重点中学提前招生试题卷

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重点中学提前招生语文模拟试卷

重点中学提前招生语文模拟试卷

重点中学提前招生语文模拟试卷一、基础知识及运用(20分)1.下列加点字的注音全部正确的一项是(3分)()A.峥.嵘(zhēng)偌.大(ruî)戕.害(qiāng)自怨自艾.(ài)B.怪癖.(pǐ)滂.沱(pāng)泥淖.(nào)休戚.相关(qī)C.啮噬.(shì)熨帖..(yù)坍圮.(pǐ)拾.级而上(shí)D.按捺.(nài)庇.护(bì)归咎.(jiù)远离人寰.(huán)2.下列词语书写全部正确的一项是(3分)()A.厄运甄别慰藉怨天忧人B.惊蜇暮霭斑驳入不敷出C.饿殍田塍笑魇沸反盈天D.袅娜殄灭摭拾熠熠生辉3.下列句子中加点的词语使用恰当的一项是(3分)()A.曾几何时....,他意气风发,雄心勃勃,立志要创出一番事业;而今却鬓已微星,意志消沉,整日埋怨命运不公。

B.国庆节的夜晚,空中各色礼花绽放,争奇斗艳;广场上欢歌笑语,歌舞升平....,真是一片欢乐的海洋。

C.现在很多中学生在学校里见到老师都能亲切问好,而见到烧锅炉的、打扫卫生的和食堂打饭的工人师傅,却不屑一顾....。

D.我们虽然缺乏管理经验,但可以向先进企业学习,起初可能是邯郸学步....,但终究会走出自己的路来。

4.下列句子中,没有语病的一项是(3分)()A.省政府已明确指出,廉租房可以在经济适用住房中配建,也可以在普通商品住房小区中配建,以防止低收入家庭远离城区,被边缘化的现象。

B.美国2010年调整了签证政策,规定申请留学签证的申请时间要在所申请学校开学前的3个月到2个星期内进行。

C.如何体会企业文化的深刻内涵,认识用优秀文化提升企业竞争力的重要性,是摆在每一位中国企业家面前的重要课题。

D. 中国人口多,就业需求大,推迟退休年龄固然可以缓解养老金发放的压力,但势必将要导致年轻人就业难。

5、古诗文填空(每空1分,共8分)①,不尽长江滚滚来。

初中提前招数学试卷

初中提前招数学试卷

一、选择题(每题5分,共50分)1. 下列各数中,有理数是()A. √9B. √-16C. πD. √22. 若a,b是方程2x² - 3x + 1 = 0的两个根,则a + b的值是()A. 2B. 3C. 1D. 03. 在下列函数中,是反比例函数的是()A. y = 2x + 3B. y = x² - 1C. y = 1/xD. y = 3x - 24. 下列命题中,正确的是()A. 若a > b,则a² > b²B. 若a > b,则a³ > b³C. 若a > b,则|a| > |b|D. 若a > b,则a² < b²5. 已知等差数列{an}的前三项分别是1,4,7,则该数列的通项公式是()A. an = 3n - 2B. an = 3n + 2C. an = 2n + 1D. an = 2n - 16. 若函数y = kx + b(k≠0)的图像经过点(1,3),则k的值为()A. 2B. 3C. 1/2D. 1/37. 在等腰三角形ABC中,底边BC = 8,腰AB = AC = 10,则顶角A的度数是()A. 30°B. 45°C. 60°D. 90°8. 已知一元二次方程x² - 5x + 6 = 0的两个根分别是m和n,则m² + n²的值是()A. 11B. 15C. 16D. 259. 在直角坐标系中,点P(2,3)关于y轴的对称点坐标是()A. (2,-3)B. (-2,3)C. (-2,-3)D. (2,-3)10. 下列各组数中,成等差数列的是()A. 2,5,8,11B. 3,6,9,12C. 1,3,6,10D. 4,8,12,16二、填空题(每题5分,共25分)11. 若m,n是方程2x² - 5x + 2 = 0的两个根,则m + n的值为______。

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。

重点中学提前招生考试选拔试卷

重点中学提前招生考试选拔试卷

重点中学提前招生考试选拔试卷科学考生须知:1、全卷分试题卷和答题卷二部分,所有答案必须写在答题卷上才有效,直接做在试题卷上无效,全卷满分150分,考试时间120分钟。

2、答题前,先用钢笔或圆珠笔在答题卷规定位置上填写学校、班级、姓名。

本卷可能用到的相对原子质量: H―1 O―16 C―12 S―32 N—14 Fe―56 Cu―64 Mg―24 Cl―35.5 Ba―137 Na―23 Ca—40 Zn—65一、选择题(每题2分,共50分)1.显微镜的一个目镜分别和三个不同倍数的物镜组合来观察酵母菌。

当成像清晰时,每一物镜与载玻片的距离如图所示。

如果载玻片位置不变,用哪一物镜在一个视野中看到的细胞最多()A.a B.bC.c D.一样多2.当阳光照耀你们学校时,你注意到你们学校的旗杆影子长短变化的现象了吗?其中错误的是( )A、一天中,学校的旗杆的影子是先变短再变长B、一天中,学校的旗杆的影子的变化轨道是一个半个椭圆C、一天中,学校的旗杆的影子转动方向是逆时针方向D、每天正午学校的旗杆的影子长度是不同的3.根据右上图所示分析下列说法,其中不正确的是()A.如果AB段表示肺部毛细血管,则该曲线表示氧气在血液中的含量变化B.如果右图表示血液流经肾单位,在肾单位各个结构中含氮废物的质量分数的变化曲线,则AB段是出球小动脉C.如果右图纵坐标表示萝卜的总质量,则AB段可以表示将萝卜放入清水后萝卜的质量变化D.如果AB段表示某人出现炎症,则纵坐标可以是血液中白细胞的数量变化4.据报载,有一只鸭子特别有灵性,常跟着一老太太,老太太上哪它就上哪,老太太转个身它也照着做,如影随形,亦步亦趋。

这鸭子的行为与下列哪个选项最为接近( )A.失去幼仔的母狗会给幼虎喂奶 B.蜜蜂朝有花香的地方飞C.孔雀开屏、仙鹤起舞 D.听到饲养员的叫声,小鸡会过来啄食5.如图所示,描述正确的是()A.a、b、c三地同处在东半球,b在a的正北方向B.a、b、c三地同处在南半球,c在b的正西方向C.a、b、c同处在西半球,c在a的东北方向D.a、b、c同处在西半球和北半球6.在广场上游玩时,小明将一充有氢气的气球系于一辆玩具小汽车上,并将玩具小汽车放置在光滑的水平地面上。

省重点高中高一新生提前招生考试数学试卷及答案(共5份)

省重点高中高一新生提前招生考试数学试卷及答案(共5份)

18.解:按颜色把 8 个扇形分为红 1、绿 1、黄 1、红 2、绿 2、黄 2、绿 3、黄
3,所有可能结果的总数为 8。
( 1)指针指向红色可能结果为
21
2,∴ P(指针指向红色) =

84
( 2)指针指向黄色或绿色可能结果为
6,∴ P(指针指向黄色或绿色)
63
=

84
a2 4
1
a2a2 a3
19.解:
2
3 m2
=
4
x1
x 2 ቤተ መጻሕፍቲ ባይዱ即
9 m 4 = 3 m 2。解之得
16
4
此时
3m2 4
2
32 3
43
1 。 点 C 的坐标为
OC 1。
m 2 3。 3
0, 1 。
又 x2
2
x1
2
x1 x2
4 x1 x2
2
m4
3 m2 4
4 m 2,
m > 0 , x 2 x1
2m 4 3 ,即 AB 3
4 3。 3
1
∴ ∠PDF= ∠ DFA= ∠ DFP。∴ PD=PF。
∴ PA=PF。即 P 是线段 AF 的中点。
( 3)∵∠ DAF= ∠DBA ,∠ ADB= ∠ FDA ,∴△ FDA ∽△ ADB 。
AD AF


DB AB
15
AD AF ∴在△ ADB 中, tan ABD
2
3 。
DB AB 10 4
D. 12 3
10.二次函教 y x2 2x 5 有
A .最大值 5 B.最小值 5 C.最大值 6 D .最小值 6

重点高中提前招生考试语数英试卷附答案

重点高中提前招生考试语数英试卷附答案

省高中新生提前招生选拔考试语文试卷亲爱的同学们,语文试卷分试题卷和答题卷二部分,所有答案必须写在答题卷上才有效,直接做在试题卷上无效,全卷满分120分,考试时间120分钟一、积累与运用(25分)1、古诗文默写。

(10分)①池上碧苔三四点,。

②,长河落日圆。

③天街小雨润如酥,。

④和谐是什么?和谐是陶渊明“衣沾不足惜,”的淳朴;和谐是白居易“几处早莺争暖树,”的生机;和谐是李白的“,惟见长江天际流”的真诚……和谐原来就是一种感觉,人人都生活在阳光之下的感觉!⑤杜甫《茅屋为秋风所破歌》表现崇高理想与兼济天下的济世情怀的句子是“,”。

⑥愁与恨之类,原是一种抽象的情意,看不见,摸不着。

李清照的《武陵春》化虚为家,语意新奇,描摹愁思的绝妙佳句是“,”。

2、根据拼音写汉字.快乐的人是会演奏快乐的。

演奏快乐,就是品味快乐。

不论是巍峨雄壮的高山,广mào()无垠的大海,云彩飘飘的蓝天,还是qìn()人心脾的气味,绚丽斑斓的色彩,感人肺腑的话语。

这些如宝石一般晶yíng()璀璨的快乐总是在我们身边盘旋。

3、下列句子中加点的成语使用不正确的一项是()(2分)A.奥本海默和邓稼先分别是美国和中国原子弹设计的领导人,各是两国的功臣,可是他们的性格和为人却截然不同....。

B.我以前在信中和你提过感情的创伤,就是要你把这些事当做心灵的灰烬看,看的时候当然不免感触万端,但不要刻骨铭心....地伤害自己,而要像对着古战场一般的存着凭吊的心怀。

C.他们熟悉那地下的世界,在迷宫般的坑道中探索道路,指导或是了解或是参与地下的工作,并乐此不疲....,甚至忘记了岁月是怎样逝去的。

D.设计者和匠师们因地制宜,别有用心....,修建成功的园林当然各个不同。

4、提炼下面这段话的主要信息。

(2分)日本科学家发现,打鼾严重者在睡眠时会出现呼吸间歇的现象,从而对其脑白质造成损伤,影响大脑功能。

科学家检测了打鼾者睡眠时大脑皮层和皮层内侧的脑白质。

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。

2023年全国重点高中提前招生数学考试全真试卷1

2023年全国重点高中提前招生数学考试全真试卷1

重点高中招生试卷1一、选择题(每小题5分,共30分) 1.设3232-++=a ,则aa 1+的整数部分为( ) A.2 B.3 C.4 D.52.如图,在边长为1的正方形ABCD 中,E 、F 分别为线段AB 、AD 上的动点,若EF 为折线翻折,A 点落在正方形ABCD 所在A '点的位置,那么A '所有可能位置形成的区域面积为( )A.21B.4πC.12-D.12-π 3.正整数构成的数列 ,,,,21n a a a ,满足:①数列递增,即<<<<n a a a 21;②21--+=n n n a a a (3≥n ),则称为“类斐波拉契数列”.例如: ,29,18,11,7,4,3,则满足595=a 的“类斐波拉契数列”有( )A.1种B.2种C.3种D.4种 4.如图,已知梯形ABCO 的底边AO 在x 轴上,BC//AO ,AB ⊥AO ,过点C 的双曲线x ky =交OB 于D ,且OD:DB=1:2,若△OBC 的面积等于3,则k 的值为( )A.2B.43C.524D.无法确定 5.如图,在等边△ABC 中,M ,N 分别是边AB ,AC 的中点,D 为MN 上任意一点,BD ,CD 的延长线分别交AC ,AB 于点E ,F.若3111=+BF CE ,则△ABC 的边长为( )A.12B.9C.6D.36.如图,已知抛物线12+-=x y 的顶点为P ,点A 是第一象限内该二次函数图像上一点,过点A 作x 轴的平行线交二次函数图像于点B ,分别过点B 、A 作x 轴的垂线,垂足分别为C 、D ,连接PA 、PD ,PD 交AB 于点E ,则△PAD 与△PEA( )A.始终不相似 B 始终相似 C.只有AB=AD 时相似 D.无法确定二、填空题(每小题5分,共30分)7.关于x ,y 的方程组⎪⎩⎪⎨⎧==+-1x y y x yx y x 的解是________ 8.已知2)2(2013)2(3-=-+-x x ,2)2(2013)2(3=-+-y y ,则y x +=_______9.若关于x 的方程0)6)(4(2=+--m x x x 的三个根恰好可以组成某直角三角形的三边长,则m=___________10.如图,矩形ABCD 中,AB=10,BC=12,M 为AB 中点,N 为BC 边上一动点,将△MNB 沿MN 折叠,得到'MNB ∆,则'CB 的最小值为 11.在平面四边形ABCD 中,∠A=∠B=∠C=75°,BC=2,则AD 的取值范围是__________12.如图,△ABC 中,,8,53sin ,90==︒=∠AC A ACB 将△ABC 绕点C 顺时针旋转90°,得到C B A ''∆,P 为线段''B A 上的动点,以点P 为圆心,'PA 长为半径作⊙P ,当⊙P 与△ABC 的边相切时,⊙P 的半径为三、解答题(每小题12分,共60分)13.已知1x ,2x 是方程02)12(22=+++-k x k x 的两个实数根,试求2221)2()2(-+-x x 的最小值14.如图,在平面直角坐标系中已知四边形ABCD 为菱形,且A(0,3),B(-4,0)(1)求过点C 的反比例函数表达式;(2)设直线l 与(1)中所求函数图象相切,且与x 轴,y 轴的交点分别为M ,N ,O 为坐标原点. 求证:△OMN 的面积为定值.15.如图,在边长为1的正方形ABCD 中,以点A 为圆心,AB 为半径作圆,E 是BC 边上的一个动点(不运动至B ,C),过点E 作弧BD 的切线EF ,交CD 于F ,H 是切点,过点E 作EG ⊥EF ,交AB 于点G ,连接AE. (1)求证:△AGE 是等腰三角形;(2)设BE=x ,△BGE 与△CEF 的面积比y S S CEF BGE =∆∆,求y 关于x 的函数关系式,并写出自变量x 的取值范围; (3)在BC 边上(点B ,C 除外)是否存在一点E ,使得GE=EF ,若存在,求出此时BE 的长,若不存在,请说明理由.16.如图1是实验室中的一种摆动装置,BC 在地面上,支架ABC 是底边为BC 的等腰直角三角形,BC=10,摆动臂AD 可绕点A 旋转,AD=2 (1)在旋转过程中,①当A ,D ,B 三点同一直线上的,求BD 的长; ②当A ,D ,B 三点为同一直角三角形的顶点时,求BD 的长;(2)若摆动臂AD 顺时针旋转90°,点D 的位置由△ABC 外的点1D 转到其内的点2D 处,如图2,此时C AD 1∠=135°,2CD =1,求2BD (3)如图3,若连接(2)中的21D D ,将(2)中21D AD ∆的形状和大小保持不变,把21D AD ∆绕点A 在平面内自由旋转,分别取21D D ,2CD ,BC 的中点M ,P ,N ,连接MP ,PN ,NM ,M 随着21D AD ∆绕点A 在平面内自由旋转,△MPN 的面积是否发生变化,若不变,请直接写出△MPN 的面积;若变化,△MPN 的面积是否存在最大与最小?若存在,请直接写出△MPN 面积的最大与最小值.17.如图,已知抛物线c bx x y 222++=(bc 是常数,且c<0)与x 轴分别交于点AB(点A 位于点B 的左侧),与y 轴的负半轴交于点C ,点A 的坐标为)0,1(-.(1)点B 的坐标为(结果用含c 的代数式表示); (2)连接BC ,过点A 作直线AE//BC ,与抛物线c bx x y 222++=交于点E ,点D 是x 轴上的一点,其坐标为(2,0). 当C ,D ,E 三点在同一直线上时,求抛物线的解析式;(3)在(2)条件下,点P 是x 轴下方的抛物线上的一个动点,连接PB ,PC ,设所得△PBC 的面积为S. ①求S 的取值范围;②若∆PBC 的面积S 为整数,则这样的∆PBC 共有____个。

重点初中提前招生试卷数学

重点初中提前招生试卷数学

一、选择题(每题5分,共25分)1. 下列数中,质数是:A. 16B. 17C. 18D. 192. 若a,b,c是等差数列,且a+b+c=15,a+c=10,则b的值为:A. 5B. 6C. 7D. 83. 已知函数f(x) = 2x - 3,若f(2x+1) = 5,则x的值为:A. 2B. 3C. 4D. 54. 在△ABC中,若∠A=60°,∠B=45°,则∠C的度数为:A. 45°B. 60°C. 75°D. 90°5. 已知直线l的方程为2x+3y-6=0,点P(1,2)到直线l的距离为:A. 1B. 2C. 3D. 4二、填空题(每题5分,共25分)6. 若一个数的平方根是2,则这个数是_______。

7. 已知等差数列的前三项分别为1,3,5,则第10项是_______。

8. 函数y=3x+2的图像与x轴的交点坐标是_______。

9. 在△ABC中,若a=3,b=4,c=5,则△ABC是_______三角形。

10. 已知直线l的方程为x-2y+1=0,则直线l的斜率为_______。

三、解答题(每题10分,共30分)11. (10分)已知数列{an}的前n项和为Sn,且满足an = 3an-1 + 2,a1 = 1。

求第10项an。

12. (10分)已知函数f(x) = ax^2 + bx + c,其中a,b,c是常数。

若f(1) = 3,f(2) = 7,f(3) = 11,求a,b,c的值。

13. (10分)在平面直角坐标系中,点A(2,3),点B(4,1),点C在直线y=x上,且三角形ABC的周长最小。

求点C的坐标。

四、附加题(20分)14. (10分)已知等差数列{an}的前n项和为Sn,且满足an = 2an-1 + 1,a1 = 1。

求Sn的表达式。

15. (10分)已知函数f(x) = ax^2 + bx + c,其中a,b,c是常数。

(十八)全国重点高中提前招生考试全真卷

(十八)全国重点高中提前招生考试全真卷
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B。 S=30

中考提前招生数学试卷

中考提前招生数学试卷

一、选择题(每题4分,共40分)1. 下列各数中,有理数是()A. √9B. πC. √-4D. 2/32. 如果a=3,b=-2,那么a-b的值是()A. 1B. -1C. 5D. -53. 下列方程中,无解的是()A. 2x + 5 = 0B. 3x - 6 = 0C. 5x - 15 = 0D. x^2 - 1 = 04. 在等腰三角形ABC中,AB=AC,若∠B=40°,则∠C的度数是()A. 40°B. 50°C. 60°D. 70°5. 下列函数中,y与x成反比例关系的是()A. y = 2x + 3B. y = 3/xC. y = 3x^2D. y = x^36. 若a、b、c是等差数列,且a+b+c=12,a+c=8,则b的值为()A. 2B. 4C. 6D. 87. 在平面直角坐标系中,点P(2,3)关于原点的对称点是()A. (2,3)B. (-2,-3)C. (2,-3)D. (-2,3)8. 下列图形中,不是轴对称图形的是()A. 正方形B. 等边三角形C. 长方形D. 梯形9. 若等比数列的首项为2,公比为3,则该数列的前5项和为()A. 124B. 153C. 189D. 24310. 下列命题中,正确的是()A. 平行四边形一定是矩形B. 相似三角形一定是全等三角形C. 对角线相等的四边形一定是菱形D. 对角线互相平分的四边形一定是平行四边形二、填空题(每题4分,共40分)11. 若a=5,b=-3,则a^2 + b^2 = ________。

12. 等差数列的前三项分别为3,5,7,则第10项是 ________。

13. 若二次函数y=ax^2+bx+c的图象开口向上,且顶点坐标为(-1,2),则a________(填“>0”或“<0”)。

14. 在平面直角坐标系中,点A(1,2),点B(-3,4),则线段AB的中点坐标是________。

重点中学提前招生科学选拔试卷

重点中学提前招生科学选拔试卷

重点中学提前招生科学选拔试卷(本卷考试时间60分钟,满分90分)本卷中可能用到的相对原子质量:H:1 Cu:64 O:16 S:32 Fe:56 Cl:35.5 C:12 Ca:40一、选择题(共45分,每小题3分,每小题只有一个正确答案)1.地球上含量最丰富的元素是氧,宇宙中最丰富的元素是()(A)氡(B)氮(C)氧(D)氢2.某CuSO4溶液的质量分数是10%,该CuSO4溶液中Cu2+与水分子的个数比为()(A)1:9 (B)1:25 (C)1:40 (D)1:803.关于冰醋酸的下列说法中正确的是()①属于纯净物②属于混合物③属于有机物④属于一元酸⑤属于多元酸(A)①③④(B)②③⑤(C)①③⑤(D)②③④4.从混有少量食盐的硝酸钾晶体中,提取较纯的硝酸钾,可供选择的实验步骤和结论有:①在较高温度下制取该晶体的饱和溶液;②在较低温度下制取该晶体的饱和溶液;③升高溶液温度;④降低溶液温度;⑤过滤,得到的晶体即是较纯的硝酸钾;⑥过滤,硝酸钾主要存在于母液中。

正确的操作步骤和结论是()(A)①④⑥(B)①④⑤ (C)②③⑥ (D)②③⑤5.下列各组物质相互反应后,溶液的总质量比反应前溶液的总质量减少了的是()①Fe跟稀H2SO4反应②CuO与稀HCl反应③K2CO3溶液跟澄清石灰水反应④Fe跟CuSO4溶液的反应⑤NaOH溶液和H2SO4溶液反应(A)①③(B)②④ (C)③④ (D)③⑤6. 将筷子竖直插入装水的玻璃杯内,从俯视图中的P点沿水平方向看到的应该是下面哪个图中的情形?7.在AgNO3和Cu(NO3)2的混合液中,加入一定量的铁粉,充分反应后发现有少量金属析出,取上层清液滴加盐酸,有白色沉淀生成,下列说法正确的是()(A)有Ag析出,滤液中有Fe2+、Cu2+、 Ag+存在(B)有Ag析出,滤液中Fe2+、 Cu2+存在(C)有Ag Cu析出,滤液中有Fe2+、 Cu2+、Ag+存在有Ag Cu析出,滤液中有Fe2+、Ag+存在8.某种家用照明灯的控制开关上有一个指示灯,照明灯熄灭后,由指示灯发出的微弱光能指示照明灯控制开关位置,当照明灯发光时,发现这个指示灯是不发光的,那么下列说法中正确的是()(A)照明灯与指示灯是串联的(B) 控制开关与指示灯是串联的(C) 照明灯与指示灯是并联的(D) 控制开关与指示灯是并联的9.如果在冷天里睡在地上,而只有三张相同的毡子,这三张毡子分配的最佳方案是()(A)全部盖在身上;(B)全部盖在地上;(C)一张垫在地上,两张盖在身上;(D)两张垫在地上,一张盖在身上。

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。

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:。

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2010年德清县四校联合自主招生提前考试模拟试卷科 学考生须知:1.本卷满分为120分,考试时间为90分钟。

2.请将答案用黑色字迹钢笔或签字笔写在答题卷的相应位置上,写在试题卷上无效。

3.本卷可能用到的数据:g =10牛/千克相对原子质量:H —1 O —16 Na —23 S —32 Ba —137 Cl —35.5一、选择题(本题共有20小题,每小题2分,共40分。

每小题只有一个选项是正确的,不选、多选、错选均不给分)1. 在科学中以 “单位时间内物体通过路程的多少..............”来描述物体运动快慢的,而在文学作品中常常用一些成语来描述物体运动的快慢,下面成语中与科学描述运动快慢的方法最.相近..的是 A .离弦之箭 B .风弛电擎 C .一日千里 D .姗姗来迟2. 在下图中,能够合理表示小麦种子萌发时胚乳(实线)与胚(虚线)中有机物含量变化的A B C D3.如图有一竖直放置的大凸透镜,在主光轴位置上拉一根钢丝,一个小杂技演员从很远的地方沿着钢丝向焦点处匀速走来。

下列叙述中:①小演员每走一步,像也走一步;②像的脚步始终比小演员的脚步大;③像大时脚步大,像小时脚步小,即“大像”走大步,“小像”走小步;④像总朝远离小演员的方向运动,好像在逃离。

其中正确的是A .只有①②正确B .只有①②④正确C .只有①③④正确D .只有③④正确4. 在配制一定质量分数的氯化钠溶液时,下列出现的操作失误,会引起所配溶液的溶质质量分数降低的是A. 用托盘天平称量氯化钠时,将砝码放在左盘,但未使用游码B. 用量筒量取蒸馏水读数时,仰视凹液面的最低处C. 将量筒中的水倒入烧杯时,量筒中有少量水残余D. 将配好的氯化钠溶液转移到细口瓶中时,不慎洒出部分溶液5. 唾液淀粉酶随食物进入胃,而胃蛋白酶进入小肠,则下列说法正确的是A .唾液淀粉酶进入胃后,能继续消化淀粉 幼叶变绿 幼叶变绿 幼叶变绿 幼叶变绿B .唾液淀粉酶和胃蛋白酶都将最终在小肠内被分解成氨基酸后吸收C .唾液淀粉酶和胃蛋白酶都会随粪便排出体外D .胃蛋白酶进入小肠后,能继续催化分解蛋白质6. 学校天文馆里陈列的一张珍贵图片(右图),这是学校“蓝天”科技小组的同学们拍摄到的太阳系某行星凌日天文奇观照片,此图可能是下列哪组情况A.水星凌日或金星凌日B.水星凌日或火星凌日C.金星凌日或火星凌日D.木星凌日或土星凌日7. 如图所示电路中,电源电压保持不变。

闭合开关S 后,电路正常工作。

过了一会儿,两个电表的示数均变大,则下列判断中正确的是A .电阻R 可能短路,灯L 变亮B .灯L 断路C .电阻R 一定断路,灯L 变暗D .灯L 短路8. 在一定温度下,一定量的Ca(OH)2饱和溶液中,加入少量的CaO 并维持温度不变,则下列说法中正确的是A. 溶液中Ca(OH)2质量分数增大B. 溶液中Ca(OH)2质量分数减小C. 溶液中的Ca 2+总数减少D.溶液中的Ca 2+总数增加 9. 传染病是由病原体侵入人体而引起的,天花是一种烈性传染病,曾严重危害人类。

下列对传染病的叙述中错误..的有几项 ①传染病的病原体可以经过一定的途径,从病人、其他动物或带有病原体的物体传染给健康人,这表明传染病具有流行性②人类发现了接种牛痘可以预防天花,这种措施实际上是控制传染源③接种牛痘可预防天花,得过天花病愈后不会再得天花,这两者都属于特异性免疫 ④经过许多年的努力,天花病毒已得到了彻底控制,所以对现在出生的孩子已不再接种牛痘,但现在出生的孩子仍然不具有抵抗天花的免疫力A. 一项B. 二项C. 三项D. 四项10.密闭容器内有A 、B 、C 、D 四种物质,在一定条件下充分反应,测得反应前后各物质的质量如下:下列说法正确的是A .物质C 一定是化合物,物质D 可能是单质物 质 A B C D 反应前质量/g 19.7 8.7 31.6 O.4 反应后质量/g 待测17.4 0 3.6点燃B .物质A 与物质C 的相对分子质量之比为197∶316C .反应过程中,物质B 与物质D 变化的质量比为87∶36D .反应后密闭容器中A 的质量为19.7g11. 有两个电路元件A 和B ,流过元件的电流与其两端电压的关系如图(甲)所示。

把它们串联在电路中,如图(乙)所示。

闭合开关S ,这时电流表的示数为0.4A ,则电源电压和元件B 的电功率分别是A. 2.0V ,0.8 WB. 2.5V ,1.0WC. 4.5V ,1.0 WD. 4.5V ,1.8W12. 北京奥运会主体育场的外形像鸟巢。

硼烷的结构也像鸟巢,故称为巢式硼烷。

五硼烷(B 5H 9)为传统火箭燃料,燃烧产物对环境污染小。

下图是三种巢式硼烷,下列说法正确的是A .图中M 的名称为九硼烷B .八硼烷的化学式为B 8H 10C .硼烷有可能未来的清洁能源D .2B 5H 9 + 12O 2 === 5X + 9H 2O ,则X 中B 的化合价为+5价13.某同学从科学资料中得知:“植株上的幼叶能合成生长素,防止叶柄脱落”。

为了验证这一结论,该同学利用右图所示的植株进行了如下实验:①选取同种生长状况相同的植株3株,分别编号为甲株、乙株、丙株,②将3株全部保留顶芽,③将3株全部去掉顶芽,④将去掉叶片的甲、乙两株叶柄横断面均涂上一定浓度的生长素,⑤将甲、乙两株去掉叶片,保留叶柄,并在甲株的叶柄横断面涂上一定浓度的生长素,丙株保留幼叶,⑥观察3株植株叶柄脱落情况。

其中正确的步骤是A .①③④⑥B .①②④⑥C .①③⑤⑥D .①②⑤⑥ 14.小张把绘制好的学校周边等高线地形图与地图册中的浙江省地形图、中国地形图、世界地形图做了比较,他发现学校周边等高线地形图比其它三幅图的图幅面积略大,据此可以认定:①学校周边等高线地形图的比例尺最大 ②学校周边等高线地形图的比例尺最小 ③学校周边等高线地形图表示的范围最大 ④学校周边等高线地形图表示的范围最小。

上述四种结论中正确的是A .①③B .①④C .②③D .②④15.一般情况下,用电器的实际工作电压并不等于它的额定电压,家庭里通常不备有电压表,但借助电能表和秒表可以近似测出用电器的实际工作电压。

现在电路中只接入一个电热水壶,壶的铭牌和电能表的铭牌如图所示,测得电能表的转盘转过100转的时间是121秒。

(设电热水壶的电热丝电阻不变)则电热水壶的实际工作电压是A. 200VB. 210VC. 190VD. 220V16. 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。

室温时,向146克溶质质量分数为10%的盐酸溶液中分别加入两种金属M、N,先加入0.1mol的金属M,反应完毕后再加入0.2mol的金属N,则下列四组所加入选项 A B C DM Na Na Al MgN Al Mg Na Na17.同学们在学习光现象过程中有许多说法,我们从中选出四种:①光年是一个非常大的时间单位;②“坐井观天,所见甚小”隐含了光的直线传播原理;③平静湖面上的“倒影”,说明平面镜成“与物等大正立的像”的规律不成立;④透过书桌上的玻璃板看玻璃板下面的字,看到的是字的虚像。

对这些说法正误的判断,正确的是A.①②③④都正确 B.①②④正确,③错误C.②③正确,①④错误 D.②④正确,①③错误18. 人的体温是由“下丘脑”中特殊神经细胞控制的,它对人体体温的变化很敏感。

脑温度高于37℃时,人体散热机制(如血管舒张、出汗等)就会活跃起来。

已知37℃时蒸发18克汗水所需要的能量为4320J。

某同学步行时,每秒钟体内产生的热量为35J,而此时该同学通过对流、辐射等方式(不包括出汗)产生的散热功率只有33W。

因此还要通过出汗的方式才能保持37℃的体温不变。

那么该同学步行1h出汗约A、20gB、30gC、40gD、50g19.将10%的氨水与20%的氨水等体积..混合时溶质质量分数A.15% B.>15% C.<15% D.上述情况均可能20.右图是两组物质之间在一定的条件下相互转化的过程。

下列说法不正..确的是A.物质X是O2B.绿色植物通过光合作用,将太阳能转化成化学能C.C6H12O6是有机物D.C6H12O6与X反应生成CO2和H2O属于置换反应甲 乙 二、简答题(本题共有10小题,20空格,每空格2分,共34分)21.关于植物生长素,达尔文、温特等科学家相继进行了长期的具体研究。

小研同学对植物生长素非常有研究兴趣,设计了如下的实验:实验假设:如果胚芽鞘的尖端能产生生长素,则能影响胚芽鞘下端的生长。

实验材料:小麦胚芽鞘、刀片、琼脂薄片若干实验设计:见实验设计示意图实验结论:上述实验假设成立。

有同学认为实验设计示意图不完善,缺少的是 ▲ ,你的具体改进是 ▲ 。

22.课堂上同学们利用甲图装置做过氧化氢分解实验时,带火星的木条很难复燃,于是老师加了一个U 形管,如乙图,带火星的木条较易复燃。

请回答: (1)改用乙装置后能使带火星的木条复燃的原因可能是 ▲ 。

(2)根据(1)中推测的原因,要使制取的氧气能使带火星的木条复燃,可如何改进装置?(用文字叙述改进装置的名称及位置) ▲ 。

23.如图所示,体积为1×10-3m 3,材料相同的两个金属球,分别连接在弹簧的一端,弹簧的另一端固定在容器的底部。

甲图装置内是水,弹簧对球向上的弹力为79N ,乙图装置内是某种液体,弹簧对球向上弹力为81N ,则该种液体的密度为 ▲ kg/m 3(g 取10N/kg )。

设想从某一天起,地球的引力减为一半,则甲图中的弹簧对物体的弹力 ▲ (弹簧处于压缩状态)(填“不变”、“减小一半”或“增加两倍”)。

24.2008年5月12日14时28分,四川省汶川县(约31ºN ,103ºE )境内发生了8.0级强烈地震,震区房屋建筑几乎全部夷为平地,桥梁坍塌,山体滑坡使交通、通讯中断。

据此并结合图回答:(1)地震发生后,全国军民即刻投入了抗震救灾的战斗。

烟台(约37ºN ,120ºE )某水电暖安装企业在得知地震消息后,马上组织自己的员工,开着装满安装工具和日用食品的汽车,日夜兼程,奔赴汶川,参加供水设施的抢修。

这支由志愿者组成的抢修队伍从烟台出发奔向汶川的行进方向大致是 ▲ 。

甲 乙 带火星 的木条 5%的过氧化氢溶液 5%的过氧化氢溶液 带火星 的木条 水(2)在抗震救灾的日子里,邛崃山(海拔3000米以上)以东的四川盆地及灾区几乎每天雨雾不断,给救灾飞机的起降造成严重困难,但此时期邛崃山以西却是晴空万里。

这种山脉东西阴阳两重天的现象产生的原因是什么? ▲25.李明同学放学回家,正碰上刮风下雨,他以18千米/时的速度由西向东快跑,此时他发现了奇怪的现象,雨滴成竖直下落状态,请你确定,这时刮的是▲风,风速是▲米/秒。

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