华东师大三附中2014学年第二学期第二次月考
高二英语试题
命题：俞连审题：徐丹红时间：120分钟满分： 150分
第I卷（共103分）
Listening Comprehension （30’）
Short conversation
In Section A, you will hear ten short conversations between two speakers. At the end each conversation, a question will be asked about what was said. The conversations and the
1. A. In June B. In July C. In September D. In October
2. A. At home B. In a hotel C. In a library D. At a bank
3. A. She made a late delivery. B. She went to the wrong place.
C. She couldn’t take the cake back.
D. She was late due to the birthday party.
4. A. Mary B. Jane C. Alice D. David
5. A. Buying tickets. B. Repairing machines.
C. Changing notes.
D. Changing notes for coins.
6. A. Strangers B. Classmates C. Workmates D. Neighbors
7. A. A policeman waved good-bye to them. B. The man broke the traffic rules.
C. He escaped because no one saw him.
D. He stopped at the traffic lights.
8. A. Basketball B. Football
C. Both basketball and football.
D. Neither basketball nor football.
9. A. 23 B. 60 C. 42 D. 19
10. A. With their feet B. With their eyes.
C. With their hands
D. In many ways
Passages
In Section B, you will hear two short passages, and you will be asked three questions once. When you hear a question, read the four possible answers on your paper an d decide which
11. A. Games of strength and speed. B. A simple but exciting contest.
C. Changing the rules of a fun game.
D. The oldest sport at the Olympic Games.
12. A. The rope is pulled. B. The field is measured.
C. The teams are counted.
D. The participants are weighed.
13. A. 1896 B. 1900 C. 1904 D. 1920
14. A. They only employ college students.
B. They can offer many job opportunities.
C. They have more than 500 companies nationwide.
D. They send people to go to college each year for further education.
15. A. An employment agency may help you find a job in small companies.
B. The income in small firms is usually low.
C. Their employees will find it hard to get promoted.
D. They also manage to send people to colleges for potential employees.
16. A. Professors. B. Employees. C. Graduating students D. Executives.
Section C Longer Conversations
Directions:In Section C, you will hear two longer conversations. The conversations will be read twice. After you hear each conversation, you are required to fill in the numbered blanks with information you have heard. Write your answers on your answer sheet.
Blanks 17 through 20 are based on the following conversation.
Blanks 21 through 24 are based on the following conversation.
II. Grammar and vocabulary (26’)
Section A （16’）
Directions: Fill in the blanks to make the passages coherent and grammatically correct.
(A)
Once upon a time, a boy was walking through a large woods (25) __________ he found a big blackboard hanging on an old tree trunk. It came complete with a box of chalk pieces, and bright sparks were flying from the tips of every piece of chalk. The boy took a piece of chalk and started to draw on the blackboard: first a tree, then a rabbit, and then a flower …
Magically, whenever he finished a figure, it came to life and jumped out of the blackboard. Before long, the place became a wonderfully green and fertile forest, full of animals playing happily.
(26)__________ (excite), the boy also drew his parents and brothers and sisters enjoying a picnic, with their sandwiches and cold meats. He also drew the paper plates and the empty tins of sardines（沙丁鱼）left on the ground, (27) __________ always happened on their picnics. But when these bits of litter came to life, (28)_________ awful happened: around every paper plate
and every empty tin, the forest turned grey, and this greyness started spreading quickly everywhere: to the grass, to the flowers, to the animals … The boy realized the litter was (29) __________ (blame) for all the greyness, so he ran through the forest with the blackboard rubber in his hand to rub it out wherever it had landed.
He was quick and lucky, and didn’t leave a single piece of litter. The forest and its animals managed (30) __________(recover), and they played together for the rest of the day.
The boy never again saw that blackboard, but now, every time he goes to the countryside with his family, he (31) __________ (remember) that adventure and is the first (32) __________ (pick) up any litter. And he is sure to remind the others that anything (33) __________ (leave) in the woods can do more damage to the environment than they ever would have expected.
(B)
It’s likely that your (34)______(big) ambition as a Senior 3 student is to enter a good university this time next year. But (35)_______ makes your dream university ―good‖ enough?
An excellent reputation and high rankings are certainly important, according to a survey (36) ______ (conduct) by Shanghai Municipal Education Commission in 50 Shanghai high schools this summer. Among the 400 students, nearly 64 percent favored universities with top rankings and outstanding academic performance records.
―Compared with lower-ranking universities, a household name on the first-level list usually means more advanced facilities, better lectures and more opportunities. These will all help me settle down to a successful university experience,‖ said Qiu chenhao, 17 of Shanghai’s Jianping High School.
However, great universities are defined by other factors as well. Over 63 percent think that (37) ______ ideal university should have an environment with research freedom, (38) ______ (allow) their students to experiment, succeed and sometimes fail. And a similar number of students believe that a good university (39)______ produce graduates who are particularly sought after by employers.
(40)_____ ______ the fact that employability is highly valued, about 28 percent say that rich history and tradition are a priority for great universities.
Section B (10分)
Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.
finds that accidents involving walkers __41__ the devices have increased three times in recent years.
Researchers combed several sources to find incidents in the U.S. of crashes __42__ walkers and vehicles from 2004 to 2011. Searching the National Injury Surveillance System, the U.S. Consumer Product Safety Commission, Google News archives and Westlaw Campus Research, they found 116 cases of death or injury involving walkers wearing headphones. Cases in which people were using mobile phones (including hands-free devices) were not included.
Over the years the number of cases increased, from 16 in 2004 and 2005 to 47 in 2010 and
2011. The victims’ average age was 21, and most (68 percent) were male. The __43__ (67percent) were under the age of 30. Most (55 percent) were hit by trains, and 70 percent of the crashes, most of which were in urban areas, were __44__.
In 74 percent of the cases, police or eyewitness reports said the walker had headphones on when hit. And 29 percent of reports made mention of horns or warning bells going off before the crash.
The study authors pointed to two likely causes that may be a factor in what they call ―the possible __45__ bet ween headphone use and walker injury‖: sensory deprivation（感官剥夺）and __46__. The latter is more __47__ called ―inattentional blindness,‖ referring to the use of electronic devices and how they decrease attention to things going on around us.
Hearing what’s going on in the environment, they point out, could be more important than __48__ clues for walkers. But the authors add that this study doesn’t show cause or relationship of headphone use and walker risk, and other factors could have been involved in the accidents, such as walkers being intoxicated（陶醉）or drivers being at __49__.
More comprehensive information on such accidents is__50__, the researchers said, to see which groups of people may be most at risk.
III. Reading Comprehension (47’)
Section A (15’)
Directions: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that best fits the context.
Do you often feel tired in the morning even though you’ve been in bed for seven or eight hours the night before? Like many people, you are not sleeping as much as you think you are. ___51___, your sleep efficiency is not that good.
Sleep experts __52__ ―sleep efficiency‖ as the percentage of time that you are actually sleeping.
According to explanatory journalism website https://www.doczj.com/doc/1e13777071.html,, the science of sleep efficiency is still young. There is no ___53___ number for efficiency that’s been proven as linked to poor health. However, according to a New York Times report about sleep ___54___, some experts make a rough estimate of 85 percent or above as a decent place to be.
Besides avoiding caffeine intake after lunch and ___55___ physical exercise before bed, here are more tips for improving sleep efficiency.
Avoid blue light at night
Short wavelength blue light, ___56___ by the sun and by the screens of computers, iPads and smartphones, stops production of the sleep-stimulating hormone melatonin（褪黑激素）and makes you feel more ___57___. Blue light tells your brain it’s daytime. Experts suggest turning off your computers and smartphones one hour or at least 30 minutes before bed. You can also try installing apps that can filter blue light on your ___58___.
Keep a ___59___ sleep schedule
Go to bed and wake up at the same time, or __60___ the same time, every day. Avoid excessive sleeping on t he weekend. Consistency is the key to a good night’s sleep, especially when it comes to waking up. When you have a consistent wake-up time, your brain ___61___ to this and moves through the sleep cycle in preparation for you to feel rested and alert at your wake-up time. Roughly an hour before you wake, hormone levels increase gradually (along with your body temperature and blood pressure), ___62___ you to become more alert.
Take naps
One of the biggest ___63___ in melatonin production happens during the 1 to 3 pm time frame, which explains why most people feel sleepy in the afternoon. If you aren’t getting enough sleep at night, you’re likely going to feel ___64___ to sleep in the afternoon. When this happens, you’re better off taking a short nap (less than 30 minutes) than turning to caffeine or strong tea to keep you awake. A short nap will give you the rest you need to ___65___ the rest of the afternoon, and you’ll sleep much better in the evening than if you drink caffeine or take a long afternoon nap.
51. A. By contrast B. In other words C. In conclusion D. On the contrary
52. A. treat B. serve C. work D. define
53. A. specific B. effective C. general D. precious
54. A. quantity B. absence C. quality D. advance
55. A. undertaking B. restricting C. performing D. referring
56. A. given off B. given away C. given in D. given over
57. A. sleepy B. unconscious C. exhausted D. alert
58. A. installations B. appliances C. devices D. computers
59. A. various B. distinct C. habitual D. changeable
60. A. relatively B. exactly C. gradually D. respectively
61. A. adopts B. adapts C. devotes D. dedicates
62. A. commanding B. permitting C. reminding D. causing
63. A. problems B. peaks C. advantages D. weaknesses
64. A. depressive B. accurate C. desperate D. attentive
65. A. see to B. break through C. take to D. get through Section B
Directions:Read the following three passages. Choose the one that fits best according to the information given in the passage you have just read.
(A)
They say there are three ways to experience the Grand Canyon; on foot, on mules（骡子）or by air. We chose the first. Up early, my husband and I and our three children couldn’t wait to get started. We decided to walk along a lovely path named Bright Angel Trail.
As we set out, I was shocked at how narrow the path was. And I couldn’t he lp noticing that the other tourists weren’t like us. They had heavy backpacks, water bottles, and hats. But as usual we were dressed. As the sun rose higher, Arizona’s famous heat seemed to roast us. There was no shade and our legs were aching. We decided to go back, with the girl on my back and the boys far behind. By the time we finally got back, our legs were like jelly.
The next day, after we’d had a long rest and a good breakfast, we were ready for another view of the Canyon – by air. After our last walk, this would be the easiest thing in the world.
We called to each other excitedly as the plane took off and circled around the Canyon. But the smiles on our faces disappeared as the pilot tossed（翻转）the plane around, pretending he was going to hit the gr ound. I shouted, ―STOP, TAKE US BACK!‖ When we finally arrived back on land, once again our legs were like jelly. We hardly spoke as we drove back.
As I said, there are three ways to view the Grand Canyon. We never tried the mules, but personally I’d sugg est a fourth: buy yourself a good magazine like National Geographic. That way, you can see the Canyon, without fear or tiredness.
66. Which of the following is true according to the second paragraph?
A. They made a careful preparation before the trip.
B. They children were more joyful than their parents.
C. Bright Angel Trail was not as lovely as they expected.
D. The summer heat prevented them from enjoying the view.
67. The underlined expression ―Our legs were like jelly‖ probably means _________.
A. we were weak
B. we were unhappy
C. we were dissatisfied
D. we were disappointed
68. Which of the following best describes their Canyon trip by air?
A. It proved to be frightening.
B. It was more comfortable.
C. It turned out to be exciting.
D. It made each of them tired.
69. We can infer from the passage that __________.
A. experiencing the Canyon on mules would be the best way.
B. one needs to dress less when visiting the Grand Canyon.
C. the writer was not serious when she made the suggestion.
D. the whole family narrowly escaped from the air accident.
(B)
Call 800-6157
70.Where will you post a notice if you need someone to look after your children?
A. PERSONAL.
B. HELP W ANTED.
C. DOMMESTIC SERVICE.
D. ROOMMA TES.
71.A second-hand jacket will probably cost you ________.
A. $60
B. $40
C. $20
D. $10
72.To have your travel notes published, you may contact _________.
A. Students’ Union
B. Gayle Moore
C. The International Center
D. Life-Planning Workshop
73.If you want to have someone wake you up in the morning, you may call _________.
A. 800-5224
B. 800-5770
C. 800-7839
D. 800-0760
(C)
Some nations think they must have more and more babies, more and more people, if they are to remain strong and free.
Actually, this is not so. Very often in history, small nations have conquered large ones. It’s not so much the size of the army as its organization and the technical level of its weapons. Thus, Greece took over Persia in the 300s B.C. , Great Britain took over India in the 1700s, even though Persia and India had far bigger population than Greece and Great Britain.
If a nation wishes to avoid being dominated by its neighbors, its best chance is to raise its standard of living and its level of technology. This can be done best by not allowing its population to grow to such a point that it is sunk in misery and poverty. In fact, the worst way in which a nation can try to avoid being dominated by its neighbor is to increase its population to the point of misery and poverty.
If every nation tries to compete with its neighbors by raising its population, then the whole world will be sunk in misery and poverty. The nations will become weak in a disaster that will leave nothing behind that is worth dominating. No one will have gained anything. Everyone will have lost everything.
Once all this is understood, and people generally agree that population growth must not be allowed to continue, they must also come to understand how that growth can be stopped. Population grows because more people are being born than are dying. There are two ways, then, in which the growth can be stopped. You can increase the number of people who die until it matches the number of people who are being born. Or else you can decrease the number of people who are born until it matches the number of people who are dying.
The first method—increasing the death rate—is the usual way in which population is controlled in all species of living things other than ourselves, but we don’t want that, for disaster lies that way. The intelligent way is to reduce the birth rate. But how can the birth rate be reduced?
74. In paragraph 3, the word ―This‖ refers to ______.
A. avoidance of poverty
B. growth of population
C. improvement of life and technology
D. enhancement of living standard and competition
75. It can be inferred from the passage that if a country had fewer people, ______.
A. it could still remain strong
B. it would be defeated by a strong neighbor
C. its standard of living could be high
D. its people would live misery
76. What might the author be further discussing after the passage?
A. Needs to balance population.
B. Problems involved in birth control.
C. Methods of decreasing population.
D. Opposition from some nations.
77. The passage mainly focuses on ______.
A. why we must control population
B. where we can find a solution
C. how to stop population growth
D. how to become a strong nation
Section C
Directions: Read the passage carefully. Then answer the questions or complete the statements in the fewest possible words.
Americans use the term "college students" to mean students either in colleges or universities. Not only that, Americans almost never say "going off to university" or "when I was in university." That sounds British. Instead, they say "going off to college" and "when I was in college."
College, university: what's the difference? We answer that this week in part three of our Foreign Student Series on American higher education.
Colleges and universities have many things in common. Both offer undergraduate degrees in the arts and sciences, for example. And both can help prepare young people to earn a living.
But many colleges do not offer graduate studies. Another difference is that universities are generally bigger. They offer more programs and do more research.
Another place of higher education, especially in technical areas, is an institute, like the Massachusetts Institute of Technology. Yet even an institute of technology can offer a wide choice of programs and activities. M.I.T. says that seventy-five percent of freshmen come there with a strong interest and involvement in the arts.
Modern universities developed from those of Europe in the Middle Ages. The word "university" came from the Latin universitas, describing a group of people organized for a common purpose.
"College" came from collegium, a Latin word with a similar meaning. In England, colleges
were formed to provide students with places to live. Usually each group was studying the same thing. So college came to mean an area of study.
The first American universities divided their studies into a number of areas and called each one a college. This is still true.
A college can also be a part of a university. For example, Harvard College is the undergraduate part of Harvard University.
Programs in higher learning can also be called schools, like a school of engineering or a medical school within a college or university. You know, learning all these terms is an education in itself.
(Note: Answer the questions or complete the statements in NO MORE THAN 14 WORDS.)
78.Two things that a college and a university have in common are that ___________________.
79.What are the four places of higher education?
________________________________________________
80.What did the word ―university‖ originally mean?
________________________________________________
81.What is the main idea of this passage?
________________________________________________
第II卷（共47分）
I. Translation （4+4+4+5+5）
Directions: Translate the following sentences into English, using the words given in the brackets.
1.尽管交通很拥挤，志愿者活动还是按照原计划举行了。(despite)
2.他总是觉得自己比同龄人优越，这让他不受人欢迎。(superior)
3.新建的图书馆为读者们提供各种书籍，包括一些畅销书。(provide)
4.假如一个广告声称某种药能治愈任何人的任何疾病，那肯定是假的。(claim)
5.直到看到报纸上的报道，她才意识到企图隐瞒事实是不可能的。（Not until）
II. Guided Writing (25)
Directions: Write an English composition in 120-150 words according to the instructions given below.
随着生活节奏的不断加快，现代人所面临的压力越来越大，―减压‖（to relieve pressure)成了人们津津乐道的话题。调查表明：网上聊天(chatting online)、旅游(travelling)、读书(reading)、听音乐(listening to music)等是最受人们欢迎的―减压‖方式。
请你结合自己的生活实际从中选择两至三种你最喜欢的―减压‖方式，并分别说说它们如何起到减压的效果。
华东师大三附中2014学年第二学期第二次月考
高二英语参考答案
Listening:
1-10DBACA CBDCA
11-16 BDD BAC
17-20 Apartment 2394027 Thursday checkup
21-24 speak English fluently a nurse warm personality draw pictures
Grammar:
25. when 26. excited 27. which 28. something
29. to blame 30. to recover 31. will remember 32. to pick
33. left 34. biggest 35. what 36. conducted
37. an 38. allowing 39. should 40. Regardless of
Vocabulary:
41-50 EBAHC FIDKJ
Cloze:
51-65 BDACB ADCCA BDBCD
Reading:
66-77 CAAC BBCD CACA
78.Two things that a college and a university have in common are that they both offer
undergraduate degrees and help prepare young people to earn a living.
79.What are the four places of higher education?
The college, university, school and institute.
80.What did the word ―university‖ originally mean?
A group of people organized for a common purpose.
81.What is the main idea of this passage?
An introduction to the places of American higher education.
(or) what is the difference between a college and a university.
中译英：
1. Despite the heavy traffic, the volunteer activity was still held as planned/ as it was planned/
according to the plan.
2. He is always feeling that he is superior to his peers, which makes him not popular with others..
3. The newly-built library provides readers with different kinds of books, including some best-sellers.
4. If an advertisement claims that a certain medicine can cure anybody of any disease, it must be false.
5. Not until she read the report in the newspaper did she realize/was she aware that it was impossible to attempt / try to hide/cover up the fact.
2011——2012学年下期高二第二次月考 物理 （考试时间：90分钟，满分100分） 命题人：审题人： 第Ⅰ卷 一、选择题(本题包括12小题。在每小题给出的四个选项中,至少有一项符合题意，请将正确答案的序号填涂在答题卡上。全对得4分，对而不全得2分，共48分) 1．关于多普勒效应，以下说法正确的是（） A．机械波、电磁波、光波均能产生多普勒效应 B．当波源与观察者相对运动时，观察者接受到的频率增大 C．产生多普勒效应的原因是波源的频率发生了变化 D．只有机械波才能产生多普勒效应 2．关于光的干涉和衍射，下列说法正确的是( ) A．形成原因完全相同 B．水面上的油层在阳光照射下出现的彩色条纹是光的干涉现象 C．泊松亮斑是光的衍射现象 D．激光防伪标志看起来是彩色的，这是光的干涉现象 3．关于电磁场和电磁波，下列说法正确的是( ) A．当一个磁场变化时，其周围一定能形成电磁波 B．一个匀强磁场和一个匀强电场正交就形成了电磁场 C．电磁波的传播不一定需要介质 D．电磁波的频率等于激起它的振荡电流的频率 4．红外线夜视仪是利用了( ) A．红外线波长长，容易绕过障碍物的特点 B．红外线热效应强的特点 C．一切物体都在不停地辐射红外线的特点 D．红外线是不可见光的特点 5．设某人在以速度为0.5c的飞船上，打开一个光源，则下列说法正确的是( ) A．飞船正前方地面上的观察者看到这一光速为1.5c B．飞船正后方地面上的观察者看到这一光速为0.5c C．在垂直飞船前进方向地面上的观察者看到这一光速是c D．在地面上任何地方的观察者看到的光速都是c 6 在下列各组所说的两个现象中，都表现出光具有粒子性的是（） A．光的折射现象、偏振现象B．光的反射现象、干涉现象 C．光的衍射现象、色散现象D．光电效应现象、康普顿效应 7．光照射到某金属表面，金属表面有光电子逸出，则( ) A若入射光的频率增加，光的强度减弱，那么逸出电子的最大初动能可能不变 B若入射光的频率不变，光的强度减弱，那么单位时间内逸出电子数目减少 C若入射光的频率不变，光的强度减弱到不为零的某一数值时，可能不再有电子逸出 D若入射光的频率增加，而强度不变，那么单位时间内逸出电子数目不变，而光电子的最大初动能增大 8．一潜水员在水深为h的地方向水面观察时，发现整个天空及远处地面的景物均呈现在水面处的一圆形区域内。已知水的折射率为n，则圆形区域的半径为( )
高二数学第一次月考试卷 （文科） （时间：120分钟 满分：150分） 第Ⅰ卷 （选择题 共60分） 12道小题，每题5分，共60分） 、已知函数f(x)=a x 2＋c,且(1)f '=2,则a 的值为（ ） A.1 B.2 C.－1 D. 0 、 0'() f x =0是可导函数y=f(x)在点x=0x 处有极值的 ( ) A ．充分不必要条件 B ．必要不充分条件 C ．充要条件 D ．非充分非必要条件 、函数 3 y x x =+的递增区间是（ ） A )1,(-∞ B )1,1(- C ),1(+∞ D ),(+∞-∞ 、．函数3 13y x x =+- 有 （ ） A.极小值-1，极大值1 B. 极小值-2，极大值3 C.极小值-1，极大值3 D. 极小值-2，极大值2 、已知回归直线的斜率的估计值是1.23，样本点的中心为(4，5)，则回归直线的方程是( ) A.y ∧ =1.23x ＋4 B. y ∧=1.23x+5 C. y ∧=1.23x+0.08 D. y ∧ =0.08x+1.23 6、.设)()(,sin )('010x f x f x x f ==，'21()(),,f x f x =L '1()()n n f x f x +=，n ∈N ，则2007()f x =（ ） A.sin x B.－sin x C.cos x D.－cos x 、用火柴棒摆“金鱼”，如图所示： 按照上面的规律，第n 个“金鱼”图需要火柴棒的根数为 ( ) A ．62n - B ．62n + C ．82n - D ．82n +\ 、若a b c ，，是不全相等的实数，求证：222 a b c ab bc ca ++>++． a b c ∈R ，，∵，2 2 2a b ab +∴≥，2 2 2b c bc +≥，2 2 2c a ac +≥， a b c ，，∵不全相等，∴以上三式至少有一个“=”不成立， ∴将以上三式相加得2222()2()a b c ab b c ac ++>+++，222 a b c ab bc ca ++>++∴． 此证法是（ ） Ａ．分析法 Ｂ．综合法 Ｃ．分析法与综合法并用 Ｄ．反证法 9、．从推理形式上看，由特殊到特殊的推理，由部分到整体、个别到一般的推理，由一般到特殊的推理依次是（ ） A ．归纳推理、演绎推理、类比推理 B ．归纳推理、类比推理、演绎推理 C ．类比推理、归纳推理、演绎推理 D ．演绎推理、归纳推理、类比推理 10、计算1i 1i -+的结果是( ) A ．i - B ．i C ．2 D ．2- 11、复数z=-1+2i ，则 z 的虚部为( ) A ．1 B ．-1 C ．2 D ．-2 12、若复数 1 2z i = +，则z 在复平面内对应的点位于( ) 第Ⅱ卷 （非选择题 共90分） 二、填空题（4道小题，每题5分，共20分） 13、与直线 2 240x y y x --==平行且与曲线相切的直线方程为_____________ 14、有下列关系： （1）曲线上的点与该点的坐标之间的关系； （2）苹果的产量与气候之间的关系； （3）森林中的同一种树木，其断面直径与高度之间的关系； （4）学生与他（她）的学号之间的关系， 其中有相关关系的是_________ 15 . 16、实数x 、y 满足（1–i ）x+(1+i)y=2,则xy 的值是_________ … ① ② ③
高二年级半月考试卷（英语） 使用时间：2015年4月2日测试时间： 90分钟总分： 120分 第一部分阅读理解（共两节，满分40分） 第一节（共15小题；每小题2分，满分30分） A A woman who lived in a coma（昏迷）for 42 years, unendingly cared for by her family, died Wednesday in her home in Miami Gardens, Fla. Edwarda O’Bara was a 17-year-old high school student in 1970 when she became sick from her diabetes(糖尿病)medication and slipped into a diabetic coma. Just before she lost consciousness, Edwarda asked her mother, Kaye O’Bara, to never leave her side, and her family never d id. Edwarda’s father, Joe O’Bara, and Kaye took care of their daughter—reading to her, playing her music, making sure she was turned every two hours, bathed, given insulin(胰岛素)and given nourishment through a feeding tube—until their deaths in 1976 and 2008, respectively. After that, Edwarda’s sister Colleen O’Bara took over. Her family’s unending care for her became a story told across the world. And visitors from across the world traveled to the Miami Gardens home every year, sometimes appearing at the doorstep on random days, other times for Edwarda’s yearly birthday party, a cheerful affair with decorations, balloons and cake. Through it all, Edwarda remained in a coma. But to her family and followers she remained alive. Colleen O’Bara described her as “the best sister in the whole wide world.” “She taught me so much, especially after she was in the coma, ” Colleen O’Bara said, “She taught me so much about unconditional love that I couldn’t say I had it before. She taught me about patience that I didn’t have before. I learned so much from taking care of my sister. It’s like I grew up overnight. ” In an announcement of Edwarda’s death posted Thursday on a website, Colleen O’Bara wrote: “Yesterday while taking care of Edwarda I noticed her looking directly a t me and gave me the biggest smile I had ever seen. She then closed her eyes and joined my Mom in Heaven. ” 1. How old was Edwarda O’Bara when she died? A. 56. B. 57. C. 58. D. 59. 2. Edwarda’s parents did everyt hing below to take care of her EXCEPT_____________. A. reading to her B. playing her music C. taking a walk with her D. turning her every two hours 3. What’s the main idea of the passage? A. Edwarda’s family’s selfless care for her became a story told across the world. B. Edwarda became sick from her diabetes medication and slipped into a diabetic coma. C. Edwarda died after 42 years of coma and her family kept their promise to take good care of her. D. Edwarda smiled when she died. B When Josephine Cooper was growing up, she learned the importance of charity from her parents.
2015-2016上海市高二数学期末试卷 （共150分，时间120分钟） 一、选择题（每小题5 分，共12小题，满分60分） 1.对抛物线24y x =，下列描述正确的是（ ） A 开口向上，焦点为(0,1) B 开口向上，焦点为1(0, )16 C 开口向右，焦点为(1,0) D 开口向右，焦点为1 (0,)16 2.已知A 和B 是两个命题，如果A 是B 的充分条件，那么A ?是B ?的 （ ） A 充分条件 B 必要条件 C 充要条件 D 既不充分也不必要条件 3.椭圆2255x ky +=的一个焦点是(0,2)，那么实数k 的值为（ ） A 25- B 25 C 1- D 1 4.在平行六面体ABCD-A 1B 1C 1D 1中，M 为AC 与BD 的交点，若11A B a =, b D A =11， c A A =1，则下列向量中与M B 1相等的向量是（ ） A c b a ++-2121 B c b a ++2121 C c b a +-2121 D c b a +--2 1 21 5.空间直角坐标系中，O 为坐标原点，已知两点A （3，1，0），B （-1，3，0）， 若点C 满足OC =αOA +βOB ，其中α，β∈R ，α+β=1，则点C 的轨迹为（ ） A 平面 B 直线 C 圆 D 线段 6.给出下列等式：命题甲：2 2,2,)2 1 (1x x x -成等比数列，命题乙：)3lg(),1lg(,lg ++x x x 成等差数列，则甲是乙的（ ） A 充分非必要条件 B 必要非充分条件 C 充要条件 D 既非充分又非必要条件 7.已知a =(1,2,3),b =（3，0，-1），c =?? ? ??--53,1,5 1给出下列等式： ①∣c b a ++∣=∣c b a --∣ ②c b a ?+)( =)(c b a +? ③2)(c b a ++=2 22c b a ++
江苏省盐城中学高二物理月考试题（12月） 一、单项选择题。本题共 6小题，每小题 4 分，共24分。每小题只有一个选项符合题意，选对的得4分，选错或不答的得0分。 1、磁铁在高温下或者受到敲击时会失去磁性，根据安培的分子电流假说，其原因是（） A．分子电流消失 B．分子电流的取向变得大致相同 C．分子电流的取向变得杂乱 D．分子电流的强度减弱 2、条形磁铁竖直放置，闭合圆环水平放置，条形磁铁中心线穿过圆环中心，如图所示。若圆 环为弹性环，其形状由Ⅰ扩大为Ⅱ，那么圆环内磁通量变化情况是（） A．磁通量增大 B．磁通量减小 C．磁通量不变 D．条件不足，无法确定 3、在电路的MN间加一如图所示正弦交流电，负载电阻为100Ω，若不考虑电表内阻对电路 的影响，则交流电压表和交流电流表的读数分别为（） A．220V，2.20 A B．311V，2.20 A C．220V，3.11A D．311V，3.11A 4、在电磁感应现象中，有一种叫做自感现象的特殊情形，图1和图2是研究这种现象的演示 实验的两种电路图。下列关于自感的说法正确的是（） A．在做图1实验中接通电路的瞬间，两灯同时亮 B．在做图1实验中断开电路时线圈L没有产生自感电动势 C．在做图2实验中断开电路时灯泡A一定会闪亮一下 D．线圈自感系数越大、电流变化越快，产生的自感电动势越大 5、如图所示，在两平行光滑的导体杆上，垂直放置两导体ab、cd，其电阻分别为R1和R2且 R1
2015-2016第一学期 高二数学月考试卷 1．直线022=+-y ax 与直线01)3(=+-+y a x 平行，则实数a 的值为. 2、已知点P （0，-1），点Q 在直线x-y+1=0上，若直线PQ 垂直于直线x+2y-5=0，则点Q 的坐标是 3．已知点)(b a P ，在圆2 2 2 :r y x C =+外，则直线2 :r by ax l =+与圆C ． 4、如果直线0412 2 =-++++=my kx y x kx y 与圆交于M 、N 两点，且M 、N 关于直线 01=-+y x 对称，则k -m 的值为 5．已知O 是坐标原点，点A )1,1(-，若点M ),(y x 为平面区域?? ? ??≤≤≥+212 y x y x 上的一个动点， 则OM z ?=的取值范围是. 6．已知动圆0264222=-+--+m my mx y x 恒过一个定点,这个定点的坐标是____． 7．一直线过点M （－3， 2 3），且被圆x 2+y 2=25所截得的弦长为8，则此直线方程为. 8、若直线y=x+b 与曲线21y x -=恰有一个公共点，则实数b 的取值范围为 9、若圆2 2 2 )5()3(r y x =++-上有且只有两个点到直线4x －3y=2的距离等于1，则半径r 范围是； 10．光线沿0522=+++y x ()0≥y 被x 轴反射后，与以()2,2A 为圆心的圆相切，则该圆的方程为． 11．直线l ：03=-+y x 上恰有两个点A 、B 到点（2，３）的距离为2，则线段ＡＢ的长 为. 12．如果圆22()()4x a y a -+-=上总存在两个点到原点的距离为1，则实数a 的取值范围是． 13．若直线)0,0(022>>=+-b a by ax 被圆01422 2 =+-++y x y x 截得的弦长为4，则 b a 1 1+的最小值为. 14．已知圆062 2 =+-++m y x y x 与直线032=-+y x 相交于P ，Q 两点，
（命题人：陈晓燕） 时间：120 分钟满分120 高二英语月考试卷10.What is the probable relationship between the man and the woman? A. They are husband and wife B. They are friends C. They are newly-married couple. 第二部分:英语知识运用（共三节，满分35 分） 第一卷（选择题部分，共90 分） 第一部分：听力（共10 小题，每小题１分，共10 分） 第一节：听下面5 段对话，每段对话后有一小题，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，你有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 was the score? A. 0: 40 B. 0: 14 C. 0: 4 2.When will the shirts be finished? A.Sunday afternoon B. Friday afternoon C . Saturday afternoon 3.What does the man mean? A.It will take him a long time to help the woman B. He can help her for a while C. It won’t take a long time for him to help her 4.How much did the man pay for the tickets? A. $ 12 B. $ 16 C. $ 4 5.Where is the woman going now? A .To school B .To the shop C. To her friend’s house 第二节:听下面5 段对话或独白。每段对话或独白后有几小题，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。听完每段对话或独白，你将有时间阅读各个小题，每小题5 秒钟的时间作时间。。每段对话或独白读两遍。 听第6 段材料，回答第6---7 题 6.Which of the following did the doctor NOT do? A.Take the temperature B. Look at the throat C. Examine the eyes 7.How often should Richard take the medicine? A.Four times a day B. Three times a day C. Twice a day 听第7 段材料，回答第8---10 题 8.How is the kitchen? A.It’s very big B. It’s well equipped C. It’s too modern 9.What is the woman going to do next? A.To buy some furniture B. To move into the house C. To decorate the house 第一节语音知识（共5 小题，每小题1 分，满分5 分） 从 A BCD 四个选项中，找出其划线部分与所给单词的划线部分读音相同的选项，并在答题卡上将该项涂黑。 11.course A. journey B. four C. labour D. hour 12.match A. marry B. separate C. machine D. many 13.watched A .filled B. recognized C. whispered D. practised 14．climb A. thumb B. method C. rude D. applaud 15.how A. sow B. bow C. morrow D. throw 第二节语法和词汇知识（共20 小题，每小题1 分，满分20 分） 16．it is to have a cold drink on such a hot day! A. What a fun B. What fun C. How fun D. How a fun 17 ------ Mr Bardon changed his mind to take part in the movement ? ----- After he listened to the speech by Mr King. A. When was that it B. When was it that C. When was that D. When was it 18.Outside were four large stone figures, was 20 metres high. A．each of them B. all of them C. each of which D. all of which 19.With the boy the way ,we found that faraway village very easily. A. led B. leading C. to lead D. being led 20 ------ Robert is indeed a wise man. ----- Oh, yes , how I have regretted his advice. A. to take B. not taking C. not to take D. taking 21.his pale face ,we all suggested to see the doctor right away. A. Seeing ; he going B. Having seen ;him go C. Seeing ;his going D. Seen ;him going 22.Who did the manager of the company the report? A. have writing B. have write C. have writes D. have to write 23. back to the Ming Dynasty, the temple can offer us much useful information about history.
建平中学2019学年度第二学期期末考试 高二数学试卷 2020.06.30 说明：（1）本场考试时间为120分钟，总分150分； （2）请认真答卷，并用规范文字书写． 一、填空题（第1-6题每题4分，第7-12题每题5分，满分54分） 1．半径为1的球的表面积为______________． 【答案】4π 2．二项式()10 1x +的展开式中5 x 的系数为_____________． 【答案】252 3．圆锥的底面半径为1，一条母线长为3，则此圆锥的高为_______________． 【答案】4．若2 666n n C -=，则正整数n 的值为_______________． 【答案】37 5．已知0 01x y x y ≥?? ≥??+≤? ，则2x y -的最小值为_____________． 【答案】1- 6．数据110,119,120,121的方差为_____________． 【答案】19.25 7．已知关于,,x y z 的实系数三元一次线性方程组111122223333a x b y c z d a x b y c z d a x b y c z d ++=??++=??++=?有唯一解415 x y z =?? =??=-? ，设
1 112 223 3 3d b c A d b c d b c =，11122233 3 a d c B a d c a d c =，111 2 2233 3 a b d C a b d a b d =，则A B C ++=_____________． 【答案】0 8．已知{ }* ,2020,N a b x x x ∈≤∈，满足a b <的有序实数对(),a b 的个数为_________． 【答案】2039190 9．已知关于,x y 的实系数二元一次线性方程组的增广矩阵为22126a A -?? = ??? ，小明同学为了求解 此方程组，将矩阵A 进行初等变换得到矩阵21715B b -?? = ??? ，则a b +=_____． 【答案】2 10． 111111111110!10!1!9!2!8!3!7!4!6!5!5!6!4!7!3!8!2!9!1!10!0! ++++++++++=_______． 【答案】 4 14175 11．已知等边ABC △的边长为2，设BC 边上的高为AD ，将ADC △沿AD 翻折使得点B 与点C A BCD -的外接球的体积为_____________． 【答案】 6 12． ()()()() 2 3 4 6 54326 54321031111x x x a x a x a x a x a x a x a x ---=++++++-对任意()0,1x ∈恒成立， 则3a =______________． 【答案】6 二、选择题（每题5分，满分20分）
2018-2019学年第二学期高二年级月考试卷 物理试卷 （考试时间：100分钟，满分：100分） 注意事项： 1.本卷满分100分，时间100分钟。答卷前，考生务必将自己的姓名、考号、班级填写在答题卡相应的位置。 2.作答时，将答案都写在答题卡上。写在本试卷上无效。 卷I（选择题） 一、选择题（本题共计 12小题，第1～8题单选题，第9～12题多选题，多选题少选得2分，多选、错选都不得分。每题 4 分，共计48分，） 1.首先发现电流的磁效应和电磁感应现象的物理学家分别是( ) A．安培和法拉第 B．法拉第和楞次 C．奥斯特和安培 D．奥斯特和法拉第 2. 关于电磁感应现象，下列说法中正确的是（） A.只要有磁通量穿过电路，电路中就有感应电流 B.只要闭合电路在做切割磁感线运动，电路中就有感应电流 C.只要穿过闭合电路的磁通量足够大，电路中就有可能产生感应电流 D.只要穿过闭合电路的磁通量发生变化，电路中就一定有感应电流 3. 一接有电压表的矩形线圈在匀强磁场中向右作匀速运动，如图所示，下列说法正确的是 A.线圈中有感应电流，有感应电动势 B.线圈中无感应电流，也无感应电动势 C.线圈中无感应电流，有感应电动势 D.线圈中无感应电流，但电压表有示数 4．如图所示，理想变压器原、副线圈匝数比n1∶n2＝2∶1，和均为理想电表，灯泡电阻R L＝6 Ω，AB端电压u1＝122sin 100πt(V)．下列说法正确的是( ) A．电流频率为100 Hz B.的读数为24 V C.的读数为0.5 A D．变压器输入功率为6 W 5．理想变压器原、副线圈匝数比为10∶1，以下说法中正确的是( ) A．穿过原、副线圈每一匝磁通量之比是10∶1 B．穿过原、副线圈每一匝磁通量的变化率相等 C．原、副线圈每一匝产生的电动势瞬时值之比为10∶1 D．正常工作时原、副线圈的输入、输出功率之比为1∶10 6. 如图表示一交流电的电流随时间而变化的图象．此交流电的有效值是( ) A．52A B．5A C.7 2 2A D. 7 2 A 7.如图所示的金属圆环放在匀强磁场中，将它从磁场中匀速拉出来，下列哪个说法是正确的（） A．向左拉出和向右拉出，其感应电流方向相反 B．不管从什么方向拉出，环中的感应电流方向总是顺时针的 C．不管从什么方向拉出，环中的感应电流方向总是逆时针的 D．在此过程中感应电流大小不变 8.如图所示，A、B、C是相同的白炽灯，L是自感系数很大、直流电阻为零的自感线圈．现 将S闭合，下面说法正确的是（） A. B、C灯同时亮，A灯后亮 B. A、B、C灯同时亮，然后A灯逐渐变暗，最后熄灭 C. A灯一直不亮，只有B灯和C灯亮 D. A、B、C灯同时亮，并且亮暗没有变化 9.（多选）如图所示，在磁感应强度大小为B、方向竖直向上的匀强磁场中，有一质量为m、阻值为R的闭合 矩形金属线框abcd，用绝缘轻质细杆悬挂在O点，并可绕O点左右摆动。金属线框从右侧某一位置静止开始释 放，在摆动到左侧最高点的过程中，细杆和金属线框平面始终处于同一平面，且垂直纸面。下列说法中正确的 是（） A.线框中感应电流的方向先是d→c→b→a→d，后是a→b→c→d→a B.线框中感应电流的方向是d→c→b→a→d C.穿过线框中的磁通量先变大后变小 D.穿过线框中的磁通量先变小后变大 10．(多选)一只闭合的矩形线圈在匀强磁场中绕垂直于磁感线的轴匀速转动，穿过线圈的磁通量随时间的变化 图象如图所示，则下列说法正确的是( ) A．t＝0时刻线圈平面与中性面重合 B．t＝0.1 s时刻，穿过线圈平面的磁通量的变化率最大 C．t＝0.2 s时刻，线圈中有最大感应电动势 D．若转动周期减小一半，则电动势也减一半 11．(多选)如图所示，A、B两闭合线圈为同样导线绕成，A有10匝，B有20匝，两圆线圈半径之比 为2：1．均匀磁场只分布在B线圈内．当磁场随时间均匀减弱时（） A．A中无感应电流 B．A、B中均有恒定的感应电流 C．A、B中感应电动势之比为2：1 D．A、B中感应电流之比为1：2 12.（多选）电能输送过程中，若输送的功率一定，在输电线电阻不变的情况下，输电线上损失的电功率（） A.与输送电压的平方成正比 B.与输送电压的平方成反比 C.与输电线上电压损失的平方成正比 D.与输电线中电流的平方成正比
高二数学期中试题 一、选择题（本大题共12个小题，每小题5分，共60分） 1.下列说法中正确的是 （ ） A.棱柱的侧面可以是三角形 B.正方体和长方体都是特殊的四棱柱 C.所有的几何体的表面都能展成平面图形 D.棱柱的各条棱都相等 2. （ ） A.圆柱 B.圆锥 C.圆台 D.球 3.在等差数列{a n }中，若a 4＋a 6＋a 8＋a 10＋a 12＝120，则2 a 10－a 12的值为（ ） (A)20 (B)22 (C)24 (D)28 4.圆锥的底面半径为r ，高是h ，在这个圆锥内部有一个内接正方体，则此正方体的棱长等于 （ ） A. h r rh + B.h r rh +2 C.h r rh 222+ D.h r rh +2 5.在ABC ?中，0 120,5.1,2=∠==ABC BC AB （如下图）， 若将ABC ?绕直线BC 旋转一周，则所形成 的旋转体的体积是 （ ） A. 29π B.27π C.25π D.2 3π 6.下面4个命题：①若直线b a 与异面，c b 与异面，则c a 与异面 ②若直线b a 与相交，c b 与相交，则c a 与相交 ③若直线c b b a //,//，则c b a //// ④若直线c b a b a 与直线则,,//所成的角相等 其中真命题的个数是 （ ） A.4 B.3 C.2 D.1 正视图 侧视图 俯视图 A C B D 0 120
7.空间四边形的两对角线的位置关系是 （ ） A.相交 B.平行 C. 异面 D.或相交或平行或异面 8.表示直线、表示平面，、、n m γβα，下列说法中可以判定βα//的是 （ ） ①γβγα⊥⊥, ②由α内不共线的三点作平面β的垂线，各点与垂足间线段的长度都相等 ③βα⊥⊥n m n m ,,// ④内两条直线，且是、αn m ββ////n m ， A.①② B.② C.③④ D.③ 9.菱形ABCD 在平面α内，BD PA PC 与对角线则,α⊥的位置关系是 （ ） A.平行 B.相交但不垂直 C.垂直相交 D. 异面垂直 10.点P 是等腰三角形ABC 所在平面外一点，ABC PA ABC PA ?=⊥，在，平面8中，底边 BC P AB BC 到，则，56==的距离为 （ ） A.54 B.3 C.33 D.32 11.下面四个命题： ①分别在两个平面内的直线平行 ②若两个平面平行，则其中一个平面内的任何一条直线必平行于另一个平面 ③如果一个平面内的两条直线平行于另一个平面，则这两个平面平行 ④如果一个平面内的任何一条直线都平行于另一个平面，则这两个平面平行 其中正确的命题是 （ ） A.①② B.②④ C.①③ D.②③ 12.已知直线b a ,和平面α，有以下四个命题： ①若αα//,//,//b b a a 则 ②若b a A b a 与，则，=? αα异面 ③若αα⊥⊥a b b a 则,,// ④若αα//,,b a b a 则⊥⊥ 其中真命题的个数为 （ ） A.0 B.1 C.2 D.3 二、填空题（本大题共4个小题，每小题4分，共16分，将答案直接写在横线上） 13.在正方体1111D C B A ABCD -中，若过1B C A 、、三点的平面与底面1111D C B A 的交线为l ，则 AC l 与的位置关系是_________。 14．黑白两种颜色的正六边形地面砖按如图的规律拼成若干个图案：
高二英语月考试卷 （卷面分：150 分考试时间：120 分钟） 第Ⅰ卷 第一部分：听力（共两节，满分30 分） 第一节（共5小题；每小题分，满分分） 听下面 5 段对话。每段对话后有一个小题，并标在试卷的相应位置。听完每段对话后，你都有从题中所给的A、B、C 三个选项中选出最佳选项， 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.Who joined the company recently A. Some photographer. B. An art director. C. Some designers. 2.What does the woman mean A. She is a visitor. B. She just moved in here. C. She knows the manager. 3.What did the woman do last weekend A. She stayed at home. B. She went boating. C. She took a walk. 4.Where is National City Bank 5.What will Lisa do after work A. Pick up her friends. B. Go for a drink with her friends. C. Meet her friends at a repair shop. 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 至 7 题。 6. What does the man think of the French restaurant A. It’s too far away. B. The price is too high. C. The menu is too old. 7. Why does the man want to eat in A. He ’s tired of eating out. B. He ’s good at cooking. C. He ’s in bad mood. 听第 7 段材料，回答第8 至 10 题。 8. What is Tony’s nationality A. British. B. Canadian. C. French. 9. Why has Tony come to China A. To seek a better life. B. To do banana trade. C. To find his root. 10. How does Tony find his experience in China A. Interesting. B. Crazy. C. Disappointing. 听第 8 段材料，回答第11 至 13 题。 11. What are the speakers talking about A. Old schoolmates. B. High school life. C. A company meeting. 12.What did Sally try to show her friends A. She was very happy. B. She was interested in Simon. C. She was successful in
高二下学期期末考试数学试题 （考试时间：120分钟 满分：150分 ） 一、填空题（本大题共有14题，满分56分）考生应在答题纸相应编号的空格内直接填写结果，每个空格填对得4分，否则一律得零分． 1.过点)2,1(、)6,3(的直线的斜率为______________． 2.若i 是虚数单位，复数z 满足5)43(=-z i ,则z 的虚部为_________． 3.正四面体ABC S -的所有棱长都为2，则它的体积为________． 4.以)2,1(-为圆心且过原点的圆的方程为_____________． 5.从一副52张扑克牌中第一张抽到“Q ”，重新放回，第二张抽到一张有人头的牌，则这两个事件都发生的概率为________． 6.已知圆锥的高与底面半径相等，则它的侧面积与底面积的比为________． 7.正方体1111D C B A ABCD -中，二面角111C D A B --的大小为__________． 8.双曲线14 22 =-y x 的顶点到其渐近线的距离等于_________． 9.某人5次上班途中所花的时间（单位：分钟）分别为9,11,10,,y x .已知这组数据的平均数为10，方差为2，则=-||y x __________． 10.在长方体1111D C B A ABCD -中，已知36,91==BC AA ， N 为BC 的中点，则直线11C D 与平面N B A 11的距离是___________． 11.棱长为1的正方体1111D C B A ABCD -的8个顶点都在球面O 的表面上，E 、F 分别是棱1AA 、1DD 的中点，则直线EF 被球O 截得的线段长为________． 12.从3名骨科、4名脑外科和5名内科医生中选派5人组成一个抗震救灾医疗小组,则骨科、脑外 科和内科医生都至少有1人的选派方法种数是___________．(用数字作答) 13.在棱长为1的正方体盒子里有一只苍蝇，苍蝇为了缓解它的无聊，决定要考察这个盒子的每一个角，它从一个角出发并回到原处，并且每个角恰好经过一次，为了从一个角到另一个角，它或直线飞行，或者直线爬行，苍蝇的路径最长是____________．（苍蝇的体积不计） 14.设焦点是)5,0(1-F 、)5,0(2F 的双曲线C 在第一象限内的部分记为曲线T ，若点ΛΛ),,(),,2(),,1(2211n n y n P y P y P 都在曲线T 上，记点),(n n y n P 到直线02:=+-k y x l 的距离为),2,1(Λ=n d n ,又已知5lim =∞ →n n d ，则常数=k ___________． 二、选择题（本大题共有4题，满分20分）每题有且只有一个正确答案，考生应在答题纸的相应编号上，将代表答案的小方格涂黑，选对得5分，否则一律得零分. 15.一个圆柱形的罐子半径是4米，高是9米，将其平放，并在其中注入深2米的水，截面如图所示，水的体积是（ ）平方米. A ．32424-π B ．33636-π C ．32436-π D ．33648-π 第15题图