最新1初一上册数学期末考试题难题12优秀名师资料.docx
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最新1初一上册数学期末考试题难题12优秀名师资料.docx
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最新1初一上册数学期末考试题难题12优秀名师资料
1初一上册数学期末考试题(难题)12
数学试卷一、精心选一选(每小题3分,共30分)
11(,的相反数是()2
11A(2B(,2C(D(,22
2(下列式子正确的是()
11A(,0.1,,0.01B(—1,0C(,D(,5,323
3(沿图1中虚线旋转一周,能围成的几何体是下面几何体中的()
ABCD图1
24(多项式是()xy,xy,1
A(二次二项式B(二次三项式C(三次二项式D(三次三项式5(桌上放着一个茶壶,4个同学从各自的方向观察,请指出图3右边的四幅图,从左至右
分别是由哪个同学看到的()
图3
A(?
?
?
?
B(?
?
?
?
C(?
?
?
?
D(?
?
?
?
ba,ba6(数,在数轴上的位置如图2所示,则是()
A(正数B(零
C(负数D(都有可能图27(每天供给地球光和热的太阳与我们的距离非常遥远,它距地球的距离约为15000000
千米,将150000000千米用科学记数法表示为()
9877A(0.15×千米B(1.5×千米C(15×千米D(1.5×千米10101010
andpumpinstallationengineeringconstructionandacceptancespecificationforlifting6HG20201-2000constructioninstallationengineeringconstructionstandard7,HG...Pressuregauges,usinganinstalledsparkarrestorforacetylenecylinders,illegalcarrying,usinggascylinders,eachoperatorfined20Yuan.Gasbottlewithoutthehotsunexposuremeasures,responsibilitiesofteamafineof50Yuan.(7)atheightandtheopeningandprovisionalprotectivemeasureshavebeentaken,theresponsibleunitfined200Yuan,constructionpersoninchargeafineof50Yuan.(8)nopermittoworkandthejobinaccordancewiththeprovisions,onthejobunitfined300yuan,theunitwillchargeafineof100Yuan.7.5.3accidentpenalties
(1)injuriesfatalitiesdirectlypunished1~2million.Directresponsibilityfortheaccidentandhavethecorrespondingresponsibilityofleadership,suchasconcerningadministrativesanctions,shouldbebroughttothecompanyortherelevantDepartment.
(2)personalinjuryaccidentoccurred,thedirectpunishment0.5-10,000yuan,responsibleforthedirectresponsibilityfortheaccidentandtheresponsibilityofleadership,suchasconcerningadministrativesanctionsshouldbedealtwithbythepersonnelDepartmentofthecompany.(3)personalinjuryaccidentoccurs,thedirectpunishment500-1000,whoisdirectlyresponsiblefortheaccidentresponsibility,givenoticeofcriticismand50-100economicsanctionsagainstthem.(4)toconcealtheaccident,reportedwithoutunduedelayorfalse,toinformtheadministrativeleadershipofthecriticism,resultinginseriousconsequences,thepursuitofleadership,alongwith500-1000punishment.(5)significantnearmissshouldbeattemptedasthecaseofresponsiblefortheaccidentandconstructionteaminjuriesaccidentpenaltyprovisions,mutatismutandis.Eight,shouldperformintheconstruction
8(图5是某市一天的温度变化曲线图,通过该图可知,下列说法错误的是()
温度/?
A(这天15点时的温度最高38B(这天3点时的温度最低3430C(这天最高温度与最低温度的差是13?
26D(这天21点时的温度是30?
221518212436912时间/时
图5
9(一个正方体的侧面展开图如图4所示,用它围成的正方体只可能是()
OOOO
ACDB
图4
10(已知4个矿泉水空瓶可以换矿泉水一瓶,现有16个矿泉水空瓶,若不交钱,最多可
以喝矿泉水()
A(3瓶B(4瓶C(5瓶D(6瓶
二、细心填一填(每空3分,共15分)
2xy,11(的系数是。
5
12(某公园的成人单价是10元,儿童单价是4元。
某旅行团有a名成人和b名儿童;则
旅行团的门票费用总和为元。
2ab,113(已知(a,1),|b,2|,0,则的值等于。
14(一根1米长的绳子,第一次剪去一半,第二次剪去剩下的一半,如此剪下去,第四次
后剩下的绳子的长度是米。
C
15(如图,点A、O、B在一条直线上,且?
AOC=50?
,D
OD平分?
AOC、,则图中?
BOD=度。
OA三、对号入座(6分)B16(
(1)把下列各整式填入相应的圈里:
122xab,c,2m,ax,c,,abc,a,0,,,y,2(2
-thedirectpunishment500curs,ingadministrativesanctionsshouldbedealtwithbythepersonnelDepartmentofthecompany.(3)personalinjuryaccidentoc10,000yuan,responsibleforthedirectresponsibilityfortheaccidentandtheresponsibilityofleadership,suchasconcern-nt0.5ions,shouldbebroughttothecompanyortherelevantDepartment.
(2)personalinjuryaccidentoccurred,thedirectpunishmeponsibilityfortheaccidentandhavethecorrespondingresponsibilityofleadership,suchasconcerningadministrativesanctctrestheunitwillchargeafineof100Yuan.7.5.3accidentpenalties
(1)injuriesfatalitiesdirectlypunished1~2million.Direargeafineof50Yuan.(8)nopermittoworkandthejobinaccordancewiththeprovisions,onthejobunitfined300yuan,inchandtheopeningandprovisionalprotectivemeasureshavebeentaken,theresponsibleunitfined200Yuan,constructionpersonrfined20Yuan.Gasbottlewithoutthehotsunexposuremeasures,responsibilitiesofteamafineof50Yuan.(7)atheightforacetylenecylinders,illegalcarrying,usinggascylinders,eachoperato2000constructioninstallationengineeringconstructionstandard7,HG...Pressuregauges,usinganinstalledsparkarrestor-onandacceptancespecificationforlifting6HG20201andpumpinstallationengineeringconstructientpenaltyprovisions,mutatismutandis.Eight,shouldperformintheconstructionnteaminjuriesaccid1000punishment.(5)significantnearmissshouldbeattemptedasthecaseofresponsiblefortheaccidentandconstructio-iveleadershipofthecriticism,resultinginseriousconsequences,thepursuitofleadership,alongwith500strat100economicsanctionsagainstthem.(4)toconcealtheaccident,reportedwithoutunduedelayorfalse,toinformtheadmini-1000,whoisdirectlyresponsiblefortheaccidentresponsibility,givenoticeofcriticismand502
多项式单项式
(2)把能用一副三角尺直接画出(或利用其角的加减可画出)的角的度数从左边框内挑出写入右边框内(
15?
,20?
,50?
,75?
105?
,120?
,150?
(
四、认真算一算
511217(计算(,),,(,),17225
2218(先化简,再求值:
其中a=,2。
(4a,3a),(1,4a,4a)
19(已知:
线段AB=6厘米,点C是AB的中点,点D在AC的中点,求线段BD的长。
BACD
五、把道理说明白
20(知识是用来为人类服务的,我们应该把它们用于有意义的方(下面就两个情景请你作
出评判(
情景一:
从教室到图书馆,总有少数同学不走人行道而横穿草坪,这是为什么呢,试
用所学数学知识来说明这个问题。
教
学草坪楼
图书馆andpumpinstallationengineeringconstructionandacceptancespecificationforlifting6HG20201-2000constructioninstallationengineeringconstructionstandard7,HG...Pressuregauges,usinganinstalledsparkarrestorforacetylenecylinders,illegalcarrying,usinggascylinders,eachoperatorfined20Yuan.Gasbottlewithoutthehotsunexposuremeasures,responsibilitiesofteamafineof50Yuan.(7)atheightandtheopeningandprovisionalprotectivemeasureshavebeentaken,theresponsibleunitfined200Yuan,constructionpersoninchargeafineof50Yuan.(8)nopermittoworkandthejobinaccordancewiththeprovisions,onthejobunitfined300yuan,theunitwillchargeafineof100Yuan.7.5.3accidentpenalties
(1)injuriesfatalitiesdirectlypunished1~2million.Directresponsibilityfortheaccidentandhavethecorrespondingresponsibilityofleadership,suchasconcerningadministrativesanctions,shouldbebroughttothecompanyortherelevantDepartment.
(2)personalinjuryaccidentoccurred,thedirectpunishment0.5-10,000yuan,responsibleforthedirectresponsibilityfortheaccidentandtheresponsibilityofleadership,suchasconcerningadministrativesanctionsshouldbedealtwithbythepersonnelDepartmentofthecompany.(3)personalinjuryaccidentoccurs,thedirectpunishment500-1000,whoisdirectlyresponsiblefortheaccidentresponsibility,givenoticeofcriticismand50-100economicsanctionsagainstthem.(4)toconcealtheaccident,reportedwithoutunduedelayorfalse,toinformtheadministrativeleadershipofthecriticism,resultinginseriousconsequences,thepursuitofleadership,alongwith500-1000punishment.(5)significantnearmissshouldbeattemptedasthecaseofresponsiblefortheaccidentandconstructionteaminjuriesaccidentpenaltyprovisions,mutatismutandis.Eight,shouldperformintheconstruction
情景二:
A、B是河流l两旁的两个村庄,现要在河边修一个抽水站向两村供水,问抽水站修在什么地方才能使所需的管道最短,请在图中表示出抽水站点P的位置,并说明你的理由:
A
l
B
你赞同以上哪种做法,你认为应用数学知识为人类服务时应注意什么,
21(小明有一张地图,上面有A、B、C三地,但被墨迹污染,C地具体位置看不清楚了,
但知道C地在A地的北偏东30?
,在B地的南偏东45?
,请你在图中画一画,试着
帮他确定C地在地图上的位置。
北
B
东
A
-iveleadershipofthecriticism,resultinginseriousconsequences,thepursuitofleadership,alongwith500strat100economicsanctionsagainstthem.(4)toconcealtheaccident,reportedwithoutunduedelayorfalse,toinformtheadmini-1000,whoisdirectlyresponsiblefortheaccidentresponsibility,givenoticeofcriticismand50-thedirectpunishment500curs,ingadministrativesanctionsshouldbedealtwithbythepersonnelDepartmentofthecompany.(3)personalinjuryaccidentoc10,000yuan,responsibleforthedirectresponsibilityfortheaccidentandtheresponsibilityofleadership,suchasconcern-nt0.5ions,shouldbebroughttothecompanyortherelevantDepartment.
(2)personalinjuryaccidentoccurred,thedirectpunishmeponsibilityfortheaccidentandhavethecorrespondingresponsibilityofleadership,suchasconcerningadministrativesanctctrestheunitwillchargeafineof100Yuan.7.5.3accidentpenalties
(1)injuriesfatalitiesdirectlypunished1~2million.Direargeafineof50Yuan.(8)nopermittoworkandthejobinaccordancewiththeprovisions,onthejobunitfined300yuan,inchandtheopeningandprovisionalprotectivemeasureshavebeentaken,theresponsibleunitfined200Yuan,constructionpersonrfined20Yuan.Gasbottlewithoutthehotsunexposuremeasures,responsibilitiesofteamafineof50Yuan.(7)atheightforacetylenecylinders,illegalcarrying,usinggascylinders,eachoperato2000constructioninstallationengineeringconstructionstandard7,HG...Pressuregauges,usinganinstalledsparkarrestor-onandacceptancespecificationforlifting6HG20201andpumpinstallationengineeringconstructientpenaltyprovisions,mutatismutandis.Eight,shouldperformintheconstructionnteaminjuriesaccid1000punishment.(5)significantnearmissshouldbeattemptedasthecaseofresponsiblefortheaccidentandconstructio4
六、规律探究(6分)
22(下面有8个算式,排成4行2列
2,2,2×2
333,,3×22
444,,4×33
555,,5×44
……,……
(1)同一行中两个算式的结果怎样,
20052005
(2)算式2005,和2005×的结果相等吗,20042004
(3)请你试写出算式,试一试,再探索其规律,并用含自然n的代数式表示这一规律。
七、(23题5分,24题6分,共11分)
23(有一天,某检察院接到报案,称某厂厂长提了五千万元现金,装在一个小手提箱里,
准备潜逃,检察官们经过分析,认为这是不可能的,后经调查,确实有人报了假案。
从数学的角度看,你知道这是为什么不可能的吗,
小常识:
一张100元人民币常约为15.5cm,宽约为7.7聪明,100张100元的人民币
的厚度约为0.9cm。
andpumpinstallationengineeringconstructionandacceptancespecificationforlifting6HG20201-2000constructioninstallationengineeringconstructionsta
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