广东省深圳市2014-2015学年度第二学期深圳市高级中学八年级期中试卷
深圳市文汇中学2014-2015年八年级下期中数学试卷含答案解析
2014-2015学年广东省深圳市文汇中学八年级（下）期中数学试卷一、选择题1．已知a＞b，下列四个不等式中不正确的是（）A．4a＞4b B．﹣4a＜﹣4b C．a+4＞b+4 D．a﹣4＜b﹣42．下列图形中，不是中心对称图形的是（）A．B．C．D．3．在平面直角坐标系中，将点A（﹣2，3）向上平移3个单位长度，那么平移后对应的点A′的坐标是（）A．（﹣2，﹣3） B．（﹣2，6）C．（1，3） D．（﹣2，1）4．等腰三角形的一个角是50°，则它顶角的度数是（）A．80°或50° B．80°C．80°或65°D．65°5．下列各式分解因式正确的是（）A．﹣2a2=（1+2a）（1﹣2a）B．x2+4y2=（x+2y）2C．x2﹣3x+9=（x﹣3）2D．x2﹣y2=（x﹣y）26．用反证法证明命题“三角形中必有一个内角小于或等于60°”时，首先应假设这个三角形中（）A．有一个内角大于60°B．有一个内角小于60°C．每一个内角都大于60°D．每一个内角都小于60°7．如图，已知AE=CF，∠AFD=∠CEB，那么添加下列一个条件后，仍无法判定△ADF≌△CBE的是（）A．∠A=∠C B．AD=CB C．BE=DF D．AD∥BC8．下列命题的逆命题是真命题的是（）A．如果a＞0，b＞0，则a+b＞0 B．直角都相等C．两直线平行，同位角相等D．若a=6，则|a|=|6|9．若（m﹣1）x＞m﹣1的解集为x＜1，则m的取值范围是（）A．m＞1 B．m＜1 C．m＞0 D．m＜010．直线l1：y=k1x+b与直线l2：y=k2x+c在同一平面直角坐标系中的图象如图所示，则关于x的不等式k1x+b＜k2x+c的解集为（）A．x＞1 B．x＜1 C．x＞﹣2 D．x＜﹣211．如图，△ABC中，∠ABC与∠ACB的平分线交于点F，过点F作DE∥BC交AB于点D，交AC于点E，那么下列结论：①△BDF和△CEF都是等腰三角形；②DE=BD+CE；③△ADE的周长等于AB与AC的和；④BF=CF．其中正确的有（）A．①②③ B．①②③④C．①②D．①12．用甲乙两种原料配制成某种饮料，已知每千克的这两种原料的维生素C含量及购买这两种原料的价格如表所示：现配制这种饮料10kg，要求至少含有4200单位的维生素C，且购买原料的费用不超过72元．设所需甲种原料x（kg），则可列不等式组为（）A．B．C．D．二、填空题13．计算：2015×3.501﹣2015×2.501=．14．不等式2（x﹣3）≥5x﹣4的最大整数解为．15．如图，在△ABC中，AB=5，AC=3，BC的垂直平分线交AB于D，交BC于E，则△ADC的周长等于．16．如图，在Rt△ABC中，∠C=90°，∠ABC=60°，点D是BC边上的点，CD=，将△ACD沿直线AD折叠，使点C落在AB边上的点E处，若点P是直线AD上的动点，则△PEB的周长的最小值是．三．解答题（共52分）17．因式分解：3a3﹣12a2b+12ab2．18．先因式分解，然后计算求值：（x+y）（x2+3xy+y2）﹣5xy（x+y），其中x=6.6，y=﹣3.4．19．解不等式（组），并把解集表示在数轴上．（1）≥（2）．20．如图，在平面直角坐标系中，每个小正方形的边长为1，△ABC各顶点都在格点上，点A、C 的坐标分别为（﹣1，2）、（0，﹣1），结合所给的平面直角坐标系解答下列问题：（1）AC的长等于；（2）画出△ABC向右平移2个单位得到的△A1B1C1；（3）将△ABC绕点C按逆时针方向旋转90°，画出旋转后的△A2B2C2（4）三角形ABC的面积是．21．如图，已知AC⊥BC，BD⊥AD，AC与BD交于O，AC=BD．求证：（1）BC=AD；（2）△OAB是等腰三角形．22．如图，△ACB和△ECD都是等腰直角三角形，∠ACB=∠ECD=90°，D为AB边上一点，（1）求证：△ACE≌△BCD；（2）若AE=3，AD=2，求DE的长度．23．为了加快教学手段的现代化，某校计划购置一批电脑，已知甲公司的报价是每台5800元，优惠条件是购买10台以上，则从第11台开始按报价的70%计算；乙公司的报价也是每台5800元，优惠条件是每台均按报价的85%计算．假如你是学校有关方面负责人，在电脑品牌、质量、售后服务等完全相同的前提下，你如何选择？请说明理由．2014-2015学年广东省深圳市文汇中学八年级（下）期中数学试卷参考答案与试题解析一、选择题1．已知a＞b，下列四个不等式中不正确的是（）A．4a＞4b B．﹣4a＜﹣4b C．a+4＞b+4 D．a﹣4＜b﹣4【考点】不等式的性质．【分析】根据不等式的性质对各选项分别分析判断得出即可．【解答】解：A、不等式a＞b的两边同时乘以4，可得4a＞4b，正确，不符合题意；B、不等式a＞b的两边同时乘以﹣4，可得﹣4a＜﹣4b，正确，不符合题意；C、不等式a＞b的两边同时加上4，可得a+4＞＜b+4，正确，不符合题意；D、不等式a＞b的两边同时减去4，可得a﹣4＞b﹣4，错误，符合题意．故选：D．【点评】本题考查了不等式的性质：（1）不等式的两边同时加上或减去同一个数或整式不等号的方向不变；（2）不等式的两边同时乘以或除以同一个正数不等号的方向不变；（3）不等式的两边同时乘以或除以同一个负数不等号的方向改变．2．下列图形中，不是中心对称图形的是（）A．B．C．D．【考点】中心对称图形．【分析】根据中心对称图形的概念求解．【解答】解：A、是中心对称图形，故本选项错误；B、不是中心对称图形，故本选项正确；C、是中心对称图形，故本选项错误；D、是中心对称图形，故本选项错误；故选B．【点评】本题考查了中心对称的知识，中心对称图形是要寻找对称中心，旋转180度后与原图重合．3．在平面直角坐标系中，将点A（﹣2，3）向上平移3个单位长度，那么平移后对应的点A′的坐标是（）A．（﹣2，﹣3） B．（﹣2，6）C．（1，3） D．（﹣2，1）【考点】坐标与图形变化-平移．【分析】根据点的平移规律，向上平移3个单位，横坐标不变，纵坐标加3，即可得到答案．【解答】解：∵点（﹣2，3）向上平移3个单位，∴平移后的点的坐标为：（﹣2，3+3），即（﹣2，6），故选B．【点评】此题主要考查了点的平移规律，关键掌握好：左右移，横减加，纵不变；上下移，纵加减，横不变．4．等腰三角形的一个角是50°，则它顶角的度数是（）A．80°或50° B．80°C．80°或65°D．65°【考点】等腰三角形的性质．【专题】分类讨论．【分析】等腰三角形一内角为50°，没说明是顶角还是底角，所以有两种情况．【解答】解：（1）当50°角为顶角，顶角度数即为50°；（2）当50°为底角时，顶角=180°﹣2×50°=80°．故选：A．【点评】本题考查了等腰三角形的性质及三角形内角和定理；若题目中没有明确顶角或底角的度数，做题时要注意分情况进行讨论，这是十分重要的，也是解答问题的关键．5．下列各式分解因式正确的是（）A．﹣2a2=（1+2a）（1﹣2a）B．x2+4y2=（x+2y）2C．x2﹣3x+9=（x﹣3）2D．x2﹣y2=（x﹣y）2【考点】提公因式法与公式法的综合运用．【专题】计算题．【分析】原式各项分解得到结果，即可做出判断．【解答】解：A、原式=（1﹣4a2）=（1+2a）（1﹣2a），正确；B、原式不能分解，错误；C、原式不能分解，错误；D、原式=（x+y）（x﹣y），错误．故选A．【点评】此题考查了提公因式法与公式法的综合运用，熟练掌握因式分解的方法是解本题的关键．6．用反证法证明命题“三角形中必有一个内角小于或等于60°”时，首先应假设这个三角形中（）A．有一个内角大于60°B．有一个内角小于60°C．每一个内角都大于60°D．每一个内角都小于60°【考点】反证法．【分析】熟记反证法的步骤，然后进行判断即可．【解答】解：用反证法证明“三角形中必有一个内角小于或等于60°”时，应先假设三角形中每一个内角都不小于或等于60°，即都大于60°．故选：C．【点评】本题结合角的比较考查反证法，解此题关键要懂得反证法的意义及步骤．反证法的步骤是：（1）假设结论不成立；（2）从假设出发推出矛盾；（3）假设不成立，则结论成立．在假设结论不成立时要注意考虑结论的反面所有可能的情况，如果只有一种，那么否定一种就可以了，如果有多种情况，则必须一一否定．7．如图，已知AE=CF，∠AFD=∠CEB，那么添加下列一个条件后，仍无法判定△ADF≌△CBE的是（）A．∠A=∠C B．AD=CB C．BE=DF D．AD∥BC【考点】全等三角形的判定．【分析】求出AF=CE，再根据全等三角形的判定定理判断即可．【解答】解：∵AE=CF，∴AE+EF=CF+EF，∴AF=CE，A、∵在△ADF和△CBE中∴△ADF≌△CBE（ASA），正确，故本选项错误；B、根据AD=CB，AF=CE，∠AFD=∠CEB不能推出△ADF≌△CBE，错误，故本选项正确；C、∵在△ADF和△CBE中∴△ADF≌△CBE（SAS），正确，故本选项错误；D、∵AD∥BC，∴∠A=∠C，∵在△ADF和△CBE中∴△ADF≌△CBE（ASA），正确，故本选项错误；故选B．【点评】本题考查了平行线性质，全等三角形的判定的应用，注意：全等三角形的判定定理有SAS，ASA，AAS，SSS．8．下列命题的逆命题是真命题的是（）A．如果a＞0，b＞0，则a+b＞0 B．直角都相等C．两直线平行，同位角相等D．若a=6，则|a|=|6|【考点】命题与定理．【分析】先写出每个命题的逆命题，再进行判断即可．【解答】解；A．如果a＞0，b＞0，则a+b＞0：如果a+b＞0，则a＞0，b＞0，是假命题；B．直角都相等的逆命题是相等的角是直角，是假命题；C．两直线平行，同位角相等的逆命题是同位角相等，两直线平行，是真命题；D．若a=6，则|a|=|6|的逆命题是若|a|=|6|，则a=6，是假命题．故选：C．【点评】此题考查了命题与定理，两个命题中，如果第一个命题的条件是第二个命题的结论，而第一个命题的结论又是第二个命题的条件，那么这两个命题叫做互逆命题．其中一个命题称为另一个命题的逆命题．正确的命题叫真命题，错误的命题叫做假命题．判断命题的真假关键是要熟悉课本中的性质定理．9．若（m﹣1）x＞m﹣1的解集为x＜1，则m的取值范围是（）A．m＞1 B．m＜1 C．m＞0 D．m＜0【考点】不等式的解集．【专题】计算题．【分析】根据已知不等式的解集，利用不等式的基本性质求出m的范围即可．【解答】解：∵（m﹣1）x＞m﹣1的解集为x＜1，∴m﹣1＜0，解得：m＜1，故选B【点评】此题考查了不等式的解集，熟练掌握不等式的基本性质是解本题的关键．10．直线l1：y=k1x+b与直线l2：y=k2x+c在同一平面直角坐标系中的图象如图所示，则关于x的不等式k1x+b＜k2x+c的解集为（）A．x＞1 B．x＜1 C．x＞﹣2 D．x＜﹣2【考点】一次函数与一元一次不等式．【专题】数形结合．【分析】y=k1x+b与直线l2：y=k2x+c在同一平面直角坐标系中的交点是（1，﹣2），根据图象得到x＜1时不等式k1x+b＜k2x+c成立．【解答】解：由图可得：l1与直线l2在同一平面直角坐标系中的交点是（1，﹣2），且x＜1时，直线l1的图象在直线l2的图象下方，故不等式k1x+b＜k2x+c的解集为：x＜1．故选B．【点评】本题考查了一次函数与不等式（组）的关系及数形结合思想的应用．解决此类问题关键是仔细观察图形，注意几个关键点（交点、原点等），做到数形结合．11．如图，△ABC中，∠ABC与∠ACB的平分线交于点F，过点F作DE∥BC交AB于点D，交AC于点E，那么下列结论：①△BDF和△CEF都是等腰三角形；②DE=BD+CE；③△ADE的周长等于AB与AC的和；④BF=CF．其中正确的有（）A．①②③ B．①②③④C．①②D．①【考点】等腰三角形的判定；角平分线的性质．【分析】由平行线得到角相等，由角平分线得角相等，根据平行线的性质及等腰三角形的判定和性质．【解答】解：∵DE∥BC，∴∠DFB=∠FBC，∠EFC=∠FCB，∵BF是∠ABC的平分线，CF是∠ACB的平分线，∴∠FBC=∠DFB，∠FCE=∠FCB，∵∠DBF=∠DFB，∠EFC=∠ECF，∴△DFB，△FEC都是等腰三角形．∴DF=DB，FE=EC，即有DE=DF+FE=DB+EC，∴△ADE的周长AD+AE+DE=AD+AE+DB+EC=AB+AC．故选A．【点评】本题考查了等腰三角形的性质及角平分线的性质及平行线的性质；题目利用了两直线平行，内错角相等，及等角对等边来判定等腰三角形的；等量代换的利用是解答本题的关键．12．用甲乙两种原料配制成某种饮料，已知每千克的这两种原料的维生素C含量及购买这两种原料的价格如表所示：现配制这种饮料10kg，要求至少含有4200单位的维生素C，且购买原料的费用不超过72元．设所需甲种原料x（kg），则可列不等式组为（）A．B．C．D．【考点】由实际问题抽象出一元一次不等式组．【分析】所需甲种原料x（kg），则需乙种原料（10﹣x）kg．由题意得：xkg甲原料所含维生素+（10﹣x）kg乙≥4200单位；甲所花的费用+乙的费用≤72．【解答】解：设所需甲种原料的质量为xkg，则需乙种原料（10﹣x）kg．根据题意，得：，故选：B．【点评】此题主要考查了由实际问题抽象出一元一次不等式，关键是正确理解题意，抓住题目中的不等关系，列出不等式．二、填空题13．计算：2015×3.501﹣2015×2.501=2015．【考点】因式分解-提公因式法．【专题】计算题．【分析】原式提取2015，计算即可得到结果．【解答】解：原式=2015×（3.501﹣2.501）=2015，故答案为：2015【点评】此题考查了因式分解﹣提公因式，熟练掌握提取公因式的方法是解本题的关键．14．不等式2（x﹣3）≥5x﹣4的最大整数解为0．【考点】一元一次不等式的整数解．【分析】首先解不等式，然后确定不等式中的整数解即可．【解答】解：去括号，得2x﹣6≥5x﹣4，移项，得2x﹣5x≥﹣4+6，合并同类项，得﹣3x≥2，系数化成1得x≤﹣．则最大的整数解是0．故答案是：0．【点评】本题考查了一元一次不等式的整数解，正确解不等式，求出解集是解答本题的关键．解不等式应根据不等式的基本性质．15．如图，在△ABC中，AB=5，AC=3，BC的垂直平分线交AB于D，交BC于E，则△ADC的周长等于8．【考点】线段垂直平分线的性质．【分析】已知中BC的垂直平分线交AB于D，根据线段的垂直平分线的性质可以得到CD=BD，由此推出△ADC的周长=AC+CD+AD=AD+BD+AC=AC+AB，然后利用已知条件就求出△ADC的周长．【解答】解：∵BC的垂直平分线交AB于D，交BC于E，∴CD=BD，∴△ADC的周长=AC+CD+AD=AD+BD+AC=AC+AB，而AB=5，AC=3，∴△ADC的周长=8．故填空答案：8．【点评】此题主要考查线段的垂直平分线的性质等几何知识．线段的垂直平分线上的点到线段的两个端点的距离相等，进行线段的等效代换是正确解答本题的关键．16．如图，在Rt△ABC中，∠C=90°，∠ABC=60°，点D是BC边上的点，CD=，将△ACD沿直线AD折叠，使点C落在AB边上的点E处，若点P是直线AD上的动点，则△PEB的周长的最小值是3+．【考点】轴对称-最短路线问题．【分析】连接CE，交AD于M，根据折叠和等腰三角形性质得出当P和D重合时，PE+BP的值最小，即可此时△BPE的周长最小，最小值是BE+PE+PB=BE+CD+DB=BC+BE，先求出BC和BE长，代入求出即可．【解答】解：如图，连接CE，交AD于M，∵沿AD折叠C和E重合，∴∠ACD=∠AED=90°，AC=AE，∠CAD=∠EAD，∴AD垂直平分CE，即C和E关于AD对称，CD=DE=，∴当P和D重合时，PE+BP的值最小，即此时△BPE的周长最小，最小值是BE+PE+PB=BE+CD+DB=BC+BE，∵∠DEA=90°，∴∠DEB=90°，∵∠BAC=30°，∴∠B=60°，∵DE=，∴BE=1，BD=2，即BC=2+，∴△PEB的周长的最小值是BC+BE=2++1=3+．故答案为：3+．【点评】本题考查了折叠性质，等腰三角形性质，轴对称﹣最短路线问题，勾股定理，含30度角的直角三角形性质的应用，关键是求出P点的位置．三．解答题（共52分）17．因式分解：3a3﹣12a2b+12ab2．【考点】提公因式法与公式法的综合运用．【分析】首先提取公因式3a，再利用完全平方公式进行分解即可．【解答】解：原式=3a（a2﹣4ab+4b2）=3a（a﹣2b）2．【点评】本题考查了用提公因式法和公式法进行因式分解，一个多项式有公因式首先提取公因式，然后再用其他方法进行因式分解，同时因式分解要彻底，直到不能分解为止．18．先因式分解，然后计算求值：（x+y）（x2+3xy+y2）﹣5xy（x+y），其中x=6.6，y=﹣3.4．【考点】因式分解的应用．【专题】计算题．【分析】原式提取x+y，利用完全平方公式变形，将x与y的值代入计算即可求出值．【解答】解：原式=（x+y）（x2+3xy+y2﹣5xy）=（x+y）（x﹣y）2，当x=6.6，y=﹣3.4时，原式=3.2×100=320．【点评】此题考查了因式分解的应用，熟练掌握完全平方公式是解本题的关键．19．解不等式（组），并把解集表示在数轴上．（1）≥（2）．【考点】解一元一次不等式组；在数轴上表示不等式的解集；解一元一次不等式．【分析】（1）去分母，去括号，移项，合并同类项，系数化成1即可；（2）求出每个不等式的解集，再根据找不等式组解集的规律求出不等式组的解集即可．【解答】解：（1）≥3（3x﹣2）≥5（2x+1）9x﹣6≥10x+59x﹣10x≤5+6﹣x≤11x≥﹣11，在数轴上表示不等式的解集为：；（2）∵解不等式①得：x≤2，解不等式②得：x＞，∴不等式组的解集为＜x≤2，在数轴上表示不等式组的解集为：．【点评】本题考查了解一元一次不等式组，解一元一次不等式，在数轴上表示不等式（组）的解集的应用，能根据不等式求出不等式的解集合能根据不等式的解集求出不等式组的解集是解此题的关键．20．如图，在平面直角坐标系中，每个小正方形的边长为1，△ABC各顶点都在格点上，点A、C 的坐标分别为（﹣1，2）、（0，﹣1），结合所给的平面直角坐标系解答下列问题：（1）AC的长等于；（2）画出△ABC向右平移2个单位得到的△A1B1C1；（3）将△ABC绕点C按逆时针方向旋转90°，画出旋转后的△A2B2C2（4）三角形ABC的面积是．【考点】作图-旋转变换；作图-平移变换．【专题】作图题．【分析】（1）利用勾股定理计算AC的长；（2）利用平移的性质画出点A、B、C平移后的对应点A1、B1、C1，即可得到△A1B1C1；（3）利用网格特点和旋转的性质画出点A、B、C旋转后的对应点A2、B2、C2，即可得到△A2B2C2；（4）利用面积的和差求解：把三角形ABC的面积看作一个正方形的面积减去三个直角三角形的面积．【解答】解：（1）AC==；（2）如图，△A1B1C1为所作；（3）如图，△A2B2C2为所作；（4）S△ABC=3×3﹣×1×2﹣×3×1﹣×3×2=．故答案为，．【点评】本题考查了作图﹣旋转变换：根据旋转的性质可知，对应角都相等都等于旋转角，对应线段也相等，由此可以通过作相等的角，在角的边上截取相等的线段的方法，找到对应点，顺次连接得出旋转后的图形．也考查了平移变换．21．如图，已知AC⊥BC，BD⊥AD，AC与BD交于O，AC=BD．求证：（1）BC=AD；（2）△OAB是等腰三角形．【考点】全等三角形的判定与性质；等腰三角形的判定．【专题】证明题．【分析】（1）根据AC⊥BC，BD⊥AD，得出△ABC与△BAD是直角三角形，再根据AC=BD，AB=BA，得出Rt△ABC≌Rt△BAD，即可证出BC=AD，（2）根据Rt△ABC≌Rt△BAD，得出∠CAB=∠DBA，从而证出OA=OB，△OAB是等腰三角形．【解答】证明：（1）∵AC⊥BC，BD⊥AD，∴∠ADB=∠ACB=90°，在Rt△ABC和Rt△BAD中，∵，∴Rt△ABC≌Rt△BAD（HL），∴BC=AD，（2）∵Rt△ABC≌Rt△BAD，∴∠CAB=∠DBA，∴OA=OB，∴△OAB是等腰三角形．【点评】本题考查了全等三角形的判定及性质；用到的知识点是全等三角形的判定及性质、等腰三角形的判定等，全等三角形的判定是重点，本题是道基础题，是对全等三角形的判定的训练．22．如图，△ACB和△ECD都是等腰直角三角形，∠ACB=∠ECD=90°，D为AB边上一点，（1）求证：△ACE≌△BCD；（2）若AE=3，AD=2，求DE的长度．【考点】全等三角形的判定与性质；等腰直角三角形．【分析】（1）本题要判定△ACE≌△BCD，已知△ACB和△ECD都是等腰直角三角形，∠ACB=∠ECD=90°，则DC=EA，AC=BC，∠ACB=∠ECD，又因为两角有一个公共的角∠ACD，所以∠BCD=∠ACE，根据SAS得出△ACE≌△BCD．（2）由（1）的论证结果得出∠DAE=90°，利用勾股定理得出答案即可．【解答】（1）证明：∵∠ACB=∠ECD=90°，∴∠ACD+∠BCD=∠ACD+∠ACE，即∠BCD=∠ACE．∵BC=AC，DC=EC，∴△ACE≌△BCD．（2）解：∵△ACB是等腰直角三角形，∴∠B=∠BAC=45°，∵△ACE≌△BCD，∴∠B=∠CAE=45°∴∠DAE=∠CAE+∠BAC=45°+45°=90°，∴AD2+AE2=DE2．即DE==．【点评】本题考查三角形全等的判定与性质，等腰直角三角形的性质，及勾股定理的运用，掌握三角形全等的判定方法是解决问题的关键．23．为了加快教学手段的现代化，某校计划购置一批电脑，已知甲公司的报价是每台5800元，优惠条件是购买10台以上，则从第11台开始按报价的70%计算；乙公司的报价也是每台5800元，优惠条件是每台均按报价的85%计算．假如你是学校有关方面负责人，在电脑品牌、质量、售后服务等完全相同的前提下，你如何选择？请说明理由．【考点】一元一次不等式的应用；一元一次方程的应用．【专题】应用题．【分析】设学校需购置电脑x台，分别表示出甲、乙两公司需要的付费，然后比较即可得出答案．【解答】解：如果购买电脑不超过11台，很明显乙公司有优惠，而甲公司没优惠，因此选择乙公司．如果购买电脑多于10台．则：设学校需购置电脑x台，则到甲公司购买需付[10×5800+5800（x﹣10）×70%]元，到乙公司购买需付5800×85%x元．根据题意得：1）若甲公司优惠：则10×5800+5800（x﹣10）×70%＜5800×85% x解得：x＞20；2）若乙公司优惠：则10×5800+5800（x﹣10）×70%＞5800×85% x解得：x＜20；3）若两公司一样优惠：则10×5800+5800（x﹣10）×70%=5800×85%x解得：x=20．答：购置电脑少于20台时选乙公司较优惠，购置电脑正好20台时两公司随便选哪家，购置电脑多于20台时选甲公司较优惠．【点评】本题考查了一元一次不等式的应用，解答本题的关键是表示出甲、乙两公司需要的付费，难度一般．第21页（共21页）。
广东省深圳市高级中学2014-2015学年高二下学期期中考试数学(文)试卷 Word版含答案
高级中学2014－2015学年第二学期期中测试高二文科数学命题人：朱志敏 审题人： 刘金凤 本试卷分为第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分，共4页，第Ⅰ卷为1-12题，共60分，第Ⅱ卷为13-22题，共90分. 全卷共计150分. 考试时间为120分钟. 注意事项：1、答第一卷前，考生务必将自己的姓名、准考证号、考试科目用铅笔涂写在答题卡上.2、每小题选出答案后，用2B 铅笔把答题卡上对应题目的答案标号涂黑. 如需改动用橡皮擦干净后，再涂其它答案，不能答在试题卷上.3、考试结束，监考人员将答题卡收回. 附：（1）回归直线方程：y a b x ∧∧∧=+ ；（2）回归系数：1221ni ii ni i x y nx yb x nx∧==-=-∑∑，a y b x ∧∧=-，11n i i x x n ==∑ ，11ni i y y n ==∑.第I 卷 （本卷共计60 分）一、选择题：（本大题共12小题，每小题5分，满分60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.若p ⌝是q ⌝的必要不充分条件，则p 是q 的 ( ) A.充分不必要条件 B.必要不充分条件 C.充分且必要条件D.既不充分也不必要条件2.下列函数中，定义域是R 且为增函数的是 ( )A ．xy e－＝ B ．3y x ＝ C ． y lnx ＝ D ．y x ＝ 3.有一段“三段论”推理是这样的：对于可导函数()f x ，如果0()0f x '=，那么0x x =是函数()f x 的极值点，因为函数3()f x x =在0x =处的导数值(0)0f '=，所以，0x =是函数3()f x x =的极值点。
以上推理中 （ ）A ．结论正确B ．大前提错误C ．小前提错误D ．推理形式错误4.若复数21(1)()z a a i a R =-++ ∈是纯虚数，则1z a +的虚部为 （ ） A ．25- B ．25i - C ．25 D ．25i5．定义集合运算：{}|,,A B z z xy x A y B *==∈∈．设{}{}1,2,0,2A B ==，则集合A B*的所有元素之和为 （ ）A ．0B ．2C ．3D ．66.函数243,[0,3]y x x x =-+∈的值域为 （ ） A. [0,3] B. [1,0]- C. [1,3]- D. [0,2]7.如图所示,圆O 的直径6AB =,C 为圆周上一点, 3BC =过C 作圆的切线l , 过A 作l 的垂线AD ,垂足为D ,则DAC ∠ =( )A.15︒B.30︒C.45︒D.60︒8.已知()f x 、()g x 均为[]1,3－上连续不断的曲线，根据下表能判断方程()()f x g x =有实数解的区间是 ( )x－1 0 1 2 3 ()f x －0.677 3.011 5.432 5.980 7.651 ()g x－0.5303.4514.8905.2416.892A. ()1,0－B ．(1,2)C ． (0,1)D ．(2,3)9．直线12(t )2x ty t=+⎧⎨=+⎩是参数被圆229x y +=截得的弦长等于( )A.125 B. 9105 C. 925 D. 125510.若,{1,0,1,2}a b ∈-，则函数2()2f x ax x b =++有零点的概率为 （ ）A ．316B ．78C ．34D ．5811.若32()33(2)1f x x ax a x =++++有极大值和极小值，则a 的取值范围是 （ ）A ．12a -<<B ．2a >或1a <-C ．2a ≥或1a ≤-D ．12a a ><-或12. 已知()f x 是定义在R 上周期为4的奇函数，当(0,2]x ∈时，2()2log xf x x =+，则(2015)f = ( )A ．2-B ．21C ．2D ．5第II 卷 （本卷共计90 分）注意事项：请用黑色墨水签字笔在答题卡．．．上作答，在试题卷上答题无效. 二、填空题：（本大题共4小题，每小题5分，满分20分）13.在极坐标系中，点()20P ，与点Q 关于直线32sin θ=对称，则PQ = ． 14.已知复数122,34,z m i z i =+=-若12z z 为实数，则实数m 的值为 。
广东省深圳市2014-2015学年第二学期深圳市百合外国语学校八年级期中考试
2014-2015学年第二学期深圳市百合外国语学校期中考试八年级英语试卷说明：1.全卷共115小题，试卷4页，答卷1页，考试时间90分钟，满分100分。
2.解答全部做在答卷中规定的位置，做在其它地方无效，答题前，将座位号、姓名、班及写在答卷密封线内，不得在答卷上作任何标记。
I.Listening part.(15%)II. Multiple choice.(0.5*30=15%)()21. As a servant who works here for 20 years, she is loyal and totallydependable.A. dishonestB. humbleC. reliableD. thoughtful()22. Ingeneral her work has been good, but this passage is not wellwritten.A. As we knowB. In conclusionC. In other wordsD. Generally speaking ()23. It’s important to exercise regularly.A. usual l yB. recentlyC. seldomD. often()24. In order to get good result in mid-term exams, you need to make a goodresolution.A. argumentB. possibilityC. agreementD. decision()25. As a scientist, Einstein has a brilliantmind.A. veryimportantB. veryintelligentC. so differentD. quite special()26. You ________ TV too much every day. It’s bad for youreyes.A. had betterwatchB. had better towatchC. had betterwatchingD. had better not watch ()27. Our school hadto________ the soccer games because of the bad weather, whichmade studentsfrustrated.A. put onB. put offC. put upD. put down()28. ---Why didn’t you hand in your exercise book?---I remember________ it to you justnow.A. giveB. gaveC. givingD.to give()29. It________ that we should take weather and human resourceinto ________A. was suggested; considerableB. was advised; considerC. has been suggested; considerationD. has been advised; considering()30.Thehouse________ high walls! No one canescape.A.surrounds withB. is surrounded byC. surrounded byD. is surrounded for()31.Susan________ pick up the new boss at theairport.A.was arrangingtoB. made anarrangementC. was arrangedtoD. planed anarrangement ()32. If thepolicemen________ enough time, they will certainly catchthe________ of thiscase.A.were given; murderB. weregiven;murdererC. are given; murderD. are given;murderer()33. When I got into the classroom, all ofthem________ Tom,which________ menuts.A.teased; droveB. were teasing; was drivingC. were teasing; drivingD. were teasing; drove()34. I________ to go to school when theearthquake________ in the year2008.A.was preparing; was occurringB. waspreparing;occurredC. prepared; was occurringD. improve, which()35. Bobby hasgreat________ inhand-writing,________ made his parentshappy.A.improve, thatB. improvement, thatC. improvement, whichD. improve, which()36. This is the strangeman________ the neighborslately.A.which mentioned byB. who was mentioned byC. who was mentioning asD. whom was mentioned with()37. Last summer I went to Deng Xiaoping’s hometown and visited thehouse________ he wasborn.A.whichB.on whichC.in whereD. where()38. Theflowers________ in order to makethem________.A. must water, attractB. must water,attractiveC. must be watered,attractionD. must be watered,attractive()39.The World TradeCenter________ by terrorists! What a pieceof________ news！A.was destroyed, sensationB. destroyed, sensationC. destroyed, sensationalD. was destroyed, sensational()40.The Statue of Liberty,________ the symbol of America, ________ byEiffel.A.that is, was designedB. which was,designedC. that was, was designedD. which is, was designed()41. Nobody knew the reason________ at 10 o’clock lastnight.A.that theircelebrationB. why they werecelebratingC. of theircelebratingD. that they werecelebrating()42. A debate on science________ while we________ an exam last Wednesday afternoon.A.was held; were havingB. held; hadC. was being held; were havingD. was held; had()43.Can you lend me the book________ the otherday?A.that you talkedB. you talked about itC. which you talkedtoD. you talked about()44.The film Tiny Times 3.0,________ as money worship, was a greatsuccess.A.that wascriticizedB. which had beencriticizedC. that had beencriticizedD. whichcriticized()45.He’ll never forget the days ________ he spent in Baihe Foreign LanguageSchool.A.whatB. whichC. whenD. where()46.TF Boys and EXO are________ among teenager,________ amonggirls.A.popularity, particularB. popularity speciallyC. popular, particularD. popular, particularly()47. We are in________ with four other companies for thecontract.petingB. competitiveC. competitionD. competitor()48.Please choose the wrongsentenceA. The harder we study, the better grades we’ll get.B. In the year 2015, everything gets more and more expensive except oil.C. Jim is the tallest of the two boys.D. Yellow river is the second longest river in China.()49.Please choose the wrongsentenceA. She told him he ought not to have done it.B. She dare not say what she thinksC. We used to grow beautiful roses.D. ---Must we hand in our exercise books today? ---No, you mustn’t, just hand in tomorrow.()50.Please choose the CORRECTsentence.A. I don’t know what are they looking for.B. The teacher told his class that light traveled faster than sound.C. None of us knows where these new parts can be bought.D. He asked if I will come to school yesterday or not.III. Cloze(1*10=10%)This is a message world. You speak, write letters, make a telephone call. Your words carrya message. People communicate with words. Do you think you can communicate withoutwords?Asmileonyourfaceshowsyouare51orfriendly.Tearsinyoureyestellothersthatyouaresad.Whenyouputupyourhandsinclass,theteacherknowsyouwanttosaysomethingorask questions. You52your head, and people know you are saying “No”. You nod and peopleknow you are saying “Yes”. Other things can alsocarrymessages.For example, a sign at the bus helps you to know53bus to take. A sign on the door helpsyou where to go in or out. Have you ever thought that there are a lot of signs around you and that you receive messages from them all thetime?People can communicate in many other ways. An artist can use all his54to tellbeautiful scenery, interesting people, and many other things. A musician can express his or herfeelings through music. You can55happiness, sorrows, worries, sadness, and beauty by listening tosome kindsofmusic.Adancercanexpresshisorherfeelingsthroughhisorherbody.That’sakind ofbody56.Booksarewrittento57youaboutallthewonderfulthingsintheworldandalsoaboutpeople and their ideas and feelings. Books, magazines, newspapers, TVs, radios, QQs, e-mails,movies andmobilephones58helpuscommunicatewithothers.Theycanhelpustoknowwhatisgoingon in the world and what other people are thinkingabout.Ienjoyreadinginmy59time.Aninterestingbook,acup ofgreentea,acomfortablechair.I municationis everywhere in the world and in ourlives.()51. A. safe B. happy C. young D. alone()52. A. shake B. lift C. touch D. wash()53. A. what B. when C. where D. which()54. A. work B. meanings C. paintings D. poets()55. A. provide B. tasty C. remember D. experience()56. A. direction B. emotion C. business D. language()57. A. tell B. say C. talk D. speak()58. A. both B. all C. none D. neither()59. A. busy B. hard C. free D. easy()60. A. happy B. joyful C. quietly D. FriendlyIV. Reading comprehension(1*20=20%)(A)New changes have taken place in Paris in recent years. Paris used to beamong Europe’s busiest cities. Traffic jams could be seen all the time. But now there is a new2.5 kilometer- long car-freearea inside the city. The Louvre(卢浮宫)attractsworldtourists. People visit there not just for the art works, but also enjoy the roof ofthe building which is like a flying carpet. The world’s most beautiful city is now evenmorebeautiful.Lijiang River is in Guilin. It is well-known for its clear water, limestone(石灰岩洞) and green hills. The hills have beautiful names depending on differentshapes, such as “Elephant Trunk”. These attract many Chinese poetsand artists. The bestway to enjoy Lijiang River is to take an 83 km boat trip from Guilin to Yangshuoinsummer.Zurich, SwitzerlandWhat do you think Zurich is famous for? Great banks? Yes. People canfind many Swiss banks and foreign banks here. But the city is of great interest tomany people for another reason. Zurich hosts Europe’s largest street party each year.ItsStreet Parade has overtaken London’s Notting Hill Garival. What’s hot in the cityin 2014? In August, Zurich will host the European Athletic Championships. Thisgivestourists a chance to see the world’s top athletes making new records.Adelaide, AustraliaMany people may know Sydney or Melbourne. They are big cities inAustralia. But Adelaide wins people’s hearts with great festivals and tasty food. AdelaideFringe Festival is the largest art festival in Australia. Every February and March,people celebrate with outdoor art works, dance performances and live music.Adelaidehasmany kinds of foreign foods. British fish and chips, Italian pizza and German pork can be found in mostrestaurants.()61. Touristsenjoy the art works as well as________ of theLouvre.A. the busy streetB. The shape of its roofC. the car-free areaD. the flying carpet()62.Many Chinese poets and artists are attracted by________ inGuilin.A. Elephant trunksB. warm weatherC. the highway to YangshuoD. the green hills and limestone caves()63. Compared with London’s Notting Hill Varnival, the Street Parade in Zurich is ________.A. even worseB. exactly the sameC. much betterD. less popular() 64.When and where will the 2014 European Athletics Championships be held?A. In August, ParisB. In February, EuropeC. In March, AdelaideD. In August, Zurich()65.Betty is study art at college. She’s travelling to some place to enjoy art workand taste foreign foods. She could go to ________.A. AdelaideB. Lijiang River National ParkC. Zurich and ParisD. the Louvre(B)Taking away a city’s rubbish is a big job. Every day trucks come into a cityto collect it. Most rubbish is made up if things we can’t eat or use. If we kept thesethings, we would soon have a mountain ofrubbish.In some cities the rubbish is collected and taken outside if city to adump. Often the city dump is placed where the ground is low or there is a big hole.The kitchen rubbish is broken into small pieces and sent into the sewage system.Thesewage system takes away theused water from toilets, bathtubs and otherplaces.To keep mice and flies away, some earth is used to cover the newlydumped rubbish. Later, grass may be planted on the rubbish- filled land. Finally, a house ora school may be built there, and then you’d never know that this had once been anoldrubbish dump.In other cities the rubbish is burnt in special places. The fire burns everything but the metal. Sometimes the mental can be used again in factories where thingsmade of metal. The food parts of rubbish are put in special piles where theyslowly change into something called humus, which looks like black earth. It is richwith kinds of things that feed plants and helpmake themgrow.()66. The underline word “sewage” in the passage means________A. 排污B.染色C. 洗涤D. 洗尘()67. According to the passage, the food parts of rubbish can be used again________A. to feed animalsB. to feed plantsC. to build a houseD. to make machines() 68. The main idea of the passage is________A.to let us know taking away rubbish is a big job.B.to explain the need for rubbish collectionC.to introduce different ways to treat rubbishD.to tell people to take useful things out of rubbish() 69.How should we deal with a used mental box according to the passage?A. By burning itB. By puttingC. By throwingit awayD. By reusing and recycling it() 70.You can most probably read the passage in________A. a popular science magazineB. a TV guideC. a history bookD. a telephone book(C)A sign is another kind of language. Here are some of them that you see ontheroads.Number One is sign with the number thirty on it. When drivers see this sign, they must not go at more than thirty kilometers an hour. We see this sign when we are getting near a town.Number Two is a sign that we’re near a crossing. We must drive carefully.Number Three is a sign that there is a bend in the road. Again, we mustdrive carefully. It is not safe to go around a bend very fast.Number Four is a sign that there is another road coming in from the right. There is a junction at this place. Number Five is a sign that there is a hill andNumber Six is a sign thatthe road gets narrow. Drivers must go slowly and carefully.Number Seven has the word “SCHOOL” on it. This is a sign that there is a school at the side of the street or the road. Perhaps there are children going to or leaving school. So drivers must look carefully and goslowly. Number Eight is a sign with the letter “P” on it. The letter “P”means “Parking”. At some places, there are the signs “No Parking” or “No waiting”. If a driver leaves his car near one of theirsigns, a policeman may come and write down the number of his car.()71. At theplaces where you seesign1, ________A.you are already out of a townB.you still have thirty kilometers togoC.you must not go overthirty Kilometers an hourD. There must be a town thirty kilometers away()72. The underlined word bend probably means________ here.A.trafficB. subwayC. turningD. danger()73.You have to drive not only slowly but also carefully when you find ________A.each of the eightsignsB. either of signs 2 and 3C. all of signs 2, 4, 6 and 7D.Any of signs 3,5,6 and 7()74. People put these signs on the road in order to________A.teach drivers lessonB.make drives even saferC.Stop cars going thereD.Learn another kind of language()75. Which can be the best title for this message?A.Another LanguageB. On the Road.C. What to do.D. Traffic Signs(D)Because of a medical error, 44-year-old Safiya became blind. She now feels helpless.Andallshehadtodependon washer husband Meraj.Meraj loved Safiya with all his heart. He wanted to help his wife gain her confidence again.Finally, Sagiya felt ready to return to her job, but how would she get there? She used to take the bus, but was now too frightened to get around the city by herself.Meraj promised that he would ride the bus with her.For two weeks, each morning they made the journey together and Meraj would take a cab back to his office. Finally, Safiya decided to try the trip herself. Monday,Tuesday, Wednesday, Thursday...Each day she went on her own. It went perfectly.On Friday morning, Safiya took the bus to work as usual. As she was paying for her fare to get off the bus, the driver said: “Lady, I surely envy you.”“Why do you say that?” she asked the driver.The driver answered: “You know, every morning for the past week, a gentleman stood across the corner watching you. He makes sure you cross the street safely and he watches you until you enter your office building. Then he blows you a kiss and walks away.”Tears of happiness poured down Safiya’s cheers. Her husband had given her a gift more powerful than sight----------the gift of love that can bring light.()76.Safiya became blind because ________.A.she had a serious traffic accidentB. she had a serious eye illnessC. She wanted to test her husband’s loveD. she was treated wrongly by the doctors()77.Meraj encouraged Safiya to take the bus to ________ .A. help her become confident againB. Avoid troubling himC. keep healthyD. stay away from danger()78.Who does the underlined part a gentleman refer to?A. Safiya’s workmateB. Safiya’s husbandC. The bus driverD. The doctor()79.How did Safiya feel afterhearing the bus driver’s words?A. SadB. WorriedC. AngryD. Moved()80.The story mainly tells us that________.A. we should be strongin times of troubleB. a husband should take care of his wifeC. love can support us to get through difficultiesD. couple’s love is the greatest love in the worldV. Fill in the blanks with the proper form of the given words. (0.5*20=10%)81. She seemsreally________(energy) for a woman at herage.82. An actor must be ableto________(memory) his lines.83. The suspect wasunder________ (observe) by FBI andCIA84. Bradley Cooper,who played theleadingroleinAmericanSniper,was________(nomination)astheBestActor for OscarAcademyAward.85. David hadan________(argue) with my neighbor about a tree in hisgarden.86. Ican________(confident) promise that this year is going to be verydifferent.87. The Welcome Party offered you a good opportunityto________(social) withnew colleagues.88. He hastrouble________(communication) with otherstudents.89. The cooperation with China Mobile willfurther________(strength) this new companyand ensure its Continuedsuccess in thefuture.90. Some of the Chinese touristswere________(injury) in Nepal in theearthquake.91. John Harvardwas the key man tothe________(found) of Harvard University.92. Itwasabadcrash,but________(surprise) there was only onecasualty.93. Finally,he________(persuasive) his daughter to change her mind of studyingaboard.94. Losing her job, Annacannot________(solution) her financialtroubles.95. The beautiful city Pompeii was destroyed by the________(erupt) of Vesuviusvolcano.96The old manwas________(attack) and his money wasstolen.97. Asian InfrastructureInvestmentBankisoneof thehottest________(organize) recently.98. Many of the performers wereof________(profession)standard.99. I am writingin________ (respond) to your letter of June12.100. Sam________(realization)howdifficultthisquestionwas after carefulthinkingfor20minutes.VI. Fill in the blanks with the proper words. (1*10=10%)Where are you going to livein the city101________in the countryside? People have different ideas to the question. The102________(major) of the people would like to live in the city. They canenjoy much103________(entertain), better104________(education) system and delicious food. Everythingis convenient in the city. While people are thirsty, they can have boiled or bottled water atonce.When a child is ill, he105________(send) to hospital in just a few minutes. What’s more, if you’rerich enough, you can call a106________(privacy) doctor to your own house. However, people have to sufferheavy traffic and air pollution. On the other hand, others prefer countryside107________city. Thereasons are simple. We are108________(provider) with fresh air, clean water, and free109________(nature) beauty.Of course the most important is a longer and a happier life. Which will be your110________(chose),my friend?VII.Translation(0.5*10=5%)111. 我对你的无礼行为感到很失望，你必须向同学道歉。
广东省深圳市2014-2015学年第二学期石厦中学八年级期中考试
2014-2015 年石厦中学初二第二学期期中考试英语试题单项选择（20 分，每小题1 分）从下面每小题的A,B,C 选项中选出可以替换划线部分的最佳选项。
（共 5 小题，每小题 1 分）( ) 1. I enjoy reading because I t gives me knowledge and brings me joy.A. sadnessB. happinessC. excitement( ) 2. The little girl has difficulty dressing herself.A. troubleB. abilityC. method( ) 3.Tom said that we went separately to the club.A. togetherB. not togetherC. happily( ) 4. When and where did that car accident take place.A. hurtB. happenC. notice( ) 5. ---How is your English study?---I was poor in English before. But now my English has improved.A. got betterB. got worseC. failed( ) 6.Although my grandpa is 60 years old, he is very fit and enjoys exercising.A. healthyB. wiseC. busy( ) 7.”What’s up?” I asked when I saw the little girl outside the window.A. how is it going?B. when are you doing?C. what’s the matter? ( ) 8.she has practiced as a teacher for many years, so she is skillful in teaching now.A. workedB. seemedC. played( ) 9. After a busy day, he appears very tired and wants to have a rest.A. makesB. turnsC. looks( ) 10. ---Peter joined in the singing competition. What do you think of it?---Oh, I’m sure he will make it.A. succeedB. challengeC. hurt( ) 11.If I forget to write to my mother tomorrow, please__________ me of it.A. remindB. visitC. teach( ) 12.If you want to succeed, you have to have__________ in front of difficulties.A. knowledgeB. courageC. spirits( ) 13.The old couple always feel__________ because their children don’t live with them.A. lonelyB. afraidC. happy( ) 14.People who are__________ means they have an illness that makes it difficult for them to move around.A. disabledB. worriedC. moved( ) 15. ---the foreign student read the old story, but she couldn’t understand its real__________.---I saw Mr. Li__________ to help her.A. courage, getB. friendship, wantC. meaning, offer( ) 16.A__________ is a person who catches fish, either as a job or as a sport.A. fishermanB. cookC. farmer( ) 17.if you’re__________ for something, it means you’re well prepared for it.A. famousB. readyC. late( ) 18. ---Where can I__________ this kind of shampoo?--- It only__________ in Korea.A. Buy, boughtB. buy, can be boughtC. bought, can be buying ( ) 19. Who__________ this book__________?A. did, writtenB. was, written byC. do, written( ) 20. ---would you like__________ how__________ table tennis?---No. it looks too difficult.---__________ table tennis is easier than you think.A. learning, playing, playingB.to learn, playing, playingC. to learn, to play, playing四．完型填空（15 分）阅读下面短文，从短文后没小题的三个选项中选出能填入空白处的最佳选项。
广东省深圳市高级中学2014-2015学年高二下学期期中考试化学试卷
高级中学2014-2015学年第二学期期中考试高二化学本试卷分为第I卷（选择题）和第II卷（非选择题）两部分，第I卷为1-23题，共52分，第II卷为24-27题，共48分。
全卷共计100分。
考试时间为90分钟。
可能用到的原子量：H-1 C-12 O-16 Na-23 Cu-64 Br-80注意事项：1、答第I卷前，考试务必将自己的姓名、准考证号、考试科目用铅笔涂写在答题卡上。
2、每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑。
如需改动用橡皮擦干净后再涂其他答案，不能答在试卷上。
3、考试结束，监考人员将答题卡收回。
第I卷（本卷共计52分）一．单选题（每小题只有一个正确选项，每小题2分，共计34分）1、下列关于有机物说法正确的是（）A.乙醇、乙烷和乙酸都可以与钠反应生成氢气B.75%（体积分数）的乙醇溶液常用于医疗消毒C.苯和乙烯都可使溴的四氯化碳溶液褪色D.石油分馏可获得乙酸、苯及其衍生物2、下列有机物中，既能发生加成反应，又能发生酯化反应，还能被新制Cu(OH)2悬浊液氧化的物质是（）A．CH3=CH—CHO B．CH3CH2COOHC．CH2=CH—COOCH3 D．CH2OH(CHOH)4CHO3、亮菌甲素注射液曾引起多人中毒死亡的恶性事件。
假药生产中原辅料中应有的“丙二醇”被换成廉价而有毒的化工原料“二甘醇”是致病人死亡的重要原因。
二甘醇的结构简式是HO—CH2CH2—O—CH2CH2—OH。
下列有关二甘醇的叙述正确的是（）A．不能与金属钠发生反应 B．能发生取代反应C．能溶于水，不溶于乙醇 D．符合通式C n H2n O34、系统命名法,的正确的名称是（）A．3，3－二甲基－4－乙基戊烷 B．3，3－二甲基－2－乙基戊烷C．3，3，4－三甲基己烷 D．3，4，4－三甲基己烷5、环扁桃酯具有松弛血管平滑肌、扩张血管的功能，其结构简式如下图。
下列对该物质的叙述中，正确的是（）A．该物质属于芳香烃B．该有机物不能被氧化成醛C．分子式为C17H23O3D．1mol该物质最多可与2 mol NaOH发生反应6、下列分离提纯的方法不正确的是（）7、下列说法正确的是（）A．酯化反应、硝化反应以及酯的水解均属于取代反应类型B．乙醇生成溴乙烷和乙烯生成溴乙烷的反应类型相同C．可用氢氧化钠溶液除去乙酸乙酯中混有的乙酸和乙醇D. 甲烷、苯都属于烃，都不存在同分异构体8、一定条件下，下列物质的主要成分都能发生：取代反应、加成反应、水解反应和中和反应的是（）A．①④ B．②④ C．①③ D．③④ 9、下列说法正确的是（ ）A ．除去乙烯中混有的甲烷，可将混合气体通过酸性高锰酸钾溶液B ．含有醛基和羰基的有机物都能跟银氨溶液发生银镜反应C ．苯乙烯分子中所有原子可能在一个平面上D ．甲酸分子中有醛基，因此无法区别甲醛溶液和甲酸溶液10、有机物分子中原子间（或原子与原子团间）的相互影响会导致物质化学性质的不同。
广东省深圳市2014-2015学年度第二学期深圳市翠园本部八年级期中考试
2014-2015学年第二学期深圳市翠园本部期中考试八年级英语试卷笔试部分（85分）I.词汇测试（15 分）1）从下面每小题的A、B、C三个选项中选出可以替换划线部分的最佳选项，并在答题卡上将相应的字母编号涂黑。
（共8 小题，每小题1 分）( ) 13. After hearing the good news, all of them shouted withjoy.A. sadnessB. happinessC. kindness( ) 14. She raised her hand towave.A. made...cleanerB. moved...furtherC. moved...higher( ) 15. Will you go to the party instead ofme?A.in front ofB.in place ofC.in need of( ) 16. It is unkind to laugh at a person introuble.A. make friends withB. pay attention toC. make fun of( ) 17. The noise is driving memad.A. very quicklyB. very excitedC. very angry( ) 18. If you continue drinking like that, I’ll have to car ry youhome.A. keepB. stopC. avoid( ) 19. It is raining, but we still have to set offnow.A. turn backB. stay insideC. get going( ) 20. Many people in the world are still suffering from hunger andcold.A. dying ofB. far fromC. experiencing2)根据句子意思，从下面每小题的A、B、C三个选项中选出恰当的词语完成句子，并在答题卡上将相应的字母编号涂黑。
广东省深圳市2014-2015学年第二学期实验中学(初中部)八年级期中考试
2014-2015 学年第二学期实验中学(初中部)八年级期中考试英语试题Part Two 笔试部分（60 分）I. 选出可以替换划线部分的最佳选项。
（共10 题, 每题0.5 分）( ) 21. Finally, Linda won the first prize in the competition without difficulty.A. easilyB. slowlyC. carefully( ) 22. It’s a pleasure to welcome you to our library.A. happy thingB. terrible thingC. only thing( ) 23. Are you tired of TV programs yesterday evening?A. bored ofB. bored withC. fed up in( ) 24.I can see the joyon her smiling face.A. happinessB. unhappinessC. sadness( ) 25. She looks after the disabled in healthy recovery center.A. blind peopleB. deaf peopleC. the persons who are not able to walk to move easily( ) 26. He set off for a nineteen-day trip in American three days ago.A. went toB. left forC. both A&B( ) 27.When the bus reached university, Tony rang the bell and they jumped off together.A. leftB. got toC. left for( ) 28.Mr Yang required me to do much homework.A. offeredB. providedC. asked( ) 29.He often raises money for the poor people.A. borrowsB. collectsC. lends( ) 30.After several weeks’ hard work, we made it finally.A. were working on itB. failedC. were successfulII．选择填空。
深圳2014-2015学年第二学期八年级期中考试英语试卷
2014-2015学年罗湖区第二学期八年级期中考试英语试卷II. 选择填空（共20小题，每小题1分）A)从每小题的A、B、C、D四个选项中选出可以替代划线部分的最佳选项。
（共5小题，每小题1分）( ) 16. He made a serious mistake in his work, so he felt very sad.( ) 17. Tom held his head up when he heard that he had won the first prize.A. hasB.keepC. caughtD. kept( ) 18. Simon decided to improve his body language after hearing Mr Yang’s words.A. make …importantB. make ... wellC. make…betterD.make….worse( )19. He set off for Beijing at 8 yesterday morning.A. leaveB. startC. beganD. started( )20.Before you write the article, you should think of the basic idea of your story.B) 从每小题的A、B、C、D四个选项中选出可以填入空白处的最佳选项。
（共15小题，每小题1分）( ) 21.My brother wants to be ________actor but I want to be _______NBA player.A. a, anB. an, aC. the,aD. an, an( )22.——Does the ________ boy feel ________ in the hospital?----No. His friends often go to visit him.A. ill , aloneB.sick, lonelyC.sick, aloneD. ill, lonely( )23.Mary is in good _____because she spends an hour ____around the playground every day.A. healthy, runB. healthy, runningC. health,in runningD. health, on running( ) 24.—Did you feel ______when you saw the old man moving the big stone?--Although he was over 70,_______ he was strong enough to move the heavy stone.A. surprised, /B. surprised, butC. surprising, butD. surprising, /( )25.--Have you tried to stop him __________eating too much junk food?--Yes. But he still keeps ___________ eating a lot of fried chicken wings.A. from, fromB. from , /C. /, fromD. for, from( )26.--_________ can cormorants stay under the water?--_________ up to two minutes.A. How soon, ForB. How often, /C. How long, ForD. When ,For( )27.---___________ will the weather be like tomorrow?--There will be a thunder storm. I don’t know _____ to do when the storm comes.A. What, howB. How, whatC. How, howD. What, what( ) 28.—The old man is ill. He ________ to the hospital at once.--Don’t worry. A doctor _________to come already.A. must be sent , has askedB. must send, have askedC. must be sent, has been askedD. must send, have been asked( ) 29.—Why not _______us and have a good time at the party?---I would love to. ________ I have a lot of homework to do.A. join in , ButB. take part in, AndC. join, AndD. join. But( )30. –Do you mind my ______ here?--___________. Smoking is not allowed here.A. smoking , Please don’tB. smoking, Yes, of courseC. smoke, CertainlyD. to smoke, Sorry.( )31.---How much did you_______ for the new ipad?--It _______ me 5000 yuan.A. spend, tookB. cost, paidC. pay, costD. paid, cost( )32.---Who _______ the book _______?--- It was written by Lu Xun.A. is …written by B did ,write C. was, written D. was, wr itten by( )33.--What is the shirt made _____?--Silk(丝绸). It’s made _________ Shanghai.A. from, inB. of ,byC. of, inD. from, into( )34.—When did you________?--I _________ the airport at 8 a.m. this morning.A. arrive, arrived atB. get to, got toC. reach, reachedD. arrive, got( )35. Which of the following is right?A.He goes to fishing every weekend.B.I am looking forward to visit Beijing soon.C.Many trees have planted since last year.D.You had better not leave here before I come back.III. 完形填空（共10小题，每小题1分）You are 21 years old and live a happy life.36________ one day, your doctor tells you that you have a serious disease and may not live more than one year.How would you 37 ____ ? What would you do? I think most of us might feel very 38_____ and give up our dreams and hopes for the future. Here is 39_____ one of the greatest scientists, Stephen Hawking , did.Hawking didn’t let the disease stop him from living his dream life. He went on with his study of the universe (宇宙) and 40_____ around the world to give talks . In 2002, Hawking visited China and 41_____ to students in Hangzhou and Beijing. Because of the disease，Hawking had to sit in his wheelchair and speak 42_______ a computer. He told the students about his theories（理论）on some questions, for example,43_____ time is , how the universe began, and what black holes are. Hawking became famous in the early 1970s. In 1988, he wrote A Brief History of Time. The 44_____ explains a difficult theory in an easy way and it sold very well. Stephen Hawking is a man with a 45_____ will（意志）and people think he is the greatest scientist in physics since Albert Einstein.A B C D( )36 And But So Or( )37. do study stay feel( )38. happy tired sad excited( ) 39. where when how what( )40 . walked turned travelled looked( )41. told said shouted spoke( )42. of in through for( )43. how when where what( )44. book man talk question( )45. big dark strong newIV. 阅读理解（25分）阅读下列短文，从每小题的四个选项中选出最佳答案。
广东省深圳市2014-2015学年第二学期深圳市第二实验学校八年级期中考试
2014-2015 学年第二学期深圳市第二实验学校八年级期中考试英语试题笔试部分（共85分）I. 词语释义。
A.从下面每小题的 A、B、C 三个选项中选出可以替换画线部分的最佳选项。
（共 5小题，每小题 1分）( ) 16.I think we should raise something for the students in some poorplaces.A. collectB. getC. pick( ) 17.—I’m going out for awhile.----Ok, I will see youlater.A. yetB. funnyC. afterwards( ) 18.A lot of things are required to finish thework.A. orderB. neededC. allowed( ) 19. The homework is very simple, so I can finish it bymyself.A. ordinaryB. difficultC. easy( ) 20. This is an important stage for you to besuccessful.A. choiceB. stepC. directionB. 从下面每小题的 A、B、C 三个选项中选出可以填入空白处的最佳选项。
（共 10 小题，每小题 1 分）( ) 21.Something __________ means it is in a very bad situation.A. comfortableB. practicalC. serious( ) 22.The word’ __________’ means wearing attractive and fashionable clothes.A. kind-heartedB. home-madeC. well-dressed( ) 23. ---- Mom, Peter __________ to teach me to play table tennis.---- How lucky you are! He is good at teaching and playing table tennis.A. providedB. offeredC. took( ) 24. ---- last Sunday was so __________.I spent all day watching TV at home.---- Me too. I could hardly find anything else to do.A. boredB. boringC. bore( ) 25. ----you’d better stop smoking, or you’ll __________ various illnesses.---- Ok, I’ll listen to you.A. suffer inB. learn aboutC. suffer from( ) 26. We may never know what __________ that day.---- I think so, but I am very curious to know all about it.A. took placeB. took offC. took in( ) 27. when do you come back home?---- __________.we started at 8 am and finished it until that time. It took us about 12 hours to finish it.A. At noonB. After noonC. After dark( ) 28. ----- how horrible it is! This place is serious polluted.----Yes. The residents will __________ live here.A. no matterB. no moreC. no less( ) 29. ----Do you know when your brother __________ yesterday?----Yes, he left at about 5pm.A. turned offB. got offC. set off( ) 30. ---We will __________ anther team in the football match tomorrow. I’m so nervous.---Having a good rest is the most important thing you need to do now.A. play withB. play onC. play againstII.完型填空（15 分）阅读下面短文，掌握其大意，然后从各小题的 A、B、C、D 四个选项中选出最佳答案。
广东省深圳市福田区2014-2015学年八年级下学期期末考试物理试题(扫描版 有答案)
2014-2015学年第二学期教学质量检测八年级物理答案和评分意见一、选择题（每小题2.5分，共50分）二、实验题（每空1.5分，共18分）21．（9分）（1）_匀速直线__；（2）_粗糙程度_；（3）____甲____；____丙____；（4）____C____；__错误______；22．（9分）（1）物体排开液体的体积；_在液体密度相同时，物体排开液体体积越大，物体受到的浮力越大；（2）_①④⑤_；（3）_物体受到的浮力大小与物重无关；（4）_①④⑦（或①⑤⑦）；在物体排开液体的体积一定时，液体的密度越大，物体受到的浮力越大；三、计算题（共24分）23．（6分）解: （1）自行车对地面的压力：…………………………0.5分……0.5分故自行车对地面的压强：…………………………………………1分…………………………0.5分………………………………0.5分（2）小明骑车匀速行驶时受到的阻力：f=0.06G=0.06×700N=42N ………1分小明克服阻力做功的功率：………………………………1分…………………0.5分=201W…………………………0.5分24．（8分）解: （1）W有=Gh…………………………………………………1分=300N×1m=300J；……………………………………………1分（2）拉力做的功W=Fs……………………………………………………0.5分=200N×2m=400J………………………………………0.5分拉力的功率P=W/t………………………………………………………1分=400J/10s=40W；…………………………………………1分（3）机械效率为：η= W有/W…………………………………………………1分=300J/400J……………………………………………1分=75%…………………………………………………1分25．（10分）解: （1）ρ物=G/vg……………………………………………1分=1.5×105N/(1m3×10N/kg) …………………………………1分=1.5×104kg/m3…………………………………………1分（2）F浮=ρ液v排g………………………………………………………………1分=1.0×103kg/m3×0.5m3×10N/kg……………………………………1分=5×104N……………………………………………………………1分（3）设绳子对物体的拉力为F B，则F B+F浮=G…………………………1分F B= G-F浮=1.5×105N-5×104N=1×105N…………1分根据杠杆的平衡条件F×AO= F B×BO……………………………………………………1分F= F B×BO/AO=1×105N/2………………………………………0.5分=5×104N……………………………………………0.5分四、应用题（每空2分，共8分）对于其它说法只要正确酌情给分。
广东省深圳市2014-2015学年第二学期深圳中学八年级期中考试
2014-2015学年第二学期深圳中学八年级期中考试英语试题I.A)词语释义。
（每小题1 分，共5 分）( ) 1. I can get a lot of joy from helping others.A. experienceB. timeC. sadnessD. happiness( ) 2. We may never know what took place that day.A. arrivedB. happenedC. missedD. produced( ) 3. They decided to go on a picnic, but they haven‟t decided when to set off.A. act outB. enterC. take outD.leave( ) 4. Tim never cares about his appearance.A. feelingsB. looksC. signD. gestures( ) 5. They promised that they could finish the work on time.A. believedB. said for sureC. liedD. sighedB)从A.B. C. D 四个选项中选出可以填入空白处的最佳选项。
（每小题1 分，共15 分）( ) 6. --- What do you think of the teacher?--- She is __________expert in our school and she often gives us__________.A. an, much adviceB. the, many adviceC. much advicesD. /; many advices ( ) 7. --- Mum, can I have__________ chocolate?--- Jim, you mustn‟t eat__________ if you want to lose weight.A. some more, too manyB. more some, too muchC. any more, too littleD. some more, too much( )8. --- How much dothey on building thestadium?--- Forty yuan.A. spend, millionB. take, millionC. cost, millions ofD. pay, million of( ) 9. --- I can‟t which pair of jeans to buy. They both look good on me.--- I prefer the black one ________a shiny flower on it.A. prefer, toB. decide, toC. prefer, withD. decide, with ( ) 10. --- It‟s generous ________you ________the poor children so much money.--- I just want to do something for them.A. for, to giveB. of, to giveC. for, giveD. of, give ( ) 11. --- How did you ________Coco‟s speech?--- She made a good impression us yesterday.A. think, atB. think of, onC. like, atD. like, on ( ) 12. --- The chair was broken, so Tom fell.--- This chair is not ________for him to .A. strong enough, sitB. strong enough, sit onC. enough strong, sitD. enough strong, sit on( ) 13. ---Is it from the park to your home?--- It is about ________walk.A. How long, ten-minuteB. How far, ten minutes‟C. How long, ten-minutesD. How far, ten minute‟s( ) 14. --- Would you mind if I ask you to look after my pet dog while I ________?--- ________.A. leave, Yes, of courseB. am away, Yes, of courseC. leave, No, of course notD. am away, No, of course not( ) 15. I think English is as ________as Maths.A. more interestingB. most interestingC. the most interestingD. interesting( ) 16. The good news made us ________excited. We couldn‟t wait to tell everybody about it.A. feelB. feltC. to feelD. feeling( ) 17. Your application won‟t until you complete the survey.A. acceptB. receiveC. be acceptedD. be received( ) 18. The top students often sayEnglish for 15 minutes every day is one of the good ways to improve English.A. readingB. readC. readsD. to reading( ) 19. You don‟t give people a good ________, so people chose Debbie instead of you.A. impressionB. instructionC. impressiveD. instruct( ) 20. In order ________ for the meeting, my sister forced herself to get up early this morning.A. not being lateB. to be lateC. being lateD. not to be lateII. 完型填空（每小题1 分，共10 分）Life in 30 years will be 21 because many changes will take place, but what will the changesbe？The population is growing fast. There will be 22 people in the world and most of them will live longer than before. Computers will be 23 smaller and more useful，and there will be at least one in every home. And computer studies will be one of theimportant 24 inschool.People will work fewer hours than they are doing now, and they will have more free time forsports, watching TV and traveling. Traveling will be much cheaperand 25 . And many more people willgo to othercountries 26 holidays.Therewillbechangesinourfood,too.Morelandwillbeusedfor 27 new towns andhouses. Then there will beless 28 for eat more vegetables and fruit instead. Maybe people will behealthier.Work in the future will be different, too. Dangerous and hard workwill 29 byrobots. Becauseof this，many people will nothave 30 to do. This will be aproblem.( ) 21. A. same B. difference C. different D. difficulty ( ) 22. A. little and little B. less and less C. many and many D. more and more ( ) 23. A. much B. many C. more D. most( ) 24. A. subject B. subjects C. way D. games( ) 25. A. easily B. more easily C. easy D. easier( ) 26. A. for B. with C. at D. in( ) 27. A. build B. building C. to build D. builds( ) 28. A. rooms B. room C. spaces D. sea( ) 29. A. done B. do C. be done D. be did( ) 30. A. works enough B. enough works C. work enough D. enough work III. 阅读理解（每小题1 分，共20 分）AInthedayswhen an icecreamsundae(加水果或奶油的较贵的) costmuchless, a 10-year-old boy entered ahotel coffee shop and sat at a table. A waitress (woman assistant) put a glass of water in front ofhim.“How much is an ice creamsundae?”“Fifty cents”, replied thewaitress.The little boy pulled his hand out of his pocket and studied a number of coins init. “Howmuchisadishofplainicecream?”heasked.Somepeoplewerenowwaitingforatableandthewaitr ess was a bitworried.“Thirty-five cents,” she said rudely(notpolitely).The little boy again counted the coins. “I‟ll have the plain ice cream,” hesaid. Thewaitressbroughttheicecream,putthebillonthetableandwalkedaway.Theboyfinishedtheicecrea m, paid the bill at the counter(柜台) and wentout.Whenthewaitresscameback,shebegancleaningthetableandthenshecouldn‟tbelievewhatshehadseen. There, placed nearly beside the empty dish, were two five-cent coins and five one-centcoins---hertip（小费）.( ) 31. In this story “plain” means________ in Chinese.A. 平原B. 普通C. 朴素D. 清楚( ) 32. An ice cream sundae was________ a dish of plain ice cream.A. fifteen cents cheaper thanB. fifteen cents dearer thanC. fifty cents dearer thanD. as expensive as( ) 33. How much money did the boy probably have in his pocket?A. Just fifty cents.B. More than fifty cents.C. Not more than fifty cents.D. Less than forty cents.( ) 34. Why did the little boy have only a dish of a plain ice cream?A. The plain ice cream cost him much less.B. He enjoyed the cheaper ice cream better.C. The coins were not enough for an ice cream sundae.D. He wanted to save some coins to tip the waitress.( ) 35. We can imagine that the waitress might feel when she got the tip.A. very surprisedB. a bit of shame（羞愧）C. quite pleasedD. a little worriedBIn the late 1800s, people came to our country from all around the world to live in freedom. Jane Addans wanted to help these immigrants get used to their new home.She knew that the new immigrants in the United States needed a fair chance to succeed. She opened a special place where immigrants could get help, then they could build new lives.Jane Addam started Hull House in Chicago, in 1889. Hull House quickly became an important part of the area. It had a small hospital, a child care-center, a kindergarten, and a playground. It had classes where people could learn English, art and music. People who worked in Hull House also worked to get cleanerstreet and better housing in the city.Because of the Jane Addam, many immigrants get used to their new lives more easily. Because of her work, Adam was given the Nobel Peace Prize in 1931. She was the first American woman to win this prize. The prize is given every year to a person who has worked hard to help the world peace( ) 36. Hull House was for peoplewho________.A. want me to make moneyB.had their own homes,C. wanted to learn somethingD. came from other countries,( ) 37. The first two paragraph tell us________.A. how Jane Addam started Hull HouseB.who needed a fair chance to succeedC. why Jane Addam started Hull HouseD. why immigrants lived from freedom( ) 38. What did not Hull House provide?A. a marketB. a kindergartenC. a playgroundD. a hospital ( ) 39. What did Jane Addam get by starting Hull House?A. She got cleaner streets.B. She learned a lot of English.C. she got Nobel peace prize.D. she got used to her new life.( ) 40. The writer wrote the passage to________.A. introduce an important person,B. teach us some musicC. tell us a funny storyD. encourage us to work hardC( ) 41. What is the party for?A.Having a special animal.B.James‟ ninth birthday.C. walking through the forest.D.an important festival. ( ) 42. What did the writer of card 2 do on the beach?A.She built a sand castle.B. she read books,C. she play with a dog.D. she drank juice, ( ) 43. which of the following is not true about card three?A. There was a giraffe in the forest.B. There was someone living in a forest.C. There was a river in the forest.D. There was a person smoking in the forest.( ) 44. What's Kyle's problem?A. he was a new student.B.he wanted to play football.C. he couldn't hear kids laughing.D.he didn't know how to make friends.( ) 45. What would he do next?A. He would play with others.B. He would go back to the classroom.C. She would play along.D. she would go to a forest.DStress is a normal physical response to things that make people feel worried or break their balance of life in some way.Stress isn't always bad. Sometimes, people‟s stress is important during emergency situation, such as when the driver has to stop his car to avoid an accident. Sometimes, stress can help people do their best, like while getting ready before a big competition or exam.However, too much or long term stress gives people a stress overload. People with stress overloads may have problems remembering or concentrating on things. They are quick to get angry or lose patience. They may even have other problems, such as sleeping problems, headache and often getting colds.What are some ways to deal with stress?Ask for helpEveryonehasstress.Formanypeople,stressissocommonthatithasbecomeawayoflife.Don'tbetooshyto tell your parents or teachers that you are having a hard time. They may comfort you or give you someuseful advice. Sometimes just sharing your problems with someone else can make you feelbetter,Solve the little problems,Developskillstocalmlylookattaproblem,chooseawaytosolveitandtakeaction.Solvingthelittleproble ms successfully helps to build confidence to move on life‟s biggerones.Learn to relax,Activities that make people clam and happy can help manage stress. For example, reading a good book,enjoying music, spending time with your parents, getting a good night sleep, or just taking a relaxing bath are all goodways to reduce yourstress.Encourage yourself with positive wordsWhenyou'reunderyourstress,sayingcertainthingstoyourselfmayhelpyoufeelmoreconfident.Forexa mple you might tell yourself, …I will do the best that I can.” or “I can handle this if I take it one step at atime.( ) 46. People with stress overloads maya. have trouble concentrating on thingsb. have good memories,c. have sleeping problems,d. easy to get impatient.A. abdB. acdC. abcD. bcd( ) 47. Which of the following is true?A. stress is a kind of serious heart disease.B. stress is always bad for people.C. stress is always useless for an exam.D. stress is greatly needed sometimes. ( ) 48. Which is not the way that people solve their stress?A. sharing problems with others to get help.B. relaxing by enjoying music,C. try to be confident.D. having disagreement with someone else.( ) 49. What does the underlined word handle in the last paragraph mean in Chinese?A.处理B. 触摸C.把柄D.搬运( ) 50. The purpose of this article is to tell us________A. How to get good results with the help of stress.B. what a strength overload is and how to get rid of it.C.how to deal with stress and reduce it.D. what problems stress of those might cause.IV.句型转换：（每空一词，10 小题，每小题1 分，共10 分）51. Helen is brave. Sue is brave,too.（合并为一句）Helen is________brave________Sue.52. Tom won‟t visit the farm. He‟ll stay at home.(改为同义句)Tom will stay at home ________________visiting the farm.53. Theteacherwenthomeafterhewentoverthestudents‟homeworkyesterday.(改为同义句)The teacher________go home________he went over the students‟ homework yesterday. 54. Shanghai is larger than any other city in China. (改为同义句)Shanghai is________________________in China.55. He gets up early. He wants to finish the work first.(合并成一句)He gets upearly________________________finish the workfirst.56. You‟d better cook chicken soup tonight.（改为否定句）You‟d________________cook chicken soup tonight.57. I am given a birthday present by my parents every year.(改为同义句)A birthday present________ ________ ________ ________ by my parents every year.58. To plant trees every year is necessary forus.（改为同义句）________ ________ ________ for us to plant trees every year.59. This makes me feel thirsty.(改为被动语态)I________ ________ ________ feel thirsty by this.60. She learns English by listening totapes.(对划线部分提问)________ ________ she learnEnglish?V. 语法填空：（阅读短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入适当的词或是使用所给词的适当形式填空）Thomas Edison was a great American61. ________ (invent).When he was a child, he was always62. ________ (ask) questions and trying out new ideas. No matter 63. ________hard it was, he never gave up.Young Tom was in school for only three months. His teacher didn‟t understand why he had 64. ________ many strange questions. Most of them were not about his lessons. The teacher didn‟t want to teach Tom any 65. ________ (many). He asked Tom‟s mother to take the boy home. Tom‟s mother taught him to read and write, and she 66. ________ (find) him to be avery good pupil. He learnt very fast and became very 67. ________ (interest) in science.One day,he saw a little boy 68. ________ (play) on the railway tracks at a station. A train was coming near quickly, and the boy was too frightened to move. Edison rushed out and made the boy 69. ________ (sa fety). The boy‟s father was so 70. ________ (thank) that he taught Edison to send messages by telegraph.VI.书面表达（15 分）每年的8 月8 日是“全民健身日”，为了让这项活动更深入人心，深圳某英语杂志运动与健康栏目正在以“Let‟s Do Exercise Together”为题，向广大学生征文，请你根据下面的表格中的要点提示写一篇文章，向该栏目投稿。
广东省深圳市2014-2015学年第二学期实验中学(中学部)八年级期中考试
2014-2015学年第二学期实验中学(中学部)八年级期中考试英语试题笔试部分（85分）I.词汇测试（30 分,共30 题，每题1 分）1）从下面每小题的A、B、C 三个选项中选出可以替换划线部分的最佳选项( ) 21. When I told him the news, he expressed his surprise.A.knewB. showedC. impressed( ) 22.You can‟t go out at night unless you get your mother‟s permission.A. agreementB. kindnessC. message( ) 23.His appearance attracts many people.A. behaviorB. lookC. action( ) 24.Whatever she does, he believes in her all the time.A. The whole timeB.at the momentC. sometimes( ) 25.I‟m going to set off for Beijing tomorrow morning.A. travelB. comeC. leave( ) 26.When the little boy found the new bike under the Christmas tree, his eyes popped out.A. his eyes were hurtB. he felt boredC. he felt excited2)根据句子意思，从下面每小题的A、B、C 三个选项中选出恰当的词语完成句子. ( ) 27.__________ are young people between 13 to 19.A. TeenageB. TeenagersC. Teenaged( ) 28.She is__________ and she hasn‟t been able to see since she was three years old.A. blindB. deafC. unhappy( ) 29.Jimmy behaved so well that he made a deep__________on the audience.A. impressionB. requirementC. communication( ) 30.Your eating habit have__________ your health.A. effect toB. effect onC. result of( ) 31.From his__________,we can imagine the__________ of the island.A. describe, mysteriousB. description, mysteryC. description, mystery ( ) 32.Yesterday I__________ an invitation from Tom but I didn‟t__________ it.A. received; accepted B .accepted; receive C. received; accept ( ) 33.---Why should red dresses__________ on the wedding in China?---Because red is a__________ of good luck.A.be worn, symbolB. wear; symbolC.be worn; reason( ) 34.---The movie star appears to be__________ his forties.---He is 53 years old. Most of the__________ look younger than their real age.A. on; actorsB. in; actorsC. in, directors( ) 35.---Thank you for coming to see me.---__________A. It‟s a pleasureB. With pleasureC. No problem( ) 36.---__________!A car is coming.---Playing football should be full of__________,but playing in the street is too dangerous.A. Look at; dreamB. Look out; dreamC. Look out; fun( ) 37.---Mom,Tom and Jerry is so interesting that I can‟t stop__________ again.---But I have to give you a(n)__________.Watching too much TV isn‟t good for your eyes.A.to watch; warningB. watching; warningC.to watch; example ( ) 38.---Do you have difficulty__________ the work in two days?---Of course not. It‟s easy__________ me to do it.A.finishing; forB.finishing; ofC.to finish;forD.to finish;of( ) 39.---Did you__________ money for the house?---No, I am too busy__________ it.A. spend; to doB. pay; to doC. spending; doingD. pay; doing ( ) 40.---They should raise__________ spirits to face difficulties.---We‟d better__________ them.A. their;encourageB. their; to encourageC. spend; doingD. pay; doing( ) 41.---Children here are__________ from different illnesses.---We must do something__________ them.A. suffering; tohelpB. suffering;helpC. running; tohelpD. running;help ( ) 42.---Great changeshave__________ in my hometown.---Yes. Look! There__________ many beautiful parks and buildings now.A. taken place;wereB. taken off;wereC. taken place;areD. taken off;are ( ) 43.---What should I do if I__________ with you?---You should__________ your head.A. will agree; nodB. agree; nodC. will agree; loseD.agree; lose ( ) 44.---__________ the thief__________ by the policeman?---Yes. Mr Wang caught him while he was having lunch in a small restaurant.A. Has caughtB. Does; catchC. Has; been caughtD. Is; catching ( ) 45.---I__________ to a party, but I‟ve got nothing to wear.---So, I have to ________ some clothes.A. would be invited, to buyB. will invite, buyC. have invitedD. have been invited, buy( ) 46.---We can use QQ to communication with each other online.---Really? Could you please show me__________ it?A. what do toB. how to doC. when to doD. why do( ) 47.It is a problem that doesn‟t need__________ right now.A.to solveB. solvingC. being solvedD.tobe solving ( ) 48.These animations are worth__________.A. watchingB. watchC.to watchD.be watch ( ) 49.The machine are made__________ at full speed.A. workB. workingC.to watchD.tobe worked ( ) 50.All of us are looking forward to__________ the 30th anniversary of SZSY.A. haveB. havingC. takeD. have haII.完型填空It was early summer, and the weather was really hot. Mike‟s mom told him that they would be going to the beach on Saturday .Mike was 51 .He couldn‟t wait to practice swimming.The drive to the beach was only one hour, but it seemed 52to Mike. Finally, they 53the beach. Mike helped his mom take the beach blankets, his sand toys and some snacks out of the car. Mom found a good place on the sand and put the 54down.Sitting close to them was a boy at about Mike‟s age. He came over and55his name was Gary and asked if Mike wanted to build a 56castle with him. Mike 57.The two boys built a great sand castle. They decided to dabble(玩水) in water. The boys ran in and out of thewater and jumped through the waves 58.Suddenly, they run to jump in a big wave, but Mike couldn‟t find Gary. Mike looked around and finally saw him waving his hands shouting for 59.Mike swam to Gary and took him out of the water. Since then, the boys became 60and so did their moms.( ) 51.A. surprised B. excited C. nervous( ) 52.A. years B. minutes C. moments( ) 53.A. reached B. saw C. mentioned( ) 54.A. car B. toys C. blankets( ) 55.A. said B. spoke C. called( ) 56.A. sand B. wooden C. brick( ) 57. A. agreed B. promised C. refused( ) 58. A. crying B. fighting C. laughing( ) 59. A. fright B. help C. happiness( ) 60.A. friends B. classmates C. BrothersIII.阅读理解（25 分）阅读下列短文，从下面每小题的A、B、C、D 四个选项中选出最佳选项（共25 小题，每小题1 分）ATwo ill parents were sitting on a hospital bed. One man was allowed to sit up in his bed for an hour each afternoon. His bed was next to the room‟s only window. The other man had to spend all his time flat on his back. The men talked for hours.Every afternoon the man by the window would describe to his roommate all the things he could see outside the window. The other man loved these moments. It was only then that he could “see” the outside world.The window overlooked a park with a lovely lake. Couples walked arm in arm. Big old trees dotted the landscape. The beautiful city skyline could be seen in the distance.However, one morning the nurse discovered that the man next to the window had died. Soon the body was taken away. After an hour, the other man asked if he could be moved next to the window. Slowly, the man propped himself up to take his first look at the world outside.It faced a blank wall. The man asked the nurse why the other man would lie. The nurse responded that the man was blind. She said:“Perhaps he just wanted to encourage you .”Today will never come again. Be a friend. Encourage someone. Take time to care. Let your words heal and not wound.( ) 61. How many windows are there in the room?A. noneB.oneC. twoD. three( ) 62.The underlined word “dotted” in the passage means“_________”in Chinese.A.美化B.位于C.隐藏在D.点缀( ) 63.Which of the following is true according to the passage?A. Both of the ill parents can‟t see anythingB. There is really a park with a lake outside the hospital.C. The outside world is just made up by the blind man.D. The man who can just lie on bed is angry at last.( ) 64. According to the writer, what should not a friend do?A. Try to encourage othersB. Take time to care othersC. Hurt others by wordsD. Say some warm words( ) 65. What‟s the best tittle of this passage?A.A story between two patientsB. See the beauty to encourageC.A blank wallD. Do not lie to our friendsA.It can tell people‟s heat rateB. People can make calls with itself.C. It can help users to be healthyD. Users can keep fit with its help.( ) 67.The underlined word …thermometers” in the passage means “________”in Chinese.A.测量仪B.气压计C.温度计D.米尺( ) 68. How can people use TemTraq?A.Put it under the armpitB. Hold it in the mouthC. Place it on your phoneD. Stick it under the arm( ) 69.Which of the following is not true about the Baymax USB?A. It is originated from a movieB. It is less than 50 grams.C. It cost 189 yuan onlyD. It is hard to carry it everywhere( ) 70.Where may this passage come from?A. a newspaperB. a travel guideC. a storybookD. a mapCIt is better to let your hands lie loosely(松散地)on your leg or place them on the armrests(扶手)of your chair. If so, it‟s also easy to support your words with hand gestures. Don‟t fold your arms across your body. It‟s unfriendly.Nodding your head is a good way of supporting your words. Making movements with your hands shows that you feel relaxed. In most cases it is better not to make too many hand movements at the start of the interview. Payattention to your interviewers as well: if they use their hands a lot to make things clear, you can do this as well .But not all movements are helpful, for example drumming(连续敲击)with your fingers. So pay attention!Knowledge of body language can help you succeed during the interview. You can use this knowledge to hide your nervousness a little. Your nervousness may even show that you feel this job is important to you .If you weren‟t nervous, it might show that you are not interested.( ) 71. What should you do next after introducing yourself?A.Shake hands with the interviewerB. Get a good jobC. Ask the salaryD. Take a seat( ) 72. The underlined word fold means“________‟‟in the passage.A.分散B.折叠C.笼罩D.交叉( )73.If you want a job, what shouldn‟t you do during an interview?A.Fold arms across your bodyB. Pay attention to your interviewers.C. Use hand gestures for helpD. Arrive there on time( ) 74. Which movement isn‟t helpful for you to get a job?A.Paying attention to your interviewers as well.B. Drumming with your fingers.C. Nodding your head.D. Hiding your nervousness a little.( ) 75. What does the text mainly tell us?A. Not all movements are helpfulB. Place your hands on your chairC. Body language can help you find a jobD. Suggestions for interviewDTraditional Chinese opera is finding new life in a different art form. More than 100 primary school teachers came to a training court to pass on the art to school children. After learning Chinese opera-Themed(以戏剧为主的)cartoons, they are now confident that they can spark(激发)children‟s interest.These school teachers proved to be quick learners in Chinese opera. They are practicing a classic piece of YuejuOpera, a major branch of the Chinese opera family.Fang Ting ting,the performer of Shanghai Yueju Opera Troupe, said,“I was actually nervous about teaching them, because I thought they may not be interested .But their passion (热情)swept away my worries.I think they will do well in helping Chinese opera.”Cartoon naturally attract the attention of children. Introducing Chinese opera to them in this way is proved to be great.Liu Hui, a school teacher, said,“The children are really interested in the cartoons. As teachers, we give them some direction and they start to copy the movies in the opera.The teachers also believed this digital method really builds a bridge between the children and this traditional art form. And it really helps them learn the rich culture of China. They are glad to be trained here to take on this task.( )76.In the training court,the teachers might mainly learn________.A. how to be kind to school childrenB. how to write cartoon storiesC. how to perform Yueju OperaD. Chinese opera-themed cartoons.( )77. From the fact that________, we know the teachers were quick leaners.A. they are practicing a classis people of Yuju OperaB. they have sparked children‟s interested in Chinese operaC. they have decided to become performers of Chinese opera.D. they have found a new way to perform Chinese opera.( )78. Fang Tingting was not nervous anymore,because________.A. she comes from Shanghai Yueju Opera Troupe, too.B. the teachers were not interested in traditional Chinese Opera.C. the children showed great passion in learning from herD. she knows the children are clever enough.( )79.The underlined word” them” in paragraph 4 refers to________.A. teachersB. performersC. cartoonsD. children( )80. It becomes easy to pass on traditional opera to children in the new way, because________.A. tradition Chinese opera is our nation treasureB. the children are naturally interested in the cartoonsC. the children are really interested in traditional operaD. the children‟s teachers are interested in traditional opera.EOn April 24,1990,the world of science reached a new milestone(里程碑)The US Space Agency launched(发射)Hubble Space Telescope into space. It then began its exploration of the universe.Hubble is the first large telescope to be sent to space. Its job is to orbit(绕轨道而行)Earthandtake a lot of pictures of the universe. It is 13.2 meters in length and weighs 11,110kg.It works differently to your school telescope, which helps you see an object larger and clearer. Hubble works by collecting light. The bigger the mirror is, the more light it can collect. Its mainmirror is 2.4 meters. How good is its view? Scientists says that it‟s like seeing a pair of fireflies(萤火虫)in Tokyo from a home on the east of the US.Hubble‟s discoveries have led to some major breakthroughs(突破).It proved that the universe wasactually speeding up, not slowing down. It discovered black holes. Also, with the help ofHubble, scientists have a more accurate answer of the age of the universe;13.7billion.So how long will Hubble work for us? While there is no expected date. Bu t when Hubble‟s days of exploration come to an end, its discoveries will still stay with us. Itssuccessor, the Webb Space Telescope, is being put together as we speak. With a much more powerful telescope, we can onlywait to be in awe of (对……敬畏)its future discoveries.( ) 81. Which of the following about the Hubble Space Telescope is NOT true?A. It began to explore the universe in 1990.B. It‟s the first large telescope to be sent to space.C. It orbits Earth and takes pictures of the universe.D .It has stopped working because it‟s too old.( )82. From Paragraph 3,we learn that________.A. Hubble works similar to school telescope.B. light is important for Hubble to work.C. it‟s better to use a smaller mirror for Hubble.D. Hubble can see fireflies on Earth in space.( )83.After years of works Hubble found out that________.A. the Earth is roundB. the universe was slowing downC. there are black holes in the universeD. the universe will explode in 13.7 billion years.( )84.What‟s the underlined word“successor” mean?A. A telescope that is successfulB. A telescope that will replace Hubble.C. A telescope that will replace Webb SpaceD. A telescope that will go into space.( )85.The world of science reached a new milestone because________..A. Hubble was sent into space to explore the universe.B. It was discovered that the universe is slowing down.C.Many black holes were discovered.D. The Webb Space Telescope was put into use.IV. 语法填空（10 分）Hearing is very important to all of us. We can hear beautiful music, nice songs of birds, the laugher of people or other different kinds of (1) __________ (sound) in the world with our ears. So we must try to protect our ears. The following will tell you how to protect ears.Listening to loud music a lot can be bad for ears, (2) __________ (especial)when headphones(耳机) (3) __________(use).So turn down the volume (音量)when you‟re wearing headphones or try not to wear headphones. You should give your ears a rest. (4) __________ you like wearing headphones.Before swimming, remember to put earplugs (耳塞)into your ears (5) __________ wear a swim hat to stopwater from (6) __________ (get) into your ears.If you are going to a concert, wear earplugs (7) __________ (protect) your ears from the terrible music! In fact, special earplugs (8) __________ (can make)for you if you go to concerts a lot or if you are a musician yourself.See a doctor if your ears hurt. Take (9) __________ medicine. If the doctor asks you to do to so. Following t he advice above now and you won‟t be saying “what” (10) __________ you arelistening to others.V. 书面表达（10 分）假如你是Molly，请根据下面的中文提示写一篇英语作文，介绍你最欢的卡通人物Snoopy。
广东省深圳市2014-2015学年第二学期北师大南山附属学校八年级期中考试
2014-2015学年第二学期北师大南山附属学校八年级期中考试英语试题II. 单项选择题。
（共25 小题，每小题1 分，共25 分）A)词语释义。
（共10 小题，每小题1 分）从下面每小题的A,B,C,D四个选项中选出可以替换划线部分的最佳选项。
( ) 26. I can get a lot of joy from helping others.A. experienceB. timeC. sadnessD. happiness ( ) 27. We may never know what took place that day.A. arrivedB. happenedC. missedD. produced ( ) 28. It is not easy work. It requires a lot of carefulness.A. needsB. findsC. paysD. crosses( ) 29. We didn’t know what to do in the last stage of the experiment, so we asked our teacher for help.A. classB. examC. wayD. step( ) 30. He was famous writer in the past, but he writes no more mow.A. no matterB. no lessC. no longerD. no better ( ) 31. The boy in red reminds me of my elder brother.A. makes me think ofB. asks me to talk aboutC. suggests me writing toD. helps me find( ) 32. My English got better with the help of my teacher.A. changedB. increasedC. improvedD. happened ( ) 33. Unluckily, it rained, so we didn’t go to the park.A. UnhelpfullyB. UnfortunatelyC. UnfairlyD. Unlikely ( ) 34. Sara appears to have many friends.A. wants toB. seems toC. likes toD. wish to( ) 35. Helen kept talking to the girl and tried to raise her spirits.A. cheer her upB. let her downC. set her freeD. maker her angryB)选择填空。
广东省深圳市文汇中学2014-2015学年八年级英语下学期期中试题 人教新目标版
文汇中学2014-2015学年第二学期期中考试八年级英语试卷班级_________ 学号_________ 姓名：_________一、听力部分（15分）I. 听录音，选出你听到的句子。
句子念两遍。
（共3小题，每小题1分）( ) 1. A. We should try to help people in need when we are free.B. We should try to help people in need in our free time.C. We should try to help old people in need in our free time.( ) 2. A. Our head master taught us something about body language just now.B. Our teacher taught us something about body language just now.C. Our teacher taught us something about body language yesterday.( ) 3. A. I can know people's feelings by seeing their body language.B. I can know people's true feelings by seeing their gestures.C. I can know people's feelings by seeing their facial expressions.II．听录音，在A、B、C选项中选出与你所听到的句子的意思最相近的句子。
每小题念两遍。
（共2小题，每小题1分）( ) 4. A. What do you think of Chinese painting?B. How do you paint Chinese painting?C. How much is that Chinese painting?( ) 5. A. She is rich, so she always sends some money to some poor students.B. Though she is rich, she never sends any money to some poor students.C. She is not rich, but she always sends some money to some poor students.III．听句子，选择最佳答句。
2014-2015年广东省深圳市北环中学八年级(下)期中数学试卷(解析版)
2014-2015学年广东省深圳市北环中学八年级（下）期中数学试卷一、选择题（本题共有12小题，每小题3分，共36分，每小题有四个选项，只有一个正确答案）1．（3分）若m＜n，则下列不等式中一定成立的是（）A．m+1＞n+1B．﹣m＜﹣n C．D．ma＜na 2．（3分）下列图形中，是中心对称图形，但不是轴对称图形的是（）A．B．C．D．3．（3分）下列由左到右的变形，属于因式分解的是（）A．（x+3y）（x﹣3y）＝x2﹣9y B．x2﹣3x+2＝（x﹣1）（x﹣2）C．3x2+6x﹣1＝3x（x+2）﹣1D．（x﹣2y）2＝x2﹣4xy+4y24．（3分）不等式组的解集在数轴上表示为（）A．B．C．D．5．（3分）下列语句中不正确的是（）A．斜边和一锐角对应相等的两个直角三角形全等B．有两边对应相等的两个直角三角形全等C．有两个锐角相等的两个直角三角形全等D．有一直角边和一锐角对应相等的两个直角三角形全等6．（3分）如图，△ABC中，AB＝AC，D是BC中点，下列结论中不正确的是（）A．∠B＝∠C B．AD⊥BC C．AD平分∠BAC D．AB＝2BD 7．（3分）如图，O是∠BAC内一点，且点O到AB，AC的距离OE＝OF，则△AEO≌△AFO的依据是（）A．HL B．AAS C．SSS D．ASA8．（3分）如图，△ABC中，DE是AC的垂直平分线，AE＝5cm，△ABD的周长为18cm，则△ABC的周长为（）A．23cm B．28cm C．13cm D．18cm9．（3分）如图，∠MON＝60°，OP平分∠MON，P A⊥ON于点A，点Q是射线OM的一个动点，若OP＝4，则PQ的最小值为（）A．B．4C．2D．10．（3分）已知点P（a﹣1，a+2）在平面直角坐标系的第二象限内，则a的取值范围为（）A．a＜1B．﹣2＜a＜1C．a＜﹣2D．﹣2≤a≤1 11．（3分）若不等式ax﹣2＞0的解集为x＜﹣2，则关于y的方程ay+2＝0的解为（）A．y＝﹣1B．y＝1C．y＝﹣2D．y＝212．（3分）如图，在第1个△A1BC中，∠B＝30°，A1B＝CB；在边A1B上任取一点D，延长CA1到A2，使A1A2＝A1D，得到第2个△A1A2D；在边A2D上任取一点E，延长A1A2到A3，使A2A3＝A2E，得到第3个△A2A3E，…按此做法继续下去，则第n个三角形中以A n为顶点的底角度数是（）A．（）n•75°B．（）n﹣1•65°C．（）n﹣1•75°D．（）n•85°二、填空题（本题共4小题，每小题3分，共12分）13．（3分）多项式3a2b2﹣6a3b3﹣12a2b2c的公因式是．14．（3分）若m﹣n＝3，mn＝﹣2，则2m2n﹣2mn2+1的值为．15．（3分）已知函数y1＝k1x+b1与函数y2＝k2x+b2的图象如图所示，则不等式y1＜y2的解集是．16．（3分）如图，△AOB中，∠AOB＝90°，AO＝3，BO＝6，△AOB绕顶点O 逆时针旋转到△A′OB′处，此时线段A′B′与BO的交点E为BO的中点，则线段B′E的长度为．三、解答题（共52分）17．（8分）分解因式（1）a3﹣2a2b+ab2（2）x2（m﹣n）﹣y2（m﹣n）18．（5分）在平面直角坐标系中，直线y＝kx﹣4经过点P（2，﹣8），求关于x 的不等式kx+4≥0的解集，并求出它的非负整数解．19．（6分）解不等式组：，并把它的解集表示在数轴上．20．（7分）如图，方格纸中每个小正方形的边长都是1个单位长度，Rt△ABC 的三个顶点A（﹣2，2），B（0，5），C（0，2）．（1）将△ABC以点C为旋转中心旋转180°，得到△A1B1C，请画出△A1B1C的图形．（2）平移△ABC，使点A的对应点A2坐标为（﹣2，﹣6），请画出平移后对应的△A2B2C2的图形．（3）若将△A1B1C绕某一点旋转可得到△A2B2C2，请直接写出旋转中心的坐标．21．（8分）如图，△ABC和△ECD都是等腰直角三角形，∠ACB＝∠DCE＝∠90°，D为AB边上一点．（1）求证：△ACE≌△BCD；（2）若AD＝6，BD＝8，求ED的长．22．（8分）为庆祝商都正式营业，商都推出了两种购物方案．方案一：非会员购物所有商品价格可获九五折优惠；方案二：如交纳300元会费成为该商都会员，则所有商品价格可获九折优惠．（1）以x（元）表示商品价格，y（元）表示支出金额，分别写出两种购物方案中y关于x的函数解析式；（2）若某人计划在商都购买电视机一台，价格不低于5500元且不高于6500元，请你分析他应该选择哪种方案才更省钱？23．（10分）已知在△ABC中，满足∠ACB＝2∠B，（1）如图1，当∠C＝90°，AD为∠BAC的角平分线时，在AB上取一点E使得AE＝AC，连接DE，求证：AB＝AC+CD．（2）如图2，当∠C≠90°，AD为∠BAC的角平分线时，（1）中的结论还成立吗？若成立，请你证明；若不成立，请说明理由．（3）如图3，当AD为△ABC的外角平分线时，线段AB、AC、CD又有怎样的数量关系？请写出你的猜想，并对你的猜想给予证明．2014-2015学年广东省深圳市北环中学八年级（下）期中数学试卷参考答案与试题解析一、选择题（本题共有12小题，每小题3分，共36分，每小题有四个选项，只有一个正确答案）1．（3分）若m＜n，则下列不等式中一定成立的是（）A．m+1＞n+1B．﹣m＜﹣n C．D．ma＜na【解答】解：A、∵m＜n，∴m+1＜n+1，故本选项错误；B、∵m＜n，∴﹣m＞﹣n，故本选项错误；C、∵m＜n，∴，故本选项正确；D、当a＝0时，ma＝na，故本选项错误．故选：C．2．（3分）下列图形中，是中心对称图形，但不是轴对称图形的是（）A．B．C．D．【解答】解：A、不是轴对称图形，是中心对称图形．故此选项正确；B、是轴对称图形，也是中心对称图形．故此选项错误；C、是轴对称图形，不是中心对称图形．故此选项错误；D、是轴对称图形，不是中心对称图形．故此选项错误．故选：A．3．（3分）下列由左到右的变形，属于因式分解的是（）A．（x+3y）（x﹣3y）＝x2﹣9y B．x2﹣3x+2＝（x﹣1）（x﹣2）C．3x2+6x﹣1＝3x（x+2）﹣1D．（x﹣2y）2＝x2﹣4xy+4y2【解答】解：A、（x+3y）（x﹣3y）＝x2﹣9y是整式的乘法，不是因式分解，故本选项错误；B、x2﹣3x+2＝（x﹣1）（x﹣2）是因式分解，故本选项正确；C、3x2+6x﹣1＝3x（x+2）﹣1结果不是整式的积的形式，因而不是因式分解，故本选项错误；D、（x﹣2y）2＝x2﹣4xy+4y2是整式的乘法，不是因式分解，故本选项错误．故选：B．4．（3分）不等式组的解集在数轴上表示为（）A．B．C．D．【解答】解：由得：x≤2．由2﹣x＜3得：x＞﹣1．所以不等式组的解集为﹣1＜x≤2．故选C．5．（3分）下列语句中不正确的是（）A．斜边和一锐角对应相等的两个直角三角形全等B．有两边对应相等的两个直角三角形全等C．有两个锐角相等的两个直角三角形全等D．有一直角边和一锐角对应相等的两个直角三角形全等【解答】解：A、∵直角三角形的斜边和一锐角对应相等，所以另一锐角必然相等，∴符合ASA定理，故本选项正确；B、两边对应相等的两个直角三角形全等，若是两条直角边，可以根据SAS判定全等，若是直角边与斜边，可根据HL判定全等．故本选项正确；C、有两个锐角相等的两个直角三角形相似，故本选项错误；D、有一直角边和一锐角对应相等的两个直角三角形符合ASA定理，可判定相等，故本选项正确．故选：C．6．（3分）如图，△ABC中，AB＝AC，D是BC中点，下列结论中不正确的是（）A．∠B＝∠C B．AD⊥BC C．AD平分∠BAC D．AB＝2BD【解答】解：∵△ABC中，AB＝AC，D是BC中点∴∠B＝∠C，（故A正确）AD⊥BC，（故B正确）∠BAD＝∠CAD（故C正确）无法得到AB＝2BD，（故D不正确）．故选：D．7．（3分）如图，O是∠BAC内一点，且点O到AB，AC的距离OE＝OF，则△AEO≌△AFO的依据是（）A．HL B．AAS C．SSS D．ASA【解答】解：∵OE⊥AB，OF⊥AC，∴∠AEO＝∠AFO＝90°，又∵OE＝OF，AO为公共边，∴△AEO≌△AFO．故选：A．8．（3分）如图，△ABC中，DE是AC的垂直平分线，AE＝5cm，△ABD的周长为18cm，则△ABC的周长为（）A．23cm B．28cm C．13cm D．18cm【解答】解：∵DE是AC的中垂线，∴AD＝CD，∴△ABD的周长＝AB+BD+AD＝AB+BD+CD＝AB+BC，又∵AE＝5cm，∴AC＝2AE＝2×5＝10cm，∴△ABC的周长＝18+10＝28cm，故选：B．9．（3分）如图，∠MON＝60°，OP平分∠MON，P A⊥ON于点A，点Q是射线OM的一个动点，若OP＝4，则PQ的最小值为（）A．B．4C．2D．【解答】解：过点P作PQ⊥OM，垂足为Q，则PQ为最短距离，∵OP平分∠MON，P A⊥ON，PQ⊥OM，∴P A＝PQ，∵∠AOP＝∠MON＝30°，∴OP＝2，∴PQ＝2，故选：C．10．（3分）已知点P（a﹣1，a+2）在平面直角坐标系的第二象限内，则a的取值范围为（）A．a＜1B．﹣2＜a＜1C．a＜﹣2D．﹣2≤a≤1【解答】解：由题意得，①得：a＜1，由②得：a＞﹣2，不等式组的解集为：﹣2＜a＜1．故选：B．11．（3分）若不等式ax﹣2＞0的解集为x＜﹣2，则关于y的方程ay+2＝0的解为（）A．y＝﹣1B．y＝1C．y＝﹣2D．y＝2【解答】解：ax﹣2＞0，移项，得：ax＞2，∵解集为x＜﹣2，则a＝﹣1，则ay+2＝0即﹣y+2＝0，解得：y＝2．故选：D．12．（3分）如图，在第1个△A1BC中，∠B＝30°，A1B＝CB；在边A1B上任取一点D，延长CA1到A2，使A1A2＝A1D，得到第2个△A1A2D；在边A2D上任取一点E，延长A1A2到A3，使A2A3＝A2E，得到第3个△A2A3E，…按此做法继续下去，则第n个三角形中以A n为顶点的底角度数是（）A．（）n•75°B．（）n﹣1•65°C．（）n﹣1•75°D．（）n•85°【解答】解：∵在△CBA1中，∠B＝30°，A1B＝CB，∴∠BA1C＝＝75°，∵A1A2＝A1D，∠BA1C是△A1A2D的外角，∴∠DA2A1＝∠BA1C＝×75°；同理可得，∠EA3A2＝（）2×75°，∠F A4A3＝（）3×75°，∴第n个三角形中以A n为顶点的底角度数是（）n﹣1×75°．故选：C．二、填空题（本题共4小题，每小题3分，共12分）13．（3分）多项式3a2b2﹣6a3b3﹣12a2b2c的公因式是3a2b2．【解答】解：∵3a2b2﹣6a3b3﹣12a2b2c＝3a2b2（1﹣2ab﹣4c），∴多项式3a2b2﹣6a3b3﹣12a2b2c的公因式是3a2b2．故答案为：3a2b2．14．（3分）若m﹣n＝3，mn＝﹣2，则2m2n﹣2mn2+1的值为﹣11．【解答】解：∵2m2n﹣2mn2+1＝2mn（m﹣n）+1将m﹣n＝3，mn＝﹣2代入得：原式＝2mn（m﹣n）+1＝2×（﹣2）×3+1＝﹣11．故答案为：﹣11．15．（3分）已知函数y1＝k1x+b1与函数y2＝k2x+b2的图象如图所示，则不等式y1＜y2的解集是x＜1．【解答】解：不等式y1＜y2的解集即为函数y1＝k1x+b1的值小于y2＝k2x+b2的值时x的取值范围，由图可知x＜1时，不等式y1＜y2成立，故答案为x＜1．16．（3分）如图，△AOB中，∠AOB＝90°，AO＝3，BO＝6，△AOB绕顶点O 逆时针旋转到△A′OB′处，此时线段A′B′与BO的交点E为BO的中点，则线段B′E的长度为．【解答】解：∵∠AOB＝90°，AO＝3，BO＝6，∴AB＝＝＝3，∵△AOB绕顶点O逆时针旋转到△A′OB′处，∴AO＝A′O＝3，A′B′＝AB＝3，∵点E为BO的中点，∴OE＝BO＝×6＝3，∴OE＝A′O，过点O作OF⊥A′B′于F，S△A′OB′＝×3•OF＝×3×6，解得OF＝，在Rt△EOF中，EF＝＝＝，∵OE＝A′O，OF⊥A′B′，∴A′E＝2EF＝2×＝（等腰三角形三线合一），∴B′E＝A′B′﹣A′E＝3﹣＝．故答案为：．三、解答题（共52分）17．（8分）分解因式（1）a3﹣2a2b+ab2（2）x2（m﹣n）﹣y2（m﹣n）【解答】解：（1）原式＝a（a2﹣2ab+b2）＝a（a﹣b）2；（2）原式＝（x2﹣y2）（m﹣n）＝（x+y）（x﹣y）（m﹣n）．18．（5分）在平面直角坐标系中，直线y＝kx﹣4经过点P（2，﹣8），求关于x 的不等式kx+4≥0的解集，并求出它的非负整数解．【解答】解：∵直线y＝kx﹣4经过点P（2，﹣8），∴2k﹣4＝﹣8，解得k＝﹣2，∴不等式kx+4≥0为﹣2x+4≥0，解得x≤2，∴不等式的解集为x≤2，∴非负整数解为x＝0，1，2．19．（6分）解不等式组：，并把它的解集表示在数轴上．【解答】解：，解不等式①得，x≤﹣1，解不等式②，4x＜3x+3，x＜3，在数轴上表示如下：所以，不等式组的解集是x≤﹣1．20．（7分）如图，方格纸中每个小正方形的边长都是1个单位长度，Rt△ABC 的三个顶点A（﹣2，2），B（0，5），C（0，2）．（1）将△ABC以点C为旋转中心旋转180°，得到△A1B1C，请画出△A1B1C的图形．（2）平移△ABC，使点A的对应点A2坐标为（﹣2，﹣6），请画出平移后对应的△A2B2C2的图形．（3）若将△A1B1C绕某一点旋转可得到△A2B2C2，请直接写出旋转中心的坐标．【解答】解：（1）如图所示：△A1B1C即为所求；（2）如图所示：△A2B2C2即为所求；（3）旋转中心坐标（0，﹣2）．21．（8分）如图，△ABC和△ECD都是等腰直角三角形，∠ACB＝∠DCE＝∠90°，D为AB边上一点．（1）求证：△ACE≌△BCD；（2）若AD＝6，BD＝8，求ED的长．【解答】（1）证明：∵△ABC和△ECD都是等腰直角三角形，∠ACB＝∠DCE ＝∠90°，∴AC＝BC，EC＝DC，∠B＝∠CAB＝45°，∠ACE＝∠BCD＝90°﹣∠ACD，在△ACE和△BCD中∴△ACE≌△BCD（SAS）；（2）解：∵△ACE≌△BCD，∴∠CAE＝∠B，AE＝BD＝8，∵∠CAB＝∠B＝45°，∴∠EAD＝45°+45°＝90°，在Rt△EAD中，由勾股定理得：ED＝＝＝10．22．（8分）为庆祝商都正式营业，商都推出了两种购物方案．方案一：非会员购物所有商品价格可获九五折优惠；方案二：如交纳300元会费成为该商都会员，则所有商品价格可获九折优惠．（1）以x（元）表示商品价格，y（元）表示支出金额，分别写出两种购物方案中y关于x的函数解析式；（2）若某人计划在商都购买电视机一台，价格不低于5500元且不高于6500元，请你分析他应该选择哪种方案才更省钱？【解答】解：（1）方案一：y＝0.95x；方案二：y＝0.9x+300；（2）由0.95x＝0.9x+300，解得x＝6000；由0.95x＞0.9x+300，x＞6000；由0.95x＜0.9x+300，x＜6000；又∵电视机的价格不低于5500元且不高于6500元，∴当5500≤x＜6000时，应选择方案一较省钱；当x＝6000时，方案一方案二费用相同；当6000＜x≤6500时，应选择方案二更省钱．23．（10分）已知在△ABC中，满足∠ACB＝2∠B，（1）如图1，当∠C＝90°，AD为∠BAC的角平分线时，在AB上取一点E使得AE＝AC，连接DE，求证：AB＝AC+CD．（2）如图2，当∠C≠90°，AD为∠BAC的角平分线时，（1）中的结论还成立吗？若成立，请你证明；若不成立，请说明理由．（3）如图3，当AD为△ABC的外角平分线时，线段AB、AC、CD又有怎样的数量关系？请写出你的猜想，并对你的猜想给予证明．【解答】证明：（1）∵AD为∠BAC的角平分线∴∠EAD＝∠CAD，在△AED与△ACD中，，∴△AED≌△ACD（SAS），∴ED＝CD，∠AED＝∠ACD＝90°，又∵∠ACB＝90°，∠ACB＝2∠B，∴∠B＝45°，∴∠BDE＝45°，∴∠B＝∠BDE，∴EB＝ED，∴EB＝CD，∴AB＝AE+EB＝AC+CD；（2）结论：还成立．理由：如图2，在AB上截取AE＝AC，连接ED，∵AD为∠BAC的角平分线时，∴∠BAD＝∠CAD，在△AED与△ACD中，，∴△AED≌△ACD（SAS），∴∠AED＝∠C，ED＝CD，∵∠ACB＝2∠B，∴∠AED＝2∠B，∵∠AED＝∠B+∠EDB，∴∠B＝∠EDB，∴EB＝ED，∴EB＝CD，∴AB＝AE+EB＝AC+CD；（3）猜想：AB+AC＝CD．证明：如图，在BA的延长线上截取AE＝AC，连接ED．∵AD平分∠F AC，∴∠EAD＝∠CAD，在△AED与△ACD中，，∴△AED≌△ACD（SAS），∴ED＝CD，∠AED＝∠ACD，∴∠FED＝∠ACB，又∵∠ACB＝2∠B，∴∠FED＝2∠B，又∵∠FED＝∠B+∠EDB，∴∠EDB＝∠B，∴EB＝ED，∴EA+AB＝EB＝ED＝CD，∴AC+AB＝CD．。
广东省深圳市2014-2015学年第二学期福田外国语学样八年级期中考试
2014-2015学年第二学期福田外国语学样八年级期中考试英语试题II. 选择填空（20 分）i）根据句意，选择与划线部分意思最接近的选项，并在答题卡选择题答题区将相应的字母编号涂黑。
（共5 小题，每小题1 分）( ) 21.Tom fell off his bike and hurt his leg.A. sickB. injuredC. hi tD. broke( ) 22.To make the characters and things appear to move, each picture should be made a little different from the one before it.A. likeB. interestingC. seemD. seem( ) 23.He with his classmates reaches school at 7:40 on weekdays.A. arrives inB. arrive atC. gets toD. goes to( ) 24.After trying hard for so many times, Edison finally made it.A. became succeededB. became famousC. enjoyed himselfD. became successful( ) 25.Why not go hiking on Sunday together?A. Let usB. How aboutC. What aboutD. Why don’t youii）从下面每小题的A、B、C、D 四个选项中选出最佳答案，并在答题卡选择题答题区将相应的字母编号涂黑。
（共15小题，每小题1 分）( ) 21.To__________ yourself in English fluently, you have to work harder.A. speakB. sayC. expressD. communicate ( ) 22. People who are__________ means it is not easy for them to move around freely or to see something clearly.A. worriedB. disabledC. movedD. fit( ) 23. A(n) __________ is a person or animal in a book, play or movie.A. actorB. cartoonC. writerD. character( ) 24. A__________ is a movement that you make with your hands to express feelings or information.A. hand-shakingB. sighC. expressionD. gesture( ) 25.If you__________ something, it means you say what something is like in detail.A. acceptB. createC. describeD. attract( ) 26. ---Would you please remind her__________ the meeting?---Ok. She didn’t go to work today because an accident__________ suddenly.A. on; took placeB. about; was taken placeC. on; was taken placeD. about; took place( ) 27. --- Did you spend a lot of time__________ English last weekend?--- No, it only took me two days__________ it.A. practising speaking; to finishB. practicing to speak; finishingC. to practise to speak; to finishD. to practise speaking; finishing( ) 28.As my father is looking forward to__________ from me, please remember__________ this letter on your way to school.A. hearing; postingB. hearing; to postC. hear; to postD. hear; posting( ) 29.--- The children in that hospital have got__________ illness.--- Let’s do something to__________.A. seriously; raise their spiritsB. serious; rise their spiritsC. serious; raise their spiritsD. seriously; rise their spirits( ) 30.--- The teacher asked us__________ so much noise in the classroom.--- Yes, it is no good__________ aloud all the time.A. don’t make; talkingB. not to make; to talkC. not to make; talkingD. don’t make; to talk( ) 31. --- She__________ a good impression on her relatives at the party.--- Yes. She__________ to behave herself since she was young.A. gave; has been toldB. made; has been toldC. gave; was toldD. made; was told( ) 32. This piece of music__________ everywhere for it__________ beautiful.A. can hear; is soundedB. hears; soundsC. can be heard; soundsD. can be heard; is sounded( ) 33. --- It must be difficult__________ English well.--- Yes. I’m having difficulty __________ English myself, but I will try my best.A. speaking; to learnB. to speak; to learnC. to speak; learningD. speaking; learning( ) 34. There__________ a tall tree in front of the house, and people got used__________ a rest after supper under it.A. used to have; to takingB. used to be; to takeC. used to have; to takeD. used to be; to taking( ) 35. Which of the following sentences is RIGHT?A. There are many students read in the library.B. Keep pet is good for children.C. People like paper cutting. Because it can bring them good lucky.D. Fast & Furiou s 7 was on in April, 2015.III. 选择填空（15 分）阅读下面短文，然后从A、B、C、D 四个选项中选出最佳答案，并在大题卡选择题答题区将相应的字母编号涂黑。
广东省深圳市2014-2015学年第二学期(北环翠园东晓宝中)八年级期中考试
2014-2015 学年第二学期北环/翠园/东晓/宝中八年级期中考试英语试题笔试部分（85分）I. 词语释义。
（共 5 小题，每题 1 分）从下面每小题的 A、B、C 三个选项中选出可以替代划线部分的最佳选项，并在答题卡上将相应的字母编号涂黑。
（共 5 小题，每小题 1 分）( ) 26. The singers will have a concert to raise money for the poor children in the mountain village.A. checkB. showC. collect( ) 27. At first, Frank had some difficulty learning Chinese.A. rulesB. problemC. opinions( ) 28. We arrived in Beijing on a cold snowy morning.A. reachedB. returnedC. got( ) 29. This place is seriously polluted, so people will no more live here.A. not at allB. not …. any moreC. not… until( ) 30. Angela baby is so lovely that she has lots of fans.A. attractiveB. uglyC. friendly.II.单项选择（10 分）从下面A、B、C 三个选项中选出可以填入空白处的最佳选项，并在答题卡上相应的字母编号涂黑（共10 小题，每小题1 分）( ) 31. Sally _________an invitation from Tom, but she didn’t _________it.A. accepted; receivedB. accept; receiveC. received; accept( ) 32. —Although my grandma lives _________, she never feels _________.— Maybe she has been used to the lifestyle.A. lonely; lonelyB. lonely; aloneC. alone; lonely( ) 33. —To keep fit, you’d better _________sports.— Yes, from now on, I plan to spend one hour _________exercise every day.A. doing; takeB. do; takingC. to do; takes( ) 34. — Are you good at _________?— No, I am not. Could you please _________the accident to him?A. description; descriptionB. describe; descriptionC. description; describe( ) 35. — Would you like _________the Lianhua Mountain tomorrow?—I’d like to, _________I have to do my homework.A. climbing; howeverB. climbing; soC. to climb; but( ) 36. — The 30th Olympic Games_________in London in 2012.— Yes, _________people around the world watched it on TV.A. is held; million ofB. was held; millions ofC. was held; million( ) 37. — How does the old man_________?— By using cormorants. He is a_________and he works with cormorants every day.A. catch fish; policemanB. catch fish; fishermanC. make a face; fisherman( ) 38. Alice couldn’t sleep last night, because she_________toothaches.A. suffered fromB. heard aboutC. kept off( ) 39. — Do you think the yellow skirt_________ my shoes.— Yes, but I think the pink one_________to be more perfect.A. matches; appearsB. accepts; looksC. expresses; tastes( ) 40. —Mark, please don’t play basketball on the road. It’s dangerous.—_________.A. Have a great timeB. Never mindC. Sorry, I won’t do that again.III．完型填空（15分）阅读下面的短文，掌握其大意，然后从短文后各题所给的A、B、C、D四个选项中，选择最佳选项，并在答题卡上将相应的字母编号涂黑。
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2014-2015学年第二学期深圳市高级中学校期中考试八年级英语试卷I.听力测试（10分）II.单项选择（20分，每小题1分）从下面每小题的A,B,C选项中选出可以替换划线部分的最佳选项。
（共5小题，每小题1分）( ) 21.Themistakeyou’vemadeisserious,sowemustsolveitquickly.A. good and usefulB. bad and dangerousC. bad but helpful( ) 22. We should do something to raise some money for the poor families.A. makeB. chooseC. collect( ) 23. I saw a blue car run towards the old building.A. inB. toC. up( ) 24. Jay isn’t here now. We’d better have a message on his desk.A. a piece of informationB. a notebookC. a passage( ) 25. Although my grandpa is 60 years old, he is very fit and enjoys exercising.A. wiseB. busyC. healthy从下面每小题的A,B,C选项中选出可以填入空白处的最佳选项。
（共15小题，每小题1分）( ) 26. if you have a good feeling, you are in high__________.A. abilityB. spiritC. spirits( ) 27. A person is usually not afraid of dangerous or difficult things, so he or she has lots of __________.A. courageB. encouragementC. gesture( ) 28. If you__________with someone, you share or exchange information with them.A. touchB. communicateC. remind( ) 29. We can overcome any__________no matter how hard it is.A. expressionB. differenceC. difficulty( ) 30.If you do not want to do that__________it completely.A. rejectB. refreshC. react( ) 31. The singer need some people to help him__________his new song.A. recordB. refuseC. reel( ) 32. How would you like to pay the deposit(押金), together or__________?A. mysteriouslyB. separatelyC. suddenly( ) 33. Mr. Li is very busy, so we often asks his assistant to remind him__________the meeting time.A. forB. aboutC. on( ) 34. Lucy__________her books, so she had to share with her classmate.A. forgot to bringB. forgot bringingC. forgot bring( ) 35. __________is a good way to help you shape your body.A. DanceB. DancingC. dances( ) 36. The fish are__________into a big basket by the fisherman.A. throwB. threwC. thrown( ) 37.The cartoon characters__________carefully by the artists.A. are drawingB. are drewC. have been drawn( ) 38. Keep silent! The Rockets is playing__________the Bulls now.A. againstB. withC. about( ) 39. As a result of the greenhouse effect, the Earth’s temperature is__________. This causes sea level to rise.A. reducingB. increasingC. dropping( ) 40. __________a book in the library, enter a key word into the computer.A.To findB. FindC. FindingIII.完型填空（15分）阅读下面短文，从短文后没小题的三个选项中选出能填入空白处的最佳选项。
（共10小题，每小题1.5分）In the cartoon, a well-dressed young girl threw a banana peel(皮) onto the ground. Later, a disabled old man 41 up the peel and put it into thedustbin.Being well dressed is 42 great importance in keeping a good appearance. The way we are dressed helpsusto have a good 43 and shows our confidence and attitudes towards life. However, we should alwaysremember that we shouldn’t judge a person by his appearance. Our good 44 on others does not usually develop fromthe way we dresses, but the inner 45 we have. Because of this, the old man is showing a more beautifulvirtue even though he’s 46 .No doubt 47 usuallyreferstowhatcatchesothers’eyes.Aprettygirlisregardedas 48 . Asplendid waterfall coming down from a mountain is beautiful too. However, beauty also refers to 49 catchesothers’mind.In a word, we should not only 50 ourphysicalappearance,butalsoimproveourheartandsoul.Thenwe can make our societybeautiful.( ) 41. A. made B. picked C. gave( ) 42. A. for B. of C. in( ) 43.A. communication B. appearance C. description( ) 44. A. impression B. difference C. importance( ) 45. A. qualities B. quantity C. disabled( ) 46. A. lazy B. helpful C. poor( ) 47.A. character B. health C. beauty( ) 48.A. lively B. patient C. lovely( ) 49.A. what B. why C. when( ) 50. A. look forwardto B. pay attentionto C. dealwithIV.阅读理解（20分）阅读下列短文，从每小题的选项中选出最佳选项（共20小题，每小题1 分）AAmerican boy Ethan King is 16 now. he set up Charity Ball. Anyone can pay $25 on Charity Ball’s website forone soccer ball for Africanchildren.Ethan’s father’s job is to repair water wells in poor villages. When Ethan was 10, he went there with his father.He tookhissoccerballtherewithhim.Tohissurprise,everytimehearrivedatavillageandtookouttheball,50-100 kids would come to play with is soccer ball. They had so muchfun.After Ethan come back home, he set up Charity Ball to help those children in Africa. Ethan’s father travelsto Africa at least two or three times a year. After people give money to Charity Ball, Ethan asks his father to thesoccerballstothechildreninAfrica.Andhisfathertakesphotosofthechildren.ThenhegivesthephotosbacktoEthan. Ethan said he wanted people to know where their money wasgoing.( ) 51.When people give $25 to Charity Ball, they payfor_________.A. a pair of soccer shoesB. a soccer ballC. AN AIR TICKETD. a water well ( ) 52. The idea of Charity Ball came from a_________.A. tripB. gameC. PHOTOD. letter( ) 53. Charity Ball has a history of about_________years.A. 2B. 3C. 6D. 10( ) 54.How did the African children feel when they played soccer?A. SurprisedB. WorriedC. ExcitedD. Afraid( ) 55. Which of the following is TRUE according to the passage?A. Ethan set up Charity Ball at the age of 16.B. Ethan’s father’s job is to repair bikes.C. Ethan’s father goes to Africa once every year.D. Ethan King comes from the USA.( ) 56. What does City Year London need?Teachers B. Cleaners C. Students D. Tour guides.( ) 57. What service does City Year London have?A. Activities on weekdaysB. Easy school rulesC. After-school clubsD. One to five tutoring( ) 58.How much can one get from Good Citizen Award?A.$100B. $400C.$1,000D. $1,200( ) 59. If Linda wants to go to City Year London, she should_______.①be between the ages of 18-25 ②write English very well③spend one month practicing ④have the passion to set a good exampleA. ①②③④B. ①②④C. ①③④D. ①④( ) 60. How long should you live in London at least if you work for City Year London?A. One yearB. 11 monthsC. 6 monthsD. 5 monthsCWhatisthecauseofearthquake？Theearthismadeupofseverallayers.Thetoplayeroftheearthiscalled the crust(地壳). The crust is divided into sections which are calledplates.When two plates push against each other, or when two plates rub against each other, an earthquake happens.An earthquake causes the ground above the plate shake. The shaking is caused by the movement of theplates.Earthquakearelikelytohappenattheboundariesoftheearth’s plates.Eachoftheseplatesisabove70 kilometersthick.Wouldyouknowwhattododuringabigearthquake?Scientistshavesomeadviceforus.Ifthegroundbegins shaking while you are driving, stop your car on the roadside and stay in it. If you are in a tall building, don’t usethe liftandneverjumpoutofthewindows.Whenyouareinalivingroom,findastrongtableorrushintoasmallroom likewashroom.Thenliedownyourbody.Takecareofyourhead.Whenyouareinapublicplace,likesupermarket orcinema,don’tcrowdinjam,oryoumayfalloverandgethurt.Crossyourarmstoprotectyourself.Youcanalso find a place tohide.Afterthemainshake,quicklyrunoutofthedangerousbuildingfortherewillbesmallearthquakes.Ifyouaresafe,remembernottoengagethephoneline,keepitfreeforrescueusing.Don’tgotothehospitalifyouarenot badly hurt, others will really need help. Take part in the rescue action if youcan.( ) 61. What are plates?A. The top layer of the crustB. Places that cause the ground to shakeC. The sections of the crustD. Places where earthquakes happen( ) 62. The shaking is caused by_________.A. the movement of the crustB. the movement of platesC. the thunderstormD. the gravity( ) 63. Why does the writer say “don’t crowd in jam in public places”?A. Because people can lie down easilyB. Because people may get help quicklyC. Because it can help avoid falling over.D. Because it can help find a place to hide.( ) 64.What does the underlined word “engage” in the last paragraph mean in Chinese?A. to useB. to touchC. to graspD. to repair( ) 65. You can find this passage from_________.A. a magazineB. an encyclopediaC. a book reviewD. an instructionDI never saw my father home from work late or ill, nor did I ever see my father take a “night out with the boys”.He had no hobbies but just took care of his family.For 22 years, since I left home for college, my father called me every Sunday at 9: 00am. He was alwaysinterested inmylife-howmyfamilywasdoing.ThecallsevencamewhenheandmymotherwereinAustralia,Englandor Florida.NineyearsagowhenIboughtmefirsthouse,myfather,67yearsold,spenteighthoursadayforthreedays, painting my house. He would not allow me to pay someone to have it done. All he asked, was a glass of iced tea, and thatIholdapaintbrushforhimandtalktohim.ButIwastoobusy,forIhadalawpracticetorun,andIcouldnot take the time to hold the paintbrush, or talk to myfather.Fiveyears ago, my71-year-old fatherspent five hours putting togethera swing set (秋千) formydaughter.Again,allheaskedwasthatIgethimaglassoficedtea,andtalktohim,Butagain,Ihadlaundrytodo,andthehous eto clean.ThemorningonSunday,January16,1995,myfathertelephonedmeasusual,thistimehehadseemedtohave forgotten some things we had discussed the week before. I had to get to church, and I cut the conversationshort.Thecallcameat4:40am.ThatdaymyfatherwassenttohospitalinFlorida.Igotonaplaneimmediately,andI vowed ()thatwhen I arrived, I wouldmake up forthelosttime, and have a nicelongtalkwithhim and reallygetto knowhim.IarrivedinFloridaat1:00am,butmyfatherhadpassedawayat9:12pm.Thistimeitwashewhodidnothave time to talk, or time to wait forme.In the years since his death I have learnt much about my father, and even more about every singleday.( ) 66. We know from the reading that the father_________.A. liked to paint housesB. had no friends around himC. was not healthy in his youthD. thought of his family as his all( ) 67.When her father painted her first house, the daughter_________.A. could only afford a glass of iced teaB. was too busy to talk to her fatherC. could do nothing but hold a paintbrushD. spent eight hours a day working with her father ( ) 68. On January 16, 1995, the daughter felt that her father_________.A. seemed to be a little differentB. had no time to phone her as usualC. became interested in churchD. had forgotten to discuss some things with her( ) 69. In the reading the underlined phrase, get to know him’ most probably means_________.A. get him to know herB. know more about himC. get him to know himselfD. make him well-known( ) 70. Which is the best title of the reading?A. Painting HousesB. Daughter’s FamilyC. Father and ID. Father’s phone callsV.句子填空（10分）用手字母或者所给单词的适当形式填空。