九上期末测试题
人教版九年级数学上册期末测试题(附参考答案)
人教版九年级数学上册期末测试题（附参考答案）满分120分考试时间120分钟一、选择题：本大题共10个小题，每小题3分，共30分。
每小题只有一个选项符合题目要求。
1.方程x2＋4x＋3＝0的两个根为( )A．x1＝1，x2＝3B．x1＝－1，x2＝3C．x1＝1，x2＝－3D．x1＝－1，x2＝－32.一个口袋里装有4个白球，5个黑球，除颜色外，其余如材料、大小、质量等完全相同，随意从中抽出一个球，抽到白球的概率是( )A．49B．59C．14D．193.将抛物线y＝x2向右平移3个单位长度，再向上平移4个单位长度，得到的抛物线是( )A．y＝(x－3)2＋4 B．y＝(x＋3)2＋4C．y＝(x＋3)2－4 D．y＝(x－3)2－44.如图，在方格纸中，将Rt△AOB绕点B按顺时针方向旋转90°后得到Rt△A′O′B，则下列四个图形中正确的是( )A BC D5.如图，AB切⊙O于点B，连接OA交⊙O于点C，BD∥OA交⊙O于点D，连接CD.若∠OCD＝25°，则∠A的度数为( )A．25°B．35°C．40°D．45°6.若关于x的一元二次方程x2－8x＋m＝0的两根为x1，x2，且x1＝3x2，则m的值为( )A．4 B．8C．12 D．167.如图，抛物线y＝ax2＋bx＋c(a≠0)与x轴交于点A，B，与y轴交于点C，对称轴为直线x＝－1.若点A的坐标为(－4，0)，则下列结论正确的是( )A．2a＋b＝0B．4a－2b＋c>0C．x＝2是关于x的一元二次方程ax2＋bx＋c＝0(a≠0)的一个根D．点(x1，y1)，(x2，y2)在抛物线上，当x1>x2>－1时，y1<y2<08.图1是一把扇形纸扇，图2是其完全打开后的示意图，外侧两竹条OA和OB 的夹角为150°，OA的长为30 cm，贴纸部分的宽AC为18 cm，则CD⏜的长为( )A．5π cm B．10π cmC．20π cm D．25π cm9.如图，⊙O与正五边形ABCDE的两边AE，CD相切于A，C两点，则∠AOC的度数是( )A．144°B．130°C．129°D．108°10.在如图所示的运算程序中，若开始输入x的值为48，我们发现第一次输出的结果为24，第二次输出的结果为12……则第2 023次输出的结果为( )A．6 B．3C．622 021D．322 022二、填空题：本题共6个小题，每小题3分，共18分。
江苏省无锡市锡山区天一中学2025届英语九上期末学业水平测试试题含解析
江苏省无锡市锡山区天一中学2025届英语九上期末学业水平测试试题考生请注意：1．答题前请将考场、试室号、座位号、考生号、姓名写在试卷密封线内，不得在试卷上作任何标记。
2．第一部分选择题每小题选出答案后，需将答案写在试卷指定的括号内，第二部分非选择题答案写在试卷题目指定的位置上。
3．考生必须保证答题卡的整洁。
考试结束后，请将本试卷和答题卡一并交回。
Ⅰ. 单项选择1、— Where is Mr. Wu?— He together with his students __________ singing by the lake .A．is practising B．are practising C．will practise D．would practise2、---I can’t find Mr. Crisp in the office. Do you know where ________?---Oh, Mr. Crisp ________ to New York for an important conference.A．he is; has gone B．is he; has gone C．he is; went D．is he; has been3、--- Excuse me, could you tell me ?--- It’s about 10 minutes by taxi.A．how far it is to go to Pukou Railway StationB．how far is it to go to Pukou Railway StationC．how long it takes to go to Pukou Railway StationD．how long does it take to go to Pukou Railway Station4、---I called you at about ten o’clock this morning. But you didn’t answer the phone.---Oh, I’m sorry. _________.A．I was having a meeting with clients B．I had a meeting with clientsC．I have had a meeting with clients D．I would have a meeting with clients5、—I’m so ________.Can you give me something to have right now?—OK.Here is some orange.A．thirsty B．hungry C．sleepy D．silly6、Problems and worries are normal in life. When we have a lot of worries, someone advises us ________ our parents about them because they have more experience.A．talking to B．to talk to C．talk to7、It ________ them about one hour to get to the center of the city by underground.A．used B．paid C．spent D．took8、— Mr Wu, must I finish this exercise today?— No, you________. You can hand it in tomorrow afternoon.A．shouldn’t B．don’t have to C．mustn’t D．can’t9、--- Why don’t you buy your son a new mobile phone, Mrs. Li?--- Because he _______ his phone for less than one year.A．has had B．has bought C．has got D．has taken10、Is there any difference between your idea and ________?A．he B．his C．she D．herⅡ. 完形填空11、One day Mrs. Smith was sitting in her doctor‟s waiting room when a young boy and his mother entered the office. The young boy caught Mrs. Smith‟s attention 31 he wore a patch over one eye. She felt 32 at how natural he seemed to be even though he lost one of his eyes.The doctor‟s office was very busy that day, so Mrs. Smith had an opportunity to have a chat with the boy‟s mother while he played with his toy soldiers.In the end, Mrs. Smith took the chance to ask the little boy what had happened to his eye. He 33 her question for a long moment, and then replied, lifting the patch, “There‟s nothing wrong with my eye. I‟m a pirate (海盗)!” The n he returned to his 34 .Mrs. Smith was there because she had lost her leg from the knee down in a car accident. Her 35 today was to check whether it had been OK enough to be fitted with a prosthetic (假肢). The loss had been 36 to her. Try as she would to be brave, she felt like a disabled fool. She knew that this loss should not have a bad effect on her life, but emotionally, she could not get out of the fear and sadness.The word “pirate” changed her life. Immediate ly, she saw herself dressed as Long John Silver, a famous pirate, standing aboard a pirate ship. She stood with her legs planted wide apart. The ship rocked under the storm‟s force. 37 she stood firmly (稳固地). She smiled into a storm.At that moment, the disabled image was replaced and her courage 38 .She regarded the young boy with respect, who was just busy with his soldiers.A few minutes later, the nurse called her. As she 39 on her crutches, theboy noticed her leg. “Hey lady,” he called, “What‟s wrong with your leg?” the young boy‟s mother felt very sorry for her son‟s question.Mrs. Smith looked down at her shortened leg for a moment. Then she replied with a smile, “Nothing. I‟m a 40 , too.”1．A．however B．because C．so D．although2．A．bored B．angry C．surprised D．tired3．A．answered B．described C．explained D．considered4．A．game B．choice C．action D．course5．A．dream B．direction C．trip D．prediction6．A．terrible B．lucky C．normal D．natural7．A．Hardly B．Still C．Ever D．Never8．A．developed B．broke C．lost D．returned9．A．balanced B．fell C．fixed D．knocked10．A．solider B．doctor C．mother D．pir ateⅢ. 语法填空12、Have you ever been cycling(骑自行车运动)? This spring my elder brother and I 1．(spend) a long weekend cycling in the countryside. We rode2．(slow) along because we hadn't come to break any speed records, or to do sports. We just wanted3．(get) some fresh air and a break from schoolwork. We really had a great time4．(ride) along country roads. And there was one of the best things about our trip that made us happy: every few5．(kilometer) there was a village where we could find everything we needed.All the local people were really friendly. However, on the 6．(two) day, something happened. We were going down the hill when my brakes(剎车)started making a 7．(noisy), but I didn't mind at all. At midnight we were woken by the noise in the hotel. We were tired when we set off the next morning, but soon felt 8．(cheer) when the sun came out.What we enjoyed9．(our) most about cycling is—it's simple and fun. I think nothing is10．(good) than cycling if you're looking for a break that is active and cheap. Why not have a try?Ⅳ. 阅读理解A13、Let’s suppose it’s a common day of 2060. Of course，things have changed and life is very different.Trips to the moon are being made every day. Taking a holiday on the moon today is as easy as taking a holiday in Europe in 2010’s. At a number of scenic spots(风景胜地) on the moon，many hotels have been built. In order that everyone can enjoy the beautiful scenery on the moon，every room has at least one picture window. Everything imaginable is provided for the entertainment(娱乐) of the young and old.What are people eating now? People are still eating food. But many foods now come in pill(药片) form，and the foodthat goes into the pill comes mainly from green plants.Because people in the world today are many more than those about fifty years ago，most of the earth’s surface has to be filled. The deserts areirrigatedwith water and crops are no longer eaten by pests(害虫). The harvest is always good. Farming，of course，is very highly developed. Very few people have to work on the farm. It is possible to run the farm by just using a few computers.People are now largely vegetarians，and they eat only bread，vegetables，fruit and so on and they don’t eat meat or fish. You see，as the number of people increases，the number of animals decreases. So people have to be vegetarians. We are healthier both in our bodies and in our minds，and we know how to deal with all kinds of illnesses. No one has to be ill any more.Such would be our life in 2060.1．What will be on the moon in 2060 according to the passage?A．Many green plants B．Many interesting placesC．Many wild animals D．Many pests2．What’s the meaning of the underlined word “ irrigated”?A．冲刷B．淹没C．灌溉D．烦恼3．Which of the following is TRUE according to the passage?A．People only eat foods in pill formB．People don’t have plenty of crops.C．People run the farms by using high technology.D．People will not die.4．Why do people have to be vegetarians in 2060?A．Because there will be more people and fewer animals.B．Because vegetables can make the patients well.C．Because they want to be healthier.D．Because there will be no other animals.B14、A man died and was on his way to another world, either Heaven ( 天堂) or hell ( 地狱) . He saw a very beautiful palace half way and the owner of the palace asked him to stay and live in the palace.The man said, “I have been working hard during my life and now I just want to eat and sleep without any work.”The owne r of the palace said, “If so, there is nowhere else better than here for you. There is enough delicious food in my palace and you can eat whatever you want without anyone stopping you. Moreover, nothing needs to be done by you.”Then, the man stayed in the palace.At the beginning, the man felt very happy, eating and sleeping, without thinking about other things. But gradually, he felt a bit lonely and bored. So he went to the owner and said, “It is too boring to live by just eating and sleeping every day. Now I have no interest in this kind of life any more. Could you help me find a job?”The owner replied, “Sorry, there is no job here at all.”After another several months, the man could not stand his present life and went to the owner again and said, “I re ally can not stand this sort of life any more. If you do not offer me a job, I would like to go to hell instead of living here.”The owner of the palace laughed loudly and then said, “Do you think it is Heaven here? It is actually Hell!”1．The man couldn’t stand the present life in the palace because_________.A．he must eat delicious food everydayB．had to help othersC．as time went on ,he got boredD．the owner of the palace was unfriendly2．According to the passage, which statements is Right?A．The beautiful palace the man lived for several months is Heaven.B．Someone would stop the man ,if he ate more.C．The man thought he would live in Hell rather than heaven if he couldn’t get a job.D．In fact, in Heaven the man could eat and sleep without any work.3．Wh at’s the title of the passage?A．A hard-working man B．Hell and HeavenC．What you want in Heaven D．Hell is better than HeavenC15、Y oung Music Scene ConcertYoung musicians from all over Germany perform at Y oung Scene Concert at Berlin’s famous Quasim odo music hall. The concert is part of the Berlin Festival.Time: 15—20 Nov.Place: 45, 18756 Berlin, GermanyCost: VariousEmail:*****************Phone: +34 (0) 45 839 5986Young Music Scene ConcertYoung musicians from all over Germany perform at Y ou ng Scene Concert at Berlin’s famous Quasimodo music hall. The concert is part of the Berlin Festival.Time: 15—20 Nov.Place: 45, 18756 Berlin, GermanyCost: VariousEmail:*****************Phone: +34 (0) 45 839 5986Documentary Film MonthCinemas, schools and libraries across France and the French-speaking world take part in November’s Documentary Film Month. About 120, 000 visitors take part each year.Time: 1—20 Mar.Place: 25 Road Pyramids, 75001 ParisCost: VariousPhone: +12 (0)1 43 38 19 73Email:****************************Documentary Film MonthCinemas, schools and libraries across France and the French-speaking world take part in November’s Documentary Film Month. About 120, 000 visitors take part each year.Time: 1—20 Mar.Place: 25 Road Pyramids, 75001 ParisCost: VariousPhone: +12 (0)1 43 38 19 73Email:****************************Craft (工艺) ShowYou can come to the show twice a year, in spring and at Christmas. There are hundreds of artisans (手艺人) from across Canada selling jewellery, pottery, glass, ironwork and clothing.Time: 26 Nov.—7 Dec.Mon.—Fri. 11 am—10 pmSat. 10 am—8 pmSun. 9 am—6 pmPlace: Direct Energy CentreCost: $10Phone: +7 658 198 3245Email:************************Craft (工艺) ShowYou can come to the show twice a year, in spring and at Christmas. There are hundreds of artisans (手艺人) from across Canada selling jewellery, pottery, glass, ironwork and clothing.Mon.—Fri. 11 am—10 pmSat. 10 am—8 pmSun. 9 am—6 pmPlace: Direct Energy CentreCost: $10Phone: +7 658 198 3245Email:************************Canada BloomsToronto Garden and Flower ShowThe Canada Blooms Show every year at the Metro Toronto Convention Centre is the country’s largest indoor garden show.Time: Mar. 9 am—6 pmSun. 11 am—5 pmPlace: Metro Toronto Convention CentreCost: $18; under 12 freePhone: +1 235 447 8768Email:**************Canada BloomsToronto Garden and Flower ShowThe Canada Blooms Show every year at the Metro Toronto Convention Centre is the country’s largest indoor garden show.Sun. 11 am—5 pmPlace: Metro Toronto Convention CentreCost: $18; under 12 freePhone: +1 235 447 8768Email:**************1．People can enjoy music at Young Scene Concert from____________.A．1—20 Mar. B．15—20 Nov.C．26 Nov—7 Dec. D．1 Mar—20 Nov.2．You can e-mail ________if you want to see Documentary Film.A．**************B．************************C．****************************D．*****************3．If two adults and two boys of 9 want to see Flower Show and Craft Show, it will cost them ____________.A．$40 B．$56 C．$76 D．$112D16、People have strange ideas about food. For example, the tomato is a kind of very delicious vegetable. It is one of the useful plants that can be prepared in many ways. It has rich nutrition(营养) and vitamin (维他命) in it. But in the 18th century, Americans never ate tomatoes. They grew them in their gardens because tomato plants are so pretty. But they thought the vegetable was poisonous(有毒的). They called tomatoes “poison apples”.President(总统) Thomas Jefferson, however, knew that tomatoes were good to eat. He was a learned man. He had been to Paris, where he learned to love the taste of tomatoes. He grew many kinds of tomatoes in his garden. The President taught hi s cook a way for a cream of tomato soup. This beautiful pink soup was served at the President’s party. The guests thought the soup tasted really good. They never thought their president would serve his honored guests poison apples. Jefferson never spoke to his honored guests about the fact.1．After you read the passage, which of the following do you think is true?A．Americans never ate tomatoes in the 18th century while they began to plant them.B．Americans didn’t eat tomatoes before 19th century.C．Even no w Americans don’t eat tomatoes.D．In the 18th century Americans ate a lot of tomatoes.2．The passage tells us that Jefferson was a President of ______?A．a European country B．England C．France D．the United States3．Jefferson learned that tomatoes were good to eat ___.A．while he was in Paris B．when he was a little boyC．because his parents told him so D．from books4．From the passage we know all the honored guests invited by Jefferson were _____.A．people from other countries B．from FranceC．people of his own country D．men only5．According to the passage, which of the following is NOT true?A．All of the guests knew the soup that was served at the President’s party was made of tomatoes.B．All of the guests thought the soup which was prepare d by the President’s cook was nice.C．All of the guests thought the taste of the beautiful pink soup was nice.D．All the guests didn’t know that their president would serve his honored guests with “poison apples”E17、My house is made of wood, glass and stone. It is also made of software.If you come to visit, you’ll probably be surprised when you come in. Someone will give you an electronic PIN to wear. This PIN tells the house who and where you are. The house uses this information to give you what you need. When it’s dark outside, the PIN turns on the lights nearest you, and then turns them off as you walk away from them. Music moves with you too. If the house knows your favorite music, it plays it. The music seems to be everywhere, but in fact other people in the house hear different music or no music. If you get a telephone call, only the nearest telephone rings.Of course, you are also able to tell the house if you want something. There is a home control console (控制台), a small machine that turns things on and off around you.The PIN and the console are new ideas, but they are in fact like many things we have today. If you want to go to a movie, you need a ticket. If I give you my car keys, you can use my car. The car works for you because you have the keys. My house works for you because you wear the PIN or hold the console.I believe that several years from now on, most new homes will have the systems that I’ve put in my house. The systems will probably be even bigger and better than the ones I’ve put in today.I like to try new ideas. I know that some of my ideas will work better than others. But I hope that one day I will stop thinking of these systems as new, and ask myself instead, “How did I live without them?”1．The writer’s house is NOT made of ________.A．bricks B．wood C．glass D．software2．What does the passage mainly discuss?A．How to develop a new system. B．The function of the PIN.C．A home for the future. D．Easy life in the future.3．What is the writer’s purpose of writing the four th paragraph?A．To let readers know why his ideas are new.B．To explain what the functions of the PIN and the console are.C．To explain the importance of the PIN and the console.D．To let readers know how special his house is.4．The writer’s new house is d ifferent from ordinary ones mainly because ________.A．it has your favourite music following youB．you can make a telephone call anywhereC．the writer is able to change his new idea into practiceD．it has been controlled by computers5．What is the writer most likely to be according to the passage?A．An IT expert. B．A famous engineer.C．A game player. D．An experienced teacher.F18、Are you sometimes a little tired and sleepy in the early afternoon? Many people feel this way after lunch. They may think that eating lunch is the cause of the sleepiness. Or, in summer, they may think it is the heat. However, the real reason lies inside their bodies. At that time—about eight hours after you wake up—your body temperature goes down. This is what makes you slow down and feel sleepy.Scientists have tested sleep habits in experiments where there was no night or day. The people in these experiments almost always followed a similar sleeping pattern. They slept for one long period and then for one short period about eight hours later.In many parts of the world, people takenapsin the middle of the day. This is especially true in warmer climates, where the heat makes work difficult in the early afternoon. Researchers are now saying that naps are good for everyone in anyclimate. A daily nap gives one a more rested body and mind and therefore is good for health in general. In countries where naps are traditional, people often suffer(遭受) less from problems such as heart disease. Many working people, unfortunately, have no time to take naps. Though doctors may advise taking naps, employers do not allow it!If you do have the chance, however, here are a few tips about making the most of your nap. Remember that the best time to take a nap is about eight hours after you get up. A short sleep too late in the day may only make you feel more tired and sleepy afterward. This can also happen if you sleep for too long. If you do not have enough time, try a short nap—even ten minutes of sleep can be helpful.1．Why do you sometimes feel sleepy in the early afternoon?A．Because it’s very hot in summer.B．Because you eat too much for lunch.C．Because you didn’t have a good sleep last night.D．Because your body temperature goes down at that time.2．What advice does the writer give on taking a nap?A．If your time is limited, a short nap can also help.B．Only people in warmer climate need to take a nap.C．Y ou’d better take a nap about an hour after you have lunch.D．Y ou can sleep as long as you like so that you won’t feel tired or sleepy.3．What can we learn about “naps” according to the third paragraph?A．Doctors need to take naps while employers don’t.B．Taking naps is helpful for people’s health in spring and summer.C．If you take naps every day, you’ll have less risk of heart disease.D．All the people in warmer climates take naps in the middle of the day.4．What can we infer(推断) from the passage?A．Y ou will feel less sleepy if you sleep for a long time.B．Taking a nap whenever you want will do good to your health.C．If you get up at 6:30 am, you’d better take a nap at about 2:30 pm.D．Sleeping for eight hours and you’ll feel sleepy a short period later.5．What would be the best title for the text?A．Just For a Rest. B．All For a Nap.C．A Special Sleep Pattern. D．Taking Naps in Warmer Climate.Ⅴ.书面表达19、书面表达我的英语学习初中即将毕业，你在英语学习方面积累了较多的经验与方法，请你向你的表弟介绍你的做法，根据下面表格中的内容，按要求用英语写一篇短文，要求：1．语句通顺，意思连贯，语法正确，书写规范；2．必须包含表格中所有内容，并作适当发挥3．行文中不得出现真实人名、校名或地名；4．词数80－100。
2025届南昌市重点中学数学九上期末综合测试试题含解析
2025届南昌市重点中学数学九上期末综合测试试题注意事项1．考生要认真填写考场号和座位序号。
2．试题所有答案必须填涂或书写在答题卡上，在试卷上作答无效。
第一部分必须用2B 铅笔作答；第二部分必须用黑色字迹的签字笔作答。
3．考试结束后，考生须将试卷和答题卡放在桌面上，待监考员收回。
一、选择题（每题4分，共48分）1．已知点()11,A y ，()22,B y ，()34,C y ，在二次函数26y x x c =-+的图象上，则1y ，2y ，3y 的大小关系是（ ） A ．213y y y <<B ．123y y y <<C ．312y y y <<D ．321y y y << 2．如图，AB 是O 的直径，且4AB =，C 是O 上一点，将弧AC 沿直线AC 翻折，若翻折后的圆弧恰好经过点O ，取 3.14π≈，2 1.41≈，3 1.73≈，那么由线段AB 、AC 和弧BC 所围成的曲边三角形的面积与下列四个数值最接近的是（ ）A ．3.2B ．3.6C ．3.8D ．4.23．下列函数中属于二次函数的是( )A ．y ＝12xB ．y ＝2x 2-1C ．y ＝23x +D ．y ＝x 2＋1x＋1 4．如果关于x 的一元二次方程x 2+4x+a=0的两个不相等实数根x 1，x 2满足x 1x 2﹣2x 1﹣2x 2﹣5=0，那么a 的值为（ ） A ．3 B ．﹣3C ．13D ．﹣13 5．下列关于抛物线()=-+2y 2x 31有关性质的说法，正确的是（ ）A ．其图象的开口向下B ．其图象的对称轴为3x =-C ．其最大值为1D ．当3x <时，y 随x 的增大而减小6．如图，△OAB ∽△OCD ，OA ：OC ＝3：2，△OAB 与△OCD 的面积分别是S 1与S 2，周长分别是C 1与C 2，则下列说法正确的是（ ）A ．123 2C C =B．1232SS=C．32OBCD=D．32OAOD=7．已知两圆半径分别为6.5cm和3cm，圆心距为3.5cm，则两圆的位置关系是（）A．相交B．外切C．内切D．内含8．抛物线y＝ax2＋bx＋c(a≠0)的对称轴为直线x＝－1，与x轴的一个交点在(－3，0)和(－2，0)之间，其部分图象如图，则下列结论：①4ac－b2＜0；②2a－b＝0；③a＋b＋c＜0；④点(x1，y1)，(x2，y2)在抛物线上，若x1＜x2，则y1＜y2 .正确结论的个数是( )A．1 B．2 C．3 D．49．下列对于二次根式的计算正确的是( )A．336+=B．233-＝2C．233÷＝2 D．233⨯＝1810．下列计算，正确的是（）A．a2·a3=a6B．3a2-a2=2 C．a8÷a2=a4D．(a2)3=a611．已知关于x的一元二次方程2230x x k--=有一个根为1,则另一个根为（）A．52-B．12C．12-D．1-12．已知反比例函数y=的图象经过点P（﹣2，3），则下列各点也在这个函数图象的是（）A．（﹣1，﹣6）B．（1，6）C．（3，﹣2）D．（3，2）二、填空题（每题4分，共24分）13．在△ABC中，AB=AC=5，BC=8，若∠BPC=12∠BAC，tan∠BPC=_______________.14．如图，已知⊙O的半径是2，点A、B、C在⊙O上，若四边形OABC为菱形，则图中阴影部分面积为_____．15．已知点P 是线段AB 的黄金分割点，AP ＞PB ．若AB ＝2，则AP ＝_____．16．已知点A(－3，m )与点B(2，n )是直线y ＝－23x ＋b 上的两点，则m 与n 的大小关系是___． 17．如图，在□ABCD 中，AB ＝5，AD ＝6，AD 、AB 、BC 分别与⊙O 相切于E 、F 、G 三点，过点C 作⊙O 的切线交AD 于点N ，切点为M ．当CN ⊥AD 时，⊙O 的半径为____．18．连掷两次骰子，它们的点数都是4的概率是__________．三、解答题（共78分）19．（8分）已知关于x 的一元二次方程mx 2－2x ＋1＝0.(1)若方程有两个实数根，求m 的取值范围；(2)若方程的两个实数根为x 1，x 2，且x 1x 2－x 1－x 2＝12，求m 的值． 20．（8分）如图所示的双曲线是函数3(m y m x-=为常数，0x >)图象的一支若该函数的图象与一次函数1y x =+的图象在第一象限的交点为()2,A n ，求点A 的坐标及反比例函数的表达式．21．（8分）用配方法解下列方程.(1) 2310x x --=;(2) ()()221327x x x -=+-.22．（10分）我市某蔬菜生产基地在气温较低时，用装有恒温系统的大棚栽培一种在自然光照且温度为18C ︒的条件下生长最快的新品种．下图是某天恒温系统从开启到关闭及关闭后，大棚内温度y （°C ）随时间x （小时）变化的函数图象，其中BC 段是双曲线k y x=的一部分．请根据图中信息解答下列问题： （1）恒温系统在这天保持大棚内温度18C ︒的时间有________小时；（2）当15x =时，大棚内的温度约为多少度？23．（10分）某商品市场销售抢手，其进价为每件80元，售价为每件130元，每个月可卖出500件；据市场调查，若每件商品的售价每上涨1元，则每个月少卖2件(每件售价不能高于240元)．设每件商品的售价上涨x 元(x 为正整数)，每个月的销售利润为y 元．(1)求y 与x 的函数关系式，并直接写出自变量x 的取值范围；(2)每件商品的涨价多少元时，每个月可获得最大利润？最大的月利润是多少元？(3)每件商品的涨价多少元时，每个月的利润恰为40000元？根据以上结论，请你直接写出x 在什么范围时，每个月的利润不低于40000元？24．（10分）已知：如图，在△ABC 中，D 是BC 边上的一点，E 是AD 的中点，过点A 作BC 的平行线交于BE 的延长线于点F ，且AF=DC ，连接CF ．（1）求证：D 是BC 的中点；（2）如果AB=AC ，试判断四边形ADCF 的形状，并证明你的结论．25．（12分）有这样一个问题，如图1，在等边ABC ∆中，4AB =，D 为BC 的中点，E ，F 分别是边AB ，AC 上的动点，且60EDF ∠=︒，若3BE AF +=，试求BE 的长．爱钻研的小峰同学发现，可以通过几何与函数相结合的方法来解决这个问题，下面是他的探究思路，请帮他补充完整．（1）注意到ABC ∆为等边三角形，且60EDF ∠=︒，可得BED CDF ∠=∠，于是可证BED CDF ∆∆∽，进而可得BE BD CD CF=，注意到D 为BC 中点，2BD CD ==，因此BE 和CF 满足的等量关系为______． （2）设BE x =，AF y =，则x 的取值范围是______．结合（1）中的关系求y 与x 的函数关系．（3）在平面直角坐标系xOy 中，根据已有的经验画出y 与x 的函数图象，请在图2中完成画图．（4）回到原问题，要使3BE AF +=，即为3x y +=，利用（3）中的图象，通过测量，可以得到原问题的近似解为BE =______（精确到0.1）26．国务院办公厅在2015年3月16日发布了《中国足球发展改革总体方案》，这是中国足球史上的重大改革，为进一步普及足球知识，传播足球文化，我市某区在中小学举行了“足球在身边”知识竞赛，各类获奖学生人数的比例情况如图所示，其中获得三等奖的学生共50名，请结合图中信息，解答下列问题：（1）获得一等奖的学生人数；（2）在本次知识竞赛活动中，A ，B ，C ，D 四所学校表现突出，现决定从这四所学校中随机选取两所学校举行一场足球友谊赛，请用画树状图或列表的方法求恰好选到A ，B 两所学校的概率．参考答案一、选择题（每题4分，共48分）1、D【分析】由抛物线开口向上且对称轴为直线x ＝3知离对称轴水平距离越远，函数值越大，据此求解可得．【详解】∵二次函数26y x x c =-+中a ＝1＞0，∴抛物线开口向上，有最小值．∵x ＝−2b a ＝3， ∴离对称轴水平距离越远，函数值越大， ∵由二次函数图象的对称性可知4−3＜3−2＜3−1，∴321y y y <<．故选：D ．【点睛】本题主要考查二次函数图象上点的坐标特征，解题的关键是掌握二次函数的图象与性质．2、C【分析】作OE ⊥AC 交⊙O 于F ，交AC 于E ，连接CO ，根据折叠的性质得到OE ＝12OF ，根据直角三角形的性质求出∠CAB ，再得到∠COB ，再分别求出S △ACO 与S 扇形BCO 即可求解.．【详解】作OE ⊥AC 交⊙O 于F ，交AC 于E ，由折叠的性质可知，EF ＝OE ＝12OF ， ∴OE ＝12OA ， 在Rt △AOE 中，OE ＝12OA ， ∴∠CAB ＝30°，连接CO ，故∠BOC=60°∵4AB =∴r=2，OE=1,AC=2AE=2×2221-=23∴线段AB 、AC 和弧BC 所围成的曲边三角形的面积为S △ACO +S 扇形BCO =21602360AC OE r π⨯+⨯⨯=211231226π⨯⨯+⨯⨯=233π+≈3.8 故选C.【点睛】本题考查的是翻折变换的性质、圆周角定理，扇形的面积求解，解题的关键是熟知折叠是一种对称变换，折叠前后图形的形状和大小不变，位置变化，对应边和对应角相等．3、B【解析】根据反比例函数的定义，二次函数的定义，一次函数的定义对各选项分析判断后利用排除法求解．【详解】解：A. y＝12x是正比例函数，不符合题意；B. y＝2x2-1是二次函数，符合题意；C. yD. y＝x2＋1x＋1不是二次函数，不符合题意．故选：B．【点睛】本题考查了二次函数的定义，解题关键是掌握一次函数、二次函数、反比例函数的定义．4、B【分析】【详解】∵x1，x2是关于x的一元二次方程x2+4x+a=0的两个不相等实数根，∴x1+x2=﹣4，x1x2=a．∴x1x2﹣2x1﹣2x2﹣5=x1x2﹣2（x1+x2）﹣5=a﹣2×（﹣4）﹣5=0，即a+1=0，解得，a=﹣1．故选B5、D【分析】根据抛物线的表达式中系数a的正负判断开口方向和函数的最值问题，根据开口方向和对称轴判断函数增减性.【详解】解：∵a=2>0，∴抛物线开口向上，故A选项错误；抛物线的对称轴为直线x=3，故B选项错误；抛物线开口向上，图象有最低点，函数有最小值，没有最大值，故C选项错误；因为抛物线开口向上，所以在对称轴左侧，即x<3时，y随x的增大而减小,故D选项正确.故选：D.【点睛】本题考查二次函数图象和性质，掌握图象特征与系数之间的关系即数形结合思想是解答此题的关键.6、A【分析】根据相似三角形的性质判断即可．【详解】解：∵△OAB ∽△OCD ，OA ：OC ＝3：2， ∴1232C C =，A 正确； ∴1294S S =，B 错误； ∴32OBOD =，C 错误；∴OA ：OC ＝3：2，D 错误；故选：A ．【点睛】本题主要考查相似三角形的性质，熟练掌握相似三角形的性质是解题的关键．7、C【解析】先求两圆半径的和与差，再与圆心距进行比较，确定两圆的位置关系．【详解】∵两圆的半径分别为6.5cm 和3cm ，圆心距为3.5cm ，且6.5﹣3＝3.5，∴两圆的位置关系是内切．故选：C ．【点睛】考查了由数量关系来判断两圆位置关系的方法．设两圆的半径分别为R 和r ，且R ≥r ，圆心距为d ：外离d ＞R+r ；外切d ＝R+r ；相交R ﹣r ＜d ＜R+r ；内切d ＝R ﹣r ；内含d ＜R ﹣r ．8、C【分析】根据二次函数图像与b 2－4ac 的关系、对称轴公式、点的坐标及增减性逐一判断即可.【详解】解：①由图可知，将抛物线补全，抛物线y ＝ax 2＋bx ＋c (a≠0)与x 轴有两个交点∴b 2－4ac ＞0∴4ac －b 2＜0，故①正确；②∵抛物线y ＝ax 2＋bx ＋c(a≠0)的对称轴为直线x ＝－1 ∴12b a-=- 解得：2b a =∴2a －b ＝0，故②正确；③∵抛物线y ＝ax 2＋bx ＋c(a≠0)的对称轴为直线x ＝－1，与x 轴的一个交点在(－3，0)和(－2，0)之间，∴此抛物线与x 轴的另一个交点在(0，0)和(1，0)之间∵在对称轴的右侧，函数y 随x 增大而减小∴当x=1时，y＜0，∴将x=1代入解析式中，得：y＝a＋b＋c＜0故③正确；④若点(x1，y1)，(x2，y2)在对称轴右侧时，函数y随x增大而减小即若x1＜x2，则y1＞y2故④错误；故选C.【点睛】此题考查的是二次函数图像及性质，掌握二次函数图像及性质和各系数之间的关系是解决此题的关键.9、C【解析】根据二次根式的加减法对A、B进行判断；根据二次根式的除法法则对C进行判断；根据二次根式的乘法法则对D进行判断．【详解】A、原式A选项错误；B B选项错误；C、原式＝2，所以C选项正确；D、原式＝6，所以D选项错误．故选C．【点睛】本题考查了二次根式的混合运算：先把各二次根式化简为最简二次根式，然后进行二次根式的乘除运算，再合并即可．在二次根式的混合运算中，如能结合题目特点，灵活运用二次根式的性质，选择恰当的解题途径，往往能事半功倍．10、D【分析】按照整式乘法、合并同类项、整式除法、幂的乘方依次化简即可得到答案.【详解】A. a2·a3=a5，故该项错误；B. 3a2-a2=2a2，故该项错误；C. a8÷a2=a6，故该项错误；D. (a2)3=a6正确，故选：D.【点睛】此题考查整式的化简计算，熟记整式乘法、合并同类项、整式除法、幂的乘方的计算方法即可正确解答.11、B【分析】根据一元二次方程的根与系数的关系，x ₁+x ₂=32,把x ₁=1代入即可求出. 【详解】解：方程2230x x k --=有一个根是11x =,另-一个根为2x ，∴由根与系数关系122312x x x +=+=，即212x = 即方程另一根2x 是12故选:B ．【点睛】 本题考查了一元二次方程根与系数的关系的应用，还可根据一元二次方程根的定义先求出k 的值，再解方程求另一根. 12、C【解析】先根据点（-2，3），在反比例函数y=的图象上求出k 的值，再根据k=xy 的特点对各选项进行逐一判断．【详解】反比例函数y=的图象经过点（﹣2，3）， k=23=-6， A.(-6)(-1)=6-6，此点不在反比例函数图象上； B.16=6-6，此点不在反比例函数图象上； C.3(-2) =-6，此点在反比例函数图象上； D. 3 2 =6-6，此点不在反比例函数图象上。
2023-2024学年九年级上学期期末调研测试英语试题(原卷版)
2023-2024学年度上学期九年级期末调研测试英语试卷第Ⅰ卷一、单项选择（本题共10分，每小题1分）选择最佳答案。
1. —Boys and girls, let’s make ________ decision to have all around development from now on.—Only then will we have a better future.A. aB. anC. /2. —Our parents will take us to Disney as a special ________ next summer vacation.—Sounds like fun!A. treatB. shameC. energy3. — What do you think of your English teacher?— He is always ________ us. What a good teacher!A. absent fromB. tired ofC. patient with4. Learning to work with your classmates can help you find pleasure in what you do, even when the job ________ is hard.A. ourselvesB. itselfC. themselves5. Though they didn’t carry out their plan, they succeeded in ________ their minds.A. regrettingB. improvingC. stealing6. The population problem is very serious in this area. We must come up with good ways to ________ it.A. argue withB. deal withC. agree with7. —________ almost three years since we met for the first time.—Yeah, how time flies! We need to value the time we spent with each other.A. It wasB. It’s beenC. It will be8. —Who is the woman with Ann?—I’m not sure. It ________ be her mother.A. mayB. mustC. can’t9. Kids can own their favorite hobbies at holidays ________ they are given too much homework.A. ifB. unlessC. until10. —Excuse me, Mr Zhang. Could you please tell me ________ ?—Next Wednesday. Work hard and get ready for it.A. where I can pass the examB. if we will have an examC. when we will have the exam二、完形填空（本题共10分，每小题1分）I made a promise to myself a couple of months ago. I had put some money in my wallet with the purpose of ____11____ to the first person I met who needed it. Time passed, and as my daily life got busy, I was unable to keep my word. ____12____ I opened my wallet and saw the money, I thought of that, and I would feel a little disappointed for doing nothing. The voice inside told me that I should do something soon.Today, when I was walking to work on a busy street, I passed a ____13____ old lady with her hand out on the corner. Seeing her aged face and eyes that failed to see, I stopped ____14____. A sense of sympathy (同情) washed over me, and I remembered the money that had been lying in my wallet all these five ____15____.I took out the money from the wallet and bent down (弯腰) to her level. ____16____, I took her hand, placed the notes into it, and closed her fingers over the notes ____17____ she could feel the money and understand me.After I got up, I slowly moved away. I felt like I had achieved something. I had kept my word to myself. The lady nodded her head a little bit. I felt ____18____ and moved on.After that, I thought about why such a simple act had taken so long. This small act was a huge step in facing and walking ____19____ my own fears around giving. What a gift it is to have these small but meaningful____20____!根据短文内容选择最佳答案。
2023-2024学年北京市九年级数学第一学期期末达标测试试题(含解析)
2023-2024学年北京市九年级数学第一学期期末达标测试试题注意事项：1．答卷前，考生务必将自己的姓名、准考证号、考场号和座位号填写在试题卷和答题卡上。
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一、选择题（每题4分，共48分）1．如图，已知抛物线和直线.我们约定：当x 任取一值时，x 对应的函数值分别为y 1、y 2，若y 1≠y 2，取y 1、y 2中的较小值记为M ；若y 1=y 2，记M= y 1=y 2.下列判断： ①当x ＞2时，M=y 2；②当x ＜0时，x 值越大，M 值越大；③使得M 大于4的x 值不存在；④若M=2，则x=" 1" .其中正确的有A ．1个B ．2个C ．3个D ．4个2．教育局组织学生篮球赛，有x 支球队参加，每两队赛一场时，共需安排45场比赛，则符合题意的方程为（ ）A．B ．C ．D ．3．下列说法正确的是（ ）A ．随机抛掷一枚均匀的硬币，落地后反面一定朝上。
B ．从1，2，3，4，5中随机取一个数，取得奇数的可能性较大。
C ．某彩票中奖率为，说明买100张彩票，有36张中奖。
D ．打开电视，中央一套正在播放新闻联播。
4．如图是我们学过的反比例函数图象，它的表达式可能是（ ）21y x 4x =-+2y 2x =()11452x x -=()11452x x +=()145x x -=()145x x +=36%A ．B ．C ．D ．5．下列图案中，是中心对称图形的是（ ）A ．B ．C ．D ．6．⊙O 的半径为5cm ，弦AB//CD ，且AB=8cm,CD=6cm,则AB 与CD 之间的距离为（）A ．1 cmB ．7cmC ．3 cm 或4 cmD ．1cm 或7cm 7．已知关于的一元二次方程有两个相等的实数根，则锐角等于（ ）A ．B ．C ．D ．8．小李与小陈做猜拳游戏，规定每人每次至少要出一个手指，两人出拳的手指数之和为偶数时小李获胜，那么，小李获胜的概率为（ ）A．B ．C ．D ．9．下列关系式中，y 是x 的反比例函数的是（ ）A ．y ＝4xB ．＝3C ．y ＝﹣D ．y ＝x 2﹣110．如图，⊙O 的直径长10，弦AB=8，M 是弦AB 上的动点，则OM 的长的取值范围是（ ）A ．3≤OM≤5B ．4≤OM≤5C ．3＜OM ＜5D ．4＜OM ＜511．如图所示的工件的主视图是（ ）22y x =4y x =3y x =-3y x=-x 2cos 0x α+=α15 30 45 601325122542512y x 1xA ．B ．C ．D ．12．若△ABC ～△A ′B 'C ′，相似比为1：2，则△ABC 与△A 'B ′C '的周长的比为（ ）A ．2：1B ．1：2C ．4：1D ．1：4二、填空题（每题4分，共24分）13．若弧长为4π的扇形的圆心角为直角，则该扇形的半径为 ．14．因式分解：_______；15．如图，在平面直角坐标系中，已知经过点，且点O 为坐标原点，点C 在y 轴上，点E 在x 轴上，A (-3，2)，则__________．16．矩形ABCD 中，AB=6，BC=8.点P 在矩形ABCD 的内部，点E 在边BC 上，满足△PBE ∽△DBC ，若△APD 是等腰三角形，则PE 的长为数___________.17．已知关于的方程的一个根为-2，则方程另一个根为__________．18．在中，，，在外有一点，且，则的度数是__________．三、解答题（共78分）19．（8分）如图，有一个斜坡，坡顶离地面的高度为20米，坡面的坡度为，求坡面的长度.20．（8分）如果三角形有一边上的中线恰好等于这边的长，那么称这个三角形为“匀称三角形”，这条中线为“匀称中线”．()()2a b b a ---=A E B O C 、、、tan OBC ∠=x 230x mx m ++=ABC ∆AC BC =90C ∠=︒ABC ∆M MA MB ⊥AMC ∠AB B BC AB 25AB（1）如图①，在Rt △ABC 中，∠C ＝90°，AC ＞BC ，若Rt △ABC 是“匀称三角形”．①请判断“匀称中线”是哪条边上的中线，②求BC ：AC ：AB 的值．（2）如图②，△ABC 是⊙O 的内接三角形，AB ＞AC ，∠BAC ＝45°，S △ABC ＝，将△ABC 绕点A 逆时针旋转45°得到△ADE ，点B 的对应点为D ，AD 与⊙O 交于点M ，若△ACD 是“匀称三角形”，求CD 的长，并判断CM 是否为△ACD的“匀称中线”．21．（8分）某班为推荐选手参加学校举办的“祖国在我心中”演讲比赛活动，先在班级中进行预赛，班主任根据学生的成绩从高到低划分为A ，B ，C ，D 四个等级，并绘制了不完整的两种统计图表．请根据图中提供的信息，回答下列问题：（1）a 的值为 ；（2）求C 等级对应扇形的圆心角的度数；（3）获得A 等级的4名学生中恰好有1男3女，该班将从中随机选取2人，参加学校举办的演讲比赛，请利用列表法或画树状图法，求恰好选中一男一女参加比赛的概率．22．（10分）如图，在中，，，，将线段绕点按逆时针方向旋转到线段.由沿方向平移得到，且直线过点.ABC 90C ∠=︒10AB =8AC =AB A 90︒AD EFG ABC CB EF D（1）求的大小；（2）求的长.23．（10分）如图，把Rt △ABC 绕点A ．逆时针旋转40°，得到在Rt △ABʹCʹ，点Cʹ恰好落在边AB 上，连接BBʹ，求∠BBʹCʹ的度数．24．（10分）只有1和它本身两个因数且大于1的正整数叫做素数．我国数学家陈景润在哥德巴赫猜想的研究中取得了世界领先的成果，哥德巴赫猜想是：每个大于2的偶数都可以表示为两个素数的和，如16=3+ 1．（1）若从7， 11， 19， 23中随机抽取1个素数，则抽到的素数是7的概率是_______；（2）若从7， 11， 19， 23中随机抽取1个素数，再从余下的3个数字中随机抽取1个素数，用面树状图或列表的方法求抽到的两个素数之和大于等于30的概率，25．（12分）（1）计算: （2）化简：26．已知抛物线的顶点坐标为（1，2），且经过点（3，10）求这条抛物线的解析式．参考答案一、选择题（每题4分，共48分）1、B【解析】试题分析：∵当y 1=y 2时，即时，解得：x=0或x=2，1∠AE 201224((18--+-⨯--2291(1)693x x x x -⋅+-++2x 4x 2x -+=∴由函数图象可以得出当x ＞2时， y 2＞y 1；当0＜x ＜2时，y 1＞y 2；当x ＜0时， y 2＞y 1．∴①错误．∵当x ＜0时， -直线的值都随x 的增大而增大，∴当x ＜0时，x 值越大，M 值越大．∴②正确．∵抛物线的最大值为4，∴M 大于4的x 值不存在．∴③正确；∵当0＜x ＜2时，y 1＞y 2，∴当M=2时，2x=2，x=1；∵当x ＞2时，y 2＞y 1，∴当M=2时，，解得．∴使得M=2的x 值是1或．∴④错误．综上所述，正确的有②③2个．故选B ．2、A 【分析】先列出x 支篮球队，每两队之间都比赛一场，共可以比赛x （x-1）场，再根据题意列出方程为．【详解】解：∵有x 支球队参加篮球比赛，每两队之间都比赛一场，∴共比赛场数为，故选：A ．本题是由实际问题抽象出一元二次方程，主要考查了从实际问题中抽象出相等关系．3、B【解析】A 、掷一枚硬币的试验中，着地时反面向上的概率为，则正面向上的概率也为，不一定就反面朝上，故此选项错误；B 、从1，2，3，4，5中随机取一个数，因为奇数多，所以取得奇数的可能性较大，故此选项正确；C 、某彩票中奖率为36%，说明买100张彩票，有36张中奖，不一定，概率是针对数据非常多时，趋近的一个数并不能说买100张该种彩票就一定能中36张奖，故此选项错误；D 、中央一套电视节目有很多，打开电视有可能正在播放中央新闻也有可能播放其它节目，故本选项错误.故选B ．4、B【分析】根据反比例函数图象可知，经过第一三象限，，从而得出答案．【详解】解：A 、为二次函数表达式，故A 选项错误；B 、为反比例函数表达式，且，经过第一三象限，符合图象，故B 选项正确；21y x 4x =-+2y 2x =()221y x 4x x 24=-+=--+2x 4x 2-+=12x 2x 2=+=-2+()11452x x -=()11452x x -=12120k >22y x =4y x=0k >C 、为反比例函数表达式，且，经过第二四象限，不符合图象，故C 选项错误；D 、为一次函数表达式，故D 选项错误．故答案为B ．本题考查了反比例函数的图象的识别，掌握反比例函数的图象与性质是解题的关键．5、C【解析】根据中心对称图形的概念即可得出答案.【详解】A 选项中，不是中心对称图形，故该选项错误；B 选项中，是轴对称图形，不是中心对称图形，故该选项错误；C 选项中，是中心对称图形，故该选项正确；D 选项中，不是中心对称图形，故该选项错误.故选C本题主要考查中心对称图形，掌握中心对称图形的概念是解题的关键.6、D【分析】分AB 、CD 在圆心的同侧和异侧两种情况求得AB 与CD 的距离．构造直角三角形利用勾股定理求出即可.【详解】当弦AB 和CD 在圆心同侧时，如图①，过点O 作OF ⊥CD ，垂足为F ，交AB 于点E ，连接OA ，OC ，∵AB ∥CD ，∴OE ⊥AB ，∵AB=8cm ，CD=6cm ，∴AE=4cm ，CF=3cm ，∵OA=OC=5cm ，∴EO=3cm ，OF=4cm ，∴EF=OF-OE=1cm ；当弦AB 和CD 在圆心异侧时，如图②，过点O 作OE ⊥AB 于点E ，反向延长OE 交AD 于点F ，连接OA ，OC ，∵AB ∥CD，3y x=-0k <3y x =-∴OF ⊥CD ，∵AB=8cm ，CD=6cm ，∴AE=4cm ，CF=3cm ，∵OA=OC=5cm ，∴EO=3cm ，OF=4cm ，∴EF=OF+OE=7cm ．故选D ．本题考查了垂径定理、勾股定理；熟练掌握垂径定理和勾股定理，根据题意画出图形是解题的关键，要注意有两种情况．7、D【分析】根据一元二次方程根的判别式等于零，求出的值，进而即可得到答案．【详解】∵关于的一元二次方程有两个相等的实数根，∴∆=，解得：，∴=．故选D ．本题主要考查一元二次方程根的判别式以及特殊角三角函数，掌握一元二次方程根的判别式与根的关系，是解题的关键．8、A【分析】画出树状图，共有25个等可能的结果，两人出拳的手指数之和为偶数的结果有13个，即可得出答案．【详解】解：画树状图如图：共有25个等可能的结果，两人出拳的手指数之和为偶数的结果有13个，∴小李获胜的概率为；故选A ．cos αx 2cos 0x α-+=2(41cos 0α-⨯⨯=1cos 2α=α60 1325本题考查了列表法与树状图法以及概率公式；根据题意画出树状图是解题的关键．9、C【分析】根据反比例函数的定义逐一判断即可．【详解】A 、y ＝4x 是正比例函数；B 、＝3，可以化为y ＝3x ，是正比例函数；C 、y ＝﹣是反比例函数；D 、y ＝x 2﹣1是二次函数；故选：C ．本题考查反比例函数的定义，掌握反比例函数的定义是解题的关键．10、A【详解】解：的直径为10，半径为5，当时，最小，根据勾股定理可得，与重合时，最大，此时，所以线段的的长的取值范围为，故选A ．本题考查垂径定理，掌握定理内容正确计算是本题的解题关键．11、B【解析】从物体正面看，看到的是一个横放的矩形，且一条斜线将其分成一个直角梯形和一个直角三角形．故选B ．12、B【分析】根据相似三角形的周长比等于相似比即可得出结论．【详解】解：∵∽，相似比为1：1，∴与的周长的比为1：1．故选：B ．此题考查的是相似三角形的性质,掌握相似三角形的周长比等于相似比是解决此题的关键．二、填空题（每题4分，共24分）13、1．【分析】根据扇形的弧长公式计算即可，【详解】∵扇形的圆心角为90°，弧长为4π，∴，即4π=，则扇形的半径r=1．y x1x O OM AB ⊥OM 3OM =OM OA OM 5OM =OM 35OM ≤≤ABC A B C '''V ABC A B C '''V r l 180n π=90•180r π故答案为1考点：弧长的计算．14、（a-b ）（a-b+1）【解析】原式变形后，提取公因式即可得到结果．【详解】解：原式=(a -b )2+(a -b )=(a -b )(a -b +1)，故答案为：(a -b )(a -b +1)此题考查了因式分解-提公因式法，熟练掌握提取公因式的方法是解本题的关键．15、【解析】分别过A 点作x 轴和y 轴的垂线，连接EC ，由∠COE =90°，根据圆周角定理可得：EC 是⊙A 的直径、，由A 点坐标及垂径定理可求出OE 和OC ，解直角三角形即可求得．【详解】解：如图，过A 作AM ⊥x 轴于M ，AN ⊥y 轴于N ，连接EC ，∵∠COE =90°，∴EC 是⊙A 的直径，∵A (−3，2)，∴OM =3，ON =2，∵AM ⊥x 轴，AN ⊥y 轴，∴M 为OE 中点，N 为OC 中点，∴OE =2OM =6，OC =2ON =4，∴=．本题主要考查了同弧所对的圆周角相等、垂径定理和锐角三角函数定义，熟练掌握定理是解本题的关键．16、3或1.2【分析】由△PBE ∽△DBC ，可得∠PBE=∠DBC ，继而可确定点P 在BD 上，然后再根据△APD 是等腰三角形，分DP=DA 、AP=DP 两种情况进行讨论即可得.【详解】∵四边形ABCD 是矩形，∴∠BAD=∠C=90°，CD=AB=6，BC=8，∴BD=10，23∠=∠OBC CEO tan OBC ∠tan OBC ∠42tan 63∠===OC CEO OE∵△PBE ∽△DBC ，∴∠PBE=∠DBC ，∴点P 在BD 上，如图1，当DP=DA=8时，BP=2，∵△PBE ∽△DBC ，∴PE ：CD=PB ：DB=2：10，∴PE ：6=2：10，∴PE=1.2；如图2，当AP=DP 时，此时P 为BD 中点，∵△PBE ∽△DBC ，∴PE ：CD=PB ：DB=1：2，∴PE ：6=1：2，∴PE=3；综上，PE 的长为1.2或3，故答案为1.2或3.本题考查了相似三角形的性质，等腰三角形的性质，矩形的性质等，确定出点P 在线段BD 上是解题的关键.17、1【分析】将方程的根-2代入原方程求出m 的值，再解方程即可求解．【详解】解：把x=-2代入原方程得出，4-2m+3m=0，解得m=-4；故原方程为：，解方程得：．故答案为：1．本题考查的知识点是解一元二次方程，根据方程的一个解求出方程中参数的值是解此题的关键．24120x x --=122,6x x =-=18、、【分析】由，可知A 、C 、B 、M 四点共圆，AB 为圆的直径，则是弦AC 所对的圆周角，此时需要对M 点的位置进行分类讨论，点M 分别在直线AC 的两侧时，根据同弧所对的圆周角相等和圆内接四边形对角互补可得两种结果．【详解】解：∵在中，，，∴∠BAC =∠ACB =45°，∵点在外，且，即∠AMB =90°∵∴A 、C 、B 、M 四点共圆，①如图，当点M 在直线AC 的左侧时，,∴；②如图，当点M 在直线AC 的右侧时，∵，∴，故答案为：135°或45°．本题考查了圆内接四边形对角互补和同弧所对的角相等，但解题的关键是要先根据题意判断出A 、C 、B 、M 四点共圆．三、解答题（共78分）19、米【分析】根据坡度的定义可得，求出AB ，再根据勾股定理求135︒45︒90C ∠=︒MA MB ⊥AMC ∠ABC ∆AC BC =90C ∠=︒M ABC ∆MA MB ⊥180∠+∠=︒AMB C 180∠+∠=︒AMC ABC 180********∠=︒-∠=︒-︒=︒AMC ABC AC AC =45∠=∠=︒AMC ABC 25BC AC =AB =【详解】∵坡顶离地面的高度为20米，坡面的坡度为即, ∴米由勾股定理得答：坡面的长度为米.考核知识点：解直角三角形应用.把问题转化为解直角三角形是关键.20、（1）① “匀称中线”是BE ，它是AC 边上的中线，②BC ：AC ：AB；（2）CDa ，CM 不是△ACD 的“匀称中线”．理由见解析.【分析】（1）①先作出Rt △ABC 的三条中线AD 、BE 、CF ，然后利用匀称中线的定义分别验证即可得出答案；②设AC ＝2a ，利用勾股定理分别把BC,AB 的长度求出来即可得出答案.（2）由②知：AC ：AD ：CD ，设AC ，则AD ＝2a ，CD ，过点C 作CH ⊥AB ，垂足为H，利用的面积建立一个关于a 的方程，解方程即可求出CD 的长度；假设CM 是△ACD 的“匀称中线”，看能否与已知的定理和推论相矛盾，如果能，则说明假设不成立，如果不能推出矛盾，说明假设成立.【详解】（1）①如图①，作Rt△ABC 的三条中线AD、BE 、CF ，∵∠ACB ＝90°，∴CF ＝，即CF 不是“匀称中线”．又在Rt △ACD 中，AD ＞AC ＞BC ，即AD 不是“匀称中线”．∴“匀称中线”是BE ，它是AC 边上的中线，②设AC ＝2a ，则CE ＝a ，BE ＝2a ，在Rt △BCE 中∠BCE ＝90°，∴BC ，在Rt △ABC 中，AB ，∴BC ：AC ：AB （2）由旋转可知，∠DAE ＝∠BAC ＝45°．AD ＝AB ＞AC ，B BC AB 2525BC AC =2025AC =50AC =AB ==AB :2:7:2ABC 12AB AB ≠==:2:2a =∴∠DAC ＝∠DAE +∠BAC ＝90°，AD ＞AC ，∵Rt △ACD 是“匀称三角形”．由②知：AC ：AD ：CD设AC，则AD ＝2a ，CD ，如图②，过点C 作CH⊥AB ，垂足为H ，则∠AHC ＝90°，∵∠BAC ＝45°，∴ ∵解得a ＝2，a ＝﹣2（舍去），∴判断：CM 不是△ACD 的“匀称中线”．理由：假设CM 是△ACD 的“匀称中线”．则CM ＝AD ＝2AM ＝4，AM ＝2，∴又在Rt △CBH 中，∠CHB ＝90°，CH ，BH ＝4，∴即这与∠AMC ＝∠B相矛盾，∴假设不成立，2CH AH ===11222ABC S AB CH a ==⨯= CD ==tan AC AMC AM ∠===tan tan CH B AMC BH ===≠∠B AMC∠≠∠∴CM 不是△ACD 的“匀称中线”．本题主要为材料理解题，掌握匀称三角形和匀称中线的意义是解题的关键.21、（1）8 ；（2）；（3）【分析】（1）根据D 等级的人数除以其百分比得到班级总人数，再乘以B 等级的百分比即可得a 的值；（2）用C 等级的人数除以班级总人数即可得到其百分比，用360°乘以其百分比得到其扇形圆心角度数；（3）画树状图可知，共有12种均等可能结果，恰好选中一男一女的有6种．然后根据概率公式求解即可【详解】解：（1）班级总人数为 人，B 等级的人数为 人，故a 的值为8；（2）∴C 等级对应扇形的圆心角的度数为．（3）画树状图如图：(画图正确）由树状图可知，共有12种均等可能结果，恰好选中一男一女的有6种．∴P （一男一女） 答：恰好选中一男一女参加比赛的概率为．本题考查了列表法与树状图法：利用列表法或树状图法展示所有等可能的结果n ，再从中选出符合事件A 的结果数目m ，然后利用概率公式计算事件A的概率为．也考查了统计图．22、（1）；（2）【分析】（1）根据旋转的性质可求得，AD=AB=10，∠ABD=45°，再由平移的性质即可得出结论；（2）根据平移的性质及同角的余角相等证得∠DAE=∠CAB ，进而证得△ADE ∽△ACB ，利用相似的性质求出AE 即可．【详解】解：（1）∵线段AD 是由线段AB 绕点A 按逆时针方向旋转90°得到，∴∠DAB=90°，AD=AB ，∴∠ABD=∠ADB=45°，∵△EFG 是由△ABC 沿CB 方向平移得到，∴AB ∥EF ，∴∠1=∠ABD=45°；（2）由平移的性质得，AE ∥CG ，∴∠EAC=180°－∠C=90°，144︒121230%40÷=4020%8⨯=16360144 40⨯︒=︒ 144︒61122==12m n45︒12.5AE =∴∠EAB+∠BAC=90°，由（1）知∠DAB=90°，∴∠DAE+∠EAB=90°，∴∠DAE=∠CAB ，又∵∠ADE=∠ADB+∠1=90°，∠ACB=90°，∴∠ADE=∠ACB ，∴△ADE ∽△ACB ，∴，∵AC=8，AB=AD=10，∴AE=12.5.本题为平移的性质，旋转的性质，相似三角形的判定与性质的综合考查，熟练掌握基础的性质与判定是解题的关键.23、20°【分析】利用旋转的性质及等腰三角形的性质可得∠ABBʹ，再根据直角三角形两锐角互余可得解.【详解】解：由旋转可知：∠BABʹ=40°，AB=ABʹ．∴∠ABBʹ=∠ABʹB ．∴∠ABBʹ==70°．∴∠BBʹCʹ=90°－70°=20°．本题考查了三角形的旋转，灵活利用旋转对应边相等，对应角相等且等于旋转角的性质是解题的关键.24、（1）；（2）【分析】(1)直接根据概率公式计算可得；(2)画树状图得出所有等可能结果，再从中找到符合条件的结果数，利用概率公式计算可得．【详解】解： (1) 因为7， 11， 19， 23共有4个数，其中素数7只有1个，所以从7， 11， 19， 23中随机抽取1个素数，则抽到的素数是7的概率是，故答案为. (2)由题意画树状图如下：AD AE AC AB=00180402-14231414由树状图可知，共有12种等可能的结果，其中抽到的两个素数之和大于等于30的结果有8种，故所求概率本题考查了列表法与树状图法：利用列表法或树状图法展示所有等可能的结果n ，再从中选出符合事件A 或B 的结果数目m ，然后利用概率公式计算事件A 或事件B 的概率．25、（1）1；（2）【分析】（1）根据实数的混合运算法则计算即可；（2）根据分式的运算法则计算即可.【详解】解：（1）原式=2+ =1； （2）.本题考查了实数的混合运算，以及分式的混合运算，熟练掌握运算法则是解答本题的关键.26、y ＝1（x ﹣1）1+1．【分析】根据题意设抛物线解析式为y ＝a （x ﹣1）1+1，代入（3，10）求解即可．【详解】解：根据题意设抛物线解析式为y ＝a （x ﹣1）1+1，把（3，10）代入得a （3﹣1）1+1＝10，解得a ＝1，所以抛物线解析式为y ＝1（x ﹣1）1+1．本题考查了抛物线的问题，掌握抛物线的性质以及解析法、待定系数法是解题的关键．82123P ==43x x +-201222()(18--++⨯--11--1442291(1)693x x x x -⋅+-++()()()2334•33x x x x x +-+=+-43x x +=-。
人教版九年级数学上册期末测试题(附参考答案)
人教版九年级数学上册期末测试题（附参考答案）满分120分考试时间120分钟一、选择题：本大题共10个小题，每小题3分，共30分。
每小题只有一个选项符合题目要求。
1.方程x2－2x－24＝0的根是( )A．x1＝6，x2＝4 B．x1＝6，x2＝－4C．x1＝－6，x2＝4 D．x1＝－6，x2＝－42.一个不透明的袋子中装有2个白球和3个黑球，这些球除了颜色外无其他差别，从中摸出3个球，下列事件属于必然事件的是( )A．至少有1个球是白色球B．至少有1个球是黑色球C．至少有2个球是白色球D．至少有2个球是黑色球3.若关于x的一元二次方程x2－8x＋m＝0的两根为x1，x2，且x1＝3x2，则m的值为( )A．4 B．8C．12 D．16x2－6x＋21，有以下结论：①当x＞5时，y随x的增大而4.对于二次函数y＝12增大；②当x＝6时，y有最小值3；③图象与x轴有两个交点；④图象是由抛物x2向左平移6个单位长度，再向上平移3个单位长度得到的．其中正确结线y＝12论的个数为( )A．1 B．2C．3 D．4⏜的长是5.如图，四边形ABCD内接于⊙O，⊙O的半径为3.若∠D＝120°，则AC( )πA．πB．23C ．2πD ．4π6.如图，在△AOB 中，OA ＝4，OB ＝6，AB ＝2√7，将△AOB 绕原点O 旋转90°，则旋转后点A 的对应点A ′的坐标是( )A ．(4，2)或(－4，2)B ．(2√3，－4)或(－2√3，4)C ．(－2√3，2)或(2√3，－2)D ．(2，－2√3)或(－2，2√3)7.如图，AB 是O 的直径，ACD CAB ∠=∠ 2AD = 4AC =，则O 的半径为( )A ．B ．C ．D8．如图，四边形ABCD 中，60A ∠=︒ //AB CD DE AD ⊥交AB 于点E ，以点E 为圆心 、DE 为半径且6DE =的圆交CD 于点F ，则阴影部分的面积为( )A ．6π-B ．12π-C ．6πD ．12π 9．我国古代著作《四元玉鉴》记载“买椽多少”问题：“六贯二百一十钱，遣人去买几株椽．每株脚钱三文足，无钱准与一株椽．”其大意为：现请人代买一批椽，这批椽的价钱为6210文．如果每株椽的运费是3文，那么少拿一株椽后，剩下的椽的运费恰好等于一株椽的价钱，试问6210文能买多少株椽？设这批椽的数量为x 株，则符合题意的方程是( ) A ．3(1)6210x x -= B ．3(1)6210x -=C ．(31)6210x x -=D ．36210x =10.如图，公园内有一个半径为18米的圆形草坪，从A 地走到B 地有观赏路(劣弧AB )和便民路(线段AB )．已知A ，B 是圆上的两点，O 为圆心，∠AOB ＝120°，小强从点A 走到点B ，走便民路比走观赏路少走( )A ．(6π－6√3)米B ．(6π－9√3)米C ．(12π－9√3)米D ．(12π－18√3)米二、填空题：本题共6个小题，每小题3分，共18分。
四川省成都市实验外国语学校2023-2024学年英语九上期末达标测试试题含解析
四川省成都市实验外国语学校2023-2024学年英语九上期末达标测试试题考生须知：1．全卷分选择题和非选择题两部分，全部在答题纸上作答。
选择题必须用2B铅笔填涂；非选择题的答案必须用黑色字迹的钢笔或答字笔写在“答题纸”相应位置上。
2．请用黑色字迹的钢笔或答字笔在“答题纸”上先填写姓名和准考证号。
3．保持卡面清洁，不要折叠，不要弄破、弄皱，在草稿纸、试题卷上答题无效。
Ⅰ. 单项选择1、-Where's mum，Mary？-She left a______saying that she went shopping．A．information B．suggestion C．sentence D．message2、--- Excuse me, could you tell me ?--- It’s about 10 minutes by taxi.A．how far it is to go to Pukou Railway StationB．how far is it to go to Pukou Railway StationC．how long it takes to go to Pukou Railway StationD．how long does it take to go to Pukou Railway Station3、—I love this painting. It ________the painter's love for nature.—I agree.A．plans B．expects C．shows D．depends4、—_________. Hope is all around you.—Thank you, Mr. Lin.A．Do n’t be late again B．Never give upC．Don’t hurry up D．Never get satisfied5、—Thank you very much for giving me some advice on how to deal with stress.—________．A．That's true B．Don't mention itC．OK. I'll try D．I don't think so6、—I hope you don’t mind my opening the window.—. It’s much too hot here.A．All right. B．Certainly. C．Of course not. D．Never mind.7、He ran quickly all the way to school, ______ he was still late.A．but B．and C．or D．so8、—Did you have a good time at the party?—Yes. We sang ______danced until late at night.ZXXK]A．but B．if C．and D．so9、“_______a good breakfast, my son. It’s good for your health. ”Mom often says to Tommy.A．Eat B．Eating C．To eat D．Eats10、—I miss the football match on TV last night.—________. You can watch it on the Internet.A．That’s right B．It’s not a big deal C．Bad luck D．Don’t mention itⅡ. 完形填空11、When you write a letter or make a telephone call, your words 1 a message. People communicate (交流) with words. Do you think you can communicate 2 words? A smile 3 your face shows you are happy and friendly. Tears in your eyes tell 4 that you are sad. When you 5 your hand in class, the teacher knows you want to say something 6 ask questions. You shake your head, and people know you are saying no. You nod and people know you are saying 7 . Other things can also give some information. For example, a sign at the bus stop helps you to know which bus 8 . A sign on the wall of your school helps you to find the library. Signs PUSH or PULL on doors tell you 9 to go in or out. 10 you ever noticed that there are a lot of signs around you and that you receive messages 11 them all the time? People can communicate 12 many other ways. 13 artist can use his drawings to tell about beautiful mountains, about the blue sea and many other things. Books 14to tell you about all wonderful things in the world and also about people and their ideas. Books, magazines, TV and radio and films all help us to communicate with other people. They all help us to know 15 is going on in the world.1．A．take B．bring C．carry D．gives2．A．by B．with C．use D．without3．A．in B．on C．at D．over4．A．others B．the others C．other D．the other5．A．put on B．put out C．put up D．put down6．A．when B．or C．but D．if7．A．no B．hello C．yes D．nothing8．A．to get B．to choose C．to have D．to take9．A．which B．when C．how D．what10．A．Do B．Did C．Had D．Have11．A．from B．of C．about D．for12．A．with B．by C．without D．in13．A．/ B．An C．A D．Some14．A．write B．wrote C．is written D．are written15．A．what B．which C．that D．whoⅢ. 语法填空12、Mary is 1．eight-year-old girl. Every day she washes clothes, looks after2．(she) younger sister and works 3．(hardly) on the farm. Mary wants to go to school, but her mother needs her help at home. So Mary stays at home instead of 4．(go) to school.Do you want to help Mary? Well, join Save the Children, please! Just 6 yuan a day, you can 5．(helpful) a child like Mary. With your help, children like Mary will be able 6．(have) enough food and have chances to go to school.Save The Children is an organization to help poor children like Mary. It has been in service since 1932. The money from kind people will 7．(use) to build schools, hospitals and other necessary 8．(build)9．you are a volunteer, there are many wonderful things waiting for you — letters from the children, their photos and subject reports. Now, if you are interested10．the application form, and then you can donate some money. In this way, you can help a child like Mary!Ⅳ. 阅读理解A13、On the first day of school, our professor introduced himself and let us get t o know someone we didn’t know. I stood up to look around when a gentle hand touched my shoulder. “Hi, girl! My name is Rose, I’m 87 years old.”“Why are you in college at such a young age?” I asked jokingly.“I always dreamed of having a college education and now I’m getting one!” she replied.Rose became a college symbol this year and she easily made friends with other students.At the end of the term we invited her to speak at our football party. I’ll never forget what she taught us.“We do not stop playi ng because we are old; we grow old because we stop playing. There are only two secrets of staying young, being happy and achieving success. Y ou have to laugh and find humor every day. Y ou've got to have a dream. When you lose your dreams, you die. We have so many people walking around who are dead and don't even know it! “There is a big difference between growing older and growing up. If you are nineteen years old and lie in bed for one full year and don’t do anything, you will turn 20 years older. If I am 87 years old, and stay in bed for a year, and never do anything, will turn 88. Anybody can grow older. But every minute counts for young men,” she added.She ended her speech by singing The Song Rose. She challenged each of us to study the lyrics and live them out in our daily lives.At the end of the year, Rose finished the college education. One week after graduation, Rose died peacefully in her sleep. Over two thousand college students attended her funeral in tribute to the wonderful woman who taught by example that it's never too late to be all you can possibly be.Remember GROWING OLDER IS MANDATORY(必选的), GROWING UP IS OPTIONAL（可选择的）.1．Rose went to college because she ___________.A．wanted to live longerB．loved to stay with the youngC．wanted to realize her dreamD．planned to enjoy her life there2．Rose was ____________ during her stay in college.A．outgoing and popular B．brave and hard-workingC．honest and athletic D．calm and creative3．Which of the following is included in Rose’s speech?A．Peop le won’t grow old if they stop playing.B．The more you laugh , the younger you will be.C．People easily become old if they do more things.D．Time is especially important to young people.4．Which of the following can best describe the story?A．Live with your dream.B．Find secrets of staying young.C．Learn wherever you are.D．Be happy every day.B14、When I was in primary school, I got into a major argument(争论) with a boy named Michael in my class. I have forgotten what the argument was about, but I have never forgotten the lesson I learned that day.I was convinced that I was right and he was wrong, and Michael was just as convinced that I was wrong and he was right. The teacher decided to teach us a very important lesson. She brought us up to the front of the class, placed Michael on one side of her desk and me on the other. In the middle of her desk was a large, round object. I could clearly see that it was black. And she asked Michael what color the object was, “White,” he answered.I couldn’t believe h e said the object was white, when it was obviously black! Another argument started between Michael and me, this time about the color of the object.The teacher told me to go stand where Michael was standing and told him to come and stand where I had been. We changed places, and now she asked me what the color of the object was. I had to answer, “White.” It was an object with two differently colored sides, and from his viewpoint（视角）it was white. Only from my side it was black.My teacher taught me a very imp ortant lesson that day. You must stand in the other person’s shoes and look at the situation through their eyes in order to truly understand their perspective.1．What was the argument about between the author(作者) and Michael at first?A．The color of the object. B．The answer of a math question.C．The author was not sure. D．The time of beginning class.2．The author feel ________ when he heard Michael’s answer.A．happy B．unbelievable C．tired D．helpless3．What’s the meaning of the word underlined in Paragraph 2?A．确信B．辩解C．怀疑D．猜测4．What did the teacher put in the middle of her desk?A．A round and colorful object. B．A white and black bottle.C．An object with two mirrors D．An object with two colors.5．What’s the best title for the passage?A．An Argument B．My School LifeC．My Friend-Michael D．Different ViewpointsC15、1．People can’t go to Sweet Tomatoes _______ for a meal.A．on Wednesday B．on FridayC．on Sunday D．on Monday2．Mariah may call _______ to order the seats, because she lives in Ningyang.A．(0538) 3270-9831 B．(0538) 3682-2366C．(0538) 3866-8888 D．(0538) 3370-95313．Mr. and Mrs. White visited Sweet Tomatoes with two kids, Sara, age 7; Tom, age 4. They have to pay _______ for the meal.A．110 B．15C．150 D．304．What’s a “Coupon” used for?A．To invite a friend. B．To save money.C．To get a VIP card. D．To be a reader of China Daily.5．Where would you probably read this passage?A．In a story book. B．In a math book.C．In a newspaper. D．In a geographic magazine.D16、Who would win in a competition to memorize numbers, a chimp (黑猩猩) or a teenager? The teenager? Think again. Scientists have proved that chimps perform better than human beings when it comes to this kind of problem. We may have to rethink what we believe about human memory.Memory is our ability to learn something, save it and recall it when needed. Our memories are important to our sense of self, our personalities, and our ability to understand the world.Scientists say that there are different types of memory. There is short-term memory and long-term memory. Your short-term memory saves information for a few seconds or a few minutes. For example, the time it takes to compare the prices of a few items in a store. Long-term memory involves the information you try hard to ke ep, because it’s meaningful to you (an example is data 数据about family and friends. ) And then there is visual memory and sound memory. But these are not hard and fast: scientists argue a lot about the nature of memory.Scientists have also found that people memorize things in different ways. Some memorize better with the help of pictures. Others are helped more by sounds. One thing’s for sure. If you can combine different kinds of memory together, you will remember a lot! So why not try pictures with English words? At the same time listen to recordings of the same group of words. It may help when it comes to memorizing it.Imagination and association can be useful too. By imagination scientists mean picturing a word in your mind.Association means relating the word to something you already know.1．What can we learn from Paragraph 1?A．Human beings are less clever than chimps.B．Human memory is not as good as before.C．Chimps can memorize numbers better than teenagers.D．Chimps perform better than human beings in many aspects.2．How many kinds of memory are mentioned in the article?A．2 B．3 C．4 D．53．According to the article, which of the following is the best way to memorize words?A．By watching TV.B．By listening to music.C．By writing them out many times.D．By listening and watching pictures.4．According to the article, which of the following is TRUE?A．Memory is the most important ability for human beings.B．Long-term memory usually involves more important things.C．Scientists have made sure of the nature of memory.D．Imagination is better than association in memorizing things.5．Where do we probably read the passage?A．A textbook B．A science magazineC．An advertisement D．A news reportE17、Middle EastEgyptian birthday parti es in these countries are filled with dancing and singing. To celebrate the child’s age, family and friends gather around the chair, lifting and raising it once for each year of life——plus one more for good luck!Japan When Japanese children turn 3, 5 or 7, it is thought to be especially lucky. They are allowed to take part in the upcoming Shichi-go-san Festival, which is celebrated on November 15th every year.ChinaIn China, people believe that tigers protect children. Family members bring newborns special food and present them with gifts of clothing or toys decorated with tigers. When a Chinese girl or boy turns one year old, kinds of toys are placed on the floor around the child.PhilippineFilipino families display blinking（闪光的）colored lights to show that someone is having a birthday at his home. Thewhole family usually goes to church together to thank god.KoreaIn Korea, “Paegil”, the 100th day after a child’s birth, is a get-together day for the child’s family. On a Korean child’s first birthday, a “Tol” or “Dol” is held. Family and friends gather to enjoy food together and offer the one-year-old gifts of money.1．__________ celebrate the child’s age by lifting and raising a chair.A．Egyptians B．Japanese C．Korean2．Shichi-go-san is a special ____________.A．present B．food C．day3．In China, family members bring the children present decorated with tigers because they think _______________. A．tigers are strong and healthyB．tigers protect childrenC．the children look like the tiger4．In Korea, a “Tol” or “Dol” is the name of ___________.A．party B．game C．present5．Which of the descriptions is true for birthday celebrations?A．Shichi-go-san Festival is celebrated on Chinese children’s birthday.B．Filipino families get together at home to thank God.C．People in Korea celebrate a child’s birthday on the 100th day.F18、James is a good student and he has lots of friends，but he also has a problem. Some older boys are bullying(欺负)him at school. James is very unhappy and he doesn't know what to do about it. Here are some suggestions to him and other teenagers in this situation.Don't feel worried. It's not your fault(过错)! Being bullied can make you feel very lonely and angry，but you are not alone. Don't feel that you have to hide the problem. You should find a person you can trust，and tell them. It might be your teacher，your parents，or even your friend's parents. After you tell someone，you will get some support and feel some relief(解脱).Speaking to an adult might make you nervous，but here are other things you can do. Some people express their feelings more easily on paper. Write a letter to someone or keep a diary. Include all the details(细节)about what the bullies do, as well as when and where the bullying happens. Y ou can use it as proof to show what is going on. And it is a wonderful idea to show your letter or diary to a teacher or another responsible adult. Then the bullies will feel very afraid if their names appear in a letter!Also，don't show you are sad and don't try and fight with the bullies. You could get in trouble yourself.____them andjust walk away. The bullies will soon stop.1．What do you think the text is trying to tell us?A．What to do about being bullied.B．How to be a good student at school.C．What to write well in a diary.D．How to give suggestions to teenagers.2．Why does the text advise you not to feel worried if bullied?A．Because you are not alone.B．Because it is not your fault.C．Because someone has known about it.D．Because you' re doing something wrong.3．You'd better go and find a person you can trust and ____.A．know what happens B．learn from themC．ask for help D．make them lonely4．If you remember and follow the suggestions above, ____.A．nobody will speak to the bulliesB．everybody will feel some reliefC．someone will express their feelingsD．the bullies will soon stop5．What does the underlined word "ignore" mean in the text?A．take no notice of B．take care ofC．make full use of D．get more help fromⅤ.书面表达19、今年央视春晚，一曲《时间都去哪儿了》让许多观众深受感动。
2025届湖南长郡教育集团英语九上期末综合测试试题含解析
2025届湖南长郡教育集团英语九上期末综合测试试题考生请注意：1．答题前请将考场、试室号、座位号、考生号、姓名写在试卷密封线内，不得在试卷上作任何标记。
2．第一部分选择题每小题选出答案后，需将答案写在试卷指定的括号内，第二部分非选择题答案写在试卷题目指定的位置上。
3．考生必须保证答题卡的整洁。
考试结束后，请将本试卷和答题卡一并交回。
Ⅰ. 单项选择1、—What a useful ____________ you’ve given me! Thanks a lot.—My pleasure.A．information B．news C．suggestion D．advice2、----The window ______ just now.----Yes. It is as bright as a penny now.A．cleans B．is cleaned C．cleaned D．was cleaned3、As a student, getting up early and being afraid of missing the first school bell may be common ____ for you. But thanks to new rules, you can stay in bed longer than before.A．signs B．symbols C．experiences D．tasks4、—____ you ___ the book Harry Potter for two weeks?—No, I haven’t. I ____ it from the library the day before yesterday.A．Did; borrow; borrowed B．Have; borrowed ;keptC．Have; kept; borrowed D．Did ; keep; kept5、If you can speak English well, you will have a great _____ over others while looking for a job.A．activity B．article C．advantage D．agreement6、Please turn off the TV. Your father _______ in the bedroom.A．sleeps B．slept C．is sleeping D．was sleeping7、---Must I hand in my homework now?---No,you__.You can hand it in tomorrow.A．mustn’t B．can’t C．needn’t D．shouldn’t8、—Why do you think Sam did _______ than anyone else in the competition?—Because he sang most loudly and _______.A．worse; carefully B．better; clearlyC．worse; quietly D．best; carefully9、—Mike, can you play soccer with us on Saturday afternoon?—, but I promised to fly kites with Jack.A．Sure B．Yes, I can C．I’d love to D．No problem10、The nurse won’t leave her patients ______ she’s sure somebody else takes good care of them.A．if B．because C．since D．unlessⅡ. 完形填空11、完型填空请认真阅读下面短文，从短文后各题所给的ABCD四个选项，选出最佳选项，并在答题卡上将该项涂黑。
2025届河南省郑州市第十一中学化学九上期末学业水平测试试题含解析
2025届河南省郑州市第十一中学化学九上期末学业水平测试试题注意事项1．考生要认真填写考场号和座位序号。
2．试题所有答案必须填涂或书写在答题卡上，在试卷上作答无效。
第一部分必须用2B 铅笔作答；第二部分必须用黑色字迹的签字笔作答。
3．考试结束后，考生须将试卷和答题卡放在桌面上，待监考员收回。
一、单选题（本题包括12个小题，每小题3分，共36分．每小题只有一个选项符合题意）1．下列各图是初中化学常见的几个实验操作，其中错误．．的是（）A．B．C．D．2．丙烷（C3H8）是液化石油气的主要成分之一，燃烧前后分子种类变化的微观示意图如下。
下列说法正确的是（）A．甲中碳、氢元素质量比为3:8 B．乙和丙的元素组成相同C．44g甲完全燃烧至少需160g乙D．生成的丙与丁的分子个数比为1:13．2019年诺贝尔化学奖授予三位在锂电池领域做出贡献的化学家。
某种锂电池的总反应可以表示为：Li + MnO2 = LiMnO2，此反应中锂的化合价变化为0 → +1，下列对锰元素的化合价变化的判断中正确的是A．+2 → +3 B．+4 → +3 C．– 4 →– 2 D．0 → +24．属于化学变化的是A．纸张燃烧B．冰雪融化C．铁丝弯曲D．酒精挥发5．欲配制10.0%的NaCI溶液50g，部分操作如下图所示，正确的是A．取固体B．称固体C．量取水D．写标签6．下列化学方程式符合客观化学反应事实且书写正确的是（）2Fe+6HCl=2FeCl+3H↑A．铁粉与稀盐酸混合后有大量气泡产生：32CaCO+2HCl=CaCl+H O+CO↑B．稀盐酸洒到大理石表面上有气泡产生：3222Fe O+HCl=FeCl+H OC．用盐酸除锈：2332CuO+H SO=CuSO+H↑D．黑色的氧化铜粉末与稀硫酸混合后，溶液变成蓝色：24427．某纯净物X在空气中完全燃烧，反应的化学方程式为：X+2O2CO2+2H2O，下列关于X的说法正确的是（）A．X由碳、氢、氧三种元素组成B．X的相对分子质量为10C．X中碳、氢元素的质量比为1：4D．X属于有机化合物8．下列图像能正确反映对应变化关系的是A．高温煅烧一定质量的石灰石B．加热一定质量的氯酸钾和二氧化锰的混合物C．等质量的镁和氧气在点燃条件下充分反应D．某温度时，向一定量接近饱和的硝酸钾溶液中不断加入硝酸钾晶体9．下列图象能正确反映对应变化关系的是A．用氯酸钾制取氧气B．等质量碳酸钙与足量同浓度稀盐酸反应C．镁在空气中燃烧D．20℃时，向一定量接近饱和的硝酸钾溶液中加入硝酸钾固体10．一氧化氮（NO）是大气污染物，但少量NO在人体内有扩张血管、增强记忆的功能。
2025届福建省莆田市第二十五中学英语九上期末综合测试试题含解析
2025届福建省莆田市第二十五中学英语九上期末综合测试试题注意事项:1．答题前，考生先将自己的姓名、准考证号码填写清楚，将条形码准确粘贴在条形码区域内。
2．答题时请按要求用笔。
3．请按照题号顺序在答题卡各题目的答题区域内作答，超出答题区域书写的答案无效；在草稿纸、试卷上答题无效。
4．作图可先使用铅笔画出，确定后必须用黑色字迹的签字笔描黑。
5．保持卡面清洁，不要折暴、不要弄破、弄皱，不准使用涂改液、修正带、刮纸刀。
Ⅰ. 单项选择1、—Many products made in China are very popular in the United States.—Yeah. Americans can avoid buying Chinese products.A．nearly B．mostly C．hardly D．widely2、— Tom, which subject do you like ______, math or English?— Math.A．well B．better C．best D．the best3、---Is he __________ American or is he_______ European?---Neither. In fact，he is from Australia.A．an，an B．an，a C．a，an D．a，a4、Ben was helping his mother when the rain began to beat heavily ________ the windows.A．below B．acrossC．against D．behind5、Another new road ______ near my school next year.A．builds B．will build C．is built D．will be built6、—When do you think is the best time to visit Yancheng?—You come here in spring or autumn. The weather is quite pleasant.A．had better B．would rather C．have to D．would like7、–Look! What a mess it is in your room!–Sorry, I will______ my school things and tidy it right now.A．put up B．put out C．put away D．put off8、-What do you think of Li Ming?-He is a serious boy. If he ____________ the tasks, he will try his best to finish them well.A．will be given B．is given C．gives D．will give9、Think of others more than yourself. A person______cares for others is popular everywhere.A．who B．which C．whom D．whose10、--Jane, could you tell me _____ the ticket yesterday?--Oh ,yes. I bought it online.A．where you bought B．where you will buy C．where did you buy D．where will you buyⅡ. 完形填空11、完形填空先通读下面的短文，掌握其大意，然后在A、B、C、D四个选项中选出最佳答案，并在答题卡上将该项涂黑。
江苏省如皋市白蒲镇初级中学2025届数学九上期末综合测试试题含解析
江苏省如皋市白蒲镇初级中学2025届数学九上期末综合测试试题注意事项1．考试结束后，请将本试卷和答题卡一并交回．2．答题前，请务必将自己的姓名、准考证号用0．5毫米黑色墨水的签字笔填写在试卷及答题卡的规定位置．3．请认真核对监考员在答题卡上所粘贴的条形码上的姓名、准考证号与本人是否相符．4．作答选择题，必须用2B 铅笔将答题卡上对应选项的方框涂满、涂黑；如需改动，请用橡皮擦干净后，再选涂其他答案．作答非选择题，必须用05毫米黑色墨水的签字笔在答题卡上的指定位置作答，在其他位置作答一律无效．5．如需作图，须用2B 铅笔绘、写清楚，线条、符号等须加黑、加粗．一、选择题(每小题3分,共30分)1．方差是刻画数据波动程度的量．对于一组数据1x ，2x ，3x ，…，n x ，可用如下算式计算方差：()()()()2222212315555n s x x x x n ⎡⎤=-+-+-+⋅⋅⋅-⎣⎦，其中“5”是这组数据的（ ） A ．最小值B ．平均数C ．中位数D ．众数 2．如图，将一把两边都带有刻度的直尺放在半圆形纸片上，使其一边经过圆心O ，另一边所在直线与半圆相交于点D 、E ，量出半径OC=5cm ，弦DE=8cm ，则直尺的宽度是( )A ．4cmB ．3cmC ．2cmD ．1cm3．某钢铁厂一月份生产钢铁560吨，从二月份起，由于改进操作技术，使得第一季度共生产钢铁1850吨，问二、三月份平均每月的增长率是多少？若设二、三月份平均每月的增长率为x ，则可得方程（ ）A ．2560(1)1850x +=B ．2560560(1)1850x ++=C ．()25601560(1)1850x x +++=D ．()25605601560(1)1850x x ++++= 4．下列函数中，是二次函数的是（ ）A ．y ＝2x +1B ．y ＝（x ﹣1）2﹣x 2C ．y ＝1﹣x 2D ．y ＝5．下列事件中，不可能事件的是（ ）A ．投掷一枚均匀的硬币10次，正面朝上的次数为5次B ．任意一个五边形的外角和等于360︒C ．从装满白球的袋子里摸出红球6．下列事件中，是随机事件的是（ ）A ．任意一个五边形的外角和等于540°B ．通常情况下，将油滴入水中，油会浮在水面上C ．随意翻一本120页的书，翻到的页码是150D ．经过有交通信号灯的路口，遇到绿灯7．如图所示，抛物线y=ax²+bx+c （a≠0）的对称轴为直线x=1，与y 轴的一个交点坐标为(0，3)，其部分图象如图所示，下列5个结论中，其中正确的是（ ）①abc ＞0；②4a+c ＞0；③方程ax²+bx+c=3两个根是1x =0，2x =2；④方程ax²+bx+c=0有一个实数根大于2；⑤当x ＜0，y 随x 增大而增大A ．4B ．3C ．2D ．18．已知y 是x 的反比例函数，下表给出了x 与y 的一些值，表中“▲”处的数为（ ） x 1-1 3 y 33-▲ A ．3 B ．9- C ．1 D ．1- 9．用配方法解方程2410x x ++=，经过配方，得到 （ ）A ．()225x +=B ．()225x -=C ．()223x -=D ．()223x += 10．三角形的一条中位线将这个三角形分成的一个小三角形与原三角形的面积之比等于（ ）A ．12B ．1：2C ．1：4D ．1：1.6二、填空题(每小题3分,共24分)11．某校数学兴趣小组为测量学校旗杆AC 的高度，在点F 处竖立一根长为1．5米的标杆DF ，如图所示，量出DF的影子EF 的长度为1米，再量出旗杆AC 的影子BC 的长度为6米，那么旗杆AC 的高度为_______米．12．若2x =是关于x 的方程22450x x a --+=的一个根，则a 的值为_________________.13．若二次函数24y ax x a =++（a 为常数）的最大值为3,则a 的值为________． 14．如图，Rt ABC ∆中，90ACB ∠=︒，4AC =，将斜边AB 绕点A 逆时针旋转90︒至AB '，连接B C '，则AB C '∆的面积为_______．15．在如图所示的几何体中，其三视图中有三角形的是______（填序号）．16．若关于x 的一元二次方程（a ﹣1）x 2﹣2x+2=0有实数根，则整数a 的最大值为______．17．如图，两个同心圆，大圆半径4OA cm =，60AOB BOC ∠=∠=︒，则图中阴影部分的面积是__________．18．如图，分别以正五边形ABCDE 的顶点A ，D 为圆心，以AB 长为半径画BE ，CE.若AB 1=，则阴影部分图形的周长为______(结果保留π)．三、解答题(共66分)19．（10分）如图，△ABC 中，DE ∥BC ，EF ∥AB ．（1）求证：△ADE ∽△EFC ；（2）若AD ＝4，DE ＝6，AE EC ＝2，求EF 和FC 的值．20．（6分）解方程：2450x x -=+．21．（6分）（1）如图①，在△ABC 中，AB ＝m ，AC ＝n （n ＞m ），点P 在边AC 上．当AP ＝ 时，△APB ∽△ABC ； （2）如图②，已知△DEF （DE ＞DF ），请用直尺和圆规在直线DF 上求作一点Q ，使DE 是线段DF 和DQ 的比例项．（保留作图痕迹，不写作法）22．（8分）若m 为实数，关于x 的方程2420x x m -+-=的两个非负实数根为a 、b ，求代数式22(1)(1)--a b 的最大值．23．（8分）在平面直角坐标系xOy 中的两个图形M 与N ，给出如下定义：P 为图形M 上任意一点，Q 为图形N 上任意一点，如果,P Q 两点间的距离有最小值，那么称这个最小值为图形,M N 间的“和睦距离”，记作(),d M N ，若图形,M N 有公共点，则(),0d M N =．(1)如图（1），()0,1A ，()3,4C ，⊙C 的半径为2，则(),d C C = ，(),d A C = ；(2)如图（2），已知ABC ∆的一边AC 在x 轴上，B 在y 上，且8AC =，7AB =，5BC =．①D 是ABC ∆内一点，若AC 、BC 分别且⊙D 于E 、F ，且()(),2,d C D d D AB =，判断AB 与⊙D 的位置关系，并求出D 点的坐标；②若以r 为半径，①中的D 为圆心的⊙D ，有(),1d B C >，()2d C D <,，直接写出r 的取值范围 ．24．（8分）已知，如图，AB 是O 的直径，AD 平分BAC ∠交O 平点D .过点D 的切线交AC 的延长线于E .求证:DE AE ⊥.25．（10分）学校实施新课程改革以来，学生的学习能力有了很大提高，陈老师为进一步了解本班学生自主学习、合作交流的现状，对该班部分学生进行调查，把调查结果分成四类（A ：特别好，B ：好，C ：一般，D ：较差）．并将调查结果绘制成以下两幅不完整的统计图，请根据统计图解答下列问题：（1）本次调查中，陈老师一共调查了______名学生；（2）将条形统计图补充完整；扇形统计图中D 类学生所对应的圆心角是_________度；（3）为了共同进步，陈老师从被调查的A 类和D 类学生中分别选取一名学生进行“兵教兵”互助学习，请用列表或画树状图的方法求出恰好选中一名男生和一名女生的概率．26．（10分）如图，在ABC 和ADE 中，90BAC DAE ∠=∠=︒，点P 为射线BD ，CE 的交点．（1）问题提出：如图1，若AD AE =，AB AC =．①ABD ∠与ACE ∠的数量关系为________；②BPC ∠的度数为________．（2）猜想论证：如图2，若30ADE ABC ∠=∠=︒，则（1）中的结论是否成立？请说明理由．参考答案一、选择题(每小题3分,共30分)1、B【分析】根据方差公式的定义即可求解. 【详解】方差()()()()2222212315555n s x x x x n ⎡⎤=-+-+-+⋅⋅⋅-⎣⎦中“5”是这组数据的平均数. 故选B ．【点睛】此题主要考查平均数与方差的关系，解题的关键是熟知方差公式的性质.2、B【分析】过点O 作OM ⊥DE 于点M,连接OD ，根据垂径定理“垂直于弦的直径平分弦，并且平分弦所对的两条弧”和勾股定理进行计算，即可求出答案.【详解】过点O 作OM ⊥DE 于点M,连接OD.∴DE=DE ，∵DE=8cm ，在Rt△ODM中，∵OD=OC=5cm，∴∴直尺的宽度为3cm.故答案选B.【点睛】本题主要考查了垂径定理和勾股定理，灵活运用这些定理是解答本题的关键.3、D【解析】第一个月是560，第二个月是560（1+x），第三月是560（1+x）2，所以第一季度总计560+560（1+x）+560（1+x）2=1850，选D.4、C【解析】根据二次函数的定义进行判断．【详解】解：A、该函数是由反比例函数平移得到的，不是二次函数，故本选项错误；B、由已知函数解析式得到：y＝－2x＋1，属于一次函数，故本选项错误；C、该函数符合二次函数的定义，故本选项正确；D、该函数不是二次函数，故本选项错误；故选：C．【点睛】本题考查二次函数的定义．熟知一般地，形如y＝ax2＋bx＋c（a、b、c是常数，a≠0）的函数，叫做二次函数是解答此题的关键．5、C【分析】根据事件发生的可能性大小判断相应事件的类型即可．【详解】解：A、投掷一枚硬币10次，有5次正面朝上是随机事件；B、任意一个五边形的外角和是360°是确定事件；C、从装满白球的袋子里摸出红球是不可能事件；D、大年初一会下雨是随机事件，故选：C．【点睛】本题考查的是必然事件、不可能事件、随机事件的概念．必然事件指在一定条件下，一定发生的事件．不可能事件是指在一定条件下，一定不发生的事件，不确定事件即随机事件是指在一定条件下，可能发生也可能不发生的事件．6、D【详解】∵任意一个五边形的外角和等于540°，是必然事件，∴A 不符合题意，∵通常情况下，将油滴入水中，油会浮在水面上，是必然事件，∴B 不符合题意，∵随意翻一本120页的书，翻到的页码是150，是不等能事件，∴C 不符合题意，∵经过有交通信号灯的路口，遇到绿灯，是随机事件，∴D 符合题意，故选D ．【点睛】本题主要考查随机事件的定义，掌握必然事件，随机事件，不可能事件的定义，是解题的关键．7、B【分析】根据二次函数图象的开口方向、对称轴位置、与x 轴的交点坐标等知识，逐个判断即可．【详解】抛物线开口向下，a ＜0，对称轴为直线x ＝1＞0，a 、b 异号，因此b ＞0，与y 轴交点为（0，3），因此c ＝3＞0，于是abc ＜0，故结论①是不正确的；由对称轴为直线x ＝− 2b a＝1得2a ＋b ＝0，当x ＝−1时，y ＝a−b ＋c ＜0，所以a ＋2a ＋c ＜0，即3a ＋c ＜0，又a ＜0，4a ＋c ＜0，故结论②不正确；当y ＝3时，x 1＝0，即过（0，3），抛物线的对称轴为直线x ＝1，由对称性可得，抛物线过（2，3），因此方程ax 2＋bx ＋c ＝3的有两个根是x 1＝0，x 2＝2；故③正确；抛物线与x 轴的一个交点（x 1，0），且−1＜x 1＜0，由对称轴为直线x ＝1，可得另一个交点（x 2，0），2＜x 2＜3，因此④是正确的；根据图象可得当x ＜0时，y 随x 增大而增大，因此⑤是正确的；正确的结论有3个，故选：B ．【点睛】考查二次函数的图象和性质，掌握a 、b 、c 的值决定抛物线的位置以及二次函数与一元二次方程的关系，是正确判断的前提．8、D【分析】设出反比例函数解析式，把13x y =-=，代入可求得反比例函数的比例系数，当3x =时计算求得表格中未知的值.【详解】y 是x 的反比例函数，k y x∴=， 1x =-，3y =，133k xy ∴==-⨯=-，∴当3x =时，313y -==-， 故选：D.【点睛】本题考查了用待定系数法求反比例函数解析式；点在反比例函数图象上，点的横纵坐标适合函数解析式，在同一函数图象上的点的横纵坐标的积相等．9、D【分析】通过配方法的步骤计算即可；【详解】2410x x ++=，241x x +=-，2224212++=-+x x ，()223x +=，故答案选D ．【点睛】本题主要考查了一元二次方程的配方法应用，准确计算是解题的关键．10、C【分析】中位线将这个三角形分成的一个小三角形与原三角形相似，根据中位线定理，可得两三角形的相似比，进而求得面积比．【详解】根据三角形中位线性质可得，小三角形与原三角形相似比为1：2，则其面积比为：1：4，故选C ．【点睛】本题考查了三角形中位线的性质，比较简单，关键是知道面积比等于相似比的平方．二、填空题(每小题3分,共24分)11、2【分析】在同一时刻物高和影长成正比，即在同一时刻的两个物体，影子，经过物体顶部的太阳光线三者构成的两个直角三角形相似．根据相似三角形的对应边的比相等，即可求解．【详解】解：∵DE ∥AB ，DF ∥AC ，∴△DEF ∽△ABC ， ∴DF EF AC BC=， 即1.516AC =， ∴AC=6×1.5=2米． 故答案为：2．【点睛】本题考查了相似三角形在测量高度时的应用，解题时关键是找出相似的三角形，然后根据对应边成比例列出方程，建立适当的数学模型来解决问题．12、±1【分析】将x=2代入方程，列出含字母a 的方程，求a 值即可.【详解】解：∵x=2是方程22450x x a --+=的一个根，∴2224250a -⨯-+=，解得，a=±1.故答案为：±1.【点睛】本题考查方程解的定义，理解定义，方程的解是使等式成立的未知数的值是解答此题的关键.13、-1【分析】根据二次函数的最大值公式列出方程计算即可得解． 【详解】由题意得，22444344ac b a a a a--==， 整理得，2340a a --=，解得：1241a a ==-，，∵二次函数有最大值，∴0a <，∴1a =-．故答案为：1-．【点睛】本题考查了二次函数的最值，易错点在于要考虑a 的正负情况．14、8【分析】过点B'作B'E ⊥AC 于点E ，由题意可证△ABC ≌△B'AE ，可得AC=B'E=4，即可求△AB'C 的面积．【详解】解：如图：过点B'作B'E ⊥AC 于点E∵旋转 ∴AB=AB'，∠BAB'=90°∴∠BAC+∠B'AC=90°，且∠B'AC+∠AB'E=90°∴∠BAC=∠AB'E ，且∠AEB'=∠ACB=90°，AB=AB'∴△ABC ≌△B'AE （AAS ）∴AC=B'E=4∴S △AB'C= '11448.22AC B E •=⨯⨯= 故答案为：8．【点睛】本题考查了旋转的性质，全等三角形的判定和性质，利用旋转的性质解决问题是本题的关键．15、①【分析】主视图、左视图、俯视图是分别从物体正面、左面和上面看，所得到的图形，据此【详解】解：圆锥的主视图、左视图是等腰三角形，俯视图是带有圆心的圆，长方体主视图，左视图，俯视图都是矩形，圆柱体的主视图是矩形，左视图是矩形，俯视图是圆，所以三视图中有三角形的是①.故答案为①【点睛】本题主要考查三视图的知识，熟练掌握常见几何体的三视图是解题的关键．16、1【解析】试题分析：根据一元二次方程的根的判别式，直接可求△=24b ac -=2(2)4(1)2a --⨯-⨯=4-8a+8≥0，解得a≤32，因此a 的最大整数解为1. 故答案为1. 点睛：此题主要考查了一元二次方程根的判别式△=b 2-4ac ，解题关键是确定a 、b 、c 的值，再求出判别式的结果.可根据下面的理由：（1）当△>0时，方程有两个不相等的实数根；（2）当△=0时，方程有两个相等的实数根；（3）当△<0时，方程没有实数根．17、283cm π 【分析】根据题意可知，阴影部分的面积等于半径为4cm ，圆心角为60°的扇形面积.【详解】∵60AOB BOC ∠=∠=︒，4OA cm =，∴阴影部分的面积为扇形OBC 的面积：22260483603603n r S cm πππ⨯⨯===， 故答案为：283cm π. 【点睛】本题主要考查了阴影部分面积的求法，熟练掌握扇形的面积公式是解决本题的关键.18、65π+1．【详解】解：∵五边形ABCDE 为正五边形，AB =1，∴AB =BC =CD =DE =EA =1，∠A =∠D =108°，∴BE =CE =108180 •πAB =35π，∴C 阴影=BE +CE +BC =65π+1． 故答案为65π+1．三、解答题(共66分)19、（1）证明见解析；（2）EF ＝2，FC ＝1．【分析】（1）由DE ∥BC 可得出△ADE ∽△ABC ，由EF ∥AB 可得出△EFC ∽△ABC ，再利用相似于同一三角形的两三角形相似可证出△ADE ∽△EFC ；（2）由△ADE ∽△EFC ，利用相似三角形的性质可求出EF 和FC 的值．【详解】（1）证明：∵DE ∥BC ，∴△ADE ∽△ABC ；∵EF ∥AB ，∴△EFC ∽△ABC ，∴△ADE ∽△EFC ．（2）∵△ADE ∽△EFC ， ∴EF EC FC AD AE DE ==，即1426EF FC ==， ∴EF ＝2，FC ＝1．【点睛】本题考查相似三角形的判定和性质，熟练掌握平行线截得的相似三角形模型是解题的关键.20、15x =-，21x =【分析】通过观察方程形式，利用二次三项式的因式分解法解方程比较简单．【详解】解：原方程变形为()()150x x -+=∴15x =-，21x =．【点睛】此题考查因式分解法解一元二次方程，解题关键在于掌握运算法则．21、（1）2m n；（2）见解析. 【分析】（1）根据相似三角形的判定方法进行分析即可;（2）直接利用相似三角形的判定方法以及结合做一角等于已知角进而得出答案．【详解】（1）解：要使△APB ∽△ABC 成立，∠A 是公共角，则AB AC AC AP =,即m n n AP =,∴AP=2m n. （2）解：作∠DEQ ＝∠F ,如图点Q 就是所求作的点【点睛】本题考查了相似变换，正确掌握相似三角形的判定方法是解题的关键．22、1【分析】根据根的判别式和根与系数的关系进行列式求解即可；【详解】∵420=16-4(2)0+=⎧⎪⋅=-≥⎨⎪∆-≥⎩a b a b m m ， ()2016420m m -≥⎧∴⎨--≥⎩， 26∴≤≤m ，22(1)(1)--a b ，222=(ab)()1-++a b ，22=(ab)()21⎡⎤-+-+⎣⎦a b ab ，2=(m-2)162(2)1-+-+m ，当2m =时，原式=-15，当6m =时，原式=1，∴代数式22(1)(1)--a b 的最大值为1．【点睛】本题主要考查了一元二次方程的知识点，准确应用根的判别式和根与系数的关系是解题的关键．23、（1）2，2；（2）①AB 是⊙D的切线，12D ⎛ ⎝；②1r <<12r <<． 【分析】（1）根据图形M ，N 间的“和睦距离”的定义结合已知条件求解即可．（2）①连接DF ，DE ，作DH ⊥AB 于H ．设OC ＝x ．首先证明∠CBO ＝30︒，再证明DH ＝DE 即可证明AB 是⊙D 的切线，再求出OE,DE 的长即可求出点D 的坐标．②根据(),1d B C >，()2d C D <,得到不等式组解决问题即可．【详解】（1）∵A （0，1），C （3，4），⊙C 的半径为2，∴d （C ，⊙C ）＝2，d （O ，⊙C ）＝AC−222=，故答案为2；2；（2）①连接DF DE ，，作DH AB ⊥于H .设OC x =．∵22222OB BC OC AB AO =-=-，∴()2222578x x -=--， 解得52x =， ∴2BC OC =，∴30CBO ∠=，60BCO ∠=，∵CE CF ，是⊙O 的切线，∴CD 平分BCA ∠，∴30DCE DCB ∠=∠=，∴2DC DE =，∵()()2d C D d D AB =，，，∴2CD DH =，∴DH DE =，∴AB 是⊙D 的切线． ∵533OB OC ==， 设DF DE DH y ===， ∵()1122ABC S AC OB AC BC AB y ∆=⋅⋅=⋅++⋅， ∴3y = ∴33CE DE ==，223CD DE == ∴51322OE =-=，∴132D ⎛⎫ ⎪⎝⎭，， ②∵532OB =∴B （0，532） ∴BD=22153722⎛⎫⎛⎫+= ⎪ ⎪ ⎪⎝⎭⎝⎭由CD 23=，(),1d B C >，()2d C D <,得71232r r ⎧-⎪⎨-⎪⎩＞＜解得2371r <<-或71232r +<<+故答案为：2371r <<-或71232r +<<+． 【点睛】本题属于圆综合题，考查了图形M ，N 间的“和睦距离”，解直角三角形的应用，切线的判定和性质，不等式组等知识，解题的关键是理解题意，灵活运用所学知识解决问题，属于中考压轴题．24、详见解析.【分析】连接OD ，由切线的性质可知∠ODE=90°，证OD ∥AE 即可解决问题；【详解】连接OD .DE 是O 的切线，OD DE ∴⊥，90ODE ∴∠=︒，OA OD =，OAD ODA ∠=∠∴，AD 平分BAC ∠，CAD DAB ∴∠=∠，CAB ADO∴∠=∠，//OD AE∴，180E ODE∴∠+∠=︒，90E∴∠=︒，DE AE∴⊥.【点睛】本题考查切线的性质，平行线的判定和性质等知识，解题的关键是熟练掌握基本知识，属于中考常考题型．25、（1）20；（2）见解析，36；（3）见解析，1 2【分析】（1）由题意根据对应人数除以所占比值即可求出陈老师一共调查了多少名学生；（2）根据题意补充条形统计图并D类学生所对应的整个数据的比例乘以360°即可求值；（3）根据题意利用列表法或树状图法求概率即可.【详解】解：（1）由题意可得：（6+4）÷50%=20；（2）C类学生人数：20×25%=5（名），C类女生人数：5-2=3（名），D类学生占的百分比：1-15%-50%-25%=10%，D类学生人数：20×10%=2（名），D类男生人数：2-1=1（名），补充条形统计图如图D类学生所对应的圆心角：220×360°=36°；（3）由题意画树形图如下：所有可能出现的结果共有6种，且每种结果出现的可能性相等，所选两位同学恰好是一位男同学和一位女同学的结果共有3种．所以P （所选两位同学恰好是一位男同学和一位女同学）=36=12； 解法二：列表如下，A 类学生中的两名女生分别记为A1和A2，共有6种等可能的结果，其中，一男一女的有3种，所以所选两名学生中恰好是一名男生和一名女生的概率为36＝12. 【点睛】本题考查列表法或树状图法求概率以及条形统计图与扇形统计图．熟练掌握概率等于所求情况数与总情况数之比是解题关键．26、（1）ABD ACE ∠=∠；90︒；（2）成立，理由见解析【分析】（1）①依据等腰三角形的性质得到AB=AC ，AD=AE ，依据同角的余角相等得到∠DAB=∠CAE ，然后依据“SAS”可证明△ADB ≌△AEC ，最后，依据全等三角形的性质可得到∠ABD=∠ACE ；②由三角形内角和定理可求∠BPC 的度数；（2）由30°角的性质可知2AB AC =，2AD AE =，从而可得::AD AB AE AC =，进而可证ADB AEC △∽△，由相似三角形的性质和三角形内角和即可得出结论；【详解】（1）①∵△ABC 和△ADE 是等腰直角三角形，∠BAC=∠DAE=90°，∴AB=AC ，AD=AE ，∠DAB=∠CAE,∠ABC=∠ACB=45°, ∴△ADB ≌△AEC （SAS ）,∴∠ABD=∠ACE ，②∵∠BPC=180°-∠ABD-∠ABC-∠BCP=180°-45°-（∠BCP+∠ACE ）, ∴∠BPC=90°, 故答案为： ABD ACE ∠=∠；90︒（2）（1）中结论成立，理由：在Rt ABC △中，30ABC ∠=︒，∴2AB AC =．在Rt ADE △中，30ADE ∠=︒，∴2AD AE =，∴::AD AB AE AC =，∵90BAC DAE ∠=∠=︒，∴BAD CAE ∠=∠，∴ADB AEC △∽△．∴ABD ACE ∠=∠；∵18018030()BPC ABD ABC BCP BCP ACE ∠=︒-∠-∠-∠=︒-︒-∠+∠∴90BPC ∠=︒．【点睛】本题是三角形综合题，主要考查的是旋转的性质、等腰三角形的性质、全等三角形的性质和判定、含30°角的直角三角形的性质，以及相似三角形的性质和判定，证明得ADB AEC △∽△是解题的关键．。
浙江省杭州市滨江区2023-2024学年九年级上学期期末语文试题(含答案)
2023学年第一学期期末学业水平测试九年级语文考生须知：1．本试卷满分120分，考试时间120分钟。
2．答题前，请在答题纸指定位置填写校名、班级、姓名、座位号和准考证号。
3．必须在答题纸相应位置上答题，写在其它地方无效，答题方式详见答题纸上的说明。
一、梳理语言文字（24分）【汉字探源】1．根据提示，补全表格内容。
（7分）我国古代人们在仰观俯察万物的过程中不断发现、领悟，发明了汉字。
经过演变和发展，汉字逐渐成为表意的文字系统，记zǎi （1） 着深厚的中华文化。
（填汉字）字形字义理解关联思考“人”是象形字，甲骨文像一个侧立的人，可以看到一臂一胫，在大地上直立行走。
行走天地间的人应像范仲淹在《岳阳楼记》所写的那样：“先天下之忧而忧，（2） 。
”“仰”，举也。
其义可由人和卯来推断，本义为抬头，脸向上。
苏轼在《水调歌头》中仰视天宫：“我欲乘风归去， （3） ，（4） 。
”汉字在使用中可引申发展出相关的意义。
范进道：“晚生久仰老先生，只是无缘，不曾拜会。
”这里“仰”的意思是 （5） 。
“俯”是形声字，与仰相对。
金文像人趴伏在地上，本义是 （6） ，如“俯首”。
字词在语境中可发展出比喻义，“俯首称臣”中的“俯首”的意思是 （7） 。
【字词内涵】2．2023年海峡两岸年度汉字为“融”，解说如下。
回顾你的2023年，你会用哪一个汉字来作为自己的年度汉字呢？请写出自己的年度汉字并结合学习生活体验写一段文字解说。
要求：观点明确，表述清晰，语言顺畅，120字左右。
（6分）解说示例：“融”，融合。
融合是海峡两岸共同的心声。
“兄弟同心，其利断金”是“融”：“和而不同，互相包容”是“融”。
一个“融”字，众望所归，代表了两岸同胞要和平、要交流、要合作、要发展的愿望。
两岸同胞融为一体，其乐融融，共创中华民族的美好明天。
【对句理解】3．根据语境，将下面横线处填写完整。
（4分）“对句”由字数相同、文意相对的两个句子组成，上下句结构一致，意义彼此呼应，相得益zhāng（1） 。
山东省泰安市岱岳区2025届英语九上期末达标测试试题含解析
山东省泰安市岱岳区2025届英语九上期末达标测试试题注意事项1．考生要认真填写考场号和座位序号。
2．试题所有答案必须填涂或书写在答题卡上，在试卷上作答无效。
第一部分必须用2B 铅笔作答；第二部分必须用黑色字迹的签字笔作答。
3．考试结束后，考生须将试卷和答题卡放在桌面上，待监考员收回。
Ⅰ. 单项选择1、---Look! The woman is wrinkling her nose at what the waiter brought.--- _______it means she doesn’t like how the food looks.A．Must B．Perhaps C．Could D．probably2、--- My baby daughter will be much ______ in this red dress.--- Sure she will.A．beautiful B．more beautiful C．most beautiful D．the most beautiful3、–Excuse me, haven’t you learned the rules? Drivers can’t go when the light is yellow .-- Sorry, we won’t do that again.A．traffic B．foodC．medicine D．education4、—Do you dream of being a doctor or a pilot?—. I want to work for people’s health.A．A pilot B．Yes, I do C．No, I’m not D．A doctor5、________you please help me with my math problem?—OK, after I finish mine, I'll help you.A．Must B．Could C．May D．Might6、---Could you tell me the_______of making such tasty cakes?---Well，I just follow the instructions in the cookbook.A．time B．methodC．cost D．menu7、Bacon said that ________ is power, so we must study hard to make progress.A．medicine B．knowledge C．food8、—I called you several times last night, but there was no answer.—Oh, I’m really sorry. I ____ my mobile phone at the office yesterday.A．have left B．was leaving C．left9、In China, spring comes in March. The weather ______ warmer and the days are longer.A．gets B．sounds C．smells D．tastes10、Please______the call to the sales department if the customer rings up for me again,.A．run through B．look through C．go through D．put throughⅡ. 完形填空11、This is Lucy and that is Lily. They are sisters. They 1 from America. They are students in No.2 Middle School. They go to school 2 days a week. On Saturday and Sunday they 3 go to school. They stay at home(在家) or go to play with their friends. 4 is their favorite sport. Their father, Mr. Smith, is 5 teacher. He teaches(教) English. But he is not 6 his daughters' school. He is in No.5 Middle School. He likes7 students.Lucy and Lily’s 8 , Mrs. Smith, has a flower shop(花店). Flowers in her shop have nice 9 — purple, yellow, white, red and so on. Mrs. Smith 10 very happy to work in her flower shop. Her daughters, Lucy and Lily, work there on Sunday morning, too.1．A．go B．know C．come2．A．four B．five C．six3．A．aren’t B．don’t C．doesn’t4．A．Blue B．Tennis C．English5．A．a B．an C．/6．A．on B．in C．of7．A．her B．his C．their8．A．sister B．aunt C．mother9．A．number B．name C．colors10．A．am B．is C．areⅢ. 语法填空12、阅读下面的材料，在空白处填入适当的内容（不超过3个单词）Good and bad manners make up the social rules of a country. They are not always easy to learn because they’re often not written in books. Let’s have a1．at some social rules in Britain.In the past, British women didn’t go to pubs(酒吧) because it 2．(consider) bad behavior for a woman. But as time goes by, 3．women and men can drink freely in pubs now.Visitors to Britain often see British people wait in queues(行列) in public places, like the bus stop. It is considered impolite to get on a 4．without waiting your turn in the queue. Queuing is a national habit in Britain and it’s considered good manners to wait your turn.In some countries, it’s considered bad manners to eat on the street. 5．, in Britain, it’s common f or you to see people having a snack ahead 6．you on the street.British people used 7．(be) surprised to see young children weren’t usually taken out to restaurant late at night. And ifthey 8．(make) a noise in a restaurant, it was regarded as impolite behavior. Nowadays, children are playing a more active role and they 9．(accept) in many pubs and restaurants.Recently, many British companies have banned smoking in the offices and canteens. Smoking is a also banned on the London. Underground, in cinemas and on most buses. If someone breaks the rule, he/she 10．(pay) for it. In general, it’s becoming less acceptable to smoke in a public place than before. Social rules are an important part of every country. The British have an expression for following these “unwritten rules”: When in Rome, do as Romans do.Ⅳ. 阅读理解A13、William Blake described the eyes as the “windows of the soul.” Our eyes are the windows through which we see the world around us. Either way, there’s no question that we place great value on our eyes and our eyesight. Surveys have shown that of the five senses, sight is the one that people fear losing the most.Thinking about the important function of our eyes, we’d give them the best care possible, but sometimes we get too busy or forget to do a few simple things that can keep our eyes healthy.Protecting your eyes starts with the food on your plate. Remember when you were a kid and your mom told you that carrots would improve your eyesight. Well, she might be right. Proper food will keep your eyes strong and healthy.Give up your daily habits that could seriously injure your eyes. Always wear sunglasses in a sunny day to protect your eyes from ultraviolet ray（紫外线）. Rest your eyes every 20 minutes from the computer screen by looking 20 feet away for 20 seconds. At least every 2 hours, get up and take a 15-minute break when working at a computer.Make sure your eyes do not get injured in the first place. Y ou should try to prevent eye injuries whether you’re playing sports or doing housework. You should also know when to wear safety glasses and what kinds will work best for you.Last but not least, get your eyes examined regularly. Eye exams can help find some eye diseases. It’s important to find these diseases early on, when they’re easier t o treat.1．According to a survey, people fear losing ▲ most.A．their sights B．their hearings C．their smells D．their tastes2．The underlined word function might mean “▲ ” in Chinese.A．差异B．功能C．优势D．问题3．▲ is NOT a good way to protect your eyes.A．Eating carrots B．Wearing sunglassesC．Working at computers D．Using safety glasses4．Finding eye diseases early on through eye exams ▲ .A．saves much work for the doctors B．is helpful for the treatmentC．provides you the best care of your eyes D．wastes much of your money5．What is the best title of the passage?A．Give Your Eyes Some RestB．Good Habits Bring HealthC．Protect the Windows of the SoulD．Simple Way of Eye Exams wastes much of your moneyB14、Different countries have different customs. When you are in different countries, you should follow their customs.In China, it’s impolite to talk when eating dinner. And you’re not supposed to start eating first if there are older people at the table.Very often people who travel to the United States forget to tip(付小费). It is usual to tip waiters, taxi drivers and porters who help carry your bags. Waiters expect to get a 15% tip on the cost of your meal. Taxi drivers expect about the same amount.In England, make sure to stand in line even if there a re only two of you. It’s important to respect (尊重) lines there. It’s a good idea to talk about the weather. It’s a favorite subject of conversation with the British.In Spain (西班牙), it’s a good idea to have a light meal in the afternoon if someone invites you for dinner. People have dinner very late, and restaurants do not generally open until after 9:00 pm.In Saudi Arabia (沙特阿拉伯), men kiss one another on the cheek (脸颊). Your host may welcome you with a kiss on both cheeks. It is polite for you to do the same.In Japan, people usually give personal or business cards to each other when they meet for the first time. When a person gives you a card, don’t put it into your pocket (口袋) as soon as you get it. The person expects you to read it.Don’t forget to be c areful of your body language to express something in conversations. A kind of body language that is acceptable in one culture may be impolite in another.1．How many countries are mentioned in this passage?A．Four. B．Five. C．Six. D．Seven.2．If you travel to the US, you spend $ 200 on a taxi ride and $320 on a meal, you are supposed to tip ______ in total. A．$520 B．$78 C．$156 D．$603．Which of the following is True?A．Y ou are expected to kiss your host on the cheek in Japan.B．Generally, rest aurants don’t offer dinner after 9:00 pm in Spain.C．It’s impolite to eat first if there are older people at the table in China.D．Y ou don’t need to stand in line if there are two people waiting for a bus in England.C15、 A young American doctor was really hard - working in hospital in the daytime. One day, he worked off the night shift (下班). He felt tired because of the work the whole day. He was asleep at home. All of a sudden he heard his door bell began to ring. It was late at night. But what could the doctor do? He had to put on his coat. He opened the door. It was a man! He was standing outside with a hat in his hand anxiously."How do you do?" said the man," Can you come at once to a place out of town? It's a long distance to reach, but you have a car and “I can show you the way." "Certainly?" said the doctor. "I can come at once."The car was at the front door. The man got on the doctor's car and they drove off. They drove fast at night for a long time, and then the man said to the doctor, "Here we are. This is the place. Here is my home. Now I can give you money, and you can go back to the town.""But I must see the patient, the doctor said, “How can I go back without seeing the patient?"The man said," _______There are no taxis at this time of night, but a doctor often goes out for night calls (夜诊). So, excuse me, here’s your money. Thank you, doctor. Good night!”1．The underlined word “a long distance to reach" most probably means________A．quite far B．long period C．really quiet2．The man asked the doctor________.A．to give him a present B．to give him a car C．to go to a place out of town3．The man gave the doctor money because___________A．they were friendsB．the doctor took him late nightC．the doctor couldn't go to bed early4．Which of the following is TRUE according to the passage?A．The doctor knew the man had a headache in fact at last.B．In fact the man wanted the doctor to take him out of town by car.C．The car stopped in front of the hospital to take the man home.5．“__________” can be the missing sentences in the passage.A．My parents are ill. Let’s go upstairs quickly.B．There’s no patient. I want you to have a good rest here.C．There’s no patient. No one is ill. I live here.D16、Advertising is a highly developed twentieth-century industry. The development of radio, television, cinema,magazines and newspapers has gone hand in hand with the development of advertising. Why is advertising so popular? Is it a waste of money? It has been proved again and again that repeated advertising increases product sales. Since it increases production, the price can be reduced. Therefore advertising, instead of making a product more expensive, makes it cheaper.Advertising is now a scientific business. Once managers would say jokingly, “ I know that ha lf of what I spend on advertising is wasted, but I don't know which half.” Now, all parts of an advertising programs are properly measured and researched.What makes a good advertisement? There have been major changes in advertising in the past sixty years. People read advertisements partly for information and partly for pleasure. Today's advertisements often start with a question, or a puzzle, with the purpose of attracting the reader's attention. Of course, most advertisements contain information. But this is usually contained in a text that is interesting and often funny. Humor is very important. Sometimes advertisements tell a story, or the story may be continued over a number of advertisements. However, there is a danger in this. It is possible that the reader or viewer will remember the advertisement but not the name of the product. 1．Which of the following can be used in place of the underlined phrase “hand in hand” ?A．Here and there. B．Again and again.C．As usual. D．At the same time.2．The purpose of advertising is ____.A．to increase product sales B．to make a product much betterC．to spend more money D．to reduce the production3．What is meant by what managers said in the second paragraph?A．Managers spent no money on advertising.B．Not all the advertisements were well designed.C．A11 the managers knew about advertising then.D．A11 the money on advertising was wasted.4．An outstanding advertisement_______A．is always an interesting story.B．can not only catch the reader's eyes but is full of products’ information.C．must starts with a question, or a puzzle.D．can make the price of the product low5．What does the writer think of advertising?A．Useless B．Unnecessary C．Wasteful D．ImportantE17、Although I didn’t have any interest in being a school bus driv er, I became one. Many years later, I was still working on the school bus. There are so many good reasons. Firstly, the talk brought me different kinds of information. I also got to hear all the family secrets of the newcomers. I have a toy bear who was a great comforter(安慰者) for the little ones. The kids got to look after him on the trip to school and he waited patiently forthemto get on for the trip home.Our bus would often pass a place where we could see some alpacas (羊驼) in front of a farm house. Little Michael would cry excitedly from the seat, “Look, Miss! Look at the camels!” He used to put his head out of the bus window. When I warned him that a little insect would come into his nose if he wasn’t careful, he smartly gave up the habit.I remember a little girl got on the bus one morning 5 years ago and sobbed(抽泣) all the way to school. We arrived at the school gate. As she waited to get down the bus, she threw her arms around my neck and cried that her grandfather had died the night before.A school bus driver needs to keep one eye on the road and the other on the mirror to watch what the little ones are doing down the back.Now, it’s important to think how many lives I’ve been responsible(负责的) for, and how many kilometers I’ve driven in order to get my passengers home safely during the 20 years. I’ve enjoyed it, but it’s time to rest and park my school bus. 1．When did the writer begin to be a school bus driver?A．5 years ago. B．10 years ago. C．20 years ago. D．30 years ago.2．What does the un derlined word “them” in the first paragraph refer to (所指)?A．toy bears B．kids C．school buses D．secrets3．Which of the following is TRUE?A．Children didn’t like the driver.B．The driver likes the job all the time.C．The little girl was excited at seeing the camels.D．Children sometimes talked about their family secrets on the bus.4．The writer didn’t give up her job because.A．driving was her hobbyB．children made her valuableC．drivers were paid wellD．children loved her toy bear5．What may the writer’s future plan be?A．She decides to stop the job.B．She tries to go on driving.C．She wants to have a holiday.D．She hopes to help more kids.F18、In most space-themed films, whenever Earth faces a disaster, the solution is always running away from the planet in spaceship. But the latest Chinese sci-fi movie, The Wandering Earth, offers a different idea.The movie is based on a short story by Chinese sci-fi writer Liu Cixin. In the film, Earth is in danger of being destroyed by the dying sun. Half of our planet’s population is already dead and big cities such as Beijing and Shanghai are destroyed. To save the Earth, the whole world works together and comes up with a plan: Move the whole planet to a safe place. Instead of running away from Ear th, this time we’re taking it with us.Earth goes wherever humans go, because it’s our home. That makes The Wandering Earth different for Hollywood-style space films. And the makers of the film may have chosen the best time to tell its Chinese sci-fi story. The film was shown on Feb.5, the first day of Chinese New Year. Ti was a time when many people had just made the hard journey back to their hometowns. “What is Chinese sci-fi?” Guo Fan, the film’s director, said in an interview. “Chinese sci-fi can rea lly express our culture and spirit. If we can’t do that, we’re just copying and telling the same American stories.”I think this is a great movie. When facing a disaster, people from different parts of the world work together to save out planet. I was actu ally moved to tears by it. It is a movie you can’t miss.1．In the latest Chinese sci-fi movie, _____ will destroy our planetA．Earth B．humans C．aliens D．the sun2．Who thinks of the plans to move the Earth in the film?A．Liu Cixin B．The whole world C．Chinese D．Guo Fan3．According to the passage, we know that ______A．Chinese sci-fi movie are the same as Hollywood-style space filmsB．The Wandering Earth tells us a story about a superhero.C．The writer loves The Wandering Earth because it’s an interesting Chin ese movieD．The Wandering Earth expresses the spirit of Chinese people.Ⅴ.书面表达19、假如你是李华，是一名初三学生，2018年被评为“校园运动之星”（the School Sports Star of 2018）。
甘肃省会师中学2025届英语九上期末学业水平测试试题含解析
甘肃省会师中学2025届英语九上期末学业水平测试试题考生须知：1．全卷分选择题和非选择题两部分，全部在答题纸上作答。
选择题必须用2B铅笔填涂；非选择题的答案必须用黑色字迹的钢笔或答字笔写在“答题纸”相应位置上。
2．请用黑色字迹的钢笔或答字笔在“答题纸”上先填写姓名和准考证号。
3．保持卡面清洁，不要折叠，不要弄破、弄皱，在草稿纸、试题卷上答题无效。
Ⅰ. 单项选择1、The boy is old enough to dress ____ now.A．himself B．herself C．myself2、—You look so sad. What happened?一The exam to be much harder than I thought.A．broke out B．carried out C．put out D．turned out3、Shirley is the girl ______ taught me how to use Wechat(微信).A．whom B．which C．who4、-- ________ coming earlier, we can easily find a good seat in the theater.-- You made a wise decision.A．Instead of B．Thanks to C．As for D．Except for5、Andy doesn’t want to see the film Coco because he it twice.A．sees B．is seeing C．will see D．has seen6、Vivien worked very hard at all her lessons. __________, she became the top student in her class.A．In order to B．As a result C．As usual D．For example7、—Excuse me, could you please tell me the way to the museum?—I’m sorry. I haven’t been there before. You may ask ____________.A．somebody else B．else anybody C．else somebody D．anybody else8、Not only Ciqikou but Hongyadong ________ well-known to people around China now.A．is B．are C．was D．were9、—What about the fire happened yesterday?—Not serious. Before the firemen came, it had been ______________ by the villagers.A．put away B．put up C．put on D．put out10、—How noisy it is outside!—Oh, I forgot to tell you. My neighbours ________ their houses.A．have decorated B．were decoratingC．are decorating D．will decorateⅡ. 完形填空11、When I was about 13. I had an enemy. She was a girl 1 liked to point out my shortcomings(缺点).Sometimes she said I was lazy. Sometimes she said I wasn't a good student. Sometimes she said I 2 too much.At last, I became very angry. I ran to my father.My father listened to me 3 , and then he asked, “Are the things she said true or not? Go and make a list of everything she said and mark the points that are true. Pay no attention to 4 things she said.”I returned to my room and did as my father told me. To my 5 , I found that about half the things were true. I brought the list back to my father. He 6 to take the list. "that's just for you, " he said. "When something said about you is true, you'll find it will be 7 to you. Listen to them all, 8 hear the truth. Then do what you thinkMany years have passed. The 9 often appears in my mind. In our life we often meet with some trouble and we often go to someone and ask for 10 or some advice you will treasure all your life!1．A．what B．who C．which D．whom2．A．told B．expressed C．discussed D．talked3．A．quietly B．quickly C．excitedly D．happily4．A．other B．the other C．another D．any5．A．difficulty B．sadness C．surprise D．happiness6．A．agreed B．liked C．wanted D．refused7．A．healthy B．helpful C．colorful D．harmful8．A．but B．and C．so D．or9．A．condition B．situation C．instruction D．direction10．A．expressions B．messages C．advice D．helpⅢ. 语法填空12、If you need to call your parents but your phone is not with you, can you remember their numbers?To remember 11 numbers is not difficult.1．, because of the smartphone (智能手机), many of us2．(lose) this ability , Chinese daily reported. What’s more, smartphones make our skills at giving directions weak, as well as3．(kill)face-to-face communications. Even when friends are having a meal together, 4．common for most to check their phones. According to a report by Kleiner Perkins Caufield Byers, 5．American company, Chinese people spend on average 170 minutes on their smartphones daily. For students, an addiction(上瘾) to smartphones does no good for6．(study). Research in Japan showed children who spend more than four hours a day on their phones do much worse7．(bad) in school tests than those who play with their phones for 30 minutes.It’s true that the smartphone has made our lives easier. But many also think they spend too much time on it, and this is bad for their study8．work. People are trying to change that.A new app(应用程序) named Forest9．(introduce) this month. It lets users plant a seed (种子) that grows into a tree overthe next 30 minutes. During the half hour, users cannot use their phones, or the tree will die.A restaurant in Los Angeles, US, gives people a 5 % discount (折扣)if they don’t check their phones during a meal. Owner Mark Gold said that he hopes it gives people a way to enjoy their meal and really talk with friends andfamily10．person.Ⅳ. 阅读理解A13、Molly Boylan is one of the most successful business women in Canada after setting up her cosmetic(化妆品)company Blazes in 1992. Though she is very successful，she says that she finds it harder every year to balance her business with her family life. She sometimes feels that her two childrenknow more about their baby-sitter than they do about her.Molly employs(雇佣)around eighty people in her factory and warehouse，and ten others in her two new fashion stores，but her newest employee is the most important one for her. After years of worrying about her business more than her family，she has decided to make Sally Pamonte new general manager in her company. Molly willstill________decision-making，and she’s going to stay in touch with the people who work for her，but Sally is going to look after day- to-day running of the business so that Molly can spend more time with kids.The new arrangement is going to start on Monday，and both of them are already excited about it. Sally says，“I’m very nervous，actually，but I’m sure Molly will help me a lot in the early days，even though I hope she feels she can trust me not to make too many mistakes.”Molly，on the other hand，seems quite relaxed about the whole thing. “I know that Sally’s going to be a very nice manager.” she says，“She’s only been here a couple of days and she’s already shown me how to work out a few problems we were having. The best thing though is that I feel a hundred times happier than I’ve been in years. I mean，I honestly can’t remember the last time I felt as rela xed as this，and my kids are really excited about my being at home more. To be honest，I wish I had made this decision years ago.”1．The passage is mainly about ____________.A．Molly and her childrenB．Molly finding a new managerC．the baby-sitter and the kidsD．Molly making a chance about her business.2．The underlined phase “be involved in” in the passage probably means __________.A．be interested in B．take part inC．be nervous about D．learn about3．Sally seems to be a good manager because _____________.A．she has set up a new BlazesB．she keeps in close touch with the workersC．she has been able to solve a few problemsD．she has been working for the company since 19924．According to this passage，Molly ____________________.A．will not run her business any moreB．seems satisfied with the new arrangementC．was not pleased with the baby-sitterD．was successful both in her business and her family.5．The best thing for Molly now is that________________.A．she has more than eighty people working for herB．her kids know more about the baby-sitterC．she can have more time to be with her kids.D．she has got a new general manager in her company.B14、All living things need energy to live and grow. This energy comes first from the sun. Plants use water and sunlight to make their own food. Animals can not make their own food, and they eat plants. Other animals then eat the plant eaters.A food chain shows what eats what. It might show that zebras eat grass and then lions eat zebras.Lions also eat other animals. Zebras eat other kinds of plants. So it takes more than one food chain to show how lions and zebras get their energy.A food web shows how food chains work together. From it we can see how energy moves from plants to animals.Plants and animals that live in hot, dry deserts depend on water as well as food. Creosote bushes have small leaves that hold water. Their seeds provide food and water for kangaroo rats. Kangaroo rats don’t need to drink water. They get all the water they need from the plants they eat. Kangaroo rats keep cool by coming out only at night to look for food. Ringtail cats also come out only at night. Ringtail cats hunt and eat kangaroo rats. Coyotes eat both the kangaroo rats and the ringtail cats.Nothing is wasted in a food wed. Vultures eat dead animals. Vultures are scavengers. Scavengers do not hunt and kill other animals to get food. They eat animals that are already dead. When a ringtail cat or a coyote dies, it makes a meal for the vultures. Scavengers do an important job in keeping the environment clean.1．Where does the energy that living things need first come from?A．Animals. B．Plants. C．The sun. D．Plant eaters.2．Why do ringtail cats come out only at night?A．Because they are afraid of coyotes. B．Because they are shy animals.C．Because it is very hot in the daytime. D．Because they can eat kangaroo rats.3．What kind of animal can be placed in the empty box of the picture?A．Kangaroo. B．Vulture. C．Cat. D．Zebra.4．Which of the following is NOT TRUE according to the passage?A．Lions eat different kinds of animals. B．Plants are on the top of the food chain.C．Scavengers can keep the environment clean. D．Some animals get water from the plants they eat.5．What’s the best title of the passage?A．Web of life B．Things that we eatC．Food in the desert D．The place where food is fromC15、Playing video games can be a fun way to spend time with friends. In some schools, teachers use games like Minecraft to encourage teamwork and communication.But for some players, gaming is an unhealthy habit. They stay up late playing games. They do little or no homework. They give up other hobbies and pay little attention to their families and friends. The video-game world seems a friendlier place than the real one.Mental（精神的）health experts（专家）have taken notice. The World Health Organization(WHO) listed “ gaming disorder（电玩失调症）” as a disease（疾病）last year. A person may have the disorder if gaming has done harm to his or her relationships with family and friends. and if it has influenced his or her daily activities.Not all experts agree that over-gaming should be called a disorder. They say people who spend too much time onvideo games may develop other mental health problems. These should be treated first.Others think WHO did the right thing. Clifford Sussman is a doctor who treats gaming addiction (瘾). He says those kids often get angry easily and it makes everything difficult for them to complete, like schoolwork.Sussman advises tracking（跟球）how long you play. He says you should take at least an hour-long break after every hour of play. The brain needs time to recover（恢复）.Young gamers who think they might have a problem should ask an ad（成年人）for help．Sussman suggests you first answer a simple question: “Are you in control, or is the game in control?”1．The writer develops his idea in Paragraph 2 by .A．giving some examples B．using an expert ’s opinionC．describing his personal habits D．introducing the result of a survey2．The underlined word " it " in Paragraph 3 refer s to “”.A．gaming B．a diseaseC．gaming disorder D．a video game3．According to Sussman, kids with gaming addiction .A．have grown in number these yearsB．should be treated as early as possibleC．often have trouble doing lots of thingsD．may have different mental health problems4．By answering Sussman s question, we may knowA．what gaming addiction is B．if we have gaming addictionC．how to fight gaming addiction D．why to fight gaming addictionD16、As a little boy, there was nothing I liked better than Sunday afternoons at my grandfather's farm in western Pennsylvania. Surrounded by miles of winding stonewalls, the house and farm provided endless hours of fun for a city kid like me.I can still remember one afternoon when I was eight years old. Since my first visit to the farm, I'd wanted more than anything to be allowed to climb the stonewalls surrounding the farm. My parents would never agree. The walls were old; some stones were missing, others loose and falling into pieces. Still, my wish to climb across those walls grew so strong that finally, one spring afternoon, I summoned (鼓起) all my courage and entered the living room, where the adults had gathered after Sunday dinner."I, uh, I want to climb the stonewalls," I said hesitantly. Everyone looked up. "Can I climb the stone walls?"Immediately a chorus went up from the women in the room. "Heavens, no!" they cried, "You'll hurt yourself!" I wasn't too disappointed; the response was just as I'd expected. But before I could leave the room, I was stopped by my grandfather's loud voice. "Now hold on just a minute," I heard him say, "Let the boy climb the stone walls. He has to learn to do things for himself.'"Go," he said to me, "and come and see me when you get back. ' For the next two and a half hours I climbed those old walls and had the time of my life. Later I met with my grandfather to tell him about my adventure. I'll never forget what he said. "Fred," he said, smiling widely, "you made this day a special day just by being yourself. Always remember: there's only one person in this whole world like you, and I like you as you are."Many years have passed since then, and today I host the television program Mister Rogers'Neighborhood, seen by millions of children throughout America. There have been changes over the years, but one thing remains the same: my message to children at the end of almost every visit."There's only one person in this whole world like you," the kids can count on hearing my say, "and people can like you as you are."1．Which of the statements is TRUE according to the passage?A．As a city kid, Fred was unwilling to go to his grandfather's farm.B．Fred helped his grandfather build the stonewalls to protect the farm.C．Fred was sure that his parents would agree with his climbing the stonewalls.D．Fred' grandfather encouraged him to do things for himself.2．Why wasn't Fred allowed to climb the stonewalls at first?A．Because he was too young to climb the stonewalls on his own.B．Because his parents were very strict with him.C．Because his family thought it was dangerous to climb the stonewalls.D．Because his grandpa didn't like him going out.3．What can we infer from the passage?A．The TV program Mister Rogers' Neighborhood is popular with children in America.B．Fred's grandpa wanted Fred to be a host of the TV program.C．There's only one person in this whole world that likes Fred as he is.D．When Fred was young, he didn't take his parents' opinions seriously.E17、Singapore is a good place for sightseeing. There are a lot of good hotels with good services. Different furniture and different price of rooms. Here are four hotels you can choose. Read it and decide for yourself.1．（小题1）Holiday Inn Atrium Singapore is ______________. A．near Changi AirportB．across from the island’s famous Singapore RiverC．at 11 Cavenagh RoadD．at 80 Middle Road2．（小题2）_______ is the best of the four hotels.A．Inter Continental SingaporeB．Holiday Inn Atrium SingaporeC．Holiday Inn Singapore-ParkviewD．Crowne plaza Hotel Changi Airport3．（小题3）The cheapest price for a single room is in __________.A．Inter Continental SingaporeB．Holiday Inn Atrium SingaporeC．Holiday Inn Singapore-ParkviewD．Crowne plaza Hotel Changi Airport4．（小题4）If your parents want to stay in Crowne Plaza Hotel Changi Airport for three nights, they will pay________. A．$270 B．$180 C．$2 D．$905．（小题5）You’ll spend _______ from Holiday Inn Singapore-Parkview to Changi Airport by car.A．25 minutes B．30 minutes C．25 hours D．30 hoursF18、Some parts of Finland is on the North Pole (北极圈）but Finland isn’t always covered with snow. It is actually covered with forests. There are plenty of reindeer in the forest and they are very beautiful. Together with Father Christmas, they are the symbols of Christmas.In summer, kids can enjoy long, long days that never end - the nights never really get dark.The following are some interesting things to do in Helsinki, the capital of Finland.♦Market SquareStart your visit at the open-air market at Market Square on the South Harbor. In summer, you can watch people selling fish and potatoes from their boats, eat a bag of fresh strawberries, or a sandwich from the Old Market Hall and sit out on the stone dock (码头）to watch the boats coming and going.♦Take a boat rideFrom the Market Square, there are four or five possible boat rides. You can take a boat to travel around the islands of Helsinki. Or, you can take a waterbus to Helsinki Zoo.♦SeurasaariSeurasaari is only minutes from the center of Helsin ki. Once you cross the bridge to the island, you’ll find yourself in the 18th and 19th century Finland.1．What is Finland actually covered?A．Ice. B．Grass. C．Water. D．Forests.2．The underlined word “reindeer” probably is .A．a kind of traffic sign B．a kind of animalC．a kind of present D．a place of the country3．The capital of Finland is .A．Helsinki B．SeurasaariC．Reykjavik D．South Harbor4．How can you go to Helsinki Zoo from the Market Square?A．By bus. B．By taxi.C．By waterbus. D．On foot.5．Which of the following is NOT right?A．Seurasaari is near the center of Helsinki.B．There are lots of trees in Finland.C．In summer, days never end in Finland.D．Tourists can sell fish and potatoes from the boats.Ⅴ.书面表达19、同学们，四年的初中生活就要结束了，在我们的成长过程中，既有快乐，也有烦恼。
九年级数学上册期末测试卷(必考题)
九年级数学上册期末测试卷（必考题）班级: 姓名:一、选择题（本大题共10小题, 每题3分, 共30分）1. 估计的值在（）A. 2到3之间B. 3到4之间C. 4到5之间D. 5到6之间2. 已知两个有理数a, b, 如果ab＜0且a+b＞0, 那么（）A. a＞0, b＞0B. a＜0, b＞0C. a、b同号D. a、b异号, 且正数的绝对值较大3．若正多边形的一个外角是, 则该正多边形的内角和为（）A. B. C. D.4．当1<a<2时, 代数式|a－2|＋|1－a|的值是（）A. －1B. 1C. 3D. －35．一个整数815550…0用科学记数法表示为8.1555×1010, 则原数中“0”的个数为（）A. 4B. 6C. 7D. 106. 若顺次连接四边形ABCD各边的中点所得四边形是菱形. 则四边形ABCD一定是（）A. 菱形B. 对角线互相垂直的四边形C. 矩形D. 对角线相等的四边形7．如图是抛物线y=ax2+bx+c（a≠0）的部分图象, 其顶点是（1, n）, 且与x 的一个交点在点（3, 0）和（4, 0）之间, 则下列结论：①a-b+c＞0；②3a+b=0；③b2=4a（c-n）；④一元二次方程ax2+bx+c=n-1有两个不等的实数根．其中正确结论的个数是（）A. 1B. 2C. 3D. 48．如图, 在▱ABCD中, BF平分∠ABC, 交AD于点F, CE平分∠BCD, 交AD于点E, 若AB＝6, EF＝2, 则BC的长为（）A. 8B. 10C. 12D. 149．如图, 函数 y1＝﹣2x 与 y2＝ax+3 的图象相交于点 A（m, 2）, 则关于 x 的不等式﹣2x＞ax+3 的解集是（）A. x＞2B. x＜2C. x＞﹣1D. x＜﹣110．如图, 在下列条件中, 不能证明△ABD≌△ACD的是（）.A. BD=DC, AB=ACB. ∠ADB=∠ADC, BD=DCC. ∠B=∠C, ∠BAD=∠CADD. ∠B=∠C, BD=DC二、填空题（本大题共6小题, 每小题3分, 共18分）1. 9的平方根是__________.2. 因式分解: ____________.3. 若函数y=mx2+2x+1的图象与x轴只有一个公共点, 则常数m的值是_____.4. 如图, 已知△ABC的周长是21, OB, OC分别平分∠ABC和∠ACB, OD⊥BC于D, 且OD＝4, △ABC的面积是__________.5. 如图, 反比例函数y= 的图象经过▱ABCD对角线的交点P, 已知点A, C, D 在坐标轴上, BD⊥DC, ▱ABCD的面积为6, 则k=_________.6. 如图, 将正方形OEFG放在平面直角坐标系中, O是坐标原点, 点E的坐标为（2, 3）, 则点F的坐标为__________.三、解答题（本大题共6小题, 共72分）1. 解方程：2. 已知关于x的方程x2﹣（2k+1）x+k2+1＝0.（1）若方程有两个不相等的实数根, 求k的取值范围；（2）若方程的两根恰好是一个矩形两邻边的长, 且k＝2, 求该矩形的对角线L 的长．3. 已知: 如图, 平行四边形ABCD, 对角线AC与BD相交于点E, 点G为AD的中点, 连接CG, CG的延长线交BA的延长线于点F, 连接FD.（1）求证: AB=AF；（2）若AG=AB, ∠BCD=120°, 判断四边形ACDF的形状, 并证明你的结论．4. 如图, ▱ABCD的对角线AC, BD相交于点O. E, F是AC上的两点, 并且AE=CF, 连接DE, BF.（1）求证: △DOE≌△BOF；（2）若BD=EF, 连接DE, BF．判断四边形EBFD的形状, 并说明理由．5. 某中学开展主题为“垃圾分类知多少”的调查活动,调查问卷设置了“非常了解”、“比较了非常了解比较了解基本了解不太了解解”、“基本了解”、“不太了解”四个等级, 要求每名学生选且只能选其中一个等级.随机抽取了120名（1）求x的值；（2）若该校有学生1800人, 请根据抽样调查结果估算该校“非常了解”和“比较了解”垃圾分类知识的学生共有多少人？6. 水果店张阿姨以每斤2元的价格购进某种水果若干斤, 然后以每斤4元的价格出售, 每天可售出100斤, 通过调查发现, 这种水果每斤的售价每降低0.1元, 每天可多售出20斤, 为保证每天至少售出260斤, 张阿姨决定降价销售. （1）若将这种水果每斤的售价降低x元, 则每天的销售量是斤（用含x的代数式表示）；（2）销售这种水果要想每天盈利300元, 张阿姨需将每斤的售价降低多少元？参考答案一、选择题（本大题共10小题, 每题3分, 共30分）1、B2、D3、C4、B5、B6、D7、C8、B9、D10、D二、填空题（本大题共6小题, 每小题3分, 共18分）1、±32、(2)(2)a a a +-3.0或14、425、-36.（﹣1, 5）三、解答题（本大题共6小题, 共72分）1、13x = 2.（1）k ＞ ；（2） .3.（1）略；（2）结论: 四边形ACDF 是矩形. 理由略.4、（2）略；（2）四边形EBFD 是矩形. 理由略.5.（1）6 （2）1440人6、（1）100+200x ；（2）1.。
2023-2024学年河南省信阳市第九中学英语九上期末综合测试试题含解析
2023-2024学年河南省信阳市第九中学英语九上期末综合测试试题考生请注意：1．答题前请将考场、试室号、座位号、考生号、姓名写在试卷密封线内，不得在试卷上作任何标记。
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Ⅰ. 单项选择1、Mrs. Smith explained the problem clearly _______ all of us could understand her.A．until B．although C．so that D．as soon as2、—It’s going to rain tonight. I’m a little worried about Adam. He’s still out.— Why not ______ him a call?A．give B．to give C．giving D．gave3、What were you doing when the traffic accident _____________.A．happened B．is happening C．has happened D．was happened4、Hurry up, __________ we’ll have to wait another two hours for the next train.A．and B．but C．or D．so5、---OMG! How could this happen?---What?---The strawberries ________ for at least a week. They still look so fresh!A．have bought B．have been bought C．have kept D．have been kept6、I will try to do what I can do, but I can’t ________ anything.A．promise B．plan C．prepare D．protect7、—A latest magazine, please.—Only one left. Would you like to have _______?A．it B．one C．this D．that8、Nowadays we always use some social medias like Wechat to keep in ______ contact with our friends and relatives. We all believe that the technology is _______ connected with our daily life.A．closely; close B．close; closely C．closely; closely D．close; close9、There’ll be a________ meeting next week, and my parents will__________ come for it.A．parent’; all B．parents’; both C．parent’s; all D．parent’s; both10、I can’t find my notebook anywhere. I’m afraid I ______it.A．lose B．lost C．have lost D．was losingⅡ. 完形填空11、I lived in a poor family with my wonderful mother. She often told me that no matter how poor a person was, he could still afford a dream.My dream was athletics. When I was sixteen, I started playing baseball. I could throw a ninety-mile-per-hour fastballand 1 anything that moved on the field.I was also 2 : my high school coach was John, who believed in me and taught me how to believe in myself. He taught me the difference 3 having a dream and remaining true to that dream. One unusual 4 with Coach John changed my life forever.A friend helped me to find a summer job. This meant a chance for money in my pocket for a new bike, new clothes and the 5 of saving for a house for my mother. Then I realized I would have to 6 up summer baseball and that meant I would have to tell John I wouldn't be playing.When I told John, he was 7 as I expected him to be. "You have your whole life to work," he said. "You don't have too many playing days in your life. You can't afford to waste them." I stood before him with my head 8 , trying to think of the 9 that would explain to him why my dream of buying my mom a house and having money in my pocket was worth facing his disappointment in me."How much are you going to make at this job, son?" he asked. "3.5 dollars an hour," I replied."Well," he asked, "Is $ 3.5 an hour the price of a dream?"That simple question made me understand the difference between wanting something right now and having a goal. I decided myself to play sports that summer and within the year I was taken on by the Pittsburgh Pirates to play baseball, and was 10 a $ 20 000 agreement. Two years later, I bought my mother the house of my dream!1．A．kick B．hit C．pass D．play2．A．right B．shy C．lucky D．comfortable3．A．between B．to C．about D．in4．A．accident B．interview C．problem D．experience5．A．idea B．start C．view D．purpose6．A．put B．take C．pick D．give7．A．sad B．happy C．frightened D．helpful8．A．up B．off C．on D．down9．A．answers B．excuses C．words D．ways10．A．got B．paid C．offered D．presentedⅢ. 语法填空12、Chinese New Year begins in late January1．early February. It is one of the2．(great) festivals in China.Many things are done to get ready3．this festival. The house is cleaned in the days before the holiday. No sweeping is done on the holiday because people worry about that good luck will be cleaned away. Best 4．(wish)are written on red paper and hung around the house.One the5．(one) day of Chinese New Year, children are given red envelopes. Food is 6．important part of theholiday season. Special foods are7．(eat)on certain days. Different foods have different 8．(mean) behind them. For example, fish is said to mean success.Chinese New Year is9．(certain) regarded as a time to be with one's family. Many visits are done during the 15 days. Many traditions are to honor family members who10．(die) in the past.What an interesting festival it is!Ⅳ. 阅读理解A13、During my second year of nursing school, our teacher gave us an exam. I was a hardworking student and I did well in all the subjects. I finished the questions successfully until I read the last one: “What i s the first name of the woman who cleans the school?”Of course this was a joke. I saw the cleaning woman every day. She is short and about 60 years old. She has dark hair. But how would I know her name? I had never talked with her before. In fact, I’d nev er even thought about talking to her. I stared at my paper and started to feel rather guilty. Finally, I handed in my paper, leaving the last question blank. Before the class ended, one student asked if the last question would count toward our grade.“Certainly,” the teacher said. “In your life, you will meet many people. All are important. They deserve(值得) your attention and care, even if all you do is smile and say hello.”I’ve never forgotten that lesson. Everyone deserves my attention and I should get t o know all of the people who work and live around me. That was, perhaps, the most important lesson of my life. I also learned the cleaning woman’s name was Dorothy.1．（小题1）At the nursing school, the writer .A．know everyone’s name around herB．did well in all subjectsC．didn’t like to have an exam2．（小题2）The writer wrote to the last question.A．“Dorothy” B．“blank” C．nothing3．（小题3）From the teacher’s words, we can know that.A．only one student didn’t know the answerB．the last question was part of the examC．the students needn’t answer the last question4．（小题4）The writer thought that .A．the exam gave her a lessonB．the teacher was jokingC．the clean lady was important.5．（小题5）The teacher wanted the students to know that they should through the last question.A．pay attention to everyone around them.B．be friendly to the cleaning ladyC．try to make as many friends as they can in their life.B14、CWhen cold winter days seem gloomy (灰暗的), nothing is better than a nice hot pot meal to warm and cheer you up.Hot pot has a long history. It is the most popular type of food in China, according to a survey by the consumer review website . There are about 350,000 hot pot restaurants around the country, the largest number of any type of restaurant.While enjoying a hot pot meal, people sit around a table and eat from a steaming pot. They put meat, seafood, vegetables, tofu and bean noodles in the soup to boil. Meat, especially mutton, is often cut as thin as paper, so it should not be cooked too long. Otherwise, it will lose its tenderness (鲜嫩).There is also a range of soup types to choose from: spicy, mushroom and tomato. Usually a hot pot has two parts inside. One side is spicy, while the other side is not so spicy. So everyone can enjoy eating it how they like.You don’t have to master great cooking skills to enjoy hot pot either. When the food is ready, take it out and put it in different sauces to give it a special flavor. Some also drink the soup from the pot.Enjoying hot pot is about more than just eating. While the pot cooks people talk and drink. Unlike some meals, it creates an atmosphere (气氛) where everyone can just relax. No wonder hot pot restaurants have become a favorite reunion spot for friends and family in China.1．Hot pot .A．has a long history B．is popular in part of ChinaC．can make you cool D．is liked by women2．The main idea of the third paragraph is about .A．how to enjoy hot pot B．where to eat hot potC．when to enjoy hot pot D．who to cook hot pot3．Which of the following about hot pot is NOT true?A．Different food can be boiled in the pot.B．It’s better to cook mutton for a long time.C．There are different soup types for hot pot.D．A hot pot meal doesn’t need great cooking skills.4．People think hot pot in China .A．is just a kind of food B．is similar to other mealsC．creates a chance to relax D．has taken the place of other mealsC15、1．How many days will the show last?A．11 days B．10 days C．9 days D．8 days2．If the show begins at 10 am, it will probably finish at _____.A．2 pm B．7 pm C．11:30 am D．11:45 am3．A couple and their two children will spend _____ if they watch the show at 2 pm. A．$140 B．$120 C．$100 D．$854．What will happen to a latecomer?A．He or she can still watch the whole show.B．He or she can only enter during a break.C．He or she won’t have a proper break.D．He or she will fail to enter the theatre.5．_____ will not be allowed in.A．TeenagersB．Old people over 60C．Families with three childrenD．Children under 3D16、Steve Jobs, who was as famous as Bill Gates in the world, was one of the fathers of the personal computing time and the founder of the computer company , “Apple”. He was also one of the greatest giants of the informatio n age. The following are some of his greatest achievements.Apple IIJobs and Steve Wozniakfounded Apple Computers Inc. in 1976. A year Later the Apple II was invented. This production(产品) was the world’s first mass-market personal computer.The iMacUn der Jobs’ leadership. Appleintroduce the all-in-one iMac computer in 1998. The iMac became the first machine, which offered only a CD-ROM slot.The iPadBy 2010, Steve Jobs was confidentthe world was ready to have a tablet computer that would be great for watching movies and playing games. The touch-sensitive iPad is a great success.IPhone 4sIPhone 4s came out on October 4, 2011, inAmerica. It looks like iPhone 4. It has a lager and wider screen and a slimmer yet wider case. It has a better camera and faster data transfer speeds.1．When was the Apple II invented?A．In 1976. B．In 1997. C．In 1998 D．In 2010. 2．When did the iMac first come out?A．In 1976. B．In 1998. C．In 2010. D．In 2011. 3．Which one was the oldest?A．The Apple II. B．The iMac. C．The iPad. D．The iPhone 4s. 4．From the passage, we can know that the iPad _______.A．has a better camera B．is the first personal computer C．has a CD-ROM slot D．is great for watching movies 5．According to the passage, which of the following is True?A．iPhone 4s’ screen is the same size as iPhone 4.B．iPhone 4s has a larger and slimmer case than iPhone 4.C．iPhone 4s uses less time to transfer data than iPhone 4.D．iPhone 4s with an improved camera is cheaper than iPhone 4.E17、Manners are very important for our daily life. There are many different customs and habits among different countries. We must find out and follow their customs so that they will not think us ill-mannered. Here are examples of the things that a person with good education should do.If you visit a Chinese family, you should knock at the door first. When the door opens, you will not move before the host says “Come in, please.” After you enter the room, you would not sit down until the host asks you to take a se at. When a cup of tea is sent to your hand, you should say“Thank you”and receive it with two hands. Before entering a house in Japan, it is good manners to take off your shoes. In European countries, even though shoes sometimes become very dirty, this is not done. In a Malay house, a visitor always leaves a little food to show that he has had enough. In England, a visitor always finishes the food to show that he has enjoyed it. The host will be pleased with that.You have to give your present in public in the Middle East to show it is not a bribe. But it’s good manners to give your present in private in Asia. You mustn’t give knives in Latin America because it suggests that you want to cut off the relationship. Y ou mustn’t give your food to Arabia because it suggests that you think your host isn’t offering you enough to eat .“Come any time” means “I want you to visit me” in India. If you don’t suggest a time at once, the India will think you are refusing the invitation. But if an Englishman says “Come any time”, they will think you are impolite if you start fixing a date.1．People should know different manners in different countries because ________.A．actions speak louder than words B．when in Rome, do as the Romans doC．practice makes perfect D．the early bird catches the worm2．What is good manners in China?A．entering the room without knocking at the door B．leaving a little food before finishing itC．sitting down directly after entering the room D．receiving a cup of tea with two hands3．The under lined word “bribe” mean___________ in Chinese.A．贿赂B．贪污C．礼物D．珍宝4．Which is TRUE according to the passage?A．Chinese people often give presents in public .B．Latin American people often send others knives .C．We can send some food to Arabian people.D．An Englishman says “Come any time” to show he’s polite.F18、If you hear the sound of a handset beeping(手机响) in a bag or pocket, you could be forgiven for thinking that someone has received a text message. But nowadays there are so many different ways of messaging someone that it could spell the death of the traditional text as we know it.Text messaging, or texting, is the art of sending a short, electronic message between two mobile phones or tablets(平板电脑). Users pay a certain amount to send messages via(通过) SMS—short message service. But in the last few years, messaging in this way has been on the decline(下降).The rise of smartphones and tablets has seen an increase in the use of instant messaging apps(即时通信应用程序) , which take the place of traditional texts. Using wireless Internet connections, people can send limitless numbers of IMs to their friends for very little cost. Unlike traditional mobile texts, the user usually only has to pay to download the app once, after which each message they send is free.Web developers soon________Instant messaging apps have become popular all over the world. WhatsApp in America and Europe, WeChat in China and Kakao Talk in South Korea are but a few which have attracted hundreds of millions of people, who use the apps to chat to their friends in real time. These apps allow people to send picture messages for free—something which previously was quite costly.Research company Informa said that almost 19 billion messages were sent per day using chat apps in 2012, compared with 17. 6 billion SMS texts. And it expects the chat app market to grow t0 50 billion per day by 2014. So does this really mean the end for communication by text?Pamela Clark—Dickson from Informa doesn't think so. She says that there are a large number of people who use normal mobile phones, particularly in developing countries, who prefer the SMS messaging tool. There is an awfully big base of mobile phone users who are still going to find that SMS is the best messaging experience for them for a while.根据材料内容选择最佳答案，并将其标号填人题前括号内。
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期末测试题一、语言知识及其运用（每小题 2 分,共10 分）1. 下列字形和加点字注音全部正确的一项是（）A. 宽宥.（y b遁词彬.彬有礼（b ［不攻自破B. 嗤•笑（ch停滞伛偻.提携（n。
轻而易举C冠.冕（gu d愧赧自吹自擂.（I神色张惶D.濡.养（r i旁鹜浩浩汤.汤（t a n走投无路2. 下列句子有语病的一项是（）A. 据了解，我省汉简发现早、数量多、研究历史长、在海内外影响大。
B. 第二届中国汉字听写大会”甘肃选拔赛经过三天的激烈角逐，兰州代表队、陇南代表队，张掖代表队分别获得团体组前三名。
C. 随着Windows XP的退场，对于操作系统行业及安全行业来说，无疑是一件大事或一次机会。
D. 2014年索契冬季奥运会暨第22届冬季奥林匹克运动会，于2月7日至23 日在俄罗斯联邦索契市举办。
3. 下列句子没有语病的一项是（）A. 范进抱着鸡，手里插个草标，一步一踱的，东张西望，在那里寻人买。
B. 赣州,正以从容有序、昂扬向上、充满信心，迎接争创全国文明城市的国家检查。
C. 除了厚厚的皮毛不一样，北极熊的体积也高于棕熊，两者的牙齿结构也不同。
D. 闰土早晨便到了，水生没有同来，却只带着一个大约五岁左右的女儿管船4. 下列句子组成语段顺序排列正确的一项是（）①所以,酸味极强的柠檬实际上却是一种典型的“碱性食品”。
②其中的二氧化碳是酸性的, 但它通过呼吸作用被排出体外,实际上并不会明显增加人体的酸性。
③同时,柠檬等水果富含钾、镁等金属元素,这些元素属于“成碱元素”。
它们经人体代谢后,可以让身体偏向碱性。
④柠檬酸在人体内可以分解成二氧化碳和水。
⑤柠檬等水果有非常强的酸味,它们的酸味来自柠檬酸。
A. ④⑤②③①B.⑤④②③①C.⑤④③①②D.④⑤①②③5. 下列句子没有使用修辞手法的一项是（）A. 真善美的活人是我们的神,是我们的石像,是我们的爱人。
B. 潮汛要来的时候,就有许多跳鱼儿只是跳，都有青蛙似的两个脚……C. 乡愁是一湾浅浅的海峡，我在这头,大陆在那头。
D. 也正是在夜幕下的大水上，鸭们才忽然觉得自己已成了无家的漂游者了。
二、xx阅读与积累（24分）（一）阅读下面这首词,完成第6~7题。
（每小题 2 分,共 4 分）xx鹿虔扆【注】金锁重门荒苑静,绮窗愁对秋空。
翠华一去寂无踪。
玉楼歌吹,声断已随风。
烟月不知人事改,夜阑还照深宫。
藕花相向野塘中,暗伤亡国,清露泣香红。
【注】鹿虔扆（y 丫五代词人，生卒年不祥。
曾事后蜀孟昶，有大志,后蜀亡，不再6. 下列对词的内容理解不正确的一项是（）A. “金锁重门荒苑静,绮窗愁对秋空”写铁锁封闭着重门,苑中静寂无声,词人在苑中对着天空发呆。
B.玉楼歌吹，声断已随风”是说往日的歌吹之声早已消散，表达词人对历史变迁的感慨。
C. “烟月不知人事改,夜阑还照深宫”以月的“不知”营造悲伤凄凉的氛围。
D. 词人以重门、绮窗、翠华、玉楼、歌吹、深宫”等字样表现当年的繁华。
7. 下列对词的赏析不正确的一项是（）A. “烟月”两句与“商女不知亡国恨”有异曲同工之妙。
B. “绮窗愁对秋空”运用拟人的修饰手法,表现苑中的荒凉。
C. 作品中藕花”为整个画面添加了明丽的色彩，表现出词人积极向上的心态。
D. 一切景语皆情语，词人用明笔的渲染，暗笔的反衬，双管齐下,使景物中折射出词人的黍离之悲,饱含今昔之慨,富于历史的纵深感。
（二）阅读下面文言短文,完成第8~11题。
（12 分）xx 请官太祖①时，郭进②为西山巡检③，有告其阴通河东刘继元④，将有异志者，太祖大怒,以其诬害忠臣,命缚其人予进,使自处置。
进得而不杀,谓曰: “尔能为我取继元一城一寨,不止赎尔死,当请尔一官。
”岁余,其人诱其一城来降。
进具其事送之于朝,请赏以官。
太祖曰: “尔诬害我忠良,此才可赎死尔,赏不可得也! ”命以其人还进⑤ 。
进复请曰: “使臣失信,则不能用人矣。
”太祖于是赏以一官。
（节选自xx《xx》）【注】① 太祖:指宋太祖。
② 郭进:宋初守卫北疆的名将。
③ 巡检:官名。
④ 刘继元:北汉主刘钧的养子,据有当时河东一带,改元“广运”。
⑤ 命以其人还进: 下令将这个人还给郭进。
8. 下列句子朗读节奏划分不正确的一项是()(2 分)A.xx为/xx巡检B.xx/诬害我忠良C.赏/不可得也D.xx/于是赏以一官9•解释文中加点的词。
(3分)(1) 予()(2)具()(3)复()10. 翻译文中画线句子。
(4 分)(1)岁余,其人诱其一城来降。
______ (2)使臣失信,则不能用人矣。
11. 请用自己的话谈谈你对郭进的评价。
(3 分)_________ (三)古诗文积累。
(8 分)12. 填补下列句子的空缺处。
(每空1 分)(1) _____________________ 在, 乎山水之间也。
(2) _____________________ 湖, 心亭一点,与余舟一芥。
(3) 沙鸥翔集,锦鳞游泳, _________________ 郁, 郁青青(4) _____________________ 忽, 复乘舟梦日边。
(5) __________________ 何, 似在人间。
(6) ______________________ 夜, 吟应觉月光寒。
（7）今日听君歌一曲, ___________________ 。
_（8）________________ 客, 行悲故乡。
三、现代文阅读（30 分）（一）阅读下面文章,完成第13~17题。
（17 分）神枪手xx①他像根铁钉一样钉在那儿,不,他就是一棵生长在那块小土坡上的树,静静地站立在那密林不起眼的角落。
他其实更像是一只大大的青蛙,趴在小土坡上,一动不动。
从半夜开始,他趴在这儿已经是第十一个小时了。
②十一个小时一动不动, 对于他, 一个优秀的狙击手,狙击手中的神枪手来说, 根本算不了什么。
在他的神枪手生涯里,他曾经在一个水库里待过二十二个小时,最终成功地完成了任务。
在他执行的任务中,只要目标出现,他从来没有失过手,又快又好。
战友们叫他“神枪手”他,只是笑。
③这一次,他的任务也简单。
据最可靠消息,在这两天里,敌军的二号首长会出现在他面前山坡下的小路,前往敌军总部,他的任务,就是当目标出现时立即射杀。
④十一个小时里,他喝了两次水, 是用吸管在右肩的小水袋里慢慢饮用的。
喝水,也是他这十一个小时里最快乐的享受了。
他是绝不能暴露自己的,暴露自己,就意味着自己会随时牺牲。
他在趴下的几分钟里,就完全熟悉了这里的环境。
他的眼睛里看到,左边的山坡上有二十三棵树,第三棵树最粗,可能会派上用场。
而右边只有八棵小树,再就是疯长的野草。
七种野草中有两种是有毒的,不能让它的汁液沾在自己的皮肤上。
地上的蚂蚁有些烦人,它们玩笑似的曾钻进自己的裤裆,极痒的感觉,难受,但也只能忍着。
有三只老鸦在右边第三棵树上歇息,时不时说着亲密的话语。
⑤ 天色这时已经大亮。
这十多个小时里,他的右手食指总是紧紧地吻着扳机,随时准备射出那长着眼睛的子弹,在0.1 秒以内射杀目标。
风速不大,他仍然将枪调整成6点钟的方向,这样对子弹的射出更没有影响。
⑥太阳已经跳出了山。
他看见了不远处的房屋,有炊烟袅袅升起。
他看见下边小路上的小草,小草上有露水,晶莹剔透,像珍珠一般。
小草间点缀着或红或白的小花儿。
⑦有声音,不大。
一个小女孩,不过六七岁,蹦蹦跳跳地从五十米的远处走来, 口中哼着儿歌,他不知道是什么名字的儿歌。
后边,跟着的是她的奶奶,不停地叫唤着,应该是叫唤着让孙女慢些走。
⑧他的右手食指,紧紧地吻着扳机。
⑨他想起了两千公里外的女儿。
他已经三年没有回家了,女儿已经八岁了, 身高肯定超过 1.2 米了。
她肯定也会蹦蹦跳跳,肯定也会唱儿歌,肯定也会唱得很好。
女儿会比他唱得好,比她的妈妈唱得好。
她的妈妈,那个做着小学老师的妻子, 现在应该在教室里教孩子们学习了。
还有,家中的老母亲,她的腿应该好起来了,应该不用拐杖就能走路了吧。
⑩他看到山坡前小路上的小花儿在随风摆动,有淡淡的花香传来。
那个小女孩和奶奶走得远了,只看得见背影了。
11 他将头轻轻地向前伸了伸,想再看一看,那个蹦蹦跳跳的小女孩和奶奶。
12他的身体,却轻轻地歪在了小山坡。
有子弹,一颗长了眼睛的子弹,射入了他的右胳膊。
他感觉,那长了眼睛的子弹,是从那有着淡淡花香的小花那儿飞过来的。
13他的右手食指,仍然紧紧地吻着扳机。
14 他是被战友及时从小山坡边救出来的。
在营地里,医护人员为他取出了右胳膊上的子弹。
他看着那子弹,眼睛狠狠地盯着它。
医生让他休息三天,他当即就向首长请求, 退出狙击手的行列。
跟随了他十二年的那把狙击枪,他轻轻地放在了首长的桌子上。
15 一个月之后,他申请退伍,回到了家乡。
几年后,有战友坐了火车又坐汽车, 远远地跑来看他,在饭桌上亲热地叫他“神枪手”他,居然动了拳头,打了多年的战友。
饭没有吃成,闹了个不欢而散。
16 有人也偷偷地叫他“神枪手”但,是,更多的人就狐疑:他是神枪手吗?他真会开枪吗?他总是不出声。
静下来的时候,他就用左手手指,轻轻地抚摸着右手食指的指肚。
那指肚上,全部是厚厚的茧子。
然后,他会自个儿海喝一顿酒,一斤开外的高度老白干。
17 他最喜欢听女儿唱歌,喜欢送女儿上学。
他已经八岁的女儿一路上蹦蹦跳跳,像只快乐的小百灵。
（选自《小说月刊》2017 年第 2 期,有删改）补全本文的主要故事情节,并说说本文的写作线索是什么。
（3 分）看见小女孩和她的奶奶——退伍回乡写作线索：13. “他”是一位真正的神枪手。
结合文章内容,分析“他”身上所体现的神枪手素质。
（4分）__________________________________________________________________14. 第⑥段的内容能否删掉？为什么？（3分）15. 分析下面两个句子加点部分的表达效果。
（4 分）（1）这十多个小时里,他的右手食指总是紧紧地吻着扳机,随时准备射出那长着眼睛的子弹,在0.1 秒以内射杀目标。
_________ （2）跟随了他十二年的那把狙击枪,他轻轻地放在了首长的桌子上。
16. _______________________________________________________________ 你觉得“他”申请退伍仅仅是因为这次任务失败吗?其深层次原因是什么?（3 分）__________ （二）阅读下面文章,完成第18~21题。
（13 分）一个“熬”字益人生xx常言道: “干活原本无技巧,能忍自然效率高。
人生态度千万种,一个熬字万事销。
”这个“熬”字很传神。
人生马拉松,很多要靠熬。
日出而作,日落而息,生活工作多是重复,熬才能出头;后浪推前浪,人生进进退退,熬住才有作为,对于自己的事情不轻易放弃,不随意离开自己的位置,就在那里一步一步地努力,熬得住,才有柳暗花明。