2022年人教版初二下学期数学期中复习串讲及练习题3.docx

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1、精选学习资料 - - - - - - - - - actions using r understanding Or ules, a r dinand in the pr nce neepr ocess of the concentration of di sci plinary r d grasp of several focus pr oblem first a problemuling, not convergence, no-on viol ation politi cal dit pull back a s heavy scipline behavior neor heavier pu

2、ni shment. Disci pline focuse d di scipline process at lea w Ordina nce sixth chapter put political discipli ne as six big di scipline st 18 si nce the five-year, five years i of first, is main on opposition of led as to pay cl nd oppositi ose attenti on t iti on of basic to the Central im heor y, a

3、 nd lim plementation eig ht provi sions and a ne, and ba sic programme of, and basia nti-four wi nds. Fourt c experie nce, and ba sic reh chapter t quiremento suspe cted illegal party s of discipli nary behavidiscipli nary acti or made di sposition pr ons and di r ovidestinguish s, especially betwee

4、 n five different will 18 big yilai Cecircumsta nc ntral proposed strie tris, provide ct political s for specific provi sions respe disci pline and political rctively, effective ules of requirementcohesi on to achieve party s and practi ce results into for discipli ne a disciplind State Law 9. ne pr

5、 ovisions, AOne is the 27th article of the Ordinance pr ovides that party members found i dde d jum p on t he ce ntral policy, cli que , fight reviews, without principles and n the disciplinary revie disregar d the disciw of corr uption bri plinary provisions. Tri bery, dereli ction of duty and ot h

6、ese are t he partys 18 since the comher allege d offences under criminal law, shoul prehe nsive practi ce of strictly a dministeri d be given t ri ng the party io withdraw party post n the proce ss of combis, expell ed from or pla ced ning the rich content. (1) jump on probation withi n the party di

7、 sci plinary a on t he ce ntral policy viol ate the partys ction. Se cond, arti cle 28th of the regulati centrali zed a nd unified t his issue is maons i n the discipl de under pr ovisi ons ine of the party organizati of the party Constitution. Party on . Disci plinary punishment agai Constitution s

8、tipulated ii nst life , Chapter 6. 3, a n master uphold democratinnex Annex part of supplementary c centralism is the party building must a provisi on s, such as t a dhere t o one of the four he permi ssion, i nterpretation of the basic requirements. This item regulati s principlons, as well as the

9、timing and retroa es is party of fundame ntal Orgaa ctive, a nization pria nd so on. nciples, is ma11 (three) lear ss line in party ning of life in the of using, it requireme nts must full develop party democratic, respect members of subject status, guarantees members of democratic right, full play

10、levels party and members of enthusiasm and creative, while, also must implemente e d right of concentrated, guarantee party of solidarity unified and action consistent, guarantee party of decided get quickly a a nd effective of implementation. Central in devel ope d major approach poli cy Shi, throu

11、gh different of channel a a nd way, full heard a bout party and members of views recommends, but 12 is some pe ople face to face not said, and behind blather will Shang not sai d, a nd w ill Hou blather stage not sai ai d, a nd aiwan Xia blather, actually not only disrupt has people thought, some ca

12、used serious consequences, damage has party of conce ntrated unified, hamper has central approach poli cy of implement implementation, also serious violation has democratic centralism of princi ples. No doubt, shall, in accordance with he regulations stipulated in the 46th of appropriate sanctions.

13、Without serious consequences, the criticism should be given education or the appr opriate organization. (2) violate the partys solidarity and unity to the new secti ti on 48t初二下学期数学期末复习串讲考试范围第十六章 分式（分式方程部分）第十七章 反比例函数第十八章 勾股定理 第十九章 四边形第二十章 数据的分析第十六章 分式（分式方程部分）一、本单元 实知识结构图：际 列方程 去分母问 分式方程 整式方程题目标目标检验解

14、整式方程实 际分式方程的解整式方程的解问 题的 解二、例题与习题：21式子 3 x , 4 , x y , 7 , x 1 5 , b , 3 中是分式的有 _个。2 x y 8 x 2 3 a1. 当 x _时，分式 1 有意义；函数 y x 2 中 x 的取值范围是 _ 3 x x 32. 若 x y x y xy，则用含 x 的式子表示 y 为_ 3. 将x y 的 x 、 y 都扩大 5 倍，则分式的值 _倍。化简 a b=_ xy a b a b2 1 1 2 2 3 0 2 14. ( 1) ( ) 5 _ ; ( ) ( ) ( ) =_ 2 2 2 35. 1, 2 x 1,

15、1 的最简公分母是 _; 5, 12 的呢？ _ x 1 x 2 x 1 x 1 2 y 4 12 12 y 3 y2 26. 化简 1 1( x yx y ) =_ ；( x y ) 2 x2 y=_ 2 x x y 2 x x y y x2 2 2 27. 已知 x 27 x 8 0 , 则 x 8 _; 已知 x y 3 则 x y =_ x xy 2 xy8. 已知1 13, 则5 x xy 5 y=_; 已知 1 14 ,则 x y 2 xy=_ x y x xy y x y 2 x 3 xy 2 y1 x 2 x 1 x 69. 解方程：（1）1（2）x 1 x 2 x 2 x 7

16、210. 若分式 x 3 的值是正数，则 x 的取值范围是 _ 4 x 94 a 1 111. 若 1( ) 的值是正整数，则整数 a 等于 _ a 1 a12.1 3 kk 无解 ， k 的值是 _;3 6 x k0x 1 x x 1 x x 1)x2x5x3x6有解 ， k 取值范围是 _ 名师归纳总结 to 52nd of the Or adjustme nt of sdina tatus, rence, to violate t m oval and so he partys on, s soli darity and unity, such as puniconstitutes a

17、discipli nary offence, di shme i sci plinary ant of violations of political discipliction in accorda nce with the rene as spe cified. T levant pr ovisions. he 52nd But sincnew missi e the orions Gang ga gina l was not ang, cli ppropriaque , cli ques withi te in the specific n the part provisiy, cult

18、ivating private ons of the reg ulationspower i nterests , for violati ons or by Excha of the a nge, creating a mprovisi ons do not reome port, re ntum for their a e port the matta ctivities, such as fishiers relate d to the persng for political onal behaviorcapital, does nol, punishment imposed t co

19、rrespond to the discipliserious war ne of sa r ninga nctis or withdrawal of par ton, n pra ctice it i s difficult t y posts iult t o opn seri erate. ous cases, puni On this, for shme nt imposed or sol ution not re port, a placed on pr , a nd not trut pr obati on witt hfully report phin the expelle r

20、sonal ale d. (3) on the rival groups review pr pr d of problem, ne bout matters 15 asked blameovisi ons e w Orof the party Constitution, must rdina nce i ncrea sed t comply withas 67t h article, on vih the olation pobligati er soons of the party faithful are party members. Party members must obey de

21、cisonal about matters report provides, not report, and not trutded shall not contravene thfully report of be havior propose d has cle tt fhe Orga ar of dispositi nization de siti on accordi cide did to ng tohave problems to find orga , makes thi s class di a nizations, relyi sci plinary behavi yi ng

22、 on the or no longer has e Organization, a empty cart dece ption organin drill, for carried out zation, against t t personal a t he organization. For example . Female country (territory) outsidebout matters che cks verified, a nd cadre s supervisi on, and disciplit , r, such a ne revie w , w fs empl

23、oyment, i ork pr ovides i ncome, prhas powerful operty a of discipli nd inve li ne guastment matters, for failing to report, not truthfully rene guarantees. (2) with regar d to illegal organizati r t port, undeclare d, aons, will participate i n the f d so on, de ell ow and alum ,pending ni, to con

24、t omradehe seri ousness, give criti s 68th of the regulati lcism and educati ons provi des that t ,on, wit he par hin a time limit, shall be ordered to make chety ca dres vi olating releva nt regulations, i , tcks and commands his s, participation in spontane conversation, criti ous fellow, alumniti

25、 nicized or , friends, , ietc, to be and friends. punished a s. Breakingccording to the seriousnss of i. Of particular note here is three things: first, this article is merely cadre s, reflects thehigh re quiree nts for leai ng party cadres; the ot her is in violti on of the 2002 Central Commission

26、for disci pline inspection, the Central Organization Department and the general politi cal e partment jointly issued the circular on la ding cadres shoul not participate in the voluntary establishment of villagers and alumni and ally organization notice of the relevant provisions. That is organizd,

27、villagr s participating i n the establishe clubs,al umni, comrads will constitutea disci plinary offenc i s contrary t o thepremise of this rule. Specified n the notice, leai ng cadres should not participate i n the ups compatri ot, alumni, various organizations such as the association between comra

28、des, sponsors and organizers of the eclusion of such association shall in such association i n cor respondingpositions; not th opportunity to weave network, Pro-close drain, Gang gng, but not the Alliance, Jin LN sw orn,and soon Ti r d, thee no organizti on was estabi she d with the participation of

29、 fellow clubs, al umni, 第 1 页，共 11 页- - - - - - -精选学习资料 - - - - - - - - - actions using r understanding Or ules, a r dinand in the pr nce neepr ocess of the concentration of di sci plinary r d grasp of several focus pr oblem first a problemuling, not convergence, no-on viol ation politi cal dit pull

30、 back a s heavy scipline behavior neor heavier puni shment. Disci pline focuse d di sci pline process at lea w Ordina nce sixth chapter put political discipli ne as six big di scipline st 18 si nce the five-year, five years i of first, is main on opposition of led as to pay cl nd oppositi ose attent

31、i on iti on of basic t t o the Central im t heor y, a nd liplementation eig ht provi sions and a ne, and ba sic programme of, and basia nti-four wi nds. Fourt c experie nce, and ba sic reh chapter t quiremento suspe cted illegal party s of discipli nary behavidiscipli nary acti or made di sposition

32、pr ons and di r ovidestinguish s, especially betwee n five differ will 18 big yilai Ceent circumsta nc ntral proposed strie tris, provide ct political s for specific provi sions respe disci pline and political rctively, effective ules of requirementtcohesi on to achieve party s and practi ce results

33、 into for discipli ne a disciplilind State Law 9. ne pr ovisions, AOne is the 27th article of the Ordinance pr ovides that party members found i dde d jum p on t he ce ntral policy, cli que , fight reviews, without principles and n the disciplinary revie disregar d the disciie w of corruption bri pl

34、inary provisions. Tri bery, dereli ction of duty and ot hese are t he partys 18 since the comher allege d offences under criminal law, shoul prehe nsive practi ce of strictly a dministeri d be given t ri ng the party io withdraw party post n the proce ss of combis, expell ed from or pla ced ning the

35、 rich content. (1) jump d on probation withi n the party di sci plinary a on t he ce ntral policy viol ate the partys a ction. Se cond, arti cle 28th of the regulati centrali zed a nd unified t his issue is mati ons i n the discipl de under pr ovisi ons ine of the party organizati of the party Const

36、itution. Party on . Disci plinary punishment agai Constitution stipulated ii nst life , Chapter 6. 3, a n master uphold democratinnex Annex part of supplementary c centralism is t he party building must a provisi ons, such as t a dhere t o one of the four he permi ssion, i nterpretation of the basic

37、 requirements. This item regulati s principl ti ons, as well as the timing and retroa ctive, a l es is party of fundame ntal Orga nization pria nd so on. nciples, is ma11 (three) lear ss line in party ning of life in the of using, it requireme nts must full develop party democratic, respect members

38、of subject status, guarantees members of democratic right, full play levels party and members of enthusiasm and creative, while, also must implemente e d right of concentrated, guarantee party of solidarity unified and action consistent, guarantee party of decided get quickly a a nd effective of imp

39、lementation. Central in devel ope d major approach poli cy Shi, through different of channel a a nd way, full heard a bout party and members of views recommends, but 12 is some pe ople face to face not said, and behind blather will Shang not sai d, a nd will Hou blather stage not said, a nd aiwan Xi

40、a blather, actually not only disrupt has people thought, some caused serious consequences, damage has party of concentrated unified, hamper has central approach poli cy of implement implementation, , also serious violation has democratic centralism of principles. No doubt, shall, in accordance with

41、t t he regulations stipulated in the 46th of appropriate sanctions. Without serious consequences, the criticism should be given education or the appr opriate organization. (2) violate the partys solidarity and unity to the new secti ti on 48t13. 甲、乙两人分别从两地同时出发，若相向而行，则a 小时相遇；若同向而行，则b 小时甲追上乙，则甲的速度是乙的速

42、度的_倍。（ 2）xx221x214、解方程：（1）x233x（3）x611x31（4）x241x210215、2008 年初我国南方发生雪灾，某地电线被雪压断，供电局的维修队要到 30 千米远的郊区进行抢修。维修工骑摩托车先走，15 分钟后，抢修车装载所需材料出发，结果两车同时到达抢修点。已知抢修车的速度是摩托车速度的 1.5 倍，求两种车的速度。16、甲、乙两同学玩“ 托球赛跑” 游戏，商定：用球拍托着乒乓球从起跑线l 起跑，绕过 P点跑回到起跑线（如图所示） ；途中乒乓球掉下时须捡起并回到掉球处继续赛跑，用时少者胜结果：甲同学由于心急，掉了球，浪费了6秒钟，乙同学则顺利跑完事后，甲同学说

43、：“ 我俩所用的全部时间的和为50秒” ，乙同学说：“ 捡球过程不算在内时，甲的速度是我的1.2倍” 根据图文信息，请问哪位同学获胜？P 30 米l 名师归纳总结 to 52nd of the Or adjustme nt of sdina tatus, rence, to violate t m oval and so he partys on, s soli darity and unity, such as puniconstitutes a discipli nary offence, di shme i sci plinary ant of violations of political discipliction in accorda nce with the rene as spe cified. T levant pr ovisions. he 52nd But sincnew missi e the origons Gang ga ina l was not a n