当前位置:文档之家› 河北邢台市一中2015-2016学年高二上学期第三次月考(期中)考试英语试卷

河北邢台市一中2015-2016学年高二上学期第三次月考(期中)考试英语试卷

河北邢台市一中2015-2016学年高二上学期第三次月考(期中)考试英语试卷
河北邢台市一中2015-2016学年高二上学期第三次月考(期中)考试英语试卷

邢台一中2015—2016学年上学期第三次月考

高二年级英语试题

命题人李建平

第I卷(共90 分)

第一部分听力(共两节,满分20 分)

第一节(共5小题(每小题1 5分,满分7. 5分)

听下面5段对话。每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。

1 What does the woman mean?

A They don’t have to go to the concert.

B The man’s brother will let them use the car.

C Going by bus is fine for them.

2 What do we know about the match?

A. It can’t be much fun.

B. It must be exciting.

C. It may be put off.

3 What is wrong with the printer?

A I t’s out of fashion. B. It’s broken. C. It has run out of ink.

4 What is the woman probably interested in?

A Sports. B. Fashion. C. Politics.

5 What are the speakers mainly talking about?

A New dictionaries. B. A professor. C. The development of languages.

第二节(共15小题;每小题!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 Where does this conversation probably take place?

A At a hotel.

B . In a post office. C. I n a travel office.

7 What is the man doing?

A Consulting about a tour.

B . Looking for a job. C. Trying to find a book.

听第7段材料,回答第8、9题。

8 What is the woman?

A. librarian.

B. A doctor.

C. A teacher.

9 What is the woman’s suggestion?

A. Buying some new computers.

B. Borrowing some magazines .

C. Asking some experts for advice.

听第8段材料,回答第10至12题。

10 What is the probable relationship between the speakers?

A . Teacher and student .

B . Doctor and patient . C. Husband and wife.

11 Who are Anne and Dick?

A. The speakers’ children .

B. The speakers’ friends.

C. The speakers’ customers .

12 What will the speakers buy for Dick?

A. Some records. B . A toy. C. A space suit.

听第9段材料,回答第13至16题。

13 What will the woman do in summer holidays?

A . Study English at home.

B . Go boating on the Nile. C. Visit the Aswan Dam.

14 Where does the man’s sister work?

A. On the plane. B . At a school. C. At a travel agency.

15 Why did the woman want to leave?

A. She was feeling sorry for the man’s sister.

B. She may be hurt by the man’s pride .

C. She was interested in the man’s travel plan .

16 What do we know about the woman?

A. Her parents are strict with her.

B. Her oral English is poor .

C.She knows nothing about Egypt.

听第10段材料,回答第17至20题。

17 Whom is the speaker speaking to?

A. Students. B . Teachers . C. Reporters .

18 How often does The Voice come out?

A. Every other day. B . Every day. C . Five days a week.

19 What’s the best reason for taking the job according to the speaker?

A. To learn to type. B . To enjoy oneself. C . To make some money.

20 When are volunteers expected to start working?

A. Immediately. B . Tomorrow. C . Next week.

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(A,B,C和D)中,选出最佳选项。

A

A sick little gift is being kept alive thanks to her best friend--a dog who carries her oxygen tank on his back. Alida’s faithful dog companion Mr. Gibbs has been specially trained to shepherd the three-year-old, who breathes through a tube most of the time. He follows her closely as she plays in her family’s ten-acre land in Louisville, uses the slide or even rides her bike.

Alida was diagnosed(诊断)with neuroendocrine hyperplasia of infancy(NEHI神经内分泌增生)when she was just eight months old. Her rare condition has just eight hundred documented sufferers throughout the world, and causes diseased pieces of the lungs to filter (过滤)oxygen through extra layers(膜)of cells making it hard or almost impossible to breathe.

For Alida and her parents, it meant that even a walk in the park was very difficult because oxygen equipment was too heavy for the youngster to be able to carry herself. As parents they wanted to do something to help their daughter survive despite having a tube following her all the time. The couple found out about “service dogs” from a TV program and realized an animal trained to help the blind could be trained to help Alida. They finally found help in the shape of golden doodle—a retriever(寻回犬)crossed with a poodle-dog Mr.

Gibbs. Now--thanks to trainer Ashleigh Kinsley—Alida and Mr. Gibbs love nothing more than playing and running around together with the dog acting as Alida’s life saver.

21. What is Mr. Gibbs?

A. A trained dog.

B. A policeman.

C. A doctor.

D. A firefighter.

22. When did the doctor know Alicia caught the disease?

A. At her birth.

B. At the age of eight.

C. Before she was one year old.

D. When she was three years old.

23. The underlined part “the couple” in paragraph 3 refers to ________.

A. Alida’s classmates

B. Alida’s parents

C. Alida’s doctors

D. Alida’s pets

24. How did Alicia keep alive?

A. By training her dog.

B. By staying with her parents.

C. By playing with her fellows.

D. By breathing through a tube.

B.

It has been two years since I published my first article on Y ahoo Contributor Network.I was very excited when I saw that what I had written was published on the Internet.

I recognized that the content sites such as Associated Content can provide a fertile ground for learning how to become a writer.I was thrifty(节俭的)—I could see that this was an open door for systematically(系统地)learning some basic writing skills without paying college tuition for classes,all to be finished at my own speed and without leaving the comfort of my own home.

During these past few years I gained enough experience and understanding of using Associated Content to try writing.I found writing for that site was not my cup of tea. However, my experience there was positive as I was rewarded with even more learning opportunities just by giving it a try. Through Associated Content I was introduced to the world of blogs(博客). I decided to learn how to set up a blog myself.Now I’m interested in blogs and continue to work as a writer.

Writing for the content site Yahoo Contributor Network gives me a chance of trying creative writing—news,reviews and numerous lifestyle issues. And all of these topics are my own choices.Then there is an opportunity to meet other writers.Yahoo Contributor Network has a wonderful in-house messaging system that allows its writers to communicate easily with one another. Not all your tries are satisfactory and easy when you write for a content site,but the benefits are many if you try it.

My teacher once said,“If you don’t quit,you will win.” I have no desire to quit writing as I really enjoy it. My thanks go out to Associated content and yahoo Contributor Network for all my progress in writing! And to my fellow writers—thank you so much for your support and friendship.May we continue in our efforts of inspiration for many years to come!

25.According to the author,_______.

A .people can read a lot of novels on Associated Content

B.Associated Content helps readers study writing regularly

C.Associated Content contributes to making one become a writer.

D.studying on Associated Content is rather expensive but convenient.

26.In the author’s eyes,wri ting for Associated Content was not______.

A.a job he can deal with

B.his favorite thing

C.a difficult task for him

D.meaningful work for him

27.The author uses his teacher’s words to show that____.

A.he will stick to his writing career

B.his teacher gave him a lot of help

C.what his teacher said is really true

D.he has met much difficulty in writing

28.We can learn from the passage that____.

A.two years has passed since the author began writing

B.the author is grateful for the sites and his fellow writers

C.the author had his first book published on the Internet

D.the author thinks writing on the Internet is very easy

C.

Journey to America

By Hemang Dave

Price: $0.99 USD. Words: 16.400. Language: English. Published: August 8, 2014.

I, Hemang Dave went to America for a vacation, but it turned into an extraordinary quest. I met an orphan looking for his parents. I thought, I will help him find his parents. He agreed and we begun our adventure. What an adventure! I am proud to share my adventures with you. Have fun reading..

Noah’s Ark: Encounters

By Harry Dayle

Price: $3.99 USD. Words: 75,430 . Language: British English. Published: August 7, 2014.

Two months after the world ended, is there finally some hope for the three thousand survivors aboard cruise ship spirit of Arcadia? A strange signal on the radar suggests more survivors. It might even explain the mysterious finds the cruise ship has made on her journey south. Or could it be something altogether more sinister ? Encounters is the third novel in the thrilling Noah’s Ark series.

Heal your Mind

By Gerald N. Ogonyo

Price: $ 3.99 USD . Words :22,420. Language: English. Published: August 7, 2014.

This book has been written to guide you to achieve success, mentally, physically, emotionally and spiritually. The author was inspired to write this book after his own life was changed by the key points discussed in the book. Read , enjoy and hopefully it will change your life for the better too.

My Childhood Christmas

By Rootie Simms

Price: $4.95 USD. Words: 47,700. Language: English. Published: July 27, 2014

Santa pins, cigarette-smoking toys, school plays, bus stop battles and sledding wars---this is the Christmas of 1959! A hysterical Christmas, a sled ride back to the place where your fondest memories still live. Welcome to My Childhood Christmas!

29.The author of Journey to America impresses us as being__________.

A . brave and intelligent B. honest and easy-going

C. wealthy and generous

D. helpful and warm-hearted

30. What’s the authors purpose in writing My Childhood Christmas?

A. To share happy childhood memories.

B. To recall the hard days in the 1950s

C. To discourage us from cigarette-smoking.

D. To tell about the social problems of the 1950s.

31. If you aim for career success, you’d better read the book by_______.

A. Hemang Dave

B. Harry Dayle

C. Gerald N. Ogonyo

D. Rootie Simms

D

When should people be made to retire? 55? 65? Should there be a compulsory age limit?

Many old people work well into their 70s and 80s, running families, countries or corporations. Other people, however, despite being fit and highly talented, are forced to retire in their fifties or even earlier because of the regulations of a company or the nation. This essay will examine whether people should be allowed to continue working as long as they want or whether they should be encouraged to retire at a particular stage.

Some people think there are several arguments for allowing older people to continue working as long as they are able. First of all, older employees have an immense amount of knowledge and experience which can be lost to a business or organization if they are made to retire. A second point is that older employees are often extremely loyal employees and are more willing to carry out company policies than younger less committed staff. However, a more important point is regarding the attitudes in society to old people. To force someone to resign or retire at 60 indicates that the society does not value the input of these people and that effectively their useful life is over. Age is irrelevant to a working life, surely if older employees are told they cannot work after 60, this is age discrimination. That they become old does not necessarily mean they are going to be sick. Old people could be more aware, experienced and committed than some youngsters.

Others, however, think that allowing older people to work indefinitely(无限期地)is not a good policy. Age alone is no guarantee of ability. Old people are only ambitious workaholics who are too selfish and self-centered to believe that a younger person could do better. Actually, many younger employees have more experience or skills than older staff, who may have been stuck in one area or unit for most of their working lives. Having compulsory retirement allows new ideas in an organization. In addition, without age limits, however, many people would continue to work purely because they did not have any other plans or roles. A third point of view is that older people should be rewarded by society for their life’s labor by being given generous pensions and the freedom to enjoy their leisure. We now have youngsters who can’t find job s because old people are choosing not to retire. Old people are not retiring because this new generation of “old people” , thinking they will never die due to modern advances in medicine.

With many young people unemployed or frustrated in low-level positions, there are often calls to compulsorily retire older workers. However, this can affect the older individual’s freedom and right to work and can deprive(剥夺) society of valuable experience and insights.

I feel that giving workers more flexibility and choice over their retirement age will benefit society and the individual.

32.What is the purpose of this passage?

A. To explain the compulsory age limit.

B. To discuss the retirement age.

C. To examine people’s working life.

D. To introduce a particular stage.

33.Which of the following is NOT a reason for allowing old people to continue working

according to the passage?

A. Their contribution should be valued.

B. Their experience should be made use of.

C. They can help the youngsters.

D. They are loyal employees.

34.It can be inferred in the fourth passage that ______.

A. The young people have more creative spirits

B. Modern advances in medicine make old people never die

C. Pensions and freedom are not given to the old now

D. Old people believe that a younger person could do better

35.The passage is arranged as follows:

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。选项中的两项为多余选项。

36 . There are two pens which can write this book. One is writing growth, the other is writing caducity (衰老). One is describing success, the other is presenting failure. In others words, one is drawing happiness and the other is showing sorrow as well.

Life is like a heavy truck, so happiness and sorrow are like the wheels. No cross, no crown. No pain, no joy. 37 . One is that to live a day is to leave a day. The other is that to live a day is to enjoy a day. Just one word difference, it has reflected the complete reverse (相反的state of psychology. Life is like the course which is investing(投资)all the time.

38 .

When you have it, you should use it well and make it develop great actions. Please remember, the active attitude creates wonderful life, or the negative attitude waste lifetime.

39 . When she was about to knock at the door, she heard someone speaking in the room. A little girl said," Would you like some braised (炖熟的)pork today?" Another girl said, "No. I would like some toasted chicken." Following the words, the lady knocked at the door and went into the room. 40 . To her surprise, there were only some pieces of thin and dry bread, two cold potatoes and a jar of water on the table. The lady asked them what was the matter . They said that they imagined that, so poor food was turned into many kinds of delicious food.

When the lady left the family, she had newly understanding of happiness.

A. She saw them sitting at a table.

B. Everybody wishes to live a happy life.

C. There are two different minds.

D. Life is like a book.

E. One day , a rich lady went to visit a poor, but happy family.

F. Happy life exists everywhere.

G. Therefore, for one sense, life is the capital(资本).

第三部分英语知识运用(共三节,满分55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,掌握其大意,然后从41—60各题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。

One morning all the employees reached the office as usual. And on the wall they saw a big 41 on which it was written: Yesterday, the person who has been 42 your growth in this company passed 43 . We invite you to join the funeral prepared in the 44 .

In the beginning,they all got 45 for the death of one of their colleagues. 46 after a while they started getting 47 to know who was the man that limited the growth of his colleagues and the company itself.

The 48 in the gym was such that security agents(保安)were 49 to control the crowd within the room. The more people reached the coffin, the more the excitement 50 up. Everyone whispered to each other: “ 51 on earth is this guy?”

One by one the excited employees got closer to the coffin, and when they 52 inside it, they 53 became speechless. They stood nearby the coffin, shocked and in 54 , as if someone had 55 the deepest part of their soul.

There was a 56 inside the coffin;everyone who looked inside it could see himself, There was also a sign next to the mirror that 57 : there is only one person who is 58 to set limits to your growth:IT IS 59 !!!!!! Your life doesn’t change when everyone around you changes. Your life changes when YOU change,when you go beyond your limiting beliefs inside. Don’t be afraid of 60 ;build yourself and your reality. It’s the way you face life itself that makes the difference!

41. A. post B. card C. 1etter D. sign

42. A. encouraging B. limiting C. building D. helping

43. A. on B. away C. by D. down

44. A. gym B. office C. way D. meeting room

45. A. afraid B. excited C. sad D. calm

46. A. And B. Or C. But D. So

47. A. curious B. pleased C. ready D. serious

48. A. surprise B. anger C. sadness D. excitement

49. A. admitted B. ordered C. forbidden D. forced

50. A. kept B. woke C. turned D. heated

51. A. Who B. What C. How D. Where

52. A. walked B. got C. looked D. turned

53. A. suddenly B. gradually C. merely D. extremely

54. A. sorrow B. order C. person D. silence

55. A. attacked B. stolen C. touched D. seen

56. A. 1etter B. mirror C. book D. colleague

57. A. read B. wrote C. showed D. reflected

58. A. sure B. eager C. able D. afraid

59. A. ME B. YOU C. HE D. ITSELF

60. A. punishment B. praises C. blame D. changes

第II卷(60分)

第三部分英语知识运用(共三节,满分55分)

第二节语法填空(共10小题;每小题1.5分,满分15分)

阅读下面材料,在空白处填入适当的内容(1个单词)或括号内单词的正确形式。

History has left bad 61________( memory) and deep regrets for untold families on both sides of the Taiwan Strait. 62_______ the Strait cannot prevent relatives and friends 63________(miss) each other. If there possibly were one more choice, we do believe people from the two sides 64________(try) our best to shorten the time for the handshake here today.

In the last seven years, the two sides across the Straits 65________(make)much progress in 66_____development of cross-Strait relations, and these are all due to the hard work of the people from both sides. It`s because of the work that has been done over these last seven years 67______ we are able to take this historic step today. It`s necessary that we 68___________(express) our sincere gratitude to all those 69 ________ have made efforts to push forward cross-Strait relations and it`s also high time that we did our best to strengthen and promote the interflow of both sides.

We should learn and reflect from the history of the cross-Strait relations. We must be 70 __________( responsibility) for the history and make wiser decisions that will stand the test of time.

第四部分写作(共两节,满分35分)

第一节短文改错(共10小题;每小题1分,满分10分)

假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误,每句中最多有两处,每处错误仅涉及一个单词的增加、删除或修改。

增加:把缺词处加个漏字符号(∧),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:1. 每处错误及其修改均仅限一词;

2. 只允许修改10处,多者(从第11处起)不计分。

Last month, the 18th Foreign Language Speech Competition was successfully held in our boarding school. Luckily, the Students’ Union organize an English Speech Competition. At first I didn’t show some interest and wasn’t very much confident. Then my E nglish teacher Mr. Smith encouraged me. Inspiring by my teacher, I signed up for the competition and made fully preparations for it. Two weeks later , the time I had been looking forward to coming and it was his turn. Glancing at my teacher’s smiling face, I built up my confidence. Much to my delight, the result was announced and I was one of the winner. But my teacher’s encouragement, I couldn’t have won the first prize. I’m proud of Mr. Smith or the wonderful experience.

第二节:书面表达(满分25分)

上周我班周会就学生喜欢哪一种文化、艺术形式展开了讨论。当前不少文学作品被改

编成电影。有人选择看电影,有人则喜欢读原著。请你以"Film or book, which do you prefer?"为题按照下列要点写一篇英语短文:

1.看电影:省时、有趣、易懂

2.读原著:细节更多、语言优美

3.我的看法及理由

注意:1.词数100~120,文章题目和开头已给出(不计词数)。

2.参考词汇:original work 或book in the original (原著)

Film or book, which do you prefer ?

Last week our class held a discussion about the two art and cultural expression forms. Nowadays, many literary works have been adapted into a movie,

____________________________

_____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _________________________________________

_____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ ____________________

_____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________

____________________

_____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ ____________

邢台一中2015—2016学年上学期第三次月考

高二年级英语试题答案(简)(2015.11.27)

听力:1?5 CACAC 6?10 CAABC 11?15 ACAAB 16?20 AACBA

阅读:21—24 ACBD 25—28 CBAB 29—31 D A C 32---35 BCAA 36---40 DCGEA

完形:41-45 D B B A C 46-50 C A D B D 51-55 A C A D C 55-60 B A C B D

语法填空:61 memories 62 But 63 missing 64 would/should /could try 65 have made 66 the 67 that 68 should express (其他形式 e.g express 不可接受)69 who 70 responsible

短文改错:

https://www.doczj.com/doc/342541580.html,anize→organized

2.some→any

3. 去掉much

4.Inspiring→Inspired

5.fully→full

https://www.doczj.com/doc/342541580.html,ing→came

7.his→m y

8.winner→winners

9.But→Without/ 或之后加for 10.or→and

书面表达【参考范文】

Film or book, which do you prefer ?

Last week our class held a discussion about the two art and cultural expression forms. Nowadays, many literary works have been adapted into a movie, Some of us think that it is better to see the film than to read the book in the original. The reason is that it takes less time to understand the whole story. Besides, the film is usually more interesting, and it is easier to follow. Some others have just the opposite opinion. They think that they can get more detailed information from the original. Meanwhile, the language in the book is possibly more lively and beautiful.

Personally, I agree with the second view. Actually I have more reasons for it. I think I can stay at home, reading quietly in a situation of my own, and what's more, I am able to better understand the author's ideas. In a word, to read the original work is better than to see the film based on it.

2020-2021高二数学上期中试题含答案(5)

2020-2021高二数学上期中试题含答案(5) 一、选择题 1.设样本数据1210,,,x x x L 的均值和方差分别为1和4,若(i i y x a a =+为非零常数, 1,2,,10)i =L ,则1210,,,y y y L 的均值和方差分别为( ) A .1,4a + B .1,4a a ++ C .1,4 D .1,4a + 2.甲、乙两名射击运动员分别进行了5次射击训练,成绩(单位:环)如下: 甲:7,8,8,8,9 乙:6,6,7,7,10; 若甲、乙两名运动员的平均成绩分别用12,x x 表示,方差分别为2212,S S 表示,则( ) A .22 1212,x x s s >> B .22 1212,x x s s >< C .221212 ,x x s s << D .221212 ,x x s s <> 3.已知变量,x y 之间满足线性相关关系? 1.31y x =-,且,x y 之间的相关数据如下表所示: 则实数m =( ) A .0.8 B .0.6 C .1.6 D .1.8 4.某商场为了了解毛衣的月销售量y (件)与月平均气温x (C ?)之间的关系,随机统计了某4个月的月销售量与当月平均气温,其数据如下表: 由表中数据算出线性回归方程y bx a =+$$$中的2b =-$,气象部门预测下个月的平均气温为 6C ?,据此估计该商场下个月毛衣销售量约为( ) A .58件 B .40件 C .38件 D .46件 5.下面的算法语句运行后,输出的值是( )

A .42 B .43 C .44 D .45 6.执行如图的程序框图,则输出x 的值是 ( ) A .2018 B .2019 C . 12 D .2 7.已知不等式5 01 x x -<+的解集为P ,若0x P ∈,则“01x <”的概率为( ). A . 14 B . 13 C . 12 D . 23 8.将一颗骰子掷两次,观察出现的点数,并记第一次出现的点数为m ,第二次出现的点数 为n ,向量p u v =(m ,n),q v =(3,6).则向量p u v 与q v 共线的概率为( ) A . 13 B . 14 C . 16 D . 112 9.如图所示是为了求出满足122222018n +++>L 的最小整数n , 和 两个空白框中,可以分别填入( )

2020高二数学期中测试题B卷

高中二年级2013—2014学年下学期数学期中测试题B 卷 考试时间:100分钟,满分:150分 一、选择题:在每小题给出的四个选项中,只有一项是符合题目要求的,请把正确答案的代号填在题后的括号内(每小题5分,共50分) 1.复数i -2 1+2i =( ). A .i B . i - C .-45-3 5 i D .-45+3 5 i 2.已知数列{a n }中,a 1=1,n ≥2时,a n =a n -1+2n -1,依次计算a 2,a 3,a 4后,猜想a n 的表达式是( ) A .3n -1 B .4n -3 C .n 2 D .3 n -1 3.若f (x )=ln x x ,ef (b ) B .f (a )=f (b ) C .f (a )1 4.下列函数求导运算正确的个数为( ) ①(3x )′=3x log 3e ;②(log 2x )′=1x ·ln 2;③(e x )′=e x ;④(1ln x )′=x ;⑤(x ·e x )′= e x +1. A .1 B .2 C .3 D .4 5.??0 1(e x +2x )d x 等于( ) A .1 B .e -1 C .e D .e +1 6.在R 上可导的函数f (x )的图象如图所示,则关于x 的不等式x ·f ′(x )<0的解集为( )

A.(-∞,-1)∪(0,1) B.(-1,0)∪(1,+∞) C.(-2,-1)∪(1,2) D.(-∞,-2)∪(2,+∞) 7.若将一个真命题中的“平面”换成“直线”、“直线”换成“平面”后仍是真命题,则该 命题称为“可换命题”。下列四个命题,其中是“可换命题”的 是() ①垂直于同一平面的两直线平行;②垂直于同一平面的两平面平行; ③平行于同一直线的两直线平行;④平行于同一平面的两直线平行. A.①② B.①④ C.①③ D.③④ 8.已知f(x)=x2,i是虚数单位,则在复平面中复数 (1) 3 f i i + + 对应的点在( ) A.第一象限B.第二象限 C.第三象限D.第四象限 9.若凸n(n≥4)边形有f(n)条对角线,是凸(n+1)边形的对角线条数f(n+1)为( ) A.f(n)+n-2 B.f(n)+n-1 C.f(n)+n D.f(n)+n+1 10.设S是至少含有两个元素的集合.在S上定义了一个二元运算“*”(即对任意的a,b∈S, 对于有序元素对(a,b),在S中有唯一确定的元素a*b与之对应).若对任意的a,b∈S, 有a*(b*a)=b,则对任意的a,b∈S,下列等式中不恒成立的是 ( ) A.(a*b)*a=a B.[a*(b*a)]*(a*b)=a C.b*(b*b)=b D.(a*b)*[b*(a*b)]=b 二、填空题(每小题6分, 共24分)

2017-2018学年甘肃省兰州市兰州一中高二上学期文科数学期末试卷 - 学生版

2017-2018学年甘肃省兰州一中高二(上)期末数学试卷(文科) 注意事项: 1.全卷共150分,考试时间120分钟。 2.考生必须将姓名、准考证号、考场、座位号等个人信息填(涂)写在答题卡上。 3.考生务必将答案直接填(涂)写在答题卡的相应位置上。 4.本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分,共23小题,共150分,考试时间120分钟. 一、第Ⅰ卷(选择题 共60分) 一、选择题:本大题共12小题,每小5题分,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.(5分)设复数12z i =-,则z =( ) A .5 B .5 C .2 D .2 2.(5分)与命题“能被6整除的整数,一定能被3整除”等价的命题是( ) A .能被3整除的整数,一定能被6整除 B .不能被3整除的整数,一定不能被6整除 C .不能被6整除的整数,一定不能被3整除 D .不能被6整除的整数,不一定能被3整除 3.(5分)抛物线216y x =的准线方程是( ) A.4x = B.4x =- C.1 64 y = D.164 y =- 4.(5分)若双曲线22 221x y a b -=的一条渐近线经过点()3,4-,则此双曲线的离心率为( ) A. 7 B. 54 C. 45 D. 53 5.(5分)“1<m <3”是“方程+ =1表示椭圆”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 6.(5分)如图是抛物线形拱桥,当水面在l 位置时,拱顶离水面2米,水面宽4米,则水位下降2米后(水足够深),水面宽( )米.

甘肃省兰州一中2017-2018学年高二下学期期末考试英语试卷

兰州一中2017-2018-2学期 高二年级期末英语试卷 说明:本试卷分第I卷(选择题)和第II卷(非选择题)两部分。满分120分,考试时间100分钟。答案写在答题卡上,交卷时只交答题卡。 第一部分:阅读理解(共两节, 满分30分) 第一节(共10小题,每小题2分,满分20分) 阅读下列短文,从每题所给的A、B、C、D四个选项中,选出最佳选项。 A We’re a nation— a globe, in fact — obsessed with our hair. Analysts estimate the global hair product industry to be worth €22.6 billion, growing at a rate of up to seven percent a year. There seems to be no limit on what we’ll spend to avoid a bad hair day. But for devotees of an underground beauty movement, the secret lies in throwing away the shampoo, in fact all the hair products, for good. The “no—poo”method, which involves using natural substitutes or just water in place of shampoo and conditioner, is supported by several circles. Beauty insiders, including writers for women’s magazines and professional hairdressers, speak highly of how hair becomes thicker, fuller, softer and brighter. And environmentalists who are mindful of money feel great joy at the lack of chemicals in and on their bodies—not to mention the impact on their budgets. Now one devotee is hoping to take it mainstream. Lucy Aitken Read, whose book Happy Hair: The definitive guide to giving up shampoo was released last week, hasn’t used shampoo for two years and her glowing brown hair is visibly in perfect condition. For her, the motivation came after reading a study that claimed women put 515 chemicals on their bodies daily. “I initially thought ‘Ha! They didn’t research me!’,” Aitken Read says. “Then I looked at the back of my shampoo bottle and realized there were loads of chemical components I didn’t recognize in the slightest.” Strangely it’s oily hair that could benefit the most from giving up shampoo. The theory behind the “no—poo” method is that shampoo removes the hair from its natural oils, which causes the scalp (头皮) to generate more oils to replace them. This results in oil overload — oily hair—which

高二数学上学期期末考试题及答案

高二数学上学期期末考试题 一、 选择题:(每题5分,共60分) 2、若a,b 为实数,且a+b=2,则3a +3b 的最小值为( ) (A )18, (B )6, (C )23, (D )243 3、与不等式x x --23≥0同解的不等式是 ( ) (A )(x-3)(2-x)≥0, (B)00的解集是(–21,3 1),则a-b= . 14、由x ≥0,y ≥0及x+y ≤4所围成的平面区域的面积为 . 15、已知圆的方程?? ?-=+=θθsin 43cos 45y x 为(θ为参数),则其标准方程为 .

16、已知双曲线162x -9 2 y =1,椭圆的焦点恰好为双曲线的两个顶点,椭圆与双曲线的离心率互为倒数,则椭圆的方程为 . 三、 解答题:(74分) 17、如果a ,b +∈R ,且a ≠b ,求证: 4 22466b a b a b a +>+(12分) 19、已知一个圆的圆心为坐标原点,半径为2,从这个圆上任意一点P 向x 轴作线段PP 1,求线段PP 1中点M 的轨迹方程。(12分) 21、某工厂要建造一个长方体无盖贮水池,其容积为4800m 3,深为3m ,如果池 222、131719x=x 2 000000将 x 44)1(2,2200=+==y x y y x 得代入方程 即14 22 =+y x ,所以点M 的轨迹是一个椭圆。 21、解:设水池底面一边的长度为x 米,则另一边的长度为米x 34800, 又设水池总造价为L 元,根据题意,得 答:当水池的底面是边长为40米的正方形时,水池的总造价最低,

新人教版高二数学下学期期中考试试卷

一、选择题(本大题共12小题,每小题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. 复数 =() A.B.C.D. 2. 下列有关命题的说法正确的是() A.命题“若 =1,则x=1的否命题为” 若“ =1,则x 1 ” B.若为真命题,则,均为真命题 C.命题“ 使得+x+1 ”的否定是:“ 均有+x+1 ” D.命题“若x=y,则sinx=siny”的逆否命题为真命题 3. 曲线在点处的切线方程是( ) A. B.C.D. 4. 下面四个条件中,使成立的充分而不必要的条件是( ) A. B. C. D. 5. 已知抛物线的准线与圆相切,则的值为( ) A. B.1 C.2 D.4 6. 设是函数的导函数, 的图象如右图所示,则的图象最有可能的是( ) 7. 执行下面的程序框图,输出的S 值为() A. B. C. D . 8. 右侧茎叶图表示的是甲、乙两人在5次

综合测评中的成绩,其中一个数字被污 损. 则甲的平均成绩超过乙的平均成绩 的概率为() A.B. C. D. 9. 若,则的单调递增区间为() A.B.C.D. 10.椭圆的两顶点为,且左焦点为,是 以角为直角的直角三角形,则椭圆的离心率为() A. B. C. D. 11. 已知R上可导函数的图象如图所示,则不等式的解集 为() A.B. C. D. 12. 已知点是椭圆上的动点,为椭圆的两个焦点,是坐标原点,若是的角平分线上一点,且,则的取值范围是() A.B.C. D. 第II卷(非选择题,共90分) 二、填空题(本大题共4小题,每小题5分,共20分)

13. 某地区有小学150所,中学75所,大学25所. 现采用分层抽样的方法从这些学校中抽取30所学校对学生进行视力调查,应从小学中抽取_________所学校. 14. 以F1(-3,0)、F2(3,0)为焦点,渐近线方程为的双曲线的标准方程是 __________________; 15. 已知函数在处的切线与直线平行,则 =_____; 16. 已知函数在区间上恰有一个极值点,则实数的取值范围是__________________. 三、解答题(本大题共6小题,共70分,解答应写出文字说明,证明过程或演算步骤) 17.(本小题满分10分) 设互为共轭复数,满足,且在复平面内对应的点在第一象限,求 . 18.(本小题满分12分) 直线过抛物线的焦点F,是与抛物线的交点,若 , 求直线的方程. 19 .(本小题满分12分) 已知p:,q:x2-2x+1-m2 0(m>0),若 p是 q的必要而不充分条 件,求实数m的取值范围. 20.(本小题满分12分) 有两枚大小相同、质地均匀的正四面体玩具,每个玩具的各个面上分别写着数字1,2,3,5. 同时投掷这两枚玩具一次,记为两个朝上的面上的数字之和. (1)求事件“m不小于6”的概率; (2)“m为奇数”的概率和“m为偶数”的概率是不是相等?证明你作出的结论.

高二上学期数学期中考试题及答案

江苏省东海县08-09学年高二期中考试 数学试题 用时:120分钟 满分:160分 一、填空题:本大题共14小题,每小题5分,共计70分.不需写出解答过程,请把答案直接填写在题中横线上. 1.采用系统抽样从容量为2000的总体中抽取一个容量为100的样本,采用随机的方式将总体中的个体编号为1,2,3,…,2000,并在第一段中用抽签法确定起始号码为12,则选入样本的个体的最大编号为 . 2.命题“矩形的对角线相等”的否定是 . 3.根据左下图所示的伪代码,可知输出的结果S= . 4.右上图为函数()y f x =根据输入的x 值计算y 值的 流程图,则()y f x =的解析式为()f x = . 5.已知函数2 ()cos f x x x =-,对于ππ22 ??-???? ,上的任意12x x ,,有如下条件:①12x x > ; ②22 12x x >;③12||x x >.其中是12()()f x f x >的充分条件是 (将充分条件的序 号都填上) . 6.设有一个正方形网格,其中每个最小正方形的边长都为5cm.现用直径为2cm 的硬币投掷到此网格上,则硬币落下后与格线没有公共点的概率是 . 7.在5张卡片上分别写有数字1,2,3,4,5,从这5张卡片中随机抽取3张,则取出的3 张卡片上的数字之和为奇数的概率为 . 8.函数()a f x x x =+ (a 为常数)在[2,)+∞是单调增函数的充要条件是 . 9.已知线段AB =3cm,线段CD =5cm,在点,C D 之间随机选取一点M ,将线段CD 分成两段

,CM MD ,则线段AB ,,CM MD 能构成一个三角形的三边的概率等于 . 10.命题“钝角的余弦值是负数”的 逆 否 命 题 是 . 11.用4种不同颜色给如图所示的3个矩形随机涂色,每个矩形 只涂一种颜色,则3个矩形颜色都不同的概率为 . 12.函数21 ()(1)2 x f x x x x -= ≥++的值域为 . 13.某校高二年级有100名学生参加某项综合能力测试,他们的成绩统计如下: 则这100名学生成绩的方差为 2分. 14.某县中学教师与小学教师人数之比为1∶3;在中、小学全体教师中,女教师占%;在中学教师中,女教师占40%.为了解不同性别教师的健康状况,现要用分层抽样的方法从该县中、小学教师中抽取一个容量为200的样本,那么小学女教师应抽 人. 二、解答题:本大题共6小题,共计90分.解答应写出文字说明、证明过程或演算步骤. 15.(本题满分14分) 某种产品有三个等级:一等品、二等品、次品,其中一等品和二等品都是正品.现有7件该产品,从中随机抽取2件来进行检测. (1)若7件产品中有一等品4件、二等品2件、次品1件. ①抽检的2件产品全是一等品的概率是多少 ②抽检的2件产品中恰有1件是二等品的概率是多少 (2)如果抽检的2件产品中至多有1件次品的概率不小于5 7 ,则7件产品中次品至多可以有多少件 16.(本题满分14分) 从某校高一年级的516名新生中用系统抽样的方法抽出一个容量为50的身高样本,数据如下(单位:cm). 作出该样本的频率分布表,并绘制频率分布直方图.

高二期中考试数学试题卷

天心区第一中学2016年下学期数学学科期中考试试题卷 (时间:120分钟,满分:100分) 一、选择题(本大题共10小题,每小题3分,共30分.在每小题给出的4个选项中,只有一项是符合题目要求的) 1.以下语句是命题的是( ) A.2不是无理数 B .现在考试吗? C .x +5>0 D .这道题真容易呀! 2.下列给出的算法语句正确的是 ( ). A.3A = B.1+=x x C.INPUT y x + D. PRINT 1+=x x 3.F 1,F 2是定点,且|F 1F 2|=6,动点M 满足|MF 1|+|MF 2|=6,则点M 的轨迹方程是( ) (A)椭圆 (B)直线 (C)圆 (D)线段 4.已知ABC ?的周长是16,)0,3(-A ,B )0,3(, 则动点C 的轨迹方程是( ) (A) )0(1162522≠=+y y x (B) 1162522=+y x (C)1251622=+y x (D))0(125162 2≠=+y y x 5.下列说法正确的是( ) A .命题“若x 2=1,则x =1”的否命题为:“若x 2=1,则x ≠1” B .“x =-1”是“x 2-5x -6=0”的必要不充分条件 C .命题“存在x ∈R ,使x 2+x +1<0”的否定是:“对任意x ∈R, 均有x 2+x +1>0” D .命题“若x =y ,则sin x =sin y ”的逆否命题为真命题 6.用秦九韶算法求多项式f(x)=0.5x 5+4x 4-3x 2+x -1当x =3的值时,先算的是( ) A .3×3=9 B .0.5×35=121.5 C .0.5×3+4=5.5 D .(0.5×3+4)×3=16.5 7.运行如图的程序框图,设输出数据构成的集合为A ,从集合A 中任取一个元素α,则函数y =x α ,x ∈[0,+∞)是增函数的概率为( ) A.37 B.45 C.35 D.34 8.某中学有学生270人,其中一年级108人,二、三年级各81人,现要利用抽样方法抽取10人参加某项调查,考虑选用简单随机抽样、分层抽样和系统抽样三种方案,使用简单随机抽样和分层抽样时,将学生按一、二、三年级依次统一编号为1,2,…,270,并在使用系统抽样时,将整个编号依次分为10段. 如果抽得号码有下列四种情况: ①7,34,61,88,115,142,169,196,223,250;

甘肃省兰州一中2013-2014学年高二下学期期末考试英语试题Word版含解析

甘肃兰州一中2013—2014学年度下学期期末考试 高二英语试题 【试卷综评】本试卷以新课标为指导,从学什么,考什么的原则出发,遵循“题在书中”,既重基础又注重综合能力的提高。围绕书本内容设计基础能力题,旨在考查教师平时在该部分教学执行情况,特别是语法填空、短文改错和单词拼写等都考查了学生的基础知识的理解和运用情况。阅读理解选材具有时代性,紧密联系生活实际,选项设计灵活合理,注重考查学生的阅读理解能力。书面表达是关于人们工作方式的议论文,学生对此类话题很感兴趣,因此他们会有话可说、可写,考查了学生的基础知识应用能力。总之,本次期末试卷难度适中,是一份质量较高的试卷。 说明:本试卷分选择题和非选择题两部分,满分100分,考试时间100分钟。答案写在答题卡上,交卷时只交答题卡。 一.单项选择(每题1分,共15分) 1. In the eyes of _____ local people, the young soldier is _____ second to none, for he managed to save _____ old lady at the risk of his life. A. /; /; the B. the; the; the C. the; /; an D. /; a; an 知识点:冠词 解析:选C,第一空是特指,当地的人们;第二空不需要冠词,second to none举世无双,首屈一指;第三个空是不定代词,表示“一位”。故选C。 技巧点拨:牢记冠词用法。 典型总结:不定冠词的用法:1) 表示某一类人或某事物中的任何一个,经常用在第一次提到某人或某物时,用不定冠词起介绍作用,表示一个。如:I gave him a book yesterday. 我昨天给了他一本书。2) 表示人或事物的某一种类, 强调整体, 即以其中的一个代表一类。如:A horse is useful to mankind. 马对人类有用。3) 不定冠词用在事物的"单位"前,如时间, 速度, 价格等意义的名词之前,表示"每一"。如:We often go to school two times a day. 我们常常一天两次去学校。4)用在序数词前表示“再一”、“又一”。如:I want to go there a second time 我想再一次去那里。5)不定冠词用来指某人某物,但不具体说明任何人或任何物。如:A boy came to see you a moment ago. 刚才有一个小孩来找你。 2. By the time you have finished this book, your meal ____ cold. A. gets B. has got C. will get D. is getting 知识点:时态 解析:选C,by the time引导的是时间状语从句,主句应用将来时,故选C。 技巧点拨:读题意,找关键,定时态。 3. The origin of Chinese culture ____ more than 5,000 years ago. A. is dated back to B. dates back to C. is dated from D. dates back 知识点:时态和语态 解析:选B,题干中缺少谓语动词,date back to追溯到,date为不及物动词,不用被动语态,故选B。 技巧点拨:读题意,找关键,定时态。 4. Studying Wendy’s menu, I found that many of the items are similar to ____ of McDonald’s. A. ones B. those C. any D. that 知识点:代词

2020年高二数学上期中试题(含答案)

2020年高二数学上期中试题(含答案) 一、选择题 1.如图,正方形ABCD 内的图形来自中国古代的太极图,正方形内切圆中的黑色部分和白色部分关于正方形的中心成中心对称,在正方形内随机取一点,则此点取自黑色部分的概率是 A . 14 B . 8 π C . 12 D . 4 π 2.民间有一种五巧板拼图游戏.这种五巧板(图1)可以说是七巧板的变形,它是由一个正方形分割而成(图2),若在图2所示的正方形中任取一点,则该点取自标号为③和④的巧板的概率为( ) A . 518 B . 13 C . 718 D . 49 3.为研究某种细菌在特定环境下,随时间变化的繁殖情况,得到如下实验数据: 天数x (天) 3 4 5 6 繁殖个数y (千个) 2.5 3 4 4.5 由最小二乘法得y 与x 的线性回归方程为??0.7y x a =+,则当7x =时,繁殖个数y 的预测值为( ) A .4.9 B .5.25 C .5.95 D .6.15

4. 某程序框图如图所示,若输出的S=57,则判断框内为 A.k>4? B.k>5? C.k>6? D.k>7? 5.某单位有职工750人,其中青年职工350人,中年职工250人,老年职工150人,为了了解该单位职工的健康情况,用分层抽样的方法从中抽取样本 . 若样本中的青年职工为7人,则样本容量为 A.7 B.15 C.25 D.35 6.执行如图所示的程序框图,则输出的n值是() A.5B.7C.9D.11 7.有5支彩笔(除颜色外无差别),颜色分别为红、黄、蓝、绿、紫.从这5支彩笔中任取2支不同颜色的彩笔,则取出的2支彩笔中含有红色彩笔的概率为 A.4 5 B. 3 5 C. 2 5 D. 1 5

高二理科数学期中测试题及答案

高二期中理科数学试卷 第I 卷 (选择题, 共60分) 一、选择题(共12小题,每小题5分,共60分) 1、复数 i -25 的共轭复数是( ) A 、2+i B 、2-i C 、i --2 D 、i -2 2、 已知f(x)=3 x ·sinx ,则'(1)f =( ) A. 31+cos1 B. 31sin1+cos1 C. 3 1 sin1-cos1 D.sin1+cos1 3、设a R ∈,函数()x x f x e ae -=-的导函数为()'f x ,且()'f x 是奇函数,则a 为( ) A .0 B .1 C .2 D .-1 4、定积分dx e x x ? -1 )2(的值为( ) A .e -2 B .e - C .e D .e +2 5、利用数学归纳法证明不等式1+12+13+ (1) 2n -1 0,则必有( ) A .f (0)+f (2)< 2 f (1) B .f (0)+f (2)≥ 2 f (1) C .f (0)+f (2)> 2 f (1) D .f (0)+f (2)≤ 2 f (1) 第Ⅱ卷 (非选择题, 共90分) 二.填空题(每小题5分,共20分) 13、设2,[0,1]()2,(1,2] x x f x x x ?∈=?-∈?,则2 0()f x dx ?= 14、若三角形内切圆半径为r ,三边长为a,b,c 则三角形的面积1 2 S r a b c = ++(); 利用类比思想:若四面体内切球半径为R ,四个面的面积为124S S S 3,,S ,; 则四面体的体积V= 15、若复数z =2 1+3i ,其中i 是虚数单位,则|z |=______. 16、已知函数f(x)=x 3+2x 2-ax +1在区间(-1,1)上恰有一个极值点,则实数a 的取值范围 _____. 三、解答题(本大题共70分) 17、(10分)实数m 取怎样的值时,复数i m m m z )152(32 --+-=是: (1)实数?(2)虚数?(3)纯虚数? 18、(12分)已知函数3 ()3f x x x =-. (1)求函数()f x 在3 [3,]2 -上的最大值和最小值. (2)过点(2,6)P -作曲线()y f x =的切线,求此切线的方程.

甘肃兰州一中高二期末考试英语

兰州一中2014-2015-2学期期末考试 高二英语 说明:本试题共六大题,满分100分,考试时间100分钟。请将答案写在答题纸上,交卷时只交答题纸。 祝考试顺利 一、完形填空(每小题1分,共20分) Arabs 1 it extremely bad manners to start talking business immediately. 2 the busiest government official or executive always takes 3 time to be polite and offer refreshments (点心). No matter how busy you are, you should make time for this hospitality. The "conference visit" is a way of doing business throughout the Arab world. Frequently, you will have to discuss your business 4 strangers, who may or may not have anything to do with your business. Do not be surprised if your meeting is 5 several times by people 6 come into the room unannounced, 7 or speak softly to the person with whom y ou are talking, and leave . Act 8 you do not hear, and never show displeasure at being interrupted. Making decisions 9 is not an Arab custom. There is a vagueness(not clearly expressed)in doing business in the Middle East that 10 a newcomer. Give yourself lots of time and ask lots of questions. 11 is an important quality. You may have to wait two or three days to see high-level government officials as they are very busy. Give yourself enough time. Personal relationships are very important. They are the key to doing business in Arab countries. Try to 12 the decision-ma ker regarding your product service immediately and get to know him on a friend basis. Do your 13 . Be prepared to discuss details of your product or proposal. Be ready to answer technical questions. Familiarize yourself with the Moslem and national holidays. 14 a visit during Ramadan(斋月), the Moslem month of fasting. Most Arab countries have six-day workweek form ,Saturday through Thursday. When matched with the Monday to Friday practice in most Western countries, it leaves only three and a half workdays shared. Remember this in 15 your appointments. Moslems do not eat pork. Some are strict about the religion’s ban against alcoholic drinks. If you are not sure, wait for your 16 to sugges t the proper thing to 17 . When an Arab says yes, he may mean " 18 ". When he says maybe, he probably means "no". You seldom get a direct "no" from an Arab because it is considered 19 . Als o, he does not want to close his options. Instead of “no”, he will say “inshallah”, which means, “if God is willing”. 20 the other hand, "yes" does not always mean "yes". A smile and a slow nod might seem like an agreement, but in fact, your host is being polite. An Arab considers it impolite to

甘肃省兰州2019-2020学年高二上学期期末考试生物(理)试题 含答案

兰州一中2016-2017-1学期期末考试试题 高二生物(理科) 说明:本试卷分第I卷(选择题)和第II卷(非选择题)两部分,满分100分,考试时间100分钟。答案写在答题卡上,交卷只交答题卡。 第Ⅰ卷(共50分) 单项选择题(四个选项中,只有一个选项最符合题意,每小题2分,共50分)1.下列有关细胞生命历程与蛋白质的关系叙述中,正确的是 A.细胞癌变后细胞膜上糖蛋白增多是其在体内易扩散的重要原因 B.健康人年老后黑色素细胞因缺乏酪氨酸酶将导致头发变白 C.人体神经元与肌细胞的差异与所含蛋白质种类完全不同有关 D.细胞不同生命历程中蛋白质种类差异与核基因差异表达有关 2.下列现象中属于细胞编程性死亡的是 A. 噬菌体裂解细菌的过程 B. 因创伤引起的细胞坏死 C. 造血干细胞产生红细胞的过程 D. 蝌蚪发育成青蛙过程中尾部细胞的死亡3.下列有关证实“DNA是遗传物质”的实验的叙述中,不正确的是 A.噬菌体侵染细菌的实验比细菌转化实验更具有说服力 B.R型细菌转化为S型细菌属于基因重组 C.对S型细菌的物质进行提纯鉴定后,才能加到培养R型细菌的培养基中 D.噬菌体侵染细菌的实验中,离心的目的是使吸附在细菌上的噬菌体与细菌分离 4.下列有关DNA分子的叙述中,正确的是 A.有丝分裂中期细胞内染色体数与DNA总数之比小于1:2 B.有丝分裂间期和减数第一次分裂前期均进行核DNA的复制 C.沃森与克里克通过构建数学模型提出DNA的双螺旋结构 D.每个脱氧核糖通过磷酸二酯键与2个磷酸相连 5.下列关于遗传物质的叙述中,不正确的是 A.真核生物的遗传物质是DNA B.某生物细胞核和细胞质中的遗传物质分别是DNA和RNA C.绝大多数生物的遗传物质是DNA D.除部分病毒外,生物的遗传物质都是DNA

最新人教版高二数学上册期中考试试卷(文科 附答案)

最新人教版高二数学上册期中考试试卷(文科 附答案) 一、选择题(每小题5分,共60分) 1.若直线l 过点()()1,1,2,1A B --,则l 的斜率为( ) A. 23- B. 32- C. 23 D. 32 2.若直线x +2y +1=0与直线a x +y 鈭?=0互相垂直,那么a 的值等于( ) A. 鈭? B. C. D. 1 3.圆224630x y x y ++--=的圆心和半径分别为( ) A. (4,-6),16 B. (2,-3),4 C. (-2,3),4 D. (2,-3),16 4.已知椭圆G 的中心在坐标原点,焦点在x 轴上,短轴长为2,且椭圆G 上一点到其两个焦点的距离之和为6,则椭圆G 的方程为() A. 2219x y += B. 22194x y += C. 22136x y += D. 22 1364 x y += 5. 实轴长为2 A. C. 221x y -= D. 221x y -=或221y x -= 6. A. y = B. y x = C. 2y x =± D. y x = 7.若圆C 的半径为1,圆心在第二象限,且与直线430x y +=和y 轴都相切,则圆C 的标准方程是 ( ) A. ()()22131x y ++-= B. ()()22 131x y -++= C. ()()22131x y +++= D. ()()22131x y -+-= 8.直线2x 鈭抷鈭?=0被圆 x 鈭? 2+ y +2 2=9截得的弦长为 ( ) A. 2 5 B. 4 C. 3 D. 2

9.已知焦点在x 轴上的椭圆2213 x y m +=的离心率为12,则m =( ) A. 6 B. C. 4 D. 2 10.动圆M 与圆()221:11C x y ++=外切,与圆()222:125C x y -+=内切,则动圆 圆心M 的轨迹方程是( ) A. 22189x y += B. 22198x y += C. 2219x y += D. 2 219 y x += 11.已知两点(),0A a ,(),0B a -(0a >),若曲线22230x y y +--+=上存在点P ,使得90APB ∠=?,则正实数a 的取值范围为( ) A. (]0,3 B. []1,3 C. []2,3 D. []1,2 12.已知F 1,F 2是椭圆的左、右焦点,点P 在椭圆上,且, 线段PF 1与y 轴的交点为Q ,O 为坐标原点,若△F 1OQ 与四边形OF 2PQ 的面积之比 为1: 2,则该椭圆的离心率等于 ( ) A. B. C. D. 二、填空题(每小题5分,共20分) 13.在平面直角坐标系xOy 中,双曲线22 143 x y -=的离心率是____. 14.直线210x ay +-=与直线()110a x ay ---=平行,则a 的值是___________ 15. 方程22 195x y m m +=--表示焦点在y 轴的椭圆,则实数m 的取值范围是 16. 直线 (3)y k x =-与圆22(3)(2)4x y -+-=相交于M 、N 两点,若MN ≤k 的取值范围是 三、解答题(共6题,共70分,请在答题卷上相应区域内写清楚过程) 17(本题满分10分) (1)焦点在x 轴的椭圆,长轴长是短轴长的3倍,且一个顶点为点P (3,0),求椭圆的标准方程.

相关主题
文本预览
相关文档 最新文档