分式练习题(各题型-含答案).pdf

well,with the effectiveness of services to defend the interests of the masses.Third,we should strive to do well.To achieve good practical results,the key is to know the law,to grasp the laws and using laws.Office of economic development,social progress,there are rules to follow.Only act according to the law,to overcome blindness and strengthening initiative,creative.Working in the Office,we should be good at analyzing the essence of things,to find regular thing,change from passive to active,to seek one.Investee 2.establishment of evaluation system.Evaluation system is essentially an incentive mechanism,the evaluation was objective and fair,reasonable,and can stimulate a persons energy,mobilizing peoples enthusiasm or be misleading,dampened the enthusiasm of people.At present,the concept of people-oriented people,but to establish and perfect evaluation system is still lagging behind.Work in this area should be seriously caught up.Three emphasis on to take advantage of.Is a focus on standards and scientific.A fundamental point of the evaluation criteria,is to keep contact,development,comprehensive eye evaluation of cadres.Office work,both record and potential performance;both subjective efforts,take another look at the objective condition;both pragmatic enough,take another look at the retreat level.Second,focus on participating the breadth of the subject.Evaluation of cadres must give full play to democracy,cadres and the masses handing over evaluation.Office work services leadership and service base,serve the people,then nominated the main object will contain a variety of services,so that assessment was accurate and to avoid one-sidedness.Third,pay attention to the seriousness of the conclusion.The use of evaluation findings is mainly embodied in his direction.Permitted to choose one,it would be tantamount to establishing a banner.Evaluation cant take care of the balance,otherwise it would undermine the offset the positive significance of evaluation.Office of the party committees at all levels should take the findings as on the cadres bonus-penalty,an important basis for future movements,incentive and restraint effect of making evaluations.3.Prevention of understanding infidelity.People-centered development,concrete is dialectical,.In practice in the process,to prevent one-sided and still look,from actual people.One is to use dialectical point of view to understand.Humanist is the core of the scientific Outlook on development,remains the development of the scientific Outlook on development emphasizes,is still taking economic construction as the Center.Any departure from the development of thought and action,is a misinterpretation and misunderstanding of people-oriented.Adhere to people-oriented both to overcome one-sidedness of the old,but also to prevent one-sidedness,not accelerating the development of people and the opposition.Must be very clear,people oriented and speeding up development is not opposed,but consistent,we should never bepeople-oriented in the name of reducing our enthusiasm.Premier Wen Jiabaos Government work report this year,identified as 7%growth,2.1%lower than last years 9.1%,but in 8 work remains to accelerate development in the first place.Work standards.Second is to use the scale of development to understand.Society is evolving,human needs are also changing.Practice of humanism is a long-term process and cannot be achieved overnight.To treat people if you stand still and rigid dogma,it is possible to return to this,see things but not peoples old ways.Therefore,we have to follow the development of the times,and continue debugging the humanist perspective,innovative people-oriented way.Under the new historical conditions,we are requested by the times,set up a brand new concept,a high starting point,high standard of armed people,shaping,exercise,people,constantly taking the new connotation of the times.Terms of Office,is to lead the vast numbers of cadres to actively adapt to the knowledge faster and actively adapt to the increasingly high level of leadership situation,actively adapt to the demand of the masses more and more situations,eager to learn,enhance accumulation,efforts,honed the ability to overcome a good service,panic.Third is to use realistic understanding.Adhere to people-oriented must be based on reality,not divorced from reality.Desk no water cups here in Hong Kong,staff need to drink some water to the drinking fountain on a floor,the glass used is a one-time non-cone type.Drink this cup can only hold,cannot be put down.This is not only to save on glass materials,more important is to force you to get drinking water,go back to your seat business.Our emphasis on people-oriented,does not imply you can indulge the desires,the comfortable,the pursuit of enjoyment.Office of the party committees at all levels of our comrades,must continue to maintain the style of plain living and hard struggle,to stand up to the tests of temptations,exciting energy conservation disposition to the spirit of selfless dedication and provide services.Investee 4.clearly defined responsibilities.Putting people first is a common vision of development,everyone is a liability.People-oriented,above and below with the responsibility for coordinating system must be established and hold everyone accountable.First,we must strengthen the leadership.In its place,its governance,its level,bear the responsibility of the Division.This is the minimum requirement for leaders,is a measure of the basic criteria for whether a leading cadre is competent.Leaders need to it is an official term for the benefit of mission,consciously assume responsibility for implementing people-oriented.Director of the Office of the party committees at all levels is the responsibility of the units to implement people-oriented,to manage their people,plug in own responsibility,effectively enhance the education of leading cadres,cadres and cadres work,efforts to revitalize the Office of human resources,Office work is full of vigor and vitality第十六章第十六章 分式分式16161 1 分式分式16.1.116.1.1 从分数到分式从分数到分式一、一、教学目标教学目标1 了解分式、有理式的概念.2理解分式有意义的条件，分式的值为零的条件；能熟练地求出分式有意义的条件，分式的值为零的条件.二、重点、难点点、难点1 1重点：重点：理解分式有意义的条件，分式的值为零的条件.2 2难点：难点：能熟练地求出分式有意义的条件，分式的值为零的条件.三、课堂引入三、课堂引入1让学生填写 P4思考，学生自己依次填出：，.710as33200sv2学生看 P3 的问题：一艘轮船在静水中的最大航速为 20 千米/时，它沿江以最大航速顺流航行 100千米所用实践，与以最大航速逆流航行 60 千米所用时间相等，江水的流速为多少？请同学们跟着教师一起设未知数，列方程.设江水的流速为 x 千米/时.轮船顺流航行 100 千米所用的时间为小时，逆流航行 60 千米所用时间小时，所以=v20100v2060v20100.v20603.以上的式子，有什么共同点？它们与分数有什么相同点和不同点？v20100v2060assv五、例题讲解五、例题讲解P5 例 1.当 x 为何值时，分式有意义.分析已知分式有意义，就可以知道分式的分母不为零，进一步解出字母 x 的取值范围.提问如果题目为：当 x 为何值时，分式无意义.你知道怎么解题吗？这样可以使学生一题二用，也可以让学生更全面地感受到分式及有关概念.(补充)例 2.当 m 为何值时，分式的值为 0？（1）（2）(3)分析 分式的值为 0 时，必须同时满足两个条件：分母不能为零；分子为零，这样求出的 m 的12解集中的公共部分，就是这类题目的解.答案（1）m=0 （2）m=2 （3）m=1六、随堂练习六、随堂练习1判断下列各式哪些是整式，哪些是分式？9x+4,，x7209y54m238yy 91x2.当 x 取何值时，下列分式有意义？（1）（2）（3）3.当 x 为何值时，分式的值为 0？1mm32mm112mm4522xxxx23523xxxx221well,with the effectiveness of services to defend the interests of the masses.Third,we should strive to do well.To achieve good practical results,the key is to know the law,to grasp the laws and using laws.Office of economic development,social progress,there are rules to follow.Only act according to the law,to overcome blindness and strengthening initiative,creative.Working in the Office,we should be good at analyzing the essence of things,to find regular thing,change from passive to active,to seek one.Investee 2.establishment of evaluation system.Evaluation system is essentially an incentive mechanism,the evaluation was objective and fair,reasonable,and can stimulate a persons energy,mobilizing peoples enthusiasm or be misleading,dampened the enthusiasm of people.At present,the concept of people-oriented people,but to establish and perfect evaluation system is still lagging behind.Work in this area should be seriously caught up.Three emphasis on to take advantage of.Is a focus on standards and scientific.A fundamental point of the evaluation criteria,is to keep contact,development,comprehensive eye evaluation of cadres.Office work,both record and potential performance;both subjective efforts,take another look at the objective condition;both pragmatic enough,take another look at the retreat level.Second,focus on participating the breadth of the subject.Evaluation of cadres must give full play to democracy,cadres and the masses handing over evaluation.Office work services leadership and service base,serve the people,then nominated the main object will contain a variety of services,so that assessment was accurate and to avoid one-sidedness.Third,pay attention to the seriousness of the conclusion.The use of evaluation findings is mainly embodied in his direction.Permitted to choose one,it would be tantamount to establishing a banner.Evaluation cant take care of the balance,otherwise it would undermine the offset the positive significance of evaluation.Office of the party committees at all levels should take the findings as on the cadres bonus-penalty,an important basis for future movements,incentive and restraint effect of making evaluations.3.Prevention of understanding infidelity.People-centered development,concrete is dialectical,.In practice in the process,to prevent one-sided and still look,from actual people.One is to use dialectical point of view to understand.Humanist is the core of the scientific Outlook on development,remains the development of the scientific Outlook on development emphasizes,is still taking economic construction as the Center.Any departure from the development of thought and action,is a misinterpretation and misunderstanding of people-oriented.Adhere to people-oriented both to overcome one-sidedness of the old,but also to prevent one-sidedness,not accelerating the development of people and the opposition.Must be very clear,people oriented and speeding up development is not opposed,but consistent,we should never bepeople-oriented in the name of reducing our enthusiasm.Premier Wen Jiabaos Government work report this year,identified as 7%growth,2.1%lower than last years 9.1%,but in 8 work remains to accelerate development in the first place.Work standards.Second is to use the scale of development to understand.Society is evolving,human needs are also changing.Practice of humanism is a long-term process and cannot be achieved overnight.To treat people if you stand still and rigid dogma,it is possible to return to this,see things but not peoples old ways.Therefore,we have to follow the development of the times,and continue debugging the humanist perspective,innovative people-oriented way.Under the new historical conditions,we are requested by the times,set up a brand new concept,a high starting point,high standard of armed people,shaping,exercise,people,constantly taking the new connotation of the times.Terms of Office,is to lead the vast numbers of cadres to actively adapt to the knowledge faster and actively adapt to the increasingly high level of leadership situation,actively adapt to the demand of the masses more and more situations,eager to learn,enhance accumulation,efforts,honed the ability to overcome a good service,panic.Third is to use realistic understanding.Adhere to people-oriented must be based on reality,not divorced from reality.Desk no water cups here in Hong Kong,staff need to drink some water to the drinking fountain on a floor,the glass used is a one-time non-cone type.Drink this cup can only hold,cannot be put down.This is not only to save on glass materials,more important is to force you to get drinking water,go back to your seat business.Our emphasis on people-oriented,does not imply you can indulge the desires,the comfortable,the pursuit of enjoyment.Office of the party committees at all levels of our comrades,must continue to maintain the style of plain living and hard struggle,to stand up to the tests of temptations,exciting energy conservation disposition to the spirit of selfless dedication and provide services.Investee 4.clearly defined responsibilities.Putting people first is a common vision of development,everyone is a liability.People-oriented,above and below with the responsibility for coordinating system must be established and hold everyone accountable.First,we must strengthen the leadership.In its place,its governance,its level,bear the responsibility of the Division.This is the minimum requirement for leaders,is a measure of the basic criteria for whether a leading cadre is competent.Leaders need to it is an official term for the benefit of mission,consciously assume responsibility for implementing people-oriented.Director of the Office of the party committees at all levels is the responsibility of the units to implement people-oriented,to manage their people,plug in own responsibility,effectively enhance the education of leading cadres,cadres and cadres work,efforts to revitalize the Office of human resources,Office work is full of vigor and vitality（1）（2）(3)七、课后练习七、课后练习1.列代数式表示下列数量关系，并指出哪些是正是？哪些是分式？(1）甲每小时做 x 个零件，则他 8 小时做零件 个，做 80 个零件需 小时.（2）轮船在静水中每小时走 a 千米，水流的速度是 b 千米/时，轮船的顺流速度是 千米/时，轮船的逆流速度是 千米/时.(3)x 与 y 的差于 4 的商是 .2当 x 取何值时，分式 无意义？3.当 x 为何值时，分式 的值为 0？八、答案：八、答案：六、六、1.1.整式：9x+4,分式：,，209y54mx7238yy 91x2 2(1）x-2 （2）x （3）x2 3 3（1）x=-7 （2）x=0 (3)x=-1七、七、1 11 18x,a+b,;整式：8x,a+b,;bas4yx4yx分式：,x80bas 2 X=3.3.x=-1课后反思：课后反思：16.1.2 分式的基本性质分式的基本性质一、教学目标一、教学目标1理解分分式的基本性质.xx57xx3217x802332xxx212312xxwell,with the effectiveness of services to defend the interests of the masses.Third,we should strive to do well.To achieve good practical results,the key is to know the law,to grasp the laws and using laws.Office of economic development,social progress,there are rules to follow.Only act according to the law,to overcome blindness and strengthening initiative,creative.Working in the Office,we should be good at analyzing the essence of things,to find regular thing,change from passive to active,to seek one.Investee 2.establishment of evaluation system.Evaluation system is essentially an incentive mechanism,the evaluation was objective and fair,reasonable,and can stimulate a persons energy,mobilizing peoples enthusiasm or be misleading,dampened the enthusiasm of people.At present,the concept of people-oriented people,but to establish and perfect evaluation system is still lagging behind.Work in this area should be seriously caught up.Three emphasis on to take advantage of.Is a focus on standards and scientific.A fundamental point of the evaluation criteria,is to keep contact,development,comprehensive eye evaluation of cadres.Office work,both record and potential performance;both subjective efforts,take another look at the objective condition;both pragmatic enough,take another look at the retreat level.Second,focus on participating the breadth of the subject.Evaluation of cadres must give full play to democracy,cadres and the masses handing over evaluation.Office work services leadership and service base,serve the people,then nominated the main object will contain a variety of services,so that assessment was accurat