人教版七年级下册数学试题名师优秀教案(完整版)资料.doc

人教版七年级下册数学试题名师优秀教案（完整版）资料(可以直接使用，可编辑 优秀版资料，欢迎下载）人教版七年级下册数学试题一、选择题(每小题3分，满分24分) 1、如图，下列推理正确的是( ) A( ? ?1,?2，? AD?BC B( ? ?3,?4，? AB?CD C( ? ?3,?5，? AB?DC 图1 D( ? ?3,?5，? AD?BC 2、如果两条直线被第三条直线所截，那么必定有 ( ) A、内错角相等 B、同位角相等 C、同旁内角互补 D、以上都不对 3、如果点P(5，y)在第四象限，则y的取值范围是( ) A(y,0 B(y,0 C(y?0 D(y?0 4、已知三角形的两边长分别为4cm和9cm，则下列长度的四条线段中能作为第三边的是( ) A(13cm B(6cm C(5cm D(4cm 5、已知a<b,则下列式子正确的是( ) ba A.a+5>b+5 B.3a>3b; C.-5a>-5b D.> 336、某多边形的外角和等于内角和的一半，那么这个多边形是( ) A、五边形 B、六边形 C、七边形 D、八边形 7、下列图形中,不能镶嵌成平面图案的是( ) A. 正三角形 B. 正四边形 C. 正五边形 D. 正六边形 8、某商场对顾客实行如下优惠方式:?一次性购买金额不超过1万元，不予优惠; ?一次性购买金额超过1万元，超过部分9折优惠，某人第一次在该商场付款8000元，第二次又在该商场付款19000元，如果他一次性购买的话可以节省( )。 A、600元 B、800元 C、1000元 D、2700元 二、填空题(每小题3分，满分21分) 9、“如果n是整数，那么2n是偶数”其中题设是 ， 结论是 ，这是 命题(填真或假)( 0010、如图2，?,155,?,35,则?, 度。 11、如图3，直线AB、CD相交于点O，?1,?2( 则?1的对顶角是_ ，?4的邻补角是_(?2的补角是_( 图2图3 12、如图，直线a?b,点B在直线b上， AC1a且AB?BC,?1=55?，则?2的度数为_。 2bB 1 13、等腰三角形一边等于4，另一边等于8，则周长是 ; x，9x，114、若代数式的值不小于代数式的值，则的取值范围是 。 x，1,12315、2021年奥运火炬将在我省传递(传递路线为:昆明丽江香格里拉)，某校学生小明在我省地图上设定的0临沧市位置点的坐标为(1，)，火炬传递起点昆明市位置点的坐标为(1，1)(如图，请帮助小明确定出火炬传递终点香格里拉位置点的坐标为_( 三、解答题 16、解方程组:(每小题5分，共10分) 3(x,1),y，5y,1,x,(1) (2) ,2x，3y,55(y,1),3(x，5),17、解不等式(或不等式组)并在数轴上表示解集:(每小题5分，共10分) 513(1)xx,，,(1) (2) 解不等式组 2(x，5),3(x,5),13xx,17,22,18、(8分)完成下列推理，并填写理由 如图4，? ?ACE,?D(已知)， ? ? ( )( ? ?ACE,?FEC(已知)， ? ? ( )( ? ?AEC,?BOC(已知)， 2 ? ? ( )( 图4 ? ?BFD，?FOC,180?(已知)， ? ? ( )( 19、(8分)已知，如图5，?1+?2=180?，?3=108?，则?4的度数是多少, cd 31a 4b 2图5 AB20、(9分)如图6，AB?CD，?BAE=?DCE=45?，求?E E CD 图4 图6 21、(8分) 如图，这是某市部分简图，请建立适当的平面直角坐标系，并分别写出各地的坐标。 体育场市场宾馆文化宫火车站医院超市22. (10分) 在某中学开展的“我为四川地震灾区献爱心”捐书活动中，校团委为了了解七年级同学的捐书情况，用简单的随机抽样方法从七年级的10个班中抽取50名同学，对这50名同学所捐的书进行分类统计后，绘制了如下统计表: 捐书情况统计表 种类 文学类 科普类 学辅类 体育类 其它 合计 3 册数 120 180 140 80 40 560 (1)在右图中，补全这50名同学捐书情况的频数分布直方图; 捐书情况频数分布直方图 册数 200 180 160140 120 100 80 60 40 20 0 文 科学体其 种类 学 普辅 育 类 它 类 类 类(第22题图) (2)若七年级共有475名同学，请你估计七年级同学的捐书总册数及学辅类书的册数( 23、(12分) 开学初，小芳和小亮去学校商店购买学习用品，小芳用18元钱买了1支钢笔和3本笔记本;小亮用31元买了同样的钢笔2支和笔记本5本. (1)求每支钢笔和每本笔记本的价格; (2)校运会后，班主任拿出200元学校奖励基金交给班长，购买上述价格的钢笔和笔记本共48件作为奖品，奖给校运会中表现突出的同学，要求笔记本数不少于钢笔数，共有多少种购买方案,请你一一写出. 4 一、选择题 1.A 2.D 3.A 4.B 5.C 6.B 7.C 8.B 二、填空题 9. n是整数;2n是偶数;真 10.120 11. ?3;?1或?3;?BOE 12.35? 13.20 14.x?-37 15.(-1，4) 三、解答题 x,2x,5,16.(1) (2) y,3y,7二特殊角的三角函数值17.(1)x,25 (2)2,x?4 18(ABC BCD 角平分线的定义 两直线平行，内错角相等 内错角相等，两直线平行 19.?=72? （3）当>0时，设抛物线与x轴的两个交点为A、B，则这两个点之间的距离：20.?E=90? 圆内接四边形的性质: 圆内接四边形的对角互补;21. 略 22.解:(1)如下图( (2)50名同学捐书平均数为， 5605011.2,， ？，,47511.25320140， 53202130，,560即可估计九年级同学的捐书为5320册，学辅类书1330册( 23(解:(1)设每支钢笔x元，每本笔记本y元 一年级有学生 人，通过师生一学期的共同努力，绝大部分部分上课能够专心听讲，积极思考并回答老师提出的问题，下课能够按要求完成作业，具有一定基础的学习习惯，但是也有一部分学生的学习习惯较差，学生上课纪律松懈，精力不集中，思想经常开小差，喜欢随意讲话，作业不能及时完成，经常拖拉作业，以致学习成绩较差，还需要在新学期里多和家长取得联系，共同做好这部分学生行为习惯的培养工作。x，3y,18, 依题意得: ,2x，5y,31,x,3, 解得: ,y,5,2、100以内的进位加法和退位减法。答:每支钢笔3元，每本笔记本5元 周 次日 期教 学 内 容(2)设买a支钢笔，则买笔记本(48,a)本 =0 <=> 抛物线与x轴有1个交点；3a，5(48,a),200,依题意得: ,48,a,a,解得: 20,a,24所以，一共有,种方案( 5、多一份关心、帮助，努力发现他们的闪光点，多鼓励、表扬他们，使其体验成功、努力学习。即购买钢笔、笔记本的数量分别为: 4.垂径定理：垂直于弦的直径平分这条弦，并且平分弦所对的两条弧。20，28; 21，27; 22，26; 23，25; 24，24( 5 =0 <=> 抛物线与x轴有1个交点；新课标人教版初中七年级地理下册期末试题附答案第I卷(选择题 共70分) 一、选择题(共70分) (一)单项选择题:本大题共20小题，每小题2分，共40分。在每小题给出的四个选项中，只有一项是符合题目要求的。 读某日西半球光照示意图,图1,AB为晨昏线回答1，3题: 1(若该日A点正午太阳高度为45?，则该地纬度为 A(66.5?N B(70?N C(67.5?N D(65?N 2(下列四个城市中，与其它三个城市日期不同的是 A(惠灵顿 B(伦敦 C(北京 D(纽约 3(在未来半个月内，下列现象不可能出现的是 A(太阳直射点先北移然后南移 B(悉尼夜长和昼长之差达一年中最大值 图1 C(雅加达正午太阳高度先变大再变小 D(北极圈上出现极昼现象 读经纬网图,图2,完成4，6题: 4(p2与p3 两地的判断 A(p2 在东半球，p3在西半球 B(p2 与p3日期相差一天 C(p2与p3两地在雨季吹的风向相同 D(p2的昼长与p3的夜长相等 图2 5(p1与p2 两地的判断 A(p1 与p2附近产生气候差异的主要原因是大气环流 B(p1地区宜发展技术指向型工业，p2附近地区宜发展廉价劳动力指向型工业 C(p1与p2附近地区农业景观相同 D(p1与p2附近海区洋流成因相同，性质相同 6(有一艘船于2003年12月24日上午17点钟(p1所在地区时)由p1附近港口出发，于2004年1月25日17点(p4所在地区时)到达p4附近海域，下列说法正确的是 A(沿途海区盐度值先变高再变低 B(船上旗杆正午的影长先变长，然后再变短 C(船在航行途中能接受到太阳的直射 D(船的航行时间是整32天 7(巴黎市区高级住宅区集中在城市西部，低级住宅区集中在城市东部，造成这种现象的主要原因是 A(地形 B(塞纳河的流向 C(风向 D(地质基础 8(读图3，从山峰向下望，将不能看见的点是 A(A点 B(B点 C(C点 adapt to the concept, mode and method of work, establish" economic underdeveloped, responsibility in my "idea, inappropriate spectator. Council formulated the" 50 "measures, the city at all levels of public security organs or folding not withhold had caught carry out fulfil, especially the windows service units to earnestly honor their commitment. To do it right away, the speed and efficiency of practical action for the broad masses of the people more satisfied. Inspector detachment to jointly with the police department, "50" measures for the implementation of the carry out a full range of supervision and inspection. To improve the quality of police enforcement and business skills, further enhance the level of law enforcement. To adhere to the rapid and reliable alarming, trying to make 110 Alarming and fast 1 minute, with good working attitude and norms of law enforcement behavior to the satisfaction of the masses. Is a systems engineering, needs the joint efforts of all the police, improve the masses of 110 alarming, investigating and handling cases of satisfaction. To spare no efforts to carry out large reciprocal work, this is we improve group Public security and satisfaction of the "golden key". Since the May 2021, the Municipal Public Security Bureau by means of information for all with the public security organs dealing with, masses visits, found in a timely manner, to rectify the problem, to realize the people a sense of security and satisfaction of successive lifting. The visit must be taken seriously, a bit can not be sloppy, to the problem of finding promptly resolved, is strictly prohibited for fraud on the surface of the achievements. To return to each individual, trying to make the people from the bottom of 图3 D(D点 读图4回答9，11题。 9(就纬度而言，图中臭氧总量的极小值出现在 A(赤道附近上空 B(北半球中高纬度上空 C(南极上空 D(北冰洋上空 10(就季节而言，图中南北半球臭氧含量的极大值均出现在 A(夏季 B(冬季 C(春季 D(秋季 11(臭氧含量的减少，对地球的影响主要是 A(吸收紫外线能力减弱，导致全球气温下降 B(危害人体健康以及农林牧渔业生产 C(导致海面上升，危害沿海地区 D(扰乱电离层，使无线电短波通讯中断 图5中有四条山脉分析判断12，15题 图4 图5 12(属于长江流域和其它流域的分界的 A.? B.? C.? D.? 13(山脉两侧体现由沿海向内陆的地域分异的是 A.? B.? C.? D.? 14(垂直自然带数目的最多的是 A.? B.? C.? D.? 15(山脉附近地区需要加强水土保持的是 A.? B.? C.? D. ? 读图6完成16，18题。 16(与?自然带更替相似的是 A(? B(? C(? D(? 17(气候形成过程中，受非地带性因素影响较大的是 A(?、?两地 B(?、?两地 C(?、?两地 D(?、?两地 18(?、?、?三地气候 图6 A(类型相同，成因不同 B(类型不同，成因不同 C(类型不同，成因相同 D(类型相同，成因相同 adapt to the concept, mode and method of work, establish" economic underdeveloped, responsibility in my "idea, inappropriate spectator. Council formulated the" 50 "measures, the city at all levels of public security organs or folding not withhold had caught carry out fulfil, especially the windows service units to earnestly honor their commitment. To do it right away, the speed and efficiency of practical action for the broad masses of the people more satisfied. Inspector detachment to jointly with the police department, "50" measures for the implementation of the carry out a full range of supervision and inspection. To improve the quality of police enforcement and business skills, further enhance the level of law enforcement. To adhere to the rapid and reliable alarming, trying to make 110 Alarming and fast 1 minute, with good working attitude and norms of law enforcement behavior to the satisfaction of the masses. Is a systems engineering, needs the joint efforts of all the police, improve the masses of 110 alarming, investigating and handling cases of satisfaction. To spare no efforts to carry out large reciprocal work, this is we improve group Public security and satisfaction of the "golden key". Since the May 2021, the Municipal Public Security Bureau by means of information for all with the public security organs dealing with, masses visits, found in a timely manner, to rectify the problem, to realize the people a sense of security and satisfaction of successive lifting. The visit must be taken seriously, a bit can not be sloppy, to the problem of finding promptly resolved, is strictly prohibited for fraud on the surface of the achievements. To return to each individual, trying to make the people from the bottom of 19(下列各组水域盐度值差别不大的是 A(塔里木盆地的湖泊、长江中下游地区的湖泊 B(非洲大陆与阿拉伯半岛间的海域、非洲大陆与欧洲大陆间的海域 C(在开罗附近入海的河流、在上海附近入海的河流 D(密西西比河河口附近海域与外海 中国的资源型城市正在经历着痛苦的转型。回答20，22题: 20(下列城市属于资源型城市的是 A(石家庄 B(西安 C(阜新 D(拉萨 (二)双项选择题:本大题共10小题，每小题3分，共30分。在每小题给出的四个选项中，有两项是符合题目要求的。每小题全选对者得3分，只选一项且选对者得1分，其余情况均不得分。 21(资源型城市在发展过程中出现的主要环境问题是 A(绿地面积小 B(污染严重 C(土地资源遭到破坏 D(浪费矿产资源 22(“矿竭城不衰”，煤城阜新将转型目标锁定“现代农业”，其主要依据是 A(矿区有大量废地，人均土地资源丰富 B(交通条件优越 C(现代农业市场前景广阔 D(国家政策的支持 23(图7表示钢铁工业区位选择的历史发展，可以看出引起钢铁工业区位选择变化的两个主要因素 图7 A(冶炼技术的发展 B(钢材运费上涨C(交通运输业的发展 D(煤炭、铁矿石开采量增大 24(下表为部分地区工业用水比较表，该表反应出 水价 有效利用(元/吨) 率(%) 广州地区 0.2 33 京津地区 1.5 52 日本东京 14 87 A(东京的水资源最紧缺 B(我国水资源污染程度低于日本 C(低廉的水价是造成水资源浪费的重要原因 D(日本的节水技术与意识强于我国 25(7月份受副热带高气压控制的地区 A(最冷月气温在0?以上 B( 农业生产以水稻种植业为主 C(植被可能是森林、草原、荒漠 D(不能接受太阳直射 adapt to the concept, mode and method of work, establish" economic underdeveloped, responsibility in my "idea, inappropriate spectator. Council formulated the" 50 "measures, the city at all levels of public security organs or folding not withhold had caught carry out fulfil, especially the windows service units to earnestly honor their commitment. To do it right away, the speed and efficiency of practical action for the broad masses of the people more satisfied. Inspector detachment to jointly with the police department, "50" measures for the implementation of the carry out a full range of supervision and inspection. To improve the quality of police enforcement and business skills, further enhance the level of law enforcement. To adhere to the rapid and reliable alarming, trying to make 110 Alarming and fast 1 minute, with good working attitude and norms of law enforcement behavior to the satisfaction of the masses. Is a systems engineering, needs the joint efforts of all the police, improve the masses of 110 alarming, investigating and handling cases of satisfaction. To spare no efforts to carry out large reciprocal work, this is we improve group Public security and satisfaction of the "golden key". Since the May 2021, the Municipal Public Security Bureau by means of information for all with the public security organs dealing with, masses visits, found in a timely manner, to rectify the problem, to realize the people a sense of security and satisfaction of successive lifting. The visit must be taken seriously, a bit can not be sloppy, to the problem of finding promptly resolved, is strictly prohibited for fraud on the surface of the achievements. To return to each individual, trying to make the people from the bottom of 自1996年以来世界排名第一的沃尔玛公司先后在我国深圳、大连等地建立了沃尔玛购物广场、山好会员店、沃尔玛社区店等形成的分店20多家,见下表,。据此回答26，27题。 26(山姆会员店和部分沃尔玛购物广场分布在城市的边缘地区，其考虑的主要区位因素是 A(土地租金低 B(劳动力丰富且廉价 C(交通方便 D(附近的居民购买力强 27(沃尔玛经营理念“顾客第一”为中国很多零售企业所学习，这反映出 A(科技成为推动企业发展的重要动力 B(文化扩散有利于文化的发展和繁荣 C(这种文化扩散是一种传染扩散 D(这种文化扩散属于等级扩散 图8为我国某河流示意图分析完成28，29题。 28(该河 A(有较长的结冰期 B(在800mm等降水量线以南 C(流域内多涝洼地 D(流域内主要经济作物甜菜 29(治理该河流域洪涝灾害的根本措施是 A(在受灾地区大力植树造林，防止水土流失 图8 B(在上、中游修建蓄洪水库 C(重灾区大规模移民，并不再布局大、中型企业 D(在下游疏浚并增加泄洪通道 30(下列地理现象与交通运输条件的变化有关的是 A(海南岛成为北京的蔬菜基地 B(五大湖地区的乳畜带 C(假日旅游的人们出游距离越来越远 D(区域经济一体化 第?卷(综合题 共80分) 二、综合题(本大题共5小题，满分80分) 31(图9为我国东部地区土地利用变化图，读图完成(12分) adapt to the concept, mode and method of work, establish" economic underdeveloped, responsibility in my "idea, inappropriate spectator. Council formulated the" 50 "measures, the city at all levels of public security organs or folding not withhold had caught carry out fulfil, especially the windows service units to earnestly honor their commitment. To do it right away, the speed and efficiency of practical action for the broad masses of the people more satisfied. Inspector detachment to jointly with the police department, "50" measures for the implementation of the carry out a full range of supervision and inspection. To improve the quality of police enforcement and business skills, further enhance the level of law enforcement. To adhere to the rapid and reliable alarming, trying to make 110 Alarming and fast 1 minute, with good working attitude and norms of law enforcement behavior to the satisfaction of the masses. Is a systems engineering, needs the joint efforts of all the police, improve the masses of 110 alarming, investigating and handling cases of satisfaction. To spare no efforts to carry out large reciprocal work, this is we improve group Public security and satisfaction of the "golden key". Since the May 2021, the Municipal Public Security Bureau by means of information for all with the public security organs dealing with, masses visits, found in a timely manner, to rectify the problem, to realize the people a sense of security and satisfaction of successive lifting. The visit must be taken seriously, a bit can not be sloppy, to the problem of finding promptly resolved, is strictly prohibited for fraud on the surface of the achievements. To return to each individual, trying to make the people from the bottom of 图9 (1)本区农业生产结构发生重大变化的主要原因是( ) A(人类使用电冰箱，破坏臭氧层，导致本区气候变暖 B(现代工业的发展，大气中CO含量的增加，导致本区气候变暖 2C(国家注重调整当地的农业生产结构 D(当地居民为了脱贫致富，采取了调整农业结构的措施 (2)在图中量得王村到张庄的水平距离为3cm，则本图的比例尺约为( ) A(1,240000 B(1,100000 C(1,60000 D(1,30000 (3)2050年以后，本区的土壤性质可能发生变化，变化的原因主要是,。 (4)2050年以后，本区河流的水文特征可能发生什么变化? (5)2050年以后，本区的陆地自然带可能发生什么变化? (6)“2050年土地利用规划图”中一月份0?等温线在王村以西向南弯曲，分析弯曲的原因。 32(分析我国某地气温、年降水量随海拔高度变化图(图10)，回答下列问题:(14分) ?无论冬夏，气温都随海拔高度升高而,，每升1千米，气温平均下降,?。夏季的变幅比冬季要,。 ?该地年降水量随海拔升高的变化规律是,，其水汽主要来自,洋。 ?该地南部地带的气候类型是,，该地最有可能是,山区，判断依据是:,。 图10 ?特殊的地理环境，使该地蕴藏极其丰富的,(能源)，南部河谷地带也是我国,(热带经济作物)的生产基地，在,(粮食作物)的种植上，具有明显的,地带性差异。 adapt to the concept, mode and method of work, establish" economic underdeveloped, responsibility in my "idea, inappropriate spectator. Council formulated the" 50 "measures, the city at all levels of public security organs or folding not withhold had caught carry out fulfil, especially the windows service units to earnestly honor their commitment. To do it right away, the speed and efficiency of practical action for the broad masses of the people more satisfied. Inspector detachment to jointly with the police department, "50" measures for the implementation of the carry out a full range of supervision and inspection. To improve the quality of police enforcement and business skills, further enhance the level of law enforcement. To adhere to the rapid and reliable alarming, trying to make 110 Alarming and fast 1 minute, with good working attitude and norms of law enforcement behavior to the satisfaction of the masses. Is a systems engineering, needs the joint efforts of all the pol