2011年广西玉林市中考真题(word版含答案)

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2011年广西省中考英语真题

2011年广西省中考英语真题

2011年广西省中考英语真题二、单项选择(每小题1分,共15分)请从各题所给的四个选项中选出最佳答案。

26. — What can you see on the desk?— I can see _______ pen.A. theB. aC.不填D. an27. Scott usually gets up at 6:10, then he cleans _______ room.A. heB. hisC. himD. himself28. My _______ name is Guo Ping. We are in the same school.A. friendB. friendsC. friend’sD. friendly29. Wang Lin reads books at the school library _______ the afternoon every day.A. ofB. onC. atD. in30. The bell is ringing. Hurry up, ________ you’ll be late for class!A. andB. butC. whileD. or31. The population of China is ________ than that of any other country in the world.A. largeB. smallC. largerD. smaller32. He is ________ to make money to support his parents.A. old enoughB. enough oldC. young enoughD. enough young33. We will have finished ________ Unit 15 by April. We can review all the lessons.A. learningB. learnC. learnedD. to learn34. As students, we ________ study hard to make our country more beautiful and stronger.A. shouldB. mayC. canD. could35. — Your shoes look so cool. Where ________ your shoes ________?— Shanghai.A. is, made ofB. were, made fromC. was, made inD. are, made in36. — How was your weekend?— We ________ great fun playing in the park.A. haveB. wereC. hadD. has37. — Could I speak to Tom?— Speaking. ________?A. Who is thisB. Who is thatC. Who are youD. Who is Tom38. Everyone is here. Let’s ________ our class now.A. beginB. beganC. beginningD. to begin39. Not only Lucy’s brothers but also Lucy herself ________ living in China now.A. enjoyB. enjoysC. enjoyingD. enjoyed40. My sister isn’t in. ________ she comes back, I’ll l et her call you back.A. WhileB. UntilC. BeforeD. When三、情景交际(每小题1分,共5分)根据对话内容及所给选项完成对话(有两个多余的选项)。

英语_2011年广西玉林市、防城港市中考英语试卷(含答案)

英语_2011年广西玉林市、防城港市中考英语试卷(含答案)

2011年广西玉林市、防城港市中考英语试卷二、语言知识运用(共25分)(一)单项选择(每小题1分,共15分)(A)从各小题所给的A、B、C、D四个选项中,选出最佳答案.1. Yesterday we went to__________ amusement park.__________ park was very crowded.()A a;TheB an;TheC an;/D the;The2. Mom,I am thirsty.Where is __________ cup?Is this __________?Yes,thank you.()A mine;yoursB my;yourC mine;yourD my;yours3. Excuse me.Is there a library around here?Yes.It's __________ the restaurant __________ the supermarket.()A between;andB between;orC across;fromD next;to4. __________ is our national ball.Deng Yaping won several gold medals in this ball game.()A B C D5. Jason is __________ than most of kids in my class.He is very active.()A outgoingB more outgoingC much outgoingD the most outgoing6. Would you mind __________ your bike?Sorry.I'll do it right away.()A to moveB to makeC movingD making7. I'm not good at English.I think it's not easy __________ foreign language well.()A learnB to learnC learnedD learning8. Where would you like to go on vacation?I d like to go﹣﹣﹣﹣﹣﹣﹣.()A somewhere relaxingB relaxed somewhereC somewhere relaxedD relaxing somewhere9. __________ it is very late,__________ my mother is still at work.()A Although;butB Although;andC Although;/D Although;or10. Can I take Lisa to the aquarium tomorrow?If she __________ there,she __________ a good time.()A goes;hasB will go;hasC will go;will haveD goes;will have11. I love people __________ are polite and hard﹣working.()A whatB whoC whoseD where12. Could you tell me __________?Certainly.In half an hour.()A when will the train arriveB when the train will arriveC when would the train arriveD when the train would arrive13. __________ the program,I'm beginning to understand my Chinese roots and I have so many memories of China to take with me.()A Thanks toB So farC So thatD Such as14. Bob used to be a"problem child",but his mother was very patient and didn't ________ trying to help him.()A give outB give awayC give upD put up15. I'm really ________,because my backpack is lost.()A sadB angryC worriedD serious二、完形填空16. This is Red Star Town.My grandfather has lived here all his life.He(1)_______my grandmother here and they got married.Red Star Town was called Taping Town before.The government started (1)_______the wooden houses in this area when the Red Star Town underground station was built.(1)_______June 2000, Taping Town has become a history.My grandfather missed many things about Taping Town.(1)_______ in the small town knew him well.They all liked him because he used to be a good (1)_______in a hospital.Now he is old and stays at home.In the past, there were (1)_______stone and wooden houses around here.Also, there were many big trees.Now new (1)_______are here and there.The streets are wide and clean.There are all kinds of shops and you can buy anything (1)_______.My grandfather is happy that life has improved so much, (1)_______he still feels lonely because he really misses everything in the past.Many of his friends moved away because the government let them(1)_______in new apartments in new towns.The old town is still beautiful in his heart though it has disappeared(消失).(1)A meetB metC meetingD meets(2)A pull downB put upC to pull downD to put up(3)A AtB ForC SinceD On(4)A SomeoneB NobodyC SomebodyD Everyone(5)A doctorB pilotC teacherD actor(6)A a lotB muchC lots ofD lot of(7)A houseB buildingsC buildingD hotel(8)A easyB difficultC hardD early(9)A orB butC asD so(10)A liveB livedC livingD to live三、阅读理解17. July 1st,2011 is the 90tℎ birthday of the ChineseCommunist Party(中国共产党).If someone asks me what the Party is in my heart,I will be proud to say that Party is a flying flag52.In recent years,China's High﹣Speed Railway(高铁)has developed fast.On July 1st,2010,the 301﹣kilometer Shanghai﹣Nanjing High﹣Speed Railway began operation(运行)with a designed speed of 350kilometers an hour.53.Li Na is a lovely girl from Wuhan.She is a tennis player.She won the Champion in France Open in June,2011.Chinese people all take pride in her.We all love her.54.Wang Xu and Liu Gang were invited to perform in Beijing at CCTV's Spring Festival Show.They have become famous since that night.Before they were popular,both ofthem had done all kinds of jobs including farmer,builder and so on.55.Food safety(安全)becomes a hot topic people often talk about.People now all care about the food they eat every day.Since the colored﹣bread event happened,people have paid more attention to the safety of food.We hope such an event won't take place again.(51)________(52)________(53)________(54)________(55)________.18. How do people pass on messages?When you write a letter or make a telephone call,your words carry a message.People communicate with words.Do you think you can communicate without words?Tears(泪)in your eyes tell others that you are sad.(56)________When you put up your hand in class,the teacher knows you want to say something or ask questions.You shake your head,and people know you are saying no.(57)________Other things can also give some information.For example,a sign at the bus stop helps you to know which bus to take.A sign on the wall of your school helps you to find the library.(58)________There are a lot of signs around you and you receive messages from them all the time.People can communicate in many other ways.An artist can use his pictures to tell about beautiful mountains,about the blue sea and many other things.(59)________They also tell about people and their ideas.Books,magazines,TV,radio and movies all help us to communicate with other people.They all help us to know what is going on in the world.them.And he was often visited.It took him much time to meet them.Some visitors talked much with him and at last he didn't like it.He told his servant(小说)to stop the strangers from troubling him.One morning he was writing a novel when the door was knocked at.He hoped to finish writing it as soon as possible and he had no time to meet anybody.He told the servant hedid not want to be troubled.The servant opened the door and found it was Mr.Baker, oneof Mr.Read's old friends."Is Mr.Read at home, Mabel? "asked Mr.Baker.She wanted to let him in but suddenly(突然)remembered what she was told."Sorry, Mr.Baker, "said the servant."He's gone out.""Where has he gone? ""I don't know.""When will he come back? ""Sorry, he didn't tell me about it."Mr.Baker understood his friend wouldn't see him.He got mad and left.That afternoon Mr.Read finished his novel.He felt sorry for Mr.Baker and wanted to ________ to his old friend.He got there and shouted, "Is Mr.Baker at home? "Mr.Baker heard it was his friend.He remembered what happened that morning.He didn'topen the door and answered, "Sorry, I'm not in.""I have heard it's you, Mr.Baker." "I believed your servant this morning, 99 said Mr.Baker."But you don't believe your friend now!(1)According to the passage,Mr.Read was________.A a waiter .B a writer .C a worker .D a servant.(2)What does the underlined word"apologize"mean in Chinese?________A 道歉.B 挑战.C 回答.D 邀请.(3)From the story we can guess Mr.Baker felt________because his old friend didn't let him in.A happy .B surprised .C sorry .D angry.(4)Which statement is true?________A Mr.B The servant didn't know Mr.C Mr.D Mr.20. Every day, we can see ads all around us.Some are in English, others are in Chinese.Look at your own bags and clothes.Often bags and clothes show the name of the company that made them.This is a popular form(形式).A special picture or symbol called logo(标识)is sometimes used.Logos appear on many products.They are popular because when you see a logo, it is difficult to forget that product or company.All ads are designed to make people buy a product.It is common to see ads on TV and hear them on radio.Most ads are very short.Sometimes the advertisers(广告人)use a short sentence that is easy for people to say and remember.Li Ning, for example, has a simple sentence that is used all over China, "Everything is possible".Ads also use funny situations sometimes.An ad for a kind of ice cream, for example, might show a group of young people who are having fun.The young people are all eating the ice cream.Advertisers are saying to you, "Why don't you buy this kind of ice cream and be like these people? You can be young and modern."You might think that ads are not aimed at you, but the next time you buy ice cream, ask yourself this question; why am I buying this special product?(1)From the passage,we know that________.A all the ads around us are written in English.B many clothes have the name of the company that made them.C most ads are very long.D eating ice cream can make a person young and modern.(2)Advertisers would like to use the logos that are________.A easy to forget .B difficult to understand.C easy to remember .D difficult to remember.(3)How many ad examples are there in the second paragraph(段落)?________A One.B Two.C Three.D Four.(4)The passage mainly tells us about________.A ads around us .B logos around the world.C products in our dailylife . D disadvantages of ads.四、情景交际21. A:Good morning,Bill.B:Hi,Nick.A:(1)_______B:Yes,I like playing basketball.How often do you exercise?A:(2)_______B:Do you get up early in the morning?A:Yes,I get up at 6:30 every morning.And then I play basketball for half an hour.B:(3)_______A:I go to bed at 10:00.(4)_______B:I see.You look strong.Let's play basketball together tomorrow morning,OK?A:All right.(5)_______See you.B:See you tomorrow.五、单词填空22. Born in the city,we regard the country life as something far away.We are used to everything in the city.We are even getting used to the noises and (73)________(污染)in the city.It has become a part of our life.I have (74)________(从不)been to the country.Nature is a word strange to us.This (75)________(夏天)I had the opportunity to go with my parents on a visit to countryside.For the first time in my life I have the experience with the country life.Here I (76)________(意识)what a life of nature is.This is a small(77)________(乡村)far from cities.It isat the foot of a mountain.The life there is simple.It is (78)________(不同的)from the city life.There are few cars or other traffic on the way.The air is fresh.The sky is high.The people are friendly.They are not as busy as the people in the big city.(79)________(到处)you can find people bathing in the sun.They (80)________(喝)clean water.The water comes from the mountain.They (81)________(享受)the quiet life very much.What's more,there you can hear the sound of nature.You can see the children playing with water in the river and the dogs running after the people.All these make a (82)________(极好的,精彩的)picture of countryside.How I love the country life!六、综合填空23. In some science fiction movies,people in the future have their own robots.They are just like humans.These robots (83)________(use)by the people to do the houseworkand the most unpleasant jobs.Some scientists (84)________(mink)that there will be such robots in the future.However,they agree it may take hundreds of years.Now scientists (85)________(try)to make robots look like people and do the same thing as us.Over the years,Japanese companies (86)(________make)robots walk and dance already.But scientist James White (87)________(disagree).He thinks that it will be difficult for a robot to do the same thing as a person.Once he gave us an example.It was easy for a child to wake up while he (88)________(sleep)and know where he was,but robots couldn'tdo this.But other scientists disagree.They think that robots (89)________(be)able 10 talk to people in 25 to 50 years.Scientists are not just trying to make robots look like people.Several years ago,some robots (90)________(invent).Those robots looked like huge arms.They did the simple jobs over and over again.People would not like to do such jobs and would get bored.In the future,new robots will have many shapes.Some might even look like snakes.After an earthquake,a snake robot could help look for people under buildings.That may not seem possible now,but computers and space rockets (91)________(seem)impossible a hundred years ago.We don't know what(92)________(happen)in the future.Let's wait!七、书面表达24. 今天是三月五日,星期六,学雷锋日.你和同学们在陈老师带领下分头去了公园、养老院、医院做好事.请根据所给内容写一篇日记.内容要点:1.天气晴朗.2.7:30在学校门口集中.3.陈老师把我们分成三组.4.第一组帮助清洁城市公园;第二组去养老院看望老人;我在第三组,去医院看望生病的小孩.5.虽然很累,但觉得很愉快.提示词:要求:1.注意日记的格式和时态.2.包括所有内容要点,用上所给的提示词,可以适当发挥.3.语句通顺、语法正确,80词左右.4.文中不得出现考生真实的姓名、地点和所在的学校的名称.2011年广西玉林市、防城港市中考英语试卷答案1. B2. D3. A4. D5. B6. C7. B8.9. C10. D11. B12. B13. A14. C15. C16. BCCDACBDBA17. D,E,A,C,B18. C,A,D,B19. BADC20. BCBA21. A,G,C,F,B22. pollution,never,summer,realize,countryside,different,Everywhere,drink,enjoy,wonderful23. are used,think,are trying,have made,disagrees,was sleeping,will be,wereinvented,seemed,will happen24. Saturday,March 5th SunnyIt was fine today.My classmates and I met at the school gate at 7:30.(时间地点)Mr.Chen divided us into three groups.Group One helped clean up the city park.They made it cleaner and tidier.【高分句型一】Group Two went to the old People's home to visit the old people.They played chess with them and performed a play for them.Theold people were very happy.I was in Group Three,I went to visit the sick children in the hospital with my classmates.We sang songs for them and told them some stories to cheer them up.(分组)I came home at 5:30,I was very tired,but I felt very happy because I could help others.【高分句型二】(感受)。

广西玉林-解析版

广西玉林-解析版

广西玉林市2011年中考数学试卷一、选择题(本大题共12小题,每小题3分,共36分)1、(2011•玉林)计算2×(﹣1)的结果是()A、﹣B、﹣2C、1D、2考点:有理数的乘法。

专题:计算题。

分析:根据有理数乘法的法则进行计算即可.解答:解:原式=﹣(1×2)=﹣2.故选B.点评:本题考查的是有理数乘法法则:两数相乘,同号得正,异号得负,并把绝对值相乘.2、(2011•玉林)若∠α的余角是30°,则cosα的值是()A、B、C、D、考点:特殊角的三角函数值。

专题:计算题。

分析:先根据题意求得α的值,再求它的余弦值.解答:解:∠α=90°﹣30°=60°,cosα=cos60°=.故选A.点评:本题考查特殊角三角函数值的计算,特殊角三角函数值计算在中考中经常出现,题型以选择题、填空题为主.【相关链接】特殊角三角函数值:sin30°=,cos30°=,tan30°=,cot30°=;sin45°=,cos45°=,tan45°=1,cot45°=1;sin60°=,cos60°=,tan60°=,cot60°=.互余角的性质:两角互余其和等于90度.3、(2011•玉林)下列运算正确的是()A、2a﹣a=1B、a+a=2a2C、a•a=a2D、(﹣a)2=﹣a2考点:幂的乘方与积的乘方;合并同类项;同底数幂的乘法。

专题:计算题。

分析:利用合并同类项、同底数幂的乘法、积的乘方法则进行计算.解答:解:A、2a﹣a=a,此选项错误;B、a+a=2a,此选项错误;C、a•a=a2,此选项正确;D、(﹣a)2=a2,此选项错误.故选C.点评:本题考查了合并同类项,同底数幂的乘法,积的乘方,理清指数的变化是解题的关键.4、(2011•玉林)下列图形是轴对称图形,又是中心对称图形的有()A、4个B、3个C、2个D、1个考点:中心对称图形;轴对称图形。

最新广西玉林市中考化学试题及答案(标准答案版)

最新广西玉林市中考化学试题及答案(标准答案版)

2011年玉林市防城港市初中毕业暨升学考试化 学(本卷满分100分,考试时间90分钟)可能用到的相对原子量:H — l C —12 N —l4 O —16 Cl —35.5 Ca —40 Na —23第一部分选择题(共40分)一.相信你的选择(本大题包括20小题,每小题2分,共40分,每小题只有一个选项符合题意,多选、错选、不选均不给分。

)1 .日常生活中发生的下列变化,属于化学变化的是A.汽油挥发B.纸张燃烧C.瓷碗破碎D.石蜡熔化2.下列属于蛋白质类食品的是A.米饭B.鸡蛋C.黄瓜D.花生3.下列物质中,属于纯净物的是A.液氧B.石油C.生铁D.牛奶4.墙内开花,墙外可以嗅到花香的原因是A.分子很小B.分子在不断运动C.分子是可分的D.分子之间有间隔5.空气中体积分数约占78%的气体是A.二氧化碳B.氮气C.氧气D.稀有气体6.地壳里含量最多的金属元素是A.钠B.铁C.铝D.铜7.下到材料中,属于有机合成材料的是A.蚕丝B.棉花C.涤纶D.羊毛8.下列操作中,能形成溶液的是9.下列反应不属于...基本反应类型的是 A. 2H 2+O 2点燃═══ 2H 2OB. 2KClO 3MnO 2═══△2KCl+3O 2↑C. Ca(OH)2+Na 2CO 3 =CaCO 3↓+2NaOHD. CH 4+2O 2点燃═══CO 2+2H 2O10.植物缺钾容易倒伏,这时需施用的化肥是A. KClB.NH 4HCO 3C.CO(NH 2)2D. Ca(H 2PO 4)211.下列处理事故的方法中,不.正.确.的是 A.电器着火用水扑灭B.炒菜时油锅着火,立即盖上锅盖C.厨房煤气管道漏气,立即关闭阀门并开窗通风D.打翻燃着的酒精灯,立即用湿抹布扑灭火焰12.下列关于二氧化碳的自述中,你认为不符合事实的是A.我是灭火英雄B.绿色植物的光合作用离不开我C.全球气候变暖与我无关D.固体的我是人工降雨的功臣13.某化合物X在空气中完全燃烧,反应的化学方程式是X+3O2 点燃═══2CO2+3H2O则X的化学式为A. CH4OB.C2H6C.C2H6OD. C2H414.有关浓硫酸的说法,错误的是A.浓硫酸具有吸水性,在实验室中常用作干燥剂B.浓硫酸具有强腐蚀性,它能使纸张、布料、皮肤等脱水碳化C.能硫酸溶于水时会吸收大量的热,可作制冷剂D.如果不慎将张硫酸沾到皮肤或衣服上,应立即用大量水冲洗,然后涂3%~5%的碳酸氢钠溶液15.下列说法或做法正确的是A.有人称自己具有特异功能,能“化水为油”。

2011年玉林市初中毕业暨升学考试

2011年玉林市初中毕业暨升学考试

2011年玉林市初中毕业暨升学考试生物本试卷分第1卷(选择题、判断题即客观题)和第Ⅱ卷(主观题)两部分,共四大题,47小题,满分100分,考试时间60分钟。

考试结束后,将试卷和答题卡一并交回。

第1卷(客观题)注意事项:1.答题前,考生在答题卡上务必用直径0.5毫米黑色墨水签字笔将自己的姓名、准考证号填写清楚,并认真核对条形码上的准考证号、姓名。

2.每小题选出答案后,用2B 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,在试卷上作答无效。

3.第1卷共35小题,共60分。

一、选择题(本大题共25小题,每小题2分,共50分。

在每小题给出的四个选项中,只有一个是符合题目要求的。

)1.2010年10月,玉林市首个湿地公园在玉东新区开工建设,湿地公园将成为“城市绿核”,把青山和绿水融为一体,人文和生态和谐连接。

湿地生态系统的作用主要是A.涵养水源,保持水土B.净化水源,蓄洪抗旱C.净化空气,保持水土D.防洪抗涝,涵养水源2.盛夏的玉林市人民中路,是芒果飘香的季节,芒果树属于A.藻类植物B.苔藓植物C.蕨类植物D.种子植物3.花生种子萌发时,胚发育过程中所需的营养物质来自A.胚根B.胚乳C.子叶D.胚芽4.图l是澳洲杏仁桉,号称“树木世界里的最高塔”,可高达156米。

但杏仁桉最顶端的树叶也能获得足够的水分,水分在植物体内向上运输的动力主要来自A.蒸腾作用B.光合作用C.呼吸作用D.吸收作用5.植物进行生命活动需要的能量来自植物细胞的有机物分解,有机物在彻底分解时必须有下列哪种气体的参与A.二氧化碳B.氮气C.氧气D.二氧化硫6.胚泡从输卵管缓慢地移动到子宫中,最终植入子宫内膜,这就是A.受精B.怀孕C.胚胎发育D.分娩7.在人体的血液中,红细胞是数量最多的血细胞,成熟的红细胞的特点是A.没有细胞核,富含血红蛋白B.有细胞核,富含血红蛋白C.有细胞核,没有血红蛋白D.没有细胞核,没有血红蛋白8.关于人体血液循环的途径和方向的叙述,不正确的是A.左心室→主动脉B.肺静脉→左心房C.肺动脉→肺D.左心房→右心室9.尿的形成及排出体外的途径正确顺序是A.肾脏→膀胱→输尿管→尿道→体外B.输尿管→膀胱→肾脏→尿道→体外C.肾脏→输尿管→膀胱→尿道→体外D.输尿管→尿道→膀胱→肾脏→体外10.2011年3月,日本福岛核电站发生爆炸,放射性物质外泄,引发核恐慌,我国曾谣传“碘可以防核辐射”,出现抢购食盐风波,事实上碘是下列哪种激素的重要成分A.甲状腺激素B.胰岛素c.性激素D.肾上腺素11.践行“低能量、低消耗、低成本”的低碳生活,倡导“健康、环保、有机、绿色”的积极生活方式。

2011玉林中考语文试题.doc

2011玉林中考语文试题.doc

2011年玉林市初中毕业暨升学考试语文(全卷满分120分,考试时间150分钟)注意事项:1.请将答案填写在答题卡上,在试卷上作答无效.考试结束,将本试卷和答题卡一并收回。

2.选择题每小题选出答案后,用2B铅笔把答题卡上对应题目的选项标号涂黑。

3.非选择题,用直径0.5毫米黑色墨水签字笔在答题卡上各题的答题区域内作答。

一、识字写字、口语交际与综合性学习。

(15分)1.下列词语中加点字的读音,完全正确的一项是(3分)A.晨曦(xī)希冀(jì)憧憬(cōng)高瞻远瞩(zhǔ)B.迤逦(yí)秀颀(qí)柔媚(méi)争妍斗艳(yán)C 滂沱(páng)澎湃(bài). 涟漪(yī)涓涓细流(juān)D.豁达(huò)诚挚(zhǐ)慷慨(kǎi)风度翩翩(piān)2.下列词语中没有错别字的一项是(3分)A.禀赋娴熟手屈一指大名鼎鼎B.污蔑吹嘘造谣生事肆无忌惮C.腼腆矜持循规蹈矩整然有序D.嶙峋险俊悬涯绝壁高山仰止4.请你在答题中认真书写,评卷老师将根据你全卷书写情况评分。

(3分)根据你班开展“自己给自己‘出’一本书”综合性学习活动,完成4~5题。

4.根据从你初中三年的习作中所选的作文,你给作文选集所拟的书名是《》(不超过5个字,3分)5.在班里出书展示会上,根据你的书和你对同学们的要求,你展示发言时对同学们说的话是(含标点不超过40个字,3分)二、古诗文与名著阅读(23分)6.根据课文和要求,写出下面空缺的古诗文名句。

(每小题2分,共8分)(1)几处早莺争暖树,(白居易《钱塘江湖春行》)(2)谁道人生无再少,(苏轼《浣溪沙》)(3)子曰:“,不成人之恶。

”(《论语》十则)(4)有的同学在毕业留言本上写下王勃的《送杜少俯之任蜀州》中的诗句“,”来表达同学之间的虽然各奔东西却如在身边的感情。

阅读下面一首诗,完成第七题。

2011广西中考物理试题及答案

2011广西中考物理试题及答案

2011年柳州市初中毕业升学考试物理参考答案一、选择题:题答案ADCDDCACADBBDAD二填空题:<BR>16、重力,静止,惯性17、电磁波,响度,超声波18、中间,快(大)19、1)kg 11s 2)定滑轮,动滑轮20、色散(折射),折射21、增加,减小22、48,32N 23、1.6×103,大于24、6,10.8W 25、2:1 2:1三、实验探究题:26、质量,串,可以,227、1)相同,高,2)大于3)水28、电流表,电流1)断开2)电流29、1)小聪,越倾斜2)匀速3)倾斜程度,粗糙程度4)机械效率30、电1)W=Pt 2)加热时使水温每升高1℃所消耗电能的电费值3)液化气灶(或炭炉)上4)加热一段时间后NSLG31、见下图:五、问答题32、1)磁场,电风扇(其他正确均可)2)自行车刹车时用力越大,车闸对车轮钢圈的压力就越大,使得车闸和车轮间摩擦就越大,即车轮所受阻力就越大,所以停得就越快。

六、综合应用题33、解1)v=s/t=10m/5s=2m/s………………………………….2分2)W=Fs=100N×10m=1000J…………………………2分3)P=W/t=1000J/5s=200W 答:略。

……….2分34、解1)灯泡正常发光时的电流为:I额=P额/U额=3W/6V=0.5A ………2分2)灯泡灯丝电阻为RL=U额2/P额=(6V)2/3W=12Ω当电流表的示数为0.4 A时,灯泡两端的电压为:UL1=I1×RL=0.4A×12Ω=4.8V则电压表的示数为:UR0=U-UL1=18V-4.8V=13.2V………………………2分3)滑动变阻器接入电路的阻值最大时电压表示数应等于15V,此时灯泡两端电压为:UL2=18V-15V=3V此时电路中的电流为I2=UL2/RL=3V/12Ω=0.25A滑动变阻器接入电路的最大阻值为:Rm=Um/I2=15V/0.25A=60Ω……………………2分电路中的最大电流为Im=0.6A,此时电路中的总电阻为:R总=U/Im=18V/0.6A=30Ω则滑动变阻器接入电路的最小阻值为Ra=R总-RL=30Ω-12Ω=18Ω 答:略。

2011年广西玉林防城港中考数学试题及答案(word版)

2011年广西玉林防城港中考数学试题及答案(word版)

第2页共8页

对全部高中资料试卷电气设备,在安装过程中以及安装结束后进行高中资料试卷调整试验;通电检查所有设备高中资料电试力卷保相护互装作置用调与试相技互术关,系电,通力根1保过据护管生高线产中敷工资设艺料技高试术中卷0资不配料仅置试可技卷以术要解是求决指,吊机对顶组电层在气配进设置行备不继进规电行范保空高护载中高与资中带料资负试料荷卷试下问卷高题总中2体2资,配料而置试且时卷可,调保需控障要试各在验类最;管大对路限设习度备题内进到来行位确调。保整在机使管组其路高在敷中正设资常过料工程试况1卷中下安,与全要过,加度并强工且看作尽护下可1都关能可于地以管缩正路小常高故工中障作资高;料中对试资于卷料继连试电接卷保管破护口坏进处范行理围整高,核中或对资者定料对值试某,卷些审弯异核扁常与度高校固中对定资图盒料纸位试,置卷编.工保写况护复进层杂行防设自腐备动跨与处接装理地置,线高尤弯中其曲资要半料避径试免标卷错高调误等试高,方中要案资求,料技编试术写5、卷交重电保底要气护。设设装管备备置线4高、调动敷中电试作设资气高,技料课中并3术试、件资且中卷管中料拒包试路调试绝含验敷试卷动线方设技作槽案技术,、以术来管及避架系免等统不多启必项动要方高式案中,;资为对料解整试决套卷高启突中动然语过停文程机电中。气高因课中此件资,中料电管试力壁卷高薄电中、气资接设料口备试不进卷严行保等调护问试装题工置,作调合并试理且技利进术用行,管过要线关求敷运电设行力技高保术中护。资装线料置缆试做敷卷到设技准原术确则指灵:导活在。。分对对线于于盒调差处试动,过保当程护不中装同高置电中高压资中回料资路试料交卷试叉技卷时术调,问试应题技采,术用作是金为指属调发隔试电板人机进员一行,变隔需压开要器处在组理事在;前发同掌生一握内线图部槽 纸故内资障,料时强、,电设需回备要路制进须造行同厂外时家部切出电断具源习高高题中中电资资源料料,试试线卷卷缆试切敷验除设报从完告而毕与采,相用要关高进技中行术资检资料查料试和,卷检并主测且要处了保理解护。现装场置设。备高中资料试卷布置情况与有关高中资料试卷电气系统接线等情况,然后根据规范与规程规定,制定设备调试高中资料试卷方案。

广西玉林市、防城港市2011年中考历史试题 精品

广西玉林市、防城港市2011年中考历史试题 精品

2011年玉林市初中毕业暨升学考试历史(本卷开卷考试,共两大题15小题,满分50分,考试50分钟)一、选择题(本大题共11小题,每小题2分,共22分。

每小题只有一个正确选项)1.由西周分立并在西汉得到推行的政治制度是A.禅让制B.奴隶制C.分封制D.私有制2.下列民族,由波斯人、阿拉伯人和汉、蒙、畏兀尔等民族逐渐融合而形成的是A.匈奴族B.回族C.藏族D.满族3. 太平天国运动中,列强成立了“洋枪队”,与清政府共同镇压太平军。

这说明A.太平军已攻陷北京城B.清军已推动抵抗能力C.外国势力已侵华D.中外反动势力已勾结4.“《申报》每期只销六百份,四个月后,该报在上海已日销三千份。

……至1877年,每日销量已达八九千份。

”材料主要反映了《申报》A.市场竞争激烈B.销售技术高超C.内容丰富多彩D.影响逐渐扩大5. “它打开了中国近代工业化的大门,是中国最早的工业化文明,具有里程碑的作用和意义。

”材料所评论的事件是A.洋务运动B.民族工业的萌芽C.辛亥革命D.新文化运动6. 观察右图“入社报名大会”场景,你认为“入社”的主要是A.农民B.地主C.商人D.工人7. 据1988年统计,我国共签订利用外资协议16377项,协议金额785.1亿美元,外资企业已达15948家,引进技术合同3530项,进出口总额达1028亿美元。

这表明①对外开放促进了经济发展②对外开放促进了经济区域化③邓小平南方谈话促进了人们思想解放④对外开放有利物科技进步A.①② B.①④ C.②③ D.③④8.以下是两次党代会的纪念邮票,会议的关键词分别是A.土地改革、真理标准问题B.一五计划、民族区域自治C.主要矛盾、走自己的道路D.市场经济、初级阶段理论9.古代埃及文明、巴比伦文明、印度文明的共同特点之一是A.与大河流域有关B.建立封建国家C.民众享有参政权利D.信奉伊斯兰教10.史学家斯塔夫里阿诺斯指出:“法国大革命不仅标志着资产阶级的胜利,而且标志着民众的充分觉醒。

2004-2011年广西省玉林市中考数学试题及答案(8套)

2004-2011年广西省玉林市中考数学试题及答案(8套)

2011年江苏省南通市中考数学试题一、选择题(本大题共10小题,每小题3分,满分30分)1.如果60m表示“向北走60m”,那么“向南走40m”可以表示为【】A.-20m B.-40m C.20m D.40m【答案】B.【考点】相反数。

【分析】向北与向南是相反方向两个概念,向北为+,向南则为负。

故根据相反数的定义,可直接得出结果2.下面的图形中,既是轴对称图形又是中心对称图形的是【】【答案】C.【考点】轴对称图形,中心对称图形。

【分析】根据轴对称图形和中心对称图形的定义,可知A是中心对称图形而不是轴对称图形;B也是中心对称图形而不是轴对称图形;C既是轴对称图形又是中心对称图形,它有四条对称轴,分别是连接三个小圆线段所在的水平和竖直直线,这水平和竖直直线之间的两条角平分线;D既不是轴对称图形也不是中心对称图形。

3.计算327的结果是【】A.±3 3 B.3 3 C.±3 D.3【答案】D.【考点】立方根。

【分析】根据立方根的定义,因为33=27,所以3273=。

4.下列长度的三条线段,不能组成三角形的是【】A.3,8,4 B.4,9,6C.15,20,8 D.9,15,8【答案】A.【考点】三角形的构成条件。

【分析】根据三角形任两边之和大于第三边的构成条件,A中3+4<8,故A的三条线段不能组成三角形。

5.如图,AB∥CD,∠DCE=80°,则∠BEF=【】A.120°B.110°C.100°D.80°【答案】C.【考点】平行线的性质。

【分析】根据同旁内角互补的平行线性质,由于AB∥CD,∠DCE和∠BEF是同旁内角,从而∠BEF=00018080100-=。

6.下列水平放置的几何体中,俯视图是矩形的为【】A.B.C.D.DA E BCF A.B.C.D.圆柱长方体三棱柱圆锥【答案】B .【考点】几何体的三视图。

【分析】根据几何体的俯视图视图规则,A 和D 的俯视图是圆,B 的俯视图是矩形,C 的 俯视图是三角形。

广西玉林市、防城港市2011年中考英语试题(word版含解析)

广西玉林市、防城港市2011年中考英语试题(word版含解析)
Itwastheearlyautumnofmyfirst21(A.term;B.year)atamiddle
school.Iknewnobody.Iwasverylonely,andafraidtomakefriendswith22
(A.anyone;B.anybody).Thenoneday,myclassmatestalkedhappilywiththeir
students)andmakefriendswiththem.Thegirlwithasmilehasbecomemybest
friendnow.Allmydarkdayshavegone.
NowI25(A.believe;B.know)thattheworldiswhatyouthinkitis.If
广西玉林市、防城港市2011年中考英语试题(word
版含解析)
2011年玉林市广西玉林市初中毕业暨升学考试
第I卷(选择题,共85分)
一、听力理解。
6.A.Underthechair.B.Onthechair.C.Behinddiechair.
7.A.Ascarf.B.Abag.C.Acamera.
8.A.Onceaweek.B.Twiceaweek.C.Threetimesaweek.
二、语言知识运用。
(一)单项选择。
26.【2011广西玉林】Yesterdaywewentto________amusementpark.
_______parkwasverycrowded.
A.a;TheB.an;TheC.an;/D.the;The答案:B【解析】考查
点:冠词的用法。解题思路:不定冠词表示泛指,定冠词表示特指。根据句
A.Helikesclothesoutofstyle.B.Helikeshairinstyle.

2011广西玉林中考数学

2011广西玉林中考数学
经检验x=200是原方程的解
∴x+2.5x=700
答:这两批水果共购进700千克。
(2)设售价每千克a元,则
∴ ,∴
答:售价至少为每千克15元。
25.(2011广西玉林、防港,25,10分)如图,点G是正方形ABCD对角线CA的延长线上任意一点,以线段AG为边作一个正方形AEFG,线段EB和GD相交于点H.
A.2 B. C. D.
【答案】C
10.(2011广西玉林、防港,10,3分)小英家的圆形镜子被打碎了,她拿了如图(网格中的每个小正方形边长为1)的一块碎片到玻璃店,配制成形状、大小与原来一致的镜面,则这个镜面的半径是()
A.2 B. C. D.3
【答案】B
11.(2011广西玉林、防港,11,3分)如图,是反比例函数 和 ( )在第一象限的图象,直线AB//x轴,并分别交两条曲母于A、B两点,若S△AOB=2,则 的值是()
【答案】解:画测量示意图
在Rt△CEB中,sin60º=
∴CE=BCsin60º=10
∴CD=CE+ED=8.65+1.55=10.2
答:风筝离地面的高度为10米
22.(2011广西玉林、防港,22,8分)如图,△OAB的底边AB经过⊙O上的点C,且OA=OB,CA=CB,⊙O与OA、OB分别交于D、E两点.
【方法规律】对于直线经过的象限,k>0时,必过一、三象限,b>0时,必过一、二;k<0时,必过二、四象限,b<0时,必过三、四象限.
【易错点分析】确定一次函数的图象经过的象限时,不能明确是哪些象限.
【关键词】二次函数的性质,一次函数的图象与性质
【推荐指数】★☆☆☆☆
【题型】常规题

2011年玉林、防城港中考物理试卷及答案

2011年玉林、防城港中考物理试卷及答案

2011年玉林市防城港市初中物理毕业暨升学考试(本试卷共四大题,30小题,满分l00分,考试时间:90分钟)一、单项选择(共14小题,42分)每小题给出的四个选项中,只有一个选项是符合题意的请把符合题意的选项选出来,选对给3分,不选、多选或选错的均给0分)1.如图1所示是安装在家庭电路中的电能表,它测量的物理量是()A.电流B.电压C.电能D.电阻2.下列现象中,主要由机械能造成破坏的是()A.干旱使庄稼枯死B.日本核泄漏造成污染C.大火烧毁房屋D.海啸冲垮堤坝3.科学知识渗透于我们生恬的各方面,以下警示语中涉及电学知识的是()A.商店玻璃门上贴有“当心玻璃注意安全”B.住宅小区配电房上写着“高压危险请勿靠近”C.出租车上的语音提示“前排乘客请系好安全带”D.香烟包装盒上印有“吸烟有害健康4.如图2所示中.主要体现声音能够传造能量的是()5.下列数值最接近实际情况的是()A.一支未用过的2B铅笔的长度约为l7cmB.一块橡皮的质量约为1kgC.一位九年级学生的体重约为50ND.一个人的正常体温约为39℃6.小李同学参加课外实践括动,使用如图3所示的剪刀修剪果园里的树枝时,他把双手尽量往剪刀柄的末端靠近,这样做的目的是为了()A.增大阻力臂,费力B.减小动力臂,费力C.增大动力臂,省力D.减小阻力臂,省力7.小陈同学的父亲买了一部3G手机,这种手机在空气中传递信息时是通过下列哪种波实现的()A.超声波B.次声波C.声波D.电磁波8.今年入夏以来,我市持续严重干旱,气象部门组织实施了多次人工降雨,在空中喷洒干冰是人工降雨的一种方法,干冰使空气中的水蒸气变成小冰粒,小冰粒在下降过程中变成雨滴其中冰粒变成雨滴的物态变化过程属于()A.熔化B.凝华C.汽化D.升华9.如图4所示电路,电源电压不变,开关S闭合,滑动变阻器的滑片P 向左移动的过程中()A.电流表的示数变大,电压表的示数变太B.电流表的示数变小,电压表的示数变大C.电流表的示数变大,电压表的示数变小D.电流表的示数变小,电压表的示数变小10.一个凸透镜的焦距是l0cm,将点燃的蜡烛放在距离这个凸透镜25cm处时,移动光屏.在光屏上得到一个清晰的像,该像是()A.正立、缩小的实像B.倒立、缩小的实像C.正立、放大的虚像D.倒立、放大的实像11.如图5所示是直流电铃的原理图.下列说法中不正确的是A.接通电源后电磁铁吸引衔铁,小锤敲击铃碗发声B.电磁铁吸引衔铁时,弹性片发生弹性形变具有弹性势能C.我们听到的铃声是通过空气传播的D.小锤敲击铃碗时,衔铁与螺钉没有分离,电磁铁仍具有磁性12如图6所示是A、B两种物质的质量m与体积V的知系图象,由图象可知,A、B两种物质的密度ρA、ρB和水的密度ρ水 (ρ水=l.0g/cm3)之间的正确关系是()A.ρA>ρ水>ρBB.ρB>ρA>ρ水C.ρB>ρ水>ρAD.ρ水>ρA>ρB13.小李同学静静地站在水平地而上,思考如何能减小自己对地面的压强.以下状态中,他对地面的压强最小的是()A.走动时B.抬起一只脚C.坐在地面上D.平躺在地面上14.如图7所示的电路,当闭合开关S后,发现L1灯亮,L2灯不亮。

2011年玉林市思想品德中考试题及答案

2011年玉林市思想品德中考试题及答案

2011年玉林市初中毕业暨升学考试思想品德(考试时间:70分钟;满分:70分;考试形式:开卷)注意事项:1.请将答案填写在答题卡上,在试卷上作答无效。

考试结束,将本试卷和答题卡一并交回。

2.选择题每小题选出答案后,用2B铅笔把答题卡上对应题目的选项标号涂黑。

3.非选择题用直径O.5毫米黑色墨水签字笔在答题卡上各题的答题区域内作答。

一、选择题(在下列各题的四个选项中,只有一项是最符合题目要求的。

每小题2分,共38分)1.2011年1月29日,题为《中共中央、国务院关于加快______改革发展的决定》的中央一号文件公布。

这是新世纪以来中央指导“三农”工作的第八个中央一号文件。

A.土地流转 B.农业 C.水利 D.新农村2.2011年度国家最高科学技术奖获得者分别是______A.谢家麟吴良镛 B.师昌绪谷超豪 C.孙家栋吴良镛 D.袁隆平谢家麟3.中国共产党十七届六中全会,于2011年10月15日至18日在北京举行。

会议通过了《中国共产党关于深化----改革、推动-----大繁荣若干重大问题的决定》。

A.文化体制社会主义文化 B.经济体制社会主义经济C.政治体制社会主义政治 D.科技体制社会主义科技4.学会理解是文明交往的前提,而学会理解的关键是学会A.换位思考 B.宽容待人 C.尊重他人 D.关心他人5.家庭并不富裕的河南商丘市第一实验小学五年级学生徐颖,七年如一日坚持把自己一点一滴积攒的压岁钱用来资助困难家庭的小伙伴,累计捐赠了1.3万多元的钱物。

徐颖的行为体现了①乐善好施的传统美德②刻苦学习的良好品质③强烈的社会责任感④善于交往的良好素养A.①② B.①③ C.②④ D.③④6.“单则易折,众则难摧。

”这一古语告诉我们A.要以集体利益为重 B.合作和竞争同等重要C.团结就是力量 D.要勇于承担责任7.战胜挫折最可靠的保证是A.坚强的意志 B.强健的体魄C.渊博的知识 D.丰富的阅历8.对右边漫画中妈妈的行为认识正确的是①有利于保护孩子健康成长②是善于与违法行为作斗争的表现③未尽到家庭保护的义务④会助长违法犯罪分子的嚣张气焰A.①② B.①③ C.②④ D.③④9.2011年3月15,陈某在网上发布消息说日本的核辐射已污染了中国沿海水域,敦促人们囤积食盐和干海带,引起部分市民恐慌,纷纷加入“抢盐”大军。

广西玉林中考数学试题解析版.doc

广西玉林中考数学试题解析版.doc

2011年广州市中考英语试题VI.单项填空(共28小题,每小题1分)36. The boys arrived late at the cinema, and the start of the film.A. caughtB. missedC. gotD. lost37. —Guess, how much does it cost?—I think it costs 15 and 20 dollars.A. fromB. betweenC. amongD. with38. As we know, some people are good at but bad at giving back.A. lendingB. keepingC. borrowingD. using39. —Why couldn't you the correct spelling of the word?—Err. . . I hadn't got a Chinese-English dictionary at hand.A. look forB. look downC. look upD. look at40. —You look very tired this morning. What did you do yesterday afternoon?—I did Christmas shopping.A. a lot ofB. a few ofC. a number ofD. a piece of41. —Would you mind looking after my dog while I'm on holiday?—.A. Of course notB. Yes. I'd be happy toC. Not at all. I've no timeD. Yes, please42. —What can I do for you?—A. Yes, you can give a skirt to meB. I'd like a skirtC. No, I can do it myselfD. I can do what I want43. After school we usually play basketball for half an hour on playground.A. the; theB. 不填;不填C. 不填; theD. the;不填44. Each of us has to write a report every two weeks.A. two-hundred-wordB. two-hundreds-wordC. two-hundreds-wordsD. two-hundred-words45. —Which would you like to drink, coffee or orange juice?— . Please give me a cup of tea.A. NeitherB. BothC. A11D. None46. An old friend of my sister's always helps my brother and with English.A. I; ourB. me; ourselvesC. I; myD. me; our47. The little boy ate a big meal he said he wasn't hungry.A. ifB. thoughC. becauseD. as48. —What do you like doing after class?—I like not only reading painting.A. andB. but alsoC. orD. for49. We love to go to the country in spring as the flowers smell so .A. wellB. niceC. wonderfullyD. nicely50. The letter from my uncle was short. There wasn't news.A. manyB. a fewC. muchD. few51. The boy doesn't speak his sister, but his written work is very good.A. as well asB. so good asC. more better thanD. more worse than52. —When did your uncle arrive China?—He got to Guangzhou the morning of the 16th of April.A. at; inB. in; inC. to; onD. in; on53. The food my country is quite different that here.A. in; likeB. to; fromC. from; toD. in; from54. way it is from Guangzhou to Paris!A. How longB. What a longC. How a longD. What long55. —I take some photos in the hall?—No, you .A. Can; needn'tB. Must ; mustn'tC. Could; won'tD. May; mustn't56. —What is the weather like this summer here?—There very little rain.A. hasB. has beenC. areD. have been57. If you carefully, you the report well.A. will listen; will be understoodB. will listen; understandC. listen; will understandD. listen; understand58. They about eight hundred English words by the end of last term.A. will learnB. had learnedC. are going to learnD. have learned59. Excuse me, sir. Could you tell me ?A. where is the bank nearestB. where is the nearest bankC. where the nearest bank isD. the nearest bank is where60. —How did the accident happen?—You know, it difficult to see the road clearly because it .A. was; was rainingB. is; has rainedC. is; is rainingD. will be; will rain61. —Hi, Tom! Can you tell me when for London?—Yes, tomorrow afternoon.A. leavingB. leavesC. to leaveD. are you leaving62. Don't worry. All the children by the nurses.A. are well taken care ofB. take good care ofC. are taken good careD. take good care63. Have you your new classmates yet?A. had friends withB. made friend withC. got friend toD. made friends with69. A. old B. difficult C. free D. clear70. A. arm-chair B. window C. house D. road71. A. arrived B. fought C. left D. returned72. A. so B. for C. and D. but73. A. up and down B. again and again C. hour after hour D. from side to sideVIII.阅读理解(共12小题,每小题1分)阅读下面的短文,然后根据短文内容选择最佳答案。

2011年广西玉林市中考数学试卷-推荐下载

2011年广西玉林市中考数学试卷-推荐下载
2 ≈1.41, 3 ≈1.73 )
对全部高中资料试卷电气设备,在安装过程中以及安装结束后进行高中资料试卷调整试验;通电检查所有设备高中资料电试力卷保相护互装作置用调与试相技互术关,系电通,力1根保过据护管生高线产中0不工资仅艺料可高试以中卷解资配决料置吊试技顶卷术层要是配求指置,机不对组规电在范气进高设行中备继资进电料行保试空护卷载高问与中题带资2负料2,荷试而下卷且高总可中体保资配障料置各试时类卷,管调需路控要习试在题验最到;大位对限。设度在备内管进来路行确敷调保设整机过使组程其高1在中正资,常料要工试加况卷强下安看与全22过,22度并22工且22作尽22下可护都能1关可地于以缩管正小路常故高工障中作高资;中料对资试于料卷继试连电卷接保破管护坏口进范处行围理整,高核或中对者资定对料值某试,些卷审异弯核常扁与高度校中固对资定图料盒纸试位,卷置编工.写况保复进护杂行层设自防备动腐与处跨装理接置,地高尤线中其弯资要曲料避半试免径卷错标调误高试高等方中,案资要,料求编试技5写、卷术重电保交要气护底设设装。备备置管4高调、动线中试电作敷资高气,设料中课并技3试资件且、术卷料中拒管试试调绝路包验卷试动敷含方技作设线案术,技槽以来术、及避管系免架统不等启必多动要项方高方案中式;资,对料为整试解套卷决启突高动然中过停语程机文中。电高因气中此课资,件料电中试力管卷高壁电中薄气资、设料接备试口进卷不行保严调护等试装问工置题作调,并试合且技理进术利行,用过要管关求线运电敷行力设高保技中护术资装。料置线试做缆卷到敷技准设术确原指灵则导活:。。在对对分于于线调差盒试动处过保,程护当中装不高置同中高电资中压料资回试料路卷试交技卷叉术调时问试,题技应,术采作是用为指金调发属试电隔人机板员一进,变行需压隔要器开在组处事在理前发;掌生同握内一图部线纸故槽资障内料时,、,强设需电备要回制进路造行须厂外同家部时出电切具源断高高习中中题资资电料料源试试,卷卷线试切缆验除敷报从设告而完与采毕相用,关高要技中进术资行资料检料试查,卷和并主检且要测了保处解护理现装。场置设。备高中资料试卷布置情况与有关高中资料试卷电气系统接线等情况,然后根据规范与规程规定,制定设备调试高中资料试卷方案。
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2011年玉林市防城港市初中毕业暨升学考试数 学(全卷共三大题,共4页,满分120分,考试时间120分钟)注意事项:1.请将答案填写在答题卡上,在试卷上作答无效.考试结束,将本试卷和答题卡一并交回. 2.选择题每小题选出答案后,用2B 铅笔把答题卡上对应题目的选项标号涂黑. 3.非选择题,用直径0.5毫米黑色墨水签字笔在答题卡上各题的答题区域内作答.一、选择题(本大题共12小题,每小题3分,共36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,把正确答案的标号填在答题卡内相应的位置上) 1.计算2(1)⨯-的结果是( )A .12- B .2- C .1 D .2 2.若α∠的余角是30°,则cos α的值是( )A .12 B .2 C .2 D .33.下列运算正确的是( )A .21a a -=B .22a a a +=C .2aa a =· D .22()a a -=- 4.下列图形是轴对称图形,又是中心对称图形的有( )A .4个B .3个C .2个D .1个5.如图,在ABCD 中,80B ∠=°,AE 平分BAD ∠交BC 于点E ,CF AE ∥交AD 于点F ,则1∠=( ) A .40° B .50°C .60°D .80°6.已知二次函数2y ax =的图象开口向上,则直线1y ax =-经过的象限是( ) A .第一、二、三象限 B .第二、三、四象限 C .第一、二、四象限 D .第一、三、四象限7.如图,你能看出这个倒立的水杯的俯视图是( )8.如图,是我市5月份某一周的最高气温统计图,则这组数据(最高气温)的众数与中位数分别是( ) A .28℃,29℃ B .28℃,29.5℃ C .28℃,30℃ D .29℃,29℃ 9.已知抛物线2123y x =-+,当15x ≤≤时,y 的最大值是( ) A .2 B .23 C .53 D .7310.小英家的圆形镜子被打碎了,她拿了如图(网格中的每个小正方形边长为1)的一块碎片到玻璃店,配制成形状、大小与原来一致的镜面,则这个镜面的半径是( )A .2BC .D .311.如图,是反比例函数1k y x =和212()ky k k x=<在第一象限的图象,直线AB x ∥轴,并分别交两条曲线于A B 、两点,若2AOB S =△,则21k k -的值是( ) A .1 B .2 C .4 D .812.一个容器装有1升水,按照如下要求把水倒出:第1次倒出12升水,第2次倒出的水量是12升的13,第3次倒出的水量是13升的14,第4次倒出的水量是14升的15,……按照这种倒水的方法,倒了10次后容器内剩余的水量是( ) A .1011升 B .19升 C .110升 D .111升 二、填空题(本大题共6小题,每小题3分,共18分.把答案填在答题卡中的横线上) 13.2011-的相反数是___________.14.近似数0.618有__________个有效数字. 15.分解因式:39a a -=____________.16.如图,是某校三个年级学生人数分布扇形统计图,则九年级学生人数所占扇形的圆心角的度数为_________.17.如图,等边ABC △绕点B 逆时针旋转30°时,C 点转到C ′的位置,且BC ′与AC 交于点D ,则C DCD′的值为_________.18.如图,AB 是半圆O 的直径,以OA 为直径的半圆O ′与弦AC 交于点D ,O E AC ′∥,并交OC 于点E ,则下列四个结论:①点D 为AC 的中点;②O OE S △′=12AOC S △;③2AC AD =;④四边形O DEO ′是菱形.其中正确的结论是________.(把所有正确的结论的序号都填上)三、解答题(本大题共8小题,满分共66分,解答过程写在答题卡上,解答应写出文字说明,证明过程或演算步骤) 19.(6分)计算:101()(5π)32-----.20.(6分)已知:12x x 、是一元二次方程2410x x -+=的两个实数根. 求:2121211()()x x x x +÷+的值. 21.(8分)假日,小强在广场放风筝,如图,小强为了计算风筝离地面的高度,他测得风筝的仰角为60°,已知风筝线BC 的长为10米,小强的身高AB 为1.55米,请你帮小强画出测量示意图,并计算出风筝离地面的高度.(结果精确到1米,参考数据1.73)22.(8分)如图,OAB △的底边AB 经过O ⊙上的点C ,且O OA OB CA CB ==⊙,,与OA OB 、分别交于D E 、两点. (1)求证:AB 是O ⊙的切线;(2)若D 为OA π3,求O ⊙的半径r .23.(8分)一个不透明的纸盒中装有大小相同的黑、白两种颜色的围棋,其中白色棋子3个(分别用白A 、白B 、白C 表示),若从中任意摸出一个棋子,是白色棋子的概率为34. (1)求纸盒中黑色棋子的个数;(2)第一次任意摸出一个棋子(不放回),第二次再摸出一个棋子,请用树状图或列表的方法,求两次摸到相同颜色棋子的概率. 24.(8分)上个月超市购进了两批相同品种的水果,第一批用了2000元,第二批用了5500元,第二批购成水果的重量是第一批的2.5倍,且进价比第一批每千克多1元. (1)求两批水果共购进了多少千克?(2)在这两批水果总重量正常损耗10%,其余全部售完的情况下,如果这两批水果的售价相同,且总利润率不低于26%,那么售价至少定为每千克多少元? (利润率=100%⨯利润成本)25.(10分)如图,点G 是正方形ABCD 对角线CA 的延长线上任意一点,以线段AG 为边作一个正方形AEFG ,线段EB 和GD 相交于点H . (1)求证:EB GD =;(2)判断EB 与GD 的位置关系,并说明理由;(3)若2AB AG ==,EB 的长.26.(12分)已知抛物线223(0)y ax ax a a =--<与x 轴交于A B 、两点(点A 在点B 的左侧),与y 轴交于点C ,点D 为抛物线的顶点. (1)求A B 、的坐标;(2)过点D 作DH y ⊥轴于点H ,若DH HC =,求a 的值和直线CD 的解析式; (3)在第(2)小题的条件下,直线CD 与x 轴交于点E ,过线段OB 的中点N 作NF x ⊥轴,并交直线CD 于点F ,则直线NF 上是否存在点M ,使得点M 到直线CD 的距离等于点M 到原点O 的距离?若存在,求出点M 的坐标;若不存在,请说明理由.2011年玉林市防城港市初中毕业暨升学考试数学参考答案及评分标准一、选择题1.B 2.A 3.C 4.C 5.B 6.D 7.B 8.A 9.C 10.B 11.C 12.D 二、填空题13.2011 14.3 15.(3)(3)a a a +- 16.144° 17.2 18.①③④ 三、解答题19.解:原式=2132--+ =0.20.解:由根与系数的关系得121241x x x x +=⎧⎨=⎩,原式=22121212121212()()x x x xx x x x x x x x ++÷=++· =1212()x x x x +· =41⨯=4.21.解:画测量示意图. 在Rt CEB △中,sin 60CEBC=°.sin 60108.652CE BC ∴==⨯·°. 8.65 1.5510.210CD CE ED ∴=+=+=≈.答:风筝离地面的高度为10米. 22.(1)证明:连接OC .OA OB CA CB OC AB ==∴,,⊥. AB ∴是O ⊙的切线.(2)解:2OC r OA r ==,,由(1)得:90OCA ∠=°.AC ∴=1sin 2230OC r A OA r A ===∴∠=.°.60AOC ∴∠=.260120AOB ∴∠=⨯=°°.AOB ODE S S S ∴=-△阴扇形=21120π2360r AB OC -··=21π23r r -·=2π)3r .2ππ)33r ∴=.21r ∴=. 0r >, 1r ∴=.23.(1)设黑色棋子有x 个,得:3334x =+. 去分母,得123(3)x =+. 解之得:1x =.经检验:1x =是原方程的解. 答:黑色棋子有1个. (2)树状图如下:∴两次摸到相同颜色棋子的概率为:61122P ==. 列表(略). 24.解:(1)设第一批购进水果x 千克,则第二批购进水果2.5x 千克,依题意得:5500200012.5x x-=. 去分母,得55005000 2.5x -=. 解之得:200x =.经检验:200x =是原方程的解. 2.5700x x ∴+=.答:这两批水果共购进700千克. (2)设售价为每千克a 元,则:700(110%)2000550026%20005500a ---+≥.6307500 1.26a ⨯≥.7500 1.2663015a a ⨯∴∴≥.≥.答:售价至少为每千克15元. 25.(1)证明:在GAD △和EAB △中,9090GAD EAD EAB EAD ∠=+∠∠=∠°,°+. GAD EAB ∴∠=∠.又AG AE AB AE ==,,()GAD EAB SAS ∴△≌△.EB GD ∴=. (2)EB GD ⊥. 理由如下:连结BD ,由(1)得:ADG ABE ∠=∠. 则在BDH △中,180()180(4545)18090DHB HDB HBD ADG ABE ∠=-∠+∠=-+∠+-∠=-°°°°°°=90°.EB GD ∴⊥.(3)设BD 与AC 交于点O , 2AB AD ==, 在Rt ABD △中,BD ===12OD OA BD ∴=== 在Rt DOG △中,OG AG OA =+==EB GD ∴=====26.解:(1)由0y =,得2230ax ax a --=.20230a x x ≠∴--=,.解之得:1213x x =-=,.∴点A 的坐标(10)-,,点B 的坐标(30),. (2)由223y ax ax a =--,令0x =,得3y a =-.(03)C a ∴-,.又2223(1)4y ax ax a a x a =--=--,得(14)D a -,. 14(3)11(03)(14)DH HC a a a a a C D ∴==---=-∴-=∴=-∴,...,,,.设直线CD 的解析式为y kx b =+,把点C ,点D 的坐标分别代入得:34b k b =⎧⎨+=⎩,.解之得:31b k =⎧⎨=⎩,. ∴直线CD 的解析式为:3y x =+.(3)存在.由(2)得:3(30)(0)2E N -,,,. 399()222F EN ∴=,,.作MQ CD ⊥于Q .设存在满足条件的点3()2M m ,,则92FM m =-,2EF MQ OM ==== 由题意得:Rt Rt FQM FNE △∽△.MQ FMEN EF∴=. 整理得:2436630m m +-=.26394m m ∴+=. 28163819444m m ++=+.29144()24m +=.91222m +=±.1232122m m ∴==-,.∴点M 的坐标为:133()22M ,或2321()22M -,.。

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