2014年安徽省合肥市50中2013年中考英语一模试题及答案

2022年安徽省合肥市五十中学中考三模英语试题(wd无答案)一、单项选择(★★) 1. True friends often stay together to ________ their happiness and sadness.A．sell B．share C．start D．separate(★★★) 2. If your parents do something wrong, you can ________ tell them in a proper way. A．angrily B．bravely C．totally D．successfully(★★★) 3. —Have you heard the latest news? The three Chinese astronauts completed their work in space and returned to Earth.—Of course. We are all ________ of them.A．worthy B．afraid C．proud D．short(★★★) 4. When you listen to your teachers in class, you had better take some ________ . A．notes B．actions C．medicine D．exercise(★★) 5. ________ your phones, and do sports for at least 60 minutes every day! You know, looking at the screen for a long time is bad for your health.A．Put away B．Pick up C．Look through D．Turn on(★★★) 6. —My grandma ________ me many interesting stories at my early age. However, I won’t have the chance again.—I am sorry to hear that.A．tells B．told C．will tell D．has told(★★★) 7. —Excuse me, could you please tell me ________ ?—Certainly. It’s about twelve minutes’ ride.A．where the nearest hospital isB．when I can get to the nearest hospitalC．how far the nearest hospital isD．how soon I can reach the nearest hospital(★★★) 8. It will be wonderful in the end ________ we have a terrible time at the beginning. A．because B．unless C．when D．although(★★★) 9. —I am a little nervous every time I take exams.—Don’t worry. Just try your best. ________, marks are not everything.A．After all B．As a result C．From now on D．In the same way(★★★) 10. —In my opinion, wearing helmets (头盔) is very necessary for road safety.— ________ It protects the rider getting hurt when an accident happens.A．That’s all right. B．I agree. C．Good idea. D．I promise.二、完形填空(★★★)Once I sent off a friend to the railway station. We called a taxi and put 11 heavy suitcases (行李箱) at the back of the car. Getting off, a middle-aged man leaning (倚着) on a 12 opened the door for us. After that, he put out a small dirty 13 to us. There were some coins and notes of one or two jiao in the bowl.I asked my friend if she had some 14 . She shook her head. I 15 in my wallet and founda note of fifty yuan. Since we didn’t have any coins, I had to give the note of fifty yuan to the middle-aged man. 16 , he kept shaking the small bowl, as if he received so much money for the first time.Not caring, we went straight to the back of the car to get the suitcases. My friend tried very hard to 17 one suitcase. Just 18 she was about to picked up the other, a dark hand put in. “let me do it.”He picked up the suitcase and offered to 19 it for us to the gate of the railway station. “No, thank you. You don’t have to do it.” My friend and I said to him. “No, I must send you off.” He limped (跛行) towards the 20 , one hand leaning on a stick and the other hand carrying the large suitcase.11.A．one B．two C．three D．four12.A．robot B．tree C．stick D．foot13.A．basket B．note C．bowl D．coin14.A．food B．bread C．gifts D．changes15.A．dropped B．searched C．handed D．counted16.A．Tired B．Surprised C．Relaxed D．Interested17.A．gave up B．put in C．turned out D．took out18.A．for B．if C．as D．since19.A．carry B．pick C．push D．pay20.A．taxi B．suitcase C．office D．station(★★★)An artist who has painted many pictures of great beauty found that he has not yet painted the one “real” picture.So he started his 21 to look for the most beautiful thing in the world. Along the road, he met a young 22 who asked him where he was going.“I do not know,”said the artist, “I want to paint the most beautiful thing in the world.”“How 23 ,” replied the lady at once, “Love is the most beautiful thing in the world. Love makes the world go round. 24 love there is no beauty.” The artist traveled on. Later, he met a soldier (军人). The artist asked him the 25 question and the soldier answered “peace” is the most beautiful thing in the world. “War is 26 and wherever you find peace you’ll find beauty and love.”“How can I 27 them — Love and Peace? ” thought the artist. As he continued, he was surprised that he reached his 28 .As he entered the door, a smile appeared on his face 29 he realized that his search was over. His wife and children were quite excited and they hugged him. He sat on his favourite old chair and his heart was in 30The artist painted the most beautiful thing in the world and called it “HOME”.21.A．speech B．picture C．journey D．fight 22.A．lady B．man C．soldier D．wife 23.A．beautiful B．wonderful C．simple D．difficult 24.A．To B．Without C．In D．From 25.A．funny B．same C．friendly D．perfect 26.A．ugly B．pleasant C．silent D．popular 27.A．describe B．write C．paint D．practice 28.A．garden B．home C．park D．path 29.A．and B．but C．though D．or30.A．peace B．trouble C．need D．danger三、补全对话7选5(★★★) Li Ming：Hi, Frank! How did you spend your weekend?Frank： 31 We saw the Beijing Opera.Li Ming：Can you understand it?Frank： 32 but it’s really difficult. Even if I didn’t understand it, I think it was very beautiful. What did you do at your weekend?Li Ming： 33 We talked and played chess with the old.Frank： 34 Can I go with you next time?Li Ming：Sure! And maybe we can also go to the theater to watch Beijing Opera together next time. Frank：Sounds great! 35A．Mei Lanfang is a famous artist of Beijing Opera.B．It was so nice of you to do that.C．I tried to understand every word,D．I can’t understand it,E．I went to the old people’s house with my brother.F．I hope I can understand more next time.G．I went to Meilanfang Grand Theater with my parents.四、阅读单选(★★★)Does the name fit the place?36. What’s the weather like in the middle of Chile?A．Cold and wet.B．Warm and wet.C．Warm and dry.D．Warm and comfortable.37. What can we know from the passage?A．Chile is chilly everywhere.B．The Red Sea is always red.C．There is no life in the Dead Sea.D．Greenland is covered with green grass.38. In which part of a newspaper can you most probably read the text? A．Geography.B．People.C．Health D．Story. (★★★)If you are a young music fan, you must hear of TFBOYS, one of the most popular music groups in China. As a member of the group, Wang Junkai now has a new role. He became a UN Environment National Goodwill Ambassador (联合国环境署亲善大使).You may wonder why Wang could get such a special job. In fact, he has been well-known for his songs and some roles in movies. However, he also cares about environmental problems, which makes him a leader on the topic of the environment among young Chinese people.As a UN Environment National Goodwill Ambassador, Wang will connect young Chinese people with some environmental problems, including pollution and the protection of wild animals.“It’s our duty to protect the environment and improve the future. I’m looking forward to learning from and working with the UN family on the key environmental problems,” Wang said. “Young people are no longer onlookers (旁观者) when talking about protecting the environment. Each of us should play a part in. I will do everything I can to take care of our earth and invite everyone to join me”, he added.So far, Wang has gotten more than 70 million fans on Weibo. Both in China and in some other Asian countries, he has been the voice of the environment in online conversations.39. Why did Wang become a UN Environment National Goodwill Ambassador?A．Because he can sing and act well.B．Because he is famous and speaks English well.C．Because he is famous and cares about environmental problems.D．Because he is handsome and cares about environmental problems.40. What will Wang do as an ambassador?A．Sing songs about protecting the environment.B．Act roles in movies about protecting the environment.C．Be onlookers when talking about protecting the environment.D．Connect young Chinese people with some environmental problems.41. What does the underlined word “it” refer to (指的是)?A．Earth.B．The UN family.C．Protecting the environment.D．An ambassador.42. What does Paragraph (段落) 5 want to tell us?A．Wang’s fans.B．Wang’s study.C．Wang’s voice.D．Wang’s influence.(★★★)Lots of teenagers think that it is difficult to set and achieve goals(目标). What about you? If your answer is yes, don’t feel sad. The following suggestions can help you.Specific(具体的) goals work best. “I’m going to recycle all my used bottles and magazines”is a much more feasible goal than “I’m going to do more for the environment”, and it is easier to stick to.It takes some time for a change to turn into a habit. It will probably take several months before a change—like getting up half an hour earlier than ever before to exercise—turns into a habit. That’s because your brain needs some time to get used to the idea that the new thing you’re doing is a part of your life.Repeating goals helps you stick to them. Say out your goals loudly each morning to remind(提醒) yourself about what you want and what you’re working for. Every time you remind yourself of your goals, you’re training yourself to stick to them.Make changes to please yourself. The key to making changes is that you will make changes because you like it, not because of your parents, teachers or someone else.Making mistakes doesn’t mean failure. Making mistakes is actually a part of learning. It may take a few tries to achieve your goals. It’s natural for you to give up a few times when you try to make a change. Remember that everyone makes mistakes. Just remind yourself to get back on the right way. 43. How many suggestions are offered by the writer?A．Three.B．Four.C．Five.D．Six.44. What does the underlined word “feasible” mean in Chinese?A．困难的B．可行的C．高尚的D．不现实的45. Why does it take time for a change to turn into a habit?A．Because the change isn’t specific.B．Because your parents want you to make the change.C．Because you will make mistakes during the learning.D．Because it takes some time for your brain to get used to the change.46. This article gives teenagers some advice on ________.A．how to make friends B．how to deal with failureC．how to form good habits D．how to set and achieve goals(★★★)Have you seen this meme (表情包) online before? The man in the meme is Michael Rosen, a famous British children’s book writer who has written about 140 books. He’s known as “nice granddad”in China.Michael Rosen was born in Middlesex, the UK in 1946. His parents were both teachers. Michael Rosen started writing poems about people he knew when he was twelve years old.Michael Rosen is busy with the teaching of writing and the reading of literature (文学作品) in schools. He visits schools to encourage children with his love for books and poems. He is one of the first poets to make visits to schools around the UK and the world. He is also one of the first poets to write about his own childhood (童年) experiences and to write them in the language children actually use.However, life hasn’t always treated Rosen well. Eddie, his second son, died at the age of 18. Rosen couldn’t forget how he felt. The death of his son was the inspiration (灵感) for Michael Rosen’s Sad Book. In March 2020, Rosen was sent to the hospital because of COVID-19. Later, Rosen recovered (恢复), but one of his ears went deaf and he had to learn how to stand up again, just like a kid. However, for Rosen, it was not the end of the world. He turned the sad experience into writing. Hewrote the book Many Different Kinds of Love and faced up to life with the most important thing —optimistic (乐观的) spirit.47. When did Michael Rosen start writing poems?A．In 1946.B．In 1958.C．In 1964.D．In 2020.48. What happened to Michael after he recovered from the hospital?A．He couldn’t hear anything.B．He had to learn how to run again.C．He turned the sad experience into writing.D．He felt it was the end of the world.49. What can you know about “nice granddad” according to the passage?A．He had a sad childhood.B．He didn’t love his second son.C．He never gave up his writing in his life.D．He wrote jokes in the lanuange children use.(★★)The Beijing 2022 Winter Olympics was a great success. It must have given a deep impression (印象) on you. Many traditional Chinese cultural elements (元素) could be seen in it. Now, let’s take a look at some of them.Year of the TigerIn Chinese culture, the tiger is a symbol of victory and good luck. The Beijing 2022 Winter Olympics met the Year of the Tiger. Therefore, many elements with the tiger were shown in people’s dress, such as the tiger-head hats and clothes with tiger pictures.Bing Dwen DwenBing Dwen Dwen, the cute mascot (吉祥物) of the Beijing 2022 Winter Olympics, catches attention with the panda’s full-body. The idea came from the traditional Chinese food Tanghulu. “Bing” is the Chinese character (汉字) for ice, and Dwen Dwen is a common nickname (外号) in China for children that suggests health.The Guest-Greeting Pine (迎客松)The guest-greeting pine is a must-visit of Mount Huangshan. Fireworks (烟花) in the shape of the “Guest-Greeting Pine” lit up the night sky during the opening ceremony, which stands for the peace and friendship between China and the world.A Willow Twig (柳条)In ancient China, when two friends parted, the one who was leaving would receive a willow twig as a gift. For the closing ceremony of the Beijing 2022 Winter Olympics, it was proper and creative to use willow twigs to say goodbye to players.50. Where is the name of Bing Dwen Dwen from?A．A tiger.B．A kind of traditional Chinese food.C．A panda.D．A Chinese character and a nickname for children.51. Which stands for the peace and friendship between China and the world? A．A willow twig.B．Tiger-head hats. C．The guest-greeting pine.D．Bing Dwen Dwen.52. What’s the best title of this passage?A．Chinese Cultural ElementsB．The Beijing 2022 Winter OlympicsC．The Opening and the Closing CeremoniesD．When Chinese Elements Meet Winter Games五、阅读回答问题(★★★)阅读下面短文，并用英语回答问题（请注意每小题后面的词数要求）。

2013-2014学年安徽省合肥五十中九年级（上）期中数学试卷一、选择题（本题共10小题，每小题3分，满分30分）1．（3分）已知二次函数y=x2﹣4x+5的顶点坐标为（）A．（﹣2，﹣1）B．（2，1）C．（2，﹣1）D．（﹣2，1）2．（3分）二次函数y=x2+4x+3的图象可以由二次函数y=x2的图象平移而得到，下列平移正确的是（）A．先向左平移2个单位，再向上平移1个单位B．先向左平移2个单位，再向下平移1个单位C．先向右平移2个单位，再向上平移1个单位D．先向右平移2个单位，再向下平移1个单位3．（3分）已知两个相似多边形的相似比是3：4，其中较小多边形的周长为36cm，则较大多边形的周长为（）A．48cm B．54cm C．56cm D．64cm4．（3分）下列四个点中，有三个点在同一反比例函数的图象上，则不在这个函数图象上的点是（）A．（5，1）B．（﹣1，5）C．（，3）D．（﹣3，﹣）5．（3分）已知点P是线段AB的黄金分割点，且AP＞BP，则下列结论正确的是（）A．=B．=0.618 C．=D．=6．（3分）反比例函数y=的图象，在每个象限内，y的值随x值的增大而增大，则k的值可为（）A．0 B．1 C．2 D．37．（3分）如图，在△ABC中，∠ADE=∠ACD=∠ABC，则图中相似三角形有（）对．A．1 B．2 C．3 D．48．（3分）对于二次函数y=2（x+1）（x﹣3），下列说法正确的是（）A．图象的开口向下B．当x＞1时，y随x的增大而减小C．当x＜1时，y随x的增大而减小D．图象的对称轴是直线x=﹣19．（3分）如图，已知四边形ABCD是矩形，把矩形沿直线AC折叠，点B落在点E处，连接DE．若DE：AC=3：5，则的值为（）A．B．C．D．10．（3分）已知二次函数y=ax2+bx+c的图象如图所示，有以下结论：①a+b+c＜0；②a﹣b+c＞2；③abc＞0；④4a﹣2b+c＜0；⑤c﹣a＞1．其中所有正确结论的序号是（）A．①②B．①③④ C．①②③⑤D．①②③④⑤二、填空题（本题共5小题，每小题4分，满分20分）11．（4分）已知=，则=．12．（4分）一个二次函数，它的二次项系数是1，且图象经过点（2，﹣3），这样的二次函数可以是．（只要求写一个符合要求的二次函数）13．（4分）已知点A（x1，y1）、B（x2，y2）在二次函数y=（x﹣1）2+1的图象上，若x1＞x2＞1，则y1y2（填“＞”、“＜”或“=”）．14．（4分）如图所示，给出下列条件：①∠B=∠ACD；②∠ADC=∠ACB；③；④AC2=AD•AB，其中单独能够判定△ABC∽△ACD的有．15．（4分）如图，线段AB的长为2，C为AB上一个动点，分别以AC、BC为斜边在AB 的同侧作两个等腰直角三角形△ACD和△BCE，那么DE长的最小值是．三、解答题（满分50分）16．（6分）已知一抛物线与x轴y轴的交点分别是A（﹣2，0）、B（0，4）且经过点C（2，16）．（1）求抛物线的解析式；（2）求抛物线的对称轴和顶点坐标．17．（8分）如图，方格纸中每个小正方形的边长为1，△ABC和△DEF的顶点都在方格纸的格点上．（1）判断△ABC和△DEF是否相似，并说明理由；（2）P1，P2，P3，P4，P5，D，F是△DEF边上的7个格点，请在这7个格点中选取3个点作为三角形的顶点，使构成的三角形与△ABC相似（要求写出2个符合条件的三角形，并在图中连接相应线段，不必说明理由）18．（8分）如图，已知反比例函数的图象与一次函数y=kx+4的图象相交于P、Q两点，并且P点的纵坐标是6．（1）求这个一次函数的解析式；（2）求△POQ的面积．19．（8分）如图，在平行四边形ABCD中，过点A作AE⊥BC，垂足为E，连接DE，F为线段DE上一点，且∠AFE=∠B．（1）求证：△ADF∽△DEC；（2）若AB=8，AD=6，AF=4，求AE的长．20．（10分）王强在一次高尔夫球的练习中，在某处击球，其飞行路线满足抛物线y=﹣x2+x，其中y（m）是球的飞行高度，x（m）是球飞出的水平距离，结果球离球洞的水平距离还有2m．（1）请写出抛物线的开口方向，顶点坐标，对称轴．（2）请求出球飞行的最大水平距离．（3）若王强再一次从此处击球，要想让球飞行的最大高度不变且球刚好进洞，则球飞行路线应满足怎样的抛物线，求出其解析式．21．（10分）如图所示，某学校拟建一个含内接矩形的菱形花坛（花坛为轴对称图形）．矩形的四个顶点分别在菱形四条边上，菱形ABCD的边长AB=4米，∠ABC=60°．设AE=x 米（0＜x＜4），矩形EFGH的面积为S米2．（1）求S与x的函数关系式；（2）学校准备在矩形内种植红色花草，四个三角形内种植黄色花草．已知红色花草的价格为20元/米2，黄色花草的价格为40元/米2．当x为何值时，购买花草所需的总费用最低，并求出最低总费用（结果保留根号）？2013-2014学年安徽省合肥五十中九年级（上）期中数学试卷参考答案与试题解析一、选择题（本题共10小题，每小题3分，满分30分）1．（3分）（2012•北海）已知二次函数y=x2﹣4x+5的顶点坐标为（）A．（﹣2，﹣1）B．（2，1）C．（2，﹣1）D．（﹣2，1）【分析】把二次函数解析式配方转化为顶点式解析式，即可得到顶点坐标．【解答】解：y=x2﹣4x+5，=x2﹣4x+4+1，=（x﹣2）2+1，所以，顶点坐标为（2，1）．故选B．【点评】本题考查了二次函数的性质，把解析式配方写成顶点式解析式是解题的关键，本题也可以利用顶点公式求解．2．（3分）（2008•泰州）二次函数y=x2+4x+3的图象可以由二次函数y=x2的图象平移而得到，下列平移正确的是（）A．先向左平移2个单位，再向上平移1个单位B．先向左平移2个单位，再向下平移1个单位C．先向右平移2个单位，再向上平移1个单位D．先向右平移2个单位，再向下平移1个单位【分析】把二次函数y=x2+4x+3化为顶点坐标式，再观察它是怎样通过二次函数y=x2的图象平移而得到．【解答】解：根据题意y=x2+4x+3=（x+2）2﹣1，按照“左加右减，上加下减”的规律，它可以由二次函数y=x2先向左平移2个单位，再向下平移1个单位得到．故选B．【点评】此题不仅考查了对平移的理解，同时考查了学生将一般式转化顶点式的能力．3．（3分）（2013秋•蜀山区校级期中）已知两个相似多边形的相似比是3：4，其中较小多边形的周长为36cm，则较大多边形的周长为（）A．48cm B．54cm C．56cm D．64cm【分析】根据相似多边形对应边之比、周长之比等于相似比，而面积之比等于相似比的平方计算即可．【解答】解：大多边形与小多边形的相似比是4：3．相似多边形周长的比等于相似比，因而设大多边形的周长为x，则有=，解得：x=48．大多边形的周长为48cm．故选A．【点评】本题考查相似多边形的性质．相似多边形对应边之比、周长之比等于相似比，而面积之比等于相似比的平方．4．（3分）（2009•大连）下列四个点中，有三个点在同一反比例函数的图象上，则不在这个函数图象上的点是（）A．（5，1）B．（﹣1，5）C．（，3）D．（﹣3，﹣）【分析】由反比例函数表达式的特点可知，在其图象上的点的横、纵坐标的乘积都等于k，所以判断点是否在反比例函的图象上，只要验证一下横、纵坐标的乘积是否与k相等就可以了．【解答】解：A、k=5×1=5，故在函数图象上；B、k=﹣1×5=﹣5≠5，故不在函数图象上；C、k=×3=5，故在函数图象上；D、k=﹣3×（﹣）=5，故在函数图象上．故选B．【点评】本题主要考查反比例函数图象上点的坐标特征．所有在反比例函数上的点的横纵坐标的积应等于比例系数．5．（3分）（2013秋•蜀山区校级期中）已知点P是线段AB的黄金分割点，且AP＞BP，则下列结论正确的是（）A．=B．=0.618 C．=D．=【分析】根据黄金分割的定义即可进行判断．【解答】解：∵点P是线段AB的黄金分割点，且AP＞BP，∴==，从而可得A、B、D错误；C正确．故选C．【点评】本题考查了黄金分割的知识，把线段AB分成两条线段AC和BC（AC＞BC），且使AC是AB和BC的比例中项，叫做把线段AB黄金分割．6．（3分）（2008•漳州）反比例函数y=的图象，在每个象限内，y的值随x值的增大而增大，则k的值可为（）A．0 B．1 C．2 D．3【分析】本题考查反比例函数的图象和性质．对反比例函数y=（k≠0），当k＜0时，在同一个象限，y随x的增大而增大．【解答】解：因为y=的图象，在每个象限内，y的值随x值的增大而增大，所以k﹣1＜0，k＜1．故选A．【点评】本题考查了反比例函数的图象和性质，注意函数解析式y=中k的取值．7．（3分）（2013秋•蜀山区校级期中）如图，在△ABC中，∠ADE=∠ACD=∠ABC，则图中相似三角形有（）对．A．1 B．2 C．3 D．4【分析】根据已知先判定线段DE∥BC，再根据相似三角形的判定方法进行分析，从而得到答案．【解答】解：∵∠ADE=∠ACD=∠ABC∴DE∥BC∴△ADE∽△ABC，∵DE∥BC∴∠EDC=∠DCB，∵∠ACD=∠ABC，∴△EDC∽△DCB，同理：∠ACD=∠ABC，∠A=∠A，∴△ABC∽△ACD，∵△ADE∽△ABC，△ABC∽△ACD，∴△ADE∽△ACD，∴共4对．故选：D．【点评】此题考查了平行线的判定；相似三角形的判定：（1）两角对应相等的两个三角形相似；（2）两边对应成比例且夹角相等的两个三角形相似；（3）三边对应成比例的两个三角形相似；（4）如果一个直角三角形的斜边和一条直角边与另一个直角三角形的斜边和一条直角边对应成比例，那么这两个直角三角形相似．8．（3分）（2012•巴中）对于二次函数y=2（x+1）（x﹣3），下列说法正确的是（）A．图象的开口向下B．当x＞1时，y随x的增大而减小C．当x＜1时，y随x的增大而减小D．图象的对称轴是直线x=﹣1【分析】先把二次函数化为顶点式的形式，再根据二次函数的性质进行解答．【解答】解：二次函数y=2（x+1）（x﹣3）可化为y=2（x﹣1）2﹣8的形式，A、∵此二次函数中a=2＞0，∴抛物线开口向上，故本选项错误；B、∵由二次函数的解析式可知，此抛物线开口向上，对称轴为x=1，∴当x＞1时，y随x 的增大而增大，故本选项错误；C、∵由二次函数的解析式可知，此抛物线开口向上，对称轴为x=1，∴当x＜1时，y随x 的增大而减小，故本选项正确；D、由二次函数的解析式可知抛物线对称轴为x=1，故本选项错误．故选C．【点评】本题考查的是二次函数的性质，根据题意把二次函数化为顶点式的形式是解答此题的关键．9．（3分）（2013•湖州）如图，已知四边形ABCD是矩形，把矩形沿直线AC折叠，点B 落在点E处，连接DE．若DE：AC=3：5，则的值为（）A．B．C．D．【分析】根据翻折的性质可得∠BAC=∠EAC，再根据矩形的对边平行可得AB∥CD，根据两直线平行，内错角相等可得∠DAC=∠BCA，从而得到∠EAC=∠DAC，设AE与CD相交于F，根据等角对等边的性质可得AF=CF，再求出DF=EF，从而得到△ACF和△EDF相似，根据相似三角形对应边成比例求出=，设DF=3x，FC=5x，在Rt△ADF中，利用勾股定理列式求出AD，再根据矩形的对边相等求出AB，然后代入进行计算即可得解．【解答】解：∵矩形沿直线AC折叠，点B落在点E处，∴∠BAC=∠EAC，AE=AB=CD，∵矩形ABCD的对边AB∥CD，∴∠DCA=∠BAC，∴∠EAC=∠DCA，设AE与CD相交于F，则AF=CF，∴AE﹣AF=CD﹣CF，即DF=EF，∴=，又∵∠AFC=∠EFD，∴△ACF∽△EDF，∴==，设DF=3x，FC=5x，则AF=5x，在Rt△ADF中，AD===4x，又∵AB=CD=DF+FC=3x+5x=8x，∴==．故选A．【点评】本题考查了矩形的性质，平行线的性质，等角对等边的性质，相似三角形的判定与性质，勾股定理的应用，综合性较强，但难度不大，熟记各性质是解题的关键．10．（3分）（2009•黄石）已知二次函数y=ax2+bx+c的图象如图所示，有以下结论：①a+b+c ＜0；②a﹣b+c＞2；③abc＞0；④4a﹣2b+c＜0；⑤c﹣a＞1．其中所有正确结论的序号是（）A．①②B．①③④ C．①②③⑤D．①②③④⑤【分析】由抛物线的开口方向判断a与0的关系，由抛物线与y轴的交点判断c与0的关系，然后根据对称轴及抛物线当x=1和x=﹣1时的情况进行推理，进而对所得结论进行判断．【解答】解：①当x=1时，y=a+b+c＜0，故①正确，②当x=﹣1时，y=a﹣b+c＞2，故②正确，③由抛物线的开口向下知a＜0，与y轴的交点为在y轴的正半轴上，∴c＞0，对称轴为x==﹣1，得2a=b，∴a、b同号，即b＜0，∴abc＞0，故③正确，④∵对称轴为x==﹣1，∴点（0，2）的对称点为（﹣2，2），∴当x=﹣2时，y=4a﹣2b+c=2，故④错误，⑤∵x=﹣1时，a﹣b+c＞1，又﹣=﹣1，即b=2a，∴c﹣a＞1，故⑤正确．故选：C．【点评】此题考查了点与函数的关系，还要注意二次函数y=ax2+bx+c系数符号的确定，难度适中．二、填空题（本题共5小题，每小题4分，满分20分）11．（4分）（2014秋•高邮市期末）已知=，则=．【分析】用b表示出a，然后代入比例式进行计算即可得解．【解答】解：∵=，∴a=b，∴==．故答案为：．【点评】本题考查了比例的性质，用b表示出a是解题的关键．12．（4分）（2008秋•泰州期末）一个二次函数，它的二次项系数是1，且图象经过点（2，﹣3），这样的二次函数可以是y=（x﹣2）2﹣3（答案不唯一）．（只要求写一个符合要求的二次函数）【分析】一个二次函数，它的二次项系数是1，且图象经过点（2，﹣3），因而二次项系数是1，把经过的点（2，﹣3）当作顶点，即可写出二次函数的解析式．【解答】解：已知二次函数的二次项系数是1，把图象经过的点（2，﹣3）特殊化，即顶点（2，﹣3），由抛物线的顶点式，可得y=（x﹣2）2﹣3．本题答案不唯一．故答案是：y=（x﹣2）2﹣3．（本题答案不唯一）．【点评】根据对于函数图象的描述能够理解函数的解析式的特点，是解决本题的关键．13．（4分）（2012•苏州）已知点A（x1，y1）、B（x2，y2）在二次函数y=（x﹣1）2+1的图象上，若x1＞x2＞1，则y1＞y2（填“＞”、“＜”或“=”）．【分析】先根据二次函数的解析式得出函数图象的对称轴，再判断出两点的位置及函数的增减性，进而可得出结论．【解答】解：∵a=1＞0，∴二次函数的图象开口向上，由二次函数y=（x﹣1）2+1可知，其对称轴为x=1，∵x1＞x2＞1，∴两点均在对称轴的右侧，∵此函数图象开口向上，∴在对称轴的右侧y随x的增大而增大，∵x1＞x2＞1，∴y1＞y2．故答案为：＞．【点评】本题考查的是二次函数图象上点的坐标特点，根据题意判断出A、B两点的位置是解答此题的关键．14．（4分）（2011•合肥校级一模）如图所示，给出下列条件：①∠B=∠ACD；②∠ADC=∠ACB；③；④AC2=AD•AB，其中单独能够判定△ABC∽△ACD的有①②④．【分析】利用相似三角形相似的判定，分别把①②④用作条件，结合题中已知条件均可证明△ABC∽△ACD．【解答】解：由图可知∠A为两个要证明相似的三角形的公共角，因此，只要再找出一组对应角相等，或两组对应边成比例即可证明△ABC∽△ACD．而①②④分别与∠A为△ABC与△ACD的公共角相结合，均可推出△ABC∽△ACD．③中∠A不是已知的比例线段的夹角，故不正确．∴选①②④．故答案为：①②④．【点评】本题考查了相似三角形的判定定理．15．（4分）（2012•扬州）如图，线段AB的长为2，C为AB上一个动点，分别以AC、BC 为斜边在AB的同侧作两个等腰直角三角形△ACD和△BCE，那么DE长的最小值是1．【分析】设AC=x，则BC=2﹣x，然后分别表示出DC、EC，继而在RT△DCE中，利用勾股定理求出DE长度的表达式，利用函数的知识进行解答即可．【解答】解：如图，连接DE．设AC=x，则BC=2﹣x，∵△ACD和△BCE分别是等腰直角三角形，∴∠DCA=45°，∠ECB=45°，DC=，CE=（2﹣x），∴∠DCE=90°，故DE2=DC2+CE2=x2+（2﹣x）2=x2﹣2x+2=（x﹣1）2+1，当x=1时，DE2取得最小值，DE也取得最小值，最小值为1．故答案为：1．【点评】此题考查了二次函数最值及等腰直角三角形，难度不大，关键是表示出DC、CE，得出DE的表达式，还要求我们掌握配方法求二次函数最值．三、解答题（满分50分）16．（6分）（2013秋•蜀山区校级期中）已知一抛物线与x轴y轴的交点分别是A（﹣2，0）、B（0，4）且经过点C（2，16）．（1）求抛物线的解析式；（2）求抛物线的对称轴和顶点坐标．【分析】（1）首先设抛物线的解析式为y=ax2+bx+c，再把A（﹣2，0）、B（0，4）且经过点C（2，16）分别代入y=ax2+bx+c，进而可得关于a、b的方程组，再解出a、b的值，进而可得答案；（2）根据对称轴是x=﹣，顶点坐标是（﹣，），再代入a、b、c的值可得答案．【解答】解：（1）设抛物线的解析式为y=ax2+bx+c，∵与y轴的交点是（0，4），∴c=4，∵经过A（﹣2，0），C（2，16），∴，解得：，∴抛物线的解析式为y=x2+4x+4；（2）抛物线的对称轴是x=﹣=﹣=﹣2，==0，顶点坐标是（﹣2，0）．【点评】此题主要考查了待定系数法求二次函数解析式，以及求顶点坐标和对称轴，关键是掌握对称轴是x=﹣，顶点坐标是（﹣，）．17．（8分）（2010•丽水）如图，方格纸中每个小正方形的边长为1，△ABC和△DEF的顶点都在方格纸的格点上．（1）判断△ABC和△DEF是否相似，并说明理由；（2）P1，P2，P3，P4，P5，D，F是△DEF边上的7个格点，请在这7个格点中选取3个点作为三角形的顶点，使构成的三角形与△ABC相似（要求写出2个符合条件的三角形，并在图中连接相应线段，不必说明理由）【分析】（1）首先根据小正方形的边长，求出△ABC和△DEF的三边长，然后判断它们是否对应成比例即可．（2）只要构成的三角形与△ABC的三边比相等即可（答案不唯一）．【解答】解：（1）△ABC和△DEF相似；根据勾股定理，得AB=2，AC=，BC=5；DE=4，DF=2，EF=2；∵=，∴△ABC∽△DEF．（2）答案不唯一，下面6个三角形中的任意2个均可；△DP2P5，△P5P4F，△DP2P4，△P5P4D，△P4P5P2，△FDP1．【点评】此题主要考查的是相似三角形的判定方法：如果两个三角形的三组对应边的比相等，那么这两个三角形相似．（SSS）18．（8分）（2003•海南）如图，已知反比例函数的图象与一次函数y=kx+4的图象相交于P、Q两点，并且P点的纵坐标是6．（1）求这个一次函数的解析式；（2）求△POQ的面积．【分析】（1）首先根据点P的纵坐标是6，结合反比例函数的图象求得点P的横坐标，再根据点P的坐标求得一次函数的解析式；（2）可以求得直线和x轴的交点坐标以及联立解方程组求得点Q的坐标，再进一步根据x 轴所分割成的两个三角形的面积进行计算．【解答】解：（1）把y=6代入，∴x=2，把（2，6）代入一次函数y=kx+4，∴k=1，∴一次函数的解析式是y=x+4；（2）根据（1）中的直线的解析式，令y=0，则x=﹣4，即直线与x轴的交点M的坐标是（﹣4，0），根据题意得，解得或．即点Q（﹣6，﹣2），∴S△POQ=S△OMQ+S△OMP=×4×2+×4×6=4+12=16．【点评】此题要求学生既能够根据函数的解析式求得点的坐标，也能够根据点的坐标求得函数的解析式，还也能够运用分割法求得不规则三角形的面积．19．（8分）（2013•巴中）如图，在平行四边形ABCD中，过点A作AE⊥BC，垂足为E，连接DE，F为线段DE上一点，且∠AFE=∠B．（1）求证：△ADF∽△DEC；（2）若AB=8，AD=6，AF=4，求AE的长．【分析】（1）利用对应两角相等，证明两个三角形相似△ADF∽△DEC；（2）利用△ADF∽△DEC，可以求出线段DE的长度；然后在Rt△ADE中，利用勾股定理求出线段AE的长度．【解答】（1）证明：∵四边形ABCD是平行四边形，∴AB∥CD，AD∥BC，∴∠C+∠B=180°，∠ADF=∠DEC．∵∠AFD+∠AFE=180°，∠AFE=∠B，∴∠AFD=∠C．在△ADF与△DEC中，∴△ADF∽△DEC．（2）解：∵四边形ABCD是平行四边形，∴CD=AB=8．由（1）知△ADF∽△DEC，∴，∴DE===12．在Rt△ADE中，由勾股定理得：AE===6．【点评】本题主要考查了相似三角形的判定与性质、平行四边形的性质和勾股定理三个知识点．题目难度不大，注意仔细分析题意，认真计算，避免出错．20．（10分）（2008•巴中）王强在一次高尔夫球的练习中，在某处击球，其飞行路线满足抛物线y=﹣x2+x，其中y（m）是球的飞行高度，x（m）是球飞出的水平距离，结果球离球洞的水平距离还有2m．（1）请写出抛物线的开口方向，顶点坐标，对称轴．（2）请求出球飞行的最大水平距离．（3）若王强再一次从此处击球，要想让球飞行的最大高度不变且球刚好进洞，则球飞行路线应满足怎样的抛物线，求出其解析式．【分析】抛物线的开口方向由二次项系数确定，顶点，对称轴，可以由抛物线顶点式确定．本题抛物线都是经过原点的，要充分运用好顶点式解题．【解答】解：（1）y=﹣x2+x=﹣（x﹣4）2+∴抛物线y=﹣x2+x开口向下，顶点为（4，），对称轴为直线x=4；（2）令y=0，得：﹣x2+x=0解得：x1=0，x2=8∴球飞行的最大水平距离是8m．（3）要让球刚好进洞而飞行最大高度不变，则球飞行的最大水平距离为10m∴抛物线的对称轴为直线x=5，顶点为（5，）设此时对应的抛物线解析式为y=a（x﹣5）2+又∵点（0，0）在此抛物线上，∴25a+=0，a=﹣∴y=﹣（x﹣5）2+，即y=﹣x2+x．【点评】任何一个抛物线解析式都是可以写成一般式和顶点式的，要充分用好抛物线的对称性，顶点，解析式中的顶点式解题．21．（10分）（2013•莆田）如图所示，某学校拟建一个含内接矩形的菱形花坛（花坛为轴对称图形）．矩形的四个顶点分别在菱形四条边上，菱形ABCD的边长AB=4米，∠ABC=60°．设AE=x米（0＜x＜4），矩形EFGH的面积为S米2．（1）求S与x的函数关系式；（2）学校准备在矩形内种植红色花草，四个三角形内种植黄色花草．已知红色花草的价格为20元/米2，黄色花草的价格为40元/米2．当x为何值时，购买花草所需的总费用最低，并求出最低总费用（结果保留根号）？【分析】（1）连接AC、BD，根据轴对称的性质，可得EH∥BD，EF∥AC，△BEF为等边三角形，从而求出EF，在Rt△AEM中求出EM，继而得出EH，这样即可得出S与x的函数关系式．（2）根据（1）的答案，可求出四个三角形的面积，设费用为W，则可得出W关于x的二次函数关系式，利用配方法求最值即可．【解答】解：（1）连接AC、BD，∵花坛为轴对称图形，∴EH∥BD，EF∥AC，∴△BEF∽△BAC，∵四边形ABCD是菱形，∴AB=BC，又∵∠ABC=60°，∴△ABC是等边三角形．同理，得到△BEF是等边三角形，∴EF=BE=AB﹣AE=（4﹣x）m，在Rt△AEM中，∠AEM=∠ABD=30°，则EM=AEcos∠AEM=xm，∴EH=2EM=xm，故可得S=（4﹣x）×x=﹣x2+4x．（2）易求得菱形ABCD的面积为8m2，由（1）得，矩形EFGH的面积S=﹣x2+4x．则可得四个三角形的面积为（8+x2﹣4x）m2，设总费用为W，则W=20（﹣x2+4x）+40（8+x2﹣4x）=20x2﹣80x+320=20（x﹣2）2+240，∵0＜x＜4，∴当x=2时，W取得最小，W最小=240元．即当x为2时，购买花草所需的总费用最低，最低费用为240元．【点评】本题考查了二次函数的应用，首先需要根据花坛为轴对称图形，得出EH∥BD，EF∥AC，重点在于分别得出EF、EH关于x的表达式，另外要掌握配方法求二次函数最值的应用．参与本试卷答题和审题的老师有：星期八；hbxglhl；137-hui；sjzx；张超。

合肥市第五十中学2014－2015学年度九年级第一学期期中考试英语试卷听力部分（20分）一、关键词语选择（共5小题；每小题1分，满分5分）（）1. A. trip B. ship C. sheep（）2. A. silly B. empty C. funny（）3. A. report B. repeat C. rewrite（）4. A. hardly B. nearly C. clearly（）5. A. wake up B. look up C. come up二、短对话理解（共5小题；每小题1分，满分5分）你将听到五段对话，每段对话后有一个小题。

请在每小题所给的A、B、C三个选项中选出一个最佳选项。

每段对话读两遍。

（）6.How does the girl’s father know the news ?A. On TV.B. On the radio.C. On the Internet.（）7. When can the woman get the ticket to Nanjing ?A. This MondayB. This SaturdayC. Next Monday（）8. Where does the conversation probably take place ?A. In a restaurantB. In a bookshopC. In a post office（）9. What’s the weather like ?A. WindyB. SunnyC. Snowy（）10. How did Jim go to school today ?A. By carB. By busC. By bike三、长对话理解（共5小题；每小题1分，满分5分）你将听到五段对话，每段对话后有几个小题。

请在每小题所给的A、B、C三个选项中选出一个最佳选项。

每段对话读两遍。

听第一段对话，回答第11--12小题。

安徽省合肥一中2013-2014学年高二上学期第一次月考英语试卷一、听力（共20小题，每题1分；共20分）第一节（共5小题）请听下面5段对话，选出最佳选项。

1. Where is the conversation probably taking place?A. In a restaurant.B. In a bank.C. In an airport.2. Who made the kite?A. The woman.B. The man.C. John.3. What is the rent if the man wants a single room with a hot bath?A. $50.B. $15.C. $35.4. How much time does it take Jane to the place?A. 15 minutes.B. 30 minutes.C. 45 minutes.5. What can we learn from this conversation?A. The man enjoyed the match very much.B. The man was too tired to watch the game.C. The game was over before the man got home.第二节（共15小题）请听第6段材料，回答第6~7题。

6. What is the relationship between the two speakers?A. Boss and secretary.B. Fellow-travelers.C. Workmates.7. What does the man have to do now?A. Do the woman‟s work.B. Deal with much e-mail.C. Work overtime without pay.请听第7段材料,回答第8~10题。

2014年合肥第三次质量检测（英语）（五十中）有答案笔试部分（120分）Ⅵ. 单项选择（共20小题；每小题1分；满分20分）从每小题所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项。

31. ---Would you like to attend China’s Got Talent(《中国达人秀》)？--- . But I’m busy revising for my test.A. Don’t mention itB. I’d love toC. That’s all rightD. My pleasure32. is watching TV. Let’s turn it off.A. SomebodyB. AnybodyC. NobodyD. Everybody33. ---What’s that?---Sour soup. It’s made pork and vegetables.A. inB. withC. toD. at34. The movie “Batman and Joker” is one that I’ve ever seen. .A. more excitingB. more excitedC. the most excitingD. the most excited35. ---I like eating at that KFC restaurant. Food there is delicious and healthy!--- . Eating too much junk food is bad for your health.A. That’s rightB. That’s all rightC. I really can’t agree with youD. It doesn’t matter36. ---Honey, stay home before I return.---I , Mum.A. mustB. canC. willD. should37. ---How about talent show?---I should say it was great success.A. /; theB. a; theC. the; aD. the; /38. Nearly every child hates tests, it’s necessary. It helps to check if you have learned the specific knowledge.A. andB. butC. soD. because39. Young people today posting wonderful articles and beautiful photos onto the micromessage（微信）to share with friends.A. are afraid ofB. are worried aboutC. are waiting forD. are used to40. I’ve got several novels written by Mo Yan. You can borrow if you like.A. oneB. itC. everyD. either41. ---What do you think of the documentary A bite of China?--- . It has attracted lots of TV audiences.A. Enjoy yourselfB. Many thanksC. Pretty goodD. It’s hard to say42. If I am wanted on the telephone, ask him to leave a ?A. messageB. letterC. diaryD. sentence43. ---The girls are talking about the art festival .---Yes. They have so many fun things to share.A. easilyB. angrilyC. sadlyD. happily44. ---Do you know Jane visits her grandparents?---Once a week. She loves them deeply.A. how soonB. how oftenC. how longD. how far45. ---Excuse me, is this iPad mini?---No, it isn’t. is at home.A. your; mineB. your; MyC. yours; MyD. yours; Mine46. Parents always tell their children here for only a few days.A. not to playB. to not playC. not playingD. not play47. ---Excuse me, where is Mr. Brown’s office?---Sorry, I don’t know. I here for only a few days.A. workB. workedC. have workedD. will work48. ---I lost the chance to take part in the speaking competition.--- !A. CongratulationsB. Good luckC. What a pityD. Well done49. ---Where is Li Hua? Is he in the classroom now?---He be there, for I saw him in the teachers’ office just now.A. can’tB. may notC. shouldn’tD. mustn’t50. ---Hi, Tom! Can you tell me when for London?---Yes, tomorrow afternoon.A. you have leftB. you leftC. to leaveD. are you leaving Ⅶ. 完形填空（共20小题；每小题1分，满分30分）AMichael Leung, a famous TV host in Hong Kong, wrote a letter to his son. It is not only helpful 51 children, but also good for all ages. The following are 52 from his letter.1. Life is short. 53 you are wast ing it today, you’ll realize you are at the end of it tomorrow. 54 the earlier you start to value your life, the earlier you can enjoy it.2. You 55 be successful if you don’t study hard, although a lot of successful people haven’t received56 education.3. I don’t57 you to support（供养）me for the rest of my life, so I’m not going to do the same for you. You will be living on your own when you grow up.4. You can require yourself to be nice to others, but you should not expect 58 from others.5. I’ve been buying the lotter y（彩票）for almost 20 years, but I’m59 poor. I have never even got third place. So you have to work hard to be 60 . There is no free lunch in the world.51. A. for B. to C. about D. With52. A. come B. gone C. chosen D. made53. A. If B. Because C. Although D. While54. A. So B. As C. Or D. But55. A. might not B. shouldn’t C. mustn’t D.needn’t56. A. low B. wrong C. right D. high57. A. hope B. look forward C. expect D. depend58. A. different B. the same C. too many D. good59. A. already B. ever C. never D. still60. A. successful B. hopeful C. confident D. proudBGood morning. The program today is about 61 . The word “music” comes from the Greek word “muse”. The Muses are the goddesses of the arts. Music is 62 one of the arts. It is like the spoken language, but uses sounds. Today’s program63 together music from different corners of the world. Who invented music? Who sang the first song? No one knows 64 the answers to these questions. But we know that music 65 a n important part in almost everyone’s life. Babies and young children love to hear people singing to them. 66 they are a little older, they like to sing the songs they have heard. When children go to school, their world of music 67 . In the middle grades students take music lessons. When they reach high school, they become interested in listening to pop music.The records we have chosen 68 you today are from American country music, Indian music, pop music and so on. Music has meaning for everyone. It can make people happy or it can make 69 sad. In this program we shall study the language of music. We shall be trying to find out more about 70 music works. We shall try to find out how music says what people feel.Now, here comes the music today, I shall explain why they are all good music... 61. A. sports B. health C. food D. music62. A. only B. also C. not only D. except63. A. brought B. bringing C. brings D. Is brought64. A. exactly B. nearly C. hardly D. especially65. A. makes B. plays C. takes D. carries66. A. where B. When C. Since D. While67. A. turns B. becomes C. grows D. gets68. A. for B. from C. of D. towards69. A. they B. their C. themselves D. them70. A. what B. how C. when D. whyVIII. 补全对话（共5小题；每小题一分，满分5分）根据对话，从方框内的选项中选出能填入空白处的最佳选项。

合肥中考网：2014年真题及答案取胜要靠耐心和毅力，任何侥幸只会酿成失败的后果。

中考频道为您第一时间提供2014年合肥中考试题及答案，希望对您有所帮助。

合肥2014年中考试题及答案发布入口中考志愿填报有哪些技巧一、估分“宜紧不宜松”中考时身体、情绪、心理因素及临场发挥都会直接影响中考成绩，因此考生在估分时一定要考虑这些因素。

比如：一些考生在考试时不注意审题，不注意规范答题，结果造成估分失误。

又如在书写过程中不够严谨，步骤疏漏或不详细，语句模糊，左扣一点，右扣一点，失分较多，其结果直接导致估分与实际分数大相径庭。

因此，估分“宜紧不宜松”，要考虑小分。

单科计入总分时不要随意“去掉小分”，中考一分之差就可能落榜心仪学校。

建议考生至少试估3次分。

第一次是按正常估分、松紧适当;第二次是按从松估分，将可得可不得的“模棱两可分”估算在内;第三次是按从紧估分，将可得分可不得分及“模棱两可的分”均不估算在内。

具体评分时，答案与评分标准完全吻合或十分吻合的，可以估满分或扣少量分。

如出现答案与评分标准有差异，应征求老师意见。

从去年考后估分情况看，造成估分较大误差的原因主要是考生在估分时会受到一些心理因素的影响。

对于优等生，考后往往能较快发现并意识到自己在试卷中出的错，估分时容易过于“保守”。

相反，一些平时成绩不太好的考生，由于受自我认识水平的限制，考后自我感觉良好，估分时会不自觉地对自己的考试成绩评价过高，缺少余地。

此外，一些考生在估分时还会受到周围同学估分信息的“暗示”，如班上某一同学的平时学习成绩与自己差不多，而这位同学估计的分数高过自己，就会导致这位考生对自己成绩的高估。

有些平时中等偏上考生，中考考得很好，估分却不高，原因是怕估高了被别人笑话。

因此作为家长，要实事求是地客观对待孩子的学业水平，面对诸如此类的情况，要有清醒的认识。

2024年合肥市中考“最后一卷”（模拟卷）英语试题注意事项：1.本试卷共四部分，十大题，满分120分，考试时间120分钟。

2.本试卷包括“试题卷”和“答题卷”两部分。

3.请务必在“答题卷”上答题，在“试题卷”上答题无效。

4.考试结束后，请将“试题卷”和“答题卷”一并交回。

第一部分听力（共四大题，满分20分）Ⅰ.短对话理解（共5小题；每小题1分，满分5分）你将听到五段对话，每段对话后有一个小题。

请在每小题所给的A、B、C三个选项中选出一个最佳选项。

每段对话读两遍。

1. What’s Daming’s favorite festival?A. B. C.2. What does the boy want?A. B. C.3. How will the weather be tomorrow?A. Rainy.B. Snowy.C. Sunny.4. What does the girl want to do?A. Watch a movie.B. Play some sports.C. Have a picnic.5. Where are the two speakers?A. In a market.B. In a museum.C. In a bank.Ⅱ.长对话理解（共5小题；每小题1分，满分5分）你将听到两段对话，每段对话后有几个小题。

请在每小题所给的A、B、C三个选项中选出一个最佳选项。

每段对话读两遍。

听下面一段对话，回答第6至7小题。

6. How many clubs are there in the school?A. 2.B. 3.C. 4.7. What does Jane think of the sports club?A. Fun.B. Tiring.C. Difficult.听下面一段对话，回答第8至10小题。

8. What’s the matter with the man?A. He has a cold.B. He has a headache.C. He has a toothache.9. How long has he been like this?A. For one day.B. For two days.C. For a week.10. What does the doctor advise him to do?A. Take some medicine.B. Have some rest.C. Drink hot water.Ⅲ.短文理解（共5小题；每小题1分，满分5分）你将听到一篇短文，短文后有五个小题。

2013年50中二模考试英语试卷第二部分英语知识运用（共三大题，满分55分）VI. 单项填空。

（共20小题，每小题1分；满分20分）从每小题所给的A、B、C、D四个选项中选出一个可以填入空白处的最佳选项。

31. --- Could you please help me put up the posters on the wall?--- ______.A. Good ideaB. I hope soC. No problemD. No doubt32. The cafe shop over there ______be very nice because it’s always full of people.A. mustB. needC. shouldD. can33. Reading can make people wise. We should read ______ we can.A. as books asB. as many as booksC. as more books asD. as many books as34. ---Would you like some _____?---No, thank you. I’m not hungry at all.A. waterB. teaC. breadD. coffee35. --- Two Hefei Evening Papers, please.---Only one copy left. Would you like to have ______, sir?A.oneB.itC. thisD. that36. ---Tom, you must stop watching TV and do your homework.---But it ______already.A. finishedB. finishesC. has finishedD. has been finished37. --- Could you tell me ______ there is a hospital near here?--- Yes, it’s next to our school.A. thatB. whatC. ifD. where38. I think we should drive a little slower, or Bill can’t ______.A. pick upB. set upC. catch upD. take up39. ---My spoken English is poor. What should I do?---You’d better ______.A. take notes in classB. do more speakingC. make word cardsD. remember new words40. You can’t imagine how different the table manners in their hometown are from ________.A. usB. theirC. themD. ours41 ---Why didn’t you answer the phone just now?---O h,sorry,I _______ in the kitchen and didn’t hear it.A.cookB.cookedC.was cookingD.am cooking42. In our city it’s easy to find a good hotel to live in because we have ______ of them.A.noneB.fewC.manyD.each43.Is it a photo of your daughter? She looks ________ in the pink dress.A.happilyB.lovelyC.quietlyD.politely44.---How can we go there?All of us don’t know the way.---Don’t worry.A guide will ________ us there.A.bringB.carryC.letD.lead45.---Would you like to play football with us after this exam?---_________. We should relax ourselves.A.My pleasureB.No doubtC.I’d love toD.I’m afraid not.46.---What’s your hobby?---I ________ collect stamps,but now I like listening to music.e toed toC.was used toD.get used to47.Our math teacher is very _______. He never plays jokes with us.A.seriousB.funnyC.nervousD.patient48.---Is the boy wearing a blue shirt your good friend?---Yes.He’s David.I have some other friends ________him in this school.A.exceptB.besideC.besidesD.without49.The menu has so many good things!I can’t decide ________ to eat.A.whatB.howC.whereD.when50.---Do you need more time to finish yesterday’s task?---Yes,another two days ______ enough.A.areB.isC.wasD.were完形填空（共20小题，每题1.5分，满分30分）阅读下面短文，从每小题所给的A、B、C、D四个选项中选出一个最佳选项。

2019年安徽省初中学业水平考试英语（试题卷）注意事项：1.本试卷共四部分，十一大题，满分150分，考试时间为120分钟。

2.全卷包括“试题卷”（8页）和“答题卷”（2页）两部分。

3.请务必在“答题卷．．．”上答题，在“试题卷”上答题无效。

4.考试结束后，请将“试题卷”和“答题卷”一并交回。

第一部分听力（共五大题，满分30分）I．关键词语选择（共5小题；每小题1分，满分5分）你将听到五个句子。

请在每小题所给的A、B、C三个选项中选出一个你所听到的单词或短语。

每个句子读两遍。

1.A.part B.pass C.place2.A.farm B.film C.form3.A.word B.world C.water4.A.lucky B.lonely C.lovely5.A.throw away B.put away C.take awayⅡ．短对话理解（共10小题；每小题1分，满分10分）你将听到十段对话，每段对话后有一个小题。

请在每小题所给的A、B、C三个选项中选出一个最佳选项。

每段对话读两遍。

6.What does the man want to buy?7.What is the weather like now?8.What would the man like to drink?9.How does Grace go to school these days?10.What does the man want to be?11. When does the movie start?A.At7:00.B.At8:00.C.At9:00.12.What color jacket does the man prefer?A.Black.B.Blue.C.Brown.13.What is the woman's name?A.Moira.B.Maria.C.Meryl.14.Where does the conversation probably take place;A.In a library.B.In a bank.C.On a bus.15.What will the woman do tonight?A.Watch a football game.B.Finish her report.C.Do the housework.Ⅲ．长对话理解（共5小题；每小题1分，满分5分）你将听到两段对话，每段对话后有几个小题。

2024年初中毕业学业考试模拟试卷英语试题卷2024.4注意事项：1．本试卷共四部分，十大题，满分120分，考试时间为120分钟。

2．全卷包括“试题卷”（8页）和“答题卡”（2页）两部分。

3．请务必在“答题卡”上答题，在“试题卷”上答题无效。

4．考试结束后，请将“试题卷”和“答题卡”一并交回。

第一部分听力（共四大题，满分20分）Ⅰ．短对话理解（共5小题；每小题1分，满分5分）你将听到五段对话，每段对话后有一个小题。

请在每小题所给的A、B、C三个选项中选出一个最佳选项。

每段对话读两遍。

1．What sport does George like?A．B．C．2．What will the weather be like?A．B．C．3．What will the man do this evening?A．Go to the cinema.B．Go shopping.C．Stay at home.4．What does Jack want to be when he grows up?A．A teacher.B．A doctor.C．A writer.5．What is the probable relationship between the two speakers?A．Father and daughter.B．Shopkeeper and customer.C．Teacher and student.Ⅱ．长对话理解（共5小题；每小题1分，满分5分）你将听到两段对话，每段对话后有几个小题。

请在每小题所给的A、B、C三个选项中选出一个最佳选项。

每段对话读两遍。

听对话，回答第6、7题。

6．What does the man want to buy?A．A pair of jeans.B．A pair of shoes.C．A pair of shorts.7．Why doesn’t the man like them?A．Because they’re a bit small.B．Because he doesn’t like the style. C．Because he doesn’t like the color.听对话，回答第8至10题。

2014届安徽合肥五十中九年级上学期期中考试语文试卷（带解析）1、古诗文默写（10分）（1）过尽千帆皆不是，。

（温庭筠《望江南》）（2），载不动许多愁。

（李清照《武陵春》）（3）了却君王天下事，_________________ 。

（辛弃疾《破阵子》）（4）浊酒一杯家万里，__________________。

（范仲淹《渔家傲秋思》）（5），只有香如故。

（陆游《卜算子咏梅》）（6）右手秉遗穗，。

（白居易《观刈麦》）（7）苏轼《江城子密州出猎》中作者借典故喻志，希望报效国家，建功立业的句子是：，。

（8）《沁园春雪》中直接表达诗人豪情壮志的句子是：，。

【答案】斜晖脉脉水悠悠只恐双溪舴艋舟赢得生前身后名燕然未勒归无计零落成泥碾作尘左臂悬敝筐持节云中，何日遣冯唐数风流人物，还看今朝【解析】试题分析：填写古诗易写错别字，原因是在背诵古诗是只注意读音，不仔细看字，结果在填写时就按音写成其它的同音字，学习时要注意这个问题。

比如本题要注意的易错字有：晖、脉、悠、舴艋、赢、燕、勒、计、零、碾、作、敝、持、遣，要根据句子的语境判断汉字，是形声字，根据形旁声旁来判断正确的写法。

考点：默写常见的名句名篇。

能力层级为识记A。

2、阅读下面文段回答问题。

（6分)我是一颗不幸的星。

一个夜晚，我从天空陨落。

我曾根深蒂固地认为我永远属于那片湛蓝而深suì（① ）的天空。

现在，我却躺在这浩瀚无际的荒原。

在忐忑不安中，我窥探四周，死一般的沉寂让我悲从中来。

在歇斯底里中，我突然想起妈妈的教诲：不要让生死耿耿于怀，廓然无累者才能达到生命的至境，活着和死亡都是生命的一部分。

我一下子豁然开朗：我这是挣脱了家园的禁锢，魂归大地的怀抱，我愿化作一póu （② ）黄土，以一颗炽热的心滋养出一片青青的小草。

【小题1】根据括号前的拼音，写出括号中应填的汉字①②【小题2】“根深蒂固”中，“蒂”的意思是。

“豁然”的意思是。

【小题3】仿照划线的句子，续写一句符合本段文字意境的句子。

2013年4月中考英语模拟试题（带答案）銆愭弧鍒?50鍒?鏃堕棿120鍒嗛挓銆?2013.4.9 I鍗曢」閫夋嫨锛堝叡15 15 鍒嗭級( ) 1. This is ________ useful dictionary. I bought it in ________ shop next to the post office. A. an; a B. an; the C. a; an D. a; the ( ) 2. ---How soon can you finish the work? ---One or two days ________ enough for us. A. has B. is C. are D. will have ( ) 3. She still failed in the exam ________ she tried her best. A. because B. if C. though D. as ( ) 4. Mr. Green has lived in the ________ hotel since he came to China. A. five-stars B. five-star C. five stars D. five stars鈥?( ) 5. ________ bad news it is and ________ the children all look! A. What a; how surprised B. What; how surprised C. What; how surprising D. How; what surprised ( ) 6. I have two sons , and ________ of them live with me. A. neither B. either C. both D. all ( ) 7. --- Mum, could you buy me a new dress like that? ---Certainly, we can buy ________one than this, but ________ this. A.a better; better than B. a good; as good as C. a cheaper; better D. a cheaper; as good as ( ) 8 .The doctor ________ the girl to take a walk for ten minutes every day. A. let B. made C. allowed D. had ( ) 9. Don鈥檛tell ________ about it. Keep it a secret________ you and me. A. somebody; between B. somebody; with C. anybody; between D. anybody; among ( ) 10. --- Jack has paid for the school things, ______he? --- ____. His father will pay for him. A. has; Yes B. hasn鈥檛; Yes C. has; No D. hasn鈥檛; No ( ) 11. --- Since he went to bed so late, don鈥檛________ too early. --- Ok,________. A. wake him up; I won鈥檛B. wake up him; I don鈥檛C. wake him up; I will D. wake up him; I will ( ) 12. --- The woman with glasses must be your mother. --- No, it ________ be my mother, my mother ________ to Dalian. A. mustn鈥檛; has gone B. can鈥檛; has gone C. must; has been D. mustn鈥檛; has been ( ) 13. Could you please tell me ________? A. which floor did he lived on B. which is the way tothe nearest bank C. how can I get to the bus station D. that he will come back soon ( ) 14. They spent as many hours as they could ___their lessons. A. study B. to study C. studying D studies ( ) 15. --- Would you please tell me something about your travel in Sydney? --- ________ A. Excuse me. I鈥檓afraid not. B. It鈥檚very nice of you to say so C. Certainly. I鈥檒l be glad to D. No. I don鈥檛like it. ( ) 16. He hasn鈥檛come yet .what do you consider _____to him ? A.happens B has happened C happening D to happen ( ) 17. Don鈥檛you know ,my dear friend ,__________it is you that she loves ? A who B which C that D what ( ) 18 .Is this school ______you studied at ten years ago? A with B that C where D the one( )19 . I can never forget the day ________ we worked together and the day ______ we spent together. A. when; which B. which; when C. what; that D. on which; when ( ) 20. Disney is an amusement park _______you can find all the normal attractions and Disney movies and characters . A which B where C that D when II琛ュ叏瀵硅瘽锛圡ary Hand鈥昅锛汣hen Hui 鈥?C锛?M: Help yourself to some chocolates. Chen Li brought them from Shanghai.锟斤拷C: 21___ I can鈥檛eat anything sweet. It鈥檚my teeth.锟斤拷M: I鈥檓sorry to hear that. 22 ____ C: I did. He told me that I have to have one tooth out and two filled. But I can鈥檛find time for it.锟斤拷M: 23_______ C: But I鈥檓busy now. I think I鈥檒l go next week.锟斤拷M: I鈥?afraid you鈥?better go right now. The sooner you do something about it, the better. C: 24______ Can you please tell our head that I鈥檒l be back by lunchtime?锟斤拷M: 25_______ 锟斤拷C: Thank you very much. See you this afternoon.锟斤拷M: See you.锟斤拷 A. If I were you, I鈥檇take care of them right away. 鈥?B. You鈥檇better not worry about yourself. 鈥?C. I agree with you. D. Thanks. E. With pleasure. F. Here you are. G. Did you see a dentist? (Li Mei walks out of the cinema. She meets Michael and his friend, Peter. ) L-Li Mei M-Michael P-Peter M: Hi, Li Mei. You look so sad. Why? L: (26) ___________________________ .It made me cry. M: Really? (27)__________________ .I prefer exciting movies. They cheer me up. L:Michael, is this your friend? M: Sorry, Yes, this is Peter, my good friend. Peter, this is Li Mei. P: Nice to meet you. L: (28)_____________________ .Are you from the USA? P: No, I'm from Canada. And I've been here for two years. L:(29)___________________________ ? P: I came here to learn Chinese. M: Excuse me, Li Mei. It's lunchtime. Peter and I are going to the KFC for lunch.(30)_________________________ ?We can go on with our talk there. L: Sorry, I can't go with you. My mother must be waiting me. III.鑻辨眽浜掕瘧銆?0鍒嗐€慉.鎶婁?4鍒嗐€?31.効鍘诲伐浣溿€?I___________rather than rest in the house . 32鎴戜滑宸茬粡鍚ч噺椋熺墿銆?We________________________Japan_______________-. 33?Tom is polite______________to his neighbors. 34.?Everyone should _________________the teacher in class. 35.濡?We鈥檒l miss the train if __________________. 36._____________________________________________________________? 37.鎴戣銆?___________________________________________________________. B 鎶婅?From November 15th, 2009锛孶S President Barack Obama went on a four-day visit in China.38 The first landing he chose was Shanghai. He talked to young students there. His visit was longer in China than that in Korea and Japan. This told people Obama had a lot of issues(o talk with China.39He needed China's support and cooperation (鍚堜綔锛塼o solve world's issues and American issues. Then Obama came to Beijing. He had a very busy schedule (鏃ョ▼锛?When a leader visits another country锛宧e or she sometimes goes to the country's most famous places. It is to show respect(灏婇噸锛塼o the localculture.40 For the leaders, it's also a good time to relax during a tiring foreign trip.38_____________________________________________________________39_________________________________________________________________40 ________________________________________________________________ IV銆佸畬褰㈠～绌篈锛堝叡15 15 鍒嗭級ф(A 銆丅銆丆鍜?D)浣抽€夐」銆?About a week ago, when I was playing basketball at our local park, I noticed a small group of boys picking on a smaller, skinnier boy. They were 41___ him names and even pushed him to the ground and kicked dirt in his face. 42 ___I saw that, I walked over to the group. I stepped 43___ them and the smaller boy, and asked them politely what this boy had done worthy of 44____ they were doing to him. One of the boys replied, 鈥淗e鈥檚weird.鈥?At that, I asked one of the boys if he thought his friend was weird, and the 45___ was 鈥淣o.鈥?So, I asked another boy what the word 鈥渨eird鈥?46___ , and he said, 鈥淒ifferent.鈥?That was my cue(鏆楃ず). I told them that everyone is 47____ , and that they all looked just as different to the other boy as he did to them. They all stood 48____ for a moment, and then the most amazing thing happened. One of the boys helped the small boy off the ground and then said sorry to him. He 49_____ to let him play with them. I thanked the boy for being so 50____ . As I looked around, I realized that there were dozens of other people at the park 51_____ no one else had stopped to help this boy. I felt happy that the boy was strong enough to stand up against his friends to 52 ______someone in need, but I felt sad that 53______else had even taken a second look. I hope that my action helped them54______ that they could have made a difference with a little 55______ , and maybe next time they will be the ones who choose to help. 41. A. giving B. making C. calling D. telling 42. A. When B. Before C. If D. Though 43. A. against B. between C. beside D. with 44. A. how B. why C. whom D. what 45. A. guess B. sign C. problem D. answer 46.A. readB. provedC. meantD. wrote 47. A. different B. free C. important D. strong 48.A. angrilyB. silentlyC. carefullyD. happily 49. A. refused B. expected C. offered D. prepared 50. A. proud B. clever C. honest D. patient 51. A. or B. so C. and D. but 52. A. help B. stop C. love D. remember 53. A. someone B. anyone C. no one D. everyone 54.A. decideB. realizeC. suggestD. agree 55. A. energy B. practice C. knowledge D. effort [B]they pay hard energy happy thrill explain easy send one see noise An old man lived in a side street of a small town. Every day after supper, some children would play football in the street. The children were too 56________ for the old man to have a good rest. One evening, the old man told the children that he would give them 25 cents each week 57________ them play football in the street at night. He said, 鈥淚am so glad when you play football happily. 鈥?This was his58________ . The boys were 59________ , for they could 60________ believe that they could 61_________ to do something they enjoyed. At the end of the 62_______ two weeks, the boys came to the old man鈥檚house, and went away each time happily with 63________ 25 cents. The third week when they came back, however, the old man said he had nearly run out of his money and 64_________ them away with 15 cents. The fourth week, the old man said he was ill and he had spent almost all his money on medicine. He gave the boys only 10 cents. The boys were very65_________ , but there was not much for them to do about it. At the end of the fifth week, the boys came back again only to get 5 cents. After that, the children never played football in the street again. VВ锛圓锛?Not many years ago锛?a wealthy and rather strange old man named Johnson lived alone in a village in the south of England. He had made a lot of money in trading with foreign countries. When he was seventy-five锛?he gave 锟?12锛?00 to the village school to buy land and equipment for a children鈥榮playground. As a result of his kindness 锛?many people came to visit him. Among them was a newspaperman. During their talk锛?Johnson remarked that he was seventy-five and expected to live to be ahundred. The newspaperman asked him how he managed to be healthy at seventy鈥昮ive. Johnson had a sense of humor. He liked whisky and drank some each day. 鈥淚have an injection 锛堟敞灏勶級in my neck each evening.鈥漢e told the newspaperman锛?thinking of his evening glass of whisky. The newspaperman did not understand what Johnson meant. In his newspaper he reported that Johnson was seventy-five and had a daily injection in his neck. Within a week Johnson received thousands of letters from all over Britain锛?asking him for the secret of his daily injection. 66. Johnson became a rich man through _________. A. doing business. B. making whisky. C. cheating. D. buying and selling land. 67. The gift of money to the school suggests that Johnson __________. A. had no children. B. was a strange man.C. was very fond of childrenD. wanted people to know how rich he was. 68. Many people wrote to Johnson to find out __________. A. what kind of whisky he had. B. how to live longer. C. how to become wealthy D. in which part of the neck to have an injection. 69. The newspaperman ____________. A. should have reported what Johnson had told him. B. shouldn鈥榯have asked Johnson what injection he had. C. was eager to live a long life. D. should have found out what Johnson really meant. 70. When Johnson said he had an injection in his neck each evening锛?he really meant that ______. A. he liked drinking a glass of whisky in the evening. B. he needed an injection in the neck. C. a daily injection in the evening would make him sleep well. D. there was something wrong with his neck. [B] 鈥淚鈥榤very tired from working here锛屸€漵aid Jean to her friend Kate锛?鈥?I鈥檓on my feet from morning to night. For the first quarter of the day锛?I clean up the counter and set the tables. For the next quarter锛?I help in the kitchen. For the second half of my workday锛?I take orders at the counters.鈥?鈥淜ate锛?I wish I had your job锛屸€滼ean went on. 鈥淔or four hours you just sit at the cash register 锛堟敹娆惧彴锛?taking in money.鈥?鈥淏ut I spend two more hours in the kitchen than you do锛屸€漵aid Kate. 鈥淚t鈥榮tiring to cook over a hot stove. I don鈥檛think you鈥榙really want myjob. In fact锛?I鈥檇like your job.鈥?71. Both Jean and Kate probably work in a____________. A. hotel B. library C. lab D. shop 72. How long did they work every day锛?_________. A. Eight hours B. Twelve hours. C. Ten hours D. Nine hours 73. How long did Kate spend in the kitchen锛?__________. A. A quarter day. B. A half day. C. One-third day. D Three-fourths day. 74. From this passage we can see that____________. A. they are both interested in their work. B. their work is neither tiring nor busy. C. both of them are tired of their work. D. they鈥榲e decided to give up their work. 75. Give a proper proverb to Jean and Kate. A. It鈥榮never too late to learn B. It鈥榮no use crying over spilt milk. C. The grass is always greener on the other side. D. One swallow锛堢嚂瀛愶級does not make a summer. [ C] Douglas Grace talks about his ideal city of the future. I see the city of the future in three zones鈥曗€昳nner锛?middle and outer. In the inner zone there will be no private cars. Public transport will be free and there will only be ambulances锛?fire engines锛?taxis and police cars. This inner zone will be the residential锛堜綇瀹呯殑锛?and recreational锛堝ū涔愮殑锛?area of the city. People will live there and go out to enjoy themselves鈥曗€晅o cinemas and restaurants. There will be parks and open spaces锛?trees and lakes锛?schools and universities. This way锛?when people are at home锛?they can go out easily and safely. Just outside the inner zone there will be big car parks for all private cars. The banks and most of the shops and hospitals will be in the middle zone. These are things that people don鈥榯need every day. All the factories and offices will be in the outer zone. People will travel out of the center to work锛?and back to the center in the evenings. The inner zone will be cleaner and better to live in and there will be more space for industry on the outside. xK b1 . Co m This is my ideal city of the future鈥曗€?a very beautiful place 锛?But I don鈥榯really think things will ever be like that锛?76. Where will people live and go out to enjoy themselves锛?A. In the middle zone. B. In the inner zone. C. In the outer zone. D. In the inner and middle zone. 77. Where will big car parks be锛?A. Just outside the middle zone. B. Just inside the middle zone. C. Just outside the inner zone. D. Just inside the inner zone. 78. What will be in the middle zone锛?A. The banks锛宧ospitals and schools. B. The banks锛宧ospitals and police stations. C. The banks锛宻chools and car parks. D. The banks锛宧ospital and most of the shops.79. Where will the factories and offices be锛?A. In the outer zone. B. In the middle zone. C. In the inner zone D. In the middle and inner zone. 80. Douglas Grace is probably . A. a painter B. a builder C. a town planner D. a dentist 锛圖锛?The clock struck eleven at night. The whole house was quiet. Everyone was in bed except me. Under the strong light锛?I looked sadly before me at a huge pile of that troublesome stuff锛堜笢瑗匡級they call 鈥渂ooks鈥濄€?I was going to have my examination the next day. 鈥淲hen can I go to bed锛熲€?I asked myself. I didn鈥檛answer 锛?In fact I dared not. The clock struck twelve. 鈥淥h锛?dear锛佲€?I cried. 鈥淭en more books to read before I can go to bed锛佲€?We pupils are the most wretched creatures in the world. Dad does not agree with me on this. He did not have to work so hard when he was a boy. The clock struck one. I was quite desperate 锛堢粷鏈涚殑锛?now. I forgot all I had learned. I was too tired to go on. I did the only thing I could. I prayed锛?鈥淥h锛?God锛?please help me pass the exam tomorrow. I do promise to work hard afterwards锛?Amen.鈥?My eyes were so heavy that I could hardly open them A few minutes later锛?with my head on the desk锛?I fell asleep. 81. When the author was going over his lessons锛?all the others in the house were ________ . A. asleep B. outside C. working in bed D. quietly laughing at him 82. He underlined word wretched in Paragraph 3 probably means_______ . A. very happy B. disappointed C. very unhappy D. hopeful 83. Reviewing his lessons didn鈥榯help him because . A. it was too late at night B. he was very tired C. his eyes lids were so heavy that he couldn鈥榯keep them open D. he hadn 鈥榯studied hard before the examination 84. What do you suppose happened to the author锛?A. He went to a church to pray again B. He passed the exam by sheerluck C. He failed in the exam D. He was punished by his teacher 85. The best title for the passage would be __________ . A. The Night Before the Examination B. Working Far into the Night C. A Slow Student D. Going Over My Lessons (B)浠诲姟鍨嬮槄璇?0鍒?姣忓皬棰?鍒嗭級( E ) As 2010 FIFA World Cup comes锛宖ans all over the world are wondering who will win the first place at the end of the competition Of the thirty-two strong teams, many people prefer Brazil, Spain, England and Argentina(闃挎牴寤凤級.Of course, the teams from France, Italy, Germany, and Portugal(钁¤悇鐗欙級are pretty strong, too. They probably have big chances of qualifying (鏁㈠緱璧?鏍硷級for the eight strongest teams. It's because of the shining stars and the wonderful teamwork. But we know that football is a special sport. Anything is possible! Some African national teams and many other teams may be the dark horses. We know that football is an exciting sport in the world. It's very popular in Europe, in South America and in other parts of the world Some football clubs take part in the national league matches (鑱旇禌锛?The professional football players play hard for their clubs to heat the other teams. The top team will be the winner of the league match. The most excellent players are chosen to join their national teams. It is the happiest thing for a professional football player to be chosen as a member of the national team. So when the thirty-two national teams come to 2010 World Cup in South Africa, the matches will attract(鍚稿紩) over three billion people. Beckham, Ronaldo and Zidane are no longer on their national teams for 2010 World Cup. More and more new shining stars like Kaka锛孧essi, C. Ronaldo and Rooney are playing for their teams hard. We are looking forward to the final match. It will be the most exciting moment when the winners hold the great cup above their heads. 86. Why do some national teams probably become the strongest eight teams? 87. The members of the national teams are very excellent, aren't they? 88. Where is 2010 FIFA World Cup held? 89. How many famous football stars are mentioned in the last paragraph? 90. What are welooking forward to according to this passage? [F]?娉ㄦ剰锛氭瘡绌??銆?Future and Today It is well known that everyone has his own dream as well as his own future. But do you know what future really is ? I have to say that future is now. That is to say we must treasure every minute now. If we want to have a bright future, we should know how important time is and use it well. There is an old English saying: 鈥淕ain time, gain life.鈥?Then what鈥檚time? Time is something that we can鈥檛see or touch, but we can feel it passing by. Time is always with us. When we are at table, time passes; when we play, time goes by unnoticeable. We always say 鈥淭ime is money鈥? but time is even more precious(鐝嶈吹鐨?than money, because when money is spent , we can earn it back. But if time is gone away, it will never return. So, some of us even say time is priceless(鏃犱环鐨?. We should always remember: future is now. For us students, we should try our best to work hard in order to create a great future of our own. We should make the best use of every hour and be the master of today. We should do everything before us as well as possible. And never put off what can be done today till tomorrow. As we all know , 鈥淭ime and tide wait for no man.鈥?If you waste today, you will regret tomorrow. So from now on, work hard. Tomorrow will be better, and your future will be brighter .Remember: 鈥淣o pains, no gains.鈥?Today鈥檚hard work is the cause of tomorrow鈥檚harvest. Title: Future and Today Opinions Supporting details Future is now. Everyone has his own dream as well as his own future. If we want to have a bright future, we should know the (91) of time and make every minute(92) . (93) is priceless. Time is money, but time is even more valuable than money, because when money is spent , we can earn it back. But (94) time will return no more. Be masters of today Today鈥檚hard work (95) to tomorrow鈥檚harvest. As students, we should never put off what can be done today till tomorrow and we should try our best to do everything well. VI?椤逛负澶氫綑閫夐」銆?_96_ One of the best things you can possibly do is to start you own club. It鈥檚great fun especially if you are the sort of person who feels there鈥檚never anything to do during the school holidays. The first thing you need to come up with is an idea for your club. _97_ Pets, clothes, pop music or dancing groups, sports, making things? The list is endless. Next you need some friends to be in your club with you. _98_ All you need is three or four other people who are interested in the same thing as you. _99___-You should all sit down somewhere together with lots of pieces of paper and write down every name you can think up. That鈥檒l keep you busy for ages. At your first meeting you should make up a rule book. And the first rule should be no grown-ups or little/big brothers or sisters! The best clubs are always secret! Now you have just about everything you need, except membership cards. These are very important and again you can speed a lot of time making them. __100__ Why not leave some space for a photo of yourself? That will make the membership card really look like it. So there you are, get clubbing! Once you get started you鈥檒l think of loads of more interesting things to do! A锛嶵hat鈥檚easy. B锛嶦njoy your own club! C锛嶪nvite a designer to join you. D 锛嶹hat are you interest in? E锛嶴ome vacation is just around the corner. F锛嶵hen you need to pick a name for your club. G锛嶶se a bright thick pen to make a special design.VII浣滄枃[A]?鍒濅笁骞寸骇鍔炲叕瀹?2012骞?鏈?____________________________________ _________ ______________________________________________________________________ ____________ _____ [B]?鎻愮ず锛岀敤缁?瑕佺偣鎻愮ず锛?锛庝汉涓庣ぞ浼2€佸笀闀裤€佸悓瀛︼紝璇氫俊浜掑姪3锛庝汉涓庤嚜鐒讹細鑳芥簮銆佺幆澧冦€佸姩妞嶇墿锛岀埍鎯滀繚鎶?4锛庝綘鐨勬€佸害锛?繁鎷熷畾) Dear fellow students, Our government is aiming to build a "harmonious society". I think it is every citizen锛噑duty to work hard to achieve this goal._____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ __________________________________ 鍙傝€冪瓟妗?-20 DCCBB鈥旵DCCD鈥旳BBCC--BCDAB 琛ュ叏瀵硅瘽銆?21.D 锟斤拷22.G 23.A 锟斤拷24.C 25.E 瀵硅瘽26 Because I saw a sad movie just now. / Because I have just seen a sad movie.27. I don' t like such a movie. / I don' t like sad movies. 28. Nice to meet you, too. 29. Why did you come here? / What did you come here for? 30. Would you like to go with us? / What about going with us? / Why not go with us? 31prefer to go to work /would go to work 32 have provided ;with lots of food 33 not only to his parents ;but also 34 pay attention to listening to 35 you don鈥檛hurry up 36 Is this the doctor (that/who) you talk about yesterday ? 37 I don鈥檛think such a little child/such little children can come up with ;so many ideas瀹屽舰CABDD鈥旵ABCC---DACBD noisy /to see / explanation /thrilled / hardly / be paid / first / their / sent / unhappy ВACDDA AABCC BCDAC ACDCA 85. Because of the shining stars and the wonderful teamwork.86. Yes, they are. 87. In South Africa. 88 Seven. 89. We are looking forward to the final match. 浠诲姟91importance/ value 92 useful/ valuable 93.Time94lost /missing/ past 95.leads/ contributes 96-100 EDAFG Dear fellow students, Ourgovernment is aiming to build a "harmonious society". I think it is every citizen锛噑duty to work hard to achieve this goal. As high school students, what should we do? First of all, we should love our motherland. Let鈥檚take a great interest in the development of our hometowns and take an active part in our school and activities. Secondly, let鈥檚fill the world with love. We should show our respect for old people, our parents and our teachers. We should also care for each other and help those in need. More importantly, all of us must be faithful and honest in our daily life. Finally, let鈥檚work together to save energy and protect our natural environment, including animals, trees, flowers and grass. As for myself, I will study even harder and try my best to do all the above. Dear fellow students, let锛噑start fight now and spare no effort/efforts to do a little bit every day, every hour, and every minute! Li Xiaolong Found September 1, 2011 A green school bag was found on the playground yesterday afternoon. Inside of which there are two new textbooks, exercise books, a pocket English鈥旵hinese dictionary and a pencil-box. Loser is expected to come to the Office of Senior Grade 3 to identify it.。

2013-2014学年安徽省合肥50中七年级（上）期中数学试卷一、选择题（每题3分）1．（3分）（2015•荆州）﹣2的相反数是（）A．﹣B．﹣2 C．D．22．（3分）（2012秋•台州期中）下列各组数中，数值相等的是（）A．﹣23和（﹣2）3B．﹣22和（﹣2）2C．﹣23和﹣32D．﹣110和（﹣1）10 3．（3分）（2008•乐山）|3.14﹣π|的值为（）A．0 B．3.14﹣πC．π﹣3.14 D．0.144．（3分）（2014秋•莘县期末）有理数a、b在数轴上的对应的位置如图所示，则（）A．a+b＜0 B．a+b＞0 C．a﹣b=0 D．a﹣b＞05．（3分）（2013秋•合肥期中）一个数是7，另一个数比它的相反数大3．则这两个数的和是（）A．﹣3 B．3 C．﹣10 D．116．（3分）（2012秋•天元区期末）计算（﹣1）÷（﹣5）×（﹣）的结果是（）A．﹣1 B．﹣C．﹣25 D．17．（3分）（2010秋•沂水县期末）下列判断中正确的是（）A．3a2bc与bca2不是同类项B．不是整式C．单项式﹣x3y2的系数是﹣1 D．3x2﹣y+5xy2是二次三项式8．（3分）（2014秋•台州校级期末）化简的结果是（）A．﹣7x+B．﹣5x+C．﹣5x+D．﹣5x﹣9．（3分）（2013秋•蜀山区校级期末）已知x2+3x+5的值为9，则代数式3x2+9x﹣2的值为（）A．4 B．6 C．8 D．1010．（3分）（1997•山东）某商品价格a元，降低10%后，又降低了10%，销售量猛增，商店决定再提价20%，提价后这种商品的价格为（）A．a元B．1.08a元C．0.972a元D．0.96a元二、填空题（每题3分）11．（3分）（2010秋•枣强县校级期末）﹣的倒数的绝对值是．12．（3分）（2014秋•香洲区期末）用科学记数法表示13040000，应记作．13．（3分）（2013秋•合肥期中）一个两位数，个位数字为y，十位数字比个位数字大1，那么这个两位数可表示为．14．（3分）（2013秋•合肥期中）如图所示，试以含x的代数式表示阴影部分的面积是．三、解答题15．（4分）（2009秋•延庆县期末）（﹣49）﹣（+91）﹣（﹣5）+（﹣9）．16．（8分）（2013秋•合肥期中）去括号并合并同类项①a﹣（2a﹣2）；②﹣（5x+y）﹣3（2x﹣3y）．17．（5分）（2013秋•蜀山区校级期末）先化简，再求值（4x3﹣x2+5）+（5x2﹣x3﹣4），其中x=﹣2．18．（5分）（2014秋•平武县期末）解方程：．19．（6分）（2014秋•汶上县校级期末）有一种“二十四点”的游戏，其游戏规则是这样的，任取四个1到13之间的自然数，将这四个数（每个数用且只有一次）进行加减乘除四则运算，使其结果等于24．例如：1、2、3、4，可做运算（1+2+3）×4=24，（注意，上述运算与4×（1+2+3）应视为相同方法）现有四个有理数：3、4、﹣6、10，运用上述规则写出三种不同方式的运算，使其结果等于24．解：（1）；（2）；（3）．20．（10分）（2011秋•湄潭县校级期末）某一食品厂从生产的袋装食品中抽出样品20袋，检测每袋的质量是否符合标准，超过或不足的部分分别用正、负数来表示，记录如下表：﹣5 ﹣2 0 1 3 6与标准质量的差值（单位：g）袋数 1 4 3 4 5 3这批样品的平均质量比标准质量多还是少？多或少几克，若标准质量为450克，则抽样检测的总质量是多少？21．（10分）（2013秋•合肥期中）将连续奇数1，3，5，7，9…排列成如图数表（1）十字框中的五个数的和与中间的数23有什么关系？（2）设中间的数为a，用式子表示十字框的五个数字之和．（3）十字框中的五个数和能等于2010吗？若能，请写出这五个数；若不能，请说明理由．22．（10分）（2013秋•合肥期中）为节约用水，某市规定三口之家每月标准用水量为15立方米，超过部分加价收费，假设不超过部分水费为1.5元/立方米，超过部分水费为3元/立方米．（1）请用代数式分别表示这家按标准用水和超出标准用水各应缴纳的水费；（2）如果这家某月用水20立方米，那么该月应交多少水费？2013-2014学年安徽省合肥50中七年级（上）期中数学试卷参考答案与试题解析一、选择题（每题3分）1．（3分）（2015•荆州）﹣2的相反数是（）A．﹣B．﹣2 C．D．2【分析】根据相反数的定义：只有符号不同的两个数叫做互为相反数即可得到答案．【解答】解：﹣2的相反数是2，故选：D．【点评】此题主要考查了相反数，关键是掌握相反数的定义．2．（3分）（2012秋•台州期中）下列各组数中，数值相等的是（）A．﹣23和（﹣2）3B．﹣22和（﹣2）2C．﹣23和﹣32D．﹣110和（﹣1）10【分析】A、根据乘方的意义分别计算，再判断；B、根据乘方的意义分别计算，再判断；C、根据乘方的意义分别计算，再判断；D、根据乘方的意义分别计算，再判断．【解答】解：A、﹣23=﹣8，（﹣2）3=﹣8，相等，此选项符合题意；B、﹣22=﹣4，（﹣2）2=4，不相等，此选项不符合题意；C、﹣23=﹣8，﹣32=﹣9，不相等，此选项不符合题意；D、﹣110=﹣1，（﹣1）10=1，不相等，此选项不符合题意；故选A．【点评】本题考查了有理数的乘方，解题的关键是注意﹣a n与（﹣a）n的区别和联系．3．（3分）（2008•乐山）|3.14﹣π|的值为（）A．0 B．3.14﹣πC．π﹣3.14 D．0.14【分析】首先判断3.14﹣π的正负情况，然后利用绝对值的定义即可求解|．【解答】解：∵3.14﹣π＜0，∴|3.14﹣π|=π﹣3.14．故选C．【点评】此题主要考查了绝对值的定义，解题时先确定绝对值符号中代数式的正负再去绝对值符号．4．（3分）（2014秋•莘县期末）有理数a、b在数轴上的对应的位置如图所示，则（）A．a+b＜0 B．a+b＞0 C．a﹣b=0 D．a﹣b＞0【分析】先根据数轴判断出a、b的正负情况，以及绝对值的大小，然后对各选项分析后利用排除法求解．【解答】解：根据图形可得：a＜﹣1，0＜b＜1，∴|a|＞|b|，A、a+b＜0，故A选项正确；B、a+b＞0，故B选项错误；C、a﹣b＜0，故C选项错误；D、a﹣b＜0，故D选项错误．故选：A．【点评】本题考查了有理数的加法、减法，根据数轴判断出a、b的情况，以及绝对值的大小是解题的关键．5．（3分）（2013秋•合肥期中）一个数是7，另一个数比它的相反数大3．则这两个数的和是（）A．﹣3 B．3 C．﹣10 D．11【分析】根据题意，可求得另一个数为﹣7+3=﹣4，即可求得这两个数的和．【解答】解：由题意得，另一个数为﹣7+3=﹣4，则这两个数的和为：7+（﹣4）=3．故选B．【点评】此题主要考查相反数的意义，一个数的相反数就是在这个数前面添上“﹣”号．6．（3分）（2012秋•天元区期末）计算（﹣1）÷（﹣5）×（﹣）的结果是（）A．﹣1 B．﹣C．﹣25 D．1【分析】除以一个数等于乘以这个数的倒数，再确定符号，约分即可．【解答】解：原式=﹣1××=﹣，故选B．【点评】本题考查了有理数的混合运算，积的符号有负因数的个数确定，这是解此题的关键．7．（3分）（2010秋•沂水县期末）下列判断中正确的是（）A．3a2bc与bca2不是同类项B．不是整式C．单项式﹣x3y2的系数是﹣1 D．3x2﹣y+5xy2是二次三项式【分析】根据同类项概念和单项式的系数以及多项式的次数的概念分析判断．【解答】解：A、3a2bc与bca2是同类项，故错误；B、是整式，故错；C、单项式﹣x3y2的系数是﹣1，正确；D、3x2﹣y+5xy2是3次3项式，故错误．故选：C．【点评】主要考查了整式的有关概念．并能掌握同类项概念和单项式的系数以及多项式的次数的确定方法．8．（3分）（2014秋•台州校级期末）化简的结果是（）A．﹣7x+B．﹣5x+C．﹣5x+D．﹣5x﹣【分析】本题涉及整式的加减乘法运算、去括号法则．解答时根据每个考点作出回答，然后根据整式的加减运算得出结果．【解答】解：原式=x+﹣6x+=﹣5x+故选C．【点评】解决此类题目的关键是熟记去括号法则，熟练运用合并同类项的法则．括号前添负号，括号里的各项要变号．9．（3分）（2013秋•蜀山区校级期末）已知x2+3x+5的值为9，则代数式3x2+9x﹣2的值为（）A．4 B．6 C．8 D．10【分析】先求出x2+3x的值，然后整体代入计算即可得解．【解答】解：根据题意x2+3x+5=9，所以，x2+3x=4，3x2+9x﹣2=3（x2+3x）﹣2=3×4﹣2=10．故选D．【点评】本题考查了代数式求值，整体思想的利用是解题的关键．10．（3分）（1997•山东）某商品价格a元，降低10%后，又降低了10%，销售量猛增，商店决定再提价20%，提价后这种商品的价格为（）A．a元B．1.08a元C．0.972a元D．0.96a元【分析】提价后这种商品的价格=原价×（1﹣降低的百分比）（1﹣百分比）×（1+增长的百分比），把相关数值代入求值即可．【解答】解：第一次降价后的价格为a×（1﹣10%）=0.9a元，第二次降价后的价格为0.9a×（1﹣10%）=0.81a元，∴提价20%的价格为0.81a×（1+20%）=0.972a元，故选C．【点评】考查列代数式，得到第二次降价后的价格是解决本题的突破点；得到提价后这种商品的价格的等量关系是解决本题的关键．二、填空题（每题3分）11．（3分）（2010秋•枣强县校级期末）﹣的倒数的绝对值是．【分析】由倒数的定义得，﹣的倒数是﹣，再由绝对值的性质得出其值．【解答】解：∵﹣的倒数是﹣，﹣的绝对值是，∴﹣的倒数的绝对值是．【点评】此题主要考查倒数与绝对值的概念．12．（3分）（2014秋•香洲区期末）用科学记数法表示13040000，应记作 1.304×107．【分析】科学记数法的表示形式为a×10n的形式，其中1≤|a|＜10，n为整数．确定n的值时，要看把原数变成a时，小数点移动了多少位，n的绝对值与小数点移动的位数相同．当原数绝对值＞1时，n是正数；当原数的绝对值＜1时，n是负数．【解答】解：将13 040 000用科学记数法表示为：1.304×107．故答案为：1.304×107．【点评】此题主要考查了科学记数法的表示方法．科学记数法的表示形式为a×10n的形式，其中1≤|a|＜10，n为整数，表示时关键要正确确定a的值以及n的值．13．（3分）（2013秋•合肥期中）一个两位数，个位数字为y，十位数字比个位数字大1，那么这个两位数可表示为11y+10．【分析】根据题意，先求出十位上的数字，再用十位数字×10+个位数字求出这个两位数．【解答】解：个位上的数字y，十位上的数字比个位上的数字大1，则十位数是10（y+1），则这个数是10（y+1）+y=11y+10．故答案为：11y+10．【点评】此题主要考查了列代数式，解题的关键是正确把握数字的表示方法．14．（3分）（2013秋•合肥期中）如图所示，试以含x的代数式表示阴影部分的面积是4x2+2x．【分析】此题要根据题意列出代数式．由题意得，阴影部分的面积可以分成两个矩形的面积之和，小矩形的面积为2x，大矩形的面积为x•（3x+x）．【解答】解：阴影部分的面积=2x+x•（3x+x）=4x2+2x．【点评】用字母表示数时，要注意写法：①在代数式中出现的乘号，通常简写做“•”或者省略不写，数字与数字相乘一般仍用“×”号；②在代数式中出现除法运算时，一般按照分数的写法来写；③数字通常写在字母的前面；④带分数的要写成假分数的形式．三、解答题15．（4分）（2009秋•延庆县期末）（﹣49）﹣（+91）﹣（﹣5）+（﹣9）．【分析】题目较简单，运算过程中注意去括号时运算符号的变化就可以了．【解答】解：（﹣49）﹣（+91）﹣（﹣5）+（﹣9）=﹣49﹣91+5﹣9=﹣144．【点评】在进行有理数的加减混合运算时，第一步是运用减法法则将减法转化成加法；第二步根据加法法则进行计算．16．（8分）（2013秋•合肥期中）去括号并合并同类项①a﹣（2a﹣2）；②﹣（5x+y）﹣3（2x﹣3y）．【分析】括号前面是负号，去括号是要注意符号的变化，根据合并同类项得法则可得正确的结果．【解答】解：①原式=a﹣2a+2=﹣a+2；②原式=﹣5x﹣y﹣6x+9y=﹣11x+8y．【点评】本题考查去括号与添括号、合并同类项．去括号的方法：去括号时，运用乘法的分配律，先把括号前的数字与括号里各项相乘，再运用括号前是“+”，去括号后，括号里的各项都不改变符号；括号前是“﹣”，去括号后，括号里的各项都改变符号．运用这一法则去掉括号．17．（5分）（2013秋•蜀山区校级期末）先化简，再求值（4x3﹣x2+5）+（5x2﹣x3﹣4），其中x=﹣2．【分析】原式去括号合并得到最简结果，将x的值代入计算即可求出值．【解答】解：原式=4x3﹣x2+5+5x2﹣x3﹣4=3x3+4x2+1，当x=﹣2时，原式=﹣24+16+1=﹣7．【点评】此题考查了整式的加减﹣化简求值，熟练掌握运算法则是解本题的关键．18．（5分）（2014秋•平武县期末）解方程：．【分析】方程去分母，去括号，移项合并，将x系数化为1，即可求出解．【解答】解：去分母得：7﹣14x=9x+3﹣63，移项合并得：﹣23x=﹣67，解得：x=．【点评】此题考查了解一元一次方程，其步骤为：去分母，去括号，移项合并，将未知数系数化为1，求出解．19．（6分）（2014秋•汶上县校级期末）有一种“二十四点”的游戏，其游戏规则是这样的，任取四个1到13之间的自然数，将这四个数（每个数用且只有一次）进行加减乘除四则运算，使其结果等于24．例如：1、2、3、4，可做运算（1+2+3）×4=24，（注意，上述运算与4×（1+2+3）应视为相同方法）现有四个有理数：3、4、﹣6、10，运用上述规则写出三种不同方式的运算，使其结果等于24．解：（1）3×（4+10﹣6）；（2）10﹣3×（﹣6）﹣4；（3）4﹣（﹣6）÷3×10．【分析】（1）根据数据特点4、﹣6、10三数之和是8，再乘以3正好等于24；（2）3乘以﹣6再加上4等于﹣14，再与10运算可以得到24；（3）﹣6除以3乘以10得到﹣20，再与4运算可以得到24．【解答】解：（1）3×（4+10﹣6）=3×（14﹣6）=3×8=24；（2）10﹣3×（﹣6）﹣4=10+18﹣4=28﹣4=24；（3）4﹣（﹣6）÷3×10=4﹣（﹣20）=24．【点评】本题属于棋牌游戏，要求学生不仅要熟练掌握有理数的加减乘除混合运算，还要有比较快的反应能力，是较好的训练思维能力的题目．20．（10分）（2011秋•湄潭县校级期末）某一食品厂从生产的袋装食品中抽出样品20袋，检测每袋的质量是否符合标准，超过或不足的部分分别用正、负数来表示，记录如下表：与标准质量的差值（单﹣5 ﹣2 0 1 3 6位：g）袋数 1 4 3 4 5 3这批样品的平均质量比标准质量多还是少？多或少几克，若标准质量为450克，则抽样检测的总质量是多少？【分析】根据表格中的数据计算与标准质量的差值的总数，再除以20，如果是正数，即多，如果是负数，即少；根据标准质量结合前边的结论进行计算抽样检测的总质量．【解答】解：与标准质量的差值的和为﹣5×1+（﹣2）×4+0×3+1×4+3×5+6×3=24，其平均数为24÷20=1.2，即这批样品的平均质量比标准质量多，多1.2克．则抽样检测的总质量是（450+1.2）×20=9024（克）．【点评】此题要理解统计图，会计算加权平，另外计算时要细心．21．（10分）（2013秋•合肥期中）将连续奇数1，3，5，7，9…排列成如图数表（1）十字框中的五个数的和与中间的数23有什么关系？（2）设中间的数为a，用式子表示十字框的五个数字之和．（3）十字框中的五个数和能等于2010吗？若能，请写出这五个数；若不能，请说明理由．【分析】（1）算出这5个数的和，和23进行比较；（2）由图易知同一竖列相邻的两个数相隔16，横行相邻的两个数相隔2．用中间的数表示出其他四个数，然后相加即可；（3）求出（2）中的代数式的和等于5a，可列方程求出中间的数，然后根据方程的解的情况就可以作出判断．【解答】解：①7+21+23+25+39=23×5，故十字框中的五个数的和=中间的数23的5倍；②设中间的数为a，则十字框的五个数字之和为：a﹣16+a﹣2+a+a+2+a+16=5a，故5个数字之和为5a；③不能，5a=2010，解得a=402．而a不能为偶数，故十字框框住的5个数字之和不能等于2010．【点评】本题考查了一元一次方程的应用．此题注意结合数的排列规律发现左右和上下相邻两个数之间的大小关系，从而完成解答．22．（10分）（2013秋•合肥期中）为节约用水，某市规定三口之家每月标准用水量为15立方米，超过部分加价收费，假设不超过部分水费为1.5元/立方米，超过部分水费为3元/立方米．（1）请用代数式分别表示这家按标准用水和超出标准用水各应缴纳的水费；（2）如果这家某月用水20立方米，那么该月应交多少水费？【分析】（1）设按标准用水为a，根据题目中的条件，可求出标准用水水费为1.5a 元（0＜a≤15），超出标准用水各应缴纳的水费（3a﹣22.5）元（a＞15）；（2）根据上述关系式可求处这家某月用水20立方米的应缴水费．【解答】解：（1）标准用水水费为”1.5a 元（0＜a≤15）超标用水水费：3a﹣15×1.5=（3a﹣22.5）元（a＞15）；（2）该月应交水费=15×1.5+3（20﹣15）=37.5（元）．答：该月应交水费为37.5元．【点评】解题的关键是按照题目中的已知条件，根据用水数量的不同列出相应的关系式．参与本试卷答题和审题的老师有：sd2011；王岑；Joyce；蓝月梦；星期八；lf2-9；张其铎；郝老师；py168；疯跑的蜗牛；lanchong；wangming；心若在；73zzx；天马行空；117173；dbz1018；sks；智波；HJJ；wdxwzk（排名不分先后）菁优网2016年6月26日第1页（共1页）。