2014鼓楼一模
2024年南京市鼓楼区中考一模英语试题含答案
2024年南京市鼓楼区中考一模英语试题含答案注意事项: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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将条形码粘贴在答题卡右上角"条形码粘贴处"。
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考试结束后,请将本试卷和答题卡一并交回。
Ⅰ. 单项选择1、—The policeman asked the little girl _______ and sent her home.—What a good man!A.why she was crying B.why was she cryingC.why she is crying D.why is she crying2、--- What smells terrible, Tom?--- Sorry. I’ll my socks and wash them at once.A.take away B.put away C.throw away D.keep away3、In order not to be late for the meeting, let’s _____ early.A.set off B.take off C.turn off D.run off4、—It’s reported tha t the plastic pollution is harming the ocean.— I saw the report in the newspaper at breakfast. It will be worse _________ stronger laws are made.A.since B.after C.until D.unless5、—Shall we sit in the corner or by the window?—. I don’t mind.A.Both B.Neither C.No D.Either6、Life the 1900s was very different from what it is now.A.in B.on C.from D.by7、— Jim is really a nice boy.—I agree with you. He never________ others.A.keeps in touch with B.takes care of C.makes fun of8、—M r Wang’s work goes ______teaching ,and he always thinks of the children first and takes good care of them.—Yes, he was praised as one of the “People Who Moved Yangzhou”A.beyond B.beside C.behind D.between9、―WeChat has made a great difference to people's life.―. We can use it to communicate with others easily.A.Completely B.Possibly C.Probably D.Exactly10、Nowadays most universities have websites which allows us to the information about it .A.look at B.look around C.look through D.look afterⅡ. 完形填空11、Bill was fourteen years old. He thought he was a young man 1 his parents thought he was still a boy. They said, “When you begin to think about 2 others, you will be a young man.”One morning, his parents gave Bill some 3 to buy milk at the store. In front of the store, Bill saw an old man. He looked very sick(生病的). Bill went to him and asked, “Are you all right?”The old man answered, “Yes, but I need 4 to eat.”“Then let's go to the 5 ,” said Bill.6 going into a restaurant, Bill asked the old man, “Have you had your breakfast?”“No, I haven't had any food and I haven't had any money because I 7 it,” answered the old man.Bill said to the waiter(服务员), “My friend wants to have bread and milk.”“I'm giving you too much trouble(麻烦),” said the old man. He 8 what the waiter brought him. “I'm fine now,” he said. “I'll 9 forget your kindness(善良)! You are a very good young man.”Bill was 10 because the old man thought he was a young man.The waiter came, and to their surprise, he said that the food was a gift and it was quite cheap. It was the birthday of his boss(老板), and they were the first customers(顾客) of the day.1.A.and B.but C.or D.so2.A.helping B.painting C.discussing D.joining3.A.paper B.time C.experience D.money4.A.nothing B.everything C.something D.anything5.A.hospital B.bank C.restaurant D.theater6.A.From B.Like C.By D.After7.A.forgot B.accepted C.lost D.invited8.A.ate up B.cut up C.picked up D.put up9.A.still B.never C.even D.often10.A.glad B.upset C.sad D.boredⅢ. 语法填空12、请根据短文内容及首字母提示,填写所缺单词,并将答案填写在答题卡标号为66-75的相应位置上。
2014年南京鼓楼一模数学卷解析
C. 【答案】A 基础知识点:三视图,正方形的展开图,小学奥数相关 难度:中等
D.
二、填空题(本大题共 10 小题,每小题 2 分,共 20 分. 不需要写出解答过程,请把答案直接填写在答题 .. 卷相应位置 上) ..... ⒎ 3 的绝对值等于 . 【答案】3 基础知识点:有理数的绝对值 难度:简单
x 5 ⒈ 下列方程组中,解是 的是 y 1 x y 6 A. x y 4 x y 6 B. x y 6 x y 4 C. x y 6 x y 4 D. x y 4
【答案】C 基础知识点:二元一次方程,可以选择解方程,也可以选择带入数值进选项 难度:简单
700 600 500 400 300 200 100
2000 以下
2000~ 4000
4000~ 6000
6000~ 8000
8000 以上
月工资(元)
(第 21 题) (1)如果 1000 人全部在金融行业抽取,这样的抽样是否合理?请说明理由: (2)根据这样的调查结果,绘制条形统计图; (3)2012 年南京市城镇非私营单位月平均工资为 5034 元,请你结合上述统计的数据,谈一谈用平均数反 映月收入情况是否合理?
1 n CO sin 2 1 1 n sin (CO AO) mn sin 2 2
基础知识点:三角函数应用与计算 难度: (1) (2)中等; (3)难 23.(8 分)如图,把长为 40cm,宽 30cm 的长方形硬纸板,剪掉 2 个小正方形和 2 个小长方形(阴影部分 即剪掉的部分) ,将剩余的部分拆成一个有盖 的长方体盒子,设剪掉的小正方形边长为 x cm.(纸板的厚度 .. 忽略不计) (1)长方体盒子的长、宽、高分别为 (单位:cm) ; 2 (2)若折成的一个长方体盒子表面积是 950cm ,求此时长方体盒子的体积. 【解析】 (1) 30 2 x, 20 x, x (2) S
2024年江苏省南京市鼓楼区中考一模物理试题
2024年江苏省南京市鼓楼区中考一模物理试题一、单选题1.研学活动中,讲解员使用扩音器主要是为了改变声音的()A.响度B.音色C.音调D.音速2.火锅是中国独创的美食之一,下列说法正确的是()A.“冰冻肥牛卷”熔化需要放热B.汤汁沸腾过程中温度持续升高C.锅上方水蒸气液化放热更易烫伤皮肤D.汤汁越烧越少,发生了升华现象3.如图所示,建筑上的玻璃幕墙有时会造成光污染,从光学角度来看与其原理相同的是()A.B.C.D.4.下列有关物理量的估计符合实际的是()A.教室里柜式空调的额定功率约为100W B.中学生正常行走的速度约为1.5m/sC.体育中考使用的跳绳长度约为0.4m D.体育中考使用的实心球的重力约200N 5.关于能源、信息与材料,下列说法正确的是()A.核电站的核反应堆利用核裂变释放核能B.若用超导材料制造电炉,发热效率更高C.5G和4G 通讯信号的电磁波在真空中传播的速度不相等D.化石能源和风能都属于可再生能源6.为解决起雾问题,在护目镜上加一层石墨烯材料,并用锂电池通电,使护目镜温度与体温一致,这利用了石墨烯的哪两种物理属性()A.熔点与沸点B.硬度与弹性C.磁性与延展性D.导电性与透光性7.关于图示情景,说法不正确...的是()A.将两个表面光滑的铅块相互紧压,它们会粘在一起,说明分子间有吸引力B.汽车经过的路面尘土飞扬,说明分子在做永不停息的无规则运动C.电吹风朝上吹乒乓球,乒乓球不会被吹走,说明流体流速越大压强越小D.建筑工人在砌墙时常使用铅垂线,是利用重力的方向竖直向下8.如图所示,说法正确的是()A.甲图中两个小球一定带有异种电荷B.乙图的连接方式符合家庭电路安全用电要求C.丙图是发电机的原理图D.丁图是电动机的原理图9.下列关于图中概念车的说法正确的是()A.车突然向前启动时,人由于惯性会向前倾B.运动的车在失去一切外力后,会保持静止或匀速直线运动C.安全带做得比较宽大,是为了增大受力面积来减小压力D.静止在水平地面上的空车所受重力与地面的支持力是一对平衡力10.如图所示电路,导线完好,闭合开关,灯泡不亮且两表均无示数,拆下ad之间的电压表,分别接a、b两点和b、d两点时,电压表均无示数,接c、d两点时电压表有示数,则可判定()A.变阻器断路B.开关断路C.灯泡短路D.电流表断路11.如图所示,规格相同的甲、乙两容器中分别装有3kg和4kg的水,并用不同的加热器加热,不计热损失,得到如图丙所示的水温与加热时间的关系图像,下列说法正确的是()A.甲、乙两容器中水每分钟吸收相同热量B.甲、乙两容器中的加热器的内能是通过热传递的方式来增加的C.加热相同时间,甲、乙两容器中的水升高的温度之比为4:3D.将甲、乙两容器中水从20℃加热至沸腾所需要的时间之比为2:312.如图所示,电源电压恒定,定值电阻R2=20Ω,滑动变阻器R0上标有“50Ω,0.5A”的字样,电流表A的量程为0~0.6A,电压表V的量程为0~15V,当开关S拨到1且滑片P在A端时,电压表的示数为8V;当开关S拨到2且滑片P在中点时,滑动变阻器R0的功率为P0=4W,以下描述正确的是()A.电源电压U为12VB.定值电阻R1的阻值为20ΩC.在确保电路元件安全的前提下,S拨在1时R1的最大功率与最小功率之比为25:4 D.在确保电路元件安全的前提下,S拨在1与拨在2时电路的最大功率之比为3:4二、填空题13.手机芯片可以用5mm工艺制造,nm是物理量的单位,5nm= m。
整理南京市鼓楼区中考化学一模试卷及答案
20 年 月 日A4打印 / 可编辑南京市鼓楼区中考化学一模试卷及答案化学模拟试题一可能用到的相对原子质量:H-1 C-12 N-14 O-16 Na-23 S-32 Mg-24 Fe-56一.选择题(本题包括16小题,每小题3分,共48分,每小题只有一个选项符合题意)1.环境污染问题越来越受到人们的关注,造成环境污染的主要原因大多是由于人类生产活动中过度排放有关物质引起的。
下列环境问题与所对应的物质不相关的是()A.温室效应——CO2 B.光化学污染——NO2C.酸雨——SO2 D.臭氧层破坏——CO2.“纳米材料”是粒子直径为1~ 100nm的材料,纳米碳就是其中的一种,若将纳米碳均匀地分散到蒸馏水中,所形成的物质()①是溶液②是胶体③能产生丁达尔效应④能透过滤纸⑤不能透过滤纸⑥静置后,会析出黑色沉淀A.①④⑥B. ②③④C.②③⑤D. ①③④⑥3.下列说法不正确的是( )①钠、氢气都能在氯气中燃烧生成白色的烟雾②铜丝在氯气中燃烧,生成蓝绿色的氯化铜③液氯就是氯气的水溶液,它能使干燥的有色布条褪色④久置的氯水,因氯气几乎完全挥发掉,剩下的就是水A.只有①B.①和②C.①和④D.①②③④4.下列说法中正确的是( )①1 mol O2的质量是32 g·mol-1②H2的摩尔质量是2 g ③1 mol H+的质量是1 g④对原子而言,摩尔质量就是相对原子质量A.①②③B.③④C.③D.②④5、下列关于物质的检验说法不正确...的是()A.加入氯化钡溶液有白色沉淀生成,再加稀硝酸,沉淀不消失,一定含有SO42-B.观察钾元素焰色反应的操作是:将铂丝放在稀盐酸中洗涤后灼烧至无色,然后再用铂丝蘸取固体氯化钾,置于煤气灯的火焰上进行灼烧,透过蓝色钴玻璃进行观察C.待检液加入NaOH溶液并加热,有能使湿润的红色石蕊试纸变蓝的气体生成,则原溶液中一定含有NH4+D.待检液加入氯化钡溶液有白色沉淀生成, 再加入盐酸沉淀消失且产生无色无味的气体,则待检液中一定含有CO32-6、在容量瓶上,无需标记的是( )A.标线B.温度C.浓度D.容量7.下列有关气体的叙述中,错误的是( )A.不同的气体,若体积不同,则它们所含的分子数肯定不同B.在标准状况下,气体的摩尔体积约为22.4 L·mol-1C.当分子数目相同时,气体体积的大小主要取决于气体分子之间的距离D.气态物质没有固定的形状,且容易被压缩8.下列有关0.2 mol·L-1 BaCl2溶液的说法中,不正确的是( )A.500 mL溶液中Cl-浓度为0.2 mol·L-1B.500 mL溶液中Ba2+浓度为0.2 mol·L-1C.500 mL溶液中Cl-总数为0.2 N AD.500 mL溶液中Ba2+和Cl-总数为0.3N A9.N A代表阿伏加德罗常数,下列说法正确的是( )A.在同温同压时,相同体积的任何气体单质所含的原子数相同B.2 g H2所含的原子数目为N AC.在常温常压下,11.2 L N2所含的原子数为N AD.17 g NH3所含氢原子数目为3N A10、将下列各组物质按单质、氧化物、酸、碱、盐分类顺序排列,其中正确的是( )A、银、干冰、硫酸、烧碱、食盐B、碘酒、冰、盐酸、烧碱、食盐C、氢气、二氧化硫、硝酸、纯碱、硝酸钾D、铜、氧化铜、醋、石灰水、氯化铜11.相同温度和压强下,3体积的X2气体与6体积的Y2气体化合生成6体积的气态化合物A,则生成物A的化学式为( )A.XY2 B.X3Y2 C.X2Y3 D.XY12、.下列变化需要加入适当的氧化剂才能实现的是A.CuO CuB.Fe2+FeC.H2SO4SO2D.HCl Cl213、在右图的锥形瓶中,分别加入足量的下列物质,反应后可能产生喷泉的是( )A.Cu与稀盐酸B.NaHCO3与NaOH溶液C.CaCO3与稀硫酸D.NH4HCO3与稀盐酸14.下列与氮循环无关的生态环境问题是( )A.光化学烟雾B.白色污染C.水体富营养化D.酸雨15、将SO2通入BaCl2溶液至饱和,未见沉淀生成,继续通入另一种气体,仍无沉淀,则通入的气体可能是( )A. CO2B. NH3C. NO2D. Cl216、从海水中提取镁,可按如下步骤进行:①把贝壳制成石灰乳;②在引入的海水中加入石灰乳,沉降、过滤、洗涤沉淀物;③将沉淀物与盐酸反应,结晶过滤、在HCl气体氛围中干燥产物;④将得到的产物熔融电解得到镁。
2014-2015学年江苏省南京市鼓楼区七年级(上)期末数学试卷
2014-2015学年江苏省南京市鼓楼区七年级(上)期末数学试卷一、选择题:本大题共6小题,每小题2分,共12分.在每小题给出的四个选项中,恰有一项是符合题目要求的,请将正确选项前的字母代号填写在答题卷相应位置上.1.(2分)如果水位升高1米记为+1米,那么水位下降2米应记为()A.﹣1米B.+1米C.﹣2米D.+2米2.(2分)下列四个数中,最大的数是()A.(﹣2)2 B.﹣(﹣2)C.|﹣2|D.﹣|﹣2|3.(2分)已知水星的半径约为24400000米,用科学记数法表示为()米.A.0.244×108B.2.44×106C.2.44×107D.24.4×1064.(2分)下列各式中,运算正确的是()A.3a2+2a2=5a4B.a2+a2=a4C.6a﹣5a=1 D.3a2b﹣4ba2=﹣a2b5.(2分)把两块三角板按如图那样拼在一起,那么∠ABC的度数是()A.70°B.75°C.105° D.120°6.(2分)下列图形经过折叠不能围成棱柱的是()A.B.C.D.二、填空题:本大题共10小题,每小题2分,共20分.不需写出解答过程,请把答案直接填写在答题卷相应位置上.7.(2分)如图,将一刻度尺放在数轴上(数轴的单位长度是1cm),刻度尺上“0cm”和“8cm”分别对应数轴上的﹣3和x,那么x的值为.8.(2分)方程﹣2x=4的解是.9.(2分)﹣5和1之间的负整数有.10.(2分)已知∠A=20°36′,则∠A的余角等于.11.(2分)如果两个单项式的和是0,那么这两个单项式可能是.(只写一种)12.(2分)化简:(﹣3x)2÷(﹣3x)=.13.(2分)如果a+b=43,并且2a+3b=96,则b=.14.(2分)如果2x+m=1﹣x,若m≠﹣2,那么x的取值范围是.15.(2分)已知∠ABC=30°,∠ABD=50°,若射线BE、BF分别是∠ABC、∠ABD 的平分线,则∠EBF的度数为.16.(2分)请根据如图所示的信息,说明方程15﹣3.2x=2.2的实际意义.三、解答题:本大题共11小题,共68分。
江苏省南京鼓楼区2025年初三一模考试英语试题含答案
江苏省南京鼓楼区2025年初三一模考试英语试题考生须知: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、________ Mary ________ Jack is listening to the report carefully, because they are both interested in it very much. A.Neither; nor B.Either; or C.Both; and D.Not only; but also2、None of them talked. They finished their meal in_________.A.silence B.order C.place D.public3、Taiji is my favorite sport and I often play it ________ healthy.A.to keep B.keeps C.keeping D.kept4、The fans was very excited because their favorite singer _________ during the evening party.A.put up B.stay up C.showed up D.dressed up5、---Would you like some coffee?---Yes, and please get me some milk. I prefer coffee _______ milk.A.with B.to C.of D.on6、—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 it7、Though their parents work faraway cities to make money, these “stay-home children” can _______ themselves.A.take care of B.take after C.take up D.take off8、-The novel Gulliver’s Travel is very nice.-So it is. Could you tell me__________?A.how long I can borrow itB.if I can keep it for another weekC.when should I return itD.that I can borrow it9、—Must I put on the sweater?—No, you _____. It’s up to you.A.needn’t B.can’t C.shouldn’t D.mustn’t10、﹣Driving less,walking more is good for our health.﹣So I'd rather ________ an hour's walk to work than ________ driving a car.A.take;consider B.take;to considerC.to take;to consider D.taking;consideringⅡ. 完形填空11、You may have a lot of friends and expect your friendship to last a lifetime. However, lifelong friendships are not ________ what everybody can get. Friends sometimes misunderstand each other. For one thing, you may want your _______ to be near at hand, but also you need your independence (独立).For example, when one of your friends comes asking _______ it is all right to spend the evening in your house, sometimes you just say “_____” to him or her because it is not convenient for you. Unfortunately, not all your friends _______ this type of independence. They believe that friends can ask for any favor and the answe r should always be “yes”.Also, misunderstanding sometimes happens when you ask for ______. You expect your friends to help you whenever you need. But the fact is, your friends may not always drop everything to satisfy _______ of your needs. This may make you ______ with them and your friendship could end. The most important thing for you and your friends to do is to always show understanding and respect for each other.Lifelong friendships don’t develop overnights. In a true friendship, both people equally _______ each other. Long-term friendships provide the time to build up a _____ together. As you spend more time with your friend, you are creating special times and stocking up (存储) on memories.1.(小题1)A.always B.sometimes C.never D.ever2.(小题2)A.parents B.friends C.students D.teachers3.(小题3)A.when B.as C.if D.why4.(小题4)A.yes B.no C.good D.OK5.(小题5)A.provide B.understand C.produce D.invent6.(小题6)A.help B.food C.money D.respect7.(小题7)A.every B.each C.both D.either8.(小题8)A.happy B.excited C.cheerful D.angry9.(小题9)A.connect B.compare C.support D.solve10.(小题10)A.story B.family C.character D.historyⅢ. 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 the holiday season. Special foods are7.(eat)on certain days. Different foods have different 8.(mean) behind them. For example, fish is saidto 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、1.Why does Jeff want to run a pizza shop?A.He wants to make money to buy a big house.B.He wants to make money to build a castle.C.He wants to make money to go traveling.D.He wants to make money to have a personal library.2.From the passage, we can know that Jessica___________.A.is the mother of a boy and a girl.B.always tries to do things instead of only thinkingC.thinks it’s hard for people to realize their dreamsD.doesn’t want to live a stressful life3.Whose hobby is reading, according to the passage?A.Gina B.CharlesC.Jessica. D.Sofia.4.Sofia wants to be a _____in the future.A.waiter B.housewife.C.librarian D.doctor5.Which of the following is NOT true according to the passage?A.Jeff will run his pizza shop by himself when he travels.B.Gina thinks her dream is very simple.C.The first place Jeff wants to travel to is Italy.D.Sofia wants to help poor children in Africa.B14、The journey began this morning almost an hour later than I had planned, although I had completed my packing before eight o’clock. I was quite clear about the fact that once I left, my house would stand empty for the first time since the day it was built. It was a strange feeling and perhaps explains why I was leaving so late. I walked around the house many times over, checking to see that all was in order.It is hard to explain my feelings once I did finally set off. As I drove further and further from the house, I found everything looked unfamiliar(不熟悉的) to me. I began to have a feeling of nervousness mixed with excitement. I took a turning and found myself on a road circling the edge of a hill. I could sense the steep(陡峭的) drop to my left. I felt a sense of alarm that I was perhaps not on the correct road at all, but speeding off in the wrong direction. It was only the feeling of a moment, but it caused me to slow down. And even when I was sure I was on the right road, I thought I had to stop the car for a moment to think carefully.I stopped my car and walked out of it. On the one side of the road, small trees grew closely together, while on the other I could now see the countryside far away and a town nearby.I waked a little way along the roadside, when I heard a voice behind me. Until this point I had believed myself quite aloneand I turned in some surprise. Sitting on the large stone was a thin, white-haired man. He called to me again and gave me a sign to join him. For a moment, I took him for a homeless man, but then I saw he was just some local man enjoying the fresh air and summer sunshine.1.Why did the writer set off later than planned?A.Because he checked the house again and again.B.Because he was feeling sad about leaving the house.C.Because packing his backpack took longer than expected.D.Because there was no one to help him get everything ready.2.What caused the writer to start driving more slowly?A.He wanted to look at the beautiful hill carefully.B.He suddenly feared that he might get lost.C.The road became steeper and steeper.D.He realized he was driving too fast.3.What can we infer about the white-haired man?A.He was surprised to see the writer. B.He greatly enjoyed being alone.C.He used to be homeless. D.He was a nature lover.4.What does the passage mainly talk about?A.The writer’s purpose in starting the trip.B.T he writer’s courage in traveling alone.C.The writer’s mixed feelings about his trip.D.The writer’s experience of driving on the hill.C15、Some Useful Pens in our Daily LifeName Pilot BallFrixton①Aihao Remove byFridion ②Ballpen③ShanpiePen④Place oforigin(产地)Japan China China U.S.Key words: ①百乐可擦笔 ②爱好摩易擦 ③圆珠笔 ④三福记号笔 ⑤耐高温1 dollar = 6 yuan根据表格所提供的信息选择最佳答案1.These kind of pens are from countries.A .2B .3C .42.Of all the pens,is the most expensive.A .Shanpie PenB .Aihao Remove byFriclionC .Pilot Ball Frixion3.If I want to buy two pens which are made in China and two pens which are made in Japan, it will cost me yuan at least.A .33B .8C .364.Tim is five years old. He started to write these days. He should choose the pens except .A .Pilot Ball FrixionB .Shanpie PenC .Aihao Remove by Friclion5.Which is TRUE according to the passage?A .Pilot Ball Frixion is made in the US and it is the most expensive of them.B .If I write with a Shanpie Pen, the letters can’t be cleaned.C .Ballpen is 11.7 yuan cheaper than Shanpie Pen.D16、Video game testerWould you like a job that lets you play games? Mitch Ellis works for a video game company. A lot of teenagers want his job because he plays video g ames four hours a day! He’s the one who tests the games to make sure they work. Mitch loves his job because it’s exciting!Dog walkerWould you like a job that lets you work with animals? Do you want one that lets you be outside a lot? Amy Carson walks three dogs, three times a day, five days a week! Dogs are playful and fun, so her job is never boring.Climbing guideMany people want work that lets them travel. Are you active and healthy? Are you someone who likes to hike and climb mountains? Join us! Paulo Costa is a climbing guide. He helps people climb mountains. He travels all over Brazil – and gets paid for it!Book sorterDo you love books? Can you work on Sunday night? The library is looking for someone who can help sort (分类) books and putthembackontheshelves.BeforeThursday,sendane-mailtoJanetChen(*************************)ifyouare interested.1.Who works as a dog walker?A.Amy Carson. B.Mitch Ellis.C.Paulo Costa . D.Janet Chen.2.If you are active and healthy, you’re want ed to be a ______.A.video game tester B.dog walkerC.climbing guide D.book sorter3.The library needs someone to work ______.A.on Thursday nightB.before ThursdayC.before SundayD.on Sunday nightE17、Would you be able to go through a whole day withou t using a light bulb? Most people probably wouldn’t. Today, almost every building uses light bulbs as their main light source. Although we use them daily without much thought, light bulbs were once a costly and the newest technology. A lot of people’s hard work led to the light bulb’s invention, which has impacted our lives greatly.The first light bulbs were glass containers that release light when an electric current heated a part inside called a filament (灯丝). Electric light bulbs are also known as incandescent (白炽) light bulbs. These days, we use energy-saving bulbs that are better for the environment. Nick Holonyak, Jr., an American engineer, invented the first light-emitting diode light (LED) in 1962. An LED light bulb uses one-third the electricity as an incandescent light and lasts far longer.In 1802, a British scientist named Humphry Davy created the first electric light. Then, in 1835, other British scientists created the first constant stream of electric light, although the light didn’t shine very long. In the following decades, scientists experimented with light bulb filaments made of different types of materials, hoping to create a longer stream of electric light. In 1860, Joseph Swan found a material that produced a good light, but it burned out quickly. By this time, none of the light bulbs created were ready to be sold to the public for everyday use. Then, in 1878, Thomas Edison made more progress. He spent a lot of time researching what previous scientists had done. He and his team spent years experimenting with light bulb filaments. They eventually created the first light bulb that could release constant electric light for 1,200 hours. Edison immediately patented (取得专利) his light bulb design so that light bulbs could be produced and sold.Light bulbs were safer and more convenient to use than oil lamps and candles. Increased use of light bulbs resulted in people being able to have a longer work day, so the average work day increased. Light bulbs also led to changes in building designs. Architects created windowless buildings, and lights could be placed in elevators and other new places.1.From Paragraph 1, we can learn that light bulbs were _______ in the past. A.common B.expensive C.hard D.great 2.According to the passage, which one invented the first electric light bulbs? A.Nick Holonyak. B.Humphry Davy. C.Joseph Swan. D.Thomas Edison. 3.According to the passage, what was the main problem in improving light bulbs? A.There was not enough money and engineering support.B.There were no materials that could be used to save power.C.Scientists from different countries couldn’t work together.D.It was hard to find a filament material that shone long.4.According to the passage, which of the following statements in TRUE? A.Light bulbs were as convenient as candles and oil lamps.B.Edison made it possible to sell light bulbs to the public.C.LED can save more power and make people’s work time longer.D.Light bulbs make people stay in windowless rooms on work days.5.Which of the following would be the best title of the passage?A.The invention we depend on.B.The great inventers.C.The history of science and technology.D.What changes building designs?F18、Wanted1.If you don’t know how to use a computer, you can work as.A.a secretary B.a waiter or waitress C.an accountant2.If you want to get a job in the Fairmont Hotel as a secretary, you should be . A.a woman B.younger than 5 years old and a womanC.shorter than 1.65 metres3.If you work as an accountant, how much can you get at most monthly?A.$ 1, 800. B.$ 2,200. C.$ 4, 000.4.If you want to be an accountant, you have to satisfy(满足) the following conditions except .A.an experience of at least 2 yearsB.being a womanC.having an accountant certificate5.Sukan is 24 years old. He can get the job as .A.a computer salesclerk B.a waiter C.an accountantⅤ.书面表达19、书面表达根据要求完成短文写作,请将作文写在答题卡指定的位置上。
菱形性质习题精选(含答案)
菱形性质习题精选(含答案)菱形性质习题精选一.填空题(共26小题)1.(2015?模拟)如图,在菱形ABCD中,点E是AB上的一点,连接DE交AC于点O,连接BO,且∠AED=50°,则∠CBO=度.2.(2015?模拟)如图,在四边形ABCD中,AB=6,∠ABC=90°,E在CD上,连接AE,BE,∠DAE=75°,若四边形ABED 是菱形,则EC的长度为.3.(2015?模拟)如图,菱形ABCD的对角线AC、BD交于点O,其中AC=8,BD=6,以OC、OB为边作矩形OBEC,矩形OBEC 的对角线OE、BC交于点F,再以CF、FE为边作第一个菱形CFEG,菱形CFEG的对角线FG、CE交于点H,如此继续,得到第n个菱形的周长等于.4.(2015?州市校级模拟)己知菱形相邻两角的度数比为1:5,且它的面积为8,则这个菱形的周长为.5.(2015?模拟)如图,在菱形ABCD中,∠A=45°,DE⊥AB,垂足为E,若CD=4cm,则菱形ABCD的面积是.6.(2015?模拟)如图,菱形ABCD中,对角线AC、BD相交于点O,H为AD边中点,菱形ABCD的周长为40,则OH的长等于.7.(2014?)菱形ABCD中,若对角线长AC=8cm,BD=6cm,则边长AB=cm.8.(2014?)菱形的周长为20cm,两个相邻的角的度数之比为1:2,则较长的对角线长度是cm.9.(2014?)如图,菱形ABCD中,AC、BD相交于点O,若∠BCO=55°,则∠ADO=.10.(2014?宿迁)如图,在平面直角坐标系xOy中,若菱形ABCD的顶点A,B的坐标分别为(﹣3,0),(2,0),点D在y 轴上,则点C的坐标是.11.(2014?眉山)如图,菱形ABCD中,E、F分别是BC、CD 的中点,过点E作EG⊥AD 于G,连接GF.若∠A=80°,则∠DGF的度数为.12.(2014春?期末)如图在菱形ABCD中,∠B=∠EAF=60°,∠BAE=20°,则∠CEF的大小为.13.(2014?模拟)如图,在菱形ABCD中,∠B=60°,AB=2,E、F分别是BC、CD的中点,连接AE、EF、AF,则△AEF的周长为.14.(2014?江都市二模)已知菱形ABCD的对角线相交于点O,AC=6cm,BD=8cm,则菱形的高AE为cm.15.(2014?简阳市模拟)如图,边长为a的正方形发生形变后成为边长为a的菱形,如果这个菱形的一组对边之间的距离为h,记=k,我们把k叫做这个菱形的“形变度”.若变形后的菱形有一个角是60°,则形变度k=.16.(2014?淮区一模)如图,在菱形ABCD中,∠ABC=60°,BC=1cm,以DC为边在菱形的外部作正三角形CDE,连接AE,则AE=cm.17.(2014?惠安县二模)如图,菱形ABCD的边长是2cm,∠A=60°,点E、F分别是边AB、CD上的动点,则线段EF的最小值为cm.18.(2013秋?海陵区期末)如图,将菱形纸片ABCD折叠,使点A恰好落在菱形的对称中心O处,折痕为EF.若菱形ABCD的边长为4cm,∠A=120°,则EF=cm.19.(2014春?仙游县校级期末)如图,以菱形AOBC的顶点O 为原点,对角线OC所在直线为x轴建立平面直角坐标系,若OB=,点C的坐标为(4,0),则点A的坐标为.20.(2014春?期末)如图,在菱形ABCD中,AB=13cm,BC 边上的高AH=5cm,那么对角线AC的长为cm.21.(2014春?泰兴市校级期末)如图,菱形ABCD的周长为16cm,BC的垂直平分线EF 经过点A,则对角线BD长为cm.22.(2014春?建湖县期末)如图,在菱形ABCD中,对角线AC、BD相交于点O,点E在BD的延长线上,且△EAC是等边三角形,若AC=8,AB=5,则ED的长等于.23.(2014春?玄武区期末)如图,在菱形ABCD中,BE⊥AD,垂足为E,且E为AD为中点.则∠ADC=°.24.(2014春?定县期末)如图,菱形ABCD中,AB=2,∠BAD=60°,E是AB的中点,P 是对角线AC上的一个动点,当P移动到AC的中点时,则PE+PB的值是.25.(2014春?顺义区期末)如图,菱形ABCD中,∠BAD=120°,CF⊥AD于点E,且BC=CF,连接BF交对角线AC于点M,则∠FMC=度.26.(2014秋?武进区期中)如图,依次连结第一个矩形各边的中点得到第一个菱形,再依次连结所得菱形各边的中点得到第二个矩形,按照此方法继续下去.已知第一个矩形的面积为2,则第2013个菱形的面积为.二.解答题27.(2014?县模拟)如图,四边形ABCD是菱形,CE⊥AB交AB延长线于E,CF⊥AD交AD延长线于F,求证:CE=CF.28.(2014?江都市模拟)如图,在菱形ABCD中,点M是对角线AC上一点,且MC=MD.连接DM并延长,交边BC于点F.(1)求证:∠1=∠2;(2)若DF⊥BC,求证:点F是边BC的中点.29.(2014春?期末)如图,在Rt△ABC中,∠B=90°,BC=5,∠C=30°.点D从点C出发沿CA方向以每秒2个单位长的速度向点A匀速运动,同时点E从点A出发沿AB方向以每秒1个单位长的速度向点B匀速运动,当其中一个点到达终点时,另一个点也随之停止运动.设点D、E运动的时间是t秒(t>0).过点D作DF⊥BC于点F,连接DE、EF.(1)求证:AE=DF;(2)四边形AEFD能够成为菱形吗?如果能,求出相应的t值;如果不能,说明理由.30.(2014春?高淳县校级期末)如图,已知菱形ABCD的边长为2,∠B=60°,点P、Q分别是边BC、CD上的动点(不与端点重合),且BP=CQ.(1)图中除了△ABC与△ADC外,还有哪些三角形全等,请写出来;(2)点P、Q在运动过程中,四边形APCQ的面积是否变化,如果变化,请说明理由;如果不变,请求出面积;(3)当点P在什么位置时,△PCQ的面积最大,并请说明理由.31.(2013秋?东海县月考)如图,在菱形ABCD中,点E是AD 边的中点,点M是AB边上的一个动点(不与点A重合),延长ME 交CD的延长线于点N,连接MD,AN.(1)求证:四边形AMDN是平行四边形.(2)若∠DAB=60°,当点M位于何处时,四边形AMDN是矩形?并说明理由.(请在备用图中画出符合题意的图形)32.(2012秋?鼓楼区校级期末)如图所示,在矩形ABCD中,AB=4cm,BC=8cm、点P从点D出发向点A运动,同时点Q从点B 出发向点C运动,点P、Q的速度都是1cm/s.(1)在运动过程中,四边形AQCP可能是菱形吗?如果可能,那么经过多少秒后,四边形AQCP是菱形?(2)分别求出菱形AQCP的周长、面积.参考答案1.50 2.3 3. 4.16 5.8cm 2 6.5 7.5 8.5 9.35° 10.(5,4) 11.50° 12.20°13.3 14.4.8 15. 16.17. 18.2 19.(2,1)20. 21.4 22.4-3 23.120 24.2 25.105 26.27、证明:四边形ABCD 是菱形CE ⊥AE,CF ⊥AF∠DAB=∠CBB,∠DAB=∠FDC,∴∠CBE=∠FDC又 BC=DC,∴Rt △BEC ≌Rt △DFC,∴CE=CF.28、证明:(1)∵四边形ABCD 是菱形,∴AB ∥CD ,∴∠1=∠ACD ,∵MC=MD ,∴∠ACD=∠2,∴∠1=∠2;(2)连接BD ,∵四边形ABCD 是菱形,∴∠ACB=∠ACD ,BC=CD ,∵∠ACD=∠2,∴∠ACB=∠ACD=∠2,∵DF ⊥BC ,∴3∠2=90°,∴∠2=30°,∴∠BCD=∠ACB+∠ACD=60°,∴△BCD 是等边三角形,∴BF=CF ,即点F 是边BC 的中点.29、(1)在△DFC 中,∠DFC =90°,∠C =30°,DC =2t ,∴DF =t .又∵AE=t ,∴AE=DF(2)能.理由如下:∵AB ⊥BC ,DF ⊥BC ,∴AE ∥DF .又AE =DF ,∴四边形AEFD 为平行四边形.∵AB =21AC BC=35 222AC BC AB =+∴()2223521AC AC =+??? ?? ∴AC=1010 2.AD AC DC t ∴=-=-若使AEFD 为菱形,则需10.102,.3AE AD t t t ==-=即即当103t =时,四边形AEFD 为菱形30、(1)△ABP ≌△ACQ ,△APC ≌△AQD ;(2)∵△ACP ≌△ADQ ,∴S △ACP =S △ADQ ,即S 四边形APCQ =S △ACD =3221??;(3为菱形的高) (3)∵△PAQ 是等边三角形,点P 是BC 的中点时,AP 垂直于BC ,AP 最小,∴当AP ⊥BC 时,三角形APQ 的面积最小,故在四边形APCQ 的面积一定,△APQ 面积最小时,△PCQ 的面积最大. 此时BP=1,31、证明:∵四边形ABCD 是菱形∴∠DNM=∠AMN又∵DE=AE ,∠NDE=∠MAE∴△NDE=△MAE∴ND=AM∴ND ∥AM∴四边形ANDM 是平行四边形(2)当点M 是AB 的中点时,四边形AMDN 是矩形证明:如图所示∵四边形AMDN 是矩形,∠DAB=60o∴∠ADM=30o∴AM=AD 21 ∵AD=AB ∴AM=AB 21 即M 是AB 的中点32、解:(1)经过x 秒后,四边形AQCP 是菱形∴DP=X cm AP=CP=AD-DP=(8-X)cm∵DP 2+CD 2=PC 2∴16+X 2=(8-X) 2 解得x=3即经过3秒后四边形是菱形(2)由(1)得菱形的边长为5∴菱形AQCP的周长=5×4=20(㎝)菱形AQCP的面积=5×4=20(㎝2)。
2024年初中南京鼓楼一模试卷英语
2024年初中南京鼓楼一模试卷英语全文共6篇示例,供读者参考篇1Oh my gosh, guys! Guess what? I just took the first junior high school exam in Nanjing Drum Tower in 2024! It was so intense but also so much fun! Let me tell you all about it.First off, the English section was super exciting. We had to read a passage about space travel and answer questions about it. There were tricky multiple-choice questions and somefill-in-the-blank questions too. But I studied so hard that I think I did pretty well!Then we had a listening section where we had to listen to people talking and answer questions about what they said. It was a bit challenging because some of the speakers talked really fast, but I did my best to keep up.After that, we had a writing section where we had to write a short essay about our favorite holiday. I wrote about my trip to the beach last summer and all the fun things I did there. I hope the examiner likes it!Overall, the exam was tough, but I think I did my best. Now I just have to wait for the results to come out. I can't wait to see how I did!In conclusion, the first junior high school exam in Nanjing Drum Tower in 2024 was a real challenge, but I had a blast taking it. I can't wait to see what the next one will be like!篇2Hey guys, guess what? I just took the first junior high school exam in Nanjing Gulou in 2024! It was super tough, but I survived. Let me tell you all about it.The English test was not easy at all. There were all kinds of questions like multiple choice, fill in the blanks, and even writing a short essay. I had to remember all my grammar rules and vocabulary words to do well.One of the questions was about my favorite hobby. I wrote all about how much I love playing soccer with my friends after school. It was so fun to share what I enjoy doing in my free time.There was also a reading comprehension section where I had to read a passage and answer questions about it. I had to really concentrate and make sure I understood what I was reading.Overall, the exam was challenging, but I feel proud of myself for doing my best. Whether I get a good grade or not, I know that I worked hard and tried my hardest.I can't wait to see how I did on the test and what my score is. But no matter what, I will keep studying and improving my English skills. Who knows, maybe one day I'll be fluent in English and able to travel the world.That's all for now. Wish me luck on my exam results! See you later, guys!篇3Title: My Experience of Taking the 2024 Junior High School Entrance Examination at Gulou, NanjingHey guys, guess what? I just took the first model test for junior high school entrance examination in Nanjing Gulou district! It was so exciting and nerve-wracking at the same time. Let me tell you all about my experience.First of all, the examination room was huge! There were so many students, and the atmosphere was really tense. But I tried to stay calm and focused on the test. The English test was the first one, and I was a bit worried because English is not mystrongest subject. But I remembered to read the questions carefully and answer to the best of my ability.The reading comprehension was not too difficult, and I found the passage about climate change really interesting. I also had to write a short essay about my favorite hobby, which is playing basketball. I talked about how it helps me stay active and make friends. I hope the examiners like my essay!The grammar and vocabulary section was a bit challenging, but I managed to answer most of the questions correctly. I just hope I didn't make too many mistakes! The listening section was the hardest for me because I sometimes have trouble understanding fast English speech. But I tried my best to concentrate and answer the questions.Overall, the exam was tough, but I think I did my best. I hope I can get a good score and enter the junior high school of my choice. I'll keep studying hard and preparing for the real exam. Wish me luck, guys!That's all for now. Thanks for listening to my story. Let's all work hard together and achieve our dreams! Good luck to everyone taking the exam!篇4Hey guys, have you heard about the English first mock exam in Nanjing Gulou Middle School in 2024? It was so tough! But don't worry, I'm here to tell you all about it.The exam had four parts: Listening, Reading, Writing, and Speaking. In the Listening section, we had to listen to a recording and answer questions about it. It was super fast, but I think I did pretty well.Next up was the Reading section. We had to read a passage and answer questions about it. Some of the questions were tricky, but I tried my best to choose the right answers.After that, we had the Writing section. We had to write an essay about our favorite holiday. I wrote about my trip to the beach last summer. It was so much fun!Finally, we had the Speaking section. We had to talk about our daily routine and answer questions from the examiner. I was a little nervous, but I think I did okay.Overall, the exam was challenging, but I think I did my best. I can't wait to see my results and see how I did. I hope I did well!That's all for now, guys. Wish me luck!篇5Hello everyone, today I'm going to talk about the English exam that we had in the first semester of junior high school in 2024 in Nanjing Drum Tower. It was such a big deal, and we were all very nervous about it.The exam had different sections, like listening, reading, writing and speaking. The listening part was really challenging because we had to listen to people speaking in English and answer questions about what they said. Some of us found it hard to understand everything, but we tried our best.The reading section was not too bad, we had to read some passages and answer questions about them. It was a bit tricky because some of the words were new to us, but we managed to figure them out.The writing part was where we had to write a short essay about a topic that we were given. I wrote about my last summer vacation, and how I spent it with my family at the beach. I tried to use all the vocabulary and grammar that we had learned in class, and I think it turned out pretty good.The speaking section was the most fun part of the exam. We had to talk to the teacher in English about a topic that we chose.I decided to talk about my favorite hobby, which is playingbasketball. I was very excited to talk about it, and the teacher seemed to enjoy listening to me.Overall, the English exam was tough, but we all did our best.I hope we all get good grades and make our parents proud. Good luck to everyone!篇6Oh my gosh! Guys, guess what? I just took the first preliminary exam of the year at Nanjing Gulou Middle School in 2024! It was so exciting and a little challenging, but I think I did pretty well. Let me tell you all about it.First of all, the exam was in English, and it had all sorts of questions like reading comprehension, grammar, vocabulary, and writing. The reading part was about a family going on a vacation to the beach, and we had to answer questions about what they did and where they went. It was fun to imagine myself on a beach trip like that!Then, there were some grammar questions about choosing the right verb form or adjective, and I had to really think hard about those. I hope I got them right! The vocabulary section was cool too – we had to match words with their definitions, and I learned some new words like "adventure" and "explore".The last part of the exam was writing, and we had to write a short paragraph about our favorite hobby. I wrote about playing soccer with my friends, and I even added some details about our team winning a game last weekend. I hope the teacher likes my writing!Overall, I think the exam was tough but fair. I feel proud that I worked hard and gave it my best shot. Now, I can't wait to see my results and celebrate with my friends. Yay for English exams –bring on the next one!。
2014鼓楼区中考英语一模试卷(含答案)
九年级(下)期中试卷英语注意事项:1.本试卷分第一卷(选择题)和第二卷(非选择题)两部分,共8页,满分为90分,考试时间90分钟。
2.第一卷的答案涂在答题卡上。
用铅笔把答题卡上对应题目的答案标号涂黑,如需改动,用橡皮擦干净后,再选涂其他答案,不能答在试卷上。
3.第二卷的答案必须写在答题纸上,做在试卷上无效。
第一卷(选择题,共40分)一、单项填空(共15小题;每小题1分,满分15分)从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
1. —It’s hard work to achieve a balance between schoolwork and hobbies.—So it is, but we have to.A. aB. anC. theD. 不填2. Yuejiang Tower is a good place to enjoy the beauty of the Changjiang River becauseof its .A. sizeB. lengthC. heightD. shape3. —What about ordering delicious online?—Great! I had for breakfast this morning.A. something; nothingB. something; somethingC. anything; nothingD. anything; something4. —Could you give me some advice on how to look children?—Why not watch Where are we going, Dad? You can learn a lot from it.A. forB. afterC. atD. through5. —Do you offer any discount on these notebooks?—Sorry, sir. There isn’t a discount you pay more than 100 yuan.A. althoughB. untilC. unlessD. as6. This silk scarf is made in Suzhou. It feels just as as it looks.A. beautifulB. beautifullyC. goodD. well7. —What do you think of Black Coal, Thin Ice?—I t’s a good film., it is not suitable for teenagers.A. InsteadB. AlsoC. ThereforeD. However8. —There great changes in Nanjing in the past few years.—I agree. And some more lines of the underground will be in service this year.A. will beB. areC. wereD. have been9. —Would you like to food and clothes to the old at a home for the elderlywith me?—Of course I would. It’s very meaningful.A. put outB. sell outC. find outD. give out10. —The players in Super Brain can work out different problems in a very short time.—they are! They have super brains indeed.A. How interestingB. How amazingC. What interestingD. What amazing11. —Excuse me, I get back my umbrella, madam?—I’m really sorry. I thought it was mine.A. mustB. shouldC. mayD. need12. —Mr Green, can we do to protect ourselves when facing dangerousattackers in public places?—Always remember “run, hide and fight” when you are in danger.A. whatB. howC. whereD. which13. —Pardon? I didn’t hear you just now.—I asked .A. that Michelle Obama came to China in MarchB. how long did Michelle Obama stay in ChinaC. when did Michelle Obama visit ChengduD. who Michelle Obama came to China with14. —If you go to Beijing, don’t forget to buy some Qingfeng Baozi for me.—. I also want to try the famous baozi.A. OK, I don’tB. OK, I won’tC. Sorry, I don’tD. Sorry, I won’t15. —I’m in a bad mood. You know I failed in this exam.—. A bad grade doesn’t mean you’re not clever. Just study harder.A. Forget itB. Cheer upC. Never mindD. Don’t mention it二、完形填空(共10小题;每小题1分,满分10分)阅读下面短文,从各题所给的A、B、C和D四个选项中,选出可以填入空白apples. When she wentand take it into the house to save for eatingso I wasn’t always On the day that it snowed too early in the season, Lucky went outside and I 20Lucky had 25 all those apples for her bird and squirrel friends to eat. She knew that they wouldn’t have stored enough food to survive such an early winter!16. A. why B. if C. when D. that17. A. hit B. attacked C. beat D. caught18. A. nose B. stomach C. mouth D. ear19. A. happy B. angry C. worried D. excited20. A. heard B. helped C. watched D. followed21. A. gently B. madly C. easily D. sadly22. A. under B. across C. beyond D. above23. A. apples B. trees C. birds D. squirrels24. A. As a result B. As usual C. In fact D. In a word25. A. eaten up B. put up C. dug up D. cleaned up三、阅读理解(共15小题;每小题1分,满分15分)阅读下列材料,从每题所给的四个选项(A 、B 、C 、D )中,选出最佳选项。
2024年江苏省南京市鼓楼区中考一模语文试卷及答案
近代邮政博物馆对外开放时间:周三至周日上午:9:30-11:30下午:13:30-16:30九年级试卷语文注意事项:1.本试卷6页,共120分。
考试时间为120分钟。
2.考生答题全部答在答题卡上,答在本试卷上无效。
一(21分)1.用古诗原句填空。
(6分)古诗中蕴含着许多科学谜题。
“山气日夕佳,(1)▲”,鸟类路线记忆的原理尚未明晰;“潮平两岸阔,(2)▲”藏着一个经典的力学问题;(3)“▲,▲”,诗人王维在塞外看到的究竟是狼烟,还是尘卷风?“停车坐爱枫林晚,(4)▲”,是谁给秋天的草叶染色?“(5)▲,化作春泥更护花”,这是一段怎样奇妙的有机物旅程……古诗词为我们打开了博览万物的另一扇门。
班级开展“游学博物馆”活动,请你参加。
南京是座博物馆。
从“天下文shū”到“世界文学之都”,千年文脉的滋养,让南京城散发出独有的文化魅力。
大大小小的各类博物馆散于街角,藏于巷陌,交融新旧,同构古今,蕴藉风流。
让我们行走在这座“博物馆之城”,聆.听历史沧桑的回响,触摸万物变迁的脉动。
2.根据拼音写汉字,给加点字注音。
(2分)(1)文shū▲(2)聆.听▲3.下列加点词语与文段中“风流”含义相同的一项是(▲)(2分)A.同窗好友如风流..云散,各奔东西。
B.藏于山林乡野,古镇风流..犹存。
C.数风流..人物,还看今朝。
D.苏轼写承天寺月色,不著一字,尽得风流..。
【神游驿路——近代邮政博物馆】(图一)(图二)4.请解说图一邮票中的图案与“邮”的关系。
(3分)▲5.组员想邀请曹老师周末一起参观邮政博物馆,请根据图二给曹老师发一则短信。
(3分)▲2024.042024年南京市鼓楼区中考一模试卷【探秘天象——中国北极阁气象博物馆】走进大门,“中国北极阁气象博物馆”石碑映入眼帘,石碑西侧有座鸾凤风向仪。
小石为这座风向仪写了一段介绍:八百多年前古人就用鸾凤风向仪来测量风向。
鸾凤两足立于圆盘之上,圆盘中心有孔,有轴垂直通过圆盘中心,当风吹来时,鸾与盘可以随风而转,鸾头迎着风向,▲。
2014年北京市17区县初三一模试题分类教材
2014年北京市17区县初三一模试题分类汇编议论文阅读01 [2014东城一模](三)阅读下面文字,完成18—20题。
(共9分)①做任何工作,只要你用心去做,一定能把它做好,如果你不用心去做,那肯定做不好。
②工作不用心,往往导致我们就工作而工作、就做事而做事,呈现出一种机械、重复和被动应付的状态。
在具体工作中,看不出问题,找不出原因,拿不出措施,有可能还会引发新的问题;在完成任务时,容易出现敷衍了事,执行不到位、贯彻不彻底的现象。
而用心去工作,在工作时就会用巧力、想办法,创造性地干,具有主动积极的工作意识;在工作标准上追求的是完美而不是完成,在相关问题的思考和处理上,会及时总结经验、吸取教训,发现不足、找出原因、拿出办法,具有工作的使命感和责任感。
所以说,不用心去工作,工作肯定做不好,甚至会出问题;用心去工作,工作就能做好。
③让我们看一个用心工作的故事。
海尔公司的魏小娥去日本学习整体卫生间的生产技术,在学习中她注意到,日本人试模期废品率一般都在30%~60%,设备调试正常后,废品率为2%。
魏小娥意识到,不是日本的技术员能力不行,而是思想上的桎梏使他们停滞于废品率的最低极限只能降到2%。
而作为一个海尔人,魏小娥的标准是100%。
她拼命地利用在日本的每一分每一秒刻苦学习,3周后,她带着先进的技术知识和赶超日本人的信念回到了海尔。
半年后,日本模具专家宫川先生来海尔公司访问。
他面对着一尘不染的生产现场、操作熟练的员工和100%合格的产品,惊呆了,反过来向“学徒”魏小娥请教相关的生产问题。
“因为我们是用心去工作。
”魏小娥简单的回答又让宫川先生大吃一惊。
④用心去工作,看似简单,其实不简单。
原来,魏小娥从日本学习归国之后,便开始重点抓卫浴分厂的模具质量工作。
魏小娥在实践中把2%放大成100%去用心研究。
不管是一个黑点还是一根头发都不放过。
用心去工作的魏小娥终于做到了产品合格率达到100%。
在工作中,如果我们能够像魏小娥这样去用心,也一定能成为第二个“魏小娥”。
江苏省南京市秦淮区2014年中考一模语文试题 Word版含答案
南京市秦淮区 2014 年中考一模 语文试卷注意事项: 1.本试卷 6 页,共 120 分;考试时间 120 分钟。
2.答案一律填涂或书写在答题卷上。
选择题必须使用 2B 铅笔填涂,非选择题必须使用黑色 墨水笔书写。
一(28 分)1.用课文原句填空。
(10 分) (1)碧玉妆成一树高, (2) ▲ ▲ 。
(贺知章《咏柳》 ) (白居易《钱塘湖春行》 ) (李白《闻王昌龄左迁龙标遥有此寄》 ) (杜甫《望岳》 ) (王湾《次北固山下》 ) (杜牧《泊秦淮》 ) (王维《使至塞上》 ) (《论语·为政》 ) (刘禹锡《陋室铭》 ),谁家新燕啄春泥。
▲ 。
(3)我寄愁心与明月, (4) ▲,一览众山小。
▲ 。
(5)乡书何处达? (6) ▲,夜泊秦淮近酒家。
▲ ▲ ▲ 。
,思而不学则殆。
。
(7)大漠孤烟直, (8)子曰: (9)斯是陋室,(10) 《骆驼祥子》中小福子迫于生计,只好靠卖身来支撑全家,然而她善良、纯洁、无 私,仿若一株“ ▲ ”的莲花。
(用周敦颐《爱莲说》中名句) 轻歌màn( ▲ )舞2.给下列汉字注音或根据拼音写出汉字。
(4分) 静谧 ( ▲ ) 浑身解 ( ▲ )数 烦zào( ▲ ) . . 3.下列句子有语病的一项是( ▲ ) (2分)A.近日,中国读者以各种方式表达自己对诺贝尔文学奖获得者马尔克斯的追念。
B.当影院清场,商店打烊,24小时营业的三联韬奋书店成为读者向往的人间天堂。
C.4月15日,央视纪录频道在北京举办《舌尖II》首映式,揭开了神秘的面纱。
D.截止4月22日,“我要上青奥,我想去南京”系列活动报名参与人数突破157万。
4.莫言通过媒体对马尔克斯的离世做出回应,请按要求填空。
(3 分) 我不能说马尔克斯是当代世界上最伟大的作家, 但自上世纪六十年代至今, 世界上的确 没有一本书像《百年孤独》那样产生广泛而持久的影响。
2013-2014学年九年级数学鼓楼区一模试题(含答案)
C G B
(第 16 题)
AB 根据上述过程,长方形纸片的长宽之比 = BC 明、证明过程或演算步骤) 2 1 17. (6 分)计算: 2 - . x -4 2x-4
▲
.
三、解答题(本大题共 11 小题,共 88 分.请在答题 卡 指定区域 内作答,解答时应写出文字说 .. . ....
5+3x>18, 18. (6 分)解不等式组x x-2 并写出不等式组的整数解. ≤4- . 2 3 19. (8 分)已知:如图,在正方形 ABCD 中,点 E、F 在对角线 BD 上,且 BF=DE. (1)求证:四边形 AECF 是菱形. (2)若 AB=2,BF=1,求四边形 AECF 的面积.
16. 将一张长方形纸片按照图示的方式进行折叠: ①翻折纸片,使 A 与 DC 边的中点 M 重合,折痕为 EF; ②翻折纸片,使 C 落在 ME 上,点 C 的对应点为 H,折痕为 MG; ③翻折纸片,使 B 落在 ME 上,点 B 的对应点恰与 H 重合,折痕为 GE.
D C ① D F M C ② D F H A B A E B A E G B M C ③ D F H A E M
鼓楼区 2013-2014 学年度第二学期调研测试卷
九年级数学(一)
注意事项: 1.本试卷共 8 页.全卷满分 120 分.考试时间为 120 分钟.考生答题全部答在答题卡上,答 在本试卷上无效. 2.请认真核对监考教师在答题卡上所粘贴条形码的姓名、考试证号是否与本人相符合,再将 自己的姓名、准考证号用 0.5 毫米黑色墨水签字笔填写在答题卡及本试卷上. 3.答选择题必须用 2B 铅笔将答题卡上对应的答案标号涂黑.如需改动,请用橡皮擦干净后, 再选涂其他答案.答非选择题必须用 0.5 毫米黑色墨水签字笔写在答题卡上的指定位置, 在其他位置答题一律无效. 4.作图必须用 2B 铅笔作答,并请加黑加粗,描写清楚. 一、选择题(本大题共 6 小题,每小题 2 分,共 12 分.在每小题所给出的四个选项中,恰有 一项是符合题目要求的,请将正确选项前的字母代号填在答题 卡 相应位置 上) .. . .... x=-5, 1.下列方程组中,解是 的是 y=1 x+y=6, x+y=6, x+y=-4, x+y=-4, A. B. C. D. x-y=4. x-y=-6. x-y=-6. x-y=-4. 1 1 2.计算 2×(-9)-18×( - )的结果是 6 2 A.-24 B.-12 C.-9
2014年北京各区高三语文期末一模二模试题分类汇编——微写作
A阅读下面的材料,按要求完成微写作。
(10分)(东城期末)“邯郸驿里逢冬至,抱膝灯前影伴身。
想得家中夜深坐,还应说着远行人。
”这是一首白居易于邯郸驿舍中思家的诗,但诗人没有说自己如何思念家人,而是想象家人如何思念自己。
清代学者浦起龙评价这种诗歌手法说:“心已神驰到彼,诗从对面飞来。
”请借鉴这种手法,写一段表达你自己某一种情感的文字。
要求:①有描写和抒情。
②结构相对完整,语言简明、生动。
③不少于150字。
B阅读下面文字,按要求作文。
(10分)(西城期末)春节,是中华民族的传统节日。
中央电视台春节联欢晚会(简称“央视春晚”)是全中国老百姓乃至全球华人除夕之夜的一道文化大餐。
2014年“央视春晚”目前正在紧锣密鼓地筹备之中。
总导演冯小刚宣布了打造马年“春晚”的八字方针:真诚,温暖,振奋,好玩。
要求:①请针对“真诚”“温暖”“振奋”“好玩”中任意一个词,给冯导写一段话,为正在筹备的这台晚会献计献策并力求其能采纳;②内容积极,建议具体,表达得体;③150字左右。
C(海淀期末)“汉语盘点活动”,意在用一个词语概括过去一年国内或国际发生的变化、人们关注的焦点。
请从“霾、正能量、女汉子、曼德拉、喜大普奔”中,选择一个你认同的“2013年度词语”,并写出理由。
(150字左右)(10分)D阅读下面材料,按要求作文。
(10分)(朝阳期末)请描述老师的某间办公室,写出或“安静”或“热闹”的特点。
要求:有叙述和描写,有一定的评价。
200字左右。
E阅读下面材料,按要求作文。
(石景山期末)一个孩子在客厅里玩篮球打落了花瓶,慌忙用胶水粘合,放回原位。
母亲回家后询问,孩子说野猫跳进来打落了花瓶。
母亲是每天上班前把窗户关好的,但她听了孩子的话只说是自己疏忽没关好窗户。
就寝前,母亲请孩子到书房。
母亲面前放着三块巧克力,她拿出一块递给孩子:“这块奖给你,因为你运用神奇的想象力,杜撰出一只会开窗户的猫,以后你一定可以写出好看的侦探小说。
2014-2015学年南京市鼓楼区八年级语文第二学期期末试卷及答案
南京市鼓楼区2014—2015学年度第二学期期末考试八年级语文试卷2015.6.(分值100分时间120分钟)一、积累与运用(28分)1.用古诗文原句填空。
(10分)(1),直挂云帆济沧海。
(李白《行路难(其一)》)(2)春蚕到死丝方尽,。
(李商隐《无题》)(3)不畏浮云遮望眼,。
(王安石《登飞来峰)》)(4)但愿人长久,。
(苏轼《水调歌头》)(5)人生自古谁无死?。
(文天祥《过零丁洋》)(6)山水之乐,。
(欧阳修《醉翁亭记》)(7),后天下之乐而乐。
(范仲淹《岳阳楼记》)(8)雨,大自然的精灵。
韩愈为“,草色遥看近却无”的春雨所醉(《早春呈张十八员外(其一)》),杜甫为“床头屋漏无干处,”的秋雨所恼(《茅屋为秋风所破歌》),王昌龄为“,平明送客楚山孤”的寒雨所苦(《芙蓉楼送辛渐》)。
2.下列加点字读音全部相同的一项是()(3分)A.岁.月污秽.龙吟凤哕.B.稽.首滑稽.遍稽.群籍C.庇.护媲.美避.疫免灾D.炫.目铁铉.头晕目眩.3.下列词语书写全部正确的一项是()(2分)A.竹蒿——蒌篙彷徨——诚惶诚恐B.籍贯——狼藉质问——不容置疑C.仓皇——沧桑闲遐——冥思暇想D.崎岖——畸形叱咄——相形见拙4.下列句子标点使用有误..的一项是()(2分)A.变化不一的叉形虫,孤独生活的角形虫,纯洁的眼球虫,被人叫做雪白珊瑚的耸起作蘑菇形的菌生虫……布置成一片花地。
B.你难道没有听到石头里也有生命的呐喊吗?你难道没有用心灵听到从那遥远的星系里传来的友好问候吗?C.听过相声“卖布头”或“改行”的,都不免会佩服当年那些叫卖者的本事。
D.可天津卫的小吃太粗太土:熬小鱼刺多,容易卡嗓子;炸麻花梆硬,弄不好硌牙。
班级开展了“家住六朝烟水间”的语文实践活动,请你参加。
【山水南京】5.A组同学抄录了关于金陵美景的一组楹联,对仗有错误..的一项是()(2分)A.鼓震三吴地楼迎四海宾(鼓楼)B .大江拖白练 钟阜起苍烟 (扫叶楼)C .荷花夏送一湖水 柳雾春笼十里堤 (玄武湖)D .虎踞龙蟠中山王气 飞鸢跃鱼少女莫愁(莫愁湖)【民俗南京】B 组同学搜集了关于“南京白局”的一组材料。
江苏省南京市玄武区2014年中考语文一模试题
南京市玄武区2014年中考一模语文试卷(满分120分;时间120分钟)友情提醒:此卷为试题卷,答案写在此卷上无效。
请将答案写在答题卷上。
一(26分)1.用诗文原句填空。
(10分)(1)不知细叶谁裁出,▲。
(贺知章《咏柳》)(2)客路青山外,▲。
(王湾《次北固上下》)(3)渭城朝雨浥轻尘,▲。
(王维《送元二使安西》)(4)▲,闻道龙标过五溪。
(李白《闻王昌龄左迁龙标遥有此寄》)(5)▲,恨别鸟惊心。
(杜甫《春望》)(6)天街小雨润如酥,▲。
(韩愈《早春呈水部张十八员外》)(7)▲,浅草才能没马蹄。
(白居易《钱塘湖春行》)(8)▲,佳木秀而繁阴。
(欧阳修《醉翁亭记》)(9)李商隐的诗句“夕阳无限好”常常会让你想起陶渊明《饮酒》中的夕阳美景:“▲,▲。
”2.先在横线上完成《水浒》第7回的回目名填空(前一空填物,后一空填人物绰号,使上下两句对仗),再用正楷字分行将这个回目名抄写在米字格中。
(4分)3.阅读下面一段话,给加点字注音,根据拼音写汉字(4分)草长莺飞时节,高淳国际慢城金花节开幕.了!华东最美“金花胜地”敞开胸襟,yāo请您一起来过过江南“慢生活”的瘾.——流连花海盛景,慢赏乡村风情,参与帐péng舞会。
开幕.(▲) yāo(▲)请瘾.(▲)帐péng(▲)4.下面一段话中使用错误的一个加点词语是▲,标点使用有错误的是第▲句,有语病的是第▲句(3分)①绿水青山间,栖霞春意浓。
②山脚下,小青瓦、白粉墙、雕花窗,间间村舍修葺一新,错落有致....;山路间,穿绿林、赏花景、叙情谊,条条山路游人如织,络绎不绝;.....山坡上,粉桃花、黄迎春、二月兰,丛丛鲜花纷纷绽放,花容月貌....。
③通过发展生态旅游,让栖霞政府尝到了经济发展的甜头。
④他们因地制宜....,将经济发展与生态保护有机地结合,走出了一条富有特色的《美丽乡村建设》之路。
阅读下面一段文字,完成5、6两题。
最近,一组“水彩绘南京”的画作受到网友热捧。
2014年江苏省南京市鼓楼区物理一模试题
鼓楼区2013~2014年度第二学期九年级调研测试卷z本试卷总分1OO分,考试时间90分钟注意事项:1.试卷共6页。
答案写在答题卡、答题纸上对应题目的答案空格内,答案不要写在试卷上.考试结束后,交回答题纸.2.答卷前将答卷页密封线内项目填写清楚。
一、选择题(本题共12小题,每小题2分,共24分.每小题给出的四个选项中只有一个....选项正确)1. 下列现象能说明分子在不停息运动的是A、微风拂过,炊烟袅袅B、阳春三月,花香袭人C、丰收季节,麦浪起伏D、沙尘暴起,飞沙满天2.如图为歼15飞机首次从“辽宁号”航母上起飞时的照片.起飞时,飞机驾驶员认为自己是静止的,他所选的参照物是A.自己驾驶的歼15飞机B. .辽阔的海面C.“辽宁号”航母D “辽宁号”航母上的工作人员3.如图所示为我国自行研制的“北斗一号系统”示意图,该系统已具有国内全天候导航、定位及通讯服务等功能。
该系统在传递信息过程中主要依靠A.次声波 B.超声波C.电磁波D.光导纤维4.如图所示的四幅图片中,其中一幅所反映的光学原理与其它三幅不同的是5.水被加热烧开后,水面上方有“白气”;在炎热的夏天,冰块的周围也有“白气”。
关于“白气”的形成,下列解释正确的是A.前者主要是由水壶中的水转变成的水蒸气B.前者主要是由空气中水蒸气变成的水C.后者主要是由冰转变成的水D.后者主要是空气中水蒸气变成的水6..如图所示,在探究液体压强特点的过程中,将压强计的探头放在水中,下列做法能够使压强计U 形管两边液面的高度差减小的是A.将探头向上移动一段距离B.将探头向下移动一段距离C.将探头在原位置转动180°D.将探头放在同样深度的食盐水中7.下列关于一名普通中学生的数据,合理的是 A .质量约为500g B .重力约为50N C .密度约为1×103g/cm 3D .体积约为0.05 m 38.如图所示,入射光线与平面镜成40°角,则A .入射角是40°B .反射光线与镜面夹角是50°C .反射光线与入射光线的夹角是100°D .入射角增大5°,反射角增大10°9.在下图中,能正确表示通电螺线管及静止小磁针N 极指向的是10.把一个质量为60g ,体积为40cm 3的小球轻放入盛满水的烧杯中,当物块静止时,下列说法中正确的是A .溢出水的质量为40g ,水对杯底的压强变大B .溢出水的质量为40 g ,水对杯底的压强不变C .溢出水的质量为60 g ,水对杯底的压强变大D .溢出水的质量为60 g ,水对杯底的压强不变11在下图所示的电路中,电源电压保持不变。
南京市2014届高三一模英语卷及答案
南京市2014届高三一模英语卷及答案南京市、盐城市2014届高三年级第一次模拟考试英语试题 2014.01第一部分听力(共两节,满分20分)做题时,先将答案标在试卷上。
录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节 (共5小题;每小题1分,满分5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. Where will the two speakers go?A. Shanghai.B. Hangzhou.C. Hong Kong.2. Where does the conservation most probably take place?A. In a hotel.B. In a store.C. In a railway station.3. What does the man hope to talk about with Mr. Chen?A. The urgent business.B. The complaints.C. The time to contact him.4. What is the woman doing now?A. Bargaining for a necklace.B. Making an advertisement for jewelry.C. Showing a design of a necklace.5. Why did the man go to San Francisco and Los Angeles?A. To visit some friends.B. To study in the USA.C. To visit some universities.第二节 (共15小题;每小题1分,满分15分)听下面5段对话或独白。
作文题目大全
作文题目大全1.阅读下面材料,根据要求作文。
有一只乌鸦打算飞往东方,途中遇到一只鸽子。
双方停在一棵树上休息,鸽子看见乌鸦飞得很辛苦,关心地问:你要飞到哪里去?乌鸦愤愤不平说:其实我不想离开,可是这个地方的居民都嫌我的叫声不好听,所以我想飞到别的地方去。
鸽子好心地告诉乌鸦别白费力气了!如果你不改变你的声音,飞到哪里都不会受到欢迎的。
生活中多与这个类似的情形。
人们面临许多问题时,都在试图改变。
但是,对改变什么以及如何改变又往往仁者见仁,智者见智。
请以"改变"为话题写一篇文章。
要求:所写的内容必须在话题范围之内;文体自选;题目自拟,立意自定,不得抄袭;不少于800字。
2.阅读下面材料,根据要求作文。
有一个小孩子,伸手到一个装满糖果的瓶里,他满满地抓了一把糖果,当想把手收回来时,手却被瓶口卡住了。
他既不愿放弃糖果,也不能把手缩回来,不禁伤心地哭了起来,母亲在一旁对他说:“孩子,你把手中的糖果丢掉一些,让拳头变小一些,不就把手收回来了吗?”生活中,有时候只有放弃才能得到,但很多人却不明白二者的辩证关系,一味地想要获得,不想放弃,结果什么也得不到。
请以“放弃”为话题,写一篇不少于800字的文章,题目自拟,文体不限。
【思路点拨】本题是包含辩证关系的话题,构思时要注意运用辩证的观点进行分析,立意要充满思辩之美。
可参考如下立意:1、要获取必须先放弃。
例如要装进一杯新泉,就得倒掉杯中的陈水。
2、有所放弃才有所选择。
例如选择奋斗就须放弃享受。
3、放弃是另一种选择,放弃的目的是为了选择。
例如放弃各种诱惑是为了获得优秀的学业。
4、善于放弃是智者的选择,它不等于盲目放弃。
生活中有的东西是可以放弃的。
如虚名、小利等,但有些却永远不能放弃,如诚信、尊严、责任……3..根据要求完成作文。
汉语词典中与“失去”有关的词语都带有感伤色彩:失踪、失眠、失恋、失职、失散、失宠??因为从内心来讲,我们渴望拥有,害怕失去。
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x<2000
2000≤x<4000 4000≤x<6000 6000≤x<8000
x≥8000
合计
(1)如果 1000 人全部在金融行业抽取,这样的抽样是否合理?请说明理由; (2)根据这样的调查结果,绘制条形统计图; (3)2012 年南京市城镇非私营单位月平均工资为 5034 元,请你结合上述统计的数据,谈一 谈用平均数反映月收入情况是否合理?
2
▲
(单位:cm) ;
(2)若折成的一个长方体盒子的表面积为 950cm ,求此时长方体盒子的体积.
x x 30cm x
40cm (第 23 题)
24. (8 分)2014 年 2 月,纯电动出租车在南京正式上路运行,下表是普通燃油出租车和纯电
第 5 页 共 14 页
动出租车的运价. 车型 普通燃油型 纯电动型 起步公里数 3 2.5 起步价格 9 元+2 元(燃油附加费) 9元 超出起步公里数后的单价 2.4 元/公里 2.9 元/公里
.
由上面的探究,请用文字语言直接写出 A、B、C、D 四点在同一个圆上的条件: ▲ .
(3)如何过圆上一点,仅用没有刻度的直尺,作出已知直径的垂线? 已知:如图,AB 是⊙O 的直径,点 C 在⊙O 上. 求作:CN⊥AB. 作法:①连接 CA,CB; ⌒上任取异于 B、C 的一点 D,连接 DA,DB; ②在 CB ③DA 与 CB 相交于 E 点,延长 AC、BD,交于 F 点; ④连接 F、E 并延长,交直径 AB 于 M; ⑤连接 D、M 并延长,交⊙O 于 N.连接 CN. 则 CN⊥AB.
-
2
11.已知⊙O1,⊙O2 没有公共点.若⊙O1 的半径为 4,两圆圆心距为 5,则⊙O2 的半径可以 是 ▲ . (写出一个符合条件的值即可)
D C
12.如图,在梯形 ABCD 中,AB∥CD,∠B=90°,连接 AC, ∠DAC=∠BAC.若 BC=4cm,AD=5cm,则梯形 ABCD 的周长为 ▲ cm.
E H K F I
D
G
C
A
B (第 4 题)
k 5.反比例函数 y= 和正比例函数 y=mx 的部分图象如图所示. x k 由此可以得到方程 =mx 的实数根为 x A.x=1 C.x1=1,x2=-1 B.x=2 D.x1=1,x2=-2
第 1 页 共 14 页
y
2 O 1
C x
(第 5 题)
6.如图, QQ 软件里的“礼盒”图标是一个表面印有黑色实线,顶端有图示箭头的正方体. 下列图形中,是该几何体的表面展开图的是
A E D
F C
B
(第 19 题)
第 3 页 共 14 页
20. (8 分)甲、乙、丙三位歌手进入“我是歌手”的冠、亚、季军的决赛,他们通过抽签来 决定演唱顺序. (1)求甲第一位出场的概率; (2)求甲比乙先出场的概率.
21.(8 分)为了解南京市 2012 年市城镇非私营单位员工每月的收入状况,统计局对市城镇 非私营单位随机抽取了 1000 人进行抽样调查.整理样本数据,得到下列图表:
O
A (第 25 题)
B
第 6 页 共 14 页
26. (11 分) 问题提出 平面内不在同一条直线上的三点确定一个圆. 那么平面内的四点(任意三点均不在同一 直线上) ,能否在同一个圆呢? 初步思考 设不在同一条直线上的三点 A、B、C 确定的圆为⊙O. ⑴当 C、D 在线段 AB 的同侧时, 如图①,若点 D 在⊙O 上,此时有∠ACB=∠ADB,理由是 如图②,若点 D 在⊙O 内,此时有∠ACB ▲ ∠ADB; 如图③,若点 D 在⊙O 外,此时有∠ACB ▲ ∠ADB. (填“=” 、 “>”或“<” ) ;
鼓楼区 2013-2014 学年度第二学期调研测试卷
九年级数学(一)
注意事项: 1.本试卷共 8 页.全卷满分 120 分.考试时间为 120 分钟.考生答题全部答在答题卡上,答 在本试卷上无效. 2.请认真核对监考教师在答题卡上所粘贴条形码的姓名、考试证号是否与本人相符合,再将 自己的姓名、准考证号用 0.5 毫米黑色墨水签字笔填写在答题卡及本试卷上. 3.答选择题必须用 2B 铅笔将答题卡上对应的答案标号涂黑.如需改动,请用橡皮擦干净后, 再选涂其他答案.答非选择题必须用 0.5 毫米黑色墨水签字笔写在答题卡上的指定位置, 在其他位置答题一律无效. 4.作图必须用 2B 铅笔作答,并请加黑加粗,描写清楚. 一、选择题(本大题共 6 小题,每小题 2 分,共 12 分.在每小题所给出的四个选项中,恰有 一项是符合题目要求的,请将正确选项前的字母代号填在答题 卡 相应位置 上) .. . .... x=-5, 1.下列方程组中,解是 的是 y=1 x+y=6, x+y=6, x+y=-4, x+y=-4, A. B. C. D. x-y=4. x-y=-6. x-y=-6. x-y=-4. 1 1 2.计算 2×(-9)-18×( - )的结果是 6 2 A.-24 B.-12 C.-9
C G B
(第 16 题)
AB 根据上述过程,长方形纸片的长宽之比 = BC 明、证明过程或演算步骤) 2 1 17. (6 分)计算: 2 - . x -4 2x-4
▲
.
三、解答题(本大题共 11 小题,共 88 分.请在答题 卡 指定区域 内作答,解答时应写出文字说 .. . ....
5+3x>18, 18. (6 分)解不等式组x x-2 并写出不等式组的整数解. ≤4- . 2 3 19. (8 分)已知:如图,在正方形 ABCD 中,点 E、F 在对角线 BD 上,且 BF=DE. (1)求证:四边形 AECF 是菱形. (2)若 AB=2,BF=1,求四边形 AECF 的面积.
第 4 页 共 14 页
22. (8 分) (1)如图①,若 BC=6,AC=4,∠C=60° ,求△ABC 的面积 S△ABC ; (2)如图②,若 BC=a,AC=b,∠C=α,求△ABC 的面积 S△ABC ; (3)如图③,四边形 ABCD,若 AC=m,BD=n,对角线 AC、BD 交于 O 点,它们所成 的锐角为 β.求四边形 ABCD 的面积 S 四边形 ABCD .
市城镇非私营单位 1000 人月收入频数分布表 月工资 x(元) 频数(人) 60 610 180 50 100 1000 人数 700 600 500 400 300 200 100 0 2000 以下 2000 ~ 4000 4000 ~ 6000 (第 21 题) 6000 ~ 8000 8000 以上 月工资 (元) 市城镇非私营单位 1 000 人月收入统计图
设乘客打车的路程为 x 公里,乘坐普通燃油出租车及纯电动出租车所需费用分别为 y1、y2 元. (1)直接写出 y1、y2 关于 x 的函数关系式,并注明对应的 x 的取值范围; (2)在如下的同一个平面直角坐标系中,画出 y1、y2 关于 x 的函数图象; (3)结合图象,求出当乘客打车的路程在什么范围内时,乘坐纯电动出租车更合算.
y(元)
30 25 20 15 10 5 O 1 2 3 4 5 6 7 8 9 x(公里)
(第 24 题)
25.(8 分) 如图,在□ABCD 中,过 A、 B、 D 三点的⊙O 交 BC 于点 E,连接 DE,∠CDE=∠DAE. D (1)判断四边形 ABED 的形状,并说明理由; C (2)判断直线 DC 与⊙O 的位置关系,并说明理由; (3)若 AB=3,AE=6,求 CE 的长. E
A C
O
B
图④
请按上述作法在图④中作图,并说明 CN⊥AB 的理由. (提示:可以利用(2)中的结论)
第 7 页 共 14 页
27. (9 分) 【课本节选】 k 反比例函数 y= (k 为常数,k≠0)的图象是双曲线.当 k>0 时, 双曲线两个分支分别在 x 一、三象限,在每一个象限内,y 随 x 的增大而减小(简称增减性) ;反比例函数的图象关于 原点对称(简称对称性) . 这些我们熟悉的性质,可以通过说理得到吗? 【尝试说理】 k 我们首先对反比例函数 y= (k>0)的增减性来进行说理. x 如图,当 x>0 时. k k 在函数图象上任意取两点 A、B,设 A(x1, ),B(x2, ), x1 x2 且 0<x1< x2. k k 下面只需要比较 和 的大小. x1 x2 k k k (x1-x2) — = . x2 x1 x1 x2 ∵0<x1< x2,∴x1-x2<0,x1 x2>0,且 k>0. ∴ k (x1-x2) k k <0.即 < . x1 x2 x2 x1 错误!A k x2
A (第 12 题) B
13.如图,在□ABCD 中,∠A=70°,将□ABCD 绕顶点 B 顺时 针旋转到□A1BC1D1,当 C1D1 首次经过顶点 C 时,旋转角 ∠ABA1= ▲ ° .
A1 D C C1 A B (第 13 题) D1
第 2 页 共 14 页
14.某科研机构对我区 400 户有两个孩子的家庭进行了调查,得到了 表格中的数据,其中(男,女)代表第一个孩子是男孩,第二个孩子 是女孩,其余类推.由数据,请估计我区两个孩子家庭中男孩与女 孩的人数比为 ▲ :▲ .
16. 将一张长方形纸片按照图示的方式进行折叠: ①翻折纸片,使 A 与 DC 边的中点 M 重合,折痕为 EF; ②翻折纸片,使 C 落在 ME 上,点 C 的对应点为 H,折痕为 MG; ③翻折纸片,使 B 落在 ME 上,点 B 的对应点恰与 H 重合,折痕为 GE.
D C ① D F M C ② D F H A B A E B A E G B M C ③ D F H A E M
D C D C D C
▲
பைடு நூலகம்
;
A
O B 图①