2012广州二模及答案
- 格式:doc
- 大小:75.00 KB
- 文档页数:8
2012广州高二数学学业水平模拟卷及答案(75中提供)2012年广州市高二数学学业水平测试模拟(75中提供)本试卷共4页,共20小题,满分150分。
考试用时120分钟。
一、选择题:本大题共10小题,每题5分,共50分.每小题只有一项是符合题目要求的.1.已知U={2,3,4,5,6,7},M={3,4,5,7},N={2,4,5,6},则A.M∩N={4,6}B.M∪N=UC.(CuN)∪M=UD.(CuM)∩N=N2.已知向量,向量,且,则实数等于A.B.C.D.3.如图,样本数为的四组数据,它们的平均数都是,频率条形图如下,则标准差最大的一组是4.已知等差数列的前13项之和为,则等于....5.已知函数,给出下列四个命题:①若,则②的最小正周期是③在区间上是增函数④的图象关于直线对称其中真命题是.①②④.①③.②③.③④6.若过点A(3,0)的直线l与曲线有公共点,则直线l斜率的取值范围为A.(,)B.,]C.(,)D.,]7.已知函数的零点依次为,则A.B.C.D.8.用单位立方块搭一个几何体,使它的主视图和俯视图如右图所示,则它的体积的最小值与最大值分别为A.与B.与C.与D.与9.函数的图象大致是..10.如图,一只蚂蚁在边长分别为3,4,5的三角形区域内随机爬行,则其恰在离三个顶点距离都大于1的地方的概率为()A、B、1-C、1-D、1-二、填空题:本大题共5小题,考生作答4小题,每小题5分,满分20分.11.已知函数满足,,则=.12.记等比数列{an}的前n项和为Sn,若S3=2,S6=18,则等于_________.13.为了了解“预防禽流感疫苗”的使用情况,某市卫生部门对本地区5月份至7月份使用疫苗的所有养鸡场进行了调查,根据下列图表提供的信息,可以得出这三个月本地区平均每月注射了疫苗的鸡的数量为____万只.14.已知某算法的流程图如图所示,若将输出的(x,y)值依次记为(x1,y1),(x2,y2),……(xn,yn),……(1)若程序运行中输出的一个数组是(,t),则t=;(2)程序结束时,共输出(x,y)的组数为.三、解答题:本大题共6小题,共80分.解答应写出文字说明、证明过程或演算步骤.15.(本小题满分12分)已知函数的部分图象如图所示.(Ⅰ)求函数的解析式;(Ⅱ)如何由函数的图象通过适当的变换得到函数的图象,写出变换过程.16.(本小题满分12分)有两个不透明的箱子,每个箱子都装有4个完全相同的小球,球上分别标有数字1、2、3、4.(Ⅰ)甲从其中一个箱子中摸出一个球,乙从另一个箱子摸出一个球,谁摸出的球上标的数字大谁就获胜(若数字相同则为平局),求甲获胜的概率;(Ⅱ)摸球方法与(Ⅰ)同,若规定:两人摸到的球上所标数字相同甲获胜,所标数字不相同则乙获胜,这样规定公平吗?17.(本小题满分14分)如图,平行四边形中,,,且,正方形和平面成直二面角,是的中点.(Ⅰ)求证:;(Ⅱ)求证:平面;(Ⅲ)求三棱锥的体积.18.(本小题满分14分)某自来水厂的蓄水池存有400吨水,水厂每小时可向蓄水池中注水60吨,同时蓄水池又向居民小区不间断供水,小时内供水总量为吨,(). (Ⅰ)从供水开始到第几小时时,蓄水池中的存水量最少?最少水量是多少吨?(Ⅱ)若蓄水池中水量少于80吨时,就会出现供水紧张现象,请问:在一天的24小时内,有几小时出现供水紧张现象.19.(本小题满分14分)已知平面区域恰好被面积最小的圆及其内部所覆盖.(1)试求圆的方程.(2)若斜率为1的直线与圆C交于不同两点满足,求直线的方程.20.(本小题满分14分)已知二次函数同时满足:①不等式≤0的解集有且只有一个元素;②在定义域内存在,使得不等式成立,设数列{}的前项和.(Ⅰ)求函数的表达式;(Ⅱ)求数列{}的通项公式;(Ⅲ)设各项均不为0的数列{}中,所有满足的整数的个数称为这个数列{}的变号数,令(),求数列{}的变号数.高二数学学业水平测试模拟参考答案及评分意见一、选择题(本大题共10小题,每小题5分,共50分)1.B2.B3.D4.B5.D6.D7.A8.9.B10.D二、填空题(本大题共4小题,每小题5分,共20分)11.12.3313.9014.,1005三、解答题(本大题共6小题,共80分)15.(本小题满分12分)解:(Ⅰ)由图象知的最小正周期,故……3分将点代入的解析式得,又,∴故函数的解析式为……6分(Ⅱ)变换过程如下:另解:……12分以上每一个变换过程均为3分.16.(本小题满分12分)解:(Ⅰ)用(表示甲摸到的数字,表示乙摸到的数字)表示甲、乙各摸一球构成的基本事件,则基本事件有:、、、、、、、、、、、、、、、,共16个;------------------------------------------------------3分设:甲获胜的的事件为A,则事件A包含的基本事件有:、、、、、,共有6个;则------------------------------5分------------------------------6分(Ⅱ)设:甲获胜的的事件为B,乙获胜的的事件为C;事件B所包含的基本事件有:、、、,共有4个;则-------------------------8分----------------------10分,所以这样规定不公平.-----------------11分答:(Ⅰ)甲获胜的概率为;(Ⅱ)这样规定不公平.-----------------------12分17.(本小题满分14分)(Ⅰ)证明:平面平面,交线为∴----------2分∴又∴--------4分(Ⅱ)证明:连结,则是的中点∴中,---------------6分又∴∴平面-------------8分(Ⅲ)解:设中边上的高为依题意:∴即:点到平面的距离为---------------10分∴-----------------14分18.(本小题满分14分)解:(Ⅰ)设小时后蓄水池中的水量为吨,则;…………………………………3分令=;则且,∴;………………5分∴当,即时,,即从供水开始到第6小时时,蓄水池水量最少,只有40吨 (8)分(Ⅱ)依题意,得,……………11分解得,即,;即由,所以每天约有8小时供水紧张.………………………14分19.(本小题满分14分)解:(1)由题意知此平面区域表示的是以构成的三角形及其内部,且△是直角三角形,所以覆盖它的且面积最小的圆是其外接圆,故圆心是(2,1),半径是,所以圆的方程是.……………………………………(7分)(2)设直线的方程是:.因为,所以圆心到直线的距离是,即解得:.……………………………………(10分)所以直线的方程是:.……………………………………(14分)20.(本小题满分14分)解:(Ⅰ)∵不等式≤0的解集有且只有一个元素∴解得或------------------------2分当时,函数在递增,不满足条件②当时,函数在(0,2)上递减,满足条件②综上得,即---------------------5分(Ⅱ)由(Ⅰ)知当时,当≥2时==∴--------------------------------------------9分(Ⅲ)由题设可得----------------------------11分∵,,∴,都满足∵当≥3时,即当≥3时,数列{}递增,∵,由,可知满足∴数列{}的变号数为3.----------------------------------------14分如上各题若有其它解法,请评卷老师酌情给分.。
文科综合历史测试题12.两汉时期流行一句谚语:“遗子黄金满毓(竹笼),不如一经。
”这句谚语反映了当时A.科举取士深入人心B.儒家思想备受重视C.商品经济发展迅猛D.重农抑商思想严重13.与宋元时期相比,明清时期中国瓷器输出的范围更广,规模更大。
这一变化主要是由于A.制瓷技术进步B.明清政府放宽了对外贸易的限制C.新航路的开辟D.中国资本主义萌芽的产生和发展14.在史学研究中,不能对历史问题轻率地下结论。
主要是因为A.历史史实是不断发展变化的B.历史问题的本质是不可能被揭示的C.不同研究者对历史问题的认识是不同的D.研究者受自身认识水平和社会条件的制约15.1895年之后,许多中上层文人虽未完全放弃追求学问,但也开始参与现代经济活动。
陈璧、沈云沛、陆润庠和张謇等都是进士出身,又都办工厂。
曾任帝师的孙家鼐和翁同龢,分别安排一子和一侄孙经商。
这反映了A.中国近代工业起步B.政府废止科举取士制度C.自然经济彻底瓦解D.政府放宽对民间办厂的限制16.费正清在《观察中国》中写道:“从1901年到1937年新征服者来临之前的这段时间,是外国人在北京少有的快乐时期,是一个外国人享有特权和特殊自由的时代,他们可以毫无阻碍地深入到中国人的生活中。
”这一现象的出现主要是由于A.《辛丑条约》的签订B.外国公使进驻北京C.新文化运动的影响D.民主共和观念深入人心17.“世界上最快乐得事,莫过于为理想而奋斗……‘为善至乐’的乐,乃是从道德中产生出来的。
为理想而奋斗的人,必能获得这种快乐,因为理想的本质就含有道德的价值。
”材料中所蕴含的哲学思想出自A.普罗泰戈拉B.苏格拉底C.柏拉图D.亚里士多德18.1826年,伦敦大学学院的建立拉开了英国新大学运动的序幕。
在这一运动中,曼彻斯特的欧文学院、伯明翰学院、利物浦学院等纷纷成立。
它们都由民众办理,注重工业和科学领域,面向中产阶级招收学生,招收学生没有教派及性别限制,采用住宿与走读两种制度。
2012年广州市高二数学学业水平测试模拟(75中提供)本试卷共4页,共20小题,满分150分。
考试用时120分钟。
一、选择题:本大题共10小题,每题5分,共50分.每小题只有一项是符合题目要求的.1.已知U = { 2,3,4,5,6,7 },M = { 3,4,5,7 },N = { 2,4,5,6 },则A.M∩N = { 4,6 } B.M∪N = U C.(Cu N )∪M =U D.(Cu M )∩N = N2.已知向量,向量,且,则实数等于A.B.C.D.3.如图,样本数为的四组数据,它们的平均数都是,频率条形图如下,则标准差最大的一组是4.已知等差数列的前13项之和为,则等于....5.已知函数,给出下列四个命题:①若,则②的最小正周期是③在区间上是增函数④的图象关于直线对称其中真命题是.①②④.①③.②③.③④6.若过点A (3 , 0 ) 的直线l与曲线有公共点,则直线l斜率的取值范围为A.( , ) B.[ , ] C.( , ) D.[ , ]7.已知函数的零点依次为,则A. B. C. D.8.用单位立方块搭一个几何体,使它的主视图和俯视图如右图所示,则它的体积的最小值与最大值分别为A.与B.与C.与D.与9.函数的图象大致是..10.如图,一只蚂蚁在边长分别为3,4,5的三角形区域内随机爬行,则其恰在离三个顶点距离都大于1的地方的概率为()A、B、1-C、1-D、1-二、填空题:本大题共5小题,考生作答4小题,每小题5分,满分20分.11.已知函数满足,,则= .12.记等比数列{an}的前n项和为Sn,若S3=2,S6=18,则等于_________.13.为了了解“预防禽流感疫苗”的使用情况,某市卫生部门对本地区5月份至7月份使用疫苗的所有养鸡场进行了调查,根据下列图表提供的信息,可以得出这三个月本地区平均每月注射了疫苗的鸡的数量为____万只.14.已知某算法的流程图如图所示,若将输出的(x , y )值依次记为(x1 , y1 ),(x2 , y2 ),……(x n , y n ),……(1) 若程序运行中输出的一个数组是( , t),则t = ;(2) 程序结束时,共输出(x , y )的组数为.三、解答题:本大题共6小题,共80分.解答应写出文字说明、证明过程或演算步骤.15.(本小题满分12分)已知函数的部分图象如图所示.(Ⅰ) 求函数的解析式;(Ⅱ) 如何由函数的图象通过适当的变换得到函数的图象, 写出变换过程.16.(本小题满分12分)有两个不透明的箱子,每个箱子都装有4个完全相同的小球,球上分别标有数字1、2、3、4.(Ⅰ)甲从其中一个箱子中摸出一个球,乙从另一个箱子摸出一个球,谁摸出的球上标的数字大谁就获胜(若数字相同则为平局),求甲获胜的概率;(Ⅱ)摸球方法与(Ⅰ)同,若规定:两人摸到的球上所标数字相同甲获胜,所标数字不相同则乙获胜,这样规定公平吗?17.(本小题满分14分)如图,平行四边形中,,,且,正方形和平面成直二面角,是的中点.(Ⅰ)求证:;(Ⅱ)求证:平面;(Ⅲ)求三棱锥的体积.18.(本小题满分14分)某自来水厂的蓄水池存有400吨水,水厂每小时可向蓄水池中注水60吨,同时蓄水池又向居民小区不间断供水,小时内供水总量为吨,().(Ⅰ)从供水开始到第几小时时,蓄水池中的存水量最少?最少水量是多少吨?(Ⅱ)若蓄水池中水量少于80吨时,就会出现供水紧张现象,请问:在一天的24小时内,有几小时出现供水紧张现象.19.(本小题满分14分)已知平面区域恰好被面积最小的圆及其内部所覆盖.(1)试求圆的方程.(2)若斜率为1的直线与圆C交于不同两点满足,求直线的方程.20.(本小题满分14分)已知二次函数同时满足:①不等式≤0的解集有且只有一个元素;②在定义域内存在,使得不等式成立,设数列{}的前项和.(Ⅰ)求函数的表达式;(Ⅱ)求数列{}的通项公式;(Ⅲ)设各项均不为0的数列{}中,所有满足的整数的个数称为这个数列{}的变号数,令(),求数列{}的变号数.高二数学学业水平测试模拟参考答案及评分意见一、选择题(本大题共10小题,每小题5分,共50分)1. B2. B3. D4. B5. D6. D7. A8.9. B10. D二、填空题(本大题共4小题,每小题5分,共20分)11. 12. 33 13. 90 14. ,1005三、解答题(本大题共6小题,共80分)15.(本小题满分12分)解:(Ⅰ)由图象知的最小正周期,故……3分将点代入的解析式得,又,∴故函数的解析式为……6分(Ⅱ)变换过程如下:另解:……12分以上每一个变换过程均为3分.16.(本小题满分12分)解:(Ⅰ)用(表示甲摸到的数字,表示乙摸到的数字)表示甲、乙各摸一球构成的基本事件,则基本事件有:、、、、、、、、、、、、、、、,共16个;------------------------------------------------------3分设:甲获胜的的事件为A,则事件A包含的基本事件有:、、、、、,共有6个;则------------------------------5分------------------------------6分(Ⅱ)设:甲获胜的的事件为B,乙获胜的的事件为C;事件B所包含的基本事件有:、、、,共有4个;则-------------------------8分----------------------10分,所以这样规定不公平. -----------------11分答:(Ⅰ)甲获胜的概率为;(Ⅱ)这样规定不公平. -----------------------12分17.(本小题满分14分)(Ⅰ)证明:平面平面,交线为∴----------2分∴又∴--------4分(Ⅱ)证明:连结,则是的中点∴中,---------------6分又∴∴平面-------------8分(Ⅲ)解:设中边上的高为依题意:∴即:点到平面的距离为---------------10分∴-----------------14分18.(本小题满分14分)解:(Ⅰ)设小时后蓄水池中的水量为吨,则;…………………………………3分令=;则且,∴;………………5分∴当,即时,,即从供水开始到第6小时时,蓄水池水量最少,只有40吨. …………………8分(Ⅱ)依题意,得,……………11分解得,即,;即由,所以每天约有8小时供水紧张. ………………………14分19.(本小题满分14分)解:(1)由题意知此平面区域表示的是以构成的三角形及其内部,且△是直角三角形,所以覆盖它的且面积最小的圆是其外接圆,故圆心是(2,1),半径是,所以圆的方程是.……………………………………(7分)(2)设直线的方程是: .因为,所以圆心到直线的距离是,即解得: .……………………………………(10分)所以直线的方程是: .……………………………………(14分)20.(本小题满分14分)解:(Ⅰ)∵不等式≤0的解集有且只有一个元素∴解得或------------------------2分当时,函数在递增,不满足条件②当时,函数在(0,2)上递减,满足条件②综上得,即---------------------5分(Ⅱ)由(Ⅰ)知当时,当≥2时==∴--------------------------------------------9分(Ⅲ)由题设可得----------------------------11分∵,,∴,都满足∵当≥3时,即当≥3时,数列{}递增,∵,由,可知满足∴数列{}的变号数为3.----------------------------------------14分如上各题若有其它解法,请评卷老师酌情给分.。
2012年广州市高考二模文综地理部分试题
2013年高考历史解题技巧一般来说,要注意以下三点:1.对课本基础知识的掌握程度要求很高,必须准确、全面、牢固地掌握所学基础知识,只有依托扎实的基础知识,才能结合题意进行分析比较,运用灵活的解题方法,迅速答题。
2.紧扣题目设问的指向,也就是要抓住题干中那些标志这类题型的特定词句,如“主要在于”“主要因为”“最根本”“最能说明”等。
只有深入思考,才能揭示出本质问题,找出问题涵盖最全面和解释最深刻的选项。
3.掌握好选择最佳选项的方法。
由于程度型选择题的结构特点是几个备选项与题干之间都有不同程度的内在联系。
高考地理综合分析题常常是地理考试的重头戏,也是学生最感头疼的一部分。
它在整篇地理试题中占分名义上是三分之二,其实往往超过这个数,因为在选择题中有些带图题或无图考题,也需要通过正确的分析思虑才能获得答案。
我们先从这类题目的特点要求入手。
这部分试题有图和文两部分合成,也有光图一部分。
图即指各种类型的图,文则包括各种文字材料或表格,要求是读图文资料回答以下提问。
言下之意就清楚了。
第一要求读懂图文资料提供的地理背景和地理信息,以及包含的地理知识,其中隐性的地理知识一定要善于挖掘出来并且明朗化。
其次要理解吃透提问的要求,用你对图文资料的理解和领会,有针对性地组织文字回答问题。
2013年全国各高校艺考报名时间汇总。
2012广州二模作文评讲例文(含点评、升格展示、2012广州二模作文评讲例文(含点评、升格展示、教师下水作文)尘世一书童作文题目:世界著名摇滚音乐家约翰列侬说:如果你不能改变自己,你就改变世界;如果你不能改变世界,你就改变自己。
以上这段话引发了你怎样的思考?请联系生活体验和认识,写一篇文章,自拟标题,自选文体,不少于800字。
改变自己顺德区乐从中学高三12班:刘梓婷改变自己,改变世界,王力宏歌曲中的歌词让我们明白自己的力量原来也可以很强大。
假如改变不了天气,那就改变我们的心情;假如改变不了事实,那就改变自己,接受事实。
学会改变自己,让愉快的心情在糟糕的天空里飞扬。
改变自己,那是生活的智慧。
(由歌词引出话题,类比提出观点。
)改变自己是一种生活状态的自我调节,是追求更完美自我的需要。
如对待全球气候变暖,不同的人会有不同的看法。
悲观者会认为天塌地陷,是世界末日之昭;乐观者则认为还好,是地球给我们的警示,提醒我们该采取行动保护地球了。
存在是客观的,不以人的意志为移,唯一可做的是:改变自己,用自己的力量影响世界,甚至改变世界。
所以改变自己是生活的聪明之举,智慧之态。
(由对待全球气候变暖问题,论述为什么要改变自己。
)改变自己,迈向时代,创造未来。
孙中山看到近代中国迫切需要革命型,就改变自己,弃医从政,由医学走向政治革命的改变。
这一改变,不仅改变了孙中山的人生际遇,也改变了近代中国,改变中国的社会状态,结束了落后腐败的封建帝制,翻开了中国革命的新篇章。
与此相同的还有鲁迅。
他深知手中的手术刀已不可拯救处于水深火热之中的中国,所以他改变自己,弃医从文,用文字唤醒麻木的国人,用文字这一载体,寄托思想,传送爱国救国的情怀,以刺激当时麻木国人的神经。
孙中山、鲁迅只是那些古往今来为世界而改变自己的人物的缩影。
国难当头,他们唯一可以应对的是自身的改变。
他们深知,与其埋怨这个世界,不如用自己的改变去拯救国家民族。
他们的改变,是自我的主动调整,迎合了时代,也为国家创造了不一样的未来。
试卷类型:B 2012年广州市普通高中毕业班综合测试(二)英语本试卷共12页,三大题,满分135分。
考试用时120分钟。
注意事项:1. 答卷前,考生务必用2B铅笔在“考生号”处填涂考生号。
用黑色字迹的钢笔或签字笔将自己所在的市、县/区、学校以及自己的姓名和考生号、试室号、座位号填写在答题卡上。
用2B铅笔将试卷类型(B)填涂在答题卡相应位置上2. 选择题每小题选出答案后,用2B铅笔把答题卡上对应题目选项的答案信息点涂黑,如需改动,用橡皮擦干净后,再选涂其他答案,答案不能答在试卷上。
3. 非选择题必须用黑色字迹钢笔或签字笔作答,答案必须写在答卷纸各题目指定区域内相应位置上;如需改动,先划掉原来的答案,然后再写上新的答案;不准使用铅笔和涂改液不按以上要求作答的答案无效。
4. 考生必须保持答题卡的整洁。
考试结束后,将试卷和答题卡一并交回。
I 语言知识及应用(共两节,满分45分)第一节完形填空(共15小题;每小题2分,满分30分)阅读下面短文,掌握其大意,然后从1~15各题所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。
I woke up this morning with a fright!There appeared to be a mouse in my bed tickling my nose and 1 ____ scratching me. It had to be a mouse, for those tiny sharp little nails were scratching me all across my 2 ____.It couldn't have been a(n) 3 ____ as I didn't own any pets;it couldn't have been a rat, because if what I had read about rats was 4 ____,their sharp teeth could 5 ____their way through solid stone. They do this because their front teeth never stop growing and this is the only way to keep them 6 ____.I didn't dare to open my eyes and face the 7 ____of the disgusting mouse in the bed with me. I felt so dirty and 8 I didn't want to change my position cither, 9 ____the mouse would slide onto other areas of my body, which would 10 ____give me horrible dreams for years to come!Despite my fears, I finally decided to swiftly 11 the mouse away. But it 12 __!I didit again and again and it kept coming back, every single time.There was no way out. I had to face my enemy. I took a breath, gathered my 13 ____and slowly opened my eyes. To my relief, I saw something far 14 ____than a mouse and it all came back to me.I had put my baby daughter Rebecca into bed beside me after her first bottle in the morning!That also reminded me: I needed to trim (修剪)her _15___1. A. warmly B. lightly C. wildly D. thoroughly2. A. foot B. hand C. stomach D. face3. A. mouse B. insect C. cat D. fly4. A. true B. suitable C. interesting D. clear5. A. fight B. pull C. carve D. wind6. A. strong B. sharp C. slim D. short7. A. horror B. thought C. risk D. cost8. A. tired B. stupid C. uncomfortable D. disappointed9. A. hoping B. fearing C. assuming D. doubting10. A. gradually B. temporarily C. surely D. hardly11. A. throw B. brush C. keep D. send12. A. returned B. repeated C. dropped D. stayed13. A. memories B. thoughts C. energy D. courage14. A. softer B. cuter C. uglier D. worse15. A. hair B. feet C. nails D. fingers第二节语法填空(共10小题;每小题1. 5分,满分15分)阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或使用括号中词语的正确形式填空,并将答案填写在答题卡标号为16~25的相应位置上。
2012广州二模作文分析与例文点评作文辅导1027 0654:本文转贴自:2012广州二模作文分析与例文点评尘世一书童【试题回放】阅读下面的文字,根据要求作文。
世界著名摇滚音乐家约翰·列侬说:“如果你不能改变自己,你就改变世界;如果你不能改变世界,你就改变自己。
”以上这段话引发了你怎样的思考?请联系生活体验与认识,写一篇文章,自拟标题,自选文体,不少于800字。
【审题分析】1、本题属于由材料引出写作范围的作文题目,“材料”是引用了世界著名摇滚音乐家约翰·列侬的名言。
名言有两层意思:第一层是“如果你不能改变自己,你就改变世界”;第二层是“如果你不能改变世界,你就改变自己”。
简言之,一是改变世界,一是改变自己。
材料言简意赅,富有哲理。
2、深入思考,约翰列侬的一句话揭示了一个基本的社会现实——在人与世界的关系中,总是要经历一段“冲突——和谐”的历史。
从思想根源来看,这句话体现了辩证的哲学观,“改变世界和改变自己”处在一种对立统一的矛盾运动之中。
3、“要求”考生要写的是这段名言引发自己的思考,可以写自己生活中与这个名言有关的体验,或表明自己对这个名言的认识,无论是“体验”还是“认识”,都要与自选的文体相符。
写作中,可以选择写“改变世界”,也可以写“改变自己”,还可以二者都写,但无论怎样写,都应该体现二者的内在冲突,选择写一面也应该以另一面作为背景,如果完全抛开一面而孤立的写另一面,在立意上虽不算偏题,但显然不是最佳的角度。
如:考场文章《改变自己》,全文三个分论点,集中谈“改变自己”的具体做法,要改变心态,改变思想,改变方法,其写作的重点就落在了心态、思想和方法上,无视“改变世界”这一对立面,自然无法获取高分。
4、材料提出的是一个有关“改变自己”与“改变世界”的取舍问题,既是限制也是提示,如果考生只用例子去印证提示语,面面俱到,没有自己的分析与感悟,就不可能取得高分。
如:考生生硬套用层进式“什么是改变自己和改变世界”“为什么要改变自己和改变世界”“怎样去改变自己和改变世界”。
【KS5U首发】广东省2012年广州二模数学(理科)试题word版缺答案试卷类型:B2012年广州市普通高中毕业班综合测试(二)数学(理科)2012.4本试卷共4页,21小题,满分150分。
考试用时l20分钟。
注意事项:1.答卷前。
考生务必用2B 铅笔在“考生号”处填涂考生号。
用黑色字迹的钢笔或签字笔将自己所在的市、县/区、学校以及自己的姓名和考生号、试室号、座位号填写在答题卡上。
用2B 铅笔将试卷类型(B)填涂在答题卡相应位置上。
2.选择题每小题选出答案后,用2B 铅笔把答题卡上对应题目选项的答案信息点涂黑,如需改动,用橡皮擦干净后,再选涂其他答案,答案不能答在试卷上。
3.非选择题必须用黑色字迹的钢笔或签字笔作答,答案必须写在答题卡各题目指定区域内的相应位置上;如需改动,先划掉原来的答案,然后再写上新的答案;不准使用铅笔和涂改液。
不按以上要求作答的答案无效。
4.作答选做题时,请先用2B 铅笔填涂选做题的题号对应的信息点,再作答。
漏涂、错涂、多涂的,答案无效。
5.考生必须保持答题卡的整洁。
考试结束后,将试卷和答题卡一并交回。
参考公式:锥体的体积公式13V Sh=,其中S 是锥体的底面积,h 是锥体的高.一、选择题:本大题共8小题。
每小题5分.满分40分.在每小题给出的四个选项中,只有一项是符合题目要求的1.已知i 为虚数单位,复数1z a i =+,22z i =-,且12|z ||z |=,则实数a 的值为 A .2 B .-2 C .2或-2 D .±2或02.设集合A={(x ,y)|2x+y=6},B={(x ,y)|3x+2y=4},满足C ?(A B)的集合C 的个数为A .1B .2C .3D .43.已知双曲线221x my +=的虚轴长是实轴长的2倍,则实数m 的值是A .4 B .14C .14-D .-44.已知等差数列{n a }的公差为2,项数是偶数,所有奇数项之和为l5,所有偶数项之和为25,则这个数列的项数为 A .10 B .20 C .30 D .405.已知两条不同直线m 、l ,两个不同平面α、β,在下列条件中,可得出αβ⊥的是A .m l ⊥,l ⊥α,l ⊥βB .m l ⊥,αβ ,m α?C .m ⊥l ,m α⊥,l β⊥D .m ⊥l ,l β⊥,m α? 6.下列说法正确的是A .函数1f (x )x=在其定义域上是减函数B .两个三角形全等是这两个三角形面积相等的必要条件C .命题“210x R ,x x ?⊥++>”的否定是“210x R ,x x ?⊥++D .给定命题P 、q ,若P ⊥q 是真命题,则?P 是假命题7.阅读图l 的程序框图,该程序运行后输出的A 的值为A .5B .6C .7D .88.已知实数a ,b 满足22430a b a +-+=,函数1f (x )a s i n xb c o s x =++的最大值记为(a ,b )?,则(a ,b )?的最小值为A .1B .2C 31D .3二、填空题:本大题共7小题,考生作答6小题,每小题5分,满分30分.(一)必做题(9~13题)9.某社区有600个家庭,其中高收入家庭150户,中等收入家庭360户,低收人家庭90户,为了调查购买力的某项指标,用分层抽样的方法从中抽取一个容量为l00的样本,则中等收入家庭应抽取的户数是。
试卷类型:B2012年广州市普通高中毕业班综合测试(二)数 学(理 科) 2012.4参考公式:锥体的体积公式13V Sh =,其中S 为锥体的底面积,h 为高.一、选择题:本大题共8小题,每小题5分,满分40分.在每小题给出的四个选项中,只有一项是符合题目要求的1.已知i 为虚数单位,复数i a z +=1,i z -=22,且21z z =,则实数a 的值为A .2B .-2C .2或-2D .2±或0 2.设集合{}62),(=+=y x y x A ,{}423),(=+=y x y x B ,满足)(B A C ⋂∈的集合C 的个数为A .1B .2C .3D .4 3. 已知双曲线122=+my x 的虚轴长是实轴长的2倍,则实数m 的值是A .4B .41C .41- D .-4 4. 已知等差数列{}n a 的公差为2,项数是偶数,所有奇数项之和为15,所有偶数项之和为25,则这个数列的项数为A .10B .20C .30D .405. 已知两条不同直线l m ,,两个不同平面βα,,在下列条件中,可得出βα⊥的是A .,l m ⊥l ∥α,l ∥βB .αβα∈=⋂⊥m l l m ,,C .m ∥l ,βα⊥⊥l m ,D .m ∥l ,αβ⊂⊥m l , 6. 下列说法正确的是A .函数xx f 1)(=在其定义域上是减函数 B. 两个三角形全等是这两个三角形面积相等的必要条件 C. 命题“01,2>++∈∃x x R x ”的否定是“01,2<++∈∀x x R x ”D. 给点命题q p ,,若q p ∧是真命题,则p ⌝是假命题7. 阅读图1的程序框图,该程序运行后输出的k 的值为A. 5B. 6C. 7D. 88. 已知实数b a ,满足03422=+-+a b a ,函数1cos sin )(++=x b x a x f 的最大值记为),(b a ϕ,则),(b a ϕ的最小值为A. 1 B . 2 C.13+ D. 3二、填空题:本大题共7小题,考生作答6小题,每小题5分,满分30分。
广州市高考二模试卷(文综地理部分)和答案2012年广州市普通高中毕业班综合测试(二)文科综合地理2012.4中科院国家授时中心公布:“将在北京时间2012年7月1日7:59:59和全球同步进行闰秒调整,届时会出现7:59:60的特殊现象”。
自1972年至今共闰秒24次,都是“正1秒”,还没有出现过“负1秒”。
1.上述现象,反映了地球:A.全球变暖加剧 B.地壳运动减缓C.公转速度加快 D.自转速度减慢下图是我国北纬30°植被叶面积指数变化示意图(叶面积指数是指单位土地面积上植物叶片总面积占土地面积的倍数),完成2~3题。
2.造成我国100°E以西地区植被叶面积指数较小的最主要因素是A.海拔B.降水C.冰川D.土壤3.我国100°E以东地区植被叶面积变化,反映的地域分异规律是A.纬度地带性 B.经度地带性C.垂直地带性 D.非地带性下图是世界海洋分布示意图,完成4~5题。
4.最容易出现海啸的海区是A.X B.Y C.M D.N5.最可能没有大陆架的海区是A.X B.Y C.M D.N6.引起右图埃及人口密度分布的最主要区位因素是A.经济B.地形C.气候D.河流开放改革以来,我国工程机械制造业的并购、重组和扩张的大潮一直此起拔伏。
下图是我国工程机械制造业发展阶段示意图,完成7~8题。
7.我国工程机械制造业蓬勃发展的最主要区位条件是A.自然资源丰富B.城市化发展迅猛C.第三产业发展D.欧美市场的兴起8.我国企业在海外布局考虑的最主要区位因素是A.原料 B.动力C.技术D.劳力9.近年来,我国水稻生产呈现东北大规模增加,而东南沿海地区则显著减少,引起这种变化最根本的区位原因是A.区域间经济差异B.农业技术发展C.水资源空间差异 D.全球气候变化《全国地面沉降防治规划》(2011~2020年)指出,中国逾50个城市地面正在下沉,其中长三角、华北平原、汾渭盆地是中国三个主要的沉降区。
2012年广州市普通高中毕业班综合测试(二)I语言知识及应用(共两节,满分45分)第一节完形填空(共小题;每小题2分,满分30分)阅读下面短文,掌握其大意,然后从〗5各题所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。
I woke up this morning with a fright !There appeared to be a mouse in my bed tickling my nose and 1 ____ scratching me. It had to be a mouse, for those tiny sharp little nails were scratching me all across my 2 ____ .It couldn't have been a(n) 3 ____ as I didn't own any pets;it couldn't have been a rat, because if what I had read about rats was 4 ____ ,their sharp teeth could 5 ____ their way through solid stone. They do this because their front teeth never stop growing and this is the only way to keep them 6 ____.I didn't dare to open my eyes and face the 7 ____ of the disgusting mouse in the bed with me.I felt so dirty and 8 I didn't want to change my position cither, 9 ____ the mouse would slide onto other areas of my body, which would 10 ____ give me horrible dreams for years to come! Despite my fears, I finally decided to swiftly 1 ____ 1 the mouse away. But it 12 ____ !I did it again and again and it kept coming back, every single time.There was no way out. I had to face my enemy. I took a breath, gathered my 13 ____ and slowly opened my eyes. To my relief, I saw something far 14 ____ than a mouse and it all came back to me.I had put my baby daughter Rebecca into bed beside me after her first bottle in the morning !That also reminded me: I needed to trim (修剪)her 15 ____1. A. warmly B. lightly C. wildly D. thoroughly2. A. foot B. hand C. stomach D. face3. A. mouse B. insect C. cat D.fly4. A. true B. suitable C. interesting D. clear5. A. fight B. pull C. carve D. wind6. A. strong B. sharp C. slim D. short7. A. horror B. thought C. risk D. cost8. A. tired B. stupid C. uncomfortable D. disappointed9. A hoping B. fearing C. assuming D. doubting10.A. gradually B. temporarily C. surely D. hardly11.A. throw B. brush C. keep D. send12.A. returned B. repeated C. dropped D. stayed13.A. memories B. thoughts C. energy D. courage14 A. softer B. cuter C. uglier D. worse15 A. hair B. feet C. nails D. fingers第二节语法填空(共10小题;钻小题1. 5分,满分15分):阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或使用括号屮词语的正确形式填空,并将答案填写在答题卡标号为16-25的相应位置上。
Inequality between men and women results in poorer health for children and greater familypoverty(贫穷),according to a new study. The UN agency Unicef found that, 16 _____ the situation has slightly improved, many women are still not included in family decisions,17_____ as a result their children are more likely to suffer from poor health.The main finding of the 30-country survey is that equality between men and women is vital to 18 _____ (improve) living standards and health, especially for children in developing countries. The conclusions arc contained in the agency’ s 19 _____ (late) report. This report points to a lack of opportunities for girls and women in education and work,which contributes 20_____ their poverty and lack of power. Where men control the household, less money 21_____ ( spend) on healthcare and food,22_____ results in poorer health for children.An increase in 23 _____ (employ) opportunities for women would increase 24_____ household power, the report said. For example, the agency found that whoever has more household income decides 25_____ or not it will be used for family needs.II阅读(共两节,满分50分)第一节阅读理解(共2O小题;每小题2分,满分4O分)阅读下列短文,从每题所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。
AWhen the SS Gairsoppa was sunk by a German war boat 70 years ago,it took its huge silver cargo to a watery grave. Today, US divers are working to recover what may be the biggest shipwreck treasure ever.The Florida-based company Odyssey Marine Exploration announced that it had found the Gairsoppa, and cited official documents indicating the British ship was carrying some 219 tons of silver when it sank in 1941 in the North Atlantic f some 300 miles off the Irish coast.Valued then at£600,000, the silver today is worth about $ 210 million, which would make it history's largest recovery of precious metals lost at sea.“We've accomplished the first stage of this project —the location and identification of the target shipwreck —and now we're hard at work planning for the recovery stage,”Odyssey project manager Andrew Craig said.Under the terms of an agreement reached between Odyssey and the British government,the company will retain 80 percent of the silver it can recover from the wreck.The 412-foot Gairsoppa had been sailing from India back to Britain in February 1941 carrying a cargo of silver, iron and tea, when a storm hit. Running low on fuel, the ship was forced to change direction and headed for Galway,Ireland,the nearest port of safety.It never made it,sunk by a German torpedo in the contested waters of the North Atlantic. Of the 85 people on board,only one survived.The Gairsoppa came to rest nearly 15 ,400 feet below the surface, where for decades it was lost to the world. All previous efforts to locate the shipwreck failed.New photographs released by the Oddesy show clear details of the ship,including the hole blown open by the torpedo. The find highlights the influential role that modern technologies,such as global positioning systems and deepwater robots,have come to play in the business of finding shipwrecks.Odyssey president Mark Gordon said, "The majority of the world's ocean floor has not yet been explored. We know more about the surface of the moon than we know about the deepest parts of the oceans. It's exciting to be working at depths like these and to be among the pioneers of thisunexplored frontier, ”26. What caused the ship to sink?A. A dangerous storm.B. A German attack.C. A loss of direction.D. An accidental explosion.27. Where was the ship headed when it sank?A. India.B. Ireland.C. The United States.D. Britain.28. Which of the following about the Gairsoppa is true?A. All the passengers aboard were killed.B. Some of its treasures have already been recovered.C. It is under more than 15,000 meters of water.D. It is officially owned by the British government.29. Why has it taken so many years to find the location of the ship?A. The required technology was not available before,B. People had completely forgotten the ship had been sunk.C. Search permission had previously been refused.D. Official ship records have only recently been discovered.30. What does Mark Gordon think of deep-sea exploration?A. It is more difficult than space exploration.B. It is a very expensive activity.C. It is still in its early stage.D. It can make explorers very rich,BI live in Mumbai, India, a big city, but I came from a remote Kerala village. When I was a- boy, hardly anyone spoke English around me. So, at age nine, Dad sent me to Montfort, an exclusive boarding school. There, I had to speak English or be punished. My uniform was typical English public school :grey jacket,tie,and black leather shoes 一so different from the clothes most people in my village wore. And our official school sport was cricket, something I'd never heard of, let alone played, before arriving.Montfort had been built for the children of the British officials who once ruled India ’ but by the time I arrived in 1961, nearly all the students were from powerful Indian families. Its English traditions, however, continued.When I returned home for the holidays still wearing my uniform, people stared at me like I was an alien. ”Speak some English,“ they teased. Looking back, I unwittingly brought a bit o f English culture to my village.But English and too much Western influence are precisely what many traditionalists and politicians fear. They ask:Will such influences finish off our own culture?Various leaders have tried to erase the British traditions, pulling down old British statues and replacing many British-rule city names with older native names. Some even advocate changing our weekly day of rest from the "Western" Sunday to the “Hindu" Tuesday.Extreme responses I say. You can't change history, and it's only natural for foreign influences to affect a nation's culture. So Indian culture, as it is today, is really a mixture derived from centuries of foreign invasions.Add to that the massive changes of the 20th century resulting from the television, jet-age travel, the Internet, etc.Everything from clothes and language to food keeps changing, yet we remain Indian. I believe that Asian cultures are too ancient and deep-rooted to be weakened by foreign influences.Allow me to illustrate ray point. Some time ago, I took my visiting Singapore-born-and- raised cousin to a Chinese restaurant for dinner. Later, while driving home,I talked about the fine Chinese food we'd just had."Was that Chinese food?" my cousin exclaimed. “Oh, I didn't know. “ It must have tasted too Indian for him to realise it.Meanwhile, like countless others, my village has transformed over the past decades. Many people wear modern clothes and TV brings cricket into local homes. There's even an English- language school,where you can hear kids giggling,yelling,flirting —all in English,but with an Indian accent. Just like the Chinese food you get in India.Are these foreign influences something to worry about? I don't think so. India's Chinese food tastes pretty good to me!31. What can we infer about the author?A. He was a supporter of British rule in India.B. He came from a wealthy family.C. His family was unpopular in the village.D. He was partly educated in Britain.32. Which of the following are mentioned by the author as British influences on Indian society?a. Place namesb. Languagec. Foodd. Architecturee. Sportf. EducationA. a, b, d, eB. b, d, e, fC. a, b, e, fD. b, c, e, f33. Why does the author use the example of Chinese food in India?A. To show how foreign customs are adapted to suit local conditions.B. To argue that overseas influences have enriched the lives of local people.C. To explain why foreign influences on local culture should be limited.D. To indicate the loss of local cultural traditions resulting from foreign influences.34. In the last part of the passage, the author again refers to his village to show .A. life there has improved a lotB. its culture has become less IndianC. culture continues to change over timeD. his disapproval of modern youth35. The main purpose of the passage is to .A. informB. persuadeC. describeD. criticiseCAre you an optimist? Do you look at your glass and see it as half full? Do you believe that every cloud has a silver lining and that generally things turn out for the best? Do you believe that if something is meant to be, it will be? If you reply "yes" to all of these questions, then you are an optimist. You probably are enthusiastic,cheerful and outgoing. You may well be successful at work and in love.But you may be misguided because things don't turn out for the best. You may believe that when one door closes another one opens (for example,you may fail to land a new job,another chance will come around soon), Wrong. When one door closes, another door slams in your face. That's bitter reality.Now a book has been published which confirms what we pessimists (悲观者)have suspected all along. It's called The Positive Power of Defensive Pessimism. Its author argues that defensivepessimism can lead to positive results. Defensive pessimism is a strategy used to manage fear,anxiety and worry. Defensive pessimists prepare for things by setting low outcomes for themselves. They carefully consider everything that may go wrong and plan for ways to handle these problems. And this gives them a sense of control. Lawrence Sanno, a psychology professor, says, "What's interesting about defensive pessimists is that they tend to be very successful people, so their low opinion of the situation's outcomes is not realistic. They use it to motivate themselves to perform better. ”So far, so good. This is not rocket science. Defensive pessimists prepare carefully and consider what might go wrong, whether at work, on a date or even in a sports game. It makes sense to have a back-up plan. There are many sayings in English urging caution. For example, “Don't put all your eggs in one basket," and “Don't count your chickens until they hatch. “To have a confident and optimistic approach to life's problems is good. But listen to what Woody Alien ,the American comedian says, ”Confidence is what you have before you understand the problem.“There are pros and cons to being an optimist and a pessimist. Don't feel bad if you see the glass half empty. You are a realist. But lighten up and hook up with someone who sees the same glass half full.36. What is the passage mainly about?A. A book that has recently been published.B. The dangers of being too optimistic.C. The benefits of defensive pessimism.D. How to become successful in life.37. The underli ned word “ it" in paragraph 3 refers to_____.A. the final outcomeB. their low opinionC. people's motivationD. their performance38. The underlined sentence “This is not rocket science" in paragraph 4 means_____.A. the cost is not so highB. there is no real proofC. it's not a dangerous thing to doD. it is quite simple to understand39. The writer would probably describe himself as_____.A. an optimistB. a realistC. a defeatistD. a scientist40. Which of the following English expressions would a defensive pessimist believe?A. “Every cloud has a silver lining.B. "The glass is half full not half empty. ,C. "Whatever will be, will be.D. “Don't put all your eggs in one basket.DDuring lectures, my students often ask which is the most difficult language to learn. It's not easy to answer because there are many factors to take into consideration. For a person's first language these factors are unimportant because people learn their mother tongue naturally. So the question of how hard a language is to learn is only relevant when learning a second language.Studies have shown that native speakers of Spanish find Portuguese much easier to learn than, say, native speakers of Chinese, because Portuguese is very similar to Spanish, while Chinese is very different. So a person's first language affects their learning of a second language. The greater the differences between a second language and the first, the harder it will be for most people to learn. Many Westerners think that Chinese is the hardest language to learn because of its writing systemand pronunciation. But for Japanese speakers, who already use Chinese characters in their own language, learning writing is less difficult than for speakers of languages using the Roman alphabet.A recent study reported that British embassy staff found that the second hardest language to learn was Japanese. More surprising was the language that they found most problematic — Hungarian. In this case the issue was not the writing system (as both English and Hungarian use a similar alphabet) but grammatical complexity. Hungarian has 35 cases (forms of a noun according to whether it is subject, object, genitive, etc. ) and it was this that caused the British diplomatic personnel most difficulty. One suspects they would have even more problems with Tabassaran, a Caucasian language with 48 cases, if they ever had to learn it.Teachers and the circumstances in which a language is learned also play important roles,as does each learner's motivation for learning. If people learn a language because they need to use it professionally, they often learn it faster than people studying a language that has no direct use in their day-to-day life.Put simply,no language is easy Io learn well,though languages which are related to our first language are easier. Learning a completely different writing system is a huge challenge, but that does not necessarily make a language more difficult than another. In the end, it is impossible to say that there is one language that is the most difficult language in the world.41. According to the passage, who is likely to have the most difficulty learning a new language?A. A Korean person learning French.B. A Spanish person learning Portuguese.C. A German person learning English.D. A Chinese person learning Japanese.42. Which language do British embassy staff find most difficult to learn? .A. Japanese.B. Caucasian.C. Hungarian.D. Tabassaran.43. Which of the following is NOT mentioned as a factor affecting language learning?A. The amount of time spent studying the new language.B. The environment in which language learning takes place.C. The reasons a person has for learning the new language.D. The similarity between a person's first language and the new language.44. Why does the author believe there's no single hardest language?A. All languages are equally difficult to learn well.B. With enough effort, any language can be learned well.C. There is not enough evidence to make any final conclusion.D. People's background and learning situations determine which language is hardest.45. The writer is probably_____.A. a language learnerB. a language teacherC. a newspaper journalistD. an embassy officialIII 写作(共两节,满分40分)第一节基础写作(共1小题,满分15分)你校英语角的模拟市长论坛将就“As mayor, I will…”这一话题展开讨论。