宁夏银川一中2017届高三理综第六次考试试题
2017届银川一中高三上学期第六次月考英语试题及答案
银川一中2017届高三年级第六次月考英语试卷第Ⅰ卷 (共115分)第一部分：听力理解(共两节。
满分30分)第一节(共5小题：每小题1.5分，满分7.5分)听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1.When can the man buy his tickets?A.At 7 o’clock.B. At 8 o’clock.C. At 10 o’clock.2.Who is the woman?A. A teacher.B. A librarian.C. A student.3.What is true about the man?A.He saw an English-speaking doctor.B.His first language is not Chinese.C.He thinks the woman should see a doctor.4.What does the man mean?A.The question is not very clear.B.B. The woman is late for class again.C.The paper must be handed in on time.5.What are the speakers mainly talking about?A.Cell phone bills.B.Online shopping.C.Apartment rents.第二节(共15小题，每小题1.5分，满分22.5分)听下面5段对话或独白，每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项并标在试卷的相应位置。
听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。
宁夏银川一中2017届高三下学期第六次考试数学试卷理科
2016-2017学年宁夏银川一中高三（下）第六次考试数学试卷（理科）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．已知集合A={x|x2≥16}，B={m}，若A∪B=A，则实数m的取值范围是（）A．（﹣∞，﹣4）B．[4，+∞）C．[﹣4，4]D．（﹣∞，﹣4]∪[4，+∞）2．下列函数中，周期为π的奇函数是（）A．y=sin2x B．y=tan2xC．y=sin2x+cos2x D．y=sinxcosx3．“a=1“是“直线ax+y+1=0与直线（a+2）x﹣3y﹣2=0垂直”的（）A．充要条件B．充分不必要条件C．必要不充分条件 D．既不充分也不必要条件4．已知i是虚数单位，复数z=（a∈R），若|z|=（sinx﹣）dx，则a=（）A．±1 B．1 C．﹣1 D．±5．设m，n为两条不同的直线，α，β为两个不同的平面，给出下列命题：①若m⊥α，m⊥β，则α∥β②若m∥α，m∥β，则α∥β③若m∥α，n∥α，则m∥n④若m⊥α．n⊥α，则m∥n上述命题中，所有真命题的序号是（）A．①④B．②③C．①③D．②④6．已知2x=3y=5z，且x，y，z均为正数，则2x，3y，5z的大小关系为（）A．2x＜3y＜5z B．3y＜2x＜5z C．5z＜3y＜2x D．5z＜2x＜3y7．在△ABC中，内角A，B，C的对边分别为a，b，c，若cosA=，c﹣a=2，b=3，则a等于（）A．2 B．C．3 D．8．已知直线和椭圆交于不同的两点M，N，若M，N在x轴上的射影恰好为椭圆的两个焦点，则椭圆的离心率为（）A．B．C．D．9．函数y=asinx﹣bcosx的一条对称轴为x=，则直线l：ax﹣by+c=0的倾斜角为（）A．45°B．60°C．120° D．135°10．已知x，y为正实数，且x+y++=5，则x+y的最大值是（）A．3 B．C．4 D．11．过双曲线x2﹣=1的右支上一点P，分别向圆C1：（x+4）2+y2=4和圆C2：（x﹣4）2+y2=1作切线，切点分别为M，N，则|PM|2﹣|PN|2的最小值为（）A．10 B．13 C．16 D．1912．已知函数f（x）=aln（x+1）﹣x2，在区间（0，1）内任取两个不相等的实数p，q，若不等式＞1恒成立，则实数a的取值范围是（）A．[15，+∞）B．[6，+∞）C．（﹣∞，15]D．（﹣∞，6]二、填空题：本大题共4小题，每小题5分．13．抛物线y=﹣4x2的准线方程是．14．如图为某几何体的三视图，则该几何体的体积为．15．已知x，y满足，若目标函数z=3x+y的最大值为10，则m的值为．16．已知等腰△OAB中，|OA|=|OB|=2且，那么的取值范围是．三、解答题：本大题共5小题，共70分．解答应写出文字说明，证明过程或演算步骤．17．在△ABC中，a，b，c分别为内角A，B，C的对边，且asinB=﹣bsin（A+）．（1）求A；（2）若△ABC的面积S=c2，求sinC的值．18．已知等差数列{a n}的前n项的和为S n，非常数等比数列{b n}的公比是q，且满足：a1=2，b1=1，S2=3b2，a2=b3．（Ⅰ）求a n与b n；（Ⅱ）设c n=2b n﹣λ•，若数列{c n}是递减数列，求实数λ的取值范围．19．已知在边长为4的等边△ABC（如图1所示）中，MN∥BC，E为BC的中点，连接AE交MN于点F，现将△AMN沿MN折起，使得平面AMN⊥平面MNCB（如图2所示）．（1）求证：平面ABC⊥平面AEF；（2）若S BCNM=3S△AMN，求直线AB与平面ANC所成角的正弦值．20．在平面直角坐标系xOy中，已知椭圆C1： +=1（a＞b＞0）的离心率e=，且椭圆C1的短轴长为2．（1）求椭圆C1的方程；（2）设A（0，），N为抛物线C2：y=x2上一动点，过点N作抛物线C2的切线交椭圆C1于B，C两点，求△ABC面积的最大值．21．已知函数f（x）=（其中k∈R，e=2.71828…是自然数的底数），f′（x）为f（x）的导函数．（1）当k=2时，求曲线y=f（x）在点（1，f（1））处的切线方程；（2）若x∈（0，1]时，f′（x）=0都有解，求k的取值范围；（3）若f′（1）=0，试证明：对任意x＞0，f′（x）＜恒成立．请考生在第22、23两题中任选一题作答，如果多做．则按所做的第一题记分．[选修4-4：坐标系与参数方程]（共1小题，满分10分）22．在极坐标系中，已知圆C的圆心C（，），半径r=．（Ⅰ）求圆C的极坐标方程；（Ⅱ）若α∈[0，），直线l的参数方程为（t为参数），直线l 交圆C于A、B两点，求弦长|AB|的取值范围．[选修4-5：不等式选讲]（共1小题，满分0分）23．设函数f（x）=|2x﹣1|﹣|x+2|．（Ⅰ）解不等式f（x）＞0；（Ⅱ）若∃x0∈R，使得f（x0）+2m2＜4m，求实数m的取值范围．2016-2017学年宁夏银川一中高三（下）第六次考试数学试卷（理科）参考答案与试题解析一、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．已知集合A={x|x2≥16}，B={m}，若A∪B=A，则实数m的取值范围是（）A．（﹣∞，﹣4）B．[4，+∞）C．[﹣4，4]D．（﹣∞，﹣4]∪[4，+∞）【考点】并集及其运算．【分析】化简集合A、B，根据A∪B=A，得出B⊂A；从而求出实数m的取值范围．【解答】解：∵集合A={x|x2≥16}={x|x≤﹣4或x≥4}，B={m}，且A∪B=A，∴B⊂A；∴m≤﹣4，或m≥4，∴实数m的取值范围是（﹣∞，﹣4]∪[4，+∞）．故答案为：D．2．下列函数中，周期为π的奇函数是（）A．y=sin2x B．y=tan2xC．y=sin2x+cos2x D．y=sinxcosx【考点】三角函数的周期性及其求法；函数奇偶性的判断；函数的周期性．【分析】根据题意，依次分析选项，求出函数的周期与奇偶性，分析即可得答案．【解答】解：根据题意，依次分析选项：对于A、y=sin2x=，为偶函数，周期为=π，不符合题意；对于B、y=tan2x，为奇函数，其周期为，不符合题意；对于C、y=sin2x+cos2x=sin（2x+），为非奇非偶函数，不符合题意；对于D、y=sinxcosx=sin2x，为奇函数，且其周期为=π，符合题意；故选：D．3．“a=1“是“直线ax+y+1=0与直线（a+2）x﹣3y﹣2=0垂直”的（）A．充要条件B．充分不必要条件C．必要不充分条件 D．既不充分也不必要条件【考点】必要条件、充分条件与充要条件的判断．【分析】都存在斜率的两直线垂直的充要条件是斜率之积为﹣1，所以根据这个结论，便容易判断出a=1能得到“直线ax+y+1=0与直线（a+2）x﹣3y﹣2=0垂直”，而这两直线垂直得不到a=1，所以根据充分条件、必要条件的概念即可找出正确选项．【解答】解：（1）a=1时，直线x+y+1=0的斜率为﹣1，3x﹣3y﹣2=0的斜率为1；∴这两直线垂直；（2）若直线ax+y+1=0与（a+2）x﹣3y﹣2=0垂直，则：；∴解得a=1，或﹣3；∴“直线ax+y+1=0与直线（a+2）x﹣3y﹣2=0垂直“不一定得到“a=1“；∴综上得“a=1“是“直线ax+y+1=0与直线（a+2）x﹣3y﹣2=0垂直”的充分不必要条件．故选B．4．已知i是虚数单位，复数z=（a∈R），若|z|=（sinx﹣）dx，则a=（）A．±1 B．1 C．﹣1 D．±【考点】复数代数形式的乘除运算．【分析】求定积分得到|z|，然后利用复数代数形式的乘除运算化简z，代入复数模的公式求得m的值．【解答】解：|z|=（sinx﹣）dx=（﹣cosx﹣）|=（﹣cosπ﹣1）﹣（﹣cos0﹣0）=1，∵z===+i，∴（）2+（）2=1，解得a=±1，故选：A．5．设m，n为两条不同的直线，α，β为两个不同的平面，给出下列命题：①若m⊥α，m⊥β，则α∥β②若m∥α，m∥β，则α∥β③若m∥α，n∥α，则m∥n④若m⊥α．n⊥α，则m∥n上述命题中，所有真命题的序号是（）A．①④B．②③C．①③D．②④【考点】空间中直线与平面之间的位置关系．【分析】根据空间直线，平面间的位置关系的判定定理和性质定理，结合选项进行逐个判断即可．同时利用反例的应用．【解答】解：若m⊥α，m⊥β，则α∥β．这是直线和平面垂直的一个性质定理，故①成立；若m∥α，m∥β，则α∥β或α，β相交，故②不成立；若m∥α，n∥α，则m，n平行、相交或异面，则③错误；由垂直与同一平面的两直线平行可知：④为真命题，故选：A．6．已知2x=3y=5z，且x，y，z均为正数，则2x，3y，5z的大小关系为（）A．2x＜3y＜5z B．3y＜2x＜5z C．5z＜3y＜2x D．5z＜2x＜3y【考点】对数的运算性质．【分析】令2x=3y=5z=k，利用指对数互化求出x、y、z，得2x、3y、5z，由于3个数都是正数，利用对数、指数的运算性质化简它们的倒数的差，从而得到这3个数大小关系【解答】解：令2x=3y=5z=k，由x、y、z均为正数得k＞1，则x=log2k，y=log3k，z=log5k，∴2x=2log2k，3y=3log3k、5z=5log5k，∴﹣=log k2﹣log k3=log k=log k（）＜0，∴＜，∴2x＞3y．同理可得5z＞2x，故选：B7．在△ABC中，内角A，B，C的对边分别为a，b，c，若cosA=，c﹣a=2，b=3，则a等于（）A．2 B．C．3 D．【考点】余弦定理．【分析】由已知条件和余弦定理可得a的方程，解方程可得．【解答】解：由题意可得c=a+2，b=3，cosA=，∴由余弦定理可得cosA=•，代入数据可得=，解方程可得a=2故选：A8．已知直线和椭圆交于不同的两点M，N，若M，N在x轴上的射影恰好为椭圆的两个焦点，则椭圆的离心率为（）A．B．C．D．【考点】直线与椭圆的位置关系．【分析】由题意求得M点坐标，将M代入直线方程，利用椭圆的性质，即可求得椭圆的离心率．【解答】解：由题意可知：M，N在x轴上的射影恰好为椭圆的两个焦点，则M （c，），则=×c，则3b2=2ac，即3c2+2ac﹣3a2=0，两边同除以a2，整理得：3e2+2e﹣3=0，解得：e=﹣或e=，由0＜e＜1，故e=，故选：C．9．函数y=asinx﹣bcosx的一条对称轴为x=，则直线l：ax﹣by+c=0的倾斜角为（）A．45°B．60°C．120° D．135°【考点】直线的倾斜角；由y=Asin（ωx+φ）的部分图象确定其解析式．【分析】函数f（x）=asinx﹣bcosx图象的一条对称轴方程是，推出f（+x）=f（﹣x）对任意x∈R恒成立，化简函数的表达式，求出a，b的关系，然后求出直线的倾斜角，得到选项．【解答】解：f（x）=asinx﹣bcosx，∵对称轴方程是x=，∴f（+x）=f（﹣x）对任意x∈R恒成立，asin（+x）﹣bcos（+x）=asin（﹣x）﹣bcos（﹣x），asin（+x）﹣asin（﹣x）=bcos（+x）﹣bcos（﹣x），用加法公式化简：2acos sinx=﹣2bsin sinx 对任意x∈R恒成立，∴（a+b）sinx=0 对任意x∈R恒成立，∴a+b=0，∴直线ax﹣by+c=0的斜率K==﹣1，∴直线ax﹣by+c=0的倾斜角为．故选D．10．已知x，y为正实数，且x+y++=5，则x+y的最大值是（）A．3 B．C．4 D．【考点】基本不等式在最值问题中的应用．【分析】两次利用基本不等式即可得出．【解答】解：∵x+y++=5，∴（x+y）[5﹣（x+y）]=（x+y）（+）=2++≥2+2=4，∴（x+y）2﹣5（x+y）+4≤0，∴1≤x+y≤4，∴当且仅当x=y=2时，x+y取最大值4．故选：C．11．过双曲线x2﹣=1的右支上一点P，分别向圆C1：（x+4）2+y2=4和圆C2：（x﹣4）2+y2=1作切线，切点分别为M，N，则|PM|2﹣|PN|2的最小值为（）A．10 B．13 C．16 D．19【考点】双曲线的简单性质．【分析】求得两圆的圆心和半径，设双曲线x2﹣=1的左右焦点为F1（﹣4，0），F2（4，0），连接PF1，PF2，F1M，F2N，运用勾股定理和双曲线的定义，结合三点共线时，距离之和取得最小值，计算即可得到所求值．【解答】解：圆C1：（x+4）2+y2=4的圆心为（﹣4，0），半径为r1=2；圆C2：（x﹣4）2+y2=1的圆心为（4，0），半径为r2=1，设双曲线x2﹣=1的左右焦点为F1（﹣4，0），F2（4，0），连接PF1，PF2，F1M，F2N，可得|PM|2﹣|PN|2=（|PF1|2﹣r12）﹣（|PF2|2﹣r22）=（|PF1|2﹣4）﹣（|PF2|2﹣1）=|PF1|2﹣|PF2|2﹣3=（|PF1|﹣|PF2|）（|PF1|+|PF2|）﹣3=2a（|PF1|+|PF2|﹣3=2（|PF1|+|PF2|）﹣3≥2•2c﹣3=2•8﹣3=13．当且仅当P为右顶点时，取得等号，即最小值13．故选B．12．已知函数f（x）=aln（x+1）﹣x2，在区间（0，1）内任取两个不相等的实数p，q，若不等式＞1恒成立，则实数a的取值范围是（）A．[15，+∞）B．[6，+∞）C．（﹣∞，15]D．（﹣∞，6]【考点】利用导数求闭区间上函数的最值；利用导数研究曲线上某点切线方程．【分析】由不等式进行转化判断函数的单调性，求函数的导数，利用参数分离法进行求解即可．【解答】解：因为p≠q，不妨设p＞q，由于，所以f（p+1）﹣f（q+1）＞p﹣q，得[f（p+1）﹣（p+1）]﹣[f（q+1）﹣（q+1）]＞0，因为p＞q，所以p+1＞q+1，所以g（x）=f（x+1）﹣（x+1）在（0，1）内是增函数，所以g'（x）＞0在（0，1）内恒成立，即恒成立，所以a＞（2x+3）（x+2）的最大值，因为x∈（0，1）时（2x+3）（x+2）＜15，所以实数a的取值范围为[15，+∞）．故选：A．二、填空题：本大题共4小题，每小题5分．13．抛物线y=﹣4x2的准线方程是．【考点】抛物线的简单性质．【分析】化抛物线的方程为标准方程，可得p值，结合抛物线的开口方向可得方程．【解答】解：化抛物线方程为标准方程可得，由此可得2p=，故，，由抛物线开口向下可知，准线的方程为：y=，故答案为：14．如图为某几何体的三视图，则该几何体的体积为π．【考点】由三视图求面积、体积．【分析】直观图是高为2的圆柱沿着右上到左下切开所剩下的一半图形，体积为对应的圆柱的体积的一半，即可得出结论．【解答】解：直观图是高为2的圆柱沿着右上到左下切开所剩下的一半图形，体积为对应的圆柱的体积的一半，即=π．故答案为π．15．已知x，y满足，若目标函数z=3x+y的最大值为10，则m的值为5．【考点】简单线性规划．【分析】作出不等式组对应的平面区域，根据z的几何意义，利用数形结合即可得到m的值．然后即可得到结论．【解答】解：不等式组对应的平面区域如图：由z=3x+y得y=﹣3x+z平移直线y=﹣3x+z，则由图象可知当直线y=﹣3x+z经过点C时，直线y=﹣3x+z 的截距最大，此时z最大，为3x+y=10由，解得，即C（3，1），此时C在2x﹣y﹣m=0上，则m=5．故答案为：5．16．已知等腰△OAB中，|OA|=|OB|=2且，那么的取值范围是[﹣2，4）．【考点】平面向量数量积的运算．【分析】用表示出，将平方可得的范围，再利用数量积的定义得出的最值．【解答】解：∵=||，∴≥（），又，∴≥﹣2．又=2×2×cosA＜4，∴﹣2≤＜4．故答案为：[﹣2，4）．三、解答题：本大题共5小题，共70分．解答应写出文字说明，证明过程或演算步骤．17．在△ABC中，a，b，c分别为内角A，B，C的对边，且asinB=﹣bsin（A+）．（1）求A；（2）若△ABC的面积S=c2，求sinC的值．【考点】余弦定理；正弦定理．【分析】（1）由正弦定理化简已知可得tanA=﹣，结合范围A∈（0，π），即可计算求解A的值．（2）由（1）可求sinA=，利用三角形面积公式可求b=，利用余弦定理可求a=，由正弦定理即可计算求解．【解答】（本题满分为12分）解：（1）∵asinB=﹣bsin（A+）．∴由正弦定理可得：sinAsinB=﹣sinBsin（A+）．即：sinA=﹣sin（A+）．可得：sinA=﹣sinA﹣cosA，化简可得：tanA=﹣，∵A∈（0，π），∴A=…6分（2）∵A=，∴sinA=，∵由S=c2=bcsinA=bc，可得：b=，∴a2=b2+c2﹣2bccosA=7c2，可得：a=，由正弦定理可得：sinC=…12分18．已知等差数列{a n}的前n项的和为S n，非常数等比数列{b n}的公比是q，且满足：a1=2，b1=1，S2=3b2，a2=b3．（Ⅰ）求a n与b n；（Ⅱ）设c n=2b n﹣λ•，若数列{c n}是递减数列，求实数λ的取值范围．【考点】等差数列与等比数列的综合；数列的求和．【分析】（Ⅰ）设等差数列{a n}的公差为d，运用等差数列和等比数列的通项公式，计算即可得到；（Ⅱ）化简c n=2b n﹣λ•=2n﹣3nλ，由题意可得c n+1＜c n对n∈N*恒成立，运用参数分离和数列的单调性，求得最大值，即可得到所求范围．【解答】解：（Ⅰ）设等差数列{a n}的公差为d，则2+a2=3q，且a2=q2，即有q2﹣3q+2=0，解得q=2或1（舍去），即有a2=4，d=2，则a n=2n，b n=2n﹣1；（Ⅱ）c n=2b n﹣λ•=2n﹣3nλ，＜c n对n∈N*恒成立，由题意可得c n+1即有2n+1﹣3n+1λ＜2n﹣3nλ，即2λ3n＞2n，即2λ＞（）n对n∈N*恒成立．由f（n）=（）n为递减数列，即有f（n）的最大值为f（1）=，则有2λ＞，解得．故实数λ的取值范围为（，+∞）．19．已知在边长为4的等边△ABC（如图1所示）中，MN∥BC，E为BC的中点，连接AE交MN于点F，现将△AMN沿MN折起，使得平面AMN⊥平面MNCB（如图2所示）．（1）求证：平面ABC⊥平面AEF；（2）若S BCNM=3S△AMN，求直线AB与平面ANC所成角的正弦值．【考点】直线与平面所成的角；平面与平面垂直的判定．【分析】（1）推导出AE⊥BC，AF⊥MN，MN⊥EF，从而MN⊥平面AEF，进而BC⊥平面AEF，由此能证明平面ABC⊥平面AEF．=3S△AMN，得，以F为原点，FE，FN，FA分别（2）由S四边形BCNM为x，y，z轴，建立空间直角系，利用向量法能求出直线AB与平面ANC所成角的正弦值．【解答】证明：（1）∵△ABC是等边三角形，E为BC的中点，∴AE⊥BC，∵MN∥BC，∴AF⊥MN，MN⊥EF，又AF∩FE=F，∴MN⊥平面AEF，∵BC∥MN，∴BC⊥平面AEF，∵BC⊂平面ABC，∴平面ABC⊥平面AEF．=3S△AMN，得，解：（2）由S四边形BCNM∵△ABC∽△AMN，且MN∥BC，∴（）2=，∴MN=，以F为原点，FE，FN，FA分别为x，y，z轴，建立空间直角系，则F（0，0，0），A（0，0，），B（），N（0，1，0），C（），=（0，1，﹣），=（），设平面ANC的法向量=（x，y，z），则，取z=1，得=（﹣1，，1），=（），设直线AB与平面ANC所成的角为α，则sinα==，∴直线AB与平面ANC所成角的正弦值为．20．在平面直角坐标系xOy中，已知椭圆C1： +=1（a＞b＞0）的离心率e=，且椭圆C1的短轴长为2．（1）求椭圆C1的方程；（2）设A（0，），N为抛物线C2：y=x2上一动点，过点N作抛物线C2的切线交椭圆C1于B，C两点，求△ABC面积的最大值．【考点】直线与椭圆的位置关系；直线与抛物线的位置关系．【分析】（1）由题意的离心率公式求得a2=4b2，由b=1，求得a的值，求得椭圆C1的方程；（2）设曲线C：y=x2上的点N（t，t2），由导数几何意义求出直线BC的方程为y=2tx﹣t2，代入椭圆方程，由此利用根的判别式、韦达定理、弦长公式及二次函数的最值，即可求出△ABC面积的最大值．【解答】解：（1）∵椭圆C1： +=1（a＞b＞0）的离心率e=，∴e﹣==，∴a2=4b2，椭圆C1的短轴长为2，即2b=2，b=1，a2=4，∴椭圆方程为：；（2）设曲线C：y=x2上的点N（t，t2），B（x1，y1），C（x2，y2），∵y′=2x，∴直线BC的方程为y﹣t2=2t（x﹣t），即y=2tx﹣t2，①将①代入椭圆方程，整理得（1+16t2）x2﹣16t3x+4t4﹣4=0，则△=（16t3）2﹣4（1+16t2）（4t4﹣4）=16（﹣t4+16t2+1），且x1+x2=，x1x2=，∴|BC|=|x1﹣x2|=•=，设点A到直线BC的距离为d，则d=，∴△ABC的面积S=|BC|d=••=≤，当t=±2时，取到“=”，此时△＞0，满足题意，∴△ABC面积的最大值为．21．已知函数f（x）=（其中k∈R，e=2.71828…是自然数的底数），f′（x）为f（x）的导函数．（1）当k=2时，求曲线y=f（x）在点（1，f（1））处的切线方程；（2）若x∈（0，1]时，f′（x）=0都有解，求k的取值范围；（3）若f′（1）=0，试证明：对任意x＞0，f′（x）＜恒成立．【考点】利用导数研究曲线上某点切线方程；导数在最大值、最小值问题中的应用．【分析】（1）求出当k=2时，f（x）的导数，求得切线的斜率和切点，由点斜式方程即可得到切线方程；（2）由f′（x）=0可得k=，运用导数求得右边函数的最大值，即可得到k的范围；（3）由f′（1）=0，可得k=1，对任意x＞0，g（x）＜e﹣2+1等价为1﹣x﹣xlnx＜（e﹣2+1），先证1﹣x﹣xlnx≤e﹣2+1，可由导数求得，再证＞1．即可证得对任意x＞0，f′（x）＜恒成立．【解答】解：（1）当k=2时，f（x）=的导数为f′（x）=（x＞0），f′（1）=﹣，f（1）=，在点（1，f（1））处的切线方程为y﹣=﹣（x﹣1），即为y=﹣x+；（2）f′（x）=0，即=0，即有k=，令F（x）=，由0＜x≤1，F′（x）=﹣＜0，F（x）在（0，1）递减，x→0，F（x）→+∞，F（x）≥1，即k≥1；（3）证明：由f′（1）=0，可得k=1，g（x）=（x2+x）f′（x），即g（x）=（1﹣x﹣xlnx），对任意x＞0，g（x）＜e﹣2+1等价为1﹣x﹣xlnx＜（e﹣2+1），由h（x）=1﹣x﹣xlnx得h′（x）=﹣2﹣lnx，当0＜x＜e﹣2时，h′（x）＞0，h（x）递增，当x＞e﹣2时，h′（x）＜0，h（x）递减，则h（x）的最大值为h（e﹣2）=1+e﹣2，故1﹣x﹣xlnx≤e﹣2+1，设φ（x）=e x﹣（x+1），φ′（x）=e x﹣1，x＞0时，φ′（x）＞0，φ（x）＞0，φ（x）＞φ（0）=0，则x＞0时，φ（x）=e x﹣（x+1）＞0即＞1．即1﹣x﹣xlnx≤e﹣2+1＜（e﹣2+1），故有对任意x＞0，f′（x）＜恒成立．请考生在第22、23两题中任选一题作答，如果多做．则按所做的第一题记分．[选修4-4：坐标系与参数方程]（共1小题，满分10分）22．在极坐标系中，已知圆C的圆心C（，），半径r=．（Ⅰ）求圆C的极坐标方程；（Ⅱ）若α∈[0，），直线l的参数方程为（t为参数），直线l 交圆C于A、B两点，求弦长|AB|的取值范围．【考点】简单曲线的极坐标方程；直线与圆的位置关系；参数方程化成普通方程．【分析】（Ⅰ）先利用圆心坐标与半径求得圆的直角坐标方程，再利用ρcosθ=x，ρsinθ=y，ρ2=x2+y2，进行代换即得圆C的极坐标方程．（Ⅱ）设A，B两点对应的参数分别为t1，t2，则|AB|=|t1﹣t2|，化为关于α的三角函数求解．【解答】解：（Ⅰ）∵C（，）的直角坐标为（1，1），∴圆C的直角坐标方程为（x﹣1）2+（y﹣1）2=3．化为极坐标方程是ρ2﹣2ρ（cosθ+sinθ）﹣1=0 …（Ⅱ）将代入圆C的直角坐标方程（x﹣1）2+（y﹣1）2=3，得（1+tcosα）2+（1+tsinα）2=3，即t2+2t（cosα+sinα）﹣1=0．∴t1+t2=﹣2（cosα+sinα），t1•t2=﹣1．∴|AB|=|t1﹣t2|==2．∵α∈[0，），∴2α∈[0，），∴2≤|AB|＜2．即弦长|AB|的取值范围是[2，2）…[选修4-5：不等式选讲]（共1小题，满分0分）23．设函数f（x）=|2x﹣1|﹣|x+2|．（Ⅰ）解不等式f（x）＞0；（Ⅱ）若∃x0∈R，使得f（x0）+2m2＜4m，求实数m的取值范围．【考点】绝对值不等式的解法；分段函数的应用．【分析】（1）利用零点分区间讨论去掉绝对值符号，化为分段函数，在每一个前提下去解不等式，每一步的解都要和前提条件找交集得出每一步的解，最后把每一步最后结果找并集得出不等式的解；（2）根据第一步所化出的分段函数求出函数f（x）的最小值，若∃x0∈R，使得f（x0）+2m2＜4m成立，只需4m﹣2m2＞f min（x），解出实数m的取值范围．【解答】解：（Ⅰ）①当x＜﹣2时，f（x）=1﹣2x+x+2=﹣x+3，令﹣x+3＞0，解得x＜3，又∵x＜﹣2，∴x＜﹣2；②当﹣2≤x≤时，f（x）=1﹣2x﹣x﹣2=﹣3x﹣1，令﹣3x﹣1＞0，解得x＜﹣，又∵﹣2≤x≤，∴﹣2≤x＜﹣；③当x时，f（x）=2x﹣1﹣x﹣2=x﹣3，令x﹣3＞0，解得x＞3，又∵x，∴x＞3．综上，不等式f（x）＞0的解集为（﹣∞，﹣）∪（3，+∞）．（Ⅱ）由（I）得f（x）=，∴f min（x）=f（）=﹣．∵∃x0∈R，使得f（x0）+2m2＜4m，∴4m﹣2m2＞﹣，整理得：4m2﹣8m﹣5＜0，解得：﹣＜m＜，∴m的取值范围是（﹣，）．2017年4月23日。
宁夏银川一中高三第六次考试文科综合试卷
某某某某一中2017届高三第六次考试文科综合试卷第Ⅰ卷（选择题，140分）本卷共35个小题，每小题4分，共140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。
风尘沉积通量大小可以指示地区干燥度的变化。
下图反映了青藏高原隆起与西北地区的风尘沉积通量变化情况。
读图1回答1～2题。
图11．从水循环的过程看，青藏高原隆起影响西北地区同期风尘沉积通量变化的主要环节是（）A．地面蒸发B．大气降水C．水汽输送D．地面径流2．根据图某某息分析判断，青藏高原的隆起对西北地区地理环境的影响是（）①气候的大陆性变强①植被覆盖率增大①太阳辐射更强①河湖及其水量增加A．①④ B．②③ C．①③ D．③④下表是36°N～38°N两地的日平均日照时数（多年平均，单位：小时）统计表，两地海拔均低于100米。
分析回答3～5题。
C．地中海气候D．温带海洋性气候4．关于①、②两地的位置判断，正确的是（）A．① 位于大陆东岸B．① 位于大陆东岸C．① 深居大陆内部D．①、① 均位于大陆西岸5．关于①、②两下列说法正确的是（）A．①地适宜发展大牧场放牧业B．②地乙地为季风水田农业C．①国农业技术发达，其粮食大量出口国际市场D．②地生产的橄榄油、葡萄酒品质上乘下图2是我国江南某城市及近郊地区X围图。
图3中①②③④是四条线附近地区的夏季午后多年平均气温分布图。
读图完成6～7题。
图2图36．图中O处最可能是（）A．文化区B．中心商务区C．城市广场D．森林公园7．该城市的城市地域形态可能为（）A．集中式B．条带式C．放射式D．组团式改革开放以来，中国汽车工业快速崛起，目前我国已成为全球最大的汽车生产国。
同时自主品牌汽车开始走出国门，到巴西投资建厂。
图4为我国各地区2000年和2010年汽车产量比较图。
完成8～9题。
图48．对我国汽车生产的判断正确的是（）A．东、中部的增长量均大于西部和东北部B．各地区的汽车生产数量与当地的社会经济条件相一致C．东部地区汽车产业的高速发展与当地巨大的市场需求紧密相关D．东北地区的汽车生产增量较少是由于当地铁矿枯竭，配套工业衰退导致9．我国汽车企业到巴西投资建厂，主要的原因是（）A．当地市场对汽车的需求量不断增加B．充分依靠当地的技术和廉价的海运C．当地廉价的劳动力有利于利润最大化D．当地有发展汽车工业必需的自然资源图5为“我国某某港位置图”。
2017届高三第六次考试英语试卷-答案
宁夏银川一中2017届高三第六次考试英语试卷答案1~5．BCBCA 6~10．ABACC 11~15．ABACB 16~20．BBACA 21~23．BCB24~27．DDAC 28~31．ABBC 32~35．DADD 36~40．AGCBF 41~45．ABDCB 46~50．CCBAC 51~55．BCADC 56~60．BABAB61．Where 62．Explanation（s）63．safer 64．But 65．my66．was hurt 67．clearly 68．had read 69．With 70．regretting短文改错:I spent a lot of time in Yichang, Hubei Province, where I worked as the （改为an）English teacher. Like any other city, Yichang has its good side or （改为and）bad side. My first few days there are （改为were）very hard. The local people often stared at me, that （改为which）made me feel quite uncomfortable. Later, they （改为I）realized it was just because these people were curiosity （改为curious）, and I started to see the good side. They were always smiling and ready to offering （改为offer）a hand．They were very much （删much）traditional, so wherever I went I saw people neither （改为either）wearing traditional clothes or doing some traditional things. In the end I got accustomed （加to）the simple life there．书面表达:One possible versionDear fellow students,Recently I have found many of us students spend too much time sending short messages or playing games on cell phones, which has negative effects on our studies and also does harm to our eyes. Worse still, we have little time to communicate with our parents and friends. Nor do we have time for physical exercise.What shall we do to improve the situation? All of us should be fully aware of the harmful effects of frequent use of cell phones. To begin with, let’s limit our time of playing with cell phones and start other hobbies. What’s more, we should spend more time playing sports, which is beneficial to us. Besides, communicating with our friends is also a good choice to help us relax and get rid of the addiction. I hope that my suggestions will be of help to you.Let’s put down our cell phones and focus on what is happening around us!Let’s take action now!That’s all．Thank you for your listening．- 1 - / 1。
【全国百强校】2017届宁夏银川一中高三第二次模拟理综物理试卷(带解析)
绝密★启用前【全国百强校】2017届宁夏银川一中高三第二次模拟理综物理试卷（带解析）试卷副标题考试范围：xxx ；考试时间：0分钟；命题人：xxx学校:___________姓名：___________班级：___________考号：___________注意事项．1．答题前填写好自己的姓名、班级、考号等信息 2．请将答案正确填写在答题卡上第I 卷（选择题）一、选择题（题型注释）1、下列说法正确的是A ．光电效应说明光具有粒子性,康普顿效应说明光具有波动性B ．氢原子核外电子从半径较小的轨道跃迁到半径较大的轨道时，由于电子的动能减少，所以原子总能量减少C ．碳14的半衰期为5730年，若测得一古生物遗骸中碳14含量只有活体中的，则此遗骸距今约有17190年D ．紫外线照射到金属锌板表面时能够发生光电效应，若增大紫外线的照射强度，从锌板表面逸出的光电子的最大初动能也随之增大2、右图为中国月球探测工程的标志，它以中国书法的笔触，勾勒出一轮明月和一双踏在其上的脚印，象征着我国航天人的梦想。
银川一中一位爱好天文的同学看到后结合自己所学为探月宇航员设计了如下实验：在距月球表面高h 处以初速度v 0水平抛出一个物体，然后测量该平抛物体的水平位移为x ，通过查阅资料知道月球的半径为R ，引力常试卷第2页，共10页量为G ，若物体只受月球引力的作用，则，月球的质量是A ．B ．C ．D ．3、如图所示，平板小车置于水平面上，其上表面粗糙，物块在小车中间保持静止。
t=0时，对小车施加水平外力F ，使小车从静止开始加速运动，t 0时刻，物块从小车左端滑离木板，2t 0时刻物块落地。
在竖直平面内建立Oxy 坐标系，取水平向右为x 轴正方向，竖直向下为y 轴正方向，则关于物块落地前在x 轴和y 轴方向的运动图像，以下可能正确的是（ ）A ．B ．C ．D ．4、如图所示，长为1m 的轻绳一端固定在O 点，另一端悬挂一小球，在O 点右侧P 点固定一光滑小细铁钉，O 、P 及小球在同一竖直面内，O 、P 连线与竖直方向的夹角为370。
【宁夏银川一中】2017届高三第六次考试数学(文科)试卷-答案
宁夏银川一中2017届高三第六次考试数学（文科）试卷答 案1~5．CBABD 6~10．BCCAB11~12．AC13．614．015．16．3 61217．（Ⅰ）由222b c a bc +=+得222b c a bc +-=， 故2221cos 22b c a A bc +-== 又∵0A π<<∴60A =︒（Ⅱ）由2sin a A=得2sin a A ==由余弦定理得2222cos a b c bc A =+-即22212cos603422b c bc bc =+-︒=-⨯，即∴1bc =∴11sin 1sin6022ABC S bc A ==⨯⨯︒=△ 18．（Ⅰ）设数列}{n a 的公差为d ，由题意知112282412a d a d +=⎧⎨+=⎩解得12,2a d == 所以1(1)22(1)2n a a n d n n =+-=+-=（Ⅱ）由（Ⅰ）可得1()(22)(1)22n n a a n n n S n n ++===+因12,,k k a a S +成等比数列，所以212k k a a S +=从而2(2)2(2)(3)k k k =++，即2560k k --=解得6k =或1k =-（舍去），因此6k =．19．（Ⅰ）设O 为AC 的中点，连接,OS OD ，,SA SC OS AC =∴⊥,,DA DC DO AC =∴⊥又,OS OD ⊂平面SOD ，且OS DO O =，AC ⊥平面SOD ，又SD ⊂平面SODAC SD ∴⊥（Ⅱ）连接BD ，在ASC △中，,SA SC =060ASC ∠=，O 为AC 的中点， ASC ∴△为正三角形，且2,AC OS ==在ADC △中，2224DA DC AC +==，O 为AC 的中点，090ADC ∴∠=，且1OD =，在SOD △中，222OS OD SD +=SOD ∴△为直角三角形，且090SOD ∠=SO OD ∴⊥又OS AC ⊥，且AC DO O =SO ∴⊥平面ABCD13B SAD S BAD BAD V V S SO --∆∴==11113232AD CD SO =⨯=⨯=20． （1）设椭圆C 的方程为22221(0)x y a b a b+=>>，半焦距为c ． 依题意12c e a ==，由椭圆C 上的点到右焦点的最大距离3，得3a c +=，解得1,2c a ==， 所以 2223b a c =-=，所以椭圆C 的标准方程是22+143x y =． （2）设直线l 的方程为y kx m =+，由22143y kx m x y =+⎧⎪⎨+=⎪⎩，得222(34)84120k x kmx m +++-=， 22(8)4(34)(412)0km k m =-+->△化简得2234k m +>．设1222(,),(,)A x y B x y ，则21212228412,3434km m x x x x k k -+=-=++． 以AB 为直径的圆过原点等价于0OA OB =，所以12120x x y y +=，即1212()()0x x kx m kx m +++=，则221212(1)()0k x x km x x m ++++=，222224128(1)03334m km k km m k k-+-+=++，化简得2271212m k =+． 将227112k m =-代入2234k m +>中，22734(1)12m m +->， 解得234m >．又由227121212m k =+≥，从而212,7m m ≥≥m 所以实数m的取值范围是2(,[21,)7-∞+∞． 21．（1）函数的定义域为(0,)+∞，2211ln ln ()x x f x x x --'==-． 令()0f x '=，得1x =；当(0,1)x ∈时，()0f x '>，()f x 单调递增； 当(1,)x ∈+∞时，()0f x '<，()f x 单调递减．所以，1x =为极大值点，所以112a a <<+，故112a <<，即实数a 的取值范围为1(,1)2． （2）当1x ≥时，(1)(1ln )x x k x ++≤，令(1)(1ln )()x x g x x++=， 则221[1ln 1](1)(1ln )ln ()x x x x x x x g x x x +++-++-'==．再令()ln h x x x =-， 则1()10h x x'=-≥，所以()(1)1h x h ≥=，所以()0g x '>， 所以()g x 为单调增函数，所以()(1)2g x g ≥=，故2k ≤． 22．（1）设圆上任意一点的坐标为(,)p θ由余弦定理，得222π2cos()4p p θ=+-- 整理得22(cos sin )10p p θθ-+-=（2）∵cos0,sin0x p y p ==∴222210x y x y +---=将直线的参数方程带入圆的直角坐标方程中，得22(2cos )(2sin )2(2cos )2(2sin )10t t t t αααα++-+-+-=整理，得2(2cos 2sin )10t t αα++-=，设12,t t 为该方程的两根．∴12122cos 2sin ,1t t t t αα+=--+=-∴12||||AB t t =-==∵π[0,)4a ∈∴π[0,)4a ∈∴||AB =∈23．（1）不等式()0f x >，即|21||2|x x ->+， 即2244144x x x x -+>++，∴23830x x -->，解得13x <-或3x > 所以不等式()f x o >的解集为1|33x x x ⎧⎫<->⎨⎬⎭⎩或 （2）3,21()|21||2|31,2213,2x x f x x x x x x x ⎧⎪-+<-⎪⎪=--+=---≤≤⎨⎪⎪->⎪⎩故()f x 的最小值为15()22f =-因为0x ∃∈R ，使得20()24f x m m +< 所以25422m m ->- ∴1522m -<<。
2017届宁夏银川一中高三第三次模拟考试理科综合试题及答案
绝密★启用前2017年普通高等学校招生全国统一考试理科综合能力测试(银川一中第三次模拟考试)本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分，其中第Ⅱ卷第33～40题为选考题，其它题为必考题。
考生作答时，将答案答在答题卡上，在本试卷上答题无效。
考试结束后，将本试卷和答题卡一并交回。
注意事项：1．答题前，考生务必先将自己的姓名、准考证号填写在答题卡上，认真核对条形码上的姓名、准考证号，并将条形码粘贴在答题卡的指定位置上。
2．选择题答案使用2B铅笔填涂,如需改动，用橡皮擦干净后，再选涂其他答案的标号；非选择题答案使用0.5毫米的黑色中性（签字）笔或碳素笔书写，字体工整、笔迹清楚。
3．请按照题号在各题的答题区域(黑色线框)内作答超出答题区域书写的答案无效。
4．保持卡面清洁，不折叠，不破损。
5．做选考题时，考生按照题目要求作答，并用2B铅笔在答题卡上把所选题目对应的题目涂黑。
可能用到的相对原子质量：H:1 C:12 N:14 O:16 Al:27 S:32 Fe:56 Cr:52Cu:64第Ⅰ卷一、选择题：本题共13小题，每小题6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．用光学显微镜观察装片时，下列操作正确的是A．将物镜对准通光孔B．先用高倍镜，后用低倍镜观察C．观察颜色浅的材料时用凹面镜和大光圈D．使用高倍镜时，用粗准焦螺旋调节2．下列有关生物学实验材料或试剂的叙述，正确的是A．可用紫色洋葱外表皮细胞观察DNA和RNA的分布B．可用菠菜叶肉细胞观察线粒体C．通常用层析液分离和提取绿叶中的色素研究色素的种类和含量D．恩格尔曼利用好氧细菌检测光合作用释放氧气的部位3．下列对相关细胞器的叙述中，正确的是A．吞噬细胞的溶酶体可释放水解酶将细胞摄取的病原体分解B．细胞质基质中的葡萄糖进入线粒体被利用需要经过2层生物膜C．植物细胞有丝分裂末期，细胞中央出现细胞板与高尔基体有关D．植物光合作用有关的色素可分布于叶绿体和液泡中4．以下不属于反馈调节的是A．水体遭受污染后生物大量死亡进一步导致水体污染加重B．机体再次感染SARS病毒时，迅速产生更多的效应淋巴细胞C．草原上蛇与鼠的数量通过捕食和被捕食保持相对稳定D．胎儿分娩时刺激缩宫素的释放，缩宫素浓度升高进一步刺激子宫收缩O —C —C —BrO CH 32OH5．右图表示细胞内某些重要物质的合成过程。
宁夏银川一中2017届高三第六次考试英语试题含答案
银川一中2017届高三年级第六次月考英语试卷（总分：150分；考试时间：120分钟）本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。
考生作答时，将答案答在答题卡上，在本试卷上答题无效。
考试结束后，将本试卷和答题卡一并交回。
注意事项：1．答题前，考生务必先将自己的姓名、准考证号填写在答题卡上，认真核对条形码上的姓名、准考证号，并将条形码粘贴在答题卡的指定位置上。
2．选择题答案使用2B铅笔填涂,如需改动，用橡皮擦干净后，再选涂其他答案的标号；非选择题答案使用0.5毫米的黑色中性（签字）笔或碳素笔书写，字体工整、笔迹清楚。
3．请按照题号在各题的答题区域(黑色线框)内作答，超出答题区域书写的答案无效。
4．保持卡面清洁，不折叠，不破损。
第Ⅰ卷第一部分：听力（共两节，满分30分）第一节(共5小题：每小题1.5分，满分7.5分)听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1．When does the woman’s train leave?A．At 10:00 tonight．B．At 5:10 tomorrow morning．C．At 10:00 tomorrow morning ．2．What does the woman want to do?A．Go out of the room．B．Let the man in．C．Open the window．3．How long has the man been waiting for the woman?A．5 minutes B．15 minutes C．20 minutes4．What may the speakers do this weekend?A．Watch a movie B．Play table tennis C．Climb a mountain 5．How will the man probably go downtown ?A．By bus B．By taxi C．By subway第二节（共15小题；每小题1.5分，满分22.5分）听下面5段对话或独白。
【宁夏银川一中】2017届高三第六次考试英语试卷
宁夏银川一中2017届高三第六次考试英语试卷第Ⅰ卷第一部分:听力（共两节,满分30分）第一节（共5小题:每小题1.5分,满分7.5分）听下面5段对话,每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置.听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题,每段对话仅读一遍. 1．When does the woman’s train leave? ________A．At 10:00 tonight.B．At 5:10 tomorrow morning.C．At 10:00 tomorrow morning.2．What does the woman want to do? ________A．Go out of the room.B．Let the man in.C．Open the window.3．How long has the man been waiting for the woman? ________.A．5 minutes B．15 minutes C．20 minutes4．What may the speakers do this weekend? ________.A．Watch a movie B．Play table tennis C．Climb a mountain5．How will the man probably go downtown? ________.A．By bus B．By taxi C．By subway第二节（共15小题;每小题1.5分,满分22.5分）听下面5段对话或独白,每段对话或独白后有几个小题,从每题所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置.听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间,每段对话或独白读两遍.请听第6段材料,回答第6~7题第二节（共15小题:每小题1.5分,满分22.5分）6．What happened to the man’s bike? ________A．It was hit by a car.B．It was stolen yesterday afternoon.C．It was broken when he was riding it.7．What day is it today probably? ________A．Friday. B．Saturday. C．Sunday.听第7段材料,回答第8~9题8．When does the conversation probably take place? ________A．At night. B．In the afternoon. C．In the morning. 9．What is the woman probably doing? ________A．Listening to the radio. B．Writing some reports. C．Watching TV.听第8段材料,回答第10~12题.10．Where does the man want to go? ________A．Australia. B．Singapore . C．New Zealand. 11．What time will Flight 212take off? ________A．At 12:30 pm. B．At 1:30 pm. C．At 2:00 pm. 12．How long will the whole journey take? ________A．About twenty-three hours B．About twenty-one hours C．About nineteen hours 听第9段材料,回答第13~16题13．Who laugh at the woman? ________A．Her neighbors. B．Her relatives. C．Her colleagues. 14．How has the woman been trying to lose weight? ________A．By eating healthy food more. B．By taking some medicine. C．By eating less. 15．What do we know about the woman? ________A．She prefers hamburgers to hot dogs.B．She wants to find a new job.C．She is really wealthy.16．What advice does the man give the woman? ________A．Going to a gym at regular times.B．Taking the bus one stop fewer.C．Stopping using the elevator.听第10段材料,回答第17~20题.17．Which fact of Sydney does the speaker mention? ________A．It has a population of less than three million.B．It is a place of natural beauty with green parkland.C．It has the world’s biggest deep water harbor.18．What date（s）back to the early nineteenth century? ________A．The Rocks.B．Houses in Paddington.C．The Koala Bear Park.19．How do many people like the Opera House? ________A．It’s one of the oldest buildings in the world.B．It’s one of the largest buildings in the world.C．It’s one of the most outstanding buildings in the world.20．What is the temperature difference between summer and winter in Sydney? ________A．8℃B．12℃C．20℃第二部分:阅读理解（每小题2分,共计40分）第一节:阅读下列短文,从每题所给的A、B、C、D四个选项中,选出最佳选项.ACheck out some fun weekend activities from our friends at Arizona Parenting. Walk in the wild: Walk or run for wildlife at the Phoenix Zoo’s Walk in the Wild 2016. Put on your favorite animal dress and take part in the one mile or 5K, enjoying the sights and sounds of the Zoo. Walk in the Wild includes a morning full of unique activities you won’t find at any other valley walk, including all-day zoo admission and a lakeside after-party.Register online.6-10 am. Phoenix Zoo, 455North Galvin Parkway, Phoenix.602-286-3800.Free Museum Day: It is hosted by Sesame Street and HBO at the Children’s Museum of Phoenix. Kids can participate in activities, enjoy a performance by the Sesame Street Muppets and get to join the Everyday Heroes Club. An act of kindness is all it takes to become a member. Performances and activities will take place at 10:30-11:30 am and 1:30-2:30 pm.9 am.-4 pm. Children’s Museum of Phoenix, 215N.7th Street, Phoeni.602-253-0501.Sunday A’ Fair: Sunday A’ Fair features free outdoor concerts in Scottsdale Civic Center Park by top Arizona musicians, along with an arts-and crafts market, fun activities for children and families, guided tours of the sculptures in the park and free admission to Scottsdale Museum of Contemporary Art（SMoCA）.Guests are invited to bring blankets, lawn chairs or picnic baskets, and enjoy a relaxing afternoon of great entertainment. Delicious foods, snacks, beer, wine and soft drinks are also available for purchase.12-4 pm. Scottsdale Center for the Performing Arts, 7380 E.2nd St, Scottsdale.480-994-ARTS（2787）. 21．What can children do at Walk in the Wild? ________A．Join in the 5-mile walk. B．Enjoy good company of wild animals.C．Wear favorite clothes. D．Attend courses for free.22．What qualification is needed to join the Everyday Heroes Club? ________A．Be active in school activities. B．Present a wonderful performance.C．Do a good deed. D．Be ready to help protect wildlife.23．Where can one go to buy some works of art? ________A．The Phoenix Zoo.B．Scottsdale Civic Center Park.C．Scottsdale Museum of Contemporary Art.D．The Children’s Museum of Phoenix.BJoey was born with club feet（畸形足）.The doctors convinced his parents that with treatment he would be able to walk normally—but would never run very well. The first three years of his life were spent in surgery, casts and braces. By the time he was eight, you wouldn’t know he had a problem when you saw him walk.The children in his neighborhood ran around during play, and Joey would jump right in and run and play, too. His parents never told him he probably wouldn’t be able to run as well as the other children. So he didn’t know.In seventh grade he decided to go out for the cross-country team. Every day he trained with the team. He worked harder than others—perhaps he sensed the abilities that seemed to come naturally to others did not come naturally to him. Although the entire team ran, only the top seven runners would be chosen. His parents didn’t tell him he probably would never make the team. So he didn’t know.He continued to run four to five miles a day, every day—even the day he had a fever of 103 degrees Fahrenheit. His mother was worried, so she went to look for him after school. She found him running all alone. The sweat ran down his face. Yet he looked straight ahead and kept running. His parents never told him he couldn’t run four miles with a high fever. So he didn’t know.Two weeks later, the names of the team runners were posted. Joey was number six on the list. Joey had made the tea. His parents never told him he shouldn’t expect to make the team. They never told him he couldn’t do it. So he didn’t know. He just did it.24．What can we know about Joey as a child? ________A．He couldn’t walk normally at 8.B．He admired other kids for running.C．The born disability made him anxious.D．He received much medical treatment.25．What’s Joey’s mother’s attitude to his training for the team? ________A．Sympathetic and anxious.B．Optimistic and encouraging.C．Disapproving with much self-blame.D．Supportive with little expectation.26．Why didn’t Joey’s parents tell him the truth? ________A．To avoid setting limits to his potential.B．For fear he couldn’t make the team.C．To encourage him to run like other kids.D．In case he would be looked down upon.27．The reason why the author repeats “So he didn’t know.” is ________A．to draw a conclusion.B．to show the author’s emotion.C．to help the story develop.D．to arouse readers’ interest.CSince 1984, Philadelphia has been cleaning up its act. One by one, graffiti（涂鸦）-covered walls are being changed into outdoor art. So far, more than 1 800 murals（壁画）have been painted. Philadelphia now has moremurals than any other American city.The walls that were once ugly with graffiti are now covered with beautiful pictures of historical heroes and modern art, thanks to the Mural Arts Program（MAP）.Its work makes schools and public places attractive, and its citizens are very proud. The program began as part of Philadelphia’s Anti-Graffiti Network. Jane Golden is the MAP’s artistic director. “When people ask me what our program is about,”she says, “I answer them with one word: hope.”Each year, the MAP offers youth art programs and workshops. Some one-time graffiti writers even help paint MAP murals.The MAP’s work, says Golden, is all about developing a sense of community（社区）.When a neighborhood requests a mural, the MAP works with the people there to develop a message. Some messages have been “safe Streets,”“Love and Care,” and “Peace Walk.”The MAP receives up to 50 requests for murals each week. Last year, the workers painted 140 murals. “The making of a mural enters people’s collective memory as an extraordinary, pleasant moment in neighborhood history”says Golden, who began as a muralist in Los Angeles.28．What can be the best title for the text? ________A．Hope, One Wall at a Time.B．MAP, a New Company in Philadelphia.C．Jane, an Excellent Mural Artist.D．Love, from Graffiti Writers to Muralists.29．What is the Mural Arts Program in Philadelphia aimed at? ________A．Helping the young find jobs. B．Fighting against graffiti.C．Protecting the neighborhood. D．Attracting more visitors.30．How does the MAP decide on the message for a mural? ________A．By seeking advice from the city government.B．By having discussions with people in the community.C．By learning from the young graffiti writers.D．By studying the history of the city.31．Which of the following words best describes the work of the MAP? ________A．Difficult. B．Dangerous. C．Successful. D．Experimental.DThere are many weight loss products, plans and programs available in the market. However, if most of these programs were effective, we would see obesity trends reversing, yet we are witnessing more and more people struggling with weight.Experiences of dieters regaining pre-dieting weight within 5 years are common. Therefore, a fitness program that works over a long period of time is something you should be looking for. Before reaching for your wallet or purse, make sure the program is exactly what it claims to be.Professional endorsement（认可）.A good program should not insist on offering pills, injections, powders or similar products that are not endorsed by a medically trained professional. Your choice of programs should have been designed by a medically trained professional.Unrealistic promisesA good program should not make unrealistic promises, such as “To lose 5 pounds in a week, with no exercise!”Therefore, it is advisable to judge whether the promises being made are realistic. The plan should also have a high success rate of weight loss.QualificationA weight loss program should consider the health of the health of the applicants. It should consider their age, medical condition, gender, health background, medications and more, in order to make a plan that meets the needs of every applicant. A good program should include diet and exercise in order to promote permanent and good health. RestrictionA good program should not be overly restrictive（限制）on food allowances. Some programs ask you not to eat foods from the main/nutrient food groups like fruit and vegetables. A successful weight loss plan, for most people, should not involve less than 1 200 calories per day.Cost effectiveA long-term program does not have to cost you lots of money. An effective plan that is reasonably priced can save you a large sum of money that can be spent on other healthy habits. This can in turn improve your lifespan.We provide the best information about weight loss program. For further details please visit the provided links. 32．What does the underlined word “reversing” in Paragraph 1probably mean? ________A．Increasing quickly in a short time.B．Arranging things in the opposite order.C．Going faster in the same direction.D．Changing to the opposite direction.33．The test mainly contributes to ________A．better understanding of good weight loss programs.B．finding the cause of being overweight worldwide.C．selling more reasonably priced weight loss products.D．helping people avoid overweight by controlling diets.34．Which of the following is true according to the text? ________A．Medically trained professionals usually recommend medicines on purpose.B．No weight loss program can stop you regaining weight within five years.C．Weight loss programs always have to charge a large amount of money.D．We should take in at least 1, 200 calories every day to keep healthy.35．The text is probably taken from ________A．a newspaper B．a textbook C．a magazine D．a website第二节（共5小题:每小题2分,满分10分）根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,选项中有两项为多余选项.How to Write a Letter to ParentsAs a teacher, one of the most difficult parts of your job is working with parents. With proper communication, however, you can build bridges between the school and home. 36If you do it properly, this is an excellent way to communicate when you cannot meet with parents face to face. ·Put positive communication in the letter, even if you are writing to discuss a problem.37 Even if it is difficult, you must find this positive spin, because it will make the parents more open to what you have to discuss. The general rule is“start with the good, hit them with the bad, then end on a positive note”. ·38 Express your concern and desire to help. Do not place it completely on their shoulders, as they may resent （厌恶）this action. Show them through the letter that you want to work with them to find a solution.·Ask for a response. You can ask them to write back, sign a part of the letter or give you a call. 39 Be caring, but make sure they got the communication. Remember, your goal is to work together to help their child succeed. ·Consider mailing the letter to the parent, rather than sending it home with the student. Some students will intentionally forget to give the letter to their parents, while others will accidentally or purposely lose the letter. 40 A．Writing a letter to parents is one way to do this.B．If you do not hear from them, you should call them.C．Share the problem with the parents.D．Respect parents and never quarrel with them.E．Whenever you meet with problems, you should keep cool.F．Sending it in the mail makes it more certain that it will be received.G．You can do this by pointing out a gain the child has made recently.第三部分:英语知识运用（共两节,满分45分）第一节:完形填空（共20小题:每小题1.5分,满分30分）阅读下面短文,从短文后各题所给的四个选项（A、B、C和D）中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑.The Power of a TeacherAt the beginning of the second grade, I had just immigrated to Canada and could barely speak any English. I 41 my school’s English learning program, but I felt I was making little progress and was growing increasingly more nervous because nobody could 42 me at school. Making friends, joining clubs, and doing homework were all almost 43 tasks.However, my teacher, Ms. H, was always 44 with me. When I was angry because I could not find the words to ask for help, she would 45 talk to me in a gentle way and instinctively（本能地）46 , based on my body language, what I wanted, Furthermore, she 47 a girl to be my translator and buddy（伙伴）, giving me the 48 to form friendships by breaking down language barriers.Best of all, she understood my 49 and helped me to work on my weaknesses. She was one of the few41．A．joined B．guided C．built D．taught42．A．calm B．understand C．know D．like43．A．valuable B．interesting C．important D．impossible44．A．strict B．angry C．patient D．protective45．A．bravely B．calmly C．coldly D．secretly46．A．as B．require C．judge D．satisfy 47．A．threatened B．forced C．appointed D．allowed48．A．ability B．opportunity C．award D．freedom49．A．strengths B．plans C．aims D．conditions50．A．wise B．nice C．new D．pretty51．A．bad B．good C．disappointed D．nervous52．A．drawing B．buying C．showing D．writing53．A．sought B．failed C．stuck D．hesitated54．A．height B．goal C．sight D．level55．A．punishment B．movement C．encouragement D．puzzlement56．A．give up B．take part in C．put off D．set aside 57．A．communicate B．deal C．compete D．argue58．A．of B．for C．at D．on59．A．hero B．writer C．doctor D．soldier60．A．relation B．potential C．interest D．spirit第Ⅱ卷第二节（共10小题,每小题1.5分,满分15分）阅读下面材料,在空白处填入适当的内容（1个单词）或括号内单词的正确形式.Have you ever had a case 61 a mistake helped you understand an idea or a skill? For me, it was sailing. I took a sailing class when I was in high school. No matter how many times I read the 62 （explain）, I could not understand the difference between a “tack”and a “jibe”—two methods of turning a boat—one much 63第四部分:写作（共两节, 满分35分）第一节:短文改错（共10小题,每小题1分,满分10分）（请按要求改错,否则不得分!）英语课上,老师要求同桌同学相互修改作文,假设以下书信为你同桌所写,请你对其进行修改,文中共有10处错误,每句中最多有两处,错误涉及一个单词的增加、删除或修改.增加:在缺词处加一个漏词符号（∧）,并在此符号下面写出该加的词.删除:把多余的词用斜线（\）划掉.修改:在错的词下划一横线,并在该词下面写出修改后的词.注意:1．每处错误及其修改均仅限一词;2．只允许修改10处,多者（从第11处起）不计分.I spent a lot of time in Yichang, Hubei Province, where I worked as the English teacher. Like any other city, Yichang has its good side or bad side. My first few days there are very hard. The local people often stared at me, that made me feel quite uncomfortable, Later, they realized it was just because these people were curiosity, and I started to see the good side. They were always smiling and ready to offering a hand. They were very much traditional, so wherever I went I saw people neither wearing traditional clothes or doing some traditional things. In the end I got accustomed the simple life there.第二节:书面表达（满分25分）你发现周围很多同学在用手机发短信,玩游戏等,影响了正常学习,请针对这个现象,写一份广播稿,呼吁同学放下手机,多关注身边的人和事.内容包括:1．简述频繁使用手机的危害性;2．提出至少三项合理化的建议（多锻炼……）.注意:1．词数100左右2．开头及结尾已给出,不计入总词数.3．可适当增加细节,以使行文连贯.Dear fellow students,Recently I have found many of us students______________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ ___________________________________________________________________________________________.Let’s take action now!That’s all. Thank you for your listening.。
【地理】宁夏银川一中2017届高三第六次考试.docx
银川一中2017届高三年级第六次月考文科综合试卷笫I卷（选择题，140分）木卷共35个小题，每小题4分，共140分。
在每小题给出的四个选项中，只冇一项是符合题目要求的。
风尘沉积通量人小可以指示地区干燥度的变海拔咪）化。
右图反映了青藏高原隆起与西北地区的风尘沉积通量变化情况。
读图1回答1〜2题。
1.从水循环的过程看，青藏高原隆起影响西北地区同期风尘沉积通量变化的主要环节是A.地面蒸发B.大气降水 C.水汽输送 D.地面径流2.根据图中信息分析判断，青藏简原的隆起对西北地区地理环境的影响是①气候的大陆性变强②植被覆盖率增大③太阳辐射更强④河湖及其水虽增加A.①④B.②③C.①③D.③④卜-表是36° N〜38° N两地的FI平均日照时数（多年平均，单位：小时）统计表，两地海拔均低于100米。
分析回答3〜5题。
月份1月2月3月4月5月6月7月8月9月10月11月12月①地 6.0 6.47.17.47.97.3 5.97.27.37.1 6.3 5.9②地 4.2 4.8 5.97.79.411.211.711.09.2 6.7 5.1 4.13.②地的气候类型最可能是A.温带季风气候B.亚热带季风气候C.地中海气候D.温带海洋性气候4.关于①、②两地的位置判断，正确的是A.①位于大陆东岸B.②位于大陆东岸C.①深屈大陆内部D.①、②均位于大陆西岸5.关于①、②两下列说法正确的是A.①地适宜发展大牧场放牧业B.②地乙地为季风水田农业C.①国农业技术发达，其粮食大量出口国际市场D.②地生产的橄榄汕、匍萄酒品质上乘卜•图2是我国江南某城市及近郊地区范围图。
图3中①②③④是四条线附近地区的夏季6.图中0处最町能是A.文化区C.城市广场7.该城市的城市地域形态可能为A.集中式B.条带式C.放射式D.组团式改革开放以来，屮国汽车工业快速崛起，目前我国己成为全球最大的汽车牛产国。
同时自主品牌汽车开始走出国门，到巴西投资建厂。
2017-2018届宁夏银川一中高三第三次模拟考试理科综合试题及答案
绝密★启用前2017-2018年普通高等学校招生全国统一考试理科综合能力测试(银川一中第三次模拟考试)本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分，其中第Ⅱ卷第33～40题为选考题，其它题为必考题。
考生作答时，将答案答在答题卡上，在本试卷上答题无效。
考试结束后，将本试卷和答题卡一并交回。
注意事项：1．答题前，考生务必先将自己的姓名、准考证号填写在答题卡上，认真核对条形码上的姓名、准考证号，并将条形码粘贴在答题卡的指定位置上。
2．选择题答案使用2B铅笔填涂,如需改动，用橡皮擦干净后，再选涂其他答案的标号；非选择题答案使用0.5毫米的黑色中性（签字）笔或碳素笔书写，字体工整、笔迹清楚。
3．请按照题号在各题的答题区域(黑色线框)内作答超出答题区域书写的答案无效。
4．保持卡面清洁，不折叠，不破损。
5．做选考题时，考生按照题目要求作答，并用2B铅笔在答题卡上把所选题目对应的题目涂黑。
可能用到的相对原子质量：H:1 C:12 N:14 O:16 Al:27 S:32 Fe:56Cr:52Cu:64第Ⅰ卷一、选择题：本题共13小题，每小题6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．用光学显微镜观察装片时，下列操作正确的是A．将物镜对准通光孔B．先用高倍镜，后用低倍镜观察C．观察颜色浅的材料时用凹面镜和大光圈D．使用高倍镜时，用粗准焦螺旋调节2．下列有关生物学实验材料或试剂的叙述，正确的是A．可用紫色洋葱外表皮细胞观察DNA和RNA的分布B．可用菠菜叶肉细胞观察线粒体C．通常用层析液分离和提取绿叶中的色素研究色素的种类和含量D．恩格尔曼利用好氧细菌检测光合作用释放氧气的部位3．下列对相关细胞器的叙述中，正确的是A．吞噬细胞的溶酶体可释放水解酶将细胞摄取的病原体分解B．细胞质基质中的葡萄糖进入线粒体被利用需要经过2层生物膜C．植物细胞有丝分裂末期，细胞中央出现细胞板与高尔基体有关D．植物光合作用有关的色素可分布于叶绿体和液泡中4．以下不属于反馈调节的是A．水体遭受污染后生物大量死亡进一步导致水体污染加重B．机体再次感染SARS病毒时，迅速产生更多的效应淋巴细胞C．草原上蛇与鼠的数量通过捕食和被捕食保持相对稳定D．胎儿分娩时刺激缩宫素的释放，缩宫素浓度升高进一步刺激子宫收缩—O —C —C —BrO CH 3CH 2OH5．右图表示细胞内某些重要物质的合成过程。
宁夏银川一中2017届高三第六次考试英语试卷及答案
宁夏银川一中2017届高三第六次考试英语试卷及答案第Ⅰ卷第一部分:听力（共两节,满分30分）第一节（共5小题:每小题1.5分,满分7.5分）听下面5段对话,每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置.听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题,每段对话仅读一遍. 1．When does the woman’s train leave? ________A．At 10:00 tonight.B．At 5:10 tomorrow morning.C．At 10:00 tomorrow morning.2．What does the woman want to do? ________A．Go out of the room.B．Let the man in.C．Open the window.3．How long has the man been waiting for the woman? ________.A．5 minutes B．15 minutes C．20 minutes4．What may the speakers do this weekend? ________.A．Watch a movie B．Play table tennis C．Climb a mountain5．How will the man probably go downtown? ________.A．By bus B．By taxi C．By subway第二节（共15小题;每小题1.5分,满分22.5分）听下面5段对话或独白,每段对话或独白后有几个小题,从每题所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置.听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间,每段对话或独白读两遍.请听第6段材料,回答第6~7题第二节（共15小题:每小题1.5分,满分22.5分）6．What happened to the man’s bike? ________A．It was hit by a car.B．It was stolen yesterday afternoon.C．It was broken when he was riding it.7．What day is it today probably? ________A．Friday.B．Saturday.C．Sunday.听第7段材料,回答第8~9题8．When does the conversation probably take place? ________A．At night. B．In the afternoon.C．In the morning. 9．What is the woman probably doing? ________A．Listening to the radio.B．Writing some reports.C．Watching TV.听第8段材料,回答第10~12题.10．Where does the man want to go? ________A．Australia.B．Singapore.C．New Zealand. 11．What time will Flight 212take off? ________A．At 12:30 pm.B．At 1:30 pm.C．At 2:00 pm. 12．How long will the whole journey take? ________A．About twenty-three hours B．About twenty-one hours C．About nineteen hours 听第9段材料,回答第13~16题13．Who laugh at the woman? ________A．Her neighbors.B．Her relatives.C．Her colleagues. 14．How has the woman been trying to lose weight? ________A．By eating healthy food more.B．By taking some medicine. C．By eating less. 15．What do we know about the woman? ________A．She prefers hamburgers to hot dogs.B．She wants to find a new job.C．She is really wealthy.16．What advice does the man give the woman? ________A．Going to a gym at regular times.B．Taking the bus one stop fewer.C．Stopping using the elevator.听第10段材料,回答第17~20题.17．Which fact of Sydney does the speaker mention? ________A．It has a population of less than three million.B．It is a place of natural beauty with green parkland.C．It has the world’s biggest deep water harbor.18．What date（s）back to the early nineteenth century? ________A．The Rocks.B．Houses in Paddington.C．The Koala Bear Park.19．How do many people like the Opera House? ________A．It’s one of the oldest buildings in the world.B．It’s one of the largest buildings in the world.C．It’s one of the most outstanding buildings in the world.20．What is the temperature difference between summer and winter in Sydney? ________A．8℃B．12℃C．20℃第二部分:阅读理解（每小题2分,共计40分）第一节:阅读下列短文,从每题所给的A、B、C、D四个选项中,选出最佳选项.ACheck out some fun weekend activities from our friends at Arizona Parenting. Walk in the wild: Walk or run for wildlife at the Phoenix Zoo’s Walk in the Wild 2016. Put on your favorite animal dress and take part in the one mile or 5K, enjoying the sights and sounds of the Zoo. Walk in the Wild includes a morning full of unique activities you won’t find at any other valley walk, including all-day zoo admission and a lakeside after-party.Register online.6-10 am. Phoenix Zoo, 455North Galvin Parkway, Phoenix.602-286-3800.Free Museum Day: It is hosted by Sesame Street and HBO at the Children’s Museum of Phoenix. Kids can participate in activities, enjoy a performance by the Sesame Street Muppets and get to join the Everyday Heroes Club. An act of kindness is all it takes to become a member. Performances and activities will take place at 10:30-11:30 am and 1:30-2:30 pm.9 am.-4 pm. Children’s Museum of Phoenix, 215N.7th Street, Phoeni.602-253-0501.Sunday A’ Fair: Sunday A’ Fair features free outdoor concerts in Scottsdale Civic Center Park by top Arizona musicians, along with an arts-and crafts market, fun activities for children and families, guided tours of the sculptures in the park and free admission to Scottsdale Museum of Contemporary Art（SMoCA）.Guests are invited to bring blankets, lawn chairs or picnic baskets, and enjoy a relaxing afternoon of great entertainment. Delicious foods, snacks, beer, wine and soft drinks are also available for purchase.12-4 pm. Scottsdale Center for the Performing Arts, 7380 E.2nd St, Scottsdale.480-994-ARTS（2787）. 21．What can children do at Walk in the Wild? ________A．Join in the 5-mile walk.B．Enjoy good company of wild animals.C．Wear favorite clothes.D．Attend courses for free.22．What qualification is needed to join the Everyday Heroes Club? ________A．Be active in school activities.B．Present a wonderful performance.C．Do a good deed.D．Be ready to help protect wildlife.23．Where can one go to buy some works of art? ________A．The Phoenix Zoo.B．Scottsdale Civic Center Park.C．Scottsdale Museum of Contemporary Art.D．The Children’s Museum of Phoenix.BJoey was born with club feet（畸形足）.The doctors convinced his parents that with treatment he would be able to walk normally—but would never run very well. The first three years of his life were spent in surgery, casts and braces. By the time he was eight, you wouldn’t know he had a problem when you saw him walk.The children in his neighborhood ran around during play, and Joey would jump right in and run and play, too. His parents never told him he probably wouldn’t be able to run as well as the other children. So he didn’t know.In seventh grade he decided to go out for the cross-country team. Every day he trained with the team. He worked harder than others—perhaps he sensed the abilities that seemed to come naturally to others did not come naturally to him. Although the entire team ran, only the top seven runners would be chosen. His parents didn’t tell him he probably would never make the team. So he didn’t know.He continued to run four to five miles a day, every day—even the day he had a fever of 103 degrees Fahrenheit. His mother was worried, so she went to look for him after school. She found him running all alone. The sweat ran down his face. Yet he looked straight ahead and kept running. His parents never told him he couldn’t run four miles with a high fever. So he didn’t know.Two weeks later, the names of the team runners were posted. Joey was number six on the list. Joey had made the tea. His parents never told him he shouldn’t expect to make the team. They never told him he couldn’t do it. So he didn’t know. He just did it.24．What can we know about Joey as a child? ________A．He couldn’t walk normally at 8.B．He admired other kids for running.C．The born disability made him anxious.D．He received much medical treatment.25．What’s Joey’s mother’s attitude to his training for the team? ________A．Sympathetic and anxious.B．Optimistic and encouraging.C．Disapproving with much self-blame.D．Supportive with little expectation.26．Why didn’t Joey’s parents tell him the truth? ________A．To avoid setting limits to his potential.B．For fear he couldn’t make the team.C．To encourage him to run like other kids.D．In case he would be looked down upon.27．The reason why the author repeats “So he didn’t know.” is ________A．to draw a conclusion.B．to show the author’s emotion.C．to help the story develop.D．to arouse readers’ interest.CSince 1984, Philadelphia has been cleaning up its act. One by one, graffiti（涂鸦）-covered walls are being changed into outdoor art. So far, more than 1 800 murals（壁画）have been painted. Philadelphia now has moremurals than any other American city.The walls that were once ugly with graffiti are now covered with beautiful pictures of historical heroes and modern art, thanks to the Mural Arts Program（MAP）.Its work makes schools and public places attractive, and its citizens are very proud. The program began as part of Philadelphia’s Anti-Graffiti Network. Jane Golden is the MAP’s artistic director. “When people ask me what our program is about,” she says, “I answer them with one word: hope.”Each year, the MAP offers youth art programs and workshops. Some one-time graffiti writers even help paint MAP murals.The MAP’s work, says Golden, is all about developing a sense of community（社区）.When a neighborhood requests a mural, the MAP works with the people there to develop a message. Some messages have been “safe Streets,” “Love and Care,” and “Peace Walk.”The MAP receives up to 50 requests for murals each week. Last year, the workers painted 140 murals. “The making of a mural enters people’s collective memory as an extraordinary, pleasant moment in neighborhood history”says Golden, who began as a muralist in Los Angeles.28．What can be the best title for the text? ________A．Hope, One Wall at a Time.B．MAP, a New Company in Philadelphia.C．Jane, an Excellent Mural Artist.D．Love, from Graffiti Writers to Muralists.29．What is the Mural Arts Program in Philadelphia aimed at? ________A．Helping the young find jobs.B．Fighting against graffiti.C．Protecting the neighborhood.D．Attracting more visitors.30．How does the MAP decide on the message for a mural? ________A．By seeking advice from the city government.B．By having discussions with people in the community.C．By learning from the young graffiti writers.D．By studying the history of the city.31．Which of the following words best describes the work of the MAP? ________A．Difficult.B．Dangerous.C．Successful.D．Experimental.DThere are many weight loss products, plans and programs available in the market. However, if most of these programs were effective, we would see obesity trends reversing, yet we are witnessing more and more people struggling with weight.Experiences of dieters regaining pre-dieting weight within 5 years are common. Therefore, a fitness program that works over a long period of time is something you should be looking for. Before reaching for your wallet or purse, make sure the program is exactly what it claims to be.Professional endorsement（认可）.A good program should not insist on offering pills, injections, powders or similar products that are not endorsed by a medically trained professional. Your choice of programs should have been designed by a medically trained professional.Unrealistic promisesA good program should not make unrealistic promises, such as “To lose 5 pounds in a week, with no exercise!” Therefore, it is advisable to judge whether the promises being made are realistic. The plan should also have a high success rate of weight loss.QualificationA weight loss program should consider the health of the health of the applicants. It should consider their age, medical condition, gender, health background, medications and more, in order to make a plan that meets the needs of every applicant. A good program should include diet and exercise in order to promote permanent and good health. RestrictionA good program should not be overly restrictive（限制）on food allowances. Some programs ask you not to eat foods from the main/nutrient food groups like fruit and vegetables. A successful weight loss plan, for most people, should not involve less than 1 200 calories per day.Cost effectiveA long-term program does not have to cost you lots of money. An effective plan that is reasonably priced can save you a large sum of money that can be spent on other healthy habits. This can in turn improve your lifespan.We provide the best information about weight loss program. For further details please visit the provided links. 32．What does the underlined word “reversing” in Paragraph 1probably mean? ________A．Increasing quickly in a short time.B．Arranging things in the opposite order.C．Going faster in the same direction.D．Changing to the opposite direction.33．The test mainly contributes to ________A．better understanding of good weight loss programs.B．finding the cause of being overweight worldwide.C．selling more reasonably priced weight loss products.D．helping people avoid overweight by controlling diets.34．Which of the following is true according to the text? ________A．Medically trained professionals usually recommend medicines on purpose.B．No weight loss program can stop you regaining weight within five years.C．Weight loss programs always have to charge a large amount of money.D．We should take in at least 1, 200 calories every day to keep healthy.35．The text is probably taken from ________A．a newspaper B．a textbook C．a magazine D．a website第二节（共5小题:每小题2分,满分10分）根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,选项中有两项为多余选项.How to Write a Letter to ParentsAs a teacher, one of the most difficult parts of your job is working with parents. With proper communication, however, you can build bridges between the school and home. 36If you do it properly, this is an excellent way to communicate when you cannot meet with parents face to face.·Put positive communication in the letter, even if you are writing to discuss a problem.37 Even if it is difficult, you must find this positive spin, because it will make the parents more open to what you have to discuss. The general rule is“start with the good, hit them with the bad, then end on a positive note”.·38 Express your concern and desire to help. Do not place it completely on their shoulders, as they may resent （厌恶）this action. Show them through the letter that you want to work with them to find a solution.·Ask for a response. You can ask them to write back, sign a part of the letter or give you a call. 39 Be caring, but make sure they got the communication. Remember, your goal is to work together to help their child succeed.·Consider mailing the letter to the parent, rather than sending it home with the student. Some students will intentionally forget to give the letter to their parents, while others will accidentally or purposely lose the letter. 40 A．Writing a letter to parents is one way to do this.B．If you do not hear from them, you should call them.C．Share the problem with the parents.D．Respect parents and never quarrel with them.E．Whenever you meet with problems, you should keep cool.F．Sending it in the mail makes it more certain that it will be received.G．You can do this by pointing out a gain the child has made recently.第三部分:英语知识运用（共两节,满分45分）第一节:完形填空（共20小题:每小题1.5分,满分30分）阅读下面短文,从短文后各题所给的四个选项（A、B、C和D）中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑.The Power of a TeacherAt the beginning of the second grade, I had just immigrated to Canada and could barely speak any English. I 41 my school’s English learning program, but I felt I was making little progress and was growing increasingly more nervous because nobody could 42 me at school. Making friends, joining clubs, and doing homework were all almost 43 tasks.However, my teacher, Ms. H, was always 44 with me. When I was angry because I could not find the words to ask for help, she would 45 talk to me in a gentle way and instinctively（本能地）46 , based on my body language, what I wanted, Furthermore, she 47 a girl to be my translator and buddy（伙伴）, giving me the 48 to form friendships by breaking down language barriers.Best of all, she understood my 49 and helped me to work on my weaknesses. She was one of the few41．A．joined B．guided C．built D．taught42．A．calm B．understand C．know D．like43．A．valuable B．interesting C．important D．impossible44．A．strict B．angry C．patient D．protective45．A．bravely B．calmly C．coldly D．secretly46．A．as B．require C．judge D．satisfy 47．A．threatened B．forced C．appointed D．allowed48．A．ability B．opportunity C．award D．freedom 49．A．strengths B．plans C．aims D．conditions50．A．wise B．nice C．new D．pretty51．A．bad B．good C．disappointed D．nervous52．A．drawing B．buying C．showing D．writing53．A．sought B．failed C．stuck D．hesitated54．A．height B．goal C．sight D．level55．A．punishment B．movement C．encouragement D．puzzlement56．A．give up B．take part in C．put off D．set aside 57．A．communicate B．deal C．compete D．argue58．A．of B．for C．at D．on59．A．hero B．writer C．doctor D．soldier60．A．relation B．potential C．interest D．spirit第Ⅱ卷第二节（共10小题,每小题1.5分,满分15分）阅读下面材料,在空白处填入适当的内容（1个单词）或括号内单词的正确形式.Have you ever had a case 61 a mistake helped you understand an idea or a skill? For me, it was sailing. I took a sailing class when I was in high school. No matter how many times I read the 62 （explain）, I could not understand the difference between a “tack” and a “jibe”—two methods of turning a boat—one much 63第四部分:写作（共两节, 满分35分）第一节:短文改错（共10小题,每小题1分,满分10分）（请按要求改错,否则不得分!）英语课上,老师要求同桌同学相互修改作文,假设以下书信为你同桌所写,请你对其进行修改,文中共有10处错误,每句中最多有两处,错误涉及一个单词的增加、删除或修改.增加:在缺词处加一个漏词符号（∧）,并在此符号下面写出该加的词.删除:把多余的词用斜线（\）划掉.修改:在错的词下划一横线,并在该词下面写出修改后的词.注意:1．每处错误及其修改均仅限一词;2．只允许修改10处,多者（从第11处起）不计分.I spent a lot of time in Yichang, Hubei Province, where I worked as the English teacher. Like any other city, Yichang has its good side or bad side. My first few days there are very hard. The local people often stared at me, that made me feel quite uncomfortable, Later, they realized it was just because these people were curiosity, and I started to see the good side. They were always smiling and ready to offering a hand. They were very much traditional, so wherever I went I saw people neither wearing traditional clothes or doing some traditional things. In the end I got accustomed the simple life there.第二节:书面表达（满分25分）你发现周围很多同学在用手机发短信,玩游戏等,影响了正常学习,请针对这个现象,写一份广播稿,呼吁同学放下手机,多关注身边的人和事.内容包括:1．简述频繁使用手机的危害性;2．提出至少三项合理化的建议（多锻炼……）.注意:1．词数100左右2．开头及结尾已给出,不计入总词数.3．可适当增加细节,以使行文连贯.Dear fellow students,Recently I have found many of us students______________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ ___________________________________________________________________________________________.Let’s take action now!That’s all. Thank you for your listening.宁夏银川一中2017届高三第六次考试英语试卷答案1~5．BCBCA6~10．ABACC11~15．ABACB16~20．BBACA21~23．BCB24~27．DDAC28~31．ABBC32~35．DADD36~40．AGCBF41~45．ABDCB46~50．CCBAC51~55．BCADC56~60．BABAB61．Where62．Explanation（s）63．safer 64．But65．my66．was hurt 67．clearly 68．had read69．With70．regretting短文改错:I spent a lot of time in Yichang, Hubei Province, where I worked as the （改为an）English teacher. Like any other city, Yichang has its good side or （改为and）bad side. My first few days there are （改为were）very hard. The local people often stared at me, that （改为which）made me feel quite uncomfortable. Later, they （改为I）realized it was just because these people were curiosity （改为curious）, and I started to see the good side. They were always smiling and ready to offering （改为offer）a hand．They were very much （删much）traditional, so wherever I went I saw people neither （改为either）wearing traditional clothes or doing some traditional things. In the end I got accustomed （加to）the simple life there．书面表达:One possible versionDear fellow students,Recently I have found many of us students spend too much time sending short messages or playing games on cell phones, which has negative effects on our studies and also does harm to our eyes. Worse still, we have little time to communicate with our parents and friends. Nor do we have time for physical exercise.What shall we do to improve the situation? All of us should be fully aware of the harmful effects of frequent use of cell phones. To begin with, let’s limit our time of playing with cell phones and start other hobbies. What’s more, we should spend more time playing sports, which is beneficial to us. Besides, communicating with our friends is also a good choice to help us relax and get rid of the addiction. I hope that my suggestions will be of help to you.Let’s put down our cell phones and focus on what is happening around us!Let’s take action now!That’s all．Thank you for your listening．。
宁夏银川一中2017届高三上学期第二次月考理科综合试题 含答案
银川一中2017届高三年级第二次月考理科综合试卷命题人：本试卷分第Ⅰ卷(选择题）和第Ⅱ卷(非选择题)两部分.其中第Ⅱ卷第33～40题为选考题,其它题为必考题。
考生作答时,将答案写在答题卡上，在本试卷上答题无效.第Ⅰ卷（共126分）可能用到的相对原子质量（原子量）:H—1 O-16 C—12 N-14 P—31 Mg-24 Al-27Cl-35.5 Ca-40一、选择题：本题包括13小题。
每小题6分，共78分,每小题只有一个选项符合题意.1．真核细胞具有一些能显著增大膜面积,有利于酶的附着以提高代谢效率的结构．下列不属于此类结构的是A．神经细胞的树突B．线粒体的嵴C．甲状腺细胞的内质网D．叶绿体的基粒2．下列有关实验变量的叙述，正确的是A．探究酸碱度对酶活性影响，酶催化的反应速率是自变量B．探究酵母菌细胞呼吸方式的实验中酒精是无关变量C．在探究CO2浓度对植物光合作用的影响实验中,氧气的释放量是因变量D．观察洋葱鳞叶外表皮质壁分离与复原的实验中,原生质层位置的变化是无关变量3．如图为人体细胞正常分裂时有关物质或结构数量变化曲线，下列分析错误的是A．若曲线表示减数分裂每条染色体上DNA分子数目变化的部分曲线，则n等于1B．若曲线表示减数第二次分裂核DNA变化的部分曲线，则n 等于46C．若曲线表示有丝分裂染色体数目变化的部分曲线，则n等于46D．若曲线表示有丝分裂染色体组数数目变化的部分曲线,则n等于24．下列关于遗传学的相关概念叙述中正确的是A．位于同源染色体上同一位点，控制相同性状的两个基因称为等位基因B．纯合子杂交产生的子一代所表现出的性状就是显性性状C．在不同环境下，基因型相同，表现型不一定相同D。
基因自由组合定律指F1产生4种类型的精子和卵细胞自由组合5．下列关于科学家及其成就的描述中,正确的是A．英国科学家普里斯特利，通过实验发现植物可以吸收CO2，释放氧气B．荷兰科学家用丙酮从人的红细胞中提取脂质，在空气一水界面上铺展成单分子层面积为红细胞表面积的2倍.他们由此推出,细胞膜中的脂质分子必然排列为连续的两层C．施莱登和施旺建立细胞学说揭示了所有生物都是由细胞发育而来D．恩格尔曼用同位素示踪法发现光合作用的场所是叶绿体6．下列关于细胞膜的流动性和选择透过性的叙述,正确的是A．流动性的基础是组成细胞膜的磷脂分子和蛋白质分子都是流动的B．选择透过性的基础是细胞膜上的载体蛋白和磷脂分子具有特异性C．内分泌腺细胞分泌激素体现了细胞膜的选择透过性D．钾离子通过主动运输的形式进入细胞体现了细胞膜的选择透过性7．化学与社会、生活密切相关.对下列现象或事实的解释正确的是A．过氧化钠用于呼吸面具中是因为过氧化钠是强氧化剂能氧化CO2和水B．FeCl3溶液可用于铜质印刷线路板制作是因为FeCl3能与铜单质发生置换反应C．Al2O3作耐火材料是因为氧化铝熔点高D．用热的纯碱溶液洗去油污原理是NaHCO3溶液水解显碱性8．设N A为阿伏加德罗常数,下列有关叙述正确的是A．1 molCu和足量的硫粉加热反应转移的电子数是2N AB．铜粉溶于1L0。
2017届宁夏银川一中高三第二次模拟考试理科综合试题及答案
(银川一中第二次模拟考试)本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分，其中第Ⅱ卷第33～40题为选考题，其它题为必考题。
考生作答时，将答案答在答题卡上，在本试卷上答题无效。
考试结束后，将本试卷和答题卡一并交回。
注意事项：1．答题前，考生务必先将自己的姓名、准考证号填写在答题卡上，认真核对条形码上的姓名、准考证号，并将条形码粘贴在答题卡的指定位置上。
2．选择题答案使用2B铅笔填涂,如需改动，用橡皮擦干净后，再选涂其他答案的标号；非选择题答案使用0.5毫米的黑色中性（签字）笔或碳素笔书写，字体工整、笔迹清楚。
3．请按照题号在各题的答题区域(黑色线框)内作答超出答题区域书写的答案无效。
4．保持卡面清洁，不折叠，不破损。
5．做选考题时，考生按照题目要求作答，并用2B铅笔在答题卡上把所选题目对应的题目涂黑。
可能用到的相对原子质量：H-1 C-12 O-16 N-14 Ca-40Pb-207 Br-80Cu-64第Ⅰ卷一、选择题：本题共13小题，每小题6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．下列关于真核细胞生物膜的叙述,正确的是A. 生物膜的特定功能主要由膜蛋白决定B. 构成膜的脂质主要是磷脂、脂肪和胆固醇C. 光合作用和有氧呼吸产生的ATP均在膜上进行D. 核糖体、内质网、高尔基体的膜都参与蛋白质的合成2. 利用麦芽、葡萄、粮食和酵母菌以及发酵罐等，在控制通气的情况下，可以生产各种酒。
右图是利用酵母菌酿酒过程中酵母菌细胞内糖的分解代谢过程,下列叙述正确的是A.过程①、②和过程①、③总是同时进行的B.②、③过程分别发生在线粒体基质和细胞质基质C.只进行①、②过程时，一般都有酵母菌数量的大量增加D.通过诱变育种一定能获得高产优质的酵母菌菌株3. 下列关于细胞衰老的叙述错误的是A. 细胞衰老表现为形态、结构和功能发生改变理科综合试卷第1页(共20页)2017年普通高等学校招生全国统一考试理科综合能力测试B. 衰老细胞内染色质固缩会影响DNA复制和转录C. 衰老细胞内酪氨酸酶活性降低导致细胞内色素积累D. 高等植物的细胞分裂素可延缓植物细胞的衰老进程4．蜜蜂种群中雌蜂是二倍体，雄蜂是单倍体。
高三第六次考试生物试卷
宁夏银川一中2017届高三第六次考试生物试卷第Ⅰ卷(共126分)可能用到的相对原子质量（原子量）：H 1C 12N 14O 16S 32Cu 64——————1．下列有关T 细胞的说法，正确的是（ ）A ．T 细胞凋亡过程中有新蛋白质合成，体现了基因的选择性表达B ．T 细胞中直接合成、加工、运输淋巴因子的细胞器都含有RNAC ．HIV 识别并结合T 细胞表面受体体现了细胞间信息交流的功能D ．AIDS 患者易发恶性肿瘤的直接原因是HIV 使T 细胞原癌基因突变2．下列关于生长素的叙述，正确的是（ ）A ．生长素在植物体各器官组织中的运输为极性运输B ．用适宜浓度的生长素类似物处理二倍体西瓜的雌蕊，可得到多倍体西瓜C ．植物向光性产生的原因是因为生长素在茎的背光侧含量多于向光侧D ．在发育中的种子中，络氨酸经过一系列反应转变为生长素3．下列关于生物学实验的叙述正确的是（ ）A ．“细胞大小与物质运输的关系”模拟实验中，琼脂块表面积和体积之比是自变量，氢氧化钠扩散速率是因变量B ．在观察叶绿体形态和分布的实验中，使用生理盐水制作黑藻临时装片C ．观察细胞减数分裂实验可选用盛花期的豌豆花药为实验材料D ．洋葱幼根经低温诱导后制成装片，可用于观察细胞染色体数目变异4．小鼠睾丸中存在间质细胞和实质细胞，实质细胞就是精原细胞，间质细胞是为实质细胞提供营养物质和相关激素的细胞。
科学家用显微镜观察从睾丸中所取的部分组织。
下列有关说法正确的是（ ） A ．实质细胞和间质细胞因遗传信息不同而功能不同B ．显微镜下能看到染色体的细胞最多含两条性染色体C ．睾丸中发生变异类型只有基因重组D ．实质细胞与间质细胞之间存在信息交流5．用新鲜、成熟的菠菜叶片作实验材料，以下叙述正确的是（ ）A ．较容易制备纯的细胞膜B ．可用于观察染色体的形态C ．可用于观察光合作用产物D ．可用于观察线粒体的结构 6．在生物群体中等位基因的数量可以在两个以上，甚至多到几十个，如123A A A 、、……这就构成了一组复等位基因，其决定同一性状的不同表现。
宁夏银川一中2017届高三第六次考试英语试卷
银川一中2017届高三年级第六次月考英语试卷（总分：150分；考试时间：120分钟）本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。
考生作答时，将答案答在答题卡上，在本试卷上答题无效。
考试结束后，将本试卷和答题卡一并交回。
注意事项：1．答题前，考生务必先将自己的姓名、准考证号填写在答题卡上，认真核对条形码上的姓名、准考证号，并将条形码粘贴在答题卡的指定位置上。
2．选择题答案使用2B铅笔填涂,如需改动，用橡皮擦干净后，再选涂其他答案的标号；非选择题答案使用0.5毫米的黑色中性（签字）笔或碳素笔书写，字体工整、笔迹清楚。
3．请按照题号在各题的答题区域(黑色线框)内作答，超出答题区域书写的答案无效。
4．保持卡面清洁，不折叠，不破损。
第Ⅰ卷第一部分：听力（共两节，满分30分）第一节 (共5小题：每小题1.5分，满分7.5分)听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1．When does the woman’s train leave?A．At 10:00 tonight．B．At 5:10 tomorrow morning．C．At 10:00 tomorrow morning ．2．What does the woman want to do?A．Go out of the room．B．Let the man in．C．Open the window．3．How long has the man been waiting for the woman?A．5 minutes B． 15 minutes C． 20 minutes4．What may the speakers do this weekend?A．Watch a movie B．Play table tennis C．Climb a mountain5．How will the man probably go downtown ?A．By bus B．By taxi C．By subway第二节（共15小题；每小题1.5分，满分22.5分）听下面5段对话或独白。
【宁夏银川一中】2017届高三第六次考试数学(文科)试卷
银川一中2017届高三年级第六月考数学（文科）试卷第Ⅰ卷（选择题 共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．设集合2{|4}M x x =≤，2{|log 1}M x x =≤，则M N I =（ ）A ．[2,2]-B ．{2}C ．(0,2]D ．(,2]-∞2．在复平面内，复数2i 12i z =-+的共轭复数的虚部为（ ） A ．25- B ．25 C ．2i 5 D ．2i 5- 3．“p q ∨是假命题”是“p ⌝为真命题”的（ ） A ．充分而不必要条件B ．必要而不充分条件C ．充要条件D ．既不充分也不必要条件4．设tan ,tan αβ是方程2320x x +-=的两个根，则tan()αβ+的值为（ ） A ．3- B ．1-C ．1D ．3 5．各项不为零的等差数列{}n a 中，23711220a a a -+=，数列{}n b 是等比数列且77b a =，则68b b =（ ） A ．2 B ．4 C ．8 D ．166．如图，虚线部分是平面直角坐标系四个象限的角平分线，实线部分是函数()y f x =的部分图像，则()f x 可能是（ ）A ．2sin x xB ．sin x xC ．2cos x xD ．cos x x7．《九章算术》中，将底面是直角三角形的直三棱柱称之为“堑堵”，已知某“堑堵”的三视图如图所示，俯视图中虚线平分矩形的面积，则该“堑堵”的侧面积为（ ）16．大衍数列，来源于中国古代著作《乾坤谱》中对易传“大衍之数五十”的推论．其前10项为：0、2、4．8、12、18、24、32、40、50．通项公式：221,2,2nnnann⎧-⎪⎪=⎨⎪⎪⎩为奇数为偶数如果把这个数列{}na排成右侧形状，并记(,)A m n表示第m行中从左向右第n个数，则(10,4)A的值为____________．三、解答题：本大题共6小题，共70分．解答应写出文字说明，证明过程或演算步骤．17．（本小题满分12分）已知顶点在单位圆上的△ABC中，角,,A B C所对的边分别为,,a b c且222b c a bc+=+．（1）求角A的大小；（2）若224b c+=，求ABC∆的面积．18．（本小题满分12分）已知{}na为等差数列，且138a a+=，2412a a+=（1）求数列{}na的通项公式；（2）记{}na的前n项和为nS，若12,,k ka a S+成等比数列，求正整数k的值．19．（本小题满分12分）如图，在底面为梯形的四棱锥S ABCD-中，已知//AD BC，60ASC︒∠=，2AD DC==，2SA SC SD===（1）求证：AC SD⊥；（2）求三棱锥B SAD-的体积．20.（本小题满分12分）已知椭圆C的中心在原点O，焦点在x轴上，离心率为12，椭圆C上的点到右焦点的最大距离为3．（1）求椭圆C的标准方程．（2）斜率存在的直线l与椭圆C交于A、B两点，并且满足以AB为直径的圆过原点，求直线在y轴上截距的取值范围．248121824324050。
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银川一中2017届高三年级第六次月考理科综合试卷本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。
其中第Ⅱ卷第33～38题为选考题，其它题为必考题。
考生作答时，将答案写在答题卡上，在本试卷上答题无效。
第Ⅰ卷(共126分)可能用到的相对原子质量（原子量）：H—1 C—12 N—14 O—16 S—32 Cu—641．下列有关T细胞的说法，正确的是A．T细胞凋亡过程中有新蛋白质合成，体现了基因的选择性表达B．T细胞中直接合成、加工、运输淋巴因子的细胞器都含有RNAC．HIV识别并结合T细胞表面受体体现了细胞间信息交流的功能D．AIDS患者易发恶性肿瘤的直接原因是HIV使T细胞原癌基因突变2．下列关于生长素的叙述，正确．．的是A．生长素在植物体各器官组织中的运输为极性运输B．用适宜浓度的生长素类似物处理二倍体西瓜的雌蕊，可得到多倍体西瓜C．植物向光性产生的原因是因为生长素在茎的背光侧含量多于向光侧D．在发育中的种子中，络氨酸经过一系列反应转变为生长素3．下列关于生物学实验的叙述正确的是A．“细胞大小与物质运输的关系”模拟实验中，琼脂块表面积和体积之比是自变量，氢氧化钠扩散速率是因变量B．在观察叶绿体形态和分布的实验中，使用生理盐水制作黑藻临时装片C．观察细胞减数分裂实验可选用盛花期的豌豆花药为实验材料D．洋葱幼根经低温诱导后制成装片，可用于观察细胞染色体数目变异4．小鼠睾丸中存在间质细胞和实质细胞，实质细胞就是精原细胞，间质细胞是为实质细胞提供营养物质和相关激素的细胞。
科学家用显微镜观察从睾丸中所取的部分组织。
下列有关说法正确的是A．实质细胞和间质细胞因遗传信息不同而功能不同B．显微镜下能看到染色体的细胞最多含两条性染色体C．睾丸中发生变异类型只有基因重组D．实质细胞与间质细胞之间存在信息交流5．用新鲜、成熟的菠菜叶片作实验材料，以下叙述正确的是A．较容易制备纯的细胞膜B．可用于观察染色体的形态C．可用于观察光合作用产物D．可用于观察线粒体的结构6．在生物群体中等位基因的数量可以在两个以上，甚至多到几十个，如A1、A2、A3……这就构成了一组复等位基因，其决定同一性状的不同表现。
如家兔毛色有灰色、白色、黑色等，相关基因就是一组复等位基因。
以下相关叙述不正确的是A ．复等位基因的产生体现了基因突变的不定向性B ．复等位基因的遗传仍遵循孟德尔自由组合定律C ．复等位基因的产生可以发生在家兔发育的任何时期D ．新的复等位基因可使家兔种群基因频率发生变化7．下列关于危险化学品标志叙述错误的是8．下列各组中的反应，属于同一反应类型的是A ．乙烷和氯气制氯乙烷；乙烯与氯化氢反应制氯乙烷B ．乙醇和乙酸制乙酸乙酯；苯的硝化反应C ．葡萄糖与新制氢氧化铜共热；蔗糖与稀硫酸共热D ．乙醇和氧气制乙醛；苯和氢气制环己烷9．锂空气电池充放电基本原理如下图所示，下列说法不正确的是A ．充电时，锂离子向阴极移动B ．充电时阴极电极反应式为Li ＋＋e －===LiC ．放电时正极电极反应式为O 2＋4e －＋2H 2O===4OH －D ．负极区的有机电解液可以换成水性电解液10．用式量是71的烃基取代乙苯苯环上的一个氢原子，能得到的有机物共有（不含立体异构）A. 8种B. 16种C. 24种D. 36种 11．下列有关表述错误的是A ．利用酸性高锰酸钾测居室中甲醛含量反应为：4MnO 4- + 5HCHO +12H += 4Mn 2++ 5CO 2↑ +11H 2O A ．腐蚀品标志， 避免接触B ．危险，有剧毒品注意安全 C. 油罐车前后左右 粘贴的警告标志 D. 医院B 超室门口 粘贴的警告标志B．用CaSO4治理盐碱地：CaSO4(s) + Na2CO3(aq)CaCO3(s) + Na2SO4(aq)C．25℃时，0.2mol·L-1氢氟酸中，加入NaOH固体 (忽略加入固体引起的溶液体积变化)，恰好中和时，c(HF)+c(Na+)+c(H+)-c(OH-)=0.1mol·L-1D．一定温度下，在密闭容器中反应2NO2（g）= N2O4(g)达到平衡，增加NO2的浓度达新的平衡时，NO2转化率提高。
12．从下列事实所得出的相应结论正确的为实验事实结论①Cl2的水溶液可以导电Cl2是电解质②将CO2通入到Na2SiO3溶液中产生白色浑浊酸性：H2CO3>H2SiO3③SO2通入KMnO4溶液中，溶液褪色SO2具有漂白性④常温下白磷可自燃而氮气须在放电时才与氧气反应非金属性：P>N⑤通入CO2，溶液变浑浊。
继续通CO2至过量，浑浊消失。
该溶液为CaCl2溶液A．②B．②⑤C．②③⑤D．②④⑤13．将n mol Cu2S 与足量的稀硝酸反应，生成硝酸铜、硫酸、一氧化氮和水，则参加反应的硝酸中被还原的硝酸的物质的量是A．4n mol B．10n mol C．10n/3 mol D．2n/3 mol二、选择题：本大题共8小题，每小题6分。
在每小题给出的四个选项中，第14——18题只有一项是符合题目要求，第19—21题有多项符合题目要求。
全部选对的得6分，选对但不全的得3分。
有选错的得0分。
14．关于物理学发展，下列表述正确的有A．伽利略通过“理想斜面实验”得出“力是维持物体运动的原因”B．奥斯特发现了电流的磁效应，总结出了电磁感应定律C．库仑最先提出了电荷周围存在电场的观点，并通过研究电荷间的相互作用总结出库仑定律D．牛顿发现了万有引力，卡文迪许测出了万有引力常量15．如图所示，钢铁构件A、B叠放在卡车的水平底板上，卡车底板和B间动摩擦因数为μ1，A、B 间动摩擦因数为μ2，卡车刹车的最大加速度为a，μ2g＞a＞μ1g，可以认为最大静摩擦力与滑动摩擦力大小相等。
卡车沿平直公路行驶途中遇到紧急情况时，要求其刹车后在s0距离内能安全停下，则卡车行驶的速度不能超过A．2as0B．2μ1gs0C．2μ2gs0 D．（μ1＋μ2）gs016．我国计划在2017年发射“嫦娥四号”，它是嫦娥探月工程计划中嫦娥系列的第四颗人造探月卫星，主要任务是更深层次、更加全面的科学探测月球地貌、资源等方面的信息，完善月球档案资料。
已知月球的半径为R ，月球表面的重力加速度为g ，引力常量为G ，嫦娥四号离月球中心的距离为r ，绕月周期为T 。
根据以上信息可求出A ．月球的平均密度为323π3r GT RB ．“嫦娥四号”绕月运行的速度为Rg r 2 C ．月球的平均密度2π3GT D ． “嫦娥四号”绕月运行的速度为T πr 2 17．如图甲所示为某一小灯泡的U －I 图线，现将两个这样的小灯泡并联后再与一个4 Ω的定值电阻R 串联，接在内阻为1 Ω、电动势为3V 的电源两端，如图乙所示，则A ．通过每盏小灯泡的电流强度约为0.2 A ，此时每盏小灯泡的电功率约为0.6 WB ．通过每盏小灯泡的电流强度约为0.3 A ，此时每盏小灯泡的电功率约为0.6 WC ．通过每盏小灯泡的电流强度约为0.2 A ，此时每盏小灯泡的电功率约为0.2 WD ．通过每盏小灯泡的电流强度约为0.3 A ，此时每盏小灯泡的电功率约为0.4 W18．如图所示，a 、b 是一对平行金属板，分别接到直流电源两极上，右边有一挡板，正中间开有一小孔d ，在较大空间范围内存在着匀强磁场，磁感应强度大小为B ，方向垂直纸面向里，在a 、b 两板间还存在着匀强电场E.从两板左侧中点c 处射入一束离子(不计重力)，这些离子都沿直线运动到右侧，从d 孔射出后分为如图三束，则下列判断正确的是A ．若将这三束离子改为相反电性而其他条件不变的离子则仍能从d 孔射出B ．这三束离子的比荷一定相同C ．这三束离子的速度一定不相同n1n2u/VS用电器D t/s0.022202-2202A OD．a、b两板间的匀强电场方向一定由b指向a19．如图所示，光滑绝缘的水平面上M、N两点各放一带电荷量分别为＋q和＋2q的完全相同的刚性金属球A和B，给A和B以大小相等的初动能E0(此时初动量的大小均为p0)，使其相向运动一段距离后发生弹性正碰，碰后返回M、N两点的动能分别为E1和E2，动量的大小分别为p1和p2，则A．E1＝E2＝E0，p1＝p2＝p0B．E1＝E2>E0，p1＝p2>p0C．碰撞发生在MN连线的中点D．碰撞发生在MN连线中点的左侧20．如图所示，一质量为m的滑块以初速度v0从固定于地面的斜面底端A点开始冲上斜面，到达某一高度后又返回A点，斜面与滑块之间有摩擦．下列各项分别表示它在斜面上运动的速度v、加速度a、势能E p和机械能E随时间的变化图象，可能正确的是21．如图所示的电路中，理想变压器原线圈接图示正弦交变电流，闭合S后，额定电压为20V的用电器正常工作，理想交流电表A的示数为0.1A。
已知图中元件D其有正向电流导通，反向电流截止的作用，下列判断正确的是A．交变电流的频率为50Hz B．变压器原副线圈匝数比为1:211C．用电器的额定功率为22WD．在用电器电阻不变的情况下断开开关S，用电器功率将变为原来的一半第Ⅱ卷三、非选择题：包括必考题和选考题两部分。
第22—32题为必考题，每个试题考生都做答；第33题—39题为选考题，考生根据要求作答。
B(一)必考题(共129分)22．(6分)将一块量程为1mA 的电流表，与一节电动势为1.5V 的干电池，一个满足条件的滑动变阻器串联改装成一个倍率为×1K 的欧姆表，则这块表的中值电阻是 Ω，电流表表盘读数为0.4mA 的地方，应该标示数值为 Ω阻值，用这块欧姆表去测量一块电压表的内阻，红表笔应该接电压表的 （“正”或“负”）接线柱.23．(9分)用如图所示装置来验证动量守恒定律，质量为A m 的钢球A用细线悬挂于O 点，质量为B m 的钢球B 放在离地面高度为H的小支柱N 上，O 点到A 球球心的距离为L ，使悬线伸直并与竖直方向夹角为β，释放后A 球摆到最低点时恰与B 球对心碰撞，碰撞后，A 球把原来静止于竖直方向的轻质指示针OC 推到与竖直方向夹角为α处，B 球落到地面上，地面上铺有一张盖有复写纸的白纸，保持α角度不变，多次重复上述实验，白纸上记录到多个B 球的落点，进而测得B 球的水平位移S ，当地的重力加速度为g（1）A 、B 两个钢球的碰撞近似看成弹性碰撞，则A 球质量______B 球质量（填入“大于”、“小于”或“等于”）。
为了对白纸上打下的多个B 球的落地点进行数据处理，进而确定落点的平均位置，需要用到的器材是_________。
（2）用题中所给的字母表示，碰撞前A 球的动量A P =__________，碰撞后A 球的动量A P '=_______，碰撞后B 球的动量B P =__________。