方程为 。 【答案】13 62 2=+y x 10.已知双曲线22 :1916 x y C -=的左、右焦点分别为12,F F P ，为双曲线C 的右支上一点， 且212PF F F =，则12PF F ?的面积等于 。 【答案】48 11.平面上一机器人在行进中始终保持与点(1,0)F 的距离和到直线1x =-的距离相等。 若机器人接触不到过点(1,0)P -且斜率为k 的直线，则k 的取值范围是 。 【答案】）（）（+∞∞,11-,- 【解析】由抛物线定义可知，机器人的轨迹方程为x y 42 =，过点)0,1(-P 且斜率为k 的直
浙江省温州市十校联合体高二（上）期末数学试卷 一、选择题：本大题共10小题，每小题4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．（4分）准线方程是y=﹣2的抛物线标准方程是（） A．x2=8y B．x2=﹣8y C．y2=﹣8x D．y2=8x 2．（4分）已知直线l1：x﹣y+1=0和l2：x﹣y+3=0，则l1与l2之间距离是（）A．B．C．D．2 3．（4分）设三棱柱ABC﹣A1B1C1体积为V，E，F，G分别是AA1，AB，AC的中点，则三棱锥E ﹣AFG体积是（） A．B．C．D． 4．（4分）若直线x+y+m=0与圆x2+y2=m相切，则m的值是（） A．0或2 B．2 C．D．或2 5．（4分）在四面体ABCD中（） 命题①：AD⊥BC且AC⊥BD则AB⊥CD 命题②：AC=AD且BC=BD则AB⊥CD． A．命题①②都正确 B．命题①②都不正确 C．命题①正确，命题②不正确D．命题①不正确，命题②正确 6．（4分）设m、n是两条不同的直线，α、β是两个不同的平面．考查下列命题，其中正确的命题是（） A．m⊥α，n?β，m⊥n?α⊥βB．α∥β，m⊥α，n∥β?m⊥n C．α⊥β，m⊥α，n∥β?m⊥n D．α⊥β，α∩β=m，n⊥m?n⊥β 7．（4分）正方体ABCD﹣A1B1C1D1中，二面角A﹣BD1﹣B1的大小是（） A．B．C． D． 8．（4分）过点（0，﹣2）的直线交抛物线y2=16x于A（x1，y1），B（x2，y2）两点，且y12﹣y22=1，则△OAB（O为坐标原点）的面积为（） A．B．C．D． 9．（4分）已知在△ABC中，∠ACB=，AB=2BC，现将△ABC绕BC所在直线旋转到△PBC，设二面角P﹣BC﹣A大小为θ，PB与平面ABC所成角为α，PC与平面PAB所成角为β，若0＜θ＜π，则（）
试卷类型：A 2019-2020年高二上学期期末统考英语试题含答案本试卷分第1卷（选择题）和第ll卷（非选择题）两部分二第1卷l至10页。第II卷1 l 至12页。 第1卷（共100分） 注意事项： 1. 答第1卷前，考生务必将自己的姓名、准考证号、考试科目涂写在答题卡上。 2. 每小题选出答案后，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。不能答在试卷上。 第一部分听力（共两节，满分30分） 做题时，先将答案标在试卷上。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个小题，每小题1.5分，满分7.5分） 听下面5段对话。每段对话后有一道小题，从每题所给的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 are they talking about? A. Driving in England. B. How to drive a car. C. When to drive a car in England. 2. What does the woman mean? A. Marv is il1. B. Mary thinks well of the concert. C. She has no chance to talk to Mary. 3. Does Jane know Arid Brown? A. She doesn't know him. B. She knows something about him. C. She kuows him very Well. 4. Whatcan we learn from the conversation? A. They are neighbors. B. Thev are classmates. C. They are not from the same country. 5. Where cloes the conversation probaly take place? A. In a clothing store. B. At the woman's home. C. In the sitting room. 第二节（共15小题；每小题1.5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。每段对话或独白渎两遍。
2019学年山东省高二上期末理科数学试卷【含答案及 解析】 姓名___________ 班级____________ 分数__________ 一、选择题 1. 在△ ABC中，若，则等于（） A ． B ． C ． D ． 2. 已知命题，则的否定形式为（） A． B ． C．____________________________ D ． 3. 抛物线的焦点坐标是（） A ．______________ B ．____________________ C ． ______________ D ． 4. 已知，，那么（） A． B． _________ C．________ D ． 5. 数列的前项和为，若，则 = （） A ．______________ B ．______________ C ．
______________ D ． 6. 在△ ABC 中，若 a 、 b 、 c 成等比数列，且 c = 2 a ，则 等于（） A ．___________ B ．_________ C ．_________ D ． 7. 一元二次不等式的解集是，则的值是（） A ．____________________ B ．___________________ C ． ______________ D ． 8. 已知数列，则数列的前10项和为（） A ．______________ B ．______________________ C ． _______________________ D ． 9. 以下有关命题的说法错误的是（） A ．命题“若，则”的逆否命题为“若，则 ” B ．“ ”是“ ”的充分不必要条件 C ．命题“在△ABC中，若”的逆命题为假命题； D ．对于命题，使得，则，则 10. 设为等比数列的前n项和，，则（） A ．______________ B ．___________________________________ C ． _________ D ． 11. 不等式成立的一个充分不必要条件是（） A ．________ B ．___________ C ．
高 二 上 学 期 数 学 期 末 测 试 题 一、选择题：1．不等式21 2 >++ x x 的解集为（ ） A.()()+∞-,10,1Y B.()()1,01,Y -∞- C.()()1,00,1Y - D.()()+∞-∞-,11,Y 2．0≠c 是方程 c y ax =+22 表示椭圆或双曲线的（ ）条件 A ．充分不必要 B ．必要不充分 C ．充要 D ．不充分不必要 3.若,20πθ≤≤当点()θcos ,1到直线01cos sin =-+θθy x 的距离为41,则这条直线的斜率为（ ） B.－1 C.2 3 D.－ 3 3 4.已知关于x 的不等式012 3 2>+-ax ax 的解集是实数集 R ，那么实数a 的取值范围是（ ） A.[0，9 16] B.[0, 9 16） C.（9 16,0） D.????? ? 38,0 5.过点（2，1）的直线l 被04222=+-+y x y x 截得的最长弦所在直线方程为：( ) A. 053=--y x B. 073=-+y x C. 053=-+y x D. 013=+-y x 6.下列三个不等式：①;232x x >+②2,0,≥+≠∈b a a b ab R b a 时、；③当0>ab 时，.b a b a +>+其中恒成立的不等 式的序号是（ ）A.①② B.①②③ C.① D.②③ 7.圆心在抛物线x y 22=上，且与x 轴和该抛物线的准线都相切的一个圆的方程是（ ） A ．041 222=---+y x y x B ．01222=+-++y x y x C ．0122 2 =+--+y x y x D ．04 1222=+--+y x y x 8.圆C 切y 轴于点M 且过抛物线452+-=x x y 与x 轴的两个交点，O 为原点，则OM 的长是（ ） A ．4 B ． C ．22 D ．2 9.与曲线14924 22=+y x 共焦点，而与曲线164 36 2 2=-y x 共渐近线的双曲线方程为（ ） A ．19 1622=-x y B ．191622=-y x C ．116922=-x y D ．116 92 2=-y x 10.抛物线x y 42-=上有一点P ，P 到椭圆115 162 2=+y x 的左顶点的距离的最小值为（ ） A ．32 B ．2+ 3 C ． 3 D ．3 2- 11.若椭圆)1(122>=+m y m x 与双曲线)0(122 >=-n y n x 有相同的焦点F 1、F 2，P 是两曲线的一个交点，则2 1PF F ?的面积是（ ）A ．4 B ．2 C ．1 D ．
高二物理第一学期期末考试试题 说明：本试卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分．将选择题的正确选项填涂在答题卡上，将第Ⅱ卷答案答在答题纸上；考试结束，将答题纸连同答题卡一并上交．考试时间90分钟，满分100分． 第Ⅰ卷（选择题 48分） 一、选择题：本题共12小题，每小题4分，共48分．在每小题给出的四个选项中，至少有一项符合题目要求，全部选对得4分，选对但不全得2分，有选错或者不选得0分． 1．下列说法正确的是 A ．布朗运动就是液体分子的无规则运动 B ．只要外界对气体做了功，气体的内能就一定发生变化 C ．一定量的理想气体，当温度升高时，一定是外界对它做了正功 D ．一定量的理想气体，当温度升高时，它的体积可能增大 2．如图所示为一种利用电磁原理制作的充气泵的结构示意图，其工作原理类似打点计时器．当电流从电磁铁的接线柱 a 流入，吸引小磁铁向下运动时，下列说法正确的是 A ．电磁铁的上端为N 极，小磁铁的下端为N 极 B ．电磁铁的上端为S 极，小磁铁的下端为S 极 C ．电磁铁的上端为N 极，小磁铁的下端为S 极 D ．电磁铁的上端为S 极，小磁铁的下端为N 极 3．如图所示，设有一分子位于图中的坐标原点O 不 动，另一分子可位于 x 轴上不同位置处．图中纵坐标表示 这两个分子间作用力的大小，两条曲线分别表示斥力和引力的大小随两分子间距离变化的关系，e 为两曲线的交 点．则 A ．ab 表示引力 B ．cd 表示引力 C ．ab 表示斥力 D ．cd 表示斥力 4．一个矩形线圈在匀强磁场中转动产生的交变电流 e =2002 sin100πt(V)，则 A ．该交变电流的频率是100Hz B ．当t = 1 200 s 时，线圈平面恰好位于中性面上 C ．当t = 1 200 s 时，e 有最大值 D ．该交变电流电动势的有效值为2002 V 5．小型水力发电站的发电机有稳定的输出电压，它发出的交变电流先通过电站附近的升压变压器升压，然后通过输电线路把电能输送到远处用户附近的降压变压器，经降低电压后再输送至各用户，设变压器都是理想的，那么在用电高峰期，随用电器功率的增加将导致 A ．发电机的输出电流变小 B ．高压输电线路的功率损失变大 空气导管
2019-2020学年度上学期期末考试 高二数学（理科）试卷 考试时间：120分钟 试题分数：150分 卷Ⅰ 一、 选择题：本大题共12小题,每题5分,共60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. 对于常数m 、n ，“0mn <”是“方程221mx ny +=的曲线是双曲线”的 A ．充分不必要条件 B ．必要不充分条件 C ．充分必要条件 D ．既不充分也不必要条件 2. 命题“所有能被2整除的数都是偶数”的否定．．是 A ．所有不能被2整除的数都是偶数 B ．所有能被2整除的数都不是偶数 C ．存在一个不能被2整除的数是偶数 D ．存在一个能被2整除的数不是偶数 3. 已知椭圆116 252 2=+y x 上的一点P 到椭圆一个焦点的距离为7，则P 到另一焦点距离为 A ．2 B ．3 C ．5 D ．7 4 . 在一次跳伞训练中,甲、乙两位学员各跳一次,设命题p 是“甲降落在指定范围”,q 是“乙降落在指定范围”,则命题“至少有一位学员没有降落在指定范围”可表示为 A ．()()p q ?∨? B ．()p q ∨? C ．()()p q ?∧? D ．p q ∨ 5. 若双曲线22 221x y a b -=3 A ．2± B. 1 2 ± C. 222± 6. 曲线sin 1 sin cos 2 x y x x =-+在点(,0)4M π处的切线的斜率为 A. 22 B. 22- C. 12 D. 1 2 -
7． 已知椭圆)0(1222222>>=+b a b y a x 的焦点与双曲线122 22=-b x a y 的焦点恰好是一个 正方形的四个顶点，则抛物线2bx ay =的焦点坐标为 A. )0,43( B. )0,123( C. )123,0( D.)43,0( 8．一间民房的屋顶有如图三种不同的盖法：①单向倾斜；②双向倾斜；③四向倾斜. 记三种盖法屋顶面积分别为123,,P P P ， ① ② ③ 若屋顶斜面与水平面所成的角都是α，则 A. 123P P P == B. 123P P P =< C. 123P P P <= D. 123P P P << 9. 马云常说“便宜没好货”,他这句话的意思是:“不便宜”是“好货”的 A ．充分条件 B ．必要条件 C ．充分必要条件 D ．既不充分也不必要条件 10. 设0>a ，c bx ax x f ++=2)(，曲线)(x f y =在点P （)(,00x f x ）处切线的倾斜角的取值范围是]4 ,0[π ，则P 到曲线)(x f y =对称轴距离的取值范围为 A. ]1,0[a B. ]21 ,0[a C. ]2,0[a b D. ]21,0[a b - 11. 已知点O 在二面角AB αβ--的棱上，点P 在α内，且60POB ∠=?.若对于β内异于O 的任意一点Q ，都有60POQ ∠≥?，则二面角AB αβ--的大小是 A. 30? B.45? C. 60? D.90? 12. 已知双曲线22 221(0,0)x y a b a b -=>>的两个焦点为1F 、2F ，点A 在双曲线第一象 限的图象上，若△21F AF 的面积为1，且2 1 tan 21=∠F AF ，2tan 12-=∠F AF ，则双曲线方程为
高二上学期期末数学试卷（理科A卷） 姓名:________ 班级:________ 成绩:________ 一、选择题 (共12题；共24分) 1. （2分） (2016高二下·玉溪期中) 复数的共轭复数是a+bi（a，b∈R），i是虛数单位，则点（a，b）为（） A . （1，2） B . （2，﹣i） C . （2，1） D . （1，﹣2） 2. （2分） (2017高二下·嘉兴期末) 已知实数x，y满足，则x+2y的取值范围为（） A . [﹣3，2] B . [﹣2，6] C . [﹣3，6] D . [2，6] 3. （2分）设，则“”是“”的（） A . 充分而不必要条件 B . 必要而不充分条件 C . 充要条件 D . 既不充分也不必要条件 4. （2分）函数f（x）=（）的单调递增区间为（）
A . （﹣∞，﹣1] B . [2，+∞） C . （﹣∞，） D . （，+∞） 5. （2分）点A(x,y)是300°角终边上异于原点的一点，则值为（） A . B . - C . D . - 6. （2分）设(5x－1)n的展开式的各项系数之和为M,二项式系数之和为N，若M－N＝240,则展开式中x3的系数为（） A . －150 B . 150 C . －500 D . 500 7. （2分） (2019高三上·长治月考) 某几何体的三视图如图所示，则该几何体的体积为（）
A . B . C . 2 D . 8. （2分）如图所示为一电路图，从A到B共有（）条不同的线路可通电（） A . 1 B . 2 C . 3 D . 4 9. （2分） (2017高二下·临川期末) 已知变量x ， y具有线性相关关系，测得（x ， y）的一组数据如下：（0,1），（1,2），（2,4），（3,5），其回归方程为，则的值是（） A . 1 B . 0.9 C . 0.8 D . 0.7 10. （2分） (2016高二下·邯郸期中) 2+22+23…+25n﹣1+a被31除所得的余数为3，则a的值为（） A . 1 B . 2
2019 高二英语期中考试试题 第一部分：听力理解（共三节，12 分） 第一节（共3 小题; 每小题1 分, 共3 分） 听下面 3 段对话，从各题A、B、C 三个选项中选出能回答问题的选项。每 段对话你将听一遍。 1. Where is this conversation probably taking place? A. On a bus. B. In a library. C. At a cinema. 2. What is the probable relationship between the two speakers? A. Teacher and student. B. Husband and wife. C. Doctor and patient. 3. What is the man ’s IQ test score? A. 100. B. 120. C. 160. 第二节（共6 小题; 每小题1 分, 共6 分） 听下面3 段对话或独白，从各题A、B、C三个选项中选出能回答问题的选项。 每段对话或独白你将听两遍。 听第4 段材料，回答第 4 至5 题。 4. How long does short term memory last?
A. A few seconds. B. A few minutes. C. A few hours. 5. Which of the following events requires only medium memory? A. Reading newspaper. B. Writing a resume( 简历). C. Doing shopping. 听第5 段材料，回答第 6 至7 题。 6. What does the man say about his working experience? A. Teaching Spanish at a local school. B. Working at a company for years. C. Owning a small business in Detroit. 7. Why does the man want to leave his present job? A. To find a full-time job in a company near home. B. To find a part-time job with chances of travelling. C. To find a full-time job with more responsibility. 听第6 段材料，回答第8 至9 题。 8. What are the two people in the above flat like? A. Selfish. B. Sensitive. C. Optimistic. 9. What advice does the woman give to the man? A. Talking to them. B. Inviting them to a party. C. Speaking ill of them.
高二物理期末试题 本试卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分，共100分。 第Ⅰ卷 一、选择题（本题包括10小题，每小题4分，共40分，每小题中有的只有一个选项正确，有的有多个选项正确，全部选对的得4分，选对但选不全的得2分，有选错的得0分） 1、关于电场线下述说法正确的是( ) A.电场线是客观存在的 B.电场线与运动电荷的轨迹是一致的 C.电场线上某点的切线方向与电荷在该点受力方向可以不相同 D.沿电场线方向、场强一定越来越大 2、关于电阻的计算式 和决定式 ，下面说法正确的是 （ ） A ．导体的电阻与其两端电压成正比，与电流成反比 B ．导体的电阻仅与导体长度、横截面积和材料有关 C ．导体的电阻随工作温度变化而变化 D ．对一段一定的导体来说，在恒温下比值 I U 是恒定的，导体电阻不随U 或I 的变化而变化 3、如图所示，用两根绝缘细线挂着两个质量相同的不带电的小球A 和B ，此时，上、下细线受的力分别为T A 、T B ，如果使A 带正电，B 带负电，上、下细线受力分别为T 'A ， T 'B ，则（ ） A.T A < T 'A B.T B > T 'B C.T A = T 'A D. T B < T 'B I U R =S L R ρ=
4、某学生在研究串联电路电压特点时，接成如图所示电路，接通K 后，他将高内阻的电 压表并联在A 、C 两点间时，电压表读数为U ；当并联在A 、B 两点间时，电压表读数也为U ；当并联在B 、C 两点间时，电压表读数为零，则出现此种情况的原因可能是（ ）（R 1 、R 2阻值相差不大） A ．AB 段断路 B ．BC 段断路 C ．AB 段短路 D ．BC 段短路 5、如图所示，平行线代表电场线，但未标明方向，一个带正电、电量为10－6 C 的微粒在电场中仅受电场力作用，当它从A 点运动到B 点时动能减少了10－5 J ，已知A 点的电势为－10 V ，则以下判断正确的是（ ） A ．微粒的运动轨迹如图中的虚线1所示； B ．微粒的运动轨迹如图中的虚线2所示； C ．B 点电势为零； D ．B 点电势为－20 V 6、如右下图所示，平行板电容器的两极板A ，B 接入电池两极，一个带正电小球悬挂在 两极板间，闭合开关S 后，悬线偏离竖直方向的角度为θ，则（ ） A ．保持S 闭合，使A 板向 B 板靠近，则θ变大 B ．保持S 闭合，使A 板向B 板靠近，则θ不变 C ．打开S ，使A 板向B 板靠近，则θ变大 D ．打开S ，使A 板向B 板靠近，则θ不变 7、如图所示，甲、乙为两个独立电源的路端电压与通过它们的电流I 的关系图象，下列 说法中正确的是（ ） A ．路端电压都为U 0时，它们的外电阻相等， θ A B S A B 2 1
2019-2020学年高二上学期期末考试数学试题（理科） 一、选择题（本大题共12小题，共60.0分） 1.已知集合0，，，则 A. B. 0， C. D. 【答案】C 【解析】解：； ． 故选：C． 可求出B，然后进行并集的运算即可． 考查描述法、列举法的定义，绝对值不等式的解法，以及并集的运算． 2.已知数列中，，则 A. 4 B. 9 C. 12 D. 13 【答案】D 【解析】解：数列中，， 则． 故选：D． 利用通项公式即可得出． 本题考查了数列的通项公式，考查了推理能力与计算能力，属于基础题． 3.已知椭圆C：中，，，则该椭圆标准方程为 A. B. C. D. 【答案】A 【解析】解：根据题意，椭圆C：，其焦点在x轴上， 若，，则， 则椭圆的方程为； 故选：A． 根据题意，分析椭圆的焦点位置，由椭圆的几何性质可得b的值，代入椭圆的方程即可得答案． 本题考查椭圆的标准方程，注意掌握椭圆标准方程的形式，属于基础题． 4.若向量，，则 A. B. C. 3 D. 【答案】D 【解析】解：向量，， 0，，
． 故选：D． 利用向量坐标运算法则求解0，，由此能求出的值． 本题考查向量的模的求法，考查向量坐标运算法则、向量的模等基础知识，考查函数与方程思想，考查运算求解能力，是基础题． 5.设a，，则“”是“”的 A. 充分不必要条件 B. 必要不充分条件 C. 充要条件 D. 既不充分又不必要条件 【答案】C 【解析】解：若， ，不等式等价为，此时成立． ，不等式等价为，即，此时成立． ，不等式等价为，即，此时成立，即充分性成立． 若， 当，时，去掉绝对值得，，因为，所以，即． 当，时，． 当，时，去掉绝对值得，，因为，所以，即即必要性成立， 综上“”是“”的充要条件， 故选：C． 根据不等式的性质，结合充分条件和必要条件的定义进行判断即可得到结论． 本题主要考查充分条件和必要条件的判断，利用不等式的性质结合分类讨论是解决本题的关键． 6.若x，y满足，则的最小值为 A. B. C. D. 【答案】B 【解析】解：x，y满足的区域如图： 设， 则， 当此直线经过时z最小，所以z的最小值 为； 故选：B． 画出平面区域，利用目标函数的几何意义求最 小值． 本题主要考查线性规划的应用，利用数形结合
高二上学期数学期末考试试卷 一、解答题 1. 直线的倾斜角的大小为________． 2. 设直线，， ． （1）若直线，，交于同一点，求m的值； （2）设直线过点，若被直线，截得的线段恰好被点M平分，求直线的方程． 3. 如图，在四面体中，已知⊥平面， ，，为的中点． （1）求证：； （2）若为的中点，点在直线上，且， 求证：直线//平面． 4. 已知，命题{ |方程 表示焦点在y轴上的椭圆}，命题{ |方程
表示双曲线}，若命题“p∨q”为真，“p∧q”为假，求实数的取值范围． 5. 如图，已知正方形和矩形所在平面互相垂直， ，． （1）求二面角的大小； （2）求点到平面的距离. 6. 已知圆C的圆心为，过定点 ，且与轴交于点B，D． （1）求证：弦长BD为定值； （2）设，t为整数，若点C到直线的距离为，求圆C的方程． 7. 已知函数（a为实数）. （1）若函数在处的切线与直线 平行，求实数a的值； （2）若，求函数在区间上的值域； （3）若函数在区间上是增函数，求a的取值范围． 8. 设动点是圆上任意一点，过作轴的垂线，垂足为，若点在线段上，且满足．
（1）求点的轨迹的方程； （2）设直线与交于，两点，点 坐标为，若直线，的斜率之和为定值3，求证：直线必经过定点，并求出该定点的坐标． 二、填空题 9. 命题“对任意的”的否定是________． 10. 设，，且// ，则实数________． 11. 如图，已知正方体的棱长为a，则异面直线 与所成的角为________． 12. 以为准线的抛物线的标准方程是________． 13. 已知命题: 多面体为正三棱锥，命题:多面体为正四面体，则命题是命题的________条件．（填“充分不必要”，“必要不充分”，“充要”，“既不充分又不必要”之一） 14. 若一个正六棱柱的底面边长为，侧面对角线的长为，则它的体积为________． 15. 函数的单调递减区间为________．
2019-2020学年高二英语1月期末联考试题 (全卷满分：150分考试用时：120分钟) 注意事项： 1.答题前，先将自己的姓名、准考证号写在试题卷和答题卡上，并将准考证条形码粘贴在答题卡上的指定位置。 2.选择题的作答：每小题选出答案后，用2B 铅笔把答题卡上相应题目的答案标号涂黑。写在试题卷、草稿纸和答题卡上的非答题区域均无效。 3.非选择题的作答：用签字笔直接答在答题卡上对应的答题区域内，写在试题卷、草稿纸和答题卡上的非答题区域均无效。 4.考试结束后，将答题卡上交。 选择题部分 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。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. How much will the woman pay for the stamps? A. $ 1. B. $ 2. C. $ 4. 2. What does the man dislike about the shirt? A. Its material. B. Its design. C. Its color. 3. What does the man mean? A. He didn’t get a ticket. B. He sat in the wrong seat. C. He wants to change tickets. 4. How does the woman feel? A. Sad. B. Excited. C. Disappointed. 5. Why won’t the boy go to the party tomorrow night? A. He has just recovered from sickness. B. He has an exam that night. C. He doesn’t like parties. 第二节