绝密★启用前
宁夏育才中学2019届高三年级第一次月考
英语
本试卷分第I卷（选择题）和第II卷（非选择题）两部分。考生作答时，将答案答在答题卡上, 在本试卷上答题无效。考试结束后，将本试卷和答题卡一并交回。
注意事项：
1.答题前，考生务必先将白己的姓名、准考证号填写在答题卡上，认真核对条形码上的姓名、准考证号，并将条形码粘贴在答题卡的指定位置上。
2.选择题答案使用2B铅笔填涂，如需改动，用橡皮擦干净后，再选涂其他答案的标号；非选择题答案使用0.5亳米的黑色中性（签字）笔或碳素笔书写，字体工整、笔迹清楚。
3.考生必须按照题号在答题卡各题号相对应的答题区域（黑色线框）内作答，写在草稿纸上、超出答题区域或非题号对应的答题区域的答案一律无效。
4.保持卡而清洁，不折叠，不破损。
第I卷（选择题）
第一部分：听力理解（共两节。满分30分）
做题时，先将答案标在试卷上。录音内容结束后，你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节（共5小题：每小题1.5分，满分7.5分）
听下面五段对话。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下题。每段对话仅读一遍.
1 ? What does the woman mean?
A.The man can't smoke at all.
B.The man can smoke?
C?Neither of them can smoke here?
2? Where does the woman want to go?
B.The Art Museum.
A.The Science Museum.
C.The bus station.
3? When and where will the meeting be held?
A.Room 302,3 p.m^today.
B.Room 303,2 p.mjomorrow?
C.Room 302,2 p.m,tomorrow.
4.What can we learn from the conversation?
A.John will play?
B.John will be punished.
C.John will read his book?
5.What does the woman think of the acting?
A.Excellent
B. Just so- so
C. Very bad
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。
听笫6段材料，回答笫6至8题。
6.What is the man's occupation?
A.A psychological docto匚
B. A researche匚C? A news reporter.
7.Which of the following room did the man book before he came?
A? A double room with a shower.
B.A single room with a shower.
C.Room 523
8.When is the man checking in ?
A.Saturday?
B. Thursday . C? Tuesday?
听第7段材料，回答第9至11题。
9.Why does the woman mention the Sahara Desert?
A.She watched a film about it last night.
B.She thinks it is boring to hitchhike across the Sahara Desert.
C.She knows that the man likes foreign things.
10.What kind of film does the woman like?
A? Love stories B. Travel stories C? Horror stories
11 ? What can we learn about the man?
A.He does not like eating lunch with the woman ?
B.He likes unusual food? C? He is sick of chips.
听第8段材料，回答第12至14题。
12.Who are these two speakers?
A.A boss and her employee?
B.A headmaster and a teache匚
C.A manager and her secretary?
13.What is the problem?
A? The man is late for work.
B.The man doesn^t trust the woman?
C.The eight thirty train was cancelled?
14.How does the woman fell about the man?
A.Angry
B. Considerate
C. Positive
听第9段材料，回答第15至17题。
15? What are the man and the woman?
A.Teachers.
B. Students.
C.Workers.
16.Does the man agree to see the film together?
A.No,he doesn't?B? Yes, he does. C? Not mentioned?
17.What will the woman probably do?
A.Give the tickets to Professor Shrimp?
B.Sell the tickets to Professor Shrimp.
C.Go to the show with with Professor Shrimp.
听第10段材料，回答第18至20题。
18? Which is the reason that so many students ate the food from that soybean milk shop even on Saturday?
A? Students liked the food from that shop.
B.It was convenient for them to get food from that shop?
C.Many students were taking courses on Saturday.
19.Why did the father of a girl student say that his daughter was lucky?
A? She was sent to hospital in time.
B.She ate only little of the food she bought from that shop?
C.She vomited out the food she ate.
20.What is NOT known so far about the accident?
A.The cause of this food poisoning accident.
B.The number of people hit in the accident.
C.The time of this accident.
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A、B、C、D四个选项中，选出最佳选项。
A.
Study up on Afican American inventors
We celebrate Black History Month in February .but you should be thanking these African American inventors year-round!Their innovative ideas helped change the world?
Thomas L. Jennings was one of the very first black inventors to get a patent in 1821. Jenings" s creation—a dry-cleaning method — is just one of thousands dreamed up by Americans .Here are some cool creations.
Levis Latimer（1848-1928） contributed to a better lightbulb in 1881 with an improved type of carbon filament（碳丝）。He worked with Thomas Edison.
George Crum（1822-1914） cooked up potato chips in 1853.After hearing that his fries were too thick,
he sliced up a potato thinly and fried it ?The flat fries were a hit .and chips were born.
George Washiongton Carver( 1864-1943) mixed up more than 300 products from peanuts. He also found 75 uses for pecans(美洲山核桃).
Elijah McCoy( 1843-1929) was on the right track when he came up with his oil-dripping cup. The device kept engines oiled so trains don't need to stop to keep from overheating.
John Lee Love was a sharp guy. He invented a type of pencil sharpener so he didn't have to use a knife to perfect his pencifs point. He patented the device in 1897?
Charles Drew (1904-1950) came up with a great idea for saving lives.He figured out a way to preserve blood .His idea for blood banks has helped countless people?
Patricia Bath (1942-) created a device that made eye surgery(手术)safer and faster. The first African American female doctor to get a patent also started an eye institute in 1976.
YouM better not forget Madam C.J.Walker (1867-1919)! She dreamed up a product to regrow hair .The dream cream made her millions of dollars.
21.Who made a contribution public transportation?
A. Levis Latimer B? George Washiongton Carver
C.Elijah McCoy
D. John Lee Love
22.Whose inventions were of great significance to medical science?
A.Thomas L. Jenningses & George Crum's
B.George Washiongton Carver's & Elijah McCoy's
C.Charles Drew^s & Patricia Bathes
D.Madam C.J?Walker's & Lewis Latimer's
23.The passage is written _____ .
A.to introduce some important inventions ?
B.in honor of African Americans inventors?
C.to remind readers to respect African Americans?
D.to tell readers how to come up with innovative ideas?
Lindsay Binegar of Greenfield, Ohio,made her first $ 100 at the age of four, when she won a prize for showing a pig from her family's farm to the local 4-H Club. Most kids would be thrilled to spend that money on toys,but not Lindsay.n I didift get the money; it went to the bank,” she told The Columbus Dispatch.
Over the years, Lindsay kept on raising and showing pigs, and kept on winning prizes- Some were $ 100 for small wins, but she won thousands of dollars for championship prizes at county fairs. Before long, she earned an impressive amount of cash — but, aside from a purse when she was 14, Lindsay had never spent a dollar of her savings ? By the time she was 18, she had got more than $ 40,000, which she planned to put towards her college education at nearby Ohio University ?
But her parents said that if she continued living at home while attending school, they wouldn't have to pay for her dorm housing, and would be willing to cover the entire cost of her education. It sounded like a good deal to Lindsay. But what should she do with her savings?
Her father had an idea:buy a house, just as he'd done when he was young. He used the house's sale to help him buy the family farm where Lindsay had grown up and raised all those lucrative （赚大壬戋的）pigs. Lindsay was able to buy a house in Greenfield, paying for the entire purchase in cash. She did a bit of painting and then rented it out for $ 450 a month.
After finishing college,Lindsay plans to marry Heath McNeal, and use the income from her house to buy a block of land and build a new house ? But sheTl never move too far from home ? ”1 would like to stay in Greenfieldjshe said. M I just love everybody here.H
At her current rate, she'll probably be the town's biggest real estate tycoon （房土也丿“大亨）by the age of 25.
24. Lindsay earned her $40,000 by B. r unning a farm
D.
T aking pigs to enter competitions 25. What was Lindsay's original plan for her $40,000 ?
A. selling pigs
C. buying and selling A. To buy more pigs.
C.T o pay the cost of her education.
D.To hold a special wedding ceremony.
26.What do we know about Lindsay\ parents ?
A? They lived a poor life.
B.They helped Lindsay manage her money.
C? They didn't have a house of their own.
D.They wanted their daughter to move out.
27.We can inter from the passage that ____ .
A? Lindsay will become a real estate agent
B.Lindsay will buy a new house in another city.
C? Lindsay is good at investing her money.
D.Lindsay graduated from Ohio University with high marks.
c
Researchers are looking into new ways to generate efficient photovoltaic energy （光伏能源）and for this they have been inspired by the v-shaped posture of the Cabbage White butterfly.
Photovoltaic energy is the science behind solar power, where light is turned into electricity. It is a two-set process. Step one is a photoelectric effect, caused by sunlight. The second step is an electrochemical process, which generates an electric cunent.
To improve the collection of sunlight, a research group has been inspired by the resting posture of the Cabbage White butterfly. The species has a natural range across Europe, Asia, and North Africa. To many farmers, the butterflies are regarded as a pest; to others, they are pretty to look at. To one research group the butterflies are an inspiration.
The butterfly adopts a v-shape in order to heat up its flight muscles before taking off. By creating solar panels（太阳能电i也板）in this formation t scientists think that the quantity of power that a solar panel can produce can be in creased by around 50 percent.
The Cabbage White butterfly is different to many other butterflies in using the v-formation. On cloudy days butterflies need to wait to receive enough sunlight in order to fly. However, by using the v-posture, the Cabbage White butterfly is able to absorb more energy more quickly than other butterflies? In addition, the
butterfly can reflect sunlight from its wings, which allows its flight muscles to be warmed to an ideal temperature ?
The new research was conducted at the University of Exetefs Environment and Sustainability Institute (ESI) and the Centre for Ecology and Conservation. Discussing the findings with Laboratory Manager magazine, lead researcher Professor Tapas Mallick stated「Biomimicry (仿生学)in engineering is not new. However, this research shows pathways to develop low cost solar power that have not been done before. H
28.Which can be the best title for the text?
A. The future of solar power
B? The butterfly effect theory
C.Cool things about the Cabbage White butterfly
D.Butterflies contribute to solar power revolution
29.What posture of the Cabbage White butterfly is being adopted by scientists?
A. The flying posture?B? The resting posture?
C.The take-off posture.
D. The sleeping posture.
30.What is the main purpose of Cabbage White butterflies using the v-posture?
A. To look prettier B? To take a good rest.
C. To prepare for flight. D? To protect themselves?
31 .What is Tapas Mallick's attitude towards the research?
A. Positive?
B.Casual
C? Skeptical. D.Disapproving.
32. Where is the text most probably taken from?
A. A lesson plan.
B. A book review?
C? A science report. D. A personal diary?
D
The smell of dirty old socks leaves most people holding their noses? But scientists have discovered it is just the opposite for a certain pest. Researchers have found that the smell of old socks is actually extremely attractive to mosquitoes? D匚Fredros Okumu, head of the research project at Tanzania's Ifakara Health Institute, plans to use this new information to develop a device that will attract and trap mosquitoes. He hopes this unusual method will help prevent and fight malaria （疟疾）.
Malaria is a disease that is spread by infected mosquitoes. The disease can spread easily and quickly. One mosquito carrying malaria can infect lots of people.
Malaria can be prevented and treated. But many African nations don't have the funds to fight it. While the global infection rate of malaria is continuing to drop, there are still over 220 million cases of malaria each yea匚Nearly 800,000 of these cases result in death, the majority of them being children in Africa.
Many methods have already been developed to prevent human from mosquitoes, such as, bed nets and insecticide（杀虫剂）.But no such developments have been made to battle them outdoors. The smelly mosquito trap may be the answer. M The global goal of eradication （扌艮除）of malaria will not be possible without new technologies/1 said Okumu, who has been working on this project for two years.
Okumu mixed eight chemical compounds （化合物）to create the perfect smell to attract the mosquitoes into the trap. Then he experimented with poisons until he found one that could kill up to 95 percent of mosquitoes?And the tests showed that traps with the smell of human feet attracted four times as many mosquitoes as a human volunteer.
33? D匚Fredros Okumu wants to create a new device to .
A? prevent human from being disturbed by mosquitoes
B. help human fight against an awful disease
C? catch more mosquitoes to do his experiment
D.cure those people who have smelly feet
34.What does the third paragraph mainly talk about?
A? The reason why malaria can be prevented and treated?
B. What African people have done to fight malaria?
C? The current situation of malaria in Africa.
D.The reason why malaria has affected so many people in Africa.
35.Which of the following is TRUE according to the passage?
A? Bed nets and insecticide rarely work outdoors?
B. The chemical compounds used by Okumu are collected from smelly socks?
C? Dirty, old socks have been proved to be useful to kill mosquitoes?
D.Malaria will be eradicated soon by smelly mosquito traps.
第二节（共5小题；每小题2分，满分10分）
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
How to improve self-control
Self-control helps us in fighting temptations（诱惑）.The tips listed below will tell you how you can improve your self-control.
Be a Fighter
The first thing you need to know is you are a fighter and that you can fight absolutely anything. There is nothing in this world that a human mind cannot do if it decides to do so. 36
Know the strength of Will Power
Your will power is your biggest strength 37 There are many exercises that will help you strengthen your will power. A strong will power will help you stay away from what you know is wrong for you.
Say Goodbye to Pessimism
If you are a pessimist by nature, your self-control will work for you in the opposite direction. You will find yourself losing the battle even before you fight it. You need to understand that you can take up any challenge, however strong it is. Pessimism is like a virus, 38
Find “Good" Company
If you are trying to get rid of an addiction, find other people in your friends who would want to do the
same or who might provide you with the much-needed motivation, 39
Now that you know how to improve self-control, you can start applying these mind control tips in your daily life. 40 Keep at it and you might just notice some amazing changes in respect of your control over yourself.
A. The key is not to give up
B. Therefore, you need to train it properly.
C? Some people just carf t stay away from those wrong things.
D? This way, indirectly, you will be improving your self-control?
E.It'll keep on growing inside your mind unless you put a stop to it?
F.You just need to be a great fighter when you fight against certain issues.
G.It is these temptations that challenge our determination to do something.
第三部分：英语知识应用（共两节，满分45分）
第一节完形填空（共20小题：每小题1.5分，满分30分）阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）屮，选出可以填入空白处的最佳选项。
It was the last week of the summer holiday, and Robin was bored .His father , Leif,was also at 41 on
vacation. Leif suggested going sailing for a few days? Robin 42 at the idea?
It was a sunny afternoon ?Father and son _43_ food for the trip and then set sail.Robin was old enough to learn some seamanship .He listened patiently as his father _44— what to do. But as the boat hit the bigger
45_ in the open sea,the boy feel seasick and lay on a bed.
The sunset at 10:30 pm found the boat 46 into more terrible weather ?They'd be 47 to reach a port before dawn.Leif found that there was something wrong with the sail （帆）?He panicked and decided to_48_ it on his own. However,the sailboat shook _49_ and threw him into the water.In the cabin ,Robin
heard _50_ from his father Jn the water,he saw Leif .breathing _5l
in his red life jacket. u Dad,what shall I do?v Robin 52.
Robin dialed 112,the emergency number, but he was too far from Sweden to get a（n） 53_ ? Outside , Robin scanned the dark 54 wildly. His father had disappeared into the night.
The 55_ fell with a noise like thunde匚Remembering his seamanship ,56_ just s few hours earlier, Robin pushed the tiller（舟匕柄）over. The sail filled again. Robin swung the boat around, _57— east, toward Sweden.
Every few minutes, he checked his_58_ ? When Robin dialed 112 for the sixth time, he heard a woman answer: "Emergency service.^ After 1.5 hours, Robin heard the news : u Yo ur father is alive and well.”
The rescuers praised Robinself-control and _59_ decision to sail away for help? Leif\ praise is
generous. "Robin\ wonderful kid who 60_ that night, and he'll make a great man.^
41. A. sight B. risk C? work D. home
42. A.scared B. jumped C. cried D. stopped
43. A? bought B. ate C. consumed D. offered
44. A? decided B. warned C? explained D? learned
45. A. snow B. waves C. boats D. coral
46. A. looking B. diving C. struggling D.changing
47. A. lucky B. sad C. worried D. sick
4& A.care for B. search for C. play with D. deal with
49. A. slowly B. violently C. slightly D. gradually
50. A. screams B. voices C? stories D. songs
51. A. hard B. gently C. steadily D. normally
52. A. insisted B. begged C? ordered D. shouted
53. A. opinion B. image C. signal D. sign
54. A. bed B. street C. sea D? cabin
55. A. boat B. sail C. flag D. jacket
56. A. adventures B. lessons C.books D. challenges
57. A. standing B. walking C. heading D. facing
58. A. health B. oil C. watch D? phone
59. A. wise B. difficult C. foolish D?
temporary
60. A. gave up B.rang up C. dressed up ）D. grew up
第II卷
注意：将答案写在答题卡上。写在本试卷上无效。
第二节（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）或扌舌号内单词的正确形式。
A lawyer who came 61. ______ a big city went hunting in the countryside? He shot a bird, but it fell into a farmer\ field on 62. _______ other side of a fence （篱笆）? As the lawyer climbed over the fence, an elderly farmer walked up and asked him 63. ______ he was doing? When the lawyer said he wanted to get the bird
64. ______(hunt) by him, the old farmer replied, "This is my field, and you're not coming over here." The lawyer got angry and said, 'Tm one of the 65. ______ (good) lawyers in the countiy? If you don't let me get that bird, you 66. ____ (charge) and lose everything you own] The farmer smiled, "Well, generally, when people here cannot reach a(n) 67. _______ (agree), we follow the Three-Kick Rule. I first kick you three times and then you kick me three times, and so on, until someone gives up： Hearing that, the lawyer decided he could 68. ______ (easy) win and agreed. The lawyer nearly 69. ______ (give) up after the farmer gave him three good hard kicks? Then when he struggled 70. ____ (get) to his feet and said, “Now，iTs my turnthe old farmer smiled and said, "No, I give up. You can have the bird!"
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:在缺词处加一个漏字符号(人)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，并在该词下而写出修改后的词。
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。
A detective recently found that a well-dressed woman always went into a large store in Monday mornings. One Monday, there were few people in the shop than usual when the woman came in, so it was easier for the detective to observe him. The woman chose one of the most expensive dress and hand it to a shop assistant The shop assistant wrapped it up for her as quickly as possibly. Then the woman put the parcel under her arm and walked out the shop secretly without pay for it. When she was arresting, the detective found out that the shop assistant "gave" her mother to a free dress once a week.
第二节书面表达(满分25分)
假如你是李华，你所在的学校将组织全体师生去野营，请用英文写一封电子邮件，通知外教Tom
先生准时到学校集合，并告知他相关的注意事项。
1.集合时间：下周五早上七点钟；
2.集合地点：学校和平广场；
3.目的地：中山森林公园
4.注意事项：①提醉Tom先生穿戴休闲，方便活动②早餐，午餐，饮水，都有供应，无需自备
注意：1.词数100左右
2.可以适当增加细节，以使行文连贯;
3.邮件格式已经给出，不计入总词数。
高三刀考一答案
一?听力
1 ? 5. BBCCC 6-10.ABCAC 16-20.ABCCA
A 篇：21-23. CCB
B 篇：24-27. DCBC
C 篇：28-32. DBCAC
D 篇：33-35. BCA
E 篇：36-40. FBEDA
三.完形填空
四?语法填空
61 .from 62.the 63.what 64.hunted 65.best
66. will be charge 67.agreement 68.easily 69. gave 70.to get
五.短文改错
41-45DBACB 46-50CADBA 51-55ADCCB 56-60 BCDAD
1.in Monday morning in—>on
2.few people few -^fewer
3.to observe him him/her
4.dress —>dresses
5.hand it to hand-^handed
6.possiblyipossible
7.walked out 后加of
8.pay—paying
9.arresting—>arrested
高三年级英语试卷 I. Listening Comprehension Section A Directions: In Section A, you will hear ten short conversations between two speakers. At the end of each conversation, a question will be asked about what was said. The conversations and the questions will be spoken only once. After you hear a conversation and the question about it, read the four possible answers on your paper, and decide which one is the best answer to the question you have heard. 1. A. At a shop B. In a car C. In a plane D. On a farm 2. A. A travel agent B. An office secretary C. A sales manager D. A hotel receptionist 3. A. $2 B. $1.5 C. $3 D. $3.5 4. A. The next bus is coming soon. B. The bus will wait a few minutes at the stop. C. There are only two or three passengers on the bus. D. They can catch this bus without running. 5. A. She decided to paint it later. B. She finally had time to paint it. C.Someone painted it for her. D. Some friends will help paint it. 6. A. He wants to go early to avoid the traffic jam. B. He wants to get to the theatre early. C. He doesn’t know the way to the theatre.D. He doesn’t usually leave his office at 8:00.7. A. He is shy. B. He is heroic. C. He is dangerous. D. He is awkward. 8. A. It’s delayed. B. It’s overcrowded.C. It’s nearly empty. D. It’s cancelled.9. A. The assignment looks easy but actually it’s quite hard.B. The assignment is too difficult for them to complete on time.
武胜中学2013届补习班第二期第一次月考 化学试题 可能用到的相对原子质量：H:1 C:12 O:16 Si:28 F:19 S:32 K:39 Cu:64 第I 卷(选择题) 一、选择题：本题共7小题，每小题6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．化学与科学、技术、社会、环境密切相关。下列有关说法中不正确的是：( ) A ．厨房中燃气泄漏，立即打开抽油烟机排气 B ．减少燃煤的使用，改用风能、太阳能等能源，符合“低碳生活”理念 C ．在食品袋中放入盛有硅胶和铁粉的透气小袋，可防止食物受潮、氧化变质 D ．“血液透析”利用了胶体的性质 2．N A 代表阿伏加德罗常数，下列说法正确的是：( ) A ．分子数为N A 的CO 、C 2H 4混合气体体积约为22.4 L ，质量为28 g B ．已知2CO(g)+O 2(g) 2CO 2(g)；△H=-akJ ﹒mol -1 将2N A 个CO 与N A 个O 2混合充分反应放出akJ 的热量。 C ．用石灰乳完全吸收l mol Cl 2时，转移电子的数目是N A D ．常温下，0.1mol/LNa 2CO 3溶液中，含有阴离子的总数大于0.1N A 3．下列叙述或离子方程式书写正确的是 ( ) A. 将少量二氧化硫通入次氯酸钠溶液中：SO 2+H 2O+ClO -＝SO 42-+Cl -+2H + B. 向含有F e 2O 3悬浊液中通入HI 气体： F e 2O 3 + 6H ＋ = 2Fe 3＋ + 3H 2O C ．用惰性电极电解MgCl 2溶液：2Cl - + 2H 2O Cl 2↑+ H 2↑+ 2OH - D ．等物质的量的Ba(OH)2与(NH 4)2Fe(SO 4)2在溶液中反应： Ba 2＋＋2OH －＋2NH 4＋+SO 42－= BaSO 4↓＋2NH 3·H 2O 4．下列有关化学用语使用正确的是 ( ) A.HClO 的电子式： B.具有16个质子、 16个中子和18个电子的微粒是3216 S C.邻羟基苯甲酸的结构简式： D.乙烯的比例模型： 5．下列叙述错误的是 ( ) A ．把a L 0.1 mol/L 的CH 3COOH 溶液与b L 0.1 mol/L 的 KOH 溶液混合，所得溶液中一定 存在：c (K +)+ c (H +) = c (CH 3COO －) + c (OH － ) B ．氯水中：c(Cl －)＞c(H +)＞c(OH －)＞c(ClO －) C ．把0.1 mol/L 的NaHCO 3溶液与0.3 mol/L 的Ba(OH)2溶液等体积混合，所得溶液中一定存在：c (OH －) >c (Ba 2+)>c (Na +)> c (H ＋) D ．常温下，在pH=3的CH 3COOH 溶液和pH=11的NaOH 溶液中，水的电离程度相同 6．向一定量的NaOH 溶液中逐滴加入AlCl 3溶液，生成沉淀Al(OH)3的量随AlCl 3加入量的变化关系如图所示。则下列离子组在对应的溶液中一定能大量共存的是( ) A ．a 点对应的溶液中：Na ＋、Fe 3＋、SO 42-、HCO 3- B ．b 点对应的溶液中：Na ＋、S 2－、SO 42-、Cl －
2019届高三年级第一次月考物理试卷 一、选择题(共10小题，每小题4分，1—6单选，7—10多选，共40分) 1. 如图所示，A、B两质点同时同地沿同一直线运动，下列说法正确的是( ) A. A质点沿正方向做匀加速运动 B. B质点沿正方向先减速后加速 C. 经过4s，A质点的位移小于B质点的位移 D. 0~4s内，两质点间的距离先增大后减小 2. 测速仪上装有超声波发射和接收装置，如图所示，B为固定测速仪，A为汽车，两者相距670m，某时刻B发出超声波，同时A由静止开始做匀加速直线运动，当B接收到反射回来的超声波信号时，A和B相距710m．已知声速为340m/s，则汽车的加速度大小为（） A. 20m/s2 B. 10m/s2 C. 5m/s2 D. 无法计算 3. 在t=0时，A、B两物体在同一地点以相同的初速度沿同一方向运动，A物体 的v-t图象如图，B物体做匀减速直线运动，直到停止，两物体的位移相同， 下列说法正确的是( ) A. B运动的时间可能等于A B. 在途中B始终在A的前方 C. 在途中任一时刻两物体的速度不可能相同 D. 在途中任一时刻两物体的加速度不可能相同 4. “竹蜻蜓”是一种在中国民间流传甚广的传统儿童玩具，是中国古代一个很 精妙的小发明，距今已有两千多年的历史．其外形如图所示，呈T字形，横的一片是由木片经切削制成的螺旋桨，当中有一个小孔，其中插一根笔直的竹棍，用两手搓转这根竹棍，竹蜻蜓的桨叶便会旋转获得升力飞上天，随着升力减弱而最终又落回地面．二十世纪三十年代，德国人根据“竹蜻蜓”的形状和原理发明了直升机的螺旋桨．下列关于“竹蜻蜓”的说法正确的是（） A. “竹蜻蜓”从手中飞出直至运动到最高点的过程中，始终在加速上升 B. “竹蜻蜓”从手中飞出直至运动到最高点的过程中，始终在减速上升 C. 为使“竹蜻蜓”能以图示方向旋转上升，其桨叶前缘应比后缘略高 D. 为使“竹蜻蜓”能以图示方向旋转上升，其桨叶前缘应比后缘略低 5. 如图所示，斜面小车M静止在光滑水平面上，一边紧贴墙壁．若再在斜面上加一物 体m，且M、m相对静止，则此时小车受力个数为（） A. 3 B. 4 C. 5 D. 6 6．如图所示，一个“V”型槽的左侧挡板A竖直，右侧挡板B为斜面，槽内嵌有一个质量 为m的光滑球C，“V”型槽在水平面上由静止开始向右做加速度不断减小的直线运动的一小段时间内，设 挡板A、B对球的弹力分别为，下列说法正确的是（）
高三英语第一学期9月月考试卷 II. Grammar & Vocabulary Section A 25. A group of writers posted a letter on the website to accuse Baidu, China’s largest searc h engine, _____ copyright violation. A. over B. of C. against D. about 26. Tiger Mother argues that in Chinese culture____ is fun until you are good at it. A. anything B. everything C. something D. nothing 27. It is illegal to make _______ beggars on the streets that every citizen has the right to stop this crime. A. such little children B. such few children C. so little children D. so few children 28. Coca-Cola will invest more in China over the coming three years than they _____ in the entire period between 1979 and 2009. A. do B. did C. have done D. had done 29. US Vice- President Joe Biden ____ the local dishes in a small restaurant in Beijing, for he are almost everything. A. should have enjoyed B. would have enjoyed C. can’t have enjoyed D. must have enjoyed 30. We believe that the government in Beijing will provide migrant workers’ child ren with public education, _____? A. will it B. won’t it C. don’t we D. don’t they 31. Hans.J.Wegner, the first Danish designer to achieve worldwide fame for simplicity, always believes that Remove material____ it is not needed. A. unless B. so that C. where D. in case 32. Kids in the new century no lon ger take ____ their parents impose on him for granted. A. that B. which C. what D. whether 33. Wait at least 24 hours before you buy a big-ticket item, or you will make a purely emotional purchase___ you may regret later. A. which B. for which C. about which D. at which 34. The elimination of Bin Laden hardly eliminates the threat of terrorism, _____ the lessening of security procedures. A. it will nor lead to B. nor it will lead to C. it nor will lead to D. nor will it lead to 35. The research, ____ by the end of this year, will pave the way for future development. A. to be concluded B. to conclude C. concluded D. have concluded. 36. People still lack knowledge about what can be recycled and what cannot, especially when it comes to _____ kitchen garbage. A. sort B. sorting C.sorted D. having so rted 37.________, Harry Porter is no longer a boy wizard but a responsible and mature young man.
银川一中2012届高三年级第一次月考 英 语 试 卷 2011.08 命题教师：郑晓红、尤春华 第Ⅰ卷 第一部分：听力（共两节，满分30分） 做题时，先将答案标在试卷上。录音内容结束后，你将有两分钟的时间将试卷上的答案转涂到答题卡上。 第一节 （共5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 man mean? A. He wants to get something to eat immediately. B. He wants to know when the game will be over. C. He doesn’t know where he can get something to eat. 2. When will the lecture begin according to the man? A. At 12:30 B. At 1:00 C. At 2:30. 3. Who has the woman speaker’s camera now? A. Tina B. Mary. C. Jack 4. What’s the probable relationship between the speakers? A. Passenger and bus conductor. B. Policeman and driver. C. Husband and wife. 5. What can we learn from the conversation? A. The man likes Mr. Zhang’s class very much. B. The man needn’t borrow the notes at all. C. The woman didn’t make notes at all. 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，各小题给出5秒钟的作答时间。每段对话或独白读两遍。 听第6段材料，回答第6至7题。 6. How late was the delivery? A. 3 hours. B. 4 hours. C. 5 hours. 7. What does the woman promise to do? A. Refund the man his money. B. Deliver on time next time. C. Offer the man a free delivery. 听第7段材料，回答第8至9 题。 8. What does the woman do on weekends? A. She does some reading. B. She helps her father. C. She goes to the beach. 9. When does the man sing and tell stories in the camp? A. In the morning. B. In the afternoon. C. In the evening. 听第8段材料，回答第10至12题。 10. Where is the woman going? A. To the classroom. B. To the library. C. To the bookstore. 11. What does the man advise the woman to do? A. Learn reading skills from the native speakers. B. Talk with the native students out of class. C. Avoid looking up words in the dictionary too often. 12. What is the woman trying to do? A. Adjust the situation there. B. Avoid attending class discussions. C. Learn more about reading skills. 听第9段材料，回答第13至16 题。
浙江省慈溪中学2013届高三第一次月考考试 英语试卷 第二部分：英语知识运用（共两节，满分30分） 第一节：单项填空（共20小题；每小题0.5分，满分10分） 从A、B、C、D四个选项中，选出可以填入空白处的最佳答案，并在答题卡上将该项标号涂黑。 1.Tuesday being _________ windy, cold day in Beijing, the President tours _______ Forbidden City in Beijing, wearing ________ blue shirt with no tie and a casual leather jacket. A. a; the; the B. a; /; a C. /; /; a D. a; the; a 2. Nick is looking for another job because he feels that nothing he does ______ his boss. A. serves B. satisfies C. promises D. supports 3. He is afraid to face the difficulty he thinks he?ll have _________ the driving test tomorrow; he finds it difficult _________ rid of the worries. A. passed; got B. passing; to get C. to pass; getting D. in passing; in getting 4. For some time, Chinese people, under the leadership of CPC, ________ the contents of the Scientific Development Concept in the course of practicing socialism in China. A. had been improving B. have been improving C. were improving D. improved 5. All the people present agreed that the matter required ___________. A. to look into B. being looked into C. to be looked D. looking into 6. Victor apologized for _________ to inform me of the change in the plane. A. his being not able B. him not to be able C. his not being able D. him to be not able 7. Five years later, he returned home, his character greatly _________. A. changed B. changing C. having changed D. was changed 8. He is often listened __________ English songs, but this time we had him _________ a Russian song. A. to to sing; sing B. to sing; to sing C. sing; to sing D. sing; sing 9. It?s said that in the sea the fisherman caught a big fish ________. A. alive B. lively C. live D. living 10. This restaurant wasn?t _________ that other restaurant we went to. A. half as good as B. as half good as C. as good as half D. good as half as 11. When you are done with the book, just give it to Lucy or Helen or ________. A. wherever B. whoever C. whatever D. however 12. All the settlers nearby demanded that the nightclub _______ away as soon as possible because of the loud noise at night.
2019届浙江省高三上第一次月考历史试卷【含答案及 解析】 姓名___________ 班级____________ 分数__________ 一、选择题 1. 樊树志在《国史十六讲》中说：“ 政治与血缘的结合 , 看似牢不可破 , 其实不然。既然周天子授土授民给诸侯叫做‘ 建国’, 诸侯授土授民给卿、大夫叫做‘ 立家’, 因此对于士、庶民而言 , 就有‘ 国’ 与‘ 家’ 的对立 , 他们把自己的宗族称为 ‘ 家’, 只知效忠于‘ 家’, 而不知效忠于‘ 国’ 。” 材料表明 A ．分封制隐含着国家分裂割据的因素 B．宗法制与分封制是互为表里的关系 C．宗法制是古代中国政治制度的核心 D．分封制在历史上的作用是弊大于利 2. 春秋初诸侯遍行采邑（封地），中后期始行县—郡制度，“ 上大夫受县，下大夫受郡” 。战国时边地繁荣，始于郡下设县，形成郡—县两级制。以上历史现象产 生的根源是 A ．诸侯争霸的推动 B．铁犁牛耕的使用 C．分封制走向崩溃 D．法家思想的推广 3. 自秦朝以后，皇帝为了加强专制主义，不断改革中央机构。下列能正确反映汉、唐、明、清四朝中枢演变过程的是 A ．世官制——察举制——科举制——九品中正制 B．都察院——提点刑狱司——御史台——刺史制度 C．分封制——郡县制——行省制——改土归流 D．内朝或中朝——三省六部制——内阁制度——- 军机处
4. 宋人吴处厚《青箱杂记》载：“ 岭南谓村市为虚，柳子厚《童区寄传》云：‘ 之虚所卖之。’ ……盖市之所在，有人则满，无人则虚，而岭南村市满时少，虚时多，谓 之为虚，不亦宜乎？” 从中可以获悉当时 A ．农村集市开始出现 B．农村集市贸易发展 C．草市经营有时空限制 D．商业市镇逐渐兴起 5. 明中叶起，松江“ 布被天下” 的局面真正呈现出来，远销全国各地和海外。但是，江南的棉纺织行业却并未出现手工工场这种集中生产方式。究其原因，可能是 A ．棉纺织业出现较晚技术不够成熟 B．小农家庭副业是棉纺织业的主体 C．棉纺织品易损耗不能够集中生产 D．棉花种植分散使集中生产成本高 6. 据道光《苏州府制》记载，晚明苏州府“ 聚居城郭者十之四五，聚居市镇者十之三四，散处乡村者十之一二” 。该史料用来研究明清时期的中国社会，可以得出的最完整 的结论是 ①商品经济发展的速度加快②农村人口向城市流动增多 ③市民阶层已经有相当数量④雇佣劳动的出现具备可能 A ．①②③④ B．①②③ C．③④ D．①②④ 7. 以下观点中，与中国历代王朝基本的经济政策不相符合的有① “ 农为天下之本务，而工贾皆其末也” ② “ 农不出则乏其食，工不出则乏其事，商不出则三宝绝，虞 （山泽资源）不出则财匮少” ③ “ 待农而食之，虞（山泽资源）而出之，工 而成之，商而通之。” ④ “ 舍本逐末，贤者所非。日富岁贫，饥寒之渐，故商贾之事，阙而不录” A ．①② B．③④ C．②③ D．①④ 8. 斯塔夫里阿诺斯在《全球通史》中说：秦朝灭亡后“ 法家学说信誉扫地，而儒家学说被长期推崇为官方教义。不过，从某种意义上说，这也是法家的一个胜利” 。“ 这
2019高三英语上学期第一次月考试题 （考试时间：120分钟试卷满分：150分） 注意事项： 1. 答卷前，考生务必将自己的姓名、准考证号填写在答题卡上。 2. 回答选择题时，选出每小题答案后，用铅笔把答题卡上对应题目的答案标号涂黑。如需改动，用橡皮擦干净后，再选涂其他答案标号。回答非选择题时，将答案写在答题卡上，写在本试卷上无效。 第一部分单项填空（共15小题；每小题1分，满分15分) 请从A、B、C和D四个选顶中选出可以填入空白处的最佳选项，并在答题卡上将该选项的标号涂黑。 例：A computer can only do ______ you have instructed it to do. A. how B. after C. what D. when 答案是C。 1. When ______ to danger and conflict, men tend to increase blood pressure, feeling nervous or anxious. A. expose B. exposed C. to expose D. exposing 2. He felt satisfied; he could the way she looked that if he pushed her hard enough she would come in with him. A. care about B. believe in C. tell by D. give up 3. Reduce it ______ half each month and before you know it, you will not be thinking
2018届高三第一次月考 英语试题 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14页，第Ⅱ卷第15至第16页。全卷满分150分，考试时间120分钟。 第Ⅰ卷(共115分) 第一部分听力（共两节，满分30分） 做题时，先将答案标在试卷上。录音内容结束后，你将两分钟的时间将试卷上的答案转涂到答题卡上。 第一节听下面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. Why does the man like his new room? A. It is near the friends’ flats. B. It is close to the school. C. It is larger than the old one. 2. How much will the man pay for two general tickets and two student tickets? A. $30． B. $40. C. $20． 3. What do we learn about Jack? A. He worked there as a boss. B. He spoke to the boss. C. He gave orders like a boss. 4. What does the woman suggest? A. The radio batteries have been replaced. B. They should get a new radio. C. They don’t really need to hear the radio. 5.What do we learn about the woman? A. She should plan for a good dictionary. B. She can’t afford any dictionary. C. She has a better dictionary. 第二节听下面5段对话或独白。每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。每段对话或独白读两遍。听第6段材料，回答第6至8题。 6. What kind of color TV was the man going to buy? A. A small one. B. A big one. C. A cheap one. 7. What kind of color TV set does the woman suggest the man should buy? A. A cheap one. B. A small one. C. A big one.
六安一中2013届高三年级第一次月考 语文试卷 时间：150分钟分值：150分 第I卷阅读题（共66分） 一、论述类文本阅读（9分） 阅读下面的文字，完成1~3题。 舜文化 ①《尚书》云：?德自舜明。?《史记》载：?天下明德皆自虞帝(虞舜)始。?舜帝是?德?的化身，简言之，舜文化就是舜帝身体力行所创造的道德文化，它是一种原生性的道德本体文化。因此，舜帝是中国道德文化的鼻祖。 ②舜所处的时代，是中国社会发展的转折时期。在这个时期，东夷集团与华夏集团的融合已经完成，亦即炎、黄民族的融合已经完成，在部落联盟的体制沿袭了数千年后，国家已经初步形成；作为个体的人，也已经进入了由部落联盟——诸侯国组合起来的?古国?大社会。因此，在社会生产之中，需要有一种不同于以往的关系和双方都能接受和遵守的准则，才能维护诸侯国之间和人与人之间的团结与和谐。作为诸侯国联盟首领的舜，正是适应了这一社会发展的需要，身体力行地创造、想方设法地推行了这些准则，并使整个社会都遵守这个?道德?规范，成为人类由文明产生阶段进入文明发展阶段的重要标志。 ③文化的发展具有历史的继承性。我们说孔子是儒文化的创始人，然而，孔子的功绩在于集文化之大成；儒家文化实际上只是孔子对舜文化的继承和弘扬；纵使是儒文化的核心内容之?仁?，也只是孔子在总结商周文化基础之上的画龙点睛。儒学三重道德——人伦道德、社会道德、宇宙道德的源头来自于舜帝的道德文化。楚简中的《唐虞之道》写道：?爱亲忘贤，仁而未义也；尊贤遗亲，义而未仁也……爱亲尊贤，虞舜其人也。?由此可以证实，儒家三重道德的基本构架就是发轫于舜帝所创建的道德文化。 ④各民族的文化都以本民族的特有形式发展起来，形成本民族的传统。舜文化产生在炎、黄民族融合之后，所以，它代表的是炎黄子孙的共同利益，这也是舜文化得以继承和不断弘扬的原因。舜帝虽然居?三皇五帝?之末，但是，舜帝开创了?德治?文明的崭新时代，具有里程碑的作用和历史意义。 ⑤以农耕文化为内涵的炎帝文化，以政体文化为内涵的黄帝文化，以道德文化为内涵的舜帝文化，这是中华文化的三块里程碑。农耕文化、政体文化、道德文化是中华远古文化的源头。又特别以舜文化为博大精深，它涵盖了社会、自然两大学科，其内容包括了政治、经济、军事、教育、文艺、民族关系等各个领域。舜文化是以儒家文化为核心的中华民族传统道德文化的源头。唐代著名思想家韩愈在他的《原道》一文中梳理儒家的传授关系时说，是?舜以是传之禹，禹以是传之汤。汤以是传之文武周公，文武周公以是传之孔子，孔子传之孟轲?。孔孟传之于后人。 ⑥中华传统文化之根脉是舜文化。舜文化是儒家道德价值之根脉。从这个意义上说，没有
浙江省杭州市建人高复2019届高三英语上学期第一次月考试题 本试卷分第I卷（选择题）和第II卷（非选择题）两部分。 第I卷 第一部分听力（共两节，满分30分） 做题时，先将答案标在试卷上。录音内容结束后，你将有两分钟的时间将试卷上的答案转涂到答题卡上。 第一节（共5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称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.When does the man say the lecture will begin? A.At 7：30 B.At 8：00 C.At 7：40 2.Where does the conversation most probably take place? A.At the post office B.At the airport C.At the hospital 3.What are the two speakers talking about?? A. A big travel company B. A job opportunity C.An inexperienced salesman 4.What does the man mean? A.Bill isn’t ready to help others B.Bill doesn’t want to listen to him C.Bill is actually in need of help himself 5.What does John think of his holiday? A.Wonderful B.Awful C.Boring 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.Why didn’t the woman show up for class? A.She met a traffic accident B.She talked with the man C.There was something wrong with her car 7.What will the woman probably do? A.Have her car repaired B.Rent a car C.Buy a new car
上海市2018届高三 英语12月考试卷 II. Grammar and Vocabulary Section A Directions: Read the following passage. For some blanks, there is a word given in the brackets. Fill in each of these blanks with the proper form of the given word. Fill in the other blanks with words that are correct in structure and proper in meaning. (A) Mr. Briggs got a job 25 an insurance pany(保险公司) after he left school and went around visiting people in their homes 26 (sell) them life insurance. One day, after he 27 (work) for the pany for about a year, the insurance manager sent for him and said, “Mr. Briggs, I have been looking 28 your record as a salesman with our pany, and there is one thing 29 surprises me about it. Why have you been selling insurance only to people over 95 years old, and why have you been giving them such generous conditions? You’ll ruin our pany 30 you go on like that. ” “Oh, no, sir,” answered Mr. Briggs at once, “Before I started work, I looked at the figures(数字) for deaths in this country 31 the past ten years, 32 I can tell you that few people die at the age of 95. ” (B) He is the man who for many people has been a role model. Now your __33__ (big) hero deserves a special day when you can
绝密★启用前 宁夏育才中学2019届高三年级第一次月考 英语 本试卷分第I卷（选择题）和第II卷（非选择题）两部分。考生作答时，将答案答在答题卡上, 在本试卷上答题无效。考试结束后，将本试卷和答题卡一并交回。 注意事项： 1.答题前，考生务必先将白己的姓名、准考证号填写在答题卡上，认真核对条形码上的姓名、准考证号，并将条形码粘贴在答题卡的指定位置上。 2.选择题答案使用2B铅笔填涂，如需改动，用橡皮擦干净后，再选涂其他答案的标号；非选择题答案使用0.5亳米的黑色中性（签字）笔或碳素笔书写，字体工整、笔迹清楚。 3.考生必须按照题号在答题卡各题号相对应的答题区域（黑色线框）内作答，写在草稿纸上、超出答题区域或非题号对应的答题区域的答案一律无效。 4.保持卡而清洁，不折叠，不破损。 第I卷（选择题） 第一部分：听力理解（共两节。满分30分） 做题时，先将答案标在试卷上。录音内容结束后，你将有两分钟的时间将试卷上的答案转涂到答题卡上。 第一节（共5小题：每小题1.5分，满分7.5分） 听下面五段对话。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下题。每段对话仅读一遍. 1 ? What does the woman mean? A.The man can't smoke at all. B.The man can smoke? C?Neither of them can smoke here? 2? Where does the woman want to go? B.The Art Museum.
天津市蓟县一中2013高三（上）第一次月考数学试卷（理科） 参考答案与试题解析 一、选择题（共8小题，每小题4分，满分32分） 1．（4分）在复平面内，复数对应的点位于（） A．第一象限B．第二象限C．第三象限D．第四象限 考点：复数代数形式的乘除运算． 专题：计算题． 分析： 利用复数代数形式的乘除运算将复数+（1+2i）2转化为a+bi（a，b∈R），即可． 解答： 解：∵==， （1+2i）2=1﹣4+4i=﹣3+4i， ∴+（1+2i）2=（﹣3）+（+4）i=﹣+i， ∴复数+（1+2i）2对应的点位于第二象限， 故选B． 点评：本题考查复数代数形式的乘除运算，属于基础题． 2．（4分）（2012?青岛二模）已知函数，则 的值是（） A．5B．3C．﹣1 D． 考点：函数的值． 专题：函数的性质及应用． 分析：本题是分段函数求值，首先弄清f（x）在不同区间有不同对应法则，找准对应区间代入计算即可． 解答：解：∵f（1）=log21=0，∴f（f（1））=f（0）=3﹣0+1=2， 又∵，∴=+1=+1=2+1=3， ∴=2+3=5． 故选A． 点评：本题考查分段函数求值问题，关键由自变量找对应区间，由内到外逐一确定适用区间，即可利用相应对应法则求值．
3．（4分）（2012?九江一模）已知函数，则该函数是（） A．非奇非偶函数，且单调递增B．偶函数，且单调递减 C．奇函数，且单调递增D．奇函数，且单调递减 考点：奇偶性与单调性的综合． 专题：证明题． 分析：由题意，根据题设条件及选项可判断出，可先由定义判断函数的奇偶性，再由函数的单调性的判断方法判断出函数是一个增函数，由此可以判断出正确选项 解答：解：此函数的定义域是R 当x≥0时，有f（x）+f（﹣x）=1﹣2﹣x+2﹣x﹣1=0 当x＜0时，有f（x）+f（﹣x）=1﹣2x+2x﹣1=0 由上证知，此函数是一个奇函数， 又x≥0时，函数1﹣2﹣x是一个增函数，最小值是0；x≤0时，函数2x﹣1是一个增函数，最大值为0， 所以函数函数在定义域上是增函数 综上，函数在定义域上是增函数，且是奇函数 故选C 点评：本题考查函数奇偶性与单调性的判断，熟练掌握函数奇偶性判断方法与函数单调性的判断方法是解题的关键． 4．（4分）（2012?湘潭三模）下列说法中，正确的是（） A．命题“若am2＜bm2，则a＜b”的逆命题是真命题 B．命题“?x∈R，x2﹣x＞0”的否定是“?x∈R，x2﹣x≤0” C．命题“p∨q”为真命题，则命题“p”和命题“q”均为真命题 D．已知x∈R，则“x＞1”是“x＞2”的充分不必要条件 考点：命题的真假判断与应用． 分析：A先写出逆命题再利用不等式性质判断；B中“?x∈R，x2﹣x＞0”为特称命题，否定时为全称命题； C命题“p∨q”为真命题指命题“p”或命题“q”为真命题，只要有一个为真即可； D应为必要不充分条件． 解答：A“若am2＜bm2，则a＜b”的逆命题是“若a＜b，则am2＜bm2”，m=0时不正确； B中“?x∈R，x2﹣x＞0”为特称命题，否定时为全称命题，结论正确； C命题“p∨q”为真命题指命题“p”或命题“q”为真命题，只要有一个为真即可，错误； D应为必要不充分条件． 故选B． 点评：本题考查命题真假的判断，问题涉及不等式性质、复合命题真假判断、全称命题及特称命题、