【 – 高中作文】
【第一篇】安徽教育网官网高考
2015年高考英语试卷安徽卷(含答案)
2015年普通高等学校招生全国统一考试(安徽卷)
英 语
第Ⅰ卷
第一部分 听力(共两节,满分30分)
第二部分 英语知识运用(共两节,满分45分)
第一节 单项填空(共15小题;每小题1分,满分15分)
从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。 例: It is generally considered unwise to give a child ______ he or she wants.
A. however B. whatever C. whichever D. whenever 答案是B
21. — Can you come to a party on Saturday, Peter? — Oh, ______I'm already going out, I'm afraid. A. what a pity! A. develop A. Once
B. don't ask! B. create B. Since B. had left B. whom B. superior B. Ignoring B. that
C. how come? C. substitute C. Though
D. so what? D. experience D. Unless D. was leaving D. when D. attractive D. Having ignored D. which D. has been built D. authority D. deliberately
22. If you come to visit China, you will ______ a culture of amazing depth and variety. 23. ______ scientists haw learned a lot about the universe, there is much we still don't know. 24. Just as I got to the school gate, I realised I ______ my book in the cafe. A. have left A. what A. special A. Ignore A. it
C would leave C. why C. grateful C. Ignored C. whose
25. A ship in harbor is safe, but that’s not ______ ships are built for.
36. I’m so ______ to all those volunteers because they helped my terrible day end happily.
27. ______ the difference between the two research findings will be one of the worst mistakes you make. 28. Some experts think reading is the fundamental skill upon______ school education depends. 29. It is reported that a space station ______ on the moon in years to come. A. will be building A. thought A. legally
B. will he built C. has been building
B. support B. sincerely
C. protection C. personally
30. There is no need to tell me your answer now. Give it some ______ and then let me know. 31. They gave money to the old people's home either ______ or through their companies. 32. It is lucky we booked a room, or we ______nowhere to stay now.
A. had B. had had
C. would have C. around the clock C. In case
D. would have had D. around the comer D. Now that
33. They believe that there are transport developments ______ that will bring a lot of changes for the better, A. out of date A. Where
B. out of order
B. As
34. ______ he once felt like giving up, he now has the determination to push further and keep on going. 35. — How is your table tennis these days? Still playing? —______. I just don't seem to find the time these days. A. That's right
第二节 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(A、B、C、和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
In our modern world, when something wears out, we throw it away and buy a new one. The is that countries around the world have growing mountains of because people are throwing out more rubbish than ever before.
How did we a throwaway society? First of all, it is now easier to an object than to spend time and money to repair it. modern manufacturing (制造业) and technology, companies are able to produce products quickly and inexpensively. Products are plentiful and
Another cause is our of disposable (一次性的) products. As people, we are always looking for to save time and make our lives easier. Companies thousands of different kinds of disposable products: paper plates, plastic cups, and cameras, to name a few.
Our appetite for new products also to the problem. We are buying new things. Advertisements persuade us that is better and that we will be happier with the latest products. The result is that we useful possessions to make room for new ones.
All around the world, we can see the of this throwaway lifestyle. Mountains of rubbish just keep getting bigger. To the amount of rubbish and to protect the , more governments are requiring people to recycle materials. 解决) our problem.
Maybe there is another way out. We need to repair our possessions throwing them away. We also need to rethink our attitudes about the best way to reduce the amount of rubbish and take care of our environment. 36. A. key 37. A. gifts 38. A. face 39. A. hide 41. A. safe 42. A. love
B. reason B. rubbish B. become B. control B. funny B. lack
C. project C. debt C. observe C. replace C. cheap
D. problem D. products D. change D. withdraw D. Regardless of D. powerful D. division
B. No, not much
C That's grent
D. Don’t worry
40. A. Thanks to B. As to C. Except for C. prevention
43. A. sensitive B. kind 44. A. ways 45. A. donate
B. places B. receive B. returns B. stronger B. purposes B. record B. Otherwise
C. brave C. jobs C. produce C. responds C. higher C. hold onto C. functions C. decrease C. Therefore C. after C. repairing
D. busy D. friends D. preserve D. contributes D. larger D. throw away D. consequences D. measure D. brands D. Meanwhile D. instead of D. advertising
46. A. adapts 48. A. newer 50. A. advantages 51. A. show
52. A. technology 53. A. However 54. A. by
47. A. tired of B. addicted to 49. A. pick up B. pay for
C. worried about D. ashamed for
B. environment C. consumers B. in favour of
55. A. spending B. collecting
第三部分阅 读理解(共20小题;每小题2分,满分40分)
阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答 题卡上将该项涂黑。
A
Welcome to the Electronic Village to explore new ways of language teaching and learning.
A. offer grammar tests C. help vocabulary learning A. Room 501 A. Nearpod. A. 9:00 am
B. teach listening on-line D. gain fluency in speaking C. Room 601 C. TEO. B
When her five daughters were young, Helene An always told them that there was strength in unity (团结). To show this, she held up one chopstick, representing one person. Then she easily broke it into two pieces. Next, she tied several chopsticks together, representing a family. She showed the girls it was hard to break the tied chopsticks. This lesson about family unity stayed with the daughters as they grew up.
Helene An and her family own a large restaurant business in California. However, when Helene and her husband Danny left their home in Vietnam in 1975, they didn't have much money. They moved their family to San Francisco. There they joined Danny's mother, Diana, who owned a small Italian sandwich shop. Soon afterwards, Helene and Diana changed the sandwich shop into a small Vietnamese restaurant. The five daughters helped in the restaurant when they were young. However, Helene did not want her daughters to always work in the family business because she thought it was too hard.
Eventually the girls all graduated from college and went away to work for themselves, but one by one, the daughters returned to work in the family business. They opened new restaurants in San Francisco and Los Angeles. Even though family members sometimes disagreed with each other, they worked together to make the business successful. Daughter Elisabeth explains, "Our mother taught us that to succeed we must have unity, and to have unity we must have peace. Without the strength of the family, there is no business."
Their expanding business became a large corporation in 1996, with three generations of Ans working together. Now the Ans' corporation makes more than $20 million each year. Although they began with a small restaurant, they had big dreams, and they worked together. Now they are a big success. 60. Helene tied several chopsticks together to show ______. A. the strength of family unity C. the advantage of chopsticks A. started a business in 1975
B. the difficulty of growing up D. the best way of giving a lesson B. left Vietnam without much money
D. Room 602
D. Prezi. D. 3:30 pm
57. If you want to improve your speaking skills, you can go to____________.
B. Room 502 B. Kahoot.
58. Which of the following can assess your grammar learning?
59. A teacher who wants to learn on-line teaching is expected to arrive by ______.
B. 10:30 am
C. 2:00 pm
61. We can learn from Paragraph 2 that the An family ______. C. bought a restaurant in San Francisco 62. What can we infer about the An daughters? A. They did not finish their college education. B. They could not bear to work in the family business.
D. opened a sandwich shop in Los Angeles
C. They were influenced by what Helene taught them.
D. They were troubled by disagreement among family members. 63. Which of the following can be the best title for the passage? A. How to Run a Corporation C. How to Achieve a Big Dream
C
As Internet users become more dependent on the Internet to store information, are people remember less? If you know your computer will save information, why store it in your own personal memory, your brain? Experts are wondering if the Internet is changing what we remember and how.
In a recent study, Professor Betsy Sparrow conducted some experiments. She and her research team wanted to know the Internet is changing memory. In the first experiment, they gave people 40 unimportant facts to type into a computer. The first group of people understood that the computer would save the information. The second group understood that the computer would not save it. Later, the second group remembered the information better. People in the first group knew they could find the information again, so they did not try to remember it.
In another experiment, the researchers gave people facts to remember, and told them where to find the information on the Internet. The information was in a specific computer folder (文件夹). Surprisingly, people later remember the folder location (位置) better than the facts. When people use the Internet, they do not remember the information. Rather, they remember how to find it. This is called "transactive memory (交互记忆)"
According to Sparrow, we are not becoming people with poor memories as a result of the Internet. Instead, computer users are developing stronger transactive memories; that is, people are learning how to organize huge quantities of information so that they are able to access it at a later date. This doesn't mean we are becoming either more or less intelligent, but there is no doubt that the way we use memory is changing. 64. The passage begins with two questions to ______. A. introduce the main topic
B. show the author's altitude
C. describe how to use the Interne.
D. explain how to store information
B. Strength Comes from Peace D. Family Unity Builds Success
65. What can we learn about the first experiment?
A. The Sparrow's team typed the information into a computer. B. The two groups remembered the information equally well. C. The first group did not try to remember the information. D. The second group did not understand the information. 66. In transactive memory, people ______. A. keep the information in mind
B. change the quantity of information
C. organize information like a computer D. remember how to find the information 67. What is the effect of the Internet according to Sparrow's research? A. We are using memory differently.
B. We are becoming more intelligent. D. We need a better way to access information.
C. We have poorer memories than before.
【第二篇】安徽教育网官网高考
2015安徽高考理科数学答案
【第三篇】安徽教育网官网高考
2015安徽省高考数学理科试题(含官方答案)2财富值
2015年普通高等学校招生全国统一考试(安徽卷)
数学(理科)
本试卷分第I卷(选择题)和第II卷(非选择题)两部分,第I卷第1至第2页,第II卷第3至第4页。全卷满分150分,考试时间120分钟。
考生注意事项:
1. 答题前,务必在试卷、答题卡规定的地方填写自己的姓名、座位号,并认真核对答题卡上所粘贴的条形码中姓名、座位号与本人姓名、座位号是否一致。务必在答题卡背面规定的地方填写姓名和座位号后两位。
2. 答第I卷时,每小题选出答案后,用2B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。
3. 答第II卷时,必须使用0.5毫米的黑色墨水签字笔在答题卡上书写,要求字体工....
整、笔迹清晰。作图题可先用铅笔在答题卡规定的位置绘出,确认后再用0.5毫...
米的黑色墨水签字笔描清楚。必须在题号所指示的答题区域作答,超出答题区域......书写的答案无效,在答题卷、草稿纸上答题无效。 .....................
4. 考试结束,务必将试卷和答题卡一并上交。
参考公式:
第Ⅰ卷(选择题 共50分)
一、选择题:本大题共10个小题;每小题5分,共50分.在每小题给出的四个选项中,有且只有一项是符合题目要求的。
(1)设i是虚数单位,则复数2i在复平面内所对应的点位于 1-i
(A)第一象限 (B)第二象限(C)第三象限(D)第四象限安徽教育网官网高考
(2)下列函数中,既是偶函数又存在零点的是
(A)y=cosx (B)y=sinx (C)y=lnx (D)y=x+1
(3)设 ,则p是q成立的
(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
4、下列双曲线中,焦点在y轴上且渐近线方程为y=±2x的是( ) 2
y2x2y2
2=1 (B)-y=1 (C)-x2=1 (A)x-4442
x2
=1 (D)y-42
5、已知m,n是两条不同直线,α,β是两个不同平面,则下列命题正确的是( )
(A)若α,β垂直于同一平面,则α与β平行
(B)若m,n平行于同一平面,则m与n平行
(C)若α,β不平行,则在α内不存在与β平行的直线
(D)若m,n不平行,则m与n不可能垂直于同一平面
6、若样本数据x1,x2,···,x10的标准差为8,则数据2×1-1,2×2-1,···,2×10-1的标准差为( )
(A)8 (B)15 (C)16 (D)32
7、一个四面体的三视图如图所示,则该四面体的表面积是( )
(A
)1 (B
)2+(C
)1+ (D
)8、ABC是边长为2的等边三角形,已知向量a,b满足AB=2a,
AC=2a+b,则下列结论正确的是( )
(A)b=1 (B)a⊥b (C)a·b=1 (D)4a-b⊥BC
9、函数f(x)=()ax+b
(x+c)2的图象如图所示,则下列结论成立的是( )
(A)a>0,b>0,c<0 (B)a<0,b>0,c>0
(C)a<0,b>0,c<0 (D)a<0,b<0,c<0
10、已知函数f(x)=Asin(ωx+φ)(A,ω,φ均为正的常数)的最小正
周期为π,当x=2π时,函数f(x)取得最小值,则下列结论正确的是( ) 3
(A)f(2)<f(-2)<f(0) (B)f(0)<f(2)<f(-2)
(C)f(-2)<f(0)<f(2) (D)f(2)<f(0)<
f(-
2)
第二卷
二.填空题 11.(x+317)的展开式中x3的系数是(用数字填写答案) x
12.在极坐标中,圆ρ=8sinθ上的点到直线θ=π
3(ρ∈R)距离的最大值是
13.执行如图所示的程序框图(算法流程图),输出的a为
14.已知数列{an}是递增的等比数列,a2+a4=9,a2a3=8,则数列{an}的前n项和等于
15. 设x+ax+b=0,其中a,b均为实数,下列条件中,使得该三次方程仅有一个实根的是 (写出所有正确条件的编号) 3
(1)a=-3,b=-3;(2)a=-3,b=2;(3)a=-3,b>2;(4)a=0,b=2;(5)a=1,b=2.
三.解答题
16.在
ABC中,A=π
4,AB=6,AC=,点D在BC边上,AD=BD,求AD的长。
17.已知2件次品和3件正品放在一起,现需要通过检测将其区分,每次随机检测一件产品,检测后不放回,直到检测出2件次品或者检测出3件正品时检测结果.
(1)求第一次检测出的是次品且第二次检测出的是正品的概率
(2)已知每检测一件产品需要费用100元,设X表示直到检测出2件次品或者检测出3件正品时所需要的检测费用(单位:元),求X的分布列和均值(数学期望)
(18)(本小题12分)
设n∈N,xn是曲线y=x*2n+32)处的切线与x轴交点的横坐标, +1在点(1,
(1)求数列{xn}的通项公式;
(2)记Tn=x1x2
222T≥x2n-1,证明n1. 4n
E19.如图所示,在多面体A四边形AA1B1D1DCBA,1B1B,ADD1A1,ABCD均为正方形,
为B1D1的中点,过A1,D,E的平面交CD1于F
(1)证明:EF//B1C1
(2)求二面角E-A1D-B1余弦值
.
(20)(本小题13分)
x2y2
设椭圆E的方程为2+2=1(a>b>0),点O为坐标原点,点A的坐标为(a,0),点Bab
的坐标为(0,b),点M在线段AB上,满足BM=2MA,直线OM
(I)求E的离心率e;
(II)设点C的坐标为(0,-b),N为线段AC的中点,点N关于直线AB的对称点的纵坐标为
7,求E的方程. 2
21.设函数f(x)=x2-ax+b.
ππ(1)讨论函数f(sinx)在(-)内的单调性并判断有无极值,有极值时求出极值; 22
ππ2(2)记f0(x)=x-a0x+b0,求函数f(sinx)-f0(sinx)在(-)上的最大值D; 22
a(3)在(2)中,取a0=b0=0,求z=b-2满足D≤1时的最大值。 4
【第四篇】安徽教育网官网高考
2015年安徽高考英语试题及答案
2015年普通高等学校招生全国统一考试(安徽卷)
英 语
本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。全卷满分150分,考试时间120分钟。考生注意事项:
1.答题前,务必在试题卷、答题卡规定的地方填写自己的姓名、座位号,并认真核对答题卡上所粘贴的条形码中姓名、座位号与本人姓名、座位号是否一致。务必在答题卡背面规定的地方填写姓名和座位号后两位。2.答第Ⅰ卷时,每小题选出答案后,用2B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。3.答第Ⅱ卷时,必须使用0.5毫米的黑色墨水签字笔在答题卡上书写,要求字体工整、笔迹清晰。作图题可先用铅笔在答题卡规定的位置绘出,确认后再用0.5毫米的黑色墨水签字笔描清楚。必须在题号所指示的答题区域作答,超出答题区域书写的答案无效,在试题卷、草稿纸上答题无效。...........................4.考试结束,务必将试题卷和答题卡一并上交。第Ⅰ卷 第一部分 听力(共两节,满分30分)
回答听力部分时,请先将答案标在试卷上。听力部分结束前,你将有两分钟的时间将你的答案转涂到客观题答题卡上。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秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。例:How much is the shirt? A.£l9.15. B.£9.15. C.£9.18.答案是C。1. What time is it now?
A. 9:10. B. 9:50. C. 10:00.
2. What does the woman think of the weather?安徽教育网官网高考
A. It's nice. B. It's warm. C. It's cold.
3. What will the man do?
A. Attend a meeting. B. Give a lecture. C. Leave his office.
4. What is the woman's opinion about the course?
A. Too hard. B. Worth taking. C. Very easy.
5. What does the woman want the man to do?
A. Speak louder. B. Apologize to her. C. Turn off the radio.
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。每段对话后有几个小题,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。听每段对话前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题给出5秒钟的作答时间。每段对话读两遍。听第6段材料,回答第6、7题。6. How long did Michael stay in China?
A. Five days. B. One week. C. Two weeks.
7. Where did Michael go last year?
A. Russia. B. Norway. C. India.
听第7段材料,回答第8、9题。
8. What food does Sally like?
A. Chicken B. Fish C. Eggs
9. What air the speakers going to do?
A. Cook dinner. B. Go shopping. C. Order dishes.
听第8段材料,回答第10至12题。10. Where are the speakers?
A. In a hospital. B. In the office. C. At home.
11. When is the report due?
A. Thursday. B. Friday. C. Next Monday.
12. What does George suggest Stephanie do with the report?
A. Improve it. B. Hand it in later. C. Leave it with him.
听第9段材料,回答第13至16题。13. What is the probable relationship between the speakers?
A. Salesperson and customer. B. Homeowner and cleaner. C. Husband and wife.
14. What kind of department do the speakers prefer?
A. One with two bedrooms. B. One without furniture C. One near a market.
15. How much rent should one pay for the one-bedroom apartment?
A. $350. B. $400. C. $415.
16. Where is the apartment the speakers would like to see?
A. On Lake Street. B. On Market Street. C. On South Street,
听第10段材料,回答第17至20题。17. What percentage of the world's tea exports go to Britain?
A. Almost 15%. B. About 30%. C. Over 40%.
18. Why do tea tasters taste tea with milk?
A. Most British people drink tea that way. B. Tea tastes much better with milk.
C. Tea with milk is healthy.
19. Who suggests a price for each tea?
A. Tea tasters. B. Tea exporters. C. Tea companies.
20. What is the speaker talking about?
A. The life of tea tasters. B. Afternoon tea in Britain.
C. The London Tea Trade Centre.
第二部分 英语知识运用(共两节,满分45分)
第一节 单项填空(共15小题;每小题1分,满分15分)
从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。 例: It is generally considered unwise to give a child ______ he or she wants.
A. however B. whatever C. whichever D. whenever
答案是B
21. — Can you come to a party on Saturday, Peter?
— Oh, ______I'm already going out, I'm afraid.
A. what a pity! B. don't ask! C. how come? D. so what?
22. If you come to visit China, you will ______ a culture of amazing depth and variety.
A. develop B. create C. substitute D. experience
23. ______ scientists haw learned a lot about the universe, there is much we still don't know.
A. Once B. Since C. Though D. Unless
24. Just as I got to the school gate, I realised I ______ my bank in the cafe.
A. have left B. had left C would leave D. was leaving
25. A ship in harbor is safe, but that’s not ______ ships aw built for.
A. what B. whom C. why D. when
36. I’m so ______ to all those volunteers because they helped my terrible day end happily.
A. special B. superior C. grateful D. attractive
27. ______ the difference between the two research findings will be one of the worst mistakes you make.
A. Ignore B. Ignoring C. Ignored D. Having ignored
28. Some experts think reading is the fundamental skill upon______ school education depends.
A. it B. that C. whose D. which
29. It is reported that a space station ______ on the moon in years to come.
A. will be building B. will he built C. has been building D. has been built
30. There is no need to tell me your answer now. Give it some ______ and then let me know.
A. thought B. support C. protection D. authority
31. They gave money to the old people's home either ______ or through their companies.
A. legally B. sincerely C. personally D. deliberately
32. It is lucky we booked a room, or we ______nowhere to stay now.
A. had B. had had C. would have D. would have had
33. They believe that there are transport developments ______ that will bring a lot of changes for the better,
A. out of date B. out of order C. around the clock D. around the comer
34. ______ he once felt like giving up, he now has the determination to push further and keep on going.
A. Where B. As C. In case D. Now that
35. — How is your table tennis these days? Still playing?
—______. I just don't seem to find the time these days.
A. That's right B. No, not much C. That's D. Don’t worry
第二节 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(A、B、C、和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
In our modern world, when something wears out, we throw it away and buy a new one. The is that countries around the world have growing mountains of because people are throwing out more rubbish than ever before.
How did we a throwaway society? First of all, it is now easier to an object than to spend time and money to repair it. modern manufacturing (制造业) and technology, companies are able to produce products quickly and inexpensively. Products are plentiful and
Another cause is our of disposable (一次性的) products. As people, we are always looking for to save time and make our lives easier. Companies thousands of different kinds of disposable products: paper plates, plastic cups, and cameras, to name a few.
Our appetite for new products also to the problem. We are buying new things. Advertisements persuade us that is better and that we will be happier with the latest products. The result is that we useful possessions to make room for new ones.
All around the world, we can see the of this throwaway lifestyle. Mountains of rubbish just keep getting bigger. To the amount of rubbish and to protect the , more governments are requiring people to recycle materials. 解决) our problem.
Maybe there is another way out. We need to repair our possessions throwing them away. We also need to rethink our attitudes about the best way to reduce the amount of rubbish and take care of our environment.
36. A. key B. reason C. project D. problem
37. A. gifts B. rubbish C. debt D. products
38. A. face B. become C. observe D. change
39. A. hide B. control C. replace D. withdraw
40. A. Thanks to B. As to C. Except for D. Regardless of
41. A. safe B. funny C. cheap D. powerful
42. A. love B. lack C. prevention D. division
43. A. sensitive B. kind C. brave D. busy
44. A. ways B. places C. jobs D. friends
45. A. donate B. receive C. produce D. preserve
46. A. adapts B. returns C. responds D. contributes
47. A. tired of B. addicted to C. worried about D. ashamed for
48. A. newer B. stronger C. higher D. larger
49. A. pick up B. pay for C. hold onto D. throw away
50. A. advantages B. purposes C. functions D. consequences
51. A. show B. record C. decrease D. measure
52. A. technology B.environment C. consumers D. brands
53. A. However B. Otherwise C. Therefore D. Meanwhile
54. A. by B. in favour of C. after D. instead of
55. A. spending B. collecting C. repairing D. advertising
第三部分阅 读理解(共20小题;每小题2分,满分40分)
阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答
题卡上将该项涂黑。
A
A. offer grammar tests B. teach listening on-line
C. help vocabulary learning D. gain fluency in speaking
57. If you want to improve your speaking skills, you can go to____________.
A. Room 501 B. Room 502 C. Room 601 D. Room 602
58. Which of the following can assess your grammar learning?
A. Nearpod. B. Kahoot. C. TEO. D. Prezi.
59. A teacher who wants to learn on-line teaching is expected to arrive by ______.
A. 9:00 am B. 10:30 am C. 2:00 pm D. 3:30 pm
B
When her five daughters were young, Helene An always told them that there was strength in unity (团结). To show this, she held up one chopstick, representing one person. Then she easily broke it into two pieces. Next, she tied several chopsticks together, representing a family. She showed the girls it was hard to break the tied chopsticks. This lesson about family unity stayed with the daughters as they grew up.安徽教育网官网高考
Helene An and her family own a large restaurant business in California. However, when Helene and her husband Danny left their home in Vietnam in 1975, they didn't have much money. They moved their family to San Francisco. There they joined Danny's mother, Diana, who owned a small Italian sandwich shop. Soon afterwards, Helene and Diana changed the sandwich shop into a small Vietnamese restaurant. The five daughters helped in the restaurant when they were young. However, Helene did not want her daughters to always work in the family business because she thought it was too hard.
Eventually the girls all graduated from college and went away to work for themselves, but one by one, the daughters returned to work in the family business. They opened new restaurants in San Francisco and Los Angeles. Even though family members sometimes disagreed with each other, they worked together to make the business successful. Daughter Elisabeth explains, "Our mother taught us that to succeed we must have unity, and to have unity we must have peace. Without the strength of the family, there is no business."
Their expanding business became a large corporation in 1996, with three generations of Ans working together. Now the Ans' corporation makes more than $20 million each year. Although they began with a small restaurant, they had big dreams, and they worked together. Now they are a big success.
60. Helene tied several chopsticks together to show ______.
A. the strength of family unity B. the difficulty of growing up
C. the advantage of chopsticks D. the best way of giving a lesson
61. We can I earn from Paragraph 2 that the An family ______.
A. started a business in 1975 B. left Vietnam without much money
C. bought a restaurant in San Francisco D. opened a sandwich shop in Los Angeles
62. What can we infer about the An daughters?
A. They did not finish their college education.
B. They could not bear to work in the family business.
C. They were influenced by what Helene taught them.
D. They were troubled by disagreement among family members.
63. Which of the following can be the best title for the passage?
A. How to Run a Corporation B. Strength Comes from Peace
C. How to Achieve a Big Dream D. Family Unity Builds Success
C
As Internet users become more dependent on the Internet to store information, are people remember less? If you know your computer will save information, why store it in your own personal memory, your brain? Experts are wondering if the Internet is changing what we remember and how.
In a recent study, Professor Betsy Sparrow conducted some experiments. She and her research team wanted to know the Internet is changing memory. In the first experiment, they gave people 40 unimportant facts to type into a computer. The first group of people understood that the computer would save the information. The second group understood that the computer would not save it. Later, the second group remembered the information better. People in the first group knew they could find the information again, so they did not try to remember it.
In another experiment, the researchers gave people facts to remember, and told them where to find the information on the Internet. The information was in a specific computer folder (文件夹). Surprisingly, people later remember the folder location (位置) better than the facts. When people use the Internet, they do not remember the information. Rather, they remember how to find it. This is called "transactive memory (交互记忆)"
According to Sparrow, we are not becoming people with poor memories as a result of the Internet.
【第五篇】安徽教育网官网高考
2015安徽高考数学卷
2015
一.选择题
1. 设i为虚数单位,则复数安徽高考数学卷(理) 2i在复平面对应的点位于 1-i
A. 第一象限 B.第二象限 C.第三象限 D.第四象限
2. 下列函数中,既是偶函数又存在零点的是
2A. y=cosx B.y=sinx C.y=lnx D.y=x
x3.设p:1<x<2,q:2 >1,则p是q成立的
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
4.下列双曲线中,焦点在y轴上且渐近线方程为y=±2x的是 y2x2y2x2
222=1 B.-y=1 C.-x=1 D.y-=1 A.x-44442
5.已知m、n是两条不同直线,α、β是两个不同平面,则下列命题正确的是
A.若α、β垂直于同一平面,则α与β平行
B.若m、n平行于同一平面,则m与n平行
C.若α,β不平行,则在α内不存在与β平行的直线
D.若m、n不平行,则m与n不可能垂直于同一平面
6.若样本数据x1,x2,…,x10的标准差为8,则数据2×1-1,2×2-1, …,2×10-1的标准差为
A.8B.15C.16D.32
7.一个四面体的三视图如图所示,则该四面体的表面积是
A.1
2+
1+
8. △ABC是边长为2的等边三角形,已知向量 a、b满足AB=2a,AC=2a+b,则下列结论正确的是
A.|b|=1 (B)a⊥b
(C)a·b=1 D.(4a+2b)⊥BC
9.函数f(x)=ax+b的图像如图所示,则下列结论成立的是 (x+c)2A.a>0,b>0,c<0 B.a<0,b>0,c>0
C.a<0,b>0,c<0 D.a<0,b<0,c<0 第(9)题图
10.已知函数f(x)=Asin(ωx+φ) (A,ω,φ ) 均为正的常数)的最小正周期为π,当x=2π时,函数f(x)取得最小值,则下列结论正确的是 3
A. f(2)<f(-2)<f(0) B.f(0)<f(2)<f(-2)
C.f(-2)<f(0)<f(2) D.f(2)<f(0)<f(-
2)
二.填空题 11.(x+317)的展开式中x5 的系数是 .(用数字填写答案) x
上的点到直线θ=12.在极坐标系中,圆ρ=8sinθπ(ρ∈R)距离的最大值3
是 .
13.执行如图所示的程序框图(算法流程图),输出的n,为 .
14.已知数列{an}是递增的等比数列,a1+a4=9,
a2a2=8,则数列{an}的前n项和等于 .
315.设x+ax+b=0,其中a、b均为实数,下列条件
中,使得该三次方程仅有一个实根的
是 (写出所有正确条件的编号)
① a=-3,b-3;②a=-3,b=2;③a-3,b>2;
④ a=0,b=2;⑤a=1,b=2.
三.解答题
16.在△ABC中,∠A=3π,AB=6,
4
AC=D在BC边上,AD=BD,求AD的长.
17.已知2件次品和3件正品混放在一起,现需要通过检验将其区分,每次随机检验一件产品,检测后不放回,直到检测出2件次品或检测出三件正品时检测结束.
(Ⅰ)求第一次检测出的是次品且第二次检测出的是正品的概率;
( Ⅱ)已知每检测一件产品需要费用100元,设X表示直到检测出2件次品或检测出3件正品时所需要的检测费用(单位:元),求X的分布列和均值(数学期望).
18.设n∈N,xn是曲线y=x+1在点(1,2)处的切线与x轴交点的横坐标.
(Ⅰ)求数列{an}的通项公式; *2n+2
22( Ⅱ)记Tn=x1x22T≥x2n-1,证明n1. 4n
E19.如图所示,在多面体A四边形AA1B1D1DCBA,1B1B,ADD1A1,ABCD均为正方形,
为B1D1的中点,过A1,D,E的平面交CD1于F
(Ⅰ)证明:EF//B1C
(Ⅱ)求二面角E-A1D-B1余弦值.
x2y2
20.设椭圆E的方程为2+2=1(a>b>0),点O为坐标原点,点A的坐标为(a,0),点ab
B的坐标为(0,b),点M在线段AB上,满足BM=2MA,直线OM
的斜率为(I)求E的离心率e;
(II)设点C的坐标为(0,-b),N为线段AC的中点,点N关于直线AB的对称点的纵坐标为
. 107,求E的方程. 2
21.设函数f(x)=x2-ax+b. ππ(Ⅰ)讨论函数f(sinx)在(-)内的单调性并判断有无极值,有极值时求出极值; 22
ππ2(Ⅱ)记f0(x)=x-a0x+b0,求函数f(sinx)-f0(sinx)在[-,]上的最大值D; 22
a2
(Ⅲ)在(Ⅱ)中,取a0=b0=0,求z=b-满足D≤1时的最大值. 4
【第六篇】安徽教育网官网高考
2015年安徽省高考数学试卷(理科)附详细解析
2015年安徽省高考数学试卷(理科)
一.选择题(每小题5分,共50分,在每小题给出的四个选项中,只有一个是正确的) 1.(5分)(2015o安徽)设i是虚数单位,则复数安徽教育网官网高考
在复平面内对应的点位于( )
5.(5分)(2015o安徽)已知m,n是两条不同直线,α,β是两个不同平面,则下列命题正
6.(5分)(2015o安徽)若样本数据x1,x2,…,x10的标准差为8,则数据2×1﹣1,2×2﹣1,…,7.(5分)(2015o安徽)一个四面体的三视图如图所示,则该四面体的表面积是( )
x
8.(5分)(2015o安徽)△ABC是边长为2的等边三角形,已知向量,满足9.(5分)(2015o安徽)函数f(x)=
=2,=2+,
的图象如图所示,则下列结论成立的是( )
10.(5分)(2015o安徽)已知函数f(x)=Asin(ωx+φ)(A,ω,φ均为正的常数)的最小正周期为π,当x=
时,函数f(x)取得最小值,则下列结论正确的是( )
二.填空题(每小题5分,共25分)
11.(5分)(2015o安徽)(x+)的展开式中的x的系数是 (用数字填写答案)
12.(5分)(2015o安徽)在极坐标系中,圆ρ=8sinθ上的点到直线θ=
(ρ∈R)距离的最
375
大值是 . 13.(5分)(2015o安徽)执行如图所示的程序框图(算法流程图),输出的n为
14.(5分)(2015o安徽)已知数列{an}是递增的等比数列,a1+a4=9,a2a3=8,则数列{an}的前n项和等于 .
15.(5分)(2015o安徽)设x+ax+b=0,其中a,b均为实数,下列条件中,使得该三次方程仅有一个实根的是 (写出所有正确条件的编号) ①a=﹣3,b=﹣3.②a=﹣3,b=2.③a=﹣3,b>2.④a=0,b=2.⑤a=1,b=2.
三.解答题(共6小题,75分)
16.(12分)(2015o安徽)在△ABC中,∠A=
,AB=6,AC=3
,点D在BC边上,AD=BD,
3
求AD的长. 17.(12分)(2015o安徽)已知2件次品和3件正品混放在一起,现需要通过检测将其区分,每次随机一件产品,检测后不放回,直到检测出2件次品或者检测出3件正品时检测结束. (Ⅰ)求第一次检测出的是次品且第二次检测出的是正品的概率; (Ⅱ)已知每检测一件产品需要费用100元,设X表示直到检测出2件次品或者检测出3件正品时所需要的检测费用(单位:元),求X的分布列和均值(数学期望)
18.(12分)(2015o安徽)设n∈N,xn是曲线y=x的横坐标 (Ⅰ)求数列{xn}的通项公式; (Ⅱ)记Tn=x1x3…x2n﹣1,证明:Tn≥
19.(13分)(2015o安徽)如图所示,在多面体A1B1D1DCBA中,四边形AA1B1B,ADD1A1,ABCD均为正方形,E为B1D1的中点,过A1,D,E的平面交CD1于F. (Ⅰ)证明:EF∥B1C; (Ⅱ)求二面角E﹣A1D﹣B1的余弦值.
2
2
2
*
2n+2
+1在点(1,2)处的切线与x轴交点
.
20.(13分)(2015o安徽)设椭圆E的方程为
+
=1(a>b>0),点O为坐标原点,点
A的坐标为(a,0),点B的坐标为(0,b),点M在线段AB上,满足|BM|=2|MA|,直线OM的斜率为
(Ⅰ)求E的离心率e; (Ⅱ)设点C的坐标为(0,﹣b),N为线段AC的中点,点N关于直线AB的对称点的纵坐标为,求E的方程.
21.(13分)(2015o安徽)设函数f(x)=x﹣ax+b. (Ⅰ)讨论函数f(sinx)在(﹣
2
2
,)内的单调性并判断有无极值,有极值时求出最值;
,
]上的最大值D;
(Ⅱ)记f0(x)=x﹣a0x+b0,求函数|f(sinx)﹣f0(sinx)|在[﹣(Ⅲ)在(Ⅱ)中,取a0=b0=0,求z=b﹣
满足条件D≤1时的最大值.
2015年安徽省高考数学试卷(理科)
参考答案与试题解析
一.选择题(每小题5分,共50分,在每小题给出的四个选项中,只有一个是正确的) 1.(5分)(2015o安徽)设i是虚数单位,则复数在复平面内对应的点位于( )
x