全国重点高中提前招生考试全真试卷(八)

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全国重点高中提前招生考试全真试卷物理

全国重点高中提前招生考试全真试卷物理

全国重点高中提前招生考试全真试卷物理一、选择题(每小题只有一个选项符合题意,每小题4分,共32分)1. 下列关于力的说法中,正确的是()A. 物体不受力时一定处于静止状态B. 物体做匀速直线运动时一定不受力或受平衡力C. 物体受非平衡力作用时,运动状态一定改变D. 物体运动速度越大其惯性越大2. 下列关于浮力的说法中,错误的是()A. 浮力的方向总是竖直向上的B. 物体只有浸没在液体中时,才受到浮力的作用C. 浮力起因于液体内部的压强随深度的增加而增大D. 阿基米德原理说明物体在液体中所受的浮力大小等于排开液体的重力3. 下列关于光的说法中,正确的是()A. 光在同种均匀介质中沿直线传播B. 光从空气斜射入水中时,折射角大于入射角C. 平面镜成像时,像与物体到平面镜的距离不相等D. 凸透镜对光线有发散作用A. 电荷的定向移动形成电流B. 电路中有电源就一定有电流C. 导体中的电流跟导体两端的电压成正比,跟导体的电阻成反比D. 欧姆定律只适用于纯电阻电路5. 下列关于热的说法中,正确的是()A. 物体的内能与物体的运动速度、物体的温度、物体的状态都有关系B. 改变物体内能的方式有两种:做功和热传递C. 温度高的物体含有的热量多D. 热量总是从内能大的物体向内能小的物体传递6. 下列关于声的说法中,错误的是()A. 声音是由物体的振动产生的B. 声音的传播需要介质C. 声音在真空中的传播速度最大D. 禁止鸣笛是在声源处减弱噪声7. 下列关于磁的说法中,正确的是()A. 磁感线是真实存在的B. 地球周围存在磁场,地磁的北极在地理的南极附近C. 通电导体在磁场中一定会受到力的作用D. 电磁铁的磁性强弱与电流的大小和线圈的匝数无关A. 动能和势能统称为机械能B. 物体能够做的功越多,它具有的能量就越大C. 物体具有的能量越大,它做的功一定越多D. 能量是描述物体运动状态的物理量二、填空题(每空2分,共20分)9. 物体由于发生弹性形变而产生的力叫做________。

全国重点高中提前招生考试全真卷英语八下

全国重点高中提前招生考试全真卷英语八下

全国重点高中提前招生考试全真卷英语八下The National Key High School Early Admission ExamFull-Real Paper English Grade EightSection A: Reading Comprehension1. Read the passage and answer the questions below.The Great Wall of China is one of the most famous landmarks in the world. It was built over 2,000 years ago to protect China from invaders. The wall stretches over 21,000 kilometers long and took over 1,000 years to build. It is made up of walls, watchtowers, and forts.a. Why was the Great Wall of China built?b. How long is the Great Wall of China?c. How long did it take to build the Great Wall of China?2. Read the passage and fill in the blanks with the correct words.The Taj Mahal is located in ___________. It was built by Emperor Shah Jahan in memory of his ___________. The Taj Mahal is made of white marble and is considered one of the most beautiful buildings in the world. It is often called a symbol of love.Section B: Vocabulary and Grammar1. Fill in the blanks with the correct form of the verbs.a. He ___________ (work) in the garden every day.b. They ___________ (not watch) TV last night.c. She ___________ (write) a letter to her friend tomorrow.2. Choose the correct word to complete the sentences.a. I ___________ (enjoy/enjoyed) the movie last night.b. Sarah and Peter ___________ (is/are) coming to the party with us.c. My brother ___________ (play/played) soccer every Saturday.Section C: WritingWrite a short paragraph about your favorite school subject and why you enjoy it. Use at least three reasons to support your opinion.Overall, the National Key High School Early Admission Exam Full-Real Paper English Grade Eight is designed to test students' reading comprehension, vocabulary, grammar, and writing skills. Students who excel in these areas are likely to succeed in thecompetitive high school admissions process. Good luck to all the students taking the exam!。

重点中学提前招生考试选拔试卷--和详细答案

重点中学提前招生考试选拔试卷--和详细答案

重点中学提前招生考试选拔模拟试卷本卷可能用到的相对原子质量:C —12 H —1 O —16 Cl —35.5 Cu —64 Na —23 S —32 Mg —24 Fe —56 Al —27 Si —28 Ba —137 一、选择题:(每小题2分,共40分) 1. 已知氧化还原反应中存在如下关系:强氧化剂+强还原剂→弱氧化剂+弱还原剂,现有下列三个能反应的式子:( )2W - + X 2 →2X - + W 2 2Y - + W 2 → 2W - + Y 2 2X - + Z 2 → 2Z - + X 2 以上反应均在同温、同压、同浓度下进行,正确结论是A.氧化性是:Y 2>X 2B.还原性是:Y ->Z -C.2Z - + Y 2 → 2Y - + Z 2的反应能够进行D.在X -、Y -、W -、Z -中X -的还原性最强2. 18O 是科学实验中常用的一种示踪原子,用仪器可以观测到它在化学变化中的行踪。

在某一饱和硫酸铜溶液(不含18O )中,加入ag 带标记18O 的无水硫酸铜粉末(CuSO 4中的氧元素全部为18O ),如果保持温度不变,其结果是( )A.无水硫酸铜不再溶解,ag 带标记18O 的无水硫酸铜粉末没有发生改变B.溶液中可以找到带标记18O 的SO 42-,且白色粉末变为蓝色晶体,其质量小于agC.溶液中可以找到带标记18O 的SO 42-,且白色粉末变为蓝色晶体,其质量大于agD.有部分带标记18O 的SO 42-进入溶液中,但固体质量保持不变 3. 如图所示,在竖直平面xoy 内,人眼位于P(0,4)位置处,平面镜MN 竖直放置,其两端M 、N 的坐标分别为(3,1)和(3,0),某发光点S 在该竖直平面y 轴的右半部分某一区域内自由移动时,此人恰好都能通过平面镜看见S 的像,则该区域的最大面积为( ) (A)0.5米2 (B)3.5米2。

(C)4米2 (D)4.5米24. 图中a 、b 、c 为三个物块,M 、N 为两个轻质弹簧,R 为跨过光滑定滑轮的轻绳,它们连接如图并处于平衡状态,则正确的选项为( ) (1)、有可能N 处于拉伸状态而M 处于压缩状态 (2)、有可能N 处于压缩状态而M 处于拉伸状态 (3)、有可能N 处于不伸不缩状态而M 处于拉伸状态 (4)、有可能N 处于拉伸状态而M 处于不伸不缩状态A 、①②B 、①③C 、③④D 、①④5. mol 是表示物质量的一种单位,1mol 的Na 、Mg 、Al 三种金属的质量分别为23克、24克、27克。

(整理)高中提前批招生试卷

(整理)高中提前批招生试卷

重点普通高级中学自主招生考试科学试卷考生须知:1.全卷共8页,有4大题,39小题。

满分为150分,考试时间120分钟。

2.本卷答案必须做在答题纸的对应位置上,做在试题卷上无效。

3.本卷可能用到的相对原子质量:C:12 H:1 O:16 Cl:35.5 Fe:56 Cu:64 温馨提示:请仔细审题,细心答题,相信你一定会有出色的表现。

试卷Ⅰ一、选择顾(本题有20 小题,每小题3 分,共60 分。

请选出各题中一个符合题意的正确选项.不选、多选、错选,均不给分)1.专家把绿色植物通过光合作用转化的食品叫绿色食品,海洋提供的食品叫蓝色食品,通过微生物发酵制得的食品叫白色食品。

下列属于绿色食品的是A.海带B.大米C.食醋D.食盐2.酸与碱作用生成盐和水的反应,叫做中和反应,它在工农业生产和日常生活有广泛的用途,下列应用一定与中和反应原理无关的是的药物治疗胃酸过多A.服用含Al(OH)3B.施用熟石灰改良酸性土壤C.用熟石灰和硫酸铜配制波尔多波D.用NaOH溶液洗涤石油产品中的残余硫酸3.如果在载玻片上写一个字如图甲所示,用显微镜观察,怎样能使图象变成图乙?A.将载玻片顺时针转动90°B.将载玻片逆时针转动90°C.将载玻片向左上角移动D.将载玻片向右下角移动4 .铁路提速要解决的一个重要技术问题就是提高机车牵引力功率。

已知匀速行驶时,列车所受阻力与速度的平方成正比,即f =kv2,当列车分别以180k m/h 和60km/h的速度在水平轨道上匀速行驶时,机车的牵引力功率之比为A.3:1B.9:lC.27:1D.81:l5.如图,在一凸透镜左侧放一厚矩形玻璃砖,当平行光从右边射来通过玻璃砖时,其聚焦位置较无此玻璃砖时A.向左移B.向右移C.不变D.无法确定6.宇宙飞船关闭发动机后在大气层外绕地球飞行时,飞船内可能出现的现象是A.物质的质量消失B.蜡烛正常燃烧C.物体自由下落的速度变快D.水滴可以呈球形漂浮在空中7.如图,甲与乙是两只完全相同的金属球,A 悬挂在不计热膨胀的绝热细线下,B 放在不计热膨胀的绝热桌面上,当A 、B 两球升高相同的温度后,结合能的转化和守恒定律,可以判断A 、B 所吸收的热量A.QA =QBB.QA> QBC.QA <QBD.不能确定8.某著名运动器材厂商为世界杯的足球明星设计了一种新球鞋,穿这种鞋踢球能加强球在空中的旋转。

高中提前招生考试卷 试题(共13页)

高中提前招生考试卷 试题(共13页)

2021年高中(gāozhōng)提早招生考试卷本卷满分是120分,考试时间是是100分钟。

一、选择题〔每一小题4分,一共40分〕1.函数y=2021x自变量x的取值范围是…………………〔〕A.x>0 B.x<0 C.x=0 D.x≠02. 假如从一卷粗细均匀的电线上截取1米长的电线, 称得它的质量为克,再称得剩余电线的质量为克, 那么原来这卷电线的总长度是……………( )A.b+1a米; B.〔ba+1〕米; C.〔a+ba+1〕米; D.〔ab+1〕米3. 国家质检总局出台了国内销售的纤维制品甲醛含量HY, 从2003年1月1 日起正式施行.该HY规定:针织内衣. 床上用品等直接接触皮肤的制品,甲醛含量应在百万分之七十五以下. 百万分之七十五用科学记数法表示应写成………( )A.75×10-7; B.75×10-6; C.7.5×10-6; D.7.5×10-54. ⊙O1半径为3cm,⊙O2的半径为7cm, 假设⊙O1和⊙O2的公一共点不超过1个, 那么两圆的圆心距不可能为………………………( )A.0cm; B.4cm; C.8cm; D.12cm5. 如下图的两个圆盘中,指针落在每一个数上的时机均等,那么两个指针同时落在偶数上的概率是……( )A.1925; B.1025; C.625; D.5256. 在四边形ABCD中,对角线AC与BD相交(xiāngjiāo)于点E,假设AC平分∠DAB,AB=AE,AC=AD. 那么在以下四个结论中:(1) AC⊥BD;(2)BC=DE;(3)∠DBC=1 2∠DAB;(4) △ABE是正三角形,正确的选项是……………( )A.(1)和(2); B.(2)和(3); C.(3)和(4); D.(1)和(4)7. 红星准备创办一些学生课外活动的兴趣班,结果反响热烈。

各种班的方案招生人数和报名人数,列前三位的如下表所示班计算机奥数英语口语方案人数100 90 60班计算机英语口语音乐艺术报名人数280 250 200假设方案招生人数和报名人数的比值越大,表示开设该兴趣班相对学生需要的满足程度就越高,那么根据以上数据,满足程度最高的兴趣班是------〔〕A.计算机班; B.奥数班;C.英语口语班; D.音乐艺术班8. 抛物线y=ax2+2ax+a2+2的一局部如下图,那么该抛物线在y轴右侧与x轴交点(jiāodiǎn)的坐标是……………( )A .〔12 ,0〕; B .〔1, 0〕;C .〔2, 0〕;D .〔3, 0〕9. 如图是一张简易活动餐桌,现测得OA=OB=30cm , OC=OD=50cm ,现要求桌面离地面的高度为40cm ,那么两条桌腿的张角∠COD 的大小应为…………………( )A .100°;B .120°;C .135°;D .150°. 10. 以下四个图形中,每个小正方形都标上了颜色. 假设要求一个正方体两个相对面上的颜色都一样,那么不可能是这一个正方体的展开图的是-------〔 〕二、填空题〔每一小题5分,一共30分〕11. 如图是2021年1月的日历,李钢该月每周都要参加1次足球赛,一共参加5次.按照原定的安排,其中去1次的是星期日、星期一和星期六,去2次的是星期三.那么李钢参加比赛的日期数的总和是 .日 一 二 三 四 五 六 周次 1 2 3 4 5 6 7 一 8 9 10 11 12 13 14 二 15 16 17 18 19 20 21 三 22 23 24 25 26 27 28 四 293031五黄 红 黄 红绿 绿黄 红 绿红 绿黄 绿 红 红 绿 黄黄 绿 红黄 红 黄 绿A .B .C .D .12. 假设(jiǎshè)不等式组有解,那么a必须满足 .13. A 、B、C、D点的坐标如下图, 是图中两条虚线的交点, 假设△ABC 和△ADE相似, 那么E点的坐标是___________________.14. 等腰△ABC的底边BC=8cm,腰长AB=5cm,一动点P在底边上从点B开场向点C以/秒的速度运动, 当点P运动到PA与腰垂直的位置时,点P运动的时间是应为秒.15. 请你将一根细长的绳子,沿中间对折,再沿对折后的绳子中间再对折,这样连续对折5次,最后用剪刀沿对折5次后的绳子的中间将绳子剪断,此时绳子将被剪成段.16. 假设一家旅馆一一共有30个房间,分别编以1~30三十个号码,如今要在每个房间的钥匙上刻上数字,要求所刻的数字必须使效劳员很容易识别是哪一个房间的钥匙,而使局外人不容易猜到. 如今有一种编码的方法是:在每把钥匙上刻上两个数字,左边的一个数字是这把钥匙原来的房间号码除以5所得的余数,而右边的一个数字是这把钥匙原来的房间号码除以7所得的余数. 那么刻的数是36的钥匙所对应的原来房间应该是号.三、解答(jiědá)题〔本大题满分是50分,17-19题每一小题6分,20-23题每一小题8分〕17. 从卫生纸的包装纸上得到以下资料:两层300格,每格×11cm,如图甲。

重点中学提前招生选拔考试试卷

重点中学提前招生选拔考试试卷

提前招生选拔考试试卷 科 学 考生须知: 1、全卷满分150分,考试时间120分钟。

2、本卷可能用到的相对原子质量:H―1 O―16 C―12 S―32 Fe―56 Cu―64 N―14 Al ―27 Mg―24 Cl―35.5 Ba―137 Ca―40 Na―23 Zn―65 一、选择题(本题共20小题,每小题3分,共60分,每小题只有一个选项符合题意) 1.下列说法中,不正确的是( ) A .水银不是银 B .纯碱不是碱 C .干冰不是冰 D .食盐不是盐 2.如图,实验桌上放置的两容器中盛有等体积的乙酸(醋酸)和水两种液体。

几天后,两者的体积都明显减少,且乙酸比水减少得多。

由此现象得出的正确结论是 ( )A .乙酸与水都能挥发B .乙酸比水易挥发C .乙酸的熔点比水低D .乙酸的沸点比水高3.种子中潜在分裂能力较强的细胞存在于( )①种皮 ②胚芽 ③胚根 ④子叶 ⑤胚乳A .①②B .②③C .③⑤D .④⑤4.长岛是个淡水严重短缺的海岛,海水淡化是解决这一问题的有效措施.右图是小明同学设计的海水淡化流程图,在这一过程中海水先后发生的物态变化( ) A .液化、汽化 B .汽化、液化 C .汽化、升华 D .升华、液化 5.下列研究过程中,运用“逆向思考法”的是( )A .研究电流时,将其比作水流B .通过瓶口塞子上插着的细管中液面的变化,显示玻璃瓶的微小形变C .研究电流时,设想自己就是电路中移动的电荷D .研究电磁现象时,由电生磁想到磁能否生电6.如图所示,物体甲静止在水平桌面上,当物体乙轻放到甲上后,下列现象不可能...发生的是( )A .甲相对于桌面保持静止状态,而乙相对于甲也静止B .甲相对于桌面保持静止状态,而乙相对于甲沿斜面滑下C .甲相对于桌面向右运动,而乙相对于甲沿斜面滑下D .甲相对于桌面向右运动,而乙相对于甲静止7.与火车相比,汽车车厢外表面更容易堆积灰尘。

对于导致这种现象的原因分析,你认为下列说法中最可能的是( )A .火车车厢的外表面比汽车车厢的外表面光滑,更不容易堆积灰尘加热 水蒸气 水蒸气盐水淡水海水 淡水B .火车行驶的速度比汽车的大,产生的风更大,更容易把灰尘吹掉C .在车辆行驶过程中,车厢外表面由于和空气摩擦而带电,因为汽车的轮胎是绝缘的橡胶,和铁轮的火车相比汽车不容易把电荷导入地下,因而更容易吸附灰尘。

重点高中提前招生考试物理试卷八

重点高中提前招生考试物理试卷八

重点高中提前招生考试物理试卷八一、选择题(20×4分=80分,每小题至少有一个正确选项)1.如图所示,这是我军举行的某次大型军事演习,大型加油机正在给受油机进行空中加油此时下列有关它们的说法中,正确的是()A.相对于地面来说,受油机是静止的B。

若选受油机为参照物,加油机是静止的C.相对于加油机来说,受油机是运动的D。

若选地面为参照物,加油机是静止的2.电视机的开启和关闭可以通过遥控器实现,遥控器用来控制电视机的是()A.红光B。

红外线C。

紫光D。

紫外线3.下列关于功、功率、机械效率的说法正确的是()A.机械效率越大,做功越多B。

机械效率越大,功率越大C.功率越大,做功越快D。

功率越大,做功越多4.下列估测合理的是()A.一只咸鸭蛋的质量约为600g B。

一张报纸的厚度约为75nmC.一名中学生1s心跳约70次D。

一盏教室内的日光灯正常工作时的功率约为40W5.如图是某运动员进行射箭比赛的情形,下面说法错误的是()A.被拉弯的弓具有弹性势能B.手拉弓弯,说明力能使物体发生形变C.手对弓的拉力大于弓对手的拉力D.运动员松手时弓的弹性势能将转化为箭的动能6.如图所示的电路中,电源电压保持不变,R为定值电阻,当在a、b两点间接入一个“2.5V0.5A”的小灯泡时,恰好正常发光;若换一个“2.5V 0.6A”的小灯泡,则这个小灯泡()A.比正常发光暗些B。

比正常发光亮些C.仍能正常发光D。

条件不足,无法判定7.如图所示,甲、乙、丙、丁是四个体积形状相同而材料不同的球,图中所示是把它们投入水中后静止不动时的情况,它们中密度最小的是()A.甲B乙C丙D丁8.如图所示,在相等的时间内把同一物体分别沿AO、BO两个光滑斜面匀速拉到相同的高度,拉力所做的功分别为W A和W B,功率分别为P A和P B,它们之间的关系是()A.W A<W B P A<P B B。

W A>W B P A>P BC 。

W A =W B P A <P BD 。

高中提前批招生试卷

高中提前批招生试卷

重点普通高级中学自主招生考试科学试卷考生须知:1.全卷共8页,有4大题,39小题。

满分为150分,考试时间120分钟。

2.本卷答案必须做在答题纸的对应位置上,做在试题卷上无效。

3.本卷可能用到的相对原子质量:C:12 H:1 O:16 Cl:35.5 Fe:56 Cu:64 温馨提示:请仔细审题,细心答题,相信你一定会有出色的表现。

试卷Ⅰ一、选择顾(本题有20 小题,每小题3 分,共60 分。

请选出各题中一个符合题意的正确选项.不选、多选、错选,均不给分)1.专家把绿色植物通过光合作用转化的食品叫绿色食品,海洋提供的食品叫蓝色食品,通过微生物发酵制得的食品叫白色食品。

下列属于绿色食品的是A.海带B.大米C.食醋D.食盐2.酸与碱作用生成盐和水的反应,叫做中和反应,它在工农业生产和日常生活有广泛的用途,下列应用一定与中和反应原理无关的是A.服用含Al(OH)的药物治疗胃酸过多3B.施用熟石灰改良酸性土壤C.用熟石灰和硫酸铜配制波尔多波D.用NaOH溶液洗涤石油产品中的残余硫酸3.如果在载玻片上写一个字如图甲所示,用显微镜观察,怎样能使图象变成图乙?A.将载玻片顺时针转动90°B.将载玻片逆时针转动90°C.将载玻片向左上角移动D.将载玻片向右下角移动4 .铁路提速要解决的一个重要技术问题就是提高机车牵引力功率。

已知匀速行驶时,列车所受阻力与速度的平方成正比,即f =kv2,当列车分别以180k m/h 和60km/h的速度在水平轨道上匀速行驶时,机车的牵引力功率之比为A.3:1B.9:lC.27:1D.81:l5.如图,在一凸透镜左侧放一厚矩形玻璃砖,当平行光从右边射来通过玻璃砖时,其聚焦位置较无此玻璃砖时A.向左移B.向右移C.不变D.无法确定6.宇宙飞船关闭发动机后在大气层外绕地球飞行时,飞船内可能出现的现象是A.物质的质量消失B.蜡烛正常燃烧C.物体自由下落的速度变快D.水滴可以呈球形漂浮在空中7.如图,甲与乙是两只完全相同的金属球,A 悬挂在不计热膨胀的绝热细线下,B 放在不计热膨胀的绝热桌面上,当A 、B 两球升高相同的温度后,结合能的转化和守恒定律,可以判断A 、B 所吸收的热量A.Q A =Q BB.Q A > Q BC.Q A <Q BD.不能确定8.某著名运动器材厂商为世界杯的足球明星设计了一种新球鞋,穿这种鞋踢球能加强球在空中的旋转。

重点高中新生提前招生语数英科试卷及答案

重点高中新生提前招生语数英科试卷及答案

2019年重点中学分班考试数学试卷满分:120分 时间:90分钟一、选择题(本题有10个小题,每小题3分,共30分) (1)如果一元一次不等式组⎩⎨⎧>>a x x 3的解集为x >3,则a 的取值范围是 A .a >3 B .a ≥3 C .a <3 D .a ≤3(2)若实数x 满足12223-=++x x x ,则9932x x x x ++++ =A .1-B .0C .1D .99(3)如果从一卷粗细均匀的电线上截取1米长的电线, 称得它的质量为a 克,再称得剩余电线的质量为b 克,那么原来这卷电线的总长度是A .a b 1+米B .(a b +1)米C .(a+b a +1)米D .(b a +1)米(4)若实数n 满足2)45()46(22=-+-n n ,则代数式)45)(46(n n --的值是A .1-B .21-C .21D .1(5)已知方程2(21)10x k x k +++-=的两个实数根12,x x 满足1241x x k -=-,则实数k 的值为 A .—3,0 B .1,43-C .1,13- D .1,0 (6)如图,矩形AOBC 的面积为16,反比例函数xky =的图象经过矩形的对角线的交点P ,则反比例函数的解析式是A .x y 1= B .x y 2=C .x y 4=D .x y 8= (7)设213a a +=,213b b +=,且a b ≠,则代数式3311ba +的值为A .24-B .18-C .18D .24(8)当x 分别取值201,191,181,…31,21,1,2,3,…,18,19,20时,计算代数式2211x x +-的值,将所得的结果相加,其和等于A .-20B .0C .1D .20(9)如图,∠ACB =60○,半径为2的⊙O 切BC 于点C ,若将⊙O 在CB 上向右滚动,则当滚动到⊙O 与CA 也相切时,圆心O 移动的水平距离为A .32B .4C .πD .2π(10)方程813222=++y xy x 的整数解(,)x y 的组数为A .7B . 6C .5D .4二、填空(本题有7个小题,其中11题6分,其余每小题4分,共30(第9题)分)(11)直接写出下列关于x 的方程的根:①015722=-+x x ; ②24)3)(2)(1(=+++x x x x ;③41122=+++x x xx ;④01)2(2=+--+a x a x ; (12)已知三个数a 、b 、c 的积为负数,和为正数,且x =a a +b b +c c +ab ab +ac ac +cb bc,则ax 3+bx 2+cx +1=_________.(13)若化简16812+---x x x 的结果为52-x ,则x 的取值范围是 . (14)如图,DE 是△ABC 的中位线,点P 是DE 的中点,CP 的延长线交AB 于点Q ,那么:DPQ ABC S S ∆∆=______________. (15)若实数a 、b 满足b >a >0,且ab b a 422=+,则ba b a +-= . (16)若实数b a ,满足0111=+--ba b a ,则=+ab b a 22. (17)桌面上有三颗球,相互靠在一起。

重点高中提前招生数学试卷

重点高中提前招生数学试卷

数学试卷(满分100分)一、选择题(每小题均给出了代号为A 、B 、C 、D 的四个结论,其中只有一 个是正确的,请将正确答案的代号填在题后的括号内,每题4分,共28分, 选择题的答案写在答卷上) 1.若mx 11-=是方程022=+-m mx 的根,则m x -的值为 ( ) A .0 B .1 C .-1 D .2 2.内角的度数为整数的正n 边形的个数是 ( )A .24B .22C .20D .183.某商场五一期间举行优惠销售活动,采取“满一百元送二十元,并且连环赠送”的 酬宾方式,即顾客每消费满100元(100元可以是现金,也可以是购物券,或二者合计)就送20元购物券,满200元就送40元购物券,依次类推,现有一位顾客第一次就用了16000元购物,并用所得购物券继续购物,那么他购回的商品大约相当于它们原价的( ) A .90% B .85% C .80% D .75%4.设x 为正整数,若1+x 是完全平方数,则它前面的一个完全平方数是 ( ) A .x B .12+-x x C .112++-x x D .212++-x x 5.横坐标、纵坐标都是整数的点叫做整点,函数1236-+=x x y 的图象上整点的个数是 ( ) A .3个 B .4个 C .6个 D 6、如图,四边形BDCE 内接于以BC 为直径的⊙A ,已知:︒=∠=∠=30,53cos ,10BCE BCD BC ,则线段DE 的长是 ( )A 、89B 、73C 、4+33D 、3+437、某学校共有3125名学生,一次活动中全体学生被排成 一个n 排的等腰梯形阵,且这n 排学生数按每排都比前一排 多一人的规律排列,则当n 取到最大值时,排在这等腰梯形阵最外面的一周的学生总人数是 ( )A.296B.221C.225D.641数学答题卷8.计算:1+2-3+4+5-6+7+8-9+…+97+98-99+100= .9.若抛物线1422++-=p px x y 中不管p 取何值时都通过定点,则定点坐标为10.已知实数x 满足012)(4)(222=----x x x x ,则代数式12+-x x 的值为11.若方程组⎩⎨⎧+=--=+433235k y x k y x 的解为⎩⎨⎧==,,b y a x 且||k <3,则b a -的取值范围是12、若对任意实数x 不等式b ax >都成立,那么a 、b 的取值范围为 13、设21≤≤-x ,则2212++--x x x 的最大值与最小值之差为 14.有八个球编号是①至⑧,其中有六个球一样重,另外两个球都轻1克,为了找出这两个轻球,用天平称了三次,结果如下:第一次①+②比③+④重,第二次⑤+⑥比⑦+⑧轻,第三次①+③+⑤和②+④+⑧一样重.那么,两个轻球的编号是__15.在2×3的矩形方格纸上,各个小正方形的顶点为格点。

重点高中提前招生物理试卷(08分配生正卷)

重点高中提前招生物理试卷(08分配生正卷)

2008年黄陂一中分配生素质测试科 学 试 卷注意事项:1、本卷共10页,分为物理、化学两部分,考试时间90分钟,满分100分。

2、请在试卷指定位置填写毕业学校、姓名、准考证号等信息。

3、请直接在试卷上答题。

物 理 部 分(共60分)第 Ⅰ 卷 (选择题,共12分)一、选择题(共6小题,每小题2分,满分12分。

每小题只有一个选项符合题意,把所选字母填在题中括号里)1.我们经常提到的像:①小孔成像 ②平面镜成像 ③放大镜成像④电影银幕上的像 ⑤汽车观后镜中的像。

其中正确..的是 ( ) A. 由于光的折射而成像的是①③④ B. 由于光的反射而成像的是②⑤ C. 属于实像的是①②③ D. 属于虚像的是②③④2.下列现象中不可能出现的是 ( )A .寒冷的冬天,冰冻的衣服会变干B .潮湿的夏天,从冰箱里取出的冰糕冒“白气”C .有风的天气,游泳后从水中出来会感觉格外冷D .冬天的早晨,窗玻璃外面会出现冰花3.水在日常生活中有着不可替代的作用,如果水的密度、比热容、沸点、熔点等性质发生变化,下列说法中错误..的是 ( ) A .如果水的密度变得与水银一样大,那么任何人、石头、铁块都可以在水面上漂浮B .如果水的比热容比酒精还小,那么相同情况下将水烧开所用的时间会更长C .如果水的沸点升高到120℃,那么煮熟、煮烂食物十分容易 D. 如果水的熔点降低到-150℃,那么所有的冰山将不会存在4. 如图所示图像,不能..表示一定条件下.....哪组物理量之间的关系A.匀速直线运动的路程和时间之间的关系 B.压强一定时压力和受力面积之间的关系 C.电阻一定时电流和电压之间的关系D.电阻和通电时间一定时电流产生的热量和电流之间的关系5. 下图中提供了某些情况下的压强数值。

利用这些数据可知,一名中学生躺在床面上时,床面的受力面积约为 ( )A .0.015m 2B .0.03m 2C .0.15m 2D .0.3m 26.左图是某热敏电阻的阻值随温度变化的图像,小明同学用该热敏电阻和电流表设计了一只测量范围为0~100℃的水温表。

提前招生试卷

提前招生试卷

重点高中提前招生试卷1. Wenzhou is ______ most beautiful tourist city and I believe I’ll come for _ ____ second time.A. the; aB. a; aC. the; theD. a; the( )2. — Have you heard today’s weather forecast?— Yes. Better weather is ______. We can expect an outing.A. in the wayB. by the wayC. on the wayD. in this way ( )3. — Can I tell my best friend about it?— No, I don’t want anyone else to know it. You _______ keep it to yourself.A.MustB. needC. canD. may( )4. Is this school __________ you visited last month?A. whereB. the one whereC. thatD. the one( )5. When I handed the report to Peter, he said that David was the right p erson ________.A. to send it toB. to sendC. to be sentD. for sending( )6. Oxford, as we know, ________ is one of the best universities in the wo rld.A. thatB. /C. itD. this( )7. Studying abroad is quite different from life in China. It took me nearly h alf a year to ____ the language problem and culture shock.A. turn overB. look overC. get overD. go over( )8. —What’s the best way of losing weight?— _________A. Why not playing games?B. Why don’t you play games?C. I advise you to playing games?D. You’d better to play games?( )9.I’ve worked with children before, so I know what_______ in my new job.A. expectsB. to expectC. expectedD. expecting()10. Smoking is bad for your health. You’d better ________.A. take it downB.turn it downC.put it downD.get out ofII.完形填空We live in a fast-paced and anxiety-filled world that oftentimes seems to shift beneath our feet. Thus we are sometimes affected by fears or anxiety impacting our life. For as long as I could remember I had struggled with anxiety. After I left university, I made friends with a Moroccan woman at work. One day she invited me to 16 her and her family back home. I wanted to, but I would have to travel there 17 and I knew we would be in a very rural area. How would I cope with my 18 ?Then one day it 19 to me that I had a life to live. I could choose to let anxiety 20 me or I could go to Morocco and 21 something different. I was 23 years old and had never been out of the UK alone. The journey to Morocco 22 something inside me. I managed to cope with my anxiety. The sense of 23 was overwhelming and still to this day when I get afraid of going somewhere alone, I remember how 24 it felt when I arrived in Morocco.Upon arrival I was so 25 for the generous welcome I received. My friend’s family had arranged a welcome party. The people were so loving toward me. As a moment of 26 felt in a faraway village, this reminded me that I was “good enough”, which helped to 27 my anxiety.Waking up the next day, in the morning light, I saw the area where we were. I was 28 by how rural it was – and the realization that these people had very few 29 .In the days afterwards, I traveled around Morocco. We went to Marrakesh and 30 the Atlas mountains. We had the most amazing food – lots of fresh fruits and vegetables.At the end of my 31 something inside me had changed. I realized I had not felt anxious for nearly two weeks.Experiencing a different culture far away from home helped me to realize what is important in life, what really 32 , and with that my anxiety 33 . When I returned home I was much more active in 34 my anxiety. Working with people, helping them 35 their anxiety, is how I can share the love I found in Morocco.11.A. send B. consult C. call D. visit12.A. alone B. soon C. free D. safe13.A. work B. curiosity C. homesickness D. worries14.A. appeared B. hit C. struck D. occurred15.A. impress B. control C. reach D. persuade16.A. enjoy B. experience C. take D. experiment17.A. changed B. C. supported D. impressed18.A. achievement B. fear C. disappointment D. embarrassment 19.A. good B. ashamed C. afraid D. proud20.A. sorry B. confused C. confident D. thankful21.A. doubt B. luck C. love D. surprise22.A. improve B. hold C. protect D. reduce23.A. inspired B. moved C. pleased D. shocked24.A. lands B. difficulties C. resources D. friends25.A. discovered B. explored C. examined D. recognized26.A. opportunity B. rush C. stay D. life27.A. rules B. exists C. matters D. hurts28.A. disappeared B. expanded C. remained D. removed29.A. expressing B. challenging C. forgetting D. remembering30.A. drop B. notice C. pass D. overcomeIII.阅读理解(A)Do you feel a little sleepy after lunch? Well, that’s normal. Your body natural ly slows down then. What should you do about it? Don’t reach for a coffee! Ins tead, take a nap.There are many benefits(好处)of a daily nap. First of all, you are more efficient(有效率) after napping. You remember things better and make fewer mistakes. Al so, you can learn things more easily after taking a nap. A 20-minute nap can reduce information overload. It can also reduce stress. Finally , a nap may increase your self-confidence and make you more alert(灵活). It may even cheer you up.But, there are some simple rules you should follow about taking a nap. First, take a nap in the middle of the day, about eight hours after you wake up. Oth erwise, you may disturb your sleep-wake pattern. Next, a 20-minute nap is best. If you sleep longer, you may fall into a deep sleep. After w aking from a deep sleep, you will feel worse. Also, you should set an alarm clo ck. That way, you can fully relax during your nap. You won’t have to keep look ing at the clock so that you don’t oversleep.Now, the next time you feel sleepy after lunch, don’t get stressed. Put your head down, close your eyes, and have forty winks.31. What is a good rule for taking a nap?A. Use an alarm clock.B. Nap eight hours after waking up.C. Sleep for about half an hour.D. All of the above32. According to the passage, what is NOT a benefit of napping?A. It makes you strongerB. It makes you feel happierC. It gives you more self-confidenceD. It improves your memory33. Which may happen if an alarm clock is not used?A. You may relax more.B. You may feel too nervous to relax.C. You may forget an important meeting.D. You may not reduce your napping time.34. In the last paragraph, “have forty winks” can be replaced by “________”.A. do eye-protection exercisesB. close your eyes for forty timesC. have a short sleep during the daytimeD. pretend to have a quick nap after lunch(B)Do you think animals can predict(预报)the weather or other natural events? Farmers living in the countryside think so . For hundreds of years, they have observed animals. They think animals’ b ehavior(行为)can be connected to future weather conditions or events. For example, if swa ns fly into the wind, a hurricane is coming. Or, if cows lie down, a rainstorm is coming. There are many traditional stories connecting animals and natural ev ents. Many people think that these stories are just folklore, traditional stories and beliefs without scientific evidence(证据). Scientists, however, are beginning to take another look at some of these ideas. Kiyoshi Shimamura is a Japanese earthquake researcher. He notice d an increase in dog bites a short time before earthquakes hit. Then, he did a n investigation(调查)of twelve public health centers in Kobe, Japan. These health centers treated p eople after the 1995 earthquake. He noticed some interesting information abo ut the month before the big earthquake. Treatment for animal bites had increa sed. In fact, aggressive(冒犯的;侵略的)behavior in dogs, such as biting and barking loudly, jumped(猛增)60 percent!People noticed other changes in animal behavior before the earthquake as well. For example, fish began swimming together in large groups, only in the middle of the water and not near the edges. Also, birds flew away from their n ests for many days, leaving their eggs unprotected. The animal behavior sugg ests that animals may be able to predict natural events better than people. 35. What is the main idea of the passage?A. What animals do during earthquakesB. Many earthquakes of JapanC. Effect of natural events on animals’ actionsD. Folklore and other stories about animals36. How do dogs begin to behave just before an earthquake?A. They lie down in grass.B. They stay together in large groups.C. They leave their homes.D. They hurt people.37. What other animals behave strangely before an earthquake?A. PigsB. BirdsC. CowsD. All of the above38. What did Kiyoshi Shimamura look at during his investigation?A. Animal clinics treating dogsB. The number of patients with bitesC. The number of earthquakes a yearD. Places dogs go during earthquakes(C)My first performance(表演)in front of an audience was coming up soon.I tried as hard as I could to remain calm, but my heart was racing. I stared d own at my sweat-covered, shaking hands.I looked up again at the audience, realizing that these were real people. Th ey were not just my mum and dad, who would say, “Good job!” even if I mess ed up the entire piece. What if I had the wrong music? What if I played the wrong notes?As it turned out, I was never able to answer these questions because the s potlight(聚光灯) was waiting for me. I grasped my hands tightly together, drying off the sw eat.Slowly I walked to the mud-brown piano in the center of the room. It contained 88 demanding keys, which were waiting impatiently to be played. I swallowed the golf-ball-sized lump (隆起部分)in my throat and sat down. Slowly, I opened the music. Next, I rested my still s haking hands on the ivory(象牙色的)keys.As my fingers played across the keys, I was becoming more unsure of my p reparation for this moment. But the memory of my years of training came flood ing back. I knew that I had practised this piece so many times that I could play it backwards if requested.Although at one point I accidentally played two keys instead of the intended one, I continued to move my fingers automatically(自动地).My eyes burned holes into(were fixed on)the pages in front of me.There was no way that I was going to lose my concentration. To keep this t o myself, I leaned forward and focused carefully on the music.When I came to the end of the page, a warning went off inside my head: D ON’T MAKE A MISTAKE WHEN YOU TURN THE PAGE!Needless to say, I obeyed myself with all my heart and mind. And, proud of my “page-turning” feat(技艺), I finished the rest of the piece without making a single mistake.After the final note died away, a celebration went into action inside my head . I had finished. I had mastered the impossible.39. The author was nervous before the performance because _______.A. her mother and father weren’t presentB. the strong spotlight was shining onto the stageC. she hadn’t mastered the entire pieceD. she had never performed in public before40. The underlined phrase “mess up” in Paragraph 3 probably means ______ __.A. put into disorderB. forget aboutC. stop halfwayD. do well in41. The author _________.A. didn’t make any mistake in the performanceB. felt better at the beginning of the performanceC. paid all attention to nothing but her performanceD. lost her concentration(注意力)sometimes during the performance42. What did the author feel about her performance?A. She thought it was comfortable and successful.B. She thought it was very difficult but successful.C. She thought she had never made a mistake during the performance.D. She thought she played through the piece carefully but light-heartedly.(D)For Chinese, it’s time for dragon boat racing and Zongzi. But in South Kore a, wrestling and swing play are the highlights. However, both events go by the same name —the Dragon Boat Festival. It falls on May 5th of the lunar calendar.One festival, two cultures. Does one nation have the right to call it its own? It has been reported that South Korea will ask the United Nations Educational , Social and Cultural Organization(UNESCO联合国教科文组织)to make the celebration its cultural heritage(文化遗产). If successful, people from other countries may see the Dragon Boat Fes tival as a Korean creation.As the birthplace of the yearly event more than 2,000 years ago, China is not happy with the situation (情况). “It would be a shame if another country successfully made a traditional Chinese festival part of its own cultural heritage before China,” said Zhou H eping, deputy cultural minister. The Ministry of Culture is even thinking of maki ng its own application(申请)to UNESCO, covering all traditional Chinese festivals, including the Dragon B oat event.“I don’t like some of the food eaten at the festival, but I am shocked by South Korea ’s move,” said Jin Yutong, a Senior One student. “We should protect the cul tural heritage left by our ancestors(祖先).”It is thought that the festival is held in memory of the great poet Qu Yuan (340-278BC), who lived in the State of Chu during the Warring States Period. Quwas known to be a patriot (爱国者)and admired by ordinary people. He is said to have jumped into Miluo River, b ecause he had lost hope in his country’s future. When people heard about Qu’s death, they sailed up and down the river searching for his body. They also b eat the drums to fright away fish and threw Zongzi into water. These were sup posed to stop the fish from touching Qu. Dragon boat racing is said to have co me from the search for the poet’s body.Over the years, the Dragon Boat Festival has spread throughout the world. In Japan and Vietnam, as well as South Korea, the festival has mixed together w ith, and become part of the local culture.With this in mind, some experts say that it is meaningless to argue(争论)about which country the festival belongs. “Everyone can say that it came fro m China,” said Long Haiqing, an expert from Hunan Province. “But if the w hole nation can protect the culture heritage together, they will all benefit.”43. Which of the following country is NOT mentioned about the Dragon Boat F estival spreading?A. JapanB. VietnamC. South KoreaD. the United States44. From the passage, we can see Chinese people’s attitude(态度)toward the Dragon Boat Festival is that ______________.A. they do not like itB. they want to protect it because it is their cultural heritageC. it is a shame to protect itD. they won’t agree South Korea takes it as its own festival45. Racing boats to celebrate the festival comes from the story that ________ ___.A. people searched for Qu Yuan’s body by boatB. people searched for Qu Yuan’s boatC. Qu Yuan enjoyed boatingD. Qu Yuan liked building boats46. What can we infer(推断)from the last two paragraphs?A. The festival is celebrated in the same way all over the world.B. It matters a lot whose cultural heritage the festival is.C. It is good for the Chinese people to protect the cultural heritage.D. South Korea does not recognize that the festival is from China.(E)One evening after dinner, Mr. and Mrs. William called a family meeting. “W e’ve had to make a difficult dec ision.” Mr. William announced. “You see, your mother has been offered a post as co-director of a television in Chicago. Unluckily, the station is not here. After think ing long and hard about it, we’ve concluded(下结论)that the right decision is to move to Chicago.”Peter looked shocked, while his sister Amy breathlessly started asking whe n they’d be moving: “It’s surprising, but exciting!” she said. Peter simply said, “We can’t go —I can’t leave all my friends. I’d rather stay here and live with Tommy!”Mr. and Mrs. William hoped that by the time they moved in August, Peter w ould grow more accustomed(习惯)to the idea of leaving. However, he showed no signs of accepting the news, re fusing to pack his belongings. When the morning of the move arrived, Pete r was nowhere to be found. His parents called Tommy’s house, but Tommy’s mother said she hadn’t seen Peter. Mrs. William became increasingly worried, while her husband fel t angry with their son for behaving so irresponsibly(不负责任).What they didn’t know was that Peter had started walking over to Tommy’s house, with a faint idea of hiding in Tommy’s attic (阁楼) for a few days. But something happened on the way as Peter walked pas t all thefamiliar landscape of the neighborhood: the fence that he and his moth er painted, the tree that he and his sister used to climb, the park where he andhis father often took evening walks together. How much would these mean wi thout his family, who make them special in the first place? Peter didn’t take the time to answer that question but instead hurried back to his house, wondering if there were any moving cartons(纸板箱)the right size to hold his record collection.47. The conflict(分歧)in this story was caused by ________.A. Peter and Amy’s different tempers(脾气)B. a quarrel(争吵)between Tommy and PeterC. Peter’s disagreement with his parents about their moveD. Mr. and Mrs. William’s words of Peter’s irresponsibility48. Peter and Amy were both _________ after hearing the move.A. surprisedB. angry and worriedC. anxious for more detailsD. worried about packing49. The reason for Peter’s going home was that _______.A. he did not want to be left behindB. he realized his family was essential with himC. he hoped to reach an agreement with his parentsD. He wished to be a more responsible person50. What would more probably happen next?A. Peter would bring his records over to the Tommy’s house.B. Mr. and Mrs. William would call the police.C. Peter would join his family for house moving.D. Mr. and Mrs. William would start searching for Peter.④.任务型阅读(其中有两项多余)China is going green. In order to reduce air pollution and oil-shortages, automobile manufacturers have announced their plans to develop hybrid vehicles (混合燃料汽车) for the Chinese market. Toyota's hybrid car Prius will be ready to drive in China this week. 51Any vehicle is a hybrid when it combines two or more sources of power. Hy brid cars run off a rechargeable battery and gasoline. 52 .They run at 9 9 percent of their power when the car is cruising (匀速行驶). A specially designed battery motor provides extra power for running up hil ls or when extra acceleration is needed.Step into a Prius, and turn on the engine. The first thing you notice is how m uch quieter it is than a traditional car. At this point, the car's gasoline engine is dormant (休眠). 53 . If you stay at a low speed, you are effectively driving an elec tric car, with no gasoline being used, and no waste gas gives off.____54 , when to go electric, and when to use a combination of the two. If you go over 24 km/h, when you step on the gas pedal (油门), you are actually telling the computer how fast you want to go.____55 . When driving at high speed, the gasoline engine not only pow ers the car, but also charges the batteries. Any time you use the brake, the el ectric motor in the wheels will work like a generator and produce electricity to r echarge the batteries. As a consequence, the car's batteries will last for aroun d 200,000 miles.A.The hybrid cars reduce air pollution and oil-shortages.B. The onboard(车载的) computer makes the decision about when to use a gas engineC. Hybrid cars have special engines, which are smaller than traditional gasolin e engines.D.A specially designed battery motor provides extra power when needed.E. The electric motor will provide power until the car reaches about 24 km/h.F. The electronic motor recharges automatically using a set of batteriesG. Let's have a look at the new car.⑤.单词填空56.The car is running at a -------------(速度)of eighty kilometers an hour.57.The teacher is glad that everyone in her class is------------(渴望的)to learn.58.Jeff has the -----------(习惯)of listening to music while reading.59.Mr. White has been-------------(缺席的)from work for days, so he knows nothing about our new plan.60.He tried to----------(解释),but she wouldn’t listen.61.The local government is--(讨论)how to help the poor in the countryside.62.When things aren’t going well, my parents always ---------(鼓励)me, telling me not to give up.63.Miss Harper closed her eyes and ------------(假装)to be asleep.64.We sat chatting for a few ------------(分钟)after finishing our meal.65.I have been ----(深深地)impressed by a number of experiences in her life.⑥作文环境问题:今天环境变得越来越糟糕环境问题影响着人们的工作学习生活等而我们的工作生活生产等又使环境污染越来越严重..........如何保护我们的环境?请以“ How to protect/save our environment/world? ”为主题写一篇短文。

8浙江省嵊州市重点高中提前招生考试试卷

8浙江省嵊州市重点高中提前招生考试试卷

孟建平系列丛书全真考试卷(八)浙江省嵊州市重点高中提前招生考试试卷数学满分120分,考试时间100分钟一、选择题(共4小题,每小题5分,满分20分)1.如图是由若干个完全相同的小正方体组成的一个几何体的主视图和俯视图,则组成这个几何体的小正方体的个数是( )A.3个或4个B.4个或5个C.5个或6个D.6个或7个ADECBABC86主视图俯视图第1题图第2题图2.直角三角形纸片的两直角边长分别为6,8,现将△ABC按如图方式折叠,使点A与点B重合,折痕为DE,则tan∠CBE的值是( )A.247BC.724D.133.若A(a,b),B(1a,c)两点均在函数1yx的图象上,且-1<a<0,则b-c的值为( ) A.正数B.负数C.零D.非负数4.如图,AB是半圆的直径,点C是弧AB的中点,点E是弧AC的中点,连结EB,CA交于点F,则EFBF= ( )A.13B.14C.1D第4题图二、填空题(共4小题,每小题5分,满分20分)5.在同一坐标平面内,不可能由函数y=3x2+1的图象通过平移变换,轴对称变换得到的二次函数图象的一个解析式是.6.甲、乙两家汽车销售公司根据近几年的销售量,分别制作如图的统计图:A B年份乙公司30020102008700100500300甲公司从2007年到2011年,这两家公司中销售量增长较快的是 (填“甲公司”或“乙公司”).7.已知a +b =4n +2,ab =1,若19a 2+147ab +19b 2的值为2009,则n = . 8.将自然数按以下规律排列,则位于第六行第四十五列的数是 . 第一列 第二列 第三列 第四列 … 第一行 1 2 9 10 … 第二行 4 3 8 11 … 第三行 5 6 7 12 … 第四行 16 15 14 13 … 第五行 17 … …三、解答题(共5小题,满分80分)9.如图,A ,B 两地之间有一条河,原来从A 地到B 地需要经过桥DC ,沿折线A →D →C →B 到达,现在新建了桥EF ,可直接沿直线AB从A 地到达B 地,已知BC =12 km ,∠A =45°,∠B =37°.桥DC 和AB 平行,则现在从A 地到达B 地可比原来少走多少路程?(结果精确到0.1 km 1.41,sin 37°≈0.60,cos 37°≈0.80)第9题图10.某超市在家电下乡活动中销售A ,B 两种型号的洗衣机.A 型号洗衣机每台进价500元,售价550元;B 型号洗衣机每台进价1000元,售价1080元.(1)若该超市同时一次购进A ,B 两种型号洗衣机共80台,恰好用去6.1万元,求购进A ,B 两种型号洗衣机各多少台;(2)该超市为便A ,B 两种型号洗衣机共80台的总利润(利润=售价-进价)不少于5200元,但又不超过5260元,请你帮助该超市设计相应的进货方案.11.在平面直角坐标系中,A点的坐标为(0,4),C点的坐标为(10,0).(1)如图1,若直线AB∥OC,点D是线段OC的中点,点P在射线AB上运动,当△OPD是腰长为5的等腰三角形时,直接写出点P的坐标;(2)如图2,若直线AB与OC不平行,AB所在直线y=-x+4上是否存在点P,使△OPC是直角三角形,且∠OPC=90°,若有这样的点P,求出它的坐标,若没有,请简要说明理由.12.阅读理解:课外兴趣小组活动时,老师提出了如下问题:如图1,△ABC中,若AB=5,AC=3,求BC边上的中线AD的取值范围.小明在组内经过合作交流,得到了如下的解决方法:延长AD到E,使得DE=AD,再连接BE(或将△ACD 绕点D逆时针旋转180°得到△EBD),把AB、AC、2AD集中在△ABE中,利用三角形的三边关系可得2<AE<8,则1<AD<4.感悟:解题时,条件中若出现“中点”“中线”字样,可以考虑构造以中点为对称中心的中心对称图形,把分散的已知条件和所求证的结论集中到同一个三角形中.(1)问题解决:受到(1)的启发,请你证明下面命题:如图2,在△ABC中,D是BC边上的中点,DE⊥DF,DE交AB 于点E,DF交AC于点F,连接EF.①求证:BE+CF>EF;②若∠A=90°,探索线段BE、CF、EF之间的等量关系,并加以证明;(2)问题拓展:如图3,在四边形ABDC中,∠B+∠C=180°,DB=DC,∠BDC=120°,以D为顶点作一个60°角,角的两边分别交AB、AC于E、F两点,连接EF,探索线段BE、CF、EF之间的数量关系,并加以证明.BB CC图3图2图113.△ABC与△A´B´C´是两个直角边都等于4厘米的等腰直角三角形,M、N分别是直角边AC、BC的中点.△ABC位置固定,△A´B´C´按如图叠放,使斜边A´B´在直线MN上,顶点B´与点M重合.等腰直角△A´B´C´以1厘米/秒的速度沿直线MN向右平移,直到点A'与点N重合.设x秒时,△A´B´C´与△ABC 重叠部分面积为y平方厘米.(1)当△A´B´C´与△ABCA´B´C´移动的时间;(2)求y与x的函数关系式;(3)求△A´B´C´与△ABC重叠部分面积的最大值.。

全国重点高中提前招生考试语文试卷【最新】

全国重点高中提前招生考试语文试卷【最新】

全国重点高中提前招生考试语文试卷语文试题本试卷分第Ⅰ卷和第Ⅱ卷。

第Ⅰ卷1至2页,第Ⅱ卷3至8页。

考生作答时,须将答案答在答题卡上,在本次题卷、草稿纸上答题无效。

满分120分,考试时间120分钟。

考试结束后,将本试卷和答题卡一并交回。

说明:由于加点字、下划线、图表等文档格式在网页中无法完美展现,我们为你准备了精校完美doc/word文档,如有需要请点此下载第Ⅰ卷(单项选择题,共18分)注意事项:1. 选择题必须使用2B铅笔将答案标号填涂在答题卡上对应题目标号的位置上。

2. 本部分共6小题。

每小题3分,共18分。

一、基础知识。

(每小题3分,共9分)1. 下列词语中和加点字的注音完全正确的一项是( )A. 剽悍(biāo) 彷惶____狂澜(laacute;n) ____恪尽职守B. 收敛(liǎn) ____亵渎____归咎(jiugrave;) ____越俎代庖C. 惬意(qiegrave;) ____绯红____荒谬(miagrave;o) 一代天骄D. 骸骨(haacute;i) ____告磬____饶恕(sugrave;) ____断壁残垣2. 下列加点成语使用错误的一项是( )A. 近年来,泸州加快了城市化建设的步伐。

鳞次栉比的高楼大厦,风景如画的滨江大道,雄伟壮观的跨江大桥,无不彰显出酒城特有的魅力。

B. 随着光伏电站市场的开启,越来越多的非光伏企业也开始涌进这一领域。

这些具有创新意识的企业,或许将成为光伏行业的中流砥柱。

C. 理解小说中的人物形象,必须从整体入手,要紧扣文体特点,联系人物生活的环境及作者的创作意图,任何断章取义的分析都是不可取的。

D. 5月下旬,发生在广州台山市凤凰峡的漂流事故导致8名游客死亡。

事件发生后,有些部门推卸自己的管理责任,这真让人叹为观止。

3. 下列各句没有语病的一项是( )A. 今年,四川、福建等省份出台了一系列措施,拓宽渠道,为高校毕业生就业提供帮助,困难家庭的大学毕业生成为本次重点帮扶的对象。

重点高中新生提前招生语数英试卷含答案

重点高中新生提前招生语数英试卷含答案

省高中新生提前招生选拔考试语文试卷( 提示:满分120分考试时间:120分钟试卷请直接答在答题纸上)一、语言积累与运用:(24分)1、根据语境填字:(3分)青春,总在人们的qĭ( ) 盼中倏忽而逝,又在人们留恋中姗姗而来。

当心灵的帆船回sù( ) 岁月的长河时,我们能够看到:在那阳光明媚、金色的羽毛升起的地方,矗立在歌吟里、掩yìng ( ) 在诗词中,最耀眼的是那扇神奇玄妙的青春之门。

2、典故杂吟:参照示例,在对联中写出两个成语典故。

(2分)沧桑世事见天壤,唇齿衔环今古情。

缘木守株贻笑柄,枕戈尝胆赞英名。

示例:沧桑——沧海桑田①②3、根据原文默写。

(7分)①学而不思则罔,。

②,各领风骚数百年。

③人有悲欢离合,。

④,为有源头活水来。

⑤无意苦争春,。

⑥,引无数英雄竞折腰。

⑦读下面每句话,都会想起一个名句。

根据你的理解,任选其中一句,填在横线上。

(1分)陶渊明那朵菊花温暖了宁静深远的峰峦。

李白的愁情汇成了滔滔江水。

杜甫的雄心量出了泰山的高度。

刘禹锡的乐观幻化成千帆竞发、生机勃发的图景。

,4、依次填入下面一段文字中横线处的语句,与上下衔接最恰当的一组是()(3分)我花了一整天的工夫,在洱海徜徉,只为了从多个角度观察洱海,从多个层面领略洱海。

它给人许多美好的感受,给人许多浪漫的联想。

①近看,洱海是清澈的,透明的,游鱼水草,历历可数。

②灰的灵动跳跃,绿的深沉醉人。

③远眺,洱海是蔚蓝的,开阔敞亮,令人心胸豁达。

④这两种色彩是独立的,互不交融,互不渗透。

⑤从苍山看洱海,在阳光的照耀下,洱海是大片的灰白,大片的翠绿。

A.①③⑤②④ B.①⑤③④② C.①②③⑤④ D.①③②⑤④5、读下面一段话,完成题目。

(2分)①青少年正处于发育阶段,②体育锻炼能给生长骨骼的骨骺以适当刺激,⑧使骨头长得大而结实,④使人身材高大、强健。

⑤还能增强机体对疾病的抵抗力,⑥提高大脑的反应能力。

(1)标点不当的是句,修改:。

重点高中提前招生考试模拟试卷(八)

重点高中提前招生考试模拟试卷(八)

第八次物理考试姓名: 得分:一、单项选择题(每小题4分,共36分)1.现有完全相同的立方块A 和B ,将A 置于B 的正上方一起放入某液体中,物体B 正好有1/3部分高出液面,将A 取掉后,B 浸入水中部分的体积占B 体积( )(A)1/2; (B)1/3; (C)1/4; (D)1/5。

2. 已知R 1=2欧姆,R 3=5欧姆,R 2=R 4,电压表读数U 1=2.4伏特,U 2=4伏特,则电阻R 2为( )(B)4欧姆; (B)6欧姆; (C)8欧姆; (D)10欧姆。

3.如图,某装有水的容器中漂浮着一块冰,在水的表面上又覆盖着一层油.已知水面高度h 1,油面高度为h 2,则当冰熔化之后(A ) 水面高度h 1升高,油面高度h 2升高; (B ) 水面高度h 1升高,油面高度h 2降低; (C ) 水面高度h 1降低,油面高度h 2升高; (D )水面高度h 1降低,油面高度h 2降低4.如图所示,劲度系数均为k 的甲、乙两轻质弹簧,甲弹簧一端固定在天花板上,乙弹簧一端固定在水平地面上。

当在甲的另一端挂一重物G ,乙的另一端压一重物G 时,两弹簧的长度均为L ,现将两弹簧并联,并在其下方系一重物G ,此时弹簧的长度应为 ()5、将一根均匀的木棒AB ,放在支点O 上,由于OA<OB ,木棒不能保持水平,现在木棒右端截去与OA 等长的一段并置于OA 上,木棒恰好能平衡。

则OA :OB 为 ( ) (A) 12:1 (B)1:2(C)1:3 (D)1:46.如下图所示,一只弹簧测力计放在光滑的水平面上,弹簧测力计外壳质量不能忽略,弹簧及挂钩质量不计,现对弹簧测力计施加水平方向的力F 1、F 2,且F 1>F 2,则 ( )A.弹簧测力计向左运动,读数为F2B.弹簧测力计向左运动,读数为F1C.弹簧测力计向右运动,读数为F2D.弹簧测力计向左运动,读数为F1和F2之间的某一数值7.如图,固定在地面上的半圆形轨道,直径ab水平,小球P从a点正上方高H处自由下落,经过轨道后从b点冲出竖直上抛,上升的最大高度为2H3 ,空气阻力不计。

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全国重点高中提前招生考试全真试卷(八)总分:100分考试时间:90分钟姓名:一、选择题(每小题4分,共40分)1.(2015年黄冈市市重点中学自主招生试题)伽利略创造的把实验、假设和逻辑推理相结合的科学方法,有力地促进了人类科学认识的发展。

利用如图8-1所示的装置做如下实验:小球从左侧斜面上的O点由静止释放后沿斜面向下运动,并沿右侧斜面上升。

斜面上先后铺垫三种粗糙程度逐渐降低的材时,小右侧斜面上升到的最高位置依次为1、2、3。

根据三次实验结果的对比,可以得到的最直接的结论是()A.如果斜面光滑,小球将上升到与O点等高的位置B.如果小球不受力,它将一直保持匀速运动或静止状态C.如果小球受到力的作用.它的运动状态将发生改变D.小球受到的力一定时,质量越大,它的速度越小2.(2015年黄冈市重点中学自主招生试题)如图是健身用的“跑步机”示意图。

质量为m的健身者踩在与水平面成a角的静止皮带上,用力向后蹬皮带,可使皮带以速度v匀速向后运动。

若皮带在运动过程中受到脚的摩擦力为f,则在运动的过程中,下列说法中正确的是()A.f是皮带运动的阻力B.人对皮带不做功C.人对皮带要做功,其做功的功率为fvD人的重力与皮带对人的支持力是一对平衡力3.(2014年华中师大一附中高中招生试题)实验室常用的弹簧秤如图8-3所示,弹簧的一端与连接有挂钩的拉杆相连,另一端固定在外壳上的O点,外壳上固定一个圆环,外壳和圆环的重为G,拉杆和挂钩的重为G0,弹簧质量忽略不计。

现将该弹簧秤在图甲所示的位置凋零后不动,再以如图乙和图丙的两种方式固定在地面上,并分别用图样的力F0(F0>G+G0)竖直向上拉弹簧秤,则稳定后弹簧秤的读数分别为()A.乙图读数为F0-G,丙数读数为F0-G0B.乙图读数为F0-G0,丙数读数为F0-GC乙图读数为F0-G0,丙数读数为F0-2GD.乙图读数为F0-G,丙数读数为F0-2G4(2012年蚌埠二中自自主招生试题)如图8-4所示,一个木块A放在长木板B上,弹簧秤一端接A,另一端固定在墙壁上,长木板B放在水平地面上,在恒力F作用下,长木版B以速度v匀速运动,水平弹簧秤的示数为T,下列关于摩擦力的说法正确的是()A木块受到的摩擦力大小等于FB.长木板受到的摩擦力大小等于TC.若长木板以2v的速度运动时,长木板受到的摩擦力大小等于2FD.若用2F的力作用在长木板上,木块受到的摩擦力大小仍等于T5(2016华中师大一附中高中招生试题)在学习物理过程中,某同学有以下观点:○1作为载体的电磁波,频率越高,相同时间内可传输的信息越多;○2光纤通信所说的激光,在光导纤维中通过折射传播;○3太阳能、核能都属于可再生能源;○4北导航系统进行定位和导航都是利用电磁波工作的;○5物体的温度越高,所含热量越多,内能一定大;○6内能同的两物体之间可能会发生热传递;○7可见光与无线电波在真空中的传播度大小相等;○8动圈式话筒的原理是电磁感现象,电线感应是把机械能转化为电能你认为其中说法正确的是()A. ○1○3○6○7B. ○1○2○4○6○8C. ○1○3○4○5D. ○2○5○7○86.(2014年华中师大一附中高中招生)如图8-5甲所的电路中,电源电压不变,小灯泡的额定电压为2.5V,滑动变阻器的最大阻值R0为定值电阻R0的3倍。

闭合开关S,当滑片置于某点时,电压表示数为 2.5V,电流表小数为ɪ1;当滑片P置于最右端时,电流表示数为ɪ2,且ɪ1:ɪ2=5:4,两次变阻器进入电路的电阻之比R1:R2=8:15图8-5乙是该小灯泡ɪ-U图像。

则()A.滑片P置于最右端时,小灯泡的实际功率为0.4WB滑片P置于最右端时,小灯泡的实际功率为0.5WC定值电阻R0=5ΩD电源电压U=9V7.(2014年上海市重点高中提前招生试题)用普通相机拍照时,要根据物距进行“调焦”,使用起来不太便捷,有一种“傻瓜”相机,只要将景物全部纳入取最区内,不论景物的远近,都能得到比较清晰的像、从而使拍照的过程变得十分快捷。

这种傻瓜”相机不用“调焦”的奥秘是()A.采用了长焦距的镜头,使远近不同的物体成像的位置相差不大B.采用了短焦距的镜头,使远近不同的物体成像的位置相差不大C.采用了长焦距的镜头,使远近不同的物体成像的位置相同D.采用了短焦距的镜头,使远近不同的物体成像的位置相同8.(2014年上海市重点高中提前招生试题)关于家用电器,下列法中正确的是A.电路中的总电阻较大,是因为同时工作的用电器较多B.电路中的总电流较大,是因为用电器的电阻较大C.安装保险丝,是因为保险丝的电阻较大D.电炉丝热得发红,连接电炉的导线却不热,是因为电炉丝的电阻远比导线的电阻大9.(2016年枣庄自主招生)开启电风扇,对着一盆0℃水的水面吹风,过了一段时间()A.水的表面出现薄冰,温度降到0℃以下B. 水的表面出现薄冰,温度仍为0C.水不会结冰,温度也保持0℃不变D.水不会结冰,但温度要下降10.(2017年长沙自主招生)如图8-6,平面XOY上.平面镜M两端全标分别为(-1,3)和(0,3),人眼位于坐标(0,2)处,当一发光点S从坐标原点沿-x方向运动过程中,经过以下哪个区域,人眼可从平面镜中观察到S的像()A.0到-1区域B.-1到-2区域C.0到-∞区域D.-2到-4区域二、填空题(每小题6分,共24分)11. (2012年湖北黄冈中学自主招生试题)如图8-7(a)是在高速公路上用超声波测速仪测量车速的示意图。

测速仪发出并接收超声波脉冲信号,根据发出和接收到的信号间的时间差,测出被测物体的速度。

图b中p1、p2是测速仪发出的超声波,n1、n2分别是p1、p2由汽车反射回来的信号。

设测速仪匀速扫描,p1、P2之间的时间同隔△=0.8s,超声波在空气中传播的速度是340m/s,若汽车是匀速行驶的,则根据图(b)可知,图中每小格表示的时间是________s,汽车在接收到p1、p2两个信号之间的时间内前进的的距离是________m。

12. (上海市重点高中自主招生)处的温度为________13. (慈溪中学提前招生)如图所示,将光敏电阻Rg和定值电阻R0、电流表、电压表连成电路,接在电压不变的电源上.其中,定值电阻R0=8Ω,光敏电阻的阻值随光照变化的关系如表(“光照”是表示光照强弱程度的物理量,符号为E;单位是坎德拉,符号为cd),若电流表的示数增大,表明光强在________ ,电压表的示数将________ .(“增大”、“减小”或“不变”).分析表中数据可知光强E=1.8cd时,光敏电阻的阻值R=________ Ω,此时电流表的示数为0.5A,则通电1分钟R0上产生的热量为________ J.14.(蚌埠二中理科实验班招生)(1)如图8-10所示,用滑轮装置将A、B两物体悬挂,如果不计滑轮重力与摩擦,要使整个装置处于平衡,则GA=________ GB。

(2)一重为20N的薄铁皮水桶装满重力为98N的水,用手提桶并将桶浸没到大水缸中(未与缸底接触),此时手对桶的拉力为 ______N.(ρ铁=7.9×103kg/m3)三、实验探究题(每小题8分,共16分)15.(2013年芜湖县一中理科实验诳招生试题)小明看到运动员拉弓射箭时,弓拉得越弯,箭射得越远。

小明猜想:弹性势能的大小可能与物体的弹性形变有关。

(1)为验证其猜想是否正确,他设计了如下实验(弹簧被压缩后未超过其弹性限度);如图8-11所示,将同一个弹簧压缩______(填“相同”或“不同”)的长度,将小球置于弹簧的右端,松开后小球碰到同一位置的相同木块上,分析比较木块______,从而比较弹性势能的大小。

(2)若水平面绝对光滑,本实验将______(选填“能”或“不能”)达到探究目的。

(3)小明根据实验现象认为:小球推动木块移动一段距离后都要停下来,所以弹簧、小球和木块所具有的机械能最终都消灭了.你认为小明的观点是______的(选填“正确”或“错误”),理由是______.16.(2013年芜湖县一中理科实验诳招生试题)测量“小灯泡的电功率”。

小灯泡的额定电流为0.3A,灯丝阻值在10Ω~15Ω之间.所提供的器材有:电流表、电压表、电源(电压恒为6V)、开关各一个,滑动变阻器(“5Ω 2A”、“20Ω 1A”)两个,导线若干(1)如图8-12是小明没有连接完的实物电路,请你用笔画线代替导线将实物图补充完整.(2)小明选用的滑动变阻器的规格为(3)闭合开关,移动滑片,当电流表的示数为0.3A时,电压表的示数如图所示,读数为 V,小灯泡的额定功率为 W(4)小红没用电压表,但多用了一个开关,其它器材与小明的相同,也测出了小灯泡的额定功率.请在虚线框内画出她设计的电路图,并写出实验步骤及测定额定功率的表达式.实验步骤:表达式:P额=图8-12四、综合应用题(每小题10分,共20分)17.(北京市房山区重点高中选拔试题)如图8-13所示,长70cm的光滑轻质木板AB可绕支点O转动,在离支点右边0.2m的B端上方连接动滑轮,作用在绳自由端的拉力F1为4.5N;下方挂一密度为ρ,高20cm的长方形物体M,当物体M浸入水中10cm深处静止时,从装满水的溢水杯中溢出50g的水,此时杠杆水平平衡.已知ρ=8ρ水,取g=10N/kg.求:(1)物体M浸入水中10cm深处时受到的浮力;(2)物体M受到的重力;(3)若杠杆始终保持水平平衡,一质量为300g的小球从支点O以2cm/s的速度沿光滑木板向左端匀速滚动时,小球由支点O出发多长时间,作用在动滑轮绕绳自由端的拉力F2恰为0.75N?不计绳的质量和滑轮与轴之间的摩擦,B端上下细绳始终在同一竖直直线上。

图8-1318.(2016年南平一中预录试题)如图8-14所示(甲)电路,当滑动变阻器的滑片从一端滑到另一端的过程中,两电压表的读数随电流表读数的变化情况如图8-14(乙)中的AC、BC两直线表示。

求:(1)定值电阻Ro与变阻器的总电阻(2)电源的电压和电阻r阻值;(3)变阻器滑动片从一端滑到另一端的过程中,变阻器消耗的最大电功率。

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