第I卷（选择题共115分）
第一部分（30分）
I：听力（共两节，满分30分）
第一节（共5小题；每小题1.5分，满分7.5分）
听下面5段对话。每段对话后有一小题，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 is wrong with the speakers?
A. They lose their way.
B. They took the wrong bus.
C. They can’t find their map.
2.How much would it cost to stay in Wuzhen for two days?
A. 120 yuan
B. 200 yuan
C. 240 yuan
3.Where does the conversation most probably take place?
A. In a bank
B. In a shop
C. In a factory
4.What does the woman suggest the man wear?
A. suit
B. A sweater
C. A silk tie
5.What does the woman suggest the man do?
A. Cancel one of his appointments.
B. Have breakfast with David and Jim.
C. Meet one of his friends at breakfast.
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2-4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5秒钟时间阅
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。
听第下面一段对话，回答第6、7题。
6.What are the speakers mainly talking about?
A. Food
B. Hobbies
C. TV programs
7.What is the man probably?
A. student
B. A reporter
C.A doctor
听第下面一段对话，回答第8—10题。
8.What’s the probable relationship between the speakers?
A. Customer and waiter.
B. Manager and clerk.
C. Husband and wife.
9.Why does the woman question the man?
A. She is making a complaint .
B. She is asking the man for the bill.
C. She is expressing her thanks to the man.
10.What should be improved according to the woman?
A. Water
B. Desserts
C. Service
听第下面一段对话，回答第11—13题。
11.When did the speakers go to the Amanda’s yesterday?
A. In the morning
B. In the afternoon
C. In the evening
12.What tasted too sweet?
A. Cakes
B. Wine
C. Coffee
13.What do we know about the speakers?
A. They both liked the fresh cream
B. They will call on Amanda to thank her.
C. Their stomachs feel uncomfortable.
听第下面一段对话，回答第14—16题。
14.Where has the woman just been back from?
A. Germany
B. France
C. Brazil
15.what did the fortune-tellers use to tell fortune?
A. Snakes
B. Shells
C. Cloth
16.What unusual things did the man see on Paris?
A. Street performers
B. Street vendors
C. Fried hot bean cakes
听第下面一段对话，回答第17—20题。
17.What can we learn about Boxing Day?
A. It is celebrated all over the world.
B. It is always celebrated at weekends.
C. It is an official holiday in some countries.
18.How does Boxing Day get its name?
A. The poor receive gifts from the church on that day.
B. The citizens throw away boxes from Christmas presents.
C. The servants carry around boxes to receive tips from the noble man.
19.When do public workers get Christmas presents nowadays.
A. On Christmas Day
B. Before Christmas Day
C. After Christmas Day
20.How do most people spend Boxing Day?
A. Making potato bread
B. Holding parades
C. Relaxing at home
第二节单项填空（共15小题，每题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。21．-Let me introduce myself,I am Albert.
- ________.
A. What pleasure
B. It’s my pleasure
C. Pleased to meet you
D. I am very pleased
22．I want to buy a computer.Could you please give me ________ ?
A. an advice
B. advice
C. some advices
D. some advice
23．_______ done for us?
A. What do you think he has
B. What do you think has he
C. Do you think what he has
D. Do you think what has he
24．All the people _________ at the party were his supporters.
A.present
B. thankful
C.interested
D. important
25．________, and you’ll know which one is good.
A. Compared with these two ones
B. Compare this one with that one
C. Compare this one to that one
D. Compared to this one with that one 26．________ houses were knocked down in the earthquake.
A. A number of
B. The number of
C. A great many of
D. A great deal of
27．________ you start doing something, you mustn’t stop half—way.
A. While
B. Though
C. As
D. Once
28.One of the best ways for people to keep fit is to________ healthy eating habit.
A.grow
B.develop
C.increase
D.raise 29．According to the recent U.S.survey,children spend up to 25 hours a week______ TV.
A. to watch
B. to watching
C. watching
D. watch
30．He _______of the people’s interests so he will always be remembered by us.
A. died for
B. died of
C. died from
D. died
31．The room, where there are ________ one bed, is almost empty.
A. not more than
B. no more than
C. not less than
D. no less than
32．The reason _______ he died is _______ he had got heart diseases.
A. for; that
B. that; why
C. why; that
D. why; why
33．–Have you ever been to Paris?
–Yes, it’s the most beautiful city ________.
A. which I’ve ever been to
B. that I’ve never been to
C. that I’ve ever been to
D. where I’ve never been to
34．He _______, but he does’t now.
A. is used to smoke
B. is used to smoking
C. used to smoke
D. uses to smoke
35．Was it during the second world war ________ he died?
A. that
B. while
C. in which
D. then
第三节完形填空（共20小题，每题1.5分，满分30分）
阅读下面短文，在短文后所给的四个选项（A、B、C和D）中选出可以填入空白处的最佳选项
One evening, Mr Green was driving his car along a lonely country road. He had 36 ￡10 000 from the bank in town. Suddenly a man in rags stopped him and asked for 37 . Mr Green told him to get on and continued his way. 38 he talked to the man, he 39 that he had just broken out of prison. Mr Green was very afraid at the 40 of the money. Suddenly he saw a police-car and had a 41 idea. He sped up and 42 as quickly as possible. Then he found the police-car running 43 him. After a mile 44 the police-car passed him and ordered him to stop. A policeman came up. Mr Green had hoped to tell him about the trouble but the man put a gun to Mr Green's 45 .
The policeman said he wanted Mr Green's name and 46 and Mr Green obeyed. The policeman wrote it down in his notebook and put it in his 47 . ―You48 appear at the police station.― He said. Then he talked to Mr Gree n about 49 driving. Mr Green started up his car again. He had 50 all hope of his ￡10,000, but as he reached a more lonely part, the robber said he wanted to 51 . Mr Green stopped and the man said. ―52 . You've been 53 to me. This is what I can do in 54 .‖ And he handed Mr Green the policeman's55 , which was stolen while the policeman was talking to Mr Green.
36. A. taken B. held C. brought D. drawn
37. A. money B. help C. a 个ift D. money
38. A. As B. Since C. Then D. Because
39. A. recognized B. learned C. supposed D. expected
40. A. sight B. idea C. touch D. thought
41. A. fast B. good C. strange D. bad
42. A. drove B. ran C. hurried D. Came on
43. A. behind B. with C. after D. beside
44. A. and so B. or so C. and so on D. or so on
45. A. head B. shoulder C. back D. neck
46. A. number B. home C. place D. address
47. A. car B. pocket C. hand D. trousers
48. A. shall B. will C. would D. need
49. A. careful B. normal C. drunk D. dangerous
50. A. held out B. build up C. given up D. turn over
51. A. run away B. break away C. set out D. get out
52. A. I'm sorry B. You're welcome C. That's all right D. Thank you
53. A. kind B. polite C. known D. necessary
54. A. all B. fact C. return D. the end
55. A. gun B. pen C. money D. notebook
第三部分阅读理解（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 farmer had a cow. He took very good care of this cow and one day when it was ill, he was very worried. He telephoned the vet.
―What’s the problem?‖ The vet asked him when he arrived.
―My cow's ill,‖ the farmer said. ―I don’t know what's the matter with her. She’s lying down and won’t eat. She's making a strange noise.‖
The vet looked over the cow. "She's certainly ill," he said, "and she needs to take some very strong medicine.
He took a bottle out of his box, put two pills into his hand and said, "Give her these. The pills should make her better."
―How should I give them to her?‖ the farmer asked.
56. In the story, the vet must be _________.
A. the farmer's friend
B. a milk factory
C. a hospital for cows
D. a doctor for animals
57. The farmer asked the vet for help when his cow _______
A. couldn't lie down
B. didn't eat the pills
C. couldn't make any noise
D. was ill
58. What medicine did the vet give the farmer?
A. Bottle of pills.
B. A long tube.
C. Two pills.
D. A small box.
B
These days' experience , like many other things , are becoming increasingly expensive . One has to get to pay a lot to get , even an ordinary one.
Not long ago , I wanted to invite my friends to a lunch . What we really need was a good and a quiet place for a talk , not a big meal . So I chose one and told my friends to go there .
After I ordered , I was asked whether I would eat a 100 yuan or 200 yuan lunch , I said , "200 yuan ." I didn't realize until I was asked to pay after lunch, that "200 yuan" means "200 yuan for person each."
There were five people that day , and all of us were surprised by the 200 yuan meal .The bill came at last : it was 1260 . I paid the bill without a word .
What could I say ? It was not their fault(过失). It was my own fault that made me pay the largest bill in my life ---I knew little about the market prices.
However , it was not so dad : we had a good lunch and at a quiet place . Besides , the experience will help in my later years .
To support my idea, I have developed my own way of thinking about the price : 200 yuan for the lunch and 1060 for the experience . This paid experience has made me ten times wiser .
59. I ordered a lunch ____ .
A. so as to have a big lunch
B. so that we could have a good meal
C. in order to introduce my friends to the restaurant
D. to have a talk in a good place
60. I thought I ordered a meal that would cost _____ .
A. me 100 yuan
B. me 200 yuan
C. us 200 yuan each
D. me 1260 yuan
61. The last sentence of the passage expressed ____ .
A. my thanks to the restaurant
B. my happiness to be times wiser
C. my anger at the experience
D. my pleasure to have a good lunch
62. I paid the largest bill in my life because ______ .
A. the restaurant cheated the customers
B. there was a misunderstanding between the restaurant and the customer
C. I was unknown to the restaurant
D. I knew little about the market prices
C
Mr King works in a shop and drives a car for the manager. He drives carefully and can keep calm in time of danger. And he escaped from several accidents. The manager pays him more and the traffic policemen often speak highly of him.
Mr Baker，one of his friends，works in a factory outside the city. It’s far from his house and he has to go to work by bus. As the traffic is crowded in the morning，sometimes he’s late for the
work. His manager warns the young man that he will be sent away unless he gets to his office on time. He hopes to buy a car，but he hasn’t enough money. He decides to buy an old one. He went to the flea （跳蚤）market which sold old cars and at last he chose a beautiful but cheap car. He said he wanted to have a trial （试验）drive，the seller agreed. He called Mr King and asked him to help him.
Mr King examined the car at first and then drove it away. It was five in the morning and there were few cars in the street. At first he drove slowly and it worked well. Then he drove fast. And when he reached a crossing，the lights turned red. He tried to stop it，but he failed and nearly hit an old woman who was crossing the street. A policeman told him to stop，but the car went on until it hit a big tree by the road.
―Didn’t you hear me？‖ the policeman asked angrily.
―Yes，I did，sir，‖ said Mr King，―Since it doesn’t listen to me，can it obey you？‖根据以上短文内容，然后从每题所给的四个选项中选择最佳选项。
63. Mr King is paid more because he _______.
A. always drives very slowly
B. is not afraid of danger
C. had driven for years
D. drives very well
64. Mr Baker went to the flea market to _______.
A. buy a second-hand car
B. have a trial drive
C. choose a new car
D. sell his old car
65. Mr King tried to stop the car when _______.
A. he saw an old woman crossing the street
B. he saw a big tree
C. the traffic lights turned red
D. the policeman shouted angrily at him
66. Which of the following is true？
A. Mr King will be sent away if he keeps being late
B. Mr Baker can’t afford to buy an old car
C. Mr King didn’t hear the policeman
D. Something was wrong with the car
D
The food we eat seems to have a great effect on our health. Although science has made big steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some researches has shown that perhaps eighty percent of human illness is related to food and forty percent of cancer is related to food as well. That food is related to illness is not a new discovery. In 1945, some researchers realized that things commonly used to keep colour in meats and other food additives（添加剂）caused cancer.
Yet, these additives remain in our food, and it is difficult to know which things on the wrappings（包装）of foods are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin to their animals, and because of this, penicillin has been found in the milk of cows. Sometimes similar tings are supplied to animals not for their health, but just to make a profit.
The farmers are simply trying to fatten the animals in order to get a higher price on the market. Although some countries have tried to control such things, the practice continues.
67. According to this passage, we can know___________.
A. perhaps most of human illness is caused by what we eat
B. perhaps most kinds of cancer are related to what people eat
C. cancer was discovered in 1945
D. science has made food unfit to eat
68. Things that are used to keep colours in meats are________.
A. harmful
B. useless
C. helpless
D. dangerous
69. All the additives________.
A. are bright and colourless
B. are not bright and colourful
C. have indirect effects on our health
D. have direct effects on our health
70. People use additives_________ .
A. to make food more unfit to eat
B. to improve the colour and taste of the food
C. to change colour of the food
D. to take off the diseases of the food
第二节（共5小题，每小题2分，满分10分）
根据短文的内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
My mother is a diligent and kind woman. She is very busy from morning till night. As a teacher, she works hard. 71 Both my brother and I love her dearly as she loves us.
My mother has been teaching math at a middle school in my hometown. She goes to work early in the morning and does not return home until late in the afternoon. 72 She treats them with patience and teaches them well. For her excellent quality and very good teaching results, she has been elected as a model teacher several times.
73 Every day, when she comes back home from work, she sets about doing housework, sweeping the living room and bedrooms or cleaning the furniture, and putting everything in good order. She seems to be busy all the time. As she has been very busy working every day, she looks older than her age. But she looks as cheerful and happy as ever. Mother never buys expensive dresses for herself, but she often buys some inexpensive but high quality clothes for us. 74 She just eats a plain meal outside when she is too busy to cook herself. She lives a busy yet simple life, without any complaints.(抱怨)
Often she says to us, ―Work while you work, and play while you play. That is the way to be happy and gay. If you do not work, you will become lazy and be of no use to society‖. What a piece of good advice this is! 75 This advice of hers will always serve as a guide to my behavior. My mother is great indeed, and I always feel proud of her.
A. She enjoys listening to classic music.
B. As a mother, she takes good care of us and gives us every comfort.
C. She loves her students and cares for them.
D. She never goes to expensive restaurants to enjoy meals.
E. My mother is hard-working and never wastes money.
F. I never forget it and always bear it in my mind.
G. Can you tell us something about your mother?
第II卷（非选择题共35分）
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。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（\）花掉。
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1处起）不计分。
I have two friend,Kari and Vance,and they come from the USA.Now they are teaching English
in the university in https://www.doczj.com/doc/a614973021.html,st year they paid a visit for our school.I never met
any foreigners before and wanted to know how I was getting on with our spoken
English,because I went over to talk with them.All of them were surprised at my good spoken English and suggested to taking a photo together.Since then,we have became good friends and now we wrote English letters to each other often.
第二节书面表达(满分30分)
越来越多的中学生深陷―QQ农场‖不能自拔。为了帮助大家正确认识―QQ农场‖，英语课上你们班开展了一次讨论。请从以下方面将这次讨论结果写成一篇英语短文，发表到你的英文博客上：
1. 分析沉迷于―QQ农场‖的原因；
2. 分析其负面影响；
3. 解决方法以及你的看法或建议。
注意：1. 开头已给出，不计入总次数；2. 词数100左右。
Recently our English teacher organized a discussion about middle school students playing the game ―QQ Farm‖.
毕节市民族中学2013—2014学年度第一学期期末考
试
高一英语参考答案
听力1-5 ABBBC 6-10 ABAAC 11-15CBCCB 16-20ACABC
单项填空21～25CDAAB 26～30ADBCA 31～35BCCCA
完形填空36～40 DCABD 41～45 BACBC 46～50 DBADC 51～55 DDACD
阅读理解56～60 DDCDB 61～65CDDAC 66～70DAACB 71～75 BCEDF
短文改错
I have two friend,Kari and Vance,and they come from the USA.Now they are teaching English
friends
in the university in https://www.doczj.com/doc/a614973021.html,st year they paid a visit for our school.I never met
a to had any foreigners before and wanted to know how I was getting on with our spoken
my English,because I went over to talk with them.All of them were surprised at my good spoken so both
English and suggested to taking a photo together.Since then,we have became good friends and become
去掉
now we wrote English letters to each other often.
write
一、第九章 静电场及其应用选择题易错题培优（难） 1．如图所示，带电量为Q 的正点电荷固定在倾角为30°的光滑绝缘斜面底端C 点，斜面上有A 、B 、D 三点，A 和C 相距为L ，B 为AC 中点，D 为A 、B 的中点。现将一带电小球从A 点由静止释放，当带电小球运动到B 点时速度恰好为零。已知重力加速度为g ，带电小球在A 点处的加速度大小为 4 g ，静电力常量为k 。则（ ） A ．小球从A 到 B 的过程中，速度最大的位置在D 点 B ．小球运动到B 点时的加速度大小为 2 g C ．BD 之间的电势差U BD 大于DA 之间的电势差U DA D ．AB 之间的电势差U AB =kQ L 【答案】BC 【解析】 【分析】 【详解】 A ．带电小球在A 点时，有 2 sin A Qq mg k ma L θ-= 当小球速度最大时，加速度为零，有 '2 sin 0Qq mg θk L -= 联立上式解得 '2L L = 所以速度最大的位置不在中点D 位置，A 错误； B ．带电小球在A 点时，有 2 sin A Qq mg k ma L θ-= 带电小球在B 点时，有 2sin 2 B Qq k mg θma L -=（） 联立上式解得
2 B g a = B 正确； C ．根据正电荷的电场分布可知，B 点更靠近点电荷，所以B D 段的平均场强大小大于AD 段的平均场强，根据U Ed =可知，BD 之间的电势差U BD 大于DA 之间的电势差U DA ，C 正确； D ．由A 点到B 点，根据动能定理得 sin 02 AB L mg θqU ? += 由2 sin A Qq mg k ma L θ-=可得 214Qq mg k L = 联立上式解得 AB kQ U L =- D 错误。 故选BC 。 2．如图所示，竖直平面内固定一倾斜的光滑绝缘杆，轻质绝缘弹簧上端固定，下端系带正电的小球A ，球A 套在杆上，杆下端固定带正电的小球B 。现将球A 从弹簧原长位置由静止释放，运动距离x 0到达最低点，此时未与球B 相碰。在球A 向下运动过程中，关于球A 的速度v 、加速度a 、球A 和弹簧系统的机械能E 、两球的电势能E p 随运动距离x 的变化图像，可能正确的有（ ） A ． B ． C ． D ． 【答案】CD 【解析】 【分析】
福建省福州市高二英语上学期期末考试试题 （完卷时间：120分钟，总分：150分） 第Ⅰ卷 第一部分听力（共两节，满分 30 分） 做题时，现将答案标在试卷上，录音内容结束后，你将有两分钟的时间将试卷上的答案转涂到答题卡上。第一节（共 5 小题；每小题 1.5 分，满分 7.5 分） 听下面 5 段对话，每段对话后有一个小题。从题中所给的 A,B,C 三个选项中选出最佳选项，并标在试卷的相应位置。听完每段对话后，你都有 10 秒钟的时间回答有关小题和阅读下一小题。每段对话仅读一遍。 1. What gift will the woman probably get for Mary? A. A schoolbag. B. A CD. C. A movie ticet. 2. What is the man doing? A. Watching TV. B. Enjoying a party. C. Looing for his clothes. 3. What does the man mainly do in his spare time? A. He plays sports. B. He plays the piano. C. He learns a language. 4. Which flavor is the most popular? A. Strawberry. B. Chocolate. C. Lemon. 5. What are the speaers taling about? A. A movie they just saw. B. A favorite actor. C. Weeend plans. 第二节（共15小题；每小题1.5分，满分22.5分） 听下面5段对话或独白。每段对话或独白后有几个小题，从题中所给的A,B,C三个选项中选出最佳选项，并标在试卷的相应位置。听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。每段对话或独白读两遍。 听第6段材料，回答第6、7题。 6. What is the relationship between the speaers? A. Former classmates. B. Teacher and student. C. Old teammates. 7. What is the woman more interested in now? A. Playing tennis. B. Playing the piano. C. Playing basetball. 听第7段材料，回答第8、9题。 8. What caused the woman’s problem?
贵州省贵阳市第一中学2018届高三12月月考数学 （文）试题 学校_________ 班级__________ 姓名__________ 学号__________ 一、单选题 1. 设集合，集合，则（）A．B．C．D． 2. 在复平面中，复数的共轭复数，则对应的点在（）A．第一象限B．第二象限 C．第三象限D．第四象限 3. 在等差数列中，已知，且公差，则其前项和取最小值时的的值为（） A．B．或C．D． 4. 下列命题正确的是（） A．存在，使得的否定是：不存在，使得 B．对任意，均有的否定是：存在，使得 C．若，则或的否命题是：若，则或 D．若为假命题，则命题与必一真一假 5. 在平面直角坐标系中，向量，，若， ，三点能构成三角形，则（） A．B．C．D． 6. 设函数，则“函数在上存在零点”是 “”的（） A．充分而不必要条件B．必要而不充分条件 C．充分且必要条件D．既不充分也不必要条件
7. 若，满足约束条件，则的范围是（）A．B．C．D． 8. 如图，设网格纸上每个小正方形的边长为，网格纸中粗线部分为某几何体的三视图，那么该几何体的表面积为（） A．B． C．D． 9. 已知某算法的程序框图如图所示，则该算法的功能是（） A．求和 B．求和 C．求和 D．求和 10. 已知正四棱锥的底面是边长为的正方形，若一个半径为的球与此四棱锥所有面都相切，则该四棱锥的高是（） A．B．C．D．
11. 已知为坐标原点，设，分别是双曲线的左、右焦点，点为双曲线左支上任一点，过点作的平分线的垂线，垂足为，若 ，则双曲线的离心率是（） A．B．C．D． 12. 已知是定义在上的奇函数，满足，当时， ，则函数在区间上所有零点之和为（） A．B．C．D． 二、填空题 13. 在中，角,,的对边分别为,,，若，， ，，则角的大小为__________． 14. 若圆与双曲线：的渐近线相切，则双曲线的渐近线方程是_______． 15. 设函数若且，，则取值范围分别是__________． 16. 已知函数，且点满足条件 ，若点关于直线的对称点是，则线段的最小值是__________．
镇海中学2018学年第一学期期末考试高一 化学试卷 1.下列物质属于盐的是 A. NaOH B. H2SO4 C. Na2CO3 D. Cl2 【答案】C 【解析】 【详解】A项、氢氧化钠是由钠离子和氢氧根离子构成的，属于碱，A错误。 B项、硫酸是由H＋和硫酸根离子构成的化合物，属于酸，B错误。 C项、碳酸钠是由钠离子和碳酸根离子构成的化合物，属于盐，C正确。 D项、氯气属于单质，不属于盐，D错误。 故本题选C。 2.在配制250 mL 0.5mo/L的NaCl溶液的实验中需要用到仪器是 A. B. C. D. 【答案】A 【解析】 【详解】根据配制250mL 0.5mol·L－1的NaCl溶液的步骤可知，配制过程中使用的仪器有：托盘天平、药匙、烧杯、玻璃棒、250mL容量瓶、胶头滴管等，所以使用的仪器为：胶头滴管、玻璃棒、250mL容量瓶； A项、根据图知A为250mL容量瓶，在配制250 mL 0.5mo/L的NaCl溶液的实验中用到，A正确； B项、根据图知B为具支烧瓶，在配制250 mL 0.5mo/L的NaCl溶液的实验中没用到，B错误；C项、根据图知C为冷凝管，在配制250 mL 0.5mo/L的NaCl溶液的实验中没用到，C错误；D项、根据图知D为酒精灯，在配制250 mL 0.5mo/L的NaCl溶液的实验中没用到，D错误；故本题选A。 3.下列物质属于原子晶体的是
A. 氯化钠固体 B. 干冰 C. 金刚石 D. 铜 【答案】C 【解析】 【详解】A项、氯化钠为离子晶体，A错误； B项、干冰为分子晶体，B错误； C项、金刚石是原子晶体，C正确； D项、铜属于金属晶体，D错误。 故本题选C。 4.下列属于氧化还原反应的是 A. CaO+H2O=Ca(OH)2 B. 2NaOH+MgCl2=Mg(OH)2↓+2NaCl C. SO2+H2O2=H2SO4 D. Cu(OH)2CuO+H2O 【答案】C 【解析】 【详解】A项、CaO+H2O=Ca(OH)2为化合反应，元素化合价没有发生变化，不属于氧化还原反应，A错误； B项、2NaOH+MgCl2=Mg(OH)2↓+2NaCl为复分解反应，元素化合价没有发生变化，不属于氧化还原反应，B错误； C项、SO2+H2O2=H2SO4为化合反应，SO2中的S元素化合价由+4价升到+6价，化合价升高作还原剂被氧化，故属于氧化还原反应，C正确； D项、Cu(OH)2CuO+H2O为分解反应，元素化合价没有发生变化，不属于氧化还原反应，D错误， 故本题选C。 5.下列分散系能产生“丁达尔效应”的是 A. 氯化钠溶液 B. 硫酸铜溶液 C. 石灰乳 D. 氢氧化铁胶体 【答案】D 【解析】 【详解】A．氯化钠溶液属于溶液，不是胶体，不能产生丁达尔效应，A错误； B．硫酸铜溶液属于溶液，不是胶体，不能产生丁达尔效应，B错误； C．石灰乳属于浊液，不是胶体，不能产生丁达尔效应，C错误； D．Fe(OH)3胶体能产生丁达尔效应，D正确。
湖北省宜昌市2016-2017学年高一化学下学期期末考试试题 可能用到的相对原子质量： H：1 C：12 N：14 O：16 Mg：24 Al：27 Cl：35.5 Fe：56 Cu：64 第I卷（48分） 一、选择题（本题共16个小题，每小题只有一个选项符合题意，每小题3分，共48分。） 1．早在古代，我国人民就积累了不少对物质化学变化的认识。例如，晋代炼丹家、医学家葛洪所著《朴子》一书中记载有“丹砂烧之成水银，积变又成丹砂”。这句话中的丹砂指的是HgS，下列关于这句话的说法正确的是（）。 A．这个过程只涉及物理变化 B．这个过程是可逆反应 C．这个过程发生了复分解反应 D．“丹砂烧之成水银”过程中还可以产生SO2 2．下列说法正确的是（）。 A．汽油、柴油、植物油都属烃类物质且均为纯净物 B．单质硅常用于制造芯片和光导纤维 C．等质量的气态乙醇和液态乙醇分别完全燃烧，前者放出的热量更多 D．漂白粉和明矾都常用于自来水的处理，二者作用原理相同 3．若N A表示阿伏加德罗常数，下列说法中正确的是（）。 A．1.6 g CH4与1.8 g NH4+所含质子数均为N A B．常温下，5.6g 铁钉与足量浓硝酸反应，转移的电子数为0.3 N A C．0.5 mol·L-1 Na2CO3溶液中，阴阳离子总数为1.5 N A D．常温常压下，44g CO2气体中所含的分子数为N A 4．在一定条件下，RO3－与R－发生如下反应：RO3－+ 5R－+ 6H＋ =3R2+3H2O，下列关于主族元素R的叙述正确的是（）。 A．R位于VA族 B．R的氢化物的水溶液是强酸 C．RO3－中的R只能被还原 D．R2在常温常压下一定是气体 5．下列试剂中，能够鉴别醋酸溶液、葡萄糖溶液、蔗糖溶液的是（）。
高二年级第一学期期末测试----英语 单项选择（共25小题；每小题1分，满分25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。 1. The film _______ him _______ what he had seen in China. A. reminded; to B. remembered; of C. recalled; with D. reminded; of 2. I sight of an empty seat at the back of the bus and went directly there. A. lost B caught C. looked D. took 3. He asked us to him ______ carrying through their plan. A. assist; with B. help; to C. assist; in D. help; with 4. His report was so exciting that it was interrupted by applause（掌声）. A. constantly B. constant C. seldom D. never 5. _______ in a friendly way, their quarrel came to an end. A. Being settled B. Settled C. Settling D. Having settled 6. A driver should __ the road when . A. concentrate on; drive B. concentrate in; driving C. concentrate to; drove D. concentrate on; driving 7. We must work hard to a good knowledge of English. A. take B. acquire C. catch D. hold 8. Tom kept quiet about the accident ________ lose his job. A. so not as to B. so as not to C. so as to not D. not so as to 9. Not until the early years of the 19th century ________ what heat was. A. man did know B. did man knew C. didn't man know D. did man know 10. The stone bridge __ _ last year is very beautiful. A. built B. was built C. being built D .to be built 11.The poor man , ________，ran out of the dark cave. A. tiring and frightened B. tired and frightened C. tired and frightening D. tiring and frightening 12. Don’t be discouraged. ______ things as they are and you will enjoy every day of your life. A. Taking B. To take C. Take D. Taken 13. These articles are written in simple language, _____ makes it easy to read. A. that B. this C. which D. it 14. After the war, a new school building was put up __________there used to be a theatre. A. that B. where C. which D. when 15. Tom’s mother kept telling him that he should work harder, but ______ didn’t help. A. he B. which C. she D. it 16. Along with the letter was his promise _______ he would visit me this coming Christmas. A. which B. that C. what D. whether 17. Victor apologized for __________ to inform me of the change in the plan.
2019?2020学年浙江省宁波市镇海中学高一（上）期中数学试卷 一、选择题：每小题4分，共40分 1．设全集U ＝R ，集合A ＝{x|x 2?2x ＜0}，B ＝{x|x ＞1}，则集合A ∩?U B ＝（ ） A 、{x|1＜x ＜2} B 、{x|1≤x ＜2} C 、{x|0＜x ＜1} D 、{x|0＜x ≤1} 2．函数f （x ）＝2x ＋3x 的零点所在的一个区间（ ） A 、（?2，?1） B 、（?1，0） C 、（0，1） D 、（1，2） 3．下列四组函数中，表示同一函数的是（ ） A 、f(x)＝32x -与g(x)＝x x 2- B 、f(x)＝1-x 1+x 与g(x)＝)1)(1(+-x x C 、f （x ）＝lgx 2与g （x ）＝2lgx D 、f （x ）＝x 0与g(x)＝01x 4．已知a ＝log 52，b ＝log 5.00.2，c ＝0.5 2.0，则a ，b ，c 的大小关系为（ ） A 、a ＜c ＜b B 、a ＜b ＜c C 、b ＜c ＜a D 、c ＜a ＜b 5．关于函数f(x)＝5 412++x x ，下列说法正确的是（ ） A 、f （x ）最小值为1 B 、f （x ）的图象不具备对称性 C 、f （x ）在[?2，＋∞）上单调递增 D 、对任意x ∈R ，均有f （x ）≤1 6．若函数f （x ）＝log 21（?x 2 ＋4x ＋5）在区间（3m ?2，m ＋2）内单调递增，则实数m 的 取值为（ ） A 、[ 34，3] B 、[3 4，2] C 、[34，2） D 、[34，＋∞） 7．设a 为实数，若函数f （x ）＝2x 2?x ＋a 有零点，则函数y ＝f[f （x ）]零点的个数是（ ） A 、1或3 B 、2或3 C 、2或4 D 、3或4 8．已知函数f （x ）＝e x ?e x -，g （x ）＝e x ＋e x -，则以下结论正确的是（ ） A 、任意的x 1，x 2∈R 且x 1≠x 2，都有2 121)()(x x x f x f --＜0
2019年宜昌重点高中排名,宜昌所有高中学校分数线排名榜 2019年宜昌重点高中排名,宜昌所有高中学校分数线排名榜 每年宜昌中考前，很多家长都关心宜昌所有的中考学校名单及排名,那么2019年宜昌中考已经就要来了，中考填报志愿选择一所好的高中学校是一件非常重要的事情，本文爱扬整理了关于2019年宜昌重点高中排名,宜昌所有高中学校分数线排名榜的相关信息，希望宜昌的考生和家长在填报志愿的时候可以参考。 一、2019年宜昌高中学校排名 排名学校名称人气所在市类型1宜昌市一中1475宜昌市省级示范高中2枝江市第一高级中学1403宜昌市省级示范高中3湖北省宜昌市夷陵中学1392宜昌市省级示范高中4宜昌市三峡高级中学1384宜昌市省级示范高中5远安县第一高级中学1282宜昌市省级示范高中6湖北省兴山县第一中学1234宜昌市省级示范高中7当阳市第一高级中学1185宜昌市省级示范高中8宜昌市第二十中学1182宜昌市省级示范高中9秭归县第一高级中学1162宜昌市省级示范高中10湖北省宜都市第一中学1146宜昌市省级示范高中11宜昌市第二中学1146宜昌市省级示范高中12长阳第一高级中学1140宜昌市省级示范高中2019年鄂州重点高中排名,鄂州所有高中学校分数线排名榜 每年鄂州中考前，很多家长都关心鄂州所有的中考学校名单及排名,那么2019年鄂州中考已经就要来了，中考填报志愿选择一所好的高中学校是一件非常重要的事情，本文爱扬整理了关于2019年鄂州重点高中排名,鄂州所有高中学校分数线排名榜的相关信息，希望鄂州的考生和家长在填报志愿的时候可以参考。 一、2019年鄂州高中学校排名 排名学校名称人气所在市类型1湖北省鄂州市鄂州高中1624鄂州市省级示范高中二、湖北省鄂州市鄂州高中学校简介及排名
第一学期期末考试 高二英语试题 第Ⅰ卷（选择题，共115分） 第一部分：听力（共两节，满分30分） 第一节（共5小题；每小题1.5分，满分7.5分） 听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，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 is the purpose of the woman’s coming to fitness club? A. To take part in the exercise here. B. To ask about the courses for her friend. C. To pick up her best friend who is exercising here 2. What does the woman mean? A. Basketball is interesting B. She doesn’t like any sport. C. Baseball is the dullest sport. 3. What are the speakers talking about? A. The singers in the show. B. Their favorite songs. C. Their favorite stars. 4. What time is it now? A. 8:00. B. 8:10. C. 8:30. 5. Why does the man want to ask for leave? A. He is sick. B. He thinks Miss Li’s class is boring. C. He has to go to visit Miss Li. 第二节听下面5段材料。每段材料后有几个小题，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。听每段材料前，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。每段材料读两遍。 听第6段材料，回答第6至8题。 6. Why can’t Sara go with the speakers? A. She has to look after her brother. B. She dislikes going with them. C. She will go to her hometown. 7. What will the speakers do this weekend? A. Go to the beach. B. Go on a picnic. C. Have lunch at Sara’s. 8. What does the woman ask the man to do tonight? A. Tell Sara their plan. B. Complete his homework. C. Go to see Sara together. 听第7段材料，回答第9至11小题。 9. Why did Jane come to the coffee house to be a waitress? A. To earn money. B. To learn English. C. To learn how to make coffee. 10. Who usually does housework at home? A. The father. B. Jane. C. The mother. 11. How many people are there in the woman’s family?
2020-2021学年贵州省铜仁市第一中学上学期半期考试 高一数学试题 本试卷分为第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分，共150分，考试时间120分钟．注意事项： 1．第Ⅰ卷的答案填在答题卷方框里，第Ⅱ卷的答案或解答过程写在答题卷指定处，写在试题卷上的无效． 2．答题前，考生务必将自己的“姓名”、“班级”和“考号”写在答题卷上． 3．考试结束，只交答题卷． 第Ⅰ卷 (选择题共60分) 一．选择题（每小题5分，共12个小题，本题满分60分） 1．设集合A {1,2,3,4}=，B {|14}x R x =∈<≤，则A B=（ ） A. {1,2,3,4} B. {2,4} C. {2,3,4} D. {|14}x x <≤ 2．下列函数中，既是奇函数又是增函数的是（ ） A. 3y x = B. 1y x = C. 3log y x = D. 1()2 x y = 3．下列各组函数中，表示同一函数的是( ) A ．()1f x x =+，2 ()=1x g x x -B ．()f x x = ，2(g x C ．2()2log f x x =，22()=log g x x D ．()f x x =， 2()=log 2x g x 4．设函数()f x =212(2)5(2)x x x x x --->{≤，则[(3)]f f 等于（ ） A.-1 B.1 C.-5 D.5 5. 函数1()2(01)x f x a a a +=->≠且的图象恒过定点（ ） A.（0，2） B.（1，2） C.（-1，1） D.（-1，2） 6. 方程22x x +=的解所在区间是（ ） A.（0，1） B.（1，2） C.（2，3） D.（3，4） 7．已知)1(2-x f 定义域为[0，3]，则(21)f x -的定义域为（ ） A.3 [1,]2 B.[0，92 ] C.[3,15]- D.[1,3] 8．三个数20.320.3,log 0.3,2a b c ===之间的大小关系是（ ） A ．b c a << B ．a c b << C ．a b c << D ．b a c <<
武汉市重点高中的排名 Final approval draft on November 22, 2020
省重点叫一类，市重点叫二类 一类的有24所： 武汉市第一中学、武汉市第二中学、武汉市第三中学、武汉市第四中学、武汉市第六中学、武汉市第十一中学、武汉市十二中、武汉市第十四中学、武汉市十七中、武汉市第四十九中学、吴家山中学、湖北省武汉中学、湖北省水果湖高级中学、武汉外国语学校、湖北省武昌实验中学、华中师范大学第一附属中学、武钢第三子弟中学、洪山高中、汉口铁中、新州区第一中学、黄陂区第一中学、武汉市汉南一中、江夏一中、蔡甸区汉阳一中 二类有25所： 武汉市育才中学、汉市第二十中学、武汉市实验学校、武汉市第十六中学、武汉市育才高中、武汉市第十九中学、武汉高第六十八中学、武汉市第二十七中学、武汉市第二十九中学、武汉市第二十六中学、武汉市第六十五中学、武汉市第二十三高中、武汉市第十五中学、武汉市女子高级中学、湖北大学附属中学、武汉市东湖中学、蔡甸区第二中学、江夏区实验高级中学、新洲区第二高级中学、新洲区第三高级中学、新洲区第四高级中学、武汉市经济开发区一中、武汉钢铁集团公司第四中学、一冶四中、武汉市常青一中 湖北省53所省级重点中学综合实力排名 1华中师范大学第一附属中学 2武汉外国语学校 3黄冈中学 4武汉市第二中学 5武汉市第六中学 6武汉市第三中学 7武汉市第四中学 8武钢第三子弟中学 9湖北省黄石市第二中学 10宜昌市夷陵中学 11荆州市荆州中学 12武汉市第十一中学 13武汉市第四十九中学 14湖北省武昌实验中学 15襄樊市第四中学 16襄樊市第五中学 17湖北省水果湖高级中学 18武汉市第一中学
第一学期高二期末测试 英语试卷 注意事项： 1. 本试卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）；全卷满分150分，考试时间120分钟。 2. 答题前，考生务必把自己的姓名、准考证号填写在答题卡上。 3. 答第Ⅰ卷时，用2B铅笔把答题卡上对应题目的答案标号涂黑、涂满；如需改动，用橡皮擦干净后，再选涂其它答案标号。 4. 答第Ⅱ卷时，用黑色墨水钢笔在答题卡规定区域内作答；答在本试卷上或超出答题区域书写的答案无效。 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1.5分，满分7.5分） 听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项。听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。 例：How much is the shirt? A.￡19.15. B.￡9.18. C.￡9.15. 答案是C。 1. who is probably the woman? A. A waitress. B. A customer. C. A cook. 2. Why did the woman feel embarrassed? A. Because the meal was unpleasant. B. Because they had no topic to talk about. C. Because she had no money to pay for the meal. 3. What can we learn from the conversation? A. The man wants to rent the apartment alone. B. The man is not satisfied with the rent. C. The apartment is near the station. 4. How much did the white dress cost? A. 299 yuan. B. 399 yuan. C. 499 yuan. 5. What is their dream apartment like? A. It has three bedrooms. B. It has a study for their son. C. It is near the city center.
2019-2020学年浙江省宁波市镇海中学高一（上）期中数学试卷一、选择题：每小题4分，共40分 1．设全集U＝R，集合A＝{x|x2﹣2x＜0}，B＝{x|x＞1}，则集合A∩?U B＝（）A．{x|1＜x＜2}B．{x|1≤x＜2}C．{x|0＜x＜1}D．{x|0＜x≤1} 2．函数f（x）＝2x+3x的零点所在的一个区间（） A．（﹣2，﹣1）B．（﹣1，0）C．（0，1）D．（1，2） 3．下列四组函数中，表示同一函数的是（） A．与 B．与 C．f（x）＝lgx2与g（x）＝2lgx D．f（x）＝x0与 4．已知a＝log52，b＝log0.50.2，c＝0.50.2，则a，b，c的大小关系为（）A．a＜c＜b B．a＜b＜c C．b＜c＜a D．c＜a＜b 5．关于函数，下列说法正确的是（） A．f（x）最小值为1 B．f（x）的图象不具备对称性 C．f（x）在[﹣2，+∞）上单调递增 D．对任意x∈R，均有f（x）≤1 6．若函数f（x）＝（﹣x2+4x+5）在区间（3m﹣2，m+2）内单调递增，则实数m的取值为（） A．[]B．[]C．[）D．[）7．设a为实数，若函数f（x）＝2x2﹣x+a有零点，则函数y＝f[f（x）]零点的个数是（）A．1或3B．2或3C．2或4D．3或4 8．已知函数f（x）＝e x﹣e﹣x，g（x）＝e x+e﹣x，则以下结论正确的是（）A．任意的x1，x2∈R且x1≠x2，都有 B．任意的x1，x2∈R且x1≠x2，都有
C．f（x）有最小值，无最大值 D．g（x）有最小值，无最大值 9．函数f（x）＝|x|+（其中a∈R）的图象不可能是（） A．B． C．D． 10．己知函数，函数y＝f（x）﹣a有四个不同的零点，从小到大 依次为x1，x2，x3，x4，则﹣x1x2+x3+x4的取值范围为（） A．（3，3+e]B．[3，3+e）C．（3，+∞）D．[3，3+e） 二、填空题：单空题每题4分，多空题每题6分 11．已知集合，则列举法表示集合A＝，集合A的真子集有个． 12．函数的定义域是，值域是． 13．已知函数，则f（f（﹣2））＝；若f（a）＝2，则实数a＝． 14．已知集合A＝B＝{1，2，3}，设f：A→B为从集合A到集合B的函数，则这样的函数一共有个，其中函数的值域一共有种不同情况． 15．若函数是R上的单调函数，则实数a的取值范围为．16．若|x|且x≠0时，不等式|ax2﹣x﹣a|≥2|x|恒成立，则实数a的取值范围为．
2021年贵州省铜仁市铜仁第一中学三模数学（理）试题 学校:___________姓名：___________班级：___________考号：___________ 一、单选题 1．若集合{}{}22|22,|log A x Z x B x y x =∈-<<==，则A B =（ ） A ．(2,2)- B ．(2,0)(0,2)- C ．{}1,0,1- D ．{}1,1- 2．已知31i z i = -，则复数z 的共轭复数z 的虚部为（ ） A ．32- B ．32 C ．32i - D ．32 i 3．已知偶函数()f x 在[0,)+∞上单调递增，则对实数a b 、，“>||a b ”是 “()()f a f b >”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 4．已知公差不为零的等差数列{}n a 的前n 项和为n S ，且257,,a a a 成等比数列，则21S 的值为（ ） A ．2- B ．0 C ．2 D ．3 5．在△ABC 中，内角A ，B ，C 所对的边分别为a ，b ，c 且3B π=，4tan 3A =，2a =，则b =（ ） A ．54 B ．53 C D 6．函数()e 21x f x x =--的图象大致为（ ） A ． B ． C ． D ． 7．已知一个简单几何体的三视图如图所示，则该几何体的体积为
A ．36π+ B ．66π+ C ．312π+ D ．12 8．若2sin 2cos22αα-=-，则tan α=（ ） A ．1-或 3- B ．1-或 1 3- C ．1或3 D ．1或13 9．定义在R 上的奇函数()f x 满足()() 12f x f x +=-，且在()0,1上()3x f x =，则()3log 54f =（ ） A ．32 B ．23 C ．32- D ．23 - 10．若正数,a b 满足 211a b +=，则4821a b +--的最小值为（ ） A ．4 B ．8 C ． D ．16 11．杨辉三角，又称帕斯卡三角，是二项式系数在三角形中的一种几何排列．在我国南宋数学家杨辉所著的《详解九章算法》（1261年）一书中用如图所示的三角形解释二项式乘方展开式的系数规律．现把杨辉三角中的数从上到下，从左到右依次排列，得数列：1，1，1，1，2，1，1，3，3，1，1，4，6，4，1……．记作数列{}n a ，若数列{}n a 的前n 项和为n S ，则47S =（ ） A ．265 B ．521 C ．1034 D ．2059 12．已知奇函数()f x 是定义在R 上的连续可导函数，其导函数是()f x '，当0x >时，
2017—2018学年度第二学期期末检测试题 高二英语参考答案 听力（20×1.5=30）：1—5 BACAB 6—10 BACCB 11—15 CAACC 16—20 BABCA 阅读理解（15×2=30）：21—23 DCB 24—27 CDBA 28—31 DCBC 32—35 BDCA 七选五阅读填空（5×2=10）：36—40 GBFEC 完形填空（20×1.5=30）：41—45 CBDAC 46—50 ABCDC 51—55 BACDB 56—60 ADABC 语法填空（10×1.5=15）： 61. smoothly 62. when 63. challenging 64. to achieve 65. a 66. attitudes 67. of 68. itself 69. better 70. are surrounded 短文改错（10×1=10）： Last Sunday, sixty students from our school pay a visit to China Science and Technology Museum. paid The museum, which main task is to spread the knowledge of science and technology, covers ∧area of whose an 48, 000 square meters. The moment when we entered the museum, the exhibition caught their attention. our In the museum, we saw the latest progresses in science and technology. Moreover, we did an amazed progress amazing scientific experiment by ourselves. What appealed for us most was the 3D film that made us feel we were to in real events. Though the visiting time was slight short, we gained a lot. It is so an instructive activity that we hope slightly such more will be organized in the future. 书面表达(满分25分)： 参考范文： Dear Chris, How is everything going? I’m Li Hua. I’m writing to inform you to change our travel plan. I’m glad that you enjoy traveling as much as I do. You can’t imagine how excited I was when you agreed to travel to Yunnan with me in July. However, something unexpected happened. I accidentally hurt my foot during a basketball match. As a result, I can’t go to Y unnan with you as planned. I’m terribly sorry about the change of the plan. In addition, can we put the travel off until August? My injury will by no means be a matter by then! I s incerely hope that the time is convenient for you. If you have made a decision, don’t hesitate to let me know. (119) I’m looking forward to your reply. Yours, Li Hua 各档次的给分范围和要求 第五档(21-25分) 完全完成了试题规定的任务。 —覆盖所有内容要点。
2019-2020学年浙江省宁波市镇海中学高一上学期期中数学 试题 一、单选题 1．设全集U =R ，集合{ } 2 20A x x x =-<，{} 1B x x =>，则()C U A B =() A ．{} 12x x << B ．{} 12x x ≤< C ．{} 01x x << D ．{} 011x <≤ 【答案】D 【解析】先解一元二次不等式,化简集合A,再利用数轴进行集合的补集和交集运算可得. 【详解】 解一元二次不等式化简集合A,得{|02}A x x =<<, 由{|1}B x x => 得{|1}U C B x x =≤, 所以(){|01}U A C B x x ?=<≤. 故选D. 【点睛】 本题考查了一元二次不等式的解法,集合的交集和补集运算,用数轴运算补集和交集时,注意空心点和实心点的问题,属基础题. 2．函数f(x)=23x x +的零点所在的一个区间是 A ．（-2，-1） B ．（-1,0） C ．（0,1） D ．（1,2） 【答案】B 【解析】试题分析：因为函数f(x)=2x +3x 在其定义域内是递增的，那么根据f(-1)= 15 3022 -=-<,f （0）=1+0=1>0,那么函数的零点存在性定理可知，函数的零点的区间为（-1,0），选B 。 【考点】本试题主要考查了函数零点的问题的运用。 点评：解决该试题的关键是利用零点存在性定理，根据区间端点值的乘积小于零，得到函数的零点的区间。 3．下列四组函数中，表示同一函数的是（ ） A ．()f x =与()g x = B ．()f x = ()g x =
C ．2()lg f x x =与()2lg g x x = D ．0()f x x =与01()g x x = 【答案】D 【解析】在A 选项中，前者的y 属于非负数，后者的0y ≤，两个函数的值域不同；在 B 选项中，前者的定义域为1x >，后者为1x >或1x <-，定义域不同；在 C 选项中， 两函数定义域不相同；在D 选项中，()0 f x x =定义域是{}()01 |0,x x g x x ≠= 的定义域为{}|0,x x ≠，定义域不相同，值域、对应法则都相同，所以是同一函数，故选D. 4．已知5log 2a =，0.5log 0.2b =，0.20.5c =，则,,a b c 的大小关系为（ ） A ．a c b << B ．a b c << C ．b c a << D ．c a b << 【答案】A 【解析】利用10,,12 等中间值区分各个数值的大小。 【详解】 551log 2log 2 a =<< ， 0.50.5log 0.2log 0.252b =>=， 10.200.50.50.5<<，故 1 12 c <<， 所以a c b <<。 故选A 。 【点睛】 本题考查大小比较问题，关键选择中间量和函数的单调性进行比较。 5．关于函数()21 45 f x x x = ++的说法，正确的是() A ．()f x 最小值为1 B ．()f x 的图象不具备对称性 C ．()f x 在[]2,-+∞上单调递增 D ．对x ?∈R ，()1f x ≤ 【答案】D 【解析】将函数()f x 变形为2 1 ()(2)1 f x x =++,根据2(2)0x +≥可知函数()f x 的最大值为1,所以A 不正确;D 正确;