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1、北师大版数学七年级下册期中考试检测试题2008-2009学年度七(下)期中测试卷 数 学 一、精心选一选(本大题共10小题，每小题3分，共30分) 1(下列语句不是命题的是( ) A、两直线平行，内错角相等 B、小红是龙城三中初一(3)班的学生 C、邻补角互补 D、点到直线的距离 2(两直线相交所成的四个角分别分满足下列条件之一，其中不能判定这两直线垂直的条件是( ) A、两对对顶角分别相等B、有一对对顶角互补C、有一对邻补角相等D、有三个角相等 3(如图是“福娃欢欢”的五幅图案，?、?、?、?哪一个图案可以通过平移图案?得到( )A、? B、? C、? D、? 4(下列各图中，正确画出AC边
2、上的高的是( ) A、? B、? C、? D、? 5(若平面镶嵌的地砖的一个顶点处由6块相同的正多边形组成，则此正多边形只能是() A、正方形 B、正三角形 C、正五边形 D、正六边形 6(不是利用三角形稳定性的是( ) A、自行车的三角形车架 B、三角形的房架 C、照相机的三角架 D、长方形门框的斜拉条 7(右图，点E在AC延长线上，下列条件中能判断ABCD 1 ( ) A、?3,?4 B、?1,?2 C、?D=?DCE D、?D，?ACD,180? 8(在平面直角坐标系中，依次描出下列各点， 并将各组内的点依次连接起来:(1)(2，1)，(2，0)， (3，0)，(3，4);(2)(3，6
3、)，(0，4)，(6，4)，(3，6)。你发现所得的图形 是( ) A、两个三角形 B、房子 C、雨伞 D、电灯 9(?ABC中，三边长分别为5，8，x，则x的取值范围为( ) 13 B、5,x,8 C、4,x,12 D、不能确定 A、3,x,10(如果P(m+3,2m+4)在y轴上,那么m=( ) A. 0 B. 3 C. -2 D. 2 二、细心填一填(本大题共8小题，每小题3分，共24分) 11(已知多边形的内角和为540?,则该多边形的边数为_。 12(将点Q(,2，3)向左平移1个单位长度，再向下平移2个单位长度得到点Q，则点Q的坐标为_。 13(若有两条线段的长度分别是1cm，10
4、cm，请你写出一个第三条线段的长度_cm，使这三条线段能组成一个三角形。 14(若P在第二象限，且到x轴的距离为3，到y轴的距离为4，则点P的坐标为_。 15(把一副三角板按如图方式放置，则两条斜边所形成的钝角 _。 16(有一个英文单词的字母顺序对应如右图中的有序数对分别为 2 (5，3)，(6，3)，(7，3)，(4，1)，(4，4)，请你把这个英文单词写出来或者翻译成中文为_。 17(如图，直角ABC的周长为2008，在其内部有五 个小直角三角形，则这五个小直角三角形的周长为_。 18(五子棋和象棋、围棋一样，深受广大棋友的喜爱，其 规则是:1515的正方形棋盘中，由黑方先行，轮流弈子，
5、 在任一方向上连成五子者为胜。如右图是两个五子棋爱好 者甲和乙的对弈图;(甲执黑子先行，乙执白子后走)，观 察棋盘思考:若A点的位置记做(8，4)，甲必须在_位置上落子，才不会让乙马上获胜。 三、解答下列各题(共计66分) 19(6分)2007年是“金猪年”.下面的方格纸中，画出了一个“小金猪”的图案，将“小金猪”向右平移13格，请在方格纸中作出“小金猪”平移后的图案 20(7分)如右图，已知直线ab，?2=140?,求?1的度数。 21(7分)如右图，?1,30?，?B,60?，AB?AC。 (1)?DAB，?B等于多少度, (2)试说明ADBC。 3 22(8分)如下图，AD是?ABC的B
6、C边上的高，AE是?BAC的角平分线，若?B,47?，?C,73?，求?DAE的度数。 23(8分)如图，?DAB，?D,180?，AC平分?DAB，且?CAD,25?，?B,95? (1)求?DCA的度数; (2)求?FEA的度数。 24(9分)如图，直线DE交?ABC的边AB、AC于D、E，交BC延长线于F，若?B,67?，?ACB,74?，?AED,48?求?BDF的度数( 25(本题9分)如图，一轮船由B处向C处航行，在B处测得C处在B的北偏东75?方向上，在海岛上的观察所A测得B在A的南偏西30?方向上，C在A的南偏东25?方向。若轮船行驶到C处，那么从C处看A，B两处的视角?ACB
7、是多少度, 4 26(本题12分)如图，AD为?ABC的中线，BE为?ABD的中线。 (1)?ABE=15?，?BAD=40?，求?BED的度数; (2)在?BED中作BD边上的高; (3)若?ABC的面积为40，BD=5，则点E到BC边的距离为多少, A E B D C5 (英文版 ) Two regulations promulgated for implementation is in the party in power for a long time and the rule of law conditions, the implementation of comprehensive
8、 strictly strategic plan, implementation in accordance with the rules and discipline to manage the party, strengthen inner-party supervision of major initiatives. The two regulations supporting each other, the adhere to a positive advocate, focusing on morality is of Party members and Party leading
9、cadres can see, enough to get a high standard; around the party discipline, disciplinary ruler requirements, listed as negative list, focusing on vertical gauge, draw the party organizations and Party members do not touch the bottom line . Here, the main from four square face two party rules of inte
10、rpretation: the first part introduces two party Revised regulations the necessity and the revision process; the second part is the interpretation of the two fundamental principles of the revision of laws and regulations in the party; the third part introduces two party regulations modified the main
11、changes and needs to grasp several key problems; the fourth part on how to grasp the implementation of the two regulations of the party. and revised the necessity and revised history of the CPC Central Committee the amendment to the Chinese Communist Party members and leading cadres honest politics
12、several guidelines and column 1 by 2015 to strengthen 6 party laws and regulations focus. Two party regulations revision work lasted a Years, pooling the wisdom of the whole party, ideological consensus, draw historical experience, respect for the wisdom of our predecessors, which reflects the unity
13、 of inheritance and innovation; follow the correct direction, grasp the limited goals, adhere to the partys leadership, to solve the masses of the people reflect a focus on the problem. The new revision of the and , reflects the partys 18 and the eighth session of the third, the spirit of the fourth
14、 plenary session, reflecting the experience of studying and implementing the General Secretary Xi Jinping series of important speech, reflects the partys eighteen years comprehensive strictly practice. (a) revised two regulations of the party need of in based on revised, the promulgation and impleme
15、ntation of January 2010, to strengthen the construction of the contingent of leading cadres play an important role. But with the party to manage the party strictly administering the deepening, has not been able to fully meet the actual needs. Content is too complicated, eight prohibition, 52 are not
16、 allowed to hard to remember, and also difficult to put into practice; the second is concisely positive advocated by the lack of prohibited provisions excessive, no autonomy requirements; the third is banned terms and discipline law, both with the party discipline, disciplinary regulations 7 repeat
17、and Criminal law and other laws and regulations repeat; the fourth is to clean the theme is not prominent, not for the existing problems, and is narrow, only needle of county-level leading cadres above. is in 1997 based on revision, in December 2003 the promulgation and implementation, to strengthen
18、 the construction of the party play very important role. Along with the development of the situation, which many provisions have been unable to fully meet the comprehensive strictly administering the practice needs. One is Ji law, more than half of the provisions and criminal law and other countries
19、 laws and regulations Repetition; two is the political discipline regulations is not prominent, not specific, for violation of the party constitution, damage the authority of Party Constitution of misconduct lack necessary and serious responsibility to pursue; third is the main discipline for the le
20、ading cadres, does not cover all Party members. Based on the above situation, need to and the two is likely to be more relevant regulations first amendment. By revising, really put the authority of Party discipline, the seriousness in the party tree and call up the majority of Party members and cadr
21、es of the party constitution of party compasses party consciousness. (II) two party regulations revision process the Central Committee of the Communist Party of China attaches great importance to two regulations revision . Xi Jinping, general books recorded in the Fifth 8 Plenary Session of the eigh
22、th session of the Central Commission for Discipline Inspection, on the revised regulations made clear instructions. According to the central deployment, the Central Commission for Discipline Inspection from 2014 under six months begin study two regulations revision. The Standing Committee of the Cen
23、tral Commission for Discipline Inspection 4 review revised. Comrade Wang Qishan 14 times held a special meeting to study two regulations revision, amendment clarifies the direction, major issues of principle, path and target, respectively held a forum will listen to part of the province (area) secre
24、tary of the Party committee, Secretary of the Discipline Inspection Commission, part of the central ministries and state organs Department The first party committee is mainly responsible for people, views of experts and scholars and grassroots party organizations and Party members. Approved by the C
25、entral Committee of the Communist Party of China, on 7 September 2015, the general office of the Central Committee of the Party issued a notice to solicit the provinces (autonomous regions, municipalities) Party, the central ministries and commissions, state ministries and commissions of the Party (
26、party), the General Political Department of the military, every 3 people organization of Party of two regulations revision opinion. Central Commission for Discipline Inspection of extensive solicitation of opinions, careful study, attracting, formed a revised sent reviewers. In October 8 and October
27、 12, Central Committee Political 9 Bureau Standing Committee and the Political Bureau of the Central Committee After consideration of the two regulations revised draft. On October 18, the Central Committee of the Communist Party of China formally issued two regulations. Can say, two laws amendment c
28、oncentrated the wisdom of the whole party, embodies the party. Second, and revision of the basic principles of two party regulations revision work and implement the partys eighteen, ten eight plenary, the spirit of the Fourth Plenary Session of the Eleventh Central Committee and General Secretary Xi
29、 Jinping important instructions on the revised and , highlighting the ruling party characteristics, serious discipline, the discipline quite in front of the law, based on the current, a long-term, advance as a whole, with Bu Xiuding independent and . Main principle is: first, adhere to the party con
30、stitution to follow. The constitution about discipline and self-discipline required specific, awaken the party constitution of party compasses party consciousness, maintaining the authority of the constitution. General Secretary Xi Jinping pointed out that no rules, no side round. Party constitution
31、 is the fundamental law, the party must follow the general rules. In early 2015 held the eighth session of the Central Commission for Discipline Inspection Fifth Plenary Session of the 16th Central Committee, Xi Jinping again pointed out that constitution is the party must follow the general rules,
32、but also the general rules. the revision 10 of the and is Method in adhere to the regulations established for the purpose of combining rule of virtue is to adhere to the party constitution as a fundamental to follow, the constitution authority set up, wake up the party constitution and party rules t
33、he sense of discipline, the party constitution about discipline and self-discipline specific requirements. 4 second is to adhere to in accordance with the regulations governing the party and the party. The Party of rule of virtue de, mainly refers to the partys ideals and beliefs, excellent traditio
34、nal style. The revised the closely linked to the self-discipline, insisting on the positive initiative, for all members, highlight the vital few, emphasized self-discipline, focusing on the morality, and the majority of Party members and the ideological and moral standards. The revised Ji method sep
35、arately, Ji, Ji Yan to Method, as a negative list, emphasizing the heteronomy, focusing on vertical gauge. Is this one high and one low, a positive reaction, the strict party discipline and practice results transformation for the integration of the whole party to observe moral and discipline require
36、ments, for the majority of Party members and cadres provides benchmarking and ruler. Third, insist on to. In view of the problems existing in the party at the present stage, the main problems of Party members and cadres in the aspect of self-discipline and abide by the discipline to make clearly def
37、ined, especially the partys eighteen years strict political discipline and political rules, organization and discipline and 11 to implement the central eight provisions of the spirit against the four winds and other requirements into Disciplinary provisions. Not one pace reachs the designated positi
38、on, focusing on in line with reality, pragmatic and effective. After the revision of major changes, major changes in the and modified and needs to grasp several key problems (a) adhere to according to regulations governing the party and party with morals in combination, for at the present stage, the
39、 leadership of the party members and cadres and Party members in existing main problems of self-discipline, put forward principles, requirements and specifications, showing Communists noble moral pursuit, reflected at all times and in all over the world ethics from high from low 5 common requirement
40、s. One is closely linked to the self-discipline, removal and no direct relation to the provisions of . the second is adhere to a positive advocate, eight prohibition 52 are not allowed to about the content of the negative list moved into synchronization amendment . Three is for all the party members
41、, will apply object from the leadership of the party members and cadres to expand to all Party members, fully embodies the comprehensive strictly required. The fourth is prominent key minority, seize the leadership of the party members and cadres is the key, and put forward higher requirements than
42、the ordinary Party members. Five is to simplify, and strive to achieve concise, easy to understand, easy to remember. The revised is the ruling Party since the first insists on 12 a positive advocate forAll Party members and the self-discipline norms, moral declaration issued to all members of the p
43、arty and the National Peoples solemn commitment. criterion of a clean and honest administration consists of 4 parts, 18, more than 3600 words. After the revision of the , a total of eight, 281 words, including lead, specification and Party member cadre clean fingered self-discipline norms, etc. Part
44、 3 members low-cost clean and self-discipline, the main contents can be summarized as four must eight code. Lead part, reiterated on ideal and faith, fundamental purpose, the fine traditions and work style, noble sentiments, such as four must the principle of requirements, strong tone of self-discip
45、line, The higher request for 6 and supervised tenet, the foothold in permanent Bao the partys advanced nature and purity, to reflect the revised standards requirements. Members of self-discipline norms around the party members how to correctly treat and deal with the public and private, cheap and ro
46、t thrifty and extravagance bitter music, put forward the four norms. Party leader cadre clean fingered self-discipline norms for the leadership of the party members and cadres of the vital few, around the clean politics, from civil servant of the color, the exercise of power, moral integrity, a good family tradition and other aspects of the leadership of the party members and cadres of the four norms norm norm. The Party members self-discipline norms and party members and leading cadre clean fingered self-discipline norms, a 13 total of eight, collectively referred to as the eight. Four mu