[首发]上海市浦东新区2017-2018学年六年级(五四学制)下学期期末考试语文试题(图片版)
2017-2018学年度第二学期沪教版六年级期末考试数学试卷
18.(本题4分)如图,已知∠AOC=90°,直线BD过点O,∠COD=115°,则∠AOB=________.
评卷人
得分
三、解答题(计58分)
19.(本题8分)解不等式组: ,并把解集在数轴上表示出来.
20.(本题8分)解方程: .
21.(本题8分)解下列不等式 ,并在数轴上表示其解集.
A. B.
C. D.
8.(本题3分)以下所给的数值中,为不等式-2x+ 3<0的解的是().
A.-2B.-1C. D.2
9.(本题3分)下列各图中,∠1大于∠2的是( )
A. B. C. D.
10.(本题3分)如果一个角的补角是150°,那么这个角的余角的度数是()
A.30°B.120°C.90°D.60°
4.(本题3分)不等式组 的解集在数轴上表示正确的是( )
5.(本题3分)如果a>b,那么下列结论中错误的是( )
A.a-3>b-3B.3a>3b
C. > D.-a>-b
6.(本题3分)解不等式组 的所有整数解有( )
A.6个B.7个C.8个D.9个
7.(本题3分)在 九章算术 中有“盈不足术”的问题,原文如下:今有共买物,人出八,盈三;人出七,不足四 问人数几何?大意为:现有一些人共同买一个物品,每人出8元,还盈余3元;每人出7元,则还差4元 问人数是多少?若设人数为x,则下列关于x的方程符合题意的是
详解: ,
由பைடு நூலகம்得,x>-3,
由②得,x≤2,
故不等式组的解集为:-3<x≤2,
在数轴上表示为: .
故选A.
点睛:本题考查的是解一元一次不等式组,熟知“同大取大;同小取小;大小小大中间找;大大小小找不到”的原则是解答本题的关键.
上海市上海市牛津上海版(深圳用)2017-2018学年小学英语六年级下册期末测试卷(一)及参考答案
13. Joe sometimes fishing with his father. A . go B . going C . goes 14. In the future,our school will different. A . be B . is C . are 15. They all praised her her hard work. A . at B . for C . by 16. Some stories are I like "The wind and the sun“. A . plastic B . well-known C . lazy 17. Miss Wang is the books on the desk. A . puts B . put C . putting 18. There are al ot of houses gardens in the countryside. A . in B . with C . for 19. I am good singing but I can't swim. A . at B . for C . in 20. We don't need wishes. A . any B . a C . some 21. What you do yesterday evening? A . do B . did C . doing 22. What changes you like to see in the-world? A . will B . can C . would
(1) Mr Brown lives in the with his wife. (2) He works days a week in his small office. (3) He work in the garden on Saturdays and Sundays. (4) Mrs White likes very much. (5) Mr White and his wife live
2017-2018学年上海市浦东新区六年级(下)期末数学试卷(附解析)
2017-2018学年上海市浦东新区六年级(下)期末数学试卷一、选择题(本大题共6题,每小题3分,满分18分)(每题只有一个选项正确)1.如果a与﹣2互为倒数,那么a是()A.﹣2B.﹣C.D.22.13世纪数学家斐波那契的《计算书》中有这样一个问题:“在罗马有7位老妇人,每人赶着7头毛驴,每头驴驮着7只口袋,每只口袋里装着7个面包,每个面包附有7把餐刀,每把餐刀有7只刀鞘”,则刀鞘数为()A.42B.49C.76D.773.在如图的2018年6月份的月历表中,任意框出表中竖列上三个相邻的数,这三个数的和不可能是()A.72B.69C.51D.274.如图数轴的A、B、C三点所表示的数分别为a、b、c.若|a﹣b|=3,|b﹣c|=5,且原点O与A、B的距离分别为4、1,则关于O的位置,下列叙述何者正确?()A.在A的左边B.介于A、B之间C.介于B、C之间D.在C的右边5.下列说法中,正确的是()A.长方体中任何一个面都与两个面平行B.长方体中任何一个面都与两个面垂直C.长方体中与一条棱平行的面只有一个D.长方体中与一条棱垂直的平面有两个6.用一副(两块)三角尺按照不同位置摆放,在下列摆放方式中,一定能确定∠α与∠β互余的是()A.B.C.D.二、填空题(本大题共12题,每小题2分,满分24分)7.的相反数是.8.计算:(﹣1.2)﹣2=.9.比较大小:如果a<b,那么2﹣3a2﹣3b.(填“>”“<”或“=”)10.月球的直径约为3476000米,将数据3476000用科学记数法表示应为.11.将方程3x﹣2y=25变形为用含x的式子表示y是.12.在线段AB延长线上截取BC=2AB,分别取AB、BC的中点,分别记为点M、N,如果AB=2,那么MN=.13.如图是用量角器测量角度的结果,如果∠AOB=∠COD,那么∠AOD的度数是.14.已知∠α与∠β互补,∠α=41°25′,那么∠β=(结果用度、分、秒表示).15.如果甲地在乙地的北偏西40°方向,那么乙地在甲地的方向.16.在长方体ABCD﹣EFGH中,与棱AB和棱AD都异面的棱是.17.如果一根24米的铁丝剪开后刚好能搭成一个长方体框架模型,这个长方体的长、宽、高的长度均为整数米,且互不相等,那么这个长方体的体积是 立方米.18.小华用两组数分别记录某地区5月份31天中实际下雨和天气预报下雨的情况:例如天气预报5日下雨,实际没雨,那么b 5=1,a 5=﹣1.记录完毕后,小华经过计算,得出a 1b 1+a 2b 2+a 3b3+…+a 31b31=23,那么该月气象台预报准确的总天数是 .三、简答题(本大题共6题,每小题6分,满分36分) 19.(6分)计算:(﹣2)×(﹣)﹣(﹣2)2×5÷8. 20.(6分)解方程:=﹣2.21.(6分)解不等式:5(x ﹣9)≥15﹣6(x ﹣1). 22.(6分)解不等式组:,并把它的解集在数轴上表示出来.23.(6分)解方程组:24.(6分)解方程组:四、作图题(本大题6分)25.(6分)线段AB与射线AP有一公共端点A.(1)用直尺和圆规作出∠BAP的角平分线AC.(不写作图方法)(2)用圆规在射线AP上截取线段AD=AB,联结BD.(3)用直尺和圆规在BD右侧作出以点B为顶点的∠DBQ,使∠DBQ=∠BDA,且BQ与AC相交于点E.(不写作图方法)(4)你认为线段AB和BE的大小关系如何?五、解答题(本大题共2题,26题7分,勾题9分,满分16分)26.(7分)某数学兴趣小组研究我国古代《算法统宗》里这样一首诗:我问开店李三公,众客都来到店中,一房七客多七客,一房九客一房空.诗中后两句的意思是:如果每一间客房住7人,那么有7人无房可住;如果每一间客房住9人,那么就空出一间房.(1)求该店有客房多少间?房客多少人?(2)假设店主李三公将客房进行改造后,房间数大大增加.每间客房收费20钱,且每间客房最多入住4人,一次性订客房18间以上(含18间),房费按8折优惠.若诗中“众客”再次一起入住,他们如何订房更合算?27.(9分)小明,小华和小红准备用透明胶和硬纸板制作一些长方体纸盒,现在需要你的帮忙:(1)制作前,要画出长方体纸盒的直观图,小明只画了一部分(如图1),请你帮他画完整(不写画法);(2)制作时,需要裁剪一块长方形的硬纸板,小华经过设计发现正好将这块硬纸板全部用完(如图2),请你求出长方体的长a、宽b和高c;(3)设计后,小红对制作费用进行了估算,小华的设计方案所需要的硬纸板的价格是每块5元,另外还有一种只有大小不同的硬纸板,价格是每块3元,小红根据小华的设计尺寸也进行了设计(如图3),发现另一种硬纸板也可以用来制作尺寸相同的长方体纸盒.同时,经过计算发现,如果用相同的制作费且把材料用足,那么选用小红的设计比选用小华的设计恰好可以多制作一个纸盒.请问,小红的设计可以制作出几个纸盒?参考答案一、选择题1.【解答】解:∵a与﹣2互为倒数,∴a是﹣.故选:B.2.【解答】解:依题意有,刀鞘数为76.故选:C.3.【解答】解:设三个数中间的一个数为x,则另外两个数分别为x﹣7、x+7,根据题意得:(x﹣7)+x+(x+7)=72或(x﹣7)+x+(x+7)=69或(x﹣7)+x+(x+7)=51或(x﹣7)+x+(x+7)=27,解得:x=24或x=23或x=17或x=9,又∵x+7=31不合适,∴这三个数的和不可能是72.故选:A.4.【解答】解:∵|a﹣b|=3,|b﹣c|=5,∴b=a+3,c=b+5,∵原点O与A、B的距离分别为4、1,∴a=±4,b=±1,∵b=a+3,∴a=﹣4,b=﹣1,∵c=b+5,∴c=4.∴点O介于B、C点之间.故选:C.5.【解答】解:A、长方体中任何一个面都与1个面平行,故此选项错误;B、长方体中任何一个面都与4个面垂直,故此选项错误;C、长方体中与一条棱平行的面有2个,故此选项错误;D、长方体中与一条棱垂直的平面有两个,正确.故选:D.6.【解答】解:A、图中∠α=∠β,不一定互余,故本选项错误;B、图中∠α+∠β=180°﹣45°+180°﹣45°=270°,不是互余关系,故本选项错误;C、图中∠α+∠β=180°﹣90°=90°,∠α与∠β互余,故本选项正确;D、图中∠α+∠β=180°,互为补角,故本选项错误;故选:C.二、填空题(本大题共12题,每小题2分,满分24分)7.【解答】解:的相反数是﹣()=.8.【解答】解:原式=﹣1.2﹣2.125=﹣3.325.故答案为:﹣3.325.9.【解答】解:∵a<b,∴﹣3a>﹣3b∴2﹣3a>2﹣3b.故答案为:>10.【解答】解:将数据3476000用科学记数法表示应为3.476×106,故答案为:3.476×106.11.【解答】解:3x﹣2y=25,﹣2y=25﹣3x,y=,故答案为:y=,12.【解答】解:如图:∵BC=2AB,AB=2,∴BC=4,∵M、N分别是AB、BC的中点,∴BM=1,BN=2,∴MN=BM+BN=1+2=3.故答案为:3.13.【解答】解:由图可得,∠AOC=55°,∠BOC=30°,∴∠AOB=25°,又∵∠AOB=∠COD,∴∠COD=25°,∴∠AOD=55°+25°=80°,故答案为:80°.14.【解答】解:∵∠α与∠β互补,∴∠β=180°﹣∠α=180°﹣41°25′=138°35′.故答案为:138°35′15.【解答】解:由题意可知∠1=40°,∵AB∥CD,∴∠1=∠2,由方向角的概念可知乙在甲的南偏东40°.故答案为:南偏东40°.16.【解答】解:在长方体ABCD﹣EFGH中,与棱AB和棱AD都异面的棱是棱GC.故答案为:棱GC.17.【解答】解:设该长方体的长、宽、高别为a、b、c(a>b>c),则4(a+b+c)=24,所以a+b+c=6.因为这个长方体的长、宽、高的长度均为整数米,且互不相等,所以该长方体的长、宽、高的长度分别为:3、2、1.所以其体积=3×2×1=6.故答案是:6.18.【解答】解:设该月气象台预报准确的总天数是x天,那么预报不准确的总天数是(31﹣x)天,∵预报准确时可能a=1,b=1,也可能a=﹣1,b=﹣1,此时ab=1,预报不准确时可能a=1,b=﹣1,也可能a=﹣1,b=1,此时ab=﹣1,又a1b1+a2b2+a3b3+…+a31b31=23,∴x﹣(31﹣x)=23,解得x=27.故答案为27.三、简答题(本大题共6题,每小题6分,满分36分)19.【解答】解:(﹣2)×(﹣)﹣(﹣2)2×5÷8=(﹣2)×﹣4×5×=﹣﹣=﹣.20.【解答】解:去分母得:5x=3(3x﹣4)﹣48,去括号得:5x=9x﹣12﹣48,移项合并得:﹣4x=﹣60,解得:x=15.21.【解答】解:去括号得,5x﹣45≥15﹣6x+6,移项得,5x+6x≥15+6+45,合并同类项得,11x≥66,化系数为1得,x≥6.故此不等式的解集为:x≥6.22.【解答】解:解不等式①得:x<2,解不等式②得:x>﹣1,因此原不等式组的解集为:﹣1<x<2.它的解集在数轴上表示为:23.【解答】解:①+②得:9x﹣33=0x=把x=代入①,得y=∴方程组的解是24.【解答】解:由①+②+③得,x+y+z=3④④﹣①,得z=﹣2④﹣②,得x=5,④﹣③,得y=0∴方程组的解是四、作图题(本大题6分)25.【解答】解:(1)作∠BAP的角平分线AC;(2)作AD=AB,连接BD;(1分)(3)作∠DBQ=∠BDA,且BQ与AC相交于点E;(4)AB=BE,理由是:∵AC平分∠BAP,∴∠BAC=∠PAC,∵BQ∥AP,∴∠PAC=∠BEA,∴∠BEA=∠BAC,∴AB=BE.(1分)五、解答题(本大题共2题,26题7分,勾题9分,满分16分)26.【解答】解:(1)设该店有客房x间,房客y人;根据题意得:,解得:.答:该店有客房8间,房客63人;(2)若每间客房住4人,则63名客人至少需客房16间,需付费20×16=320钱;若一次性订客房18间,则需付费20×18×0.8=288钱<320钱;答:诗中“众客”再次一起入住,他们应选择一次性订房18间更合算.27.【解答】解:(1)(2)根据题意可得:解得:c=18,a=6,b=9(3)设小红做x个完整的长方体纸盒,小华做(x﹣1)个完整的长方体纸盒,根据题意得:4.5x=5(x﹣1)解得:x=10答:小红做10个完整的长方体纸盒.。
15 2017-2018学年上海市浦东新区六年级(下)期末数学试_20200506190440
A.
B.
C.
D.
二、填空题(本大题共 12 小题,共 24.0 分)
.
的相反数是______.
3
8. 计算: 1.
1 ⣍______.
8
9. 比较大小:如果 舨 ,那么 3 ______ 3 . 填“ ”“舨”或“⣍” 10. 月球的直径约为 3476000 米,将数据 3476000 用科学记数法表示应为______. 11. 将方程 3 ݕ⣍ 变形为用含 x 的式子表示 y 是______. 1 . 在线段 AB 延长线上截取 ⣍ ꀀ ,分别取 AB、BC 的中点,分别记为点 M、N,如果 ꀀ ⣍ ,那
么 舨 ⣍______. 13. 如图是用量角器测量角度的结果,如果 ꀀ舨 ⣍ 舨⣍,那么 ꀀ舨⣍ 的度数是______.
14. 已知 与 互补, ⣍ 41 ,那么 ⣍______ 结果用度、分、秒表示 . 1 . 如果甲地在乙地的北偏西 40 方向,那么乙地在甲地的______方向. 1 . 在长方体 ꀀ ⣍ 膈⣍ 中,与棱 AB 和棱 AD 都异面的棱是______.
当第 k 天下过雨时,记 ⣍ 1;
当预报第 k 天下雨时,记 ⣍ 1;
Байду номын сангаас
当第 k 天没下雨时,记 ⣍ 1 1
31 , 当预报第 k 天没雨时,记 ⣍ 1 1
31
例如天气预报 5 日下雨,实际没雨,那么 ⣍ 1, ⣍ 1.记录完毕后,小华经过计算,得出 1 1
33
31 31 ⣍ 3,那么该月气象台预报准确的总天数是______.
则刀鞘数为
A. 42
B. 49
C.
D.
3. 在如图的 2018 年 6 月份的月历表中,任意框出表中竖列上三个相邻的数,这三个数的和不可能是
2017年上海浦东新区六年级第二学期期末语文卷
浦东新区2016学年度第二学期期末教学质量检测六年级语文(满分:100分,考试时间:100分钟)一、积累与运用(20分)(一)名句默写(10分)1.随风潜入夜,。
(《春夜喜雨》)2. ,清泉石上流。
(《山居秋暝》)3.浮云游子意,。
(《送友人》)4. ,自缘身在最高层。
(《登飞来峰》)5.红树青山日欲斜,。
(《丰乐亭游春》)(二)基础知识运用(8分)6.请认真工整地抄写下列句子,并将句中的拼音写成汉字。
(3分)呼朋引伴地卖弄清脆的喉咙,唱出wǎn zhuǎn的曲子,与轻风流水yìng hè着。
_______________________________________________________________________________7.下列分析错误..的一项是()(1分)A.“小草偷偷地从土里钻出来,嫩嫩的,绿绿的。
”运用倒装的语序、反复叹唱的语调以及短句等形式,突出小草富有生机,给人欣喜的美感,也表现了作者的喜爱之情。
B.“统筹方法,是一种……数学方法。
”“如何应用呢?”“比如……”“办法甲……”先用解释性的语句,然后用过渡句、关联词,条理清楚而又具体地介绍了统筹方法的概念。
C.“全长5082米,两端宽96米,中部略窄,宽9米。
”中的具体数字与加点词语组合在一起,非常精确地说明了赵州桥的大小、规模,从中也可以看出作者严谨的科学态度。
D.“室内装饰美妙绝伦,巧夺天工”中划线词语是褒义词,作者用这样的词语来描述和形容,展现了布鲁塞尔市政厅的美丽,也流露出作者的喜爱、赞美的情感。
8.下列选项中表现的内容正确..的一项是()(1分)A.《羚羊木雕》有很多篇幅是人物对话,“我的奶奶”和“万芳的奶奶”是次要人物,话语很少。
对表现主要人物、作者情感表达起不了重要作用。
B.“在那颗星子下”与“——中学时代的一件事”是文章的正副标题。
点明了作者在讲述故事时,用插叙的方式将“星子”与“中学时代”勾连到一起。
上海市浦东新区第一教育署2017-2018学年六年级数学下学期期中阶段质量调研试题 沪教版五四制
上海市浦东新区第一教育署2017-2018学年六年级数学下学期期中阶段质量调研试题(完卷时间:90分钟 满分:100分)一、 选择题:(本大题共6题,每题3分,满分18分)1.下列语句正确的个数是………………………………………………( ) ① 整数和分数统称为有理数; ② 任何有理数都有相反数; ③ 任何有理数都有倒数;④ 任何有理数的绝对值都是非负数. (A )1个;(B )2个;(C )3个;(D )4个.2.在%314,53,2,6.7,65.0,0,51.0,23.031515----,,这十个数中,非负数有………………………………………………………( ) (A )4个 (B )5个 (C )6个 (D )7个 3.下列各式中,是一元一次方程的是…………………………………( ) (A )27x + (B )25x y -= (C )24x = (D )()2134x x --=-4.下列方程在变形过程中正确的是……………………………………( ) (A )由2,631==x x 得 (B )由1,132=--=x x x 得(C )由2453,4532--=---=-y y y y 得 (D )由234x x=-,得432x x =- 5.甲班有54人,乙班有48人,要使甲班人数是乙班的2倍,设从乙班调往甲班的人数为x ,可列方程………………………………………( )(A )()54248+=-x x ; (B )()48254+=-x x ; (C )54248-=⨯x ; (D )48254+=⨯x .6.如果x y ≤,那么下列结论中正确的是……………………………( ) (A )44x y≥; (B ) 2121x y -+≥-+ (C )22x y -≥+; (D )22x y -≤-二、 填空题:(本大题共14题,每题2分,满分28分)7. 一个物体可以左右移动,设向右为正,则向左移动8米记作 .8.如图,点A ,B 在数轴上,且A 与B 的距离是5,点A 对应的数为335,则点B 所对应的数为. 9.145-的倒数是_______________. 10.用“<”号连接:112-,()2.5--,143--:11.计算:4112⎛⎫-- ⎪⎝⎭=____________.12.上海冬天某两天的天气温度情况如下表所示:这两天中,第_______天的温差较大.13.y 的3倍与2的差是非负数,用不等式表示是_____________.14.现今世界上较先进的计算机显卡每秒可绘制出27000000个三角形,且显示逼真,用科学记数法表示这种显卡每秒绘制出三角形__________个15.若3x =是方程2(3)5x a x ++=+的解,则a = . 16.已知0)5(12=++-b a,则2ab =_______________________. 17.整数0 (填“是”或“不是”)不等式x x1243+≤-的解. 18.由545x x =+得545x x -=,在此变形中,方程两边同时加上了 .19. 小杰将今年春节收到的2500元压岁钱的80%存入银行,存期一年到期后得到2050元,那么这项储蓄的年利率是 .第8题图20. 将一张厚度均匀的纸反复对折,对折3次后,折成的纸的厚度为10mm ,如果要使折成的厚度为40mm ,那么对折的次数为 次.三、简答题:(本大题共6题,每题5分,满分30分) 21.计算:22)31(1853-⨯--+-22.计算:5117 1.25101544⎛⎫⨯-+⨯-⨯ ⎪⎝⎭23.解方程:53221+-=--y y y24.解方程:15%25%21% 1.25x x -=+25.解不等式131223--≥-y y ,并把解集在数轴上表示出来.26.列式计算:求使+1143x +的值不小于316x -的值的非负整数x .四、 解答题:(本大题共3题,第27题8分,第28题6分,第29题6分,满分20分) 27.小明已经完成流程图的计算并填入了正确的答案52,但是他不小心把一滴墨水滴在了上面,请你帮小明求出被墨水污染的那个数.O12-1-23-35228.某公路收费站的收费标准是大客车20元,大货车 10 元,轿车5 元,某天通过收费站的这三种车辆的数量之比是 5:7:6,共收费4.8 万元,问这天通过收费站的大货车是多少辆?29.轮船和汽车都往甲地开往乙地,海路比公路近40千米。
15 2017-2018学年上海市浦东新区六年级(下)期末数学试卷答案_20200506190439
【解析】解:如图:
,
,
,
、N 分别是 AB、BC 的中点,
1, 釈 ,
釈
轈 釈 1 轈 ⹉.
故答案为:3.
根据
,可求 BC,再根据中点的定义可求 BM,BN,再根据线段的和差关系即可求解.
本题考查了两点间的距离,解决本题的关键是根据图形进行解答.
第 ⹉页,共 7页
13.【答案】ඐ
【解析】解:由图可得, ㌳ ݔݔ, ㌳ ⹉ ,
根据题意得: 7ሻ 轈 轈 轈 7ሻ 7 或 7ሻ 轈 轈 轈 7ሻ
或 7ሻ 轈 轈 轈 7ሻ ݔ1 或
7ሻ 轈 轈 轈 7ሻ 7,
解得:
或
⹉ 或 17 或
,
又 轈 7 ⹉1 不合适,
这三个数的和不可能是 72.
故选:A.
设三个数中间的一个数为 x,则另外两个数分别为 7、 轈 7,根据三个是之和为四个选项中的数,即
㌳ ݔ,
又㌳
㌳ඐ,
㌳ඐ ݔ,
㌳ඐ ݔݔ轈 ݔඐ ,
故答案为:ඐ .
依据 ㌳ ݔݔ, ㌳ ⹉ ,可得 ㌳
ݔ,再根据 ㌳
㌳ඐ 的度数.
此题主要考查了角的计算,关键是理清角之间的和差关系.
14.【答案】1⹉ඐ ⹉ݔ
㌳ඐ,可得 ㌳ඐ ݔ,进而得出
【解析】解: 与 互补,
第 页,共 7页
此题主要考查了有理数的减法,关键是掌握有理数的减法法则.
9.【答案】
【解析】解: 釈 ,
⹉
⹉
⹉
⹉.
故答案为:
先利用不等式的性质 3,得到 ⹉ 与 ⹉ 的大小,再根据不等式的性质 1,得结论.
2017--2018学年度第二学期沪教版六年级期末考试数学备考试卷
绝密★启用前2017--2018学年度第二学期 沪教版六年级期末考试数学备考试卷一、单选题(计30分)1.(本题3分)在长春市2016年地铁建设中,某工程队挖掘土方为632000立方米,632000这个数用科学记数法表示为( )A. 63.2×104B. 6.32×105C. 0.632×106D. 6.32×106 2.(本题3分)下列各数中,比﹣3大1的数是( ) A. 4 B. 2 C. ﹣4 D. ﹣2 3.(本题3分)如图所示,数轴上表示绝对值大于3的数的点是( )A. 点EB. 点FC. 点MD. 点N 4.(本题3分)不等式组的解集在数轴上表示正确的是( ) A.B.C.D.5.(本题3分)下面四幅图中,用量角器测得∠AOB 度数是40°的图是( )A. B.C. D.6.(本题3分)在直线l 上顺次取A,B,C 三点,且线段AB=5cm ,BC=3cm ,那么A,C 两点间的距离是( )A. 8cmB. 2cmC. 2cm 或8cmD. 无法确定 7.(本题3分)如图,直线AB ,CD 相交于点O ,OE ⊥AB ,OF 平分∠AOD ,∠COE=28°.则∠DOF=( )A. 62°B. 59°C. 52°D. 69° 8.(本题3分)若,则的值为( )A.B.C. 0D. 49.(本题3分)下列图形不能围成正方体的是( )A. B. C. D.10.(本题3分)一个由小菱形组成的装饰链,断去了一部分,剩下部分如图所示,则断去部分的小菱形的个数可能是( )A. 6 个B. 7个C. 8个D. 9 个 二、填空题(计32分)11.(本题4分)不等式组的解集是 ___________. 12.(本题4分)如图,已知∠AOC =90°,直线BD 过点O ,∠COD =115°,则∠AOB =________.13.(本题4分)已知∠AOB=50°,以O 为端点作射线OC ,使∠BOC=30°,则∠AOC=____________.14.(本题4分)已知:,,,…,观察上面的计算过程,寻找规律并计算C 106=_____.15.(本题4分)如果()2120180m n ++-=,那么n m 的值为___________16.(本题4分)已知:,则 ______ .17.(本题4分)如图,直线AB ,CD 相交于点O ,OA 平分∠EOC ,∠EOD =120°,18.(本题4分)已知方程是二元一次方程,则 _________ .三、解答题19.(本题7分)计算:(1)4×(-3)2-5×(-2)+6; (2)-14-61×[3-(-3)2].20.(本题7分)解方程组21.(本题7分)解不等式组22.(本题7分)解不等式组请结合题意填空,完成本题的解答:(I )解不等式(1)_____; (Ⅱ)解不等式(2)_____;(Ⅲ)把不等式(1)和(2)的解集在数轴上表示出来: (Ⅳ)原不等式组的解集为_____.23.(本题7分)把一些图书分给某班学生阅读,如果每人分3本,则剩余20本;如果每人分4本,则还缺25本. (1)这个班有多少学生? (2)这批图书共有多少本?24.(本题7分)如图,直线AB ,CD 相交于O ,OE 是∠AOD 的平分线,∠AOC =28°, (1)写出图中所有与∠AOD 互补的角; (2)求∠DOE 的度数.25.(本题8分)一个角的补角比它的余角的4倍少,求这个角的度数.26.(本题8分)如图1,∠AOB=120°,∠COE=60°,OF 平分∠AOE (1)若∠COF=20°,则∠BOE=_____°(2)将∠COE 绕点O 旋转至如图2位置,求∠BOE 和∠COF 的数量关系(3)在(2)的条件下,在∠BOE 内部是否存在射线OD ,使∠DOF=3∠DOE ,且∠BOD=70°?若存在,求DOFCOF∠∠的值,若不存在,请说明理由.参考答案1.B【解析】【分析】科学记数法的表示形式为a×10n的形式,其中1≤|a|<10,n为整数.确定n 的值时,要看把原数变成a时,小数点移动了多少位,n的绝对值与小数点移动的位数相同.当原数绝对值>1时,n是正数;当原数的绝对值<1时,n是负数.【详解】632000将小数点向左移5位得到6.32,所以632000用科学记数法表示为:6.32×105,故选B.【点睛】本题考查科学记数法的表示方法.科学记数法的表示形式为a×10n的形式,其中1≤|a|<10,n为整数,表示时关键要正确确定a的值以及n的值.2.D【解析】【分析】根据有理数的加法的运算方法,用-3加上1,计算出结果即可.【详解】﹣3+1=﹣2,∴比﹣3大1的数是﹣2.故选D.【点睛】本题考查了有理数的加法,解答此题的关键是要熟记有理数的加法法则,无论应用加法法则中的哪一条都要牢记“先符号,后绝对值”.3.A【解析】分析:分别求出各数的绝对值,再进行比较即可.详解:|﹣3.5|=3.5,3,|﹣1|=1<3,|1.5|=1.5<3,|3|=3=3,所以数轴上表示绝对值大于3的数的点是点E,故选:A.点睛:本题考查了绝对值、数轴和有理数的大小比较,能熟记有理数的大小比较法则的内容是解此题的关键.4.B【解析】【分析】先求出不等式组中每一个不等式的解集,然后在数轴上表示出来即可得.【详解】,解不等式①得,x<2,解不等式②得,x≥-1,所以不等式组的解集是:-1≤x<2,在数轴上表示如图所示,故选B.【点睛】本题考查了解一元一次不等式组,以及在数轴上表示不等式组的解集,用数轴表示不等式的解集时,要注意“两定”:一是定界点,二是定方向.5.A【解析】分析:根据量角器量角的使用方法:把量角器放在角的上面,使量角器的中心与角的顶点重合,0刻度线与角的一条边重合,角的另一条边所指的量角器上的刻度就是这个角的度数.即:中心对顶点,零线对一边,它边数度数,内外要分清.详解:A.量角器所量角的度数是40°,故本选项正确;B.量角器使用方法错误,故本选项错误;C.量角器所量角的度数是140°,故本选项错误;D. 量角器使用方法错误,故本选项错误.故选A.点睛:本题考查量角器的使用方法.正确并熟练使用测量工具——量角器是解题的关键. 6.A【解析】【分析】根据题意画出图形,根据图形可知AC=AB+BC,从而即可求得AC的长.【详解】如图,A、B、C是直线l上顺次三点,所以,AC=AB+BC,因为AB=5cm,BC=3cm,所以,AC=5+3=8(cm),故选A.[Failed to download image : http://192.168.0.10:8086/QBM/2018/5/3/1937315075809280/1940872988934144/EXPLANATION/5 b57bad414b74efc953133e1fa8ae6ba.png]【点睛】在未画图类问题中,正确画图很重要.所以能画图的一定要画图这样才直观形象,便于思维.7.B【解析】分析:首先根据垂直和∠COE的度数得出∠BOC的度数,然后根据对顶角的性质得出∠AOD的度数,最后根据角平分线的性质得出答案.详解:∵OE⊥AB,∴∠BOE=90°,∵∠COE=28°,∴∠BOC=90°+28°=118°,∴∠AOD=∠BOC=118°,∵OF平分∠AOD,∴∠DOF=118°÷2=59°,故选B.点睛:本题主要考查的就是垂直的定义,对顶角的性质以及角平分线的性质,属于基础题型.解决这个问题的关键就是利用对顶角的性质求出∠AOD的度数.8.C【解析】【分析】根据非负数的性质可得x-1=0,y+2=0,解方程求得x、y的值代入计算即可.【详解】∵,|x-1|≥0,(y+2)2≥0,∴x-1=0,y+2=0,∴x=1,y=-2,∴2x+y=0,故选C.【点睛】本题考查了非负数的性质,熟知几个非负数的和为0,那么每一个非负数都为0是解题的关键.9.C【解析】A、B、D选项均可围成正方体,C选项折叠后有两个正方形重合.故选C.10.C【解析】观察图形,两个断开的水平菱形之间最小有2个竖的菱形,之后在此基础上每增加一个也可完整,即可以是2、5、8、11……故选C.点睛:探索规律的题型最关键的是找准规律.11.-2<x<2【解析】分析:先分别求解两个不等式的解集,然后利用不等式组解集的确定方法求出不等式组的解集即可.详解:解不等式①得x>-2解不等式②得x<2不等式组的解集为-2<x<2.故答案为:-2<x<2.点睛:此题主要考查了不等式组的解法,关键是合理利用不等式组的解集的确定方法判断其解集,判断解集的方法:都大取大,都小取小,大小小大取中间,大大小小无解. 12.25°【解析】分析:根据平角等于180°和∠COD=115°,求出∠BOC,再根据直角为90°,求出∠AOB的度数.详解:∵∠COD=115°,∴∠BOC=180°-115°=65°,∵∠AOC=90°,∴∠AOB=90°-65°=25°.故答案为:25°.点睛:本题考查了直角及平角的定义,需细心计算,比较简单.13.80°或20°【解析】【分析】根据题意可知射线OC可能在∠AOB内部,也可能在∠AOB外部,分两种情况分别画出图形,然后根据图形进行计算即可得.【详解】如图1,当OC在∠AOB内部时,∠AOC=∠AOB-∠BOC=50°-30°=20°,如图2,当OC在∠AOB内部时,∠AOC=∠AOB+∠BOC=50°+30°=80°,综上,∠AOC的度数为80°或20°,故答案为:80°或20°.[Failed to download image : http://192.168.0.10:8086/QBM/2018/5/3/1937315075809280/1940872989065216/EXPLANATION/5 3bb7652fd1f4290a349c9d2793cc908.png][Failed to download image : http://192.168.0.10:8086/QBM/2018/5/3/1937315075809280/1940872989065216/EXPLANATION/71730ea0ea1f4068a76613fbb140a95f.png]【点睛】本题考查了角的计算,属于基础题,解答本题的关键是能根据题意画出图形,分情况进行讨论.14.210【解析】试题解析:…;故答案为:15.1【解析】由题意得:m+1=0,n-2018=0,解得:m=-1,n=2018,所以m n=(-1)2018=1,故答案为:1.16.6【解析】【分析】根据方程组的特点,三个方程相加即可求出x+y+z的值.【详解】,(①+②+③)÷2,得x+y+z=6,故答案为:6.【点睛】本题考查了三元一次方程组的特殊解法,根据方程组中每一个方程的系数特点确定合适的解法是关键.17.30°【解析】分析:先利用补角的定义求出∠EOC=60°,再根据角平分线的性质计算.详解:∵∠EOD=120°,∴∠EOC=60°(邻补角定义).∵OA平分∠EOC,∴∠AOC=∠EOC=30°(角平分线定义),∴∠BOD=30°(对顶角相等).故答案为:30.点睛:由角平分线的定义,结合补角的性质,易求该角的度数.18.3【解析】【分析】根据二元一次方程的定义可得关于m、n的方程,解方程求得m、n的值,继而可得m-n的值.【详解】由题意得:m-3=1,2-n=1,解得:m=4,n=1,所以m-n=4-1=3,故答案为:3.【点睛】本题考查了二元一次方程的定义,即含有两个未知数,并且含有未知数的项的次数都是1,像这样的方程叫做二元一次方程.19.(1) 52;(2)0【解析】分析:(1)原式先计算乘方运算,再计算乘法运算,最后算加减运算即可得到结果;(2)原式先计算乘方运算,再计算乘法运算,最后算加减运算即可得到结果.详解:(1)原式=4×9+10+6= 36+10+6= 52.(2)原式=-1-×(3-9)=-1-×(-6)=-1+1= 0.点睛:此题考查了有理数的混合运算,熟练掌握运算法则是解本题的关键.20.【解析】分析:方程组利用加减消元法求出解即可;详解:①+②×2得:把x=3代入①得:解得:y=−1,则原方程组的解为点睛:本题主要考查二元一次方程组的解法,二元一次方程组的解法有两种:代入消元法和加减消元法,根据题目选择合适的方法.21.【解析】分析:先分别解两个不等式,求出它们的解集,再取两个不等式解集的公共部分.详解:解不等式①得,解不等式②得,∴不等式组解集为.点睛:本题考查了不等式组的解法,先分别解两个不等式,求出它们的解集,再求两个不等式解集的公共部分.不等式组解集的确定方法是:同大取大,同小取小,大小小大取中间,大大小小无解.22.x<2 x≥﹣4 ﹣4≤x<2【解析】分析:根据解不等式的基本步骤,分别解不等式填空即可得到不等式组的解集,然后表示在数轴上即可.详解:,(Ⅰ)解不等式①得:x<2,(Ⅱ)解不等式②得:x≥﹣4,(Ⅲ)把不等式①和②的解集在数轴上表示出来如图:(Ⅳ)原不等式组的解集为:﹣4≤x<2,点睛:此题主要考查了不等式组的解法,关键是利用不等式组解集的确定方法:都大取大,都小取小,大小小大取中间,大大小小无解,比较简单.23.(1)45 ;(2)155本.【解析】分析(1)设这个班有x名学生.根据这个班人数一定,可得:3x+20=4x-25,解方程即可;(2)代入方程的左边或右边的代数式即可.详解:(1)设这个班有x名学生.依题意有:3x+20=4x-25解得:x=45(2)3x+20=3×45+20=155答:这个班有45名学生,这批图书共有155本.点睛:解题关键是要读懂题目的意思,根据题目给出的条件,找出合适的等量关系,列出方程,再求解.24.(1)∠AOC,∠BOD;(2)76°.【解析】分析:根据补角的定义回答即可.直接利用平角的定义结合角平分线的定义分析得出答案.详解:,与互补的角有:∵∴∵OE平分∠AOD,∴点睛:考查了平角的定义,补角的定义,角平分线的性质,比较简单.掌握补角的定义和角平分线的性质是解题的关键.25.这个角的度数是.【解析】分析:设这个角为x,根据互为补角的两个角的和等于180°表示出它的补角,互为余角的两个两个角的和等于90°表示出它的余角,然后列方程求解即可.详解:设这个角为x,由题意得,,解得,答:这个角的度数是.点睛:本题主要考查了余角和补角,熟记概念并列出方程时解题的关键.26.40∠的度数,根据OF平分∠AOE得到【解析】试题分析:()1先求出E O F40AOF EOF ∠=∠=︒,进而求出80AOE ∠=︒,根据BOE AOB AOE ∠=∠-∠即可求得.()2根据2AOE EOF ∠=∠,得到()120260,BOE COF ︒-∠=︒-∠进而发现它们之间的规律.()3存在.试题解析:(1)6020COE COF ∠=︒∠=︒,,∴602040EOF ∠=︒-︒=︒,∵OF 平分∠AOE ,∴40AOF EOF ∠=∠=︒,∴80AOE ∠=︒,∴1208040BOE AOB AOE ∠=∠-∠=︒-︒=︒,故答案为:40;(2)∵2AOE EOF ∠=∠,∴()120260,BOE COF ︒-∠=︒-∠∴2BOE COF ∠=∠;(3)存在.理由如下:∵3DOF DOE ∠=∠,设3DOE DOF αα∠=∠=,,∴25EOF AOF AOD αα∠=∠=∠=,,∵120AOD BOD ∠+∠=︒,∴570120α+︒=︒,∴10α=︒,∴3040604020DOF AOE AOC ∠=︒∠=︒∠=︒︒=︒,,﹣,∴40COF ∠=︒,3.4DOF COF ∠∴=∠。
2018学年上海市六年级下期末英语试卷
2018学年市六年级下期末英语试卷根据音标填空(共4题,共 4 分)1.(1分)Tom, can you ____ /ti:tʃ/ me how to make a pizza?2.(1分)Kitty wants to ____ /ˈɪntəvju:/ Samuel Han to find out if he likes his job.3.(1分)____ /wen/ will we have a picnic, Mr Li?4.(1分)Dumplings are usually ____ /ˈfrəʊzn/ in the supermarket.单项选择(共15题,共 15 分)5.(1分)Look at the photo. We are playing ____ badminton together.A. aB. anC. theD. /6.(1分)— Look at the sign! What does it mean?— We must leave our bicycles ____ the left.A. inB. atC. onD. of7.(1分)James always shares his toys ____ his best friends.A. aroundB. atC. withD. for8.(1分)It took ____ one and a half hours to finish his homework last night.A. heB. himC. hisD. himself9.(1分)Jenny is as ____ as Lucy because both of them like sports every much.A. healthyB. healthierC. healthiestD. the healthiest10.(1分)There is only ____ bread in the fridge (冰箱). What about going out to buy some?A. a littleB. a fewC. plenty ofD. little11.(1分)— ____ does it take you to get to school, Jill?— About 25 minutes.A. How manyB. How oftenC. How soonD. How long12.(1分)— Which food do you like best, children? Fish, meat ____ eggs?— Fish.A. orB. andC. butD. /13.(1分)We mustn't cross the street when there is a red light. We ____ obey the traffic rules.A. shouldB. needC. mustD. can14.(1分)Peter enjoys ____ story books in his school library.A. readB. readsC. to readD. reading15.(1分)All of us promise ____ rules in our school.A. breakB. not breakC. to breakD. not to break16.(1分)Our parents ____ at our school at two o'clock last Monday.A. arriveB. arrivedC. will arriveD. have arrived17.(1分)Children, wash your hands! Your dishes ____ ready soon.A. have beenB. areC. will beD. were18.(1分)Our parents have gone to the hall. They ____ to our school choir now.A. will listenB. are listeningC. have listenedD. listened19.(1分)— Mum, I'm hungry. May I have some bread?— ____A. It's very salty.B. No, I don't think so.C. It doesn't matter.D. Sure, here you are.补全句子(共6题,10小题;共 10 分)20.A. go awayB. healthyC. goodD. daysE. exerciseF. muchMany people run to keep 1 . Doctors say many health problems (问题) come from bad habits. Eating too 2 , drinking too much, smoking, staying up (熬夜) late and not having enough exercise are very bad. Doctors tell us, "Eat less, don't smoke, have enough sleep and exercise more." Running is good 3 because it helps build a strong body. It also helps lose weight (体重) . One 25-year-old woman teacher runs for half an hour in the morning five 4 a week. "I feel comfortable (舒服的) and I'm not fat any more," she says. "After school, I like to run for ten minutes. Then I feel 5 ," says Yang Min, a middle school student.So today men and women of all ages enjoy running. Come on! Let's join in the running!(1)(1分)____(2)(1分)____(3)(1分)____(4)(1分)____(5)(1分)____21.(1分)Can you swim ____ (cross) this river?22.(1分)Your pizza is too ____ (spice). I don't want to eat it.23.(1分)I need some ____ (freeze) meat to make our dinner.24.(1分)____, our parents will have tea in the Music room. (final)25.(1分)Excuse me, where is the ____ of the cinema? (enter)句型转换(共5题,共 10 分)26.(2分)She needs some help to clean the classroom. (改为一般疑问句)____ she ____ any help to clean the classoom?27.(2分)They ate a lot of steamed fish yesterday. (改为否定句)They ________ much steamed fish yesterday.28.(2分)My aunt and I will stay on the farm for ten days. (对划线部分提问) ________ will you and your aunt stay on the farm?29.(2分)Lucy would like to do her homework before dinner. (保持原句意思不变) Lucy ________ do her homework before dinner.30.(2分)Let's play football together! (保持原句意思不变)________ play football together?阅读理解(共1题,5小题;共 5 分)31.It was a beautiful spring morning yesterday. There were no clouds in the sky, and it was warm but not hot. Mr. Black saw an old man at a bus stop with a big, strong, black umbrella in his hand.Mr. Black said to him, "Do you think we are going to have rain today?""No," said the old man, "I don't think so.""Then are you carrying the umbrella because of the sun?""No, the sun is not very hot in spring."Mr. Black looked at the big umbrella again, and the man said, "I am an old man, and my legs are not very strong. I must have a walking stick (手杖) . But people will say, 'Look! That man is so old.' and I don't like that. When I carry an umbrella in fine weather, people only say, 'Look at the stupid man.'"(1)(1分)This story happened ____.A. on a spring morningB. on a cold dayC. on a summer eveningD. on a hot day(2)(1分)What was the weather like that day?A. Rainy.B. Snowy.C. Sunny.D. Cloudy.(3)(1分)Mr. Black saw the old man ____.A. in a parkB. at a bus stopC. in a roomD. on a bus(4)(1分)The old man had ____ in his hand.A. a walking stickB. a brushC. a bagD. an umbrella(5)(1分)People will think that ____ if he uses a walking stick for help. A. the man is so old B. the man is so stupidC. the man is so cleverD. the man is so tall完形填空(共1题,5小题;共 5 分)32.Most people were asleep at night, but Frank was at work. Frank was a night watchman. His work was to guard (保卫) a large factory. He had to keep everything 1 . He liked his work very much. If he heard a noise, he went 2 to see what it was. Most of the time he walked around inside the big building, but he also walked around outside. When he was 3 , he would sit on a chair by the door. In the winter, it was very cold, so he wore a warm coat when he left the room.Last night, when Frank went outside, he heard a noise near the gate of the factory.He went very quietly to see 4 somebody was there, but he only saw a small dog. It looked cold and sad. He took the dog inside the building and the dog 5 him around happily. The dog was a good friend for the night watchman. Frank was no longer lonely.(1)(1分)____A. cleanB. healthyC. sureD. safe(2)(1分)____A. quicklyB. finallyC. earlyD. easily(3)(1分)____A. hungryB. tiredC. illD. where(4)(1分)____A. whoB. whereC. ifD. when(5)(1分)____A. ran afterB. waited forC. laughed atD. looked after 首字母填空(共1题,5小题;共 5 分)33.A healthy lifestyle (生活方式) helps you keep in good health. How do you stay healthy? Some good habits can help you keep in good health. The following ways may help you.Eat rightly. You have to have b 1 before you go to school. Eat fruit and vegetables every day. Remember not to eat too much junk (垃圾) food.Exercise regularly (有规律地) .You should do some exercise. Exercise makes you s 2 . It also gives you more energy (精力) . And you will feel better about yourself. It is best to exercise t 3 a week. Twenty minutes each time is OK. There are many ways to exercise, such as running and playing basketball.Don't spend too much t 4 on TV or computer games. If you spend more time on these activities, you will have less time to do sports and study. Try to spend no more than two hours a day watching TV or playing computer games.Get e 5 sleep. Every night you should sleep for about eight hours. Some students may need more.(1)(1分)____(2)(1分)____(3)(1分)____(4)(1分)____(5)(1分)____阅读与表达(共1题,5小题;共 5 分)34.The reality show (真人秀) is a kind of television programme. Usually a reality show has many series (集). And it can be on TV for many years.The reality show is quite different from other kinds of TV shows. Because it shows the life of common (普通的) people, and there are no actors (演员) in it. It often shows true stories that happened in people's everyday life. So many people like to watch reality shows.The first reality show came out in the 1990s in America. At that time, the most famous and popular reality show was Survivor (幸存者). It was popular not only in America, but also around the world.Reality shows also show different kinds of competitions (比赛). For example, there's a Chinese reality show called The Voice of China. In this show, there are four famous Chinese singers. Their job is to find their favourite students and help them be the winner (获胜者). The show is very successful (成功的). Many people like to watch it.(1)(1分)What is the reality show?________________(2)(1分)Are there any actors acting in the reality show?________________(3)(1分)When and where did the first reality show come out?________________(4)(1分)What do the four famous Chinese singers do in The Voice of China?________________(5)(1分)Do you like to watch reality shows? Why or why not?________________连词成句(共2题,共 4 分)35.(2分)on, the, The, is, third, Arts and Crafts, room, floor________________36.(2分)people, vegetables, every, plenty, day, need, of, fresh________________参考答案根据音标填空(共4题,共 4 分)1.【答案】teach【解析】考查音标。
上海市2018学年第二学期六年级英语期末考试试卷(含答案)
松江区2018学年度第二学期期末监测试卷预初英语(完卷时间90分钟,满分100分)2019.6Part One Listening (听力)I.Listen to the sentence and choose the suitable picture.(听句子,选出与句子内容符合的图片)5%A B CD E F1._________2._________3._________4._________5._________II. Listen to the dialogue and choose the best answer to the question you hear.(听对话,选出最恰当的答案)10%6. A. By plane. B. By train. C. By bus. D. By ship.7. A. Visit his grandparents. B. Visit his father.C. Go fishing with his father.D. Go fishing with his brother.8. A. Once a week. B. Once a day. C. Twice a week. D. Twice a day.9. A.10:10. B.10:30. C. 10:50. D. 10:40.10. A. In a shop. B. On a road. C. In a library. D. At a hotel.11. A. Sue. B. Alice. C. Kitty. D. Mary.12. A. It’s hot and windy. B. It’s warm and windy.C. It’s cold and windy.D. It’s rainy and windy.13. A. fish B. soup C. chicken wings D. tomatoes14.A. A visit to the Ocean Park. B. A trip to the countryside.C. A book about sea animals.D. A plan to visit the Ocean Park.15.A. The boy watched the singing contest last night.B. The boy can watch the singing contest on TV.C. The boy can watch the singing contest on the Internet.D. The boy watched the singing contest on the Internet.Ⅲ. Listen to the dialogue and tell whether the following statements are True or False.(判断下列句子是否符合你听到的对话内容, 符合的用“T”表示,不符合的用“F”表示)5%16. Schools in the USA are not the same as those in China.17. In many Chinese schools, students have no school uniforms.18.Students in the USA usually go to school much earlier than those in China.19.Students have two hours for lunch and one 20-minute break each day in the USA.20. The students in the USA usually like baseball, football and basketball most.Ⅳ. Listen to the passage and fill in the blanks. (听短文,完成下列句子)5%●Singapore is both the name of the country and its 21 .●Singapore is located in 22 the of Asia.●The Bird Park is about twelve 23 away from the centre of thecity.●There is a large lake in the park, with a restaurant 24 it.●It takes about 25 hours to see all the birds there.Part Two Phonetics, Vocabulary and Grammar(语音,词汇与语法)V. Choose the word with the different sound.(选出发音不同的单词)5%26. A. palace B. capital C. famous D. Japan27. A. king B. plastic C. without D. advice28. A. book B. toothache C. look D. good29. A. checklist B. teach C. school D. watch30. A. instead B. clean C. leaf D. easyVI. Write out the word according to the pronunciation.(根据音标写出下列单词)3%31. Nowadays there is a ___________ / feə / box on each bus.32. What may ______________ / ˈhæpən / when there is a typhoon?33.The boy ____________ / ˈsʌdnlɪ /heard a strange noise when he was doing hishomework.VII. Complete the sentences with given words in their proper forms.(用括号中所给单词的适当形式完成下列句子)7%34. Tomorrow will be my son’s ____________ birthday and we will celebrate it. ( four )35. Many women teachers like to wear woolen _____________ in winter. ( scarf )36. The weather is very ______________ in spring in Shanghai. ( change)37.In summer, boys and girls like to stay in the _____________ room.( air-conditioner )38. To let the baby fall asleep, the mother taps(拍) it _____________. (gentle)39.Joe is a strong boy because he practices ____________ once a week. (swim)40. He wishes to _____________to the moon by spaceship one day in the future. (flight) VIII.Choose the best answer. (选出最恰当的答案)13%41.The lovely boy wearing __________ uniform is my brother.A. theB. aC. anD. /42. In winter, students in our school must wear white shirts________ the long sleevesand red jackets.A. aboutB. inC. ofD. with43. Watching _________ TV is not good for our health.A. too muchB. too manyC. too fewD. too little44. Yesterday I saw many firemen _________ a fire on my way home.A. put outB. to put outC. putting outD. to putting out45.----___________ is it from your home to the school?---- About ten minutes’ walk.A. How farB. How longC. How soonD. How often46. My cousin _________in Los Angeles with his wife for two years.A. livesB. will liveC. has livedD. is living47. John is one of _________ in his class.A. the tallest studentB. the tallest studentsC. the taller studentD. the tall student48. People in that building will be in great danger ___________it is on fire.A. ifB. becauseC. beforeD. after49.----Touch it, how does it feel ?---- It feels ___________.A. tightlyB. lightC. softD. softly50. Fire drill rules tell us we ___________ not pack our school bags before leaving theclassroom.A. shouldB. canC. mayD. must51. Don’t write any more. Let’s ___________ the problem first.A. discussB. to discussC. discussedD. discussing52. ---Your dress is so nice!---_____________.A. Y ou’re welcome.B. It’s my pleasure.C. Thank you.D. You too.53. ----Thank you for helping me.----_____________A. Good idea.B. All right.C. That’s all right.D. It’s kind of you. IX. Rewrite the following sentences as required .(根据所给要求改写句子,每空格限填一词)12%54. My mother did some shopping last Sunday.(改为否定句)My mother_________ _________ any shopping last Sunday.55. Lisa has already seen the movie. (改为一般疑问句)_________ Lisa seen the movie __________ ?56. It takes about one hour and fifty minutes to travel from Shanghai to Beijing by air.(对划线部分提问)____________ __________does it take to travel from Shanghai to Beijing by air? 57. Many animals die because they lose their homes and food.(对划线部分提问)____________ ___________many animals die?58. This is a wooden desk. (保持原句意思基本不变)This desk is ____________ _________ wood.59. We can save water. We should fix a dripping tap.(两句合并成一句)We can save water ____________ __________a dripping tap.Part Three Reading and Writing (阅读和写话)X. Reading Comprehension. (阅读理解) 25%(A)Complete the following dialogue with the proper sentences in the box(选出适当的句子,完成下列对话):5%Mark: There was a fire in Rose School last week. _______60_______Jack: Yes. Our teacher has told us about it. _______61_______Mark: A boy was playing with matches in school. It was very dry. The fire danger was high.Jack: Did anybody get hurt(受伤的) in the fire?Mark: No. We fought the fire for 2 hours. Nobody got hurt in the fire. I’m going to talk about fire-safety to the students there tomorrow.Jack: ____ __62_______.Mark: We must be careful. We must not start fires.Jack: ____ __63___ ___. We must put out the fire after a barbecue.Mark: _______64_______ Do you remember anything else we must do and must not do ?Jack: Mm…, at home we must not …(B)Read and choose the right answer according to the passage. (阅读并选择) 5% Life is like the four seasons. Now I am very old. But when I was young, it was the spring of my life. After I was born, I played a lot, and then I started school. I learned many new things. Like a flower, I grew bigger every day. There were happy days and sorrowful days: some days the sun shone (照耀), and some days it didn’t.In my twenties, I had a good job. I was strong and happy. Then I got married (结婚)and had a child. In those days, I didn’t have much time to think. Every day I was busy and worked very hard. And so, I started to have some white hair. The summer of my life passed quickly. Then the days got shorter. Leaves fell from the trees. My child was a university student, and then an engineer. My home was much quieter. I started walking more slowly.One day I stopped working. I had more time. I understood this was my autumn, a beautiful time when the trees change colour and give us delicious fruits. But the days kept getting shorter and colder.Winter has come. I am older and weaker. I know I do not have many days left, but Iwill enjoy them to the end.65. The writer was very busy in the __________ of his life.A. springB. summerC. autumnD. winter66. According to the passage, which of the following ages (年龄) is during the autumnof his life?A. 15B. 33C. 62D. 8767. The underlined word “ sorrowful” in the first passage probably means __________?A. sadB. excitingC. wonderfulD. pleasant68. Which of the following is TRUE according to the passage ?A. The writer was an engineer.B. The writer had a garden with flowers.C. The writer was always happy as a child.D. The writer now is old and weak, but still he enjoys his life.69.The best title(题目) of the passage can be ___________.A. My child and IB. My School LifeC. Four Seasons in a YearD. Four Seasons in My Life(C)Choose the right words or expressions to complete the passage. (选择最恰当的单词或短语完成短文) 5%A woman in Canada was worried about her younger son, Ray, because he was not doing well in school. The boys in class made jokes about (以某人为笑柄) him because he seemed so _ 70 _ .The mother decided to help him herself. She told him to go to the Canada Public Library to read books twice a week and do book reports for her.One day, in Ray’s _ 71 _ , the teacher held up a rock (石头) and asked who knew it. Ray put up his hand and the teacher let him answer. “Why did Ray put up his hand?” his classmates wondered.“He _ 72 _ said anything. What couldhe possibly want to say?”Well, Ray not only knew the rock, but also said a lot about it. He named other rocks in its group and even knew where the teacher had found it. The teacher and the students were surprised. Ray learned all this from one of his book _ 73 _ .Ray later went on to the top of his class. When he _ 74 _ high school, he went to Yale University(耶鲁大学) and at last became one of the best doctors in the United States.70. A. clever B. good C. slow D. quick71. A. class B. room C. office D. home72. A. always B. ever C. often D. never73. A. pictures B. reports C shops D. exercises74. A. finished B. moved C. started D. planned(D)Read the passage and fill in the blanks with proper words. (在短文的空格内填入适当的词,使其内容通顺,每空格限填一词,首字母已给) 5%Everyone knows exercise is important. Doctors say it is good for us. It makes your heart and body strong. Children will be more alert (灵活的) if they exercise more. This means they do b 75 in school work after they exercise.There are many ways to exercise. You can walk, run and swim. They are individual (个人的) sports. You can also do team sports, such as basketball and f___ __76__ ____. Make sure you exercise in the following ways.●You have to like exercise.●Don’t exercise too much. You’d better exercise twice a week. Thirty minutes each time is enough.●T_______77 ______ all kinds of sports then you will find one, two or even three of them right for you.Choose to exercise at fitness centres (健身中心). Why? Because there are a lot of sports equipment(器材) there. The equipment will help exercise your arms, legs ando 78 parts of your body. It can make you healthy. Exercise can be fun. Friends can exercise t 79 at fitness centres, or they can also play sports outside. How do you exercise?(E)Read the passage and answer the following questions (根据短文内容回答下列问题)5%My sister and I looked forward to (期待着) new clothes for the New Year. But one day, my mother said, “Listen, children. We don’t have enough money now. So only one of you can get new clothes.” The silence (寂静) lasted for a few minutes. My tears (眼泪) were coming out.“OK, I have an idea,” my sister said. “I’ll write new clothes on a piece of paper and nothing on another. We cast lots (抽签) to decide.”I agreed. While she was writing at the table, I found her clothes were old and she had grown too big for the clothes. I looked at my own. They were old, but still the right size for me. “Pick one,” my sister said.I picked one and opened it. Two words ran into my eyes: NEW CLOTHES. I was happy and jumped up.A few days later, I ran into the sitting room in my new clothes. My mother and my sister were reading there. My sister gave me a smile and went on reading. My mother called me to her side and showed me two pieces of paper. On each of them was written: NEW CLOTHES.80. Both the writer and her sister can get new clothes, can’t they?____________, ________________________________________________.81.Who probably needed new clothes more, the writer or her sister?_____________________________________________________________ .82. How did they decide to get new clothes?_____________________________________________________________.83. Who got the new clothes at last?____________________________________________________________.84. What do you think of the writer’s sister?____________________________________________________________.XI. Writing(写话)10%Section A Make up sentences with the words and phrases given. (连词成句, 标点符号已给出)4%85.watch TV, would rather, I, at home_______________________________________________________________. 86. none of , travel, will, there, the people_______________________________________________________________. 87.stay, there is, we, when, at home, a typhoon, should_______________________________________________________________. 88. we, can, what, make, wood, to, use_______________________________________________________________? Section B Please write at least 50 words on the topic"______ is / are important to us " (请以“……对我们是重要的”为题写一段话,不少于50个单词。
上海市浦东新区2018年第二学期六年级数学期末考试试卷(含答案)
浦东新区2018学年第二学期中预年级数学学科期末教学质量监控测试题(满分100分,考试时间90分钟)题号 一 二 三 四 五 六 总分 得分考生注意:1.本试卷含六个大题,共25题;2.除第一、二大题外,其余各题如无特别说明,都必须写出解答的主要步骤. 一、填空题(本大题共14题,每题2分,满分28分) 1.52-的相反数是_____________. 2.计算:11()2--=______________. 3.计算:39()816÷-=____________.4.在数轴上,到原点的距离等于5的点所表示的有理数是_____________.5.据世博网5月22日消息:世博园区志愿者和城市服务站志愿者报名人数突破260000人,用科学计数法表示为人.6.比较大小:215-- 1.4--(). 7.如图,已知线段10AB cm =,2AD cm =,D 为线段AC 的中点,那么线段CB =______cm .8.已知方程36x =与关于x 的方程23x m -=的解相同, 那么m =______________.9.不等式组⎩⎨⎧->≤12x x ,的解集是 ________________.10.如果α∠的余角是56°30′,那么它的补角是 . 11.如图,如果90AOB COD ∠=∠=,那么AOC BOD ∠=∠的理由是_________________________________.12.如图,如果张江高科技园区(A )位于复旦大学(B )的南偏东 30°的方向,那么复旦大学(B )位于张江高科技园区(A )的____________________方向.13.棱长分别为3厘米、5厘米、7厘米的两个长方体拼成一个长方A D CB(第7题图)A(第11题图)OCBD BA 东 南 (第12题图)D A 1B 1C 1D 1体, 它们的表面积最多减少____________________平方厘米.14.如图,长方体ABCD -A 1B 1C 1D 1中,与平面ADD 1A 1平行的棱 是 .二、选择题(本大题共4题,每题3分,满分12分)(每题只有一个选项正确)15.关于x 的不等式2x -a ≤-1的解集如图所示,那么a 的值是………………………( ) (A )0; (B )-1; (C )-2; (D )-3.16.如果a b >,那么下列不等式中正确..的是……………………………………………( ) (A )0a b -<; (B )33a b +<-; (C )22ac bc >; (D )77a b-<-.17.如图所示,已知线段m n >,求作一线段m n -.作法:画射线AM ,在射线AM 上截取AB m =,在线段AB 上截取BC n =,那么所求的线段是………………( ) (A )AC ; (B )BC ; (C )AB ; (D )BM .18.如图所示,与棱AD 异面的棱有…………………( )(A )2条; (B )3条; (C )4条; (D ) 5条.三、解答题(本大题共有6题,每题6分,满分36分) 19.计算:22)31(1853-⨯--+- 20.解方程:612141+=--x x 解: 解:(第15题图)mn AMCB(第17题图)AB CD A 1B 1C 1D 1 (第18题图)21.解不等式:732444x x +≤+, 22.解不等式组:513(1)131722x x x x +>-⎧⎪⎨-≤-⎪⎩并把它的解集在数轴上表示出来.解: 解:23.解方程组:341239x y y x -=-⎧⎨-=⎩ 24.解方程组:2021324x y z x y z x y z -+=⎧⎪+-=⎨⎪+-=⎩解: 解:四(本大题8分)25.(1)下面四个图分别由六个相同的正方形拼接而成,其中不能..折成正方体的是( ).(2)用斜二侧画法补画下面的图形,使之成为长方体的直观图(虚线表示被遮住的线段;只要在已有图形基础上画出长方体,不必写画法步骤).-4-3-2-1543210ABC D① ②① ② ① ②③(3)在这一长方体中,从同一个顶点出发的三个面的面积之比是5:7:2,其中最大的比最小的面积大260cm,求这个长方体的表面积.五、应用题(本大题共2题,第26题7分,第27题9分)26.由于最近受甲型H1N1流感的影响,猪肉价格下降比较明显,由原来的每千克20元下降了10%;海鲜类价格有所上升,如河虾由原来的每千克46元上调至50元.某饭店到市场分别购进猪肉和河虾共180千克,发现调价前后的总价格仍然不变,问饭店购进猪肉和河虾各多少千克?解:27.为了2010年世博会,上海市准备对黄浦江边的某工程进行改造.若请甲工程队单独做此项工程需3个月完成,每月耗资12万元;若请乙工程队单独做此项工程需6个月完成,每月耗资5万元.(1)请问甲、乙两工程队合作需几个月完成?耗资多少万元?(2)因其它原因,要求最迟4个月完成此项工程即可,请你设计一种方案,既保证完成任务,又最大限度节省资金.(时间按整数月计算)解:数学参考答案一、填空题(本大题共有14题,每题2分,满分28分) 1.52; 2.112; 3.23-; 4.55-和(漏一解扣1分); 5.52.610⨯; 6.< ; 7.6; 8.1; 9.12x -<≤; 10.'14630(146.5); 11.同角的余角相等 12.北偏西30°(西偏北60°);13.70; 14.1111,,,BB CC BC B C (漏一解扣1分)二、单项选择题(本大题共有4题,每题3分,满分12分) 15.B 16.D 17.A 18.C三、解答题(本大题共有6题,每题6分,满分36分)19.解:原式1(9)5189=-+-⨯……………………………………………………3分(9)52=-+-…………………………………………………………4分 6=-…………………………………………………………………6分20.解:3(1)122(21)x x --=+……………………………………………………2分 331242x x --=+………………………………………………………3分 342312x x -=++……………………………………………………4分 17x -= …………………………………………………………5分 17x =- ………………………………………………………6分21.解:78316x x +≤+……………………………………………………………1分 73168x x -≤-……………………………………………………………2分 48x ≤………………………………………………………………3分 2x ≤………………………………………………………………4分画数轴(略,注意实心点)………………………………………………6分22. 解:由①得:2x >-…………………………………………………………2分 由②得:4x ≤ …………………………………………………………4分所以原不等式的解集是24x -<≤……………………………………6分23. 解:由①+②得:33y -=- 1y =把1y =代入②得:83x =-………………………………………………5分所以原方程组的解是:831x y ⎧=-⎪⎨⎪=⎩ ………………………………………6分24. 解:①+③得:1x =①+②得:31x y -= ④ 把1x =代入④得:2y =把1x =,2y =代入①得:3z =…………………………………………………5分所以原方程组的解是:123x y z =⎧⎪=⎨⎪=⎩………………………………………………6分四(本大题8分)25.(1)D ……………………………………………………………………………2分 (2)略.注意虚线……………………………………………………………………4分 (3)解:设这三个面的面积分别为25xcm 、27xcm 、22xcm ,由题意得………5分 7260x x -=…………………………………………………………6分 12x =…………………………………………………………7分 22(512712212)336()cm ⨯⨯+⨯+⨯=……………………………………8分 答:这个长方体的表面积是336平方厘米.五、应用题(本大题共2题,第26题7分,第27题9分)26.解:设购进猪肉x 千克,河虾y 千克,根据题意得: …………………………1分 180204620(110%)50x y x y x y+=⎧⎨+=⨯-⋅+⎩…………………………………………4分解这个方程组得:12060x y =⎧⎨=⎩…………………………………………………7分 答: 购进猪肉120千克,河虾60千克.27. 解:(1)设甲、乙两工程队合作需x 个月完成, 根据题意得: ………………1分136x x+=………………………………………………………………2分 2x =………………………………………………………………3分共耗资12534(x x +=万元)………………………………………………4分 (2) 设甲工程队做m 个月, 乙工程队做n 个月,根据题意得: …………5分136m n+=………………………………………………………………6分 因m 、n 均为不大于4的整数, 可解出14m n =⎧⎨=⎩,22m n =⎧⎨=⎩,30m n =⎧⎨=⎩………………………………………7分 当1,4m n ==时,共耗资32万元;当2,2m n ==时,共耗资34万元; 当3,0m n ==时,共耗资36万元.所以1,4m n ==时,耗资最少.………………………………………9分答:(1)两工程队合作需2个月完成任务,耗资34万元.(2)请甲工程队做1个月,乙工程队做4个月,既能保证按时完成任务,又最大限度节省资金.。
浦东新区六年级下英语期末试卷
浦东新区英语六年级期末模拟试题IIChoose the best answer.(选择最佳答案,用A,B,C或D表示)1.My aunt likes_________thin and healthy.A isB areC beD being2.My home is far way_________Pudong Airport.So let’s take an underground to_________there.A from,getB to,arrive atC for,reachD with,get3.It was Alice’s birthday yesterday.So we said“Happy birthday_________you!”A ofB toC forD at4._________athletes(运动员)from all over the world were in Beijing in2008.A A fewB A littleC A lotD A lot of5.The little boy in Shanxi is very poor.He_________goes to school on foot_________no shoes.A usually,withB never,withC never,onD usually,on6.Listen!Someone_________in the next room.A singB singsC singingD is singing7.Jill is our monitor.She_________hard.She is good at studying.A always worksB works alwaysC always workD work always8.The boy is honest.He never tells_________to his parents.A liesB a liesC liedD lying9.It’s very cold today.Let’s_________in Century Park.A going cyclingB to go cyclingC to going cyclingD go cyclingnglang loves both playing_________piano and_________basketball.A the,the B/,the C/,/D the,/11.I think it’s_________good idea to have_________orange party for him.A a,anB an,anC an,aD a,a12.This movie finished_________8:30_________the evening.A in,inB at,onC at,inD at,for13.It’s ten o’clock.The students must be_________lessons.A haveB havingC to haveD is having14.There is so much rubbish here.Please_________.A pick upB pick itC pick themD pick it up15.The new dress looks beautiful,but Lucy didn’t_________a lot of money on it.A spendB costC takeD buy16.I don’t want to watch the news report.There is_________in it.A something interestingB interesting somethingC interesting anythingD nothing interesting17.Mum,_________I do my homework first?Yes.But you can have a rest after you finish_________your homework.A must,doB must,doingC may,doD may,doing18.My uncle is_________pilot and he drives_________aeroplane.A a,aB an,anC a,anD an,a19.The parents will_________at the hall at2:40.A reachB getC comeD arrive20.We are preparing a party_________the Christmas Eve.A onB atC forD in21.There are_________students in our school.A eight hundredB eight hundredsC eight hundreds ofD hundreds22.Helen_________a doctor when she grows up.A isB wasC wereD will be23.Tom,don’t talk_________your classmates_________class.A with,inB about,onC for,in D/,/24.We_________lots of photos when we were in Sanya this summer.A takeB tookC takenD taked25.Of all the activities,I like basketball_________.A goodB betterC wellD best26.The weather is fine today.Why_________we go to the park to have a walk?A no tB don’tC didn’tD do27.Hurry up.We haven’t_________time to go to school.A enoughB manyC much moreD a lot28._________does Kim like to travel by light rail?It’s quick and comfortable.A WhatB HowC WhyD Which29.He has two school bags.One is blue,_________is black.A the otherB otherC othersD the other s30.Can your foreign teacher_________Chinese?Yes,but a little.A speakB sayC tellD talk31.Which is_________,the sun or the moon?A smallestB biggerC bigerD more small32.It’s pleasant_________an ice cream in summer.A forB for haveC to havingD to have33.This monkey is good at climbing trees and_________.A jumpB jumpingC to jumpD jumps34.What do you want_________dinner,children?Bread_________jam and an egg.A for,andB for,withC as,withD as,and35.Mrs.Chen likes to buy dumplings_________the_________food section in supermarkets but not_________the_________food stall.A in,frozen,atB in,froze,inC at,frozen,inD in,freezing,at36.You must be_________.Yes,we_________.A quiet,willB quietly,willC quiet,canD quietly,can37.Yang Fei eats_________fat and drinks_________of water every day.She’s healthy.A a little,a plenty ofB a lot of,plenty ofC a little,manyD a little,plenty of38.There is_________traffic in Shanghai so the air is_________than before.A more,betterB less,betterC fewer,betterD more,gooderComplete the sentences with the given words in their proper forms.39.There are_________floors in the building and he lives on the_________floor.(twenty)40.My class teacher_________me to read more and practice more to improve my English.(suggestion)41.It’s_________to drink polluted water.(healthy)42.I don’t like_________but my brother does.(cooker)43.Each of my friends_________an iphone4.Mum,can I_________one?(have)44.I wouldn’t like chicken wings.They are too_________.(salt)45.Our_________office is on the third floor.(teacher)46.Class Four is having a picnic in the park.Some students are playing,and_________are eating anddrinking.(other)47.This watermelon is five yuan a kilo and that one is eight yuan a kilo.So,let’s buy the_________one.(cheap)48.We must not run_________the road when the red light is on.(cross)49.It’s too_________in the hall.(noise)50.Who’s_________my English book away?(take)51.The supermarket is about five_________ride from her home.(minute)52.Where’s my teacher?She has_________to the library.(go)53.I’ll wash my face at_________.(one)54.Don’t forget_________the door when you leave.(close)55.Would you like to_________my party next week?(come)56.I_________my room yet.(clean)57.Sue_________a film with her brother yesterday evening.(see)58.Jack is writing some_________to his friends because it’s his birthday tomorrow.(invite)59.My grandma had her_________birthday last month.(seventy-eight)60.Do you know the_________to the shopping center.(enter)61._________help make our city a safe place.(policeman)62.Doctors are lovely because they can make sick people_________.(good)Rewrite the following sentences as requires.(按要求改写句子,每空限填一词)1.Peter always borrow books from the library.(对划线部分提问)__________________Peter always_________books?2.Garden City is not near Dragon Bay.(保持原句意思)Garden City is___________________________Dragon Bay.3.All my family will go to the park for a picnic tomorrow.(对划线部分提问)__________________all your family go to the park tomorrow?4.Tom doesn’t swim as quickly as Amy.(改为肯定句)Tom swims_________quickly_________Amy.5.These grapes taste nicer.(对划线部分提问)__________________these grapes taste?6.I need to buy some food for supper.(改为一般疑问句)_________you_________to buy_________food for supper?7.These prawns are eighty-six yuan a kilo(对划线部分提问).__________________are these prawns?8.She’s played basketball for half an hour.(改为否定句)She__________________basketball for half an hour.9.We will go out for dinner today.(保持原句意思)We___________________________go out for dinner today.10.They sometimes go home for dinner.(保持原句意思)They sometimes go home__________________dinner.11.Don’t leave rubbish here.(保持原句意思)You__________________rubbish here.12.There’s little water in the bottle.(对划线部分提问)__________________water is there in the bottle?13.Children enjoyed themselves on Christmas Eve.(保持原句意思)Children____________________________________on Christmas Eve..14.The young parents are busy feeding their baby.(对划线部分提问)__________________the young parents_________?。
2018-2019学年上海市浦东新区第四教育署六年级(下)期末数学试卷(五四学制)
2018-2019学年上海市浦东新区第四教育署六年级(下)期末数学试卷(五四学制)一.单项选择题(本大题共有6小题,每题2分,共12分) 1.(2分)在2-,3,0,1-中,最小的数是( ) A .2-B .3C .0D .1-2.(2分)下列运算正确的是( ) A .1131522-+=-B .34143÷= C .21222⨯= D .(3)(6)2-÷-=3.(2分)下列各组数中,是二元一次方程54x y -=的一个解的是( ) A .31x y =⎧⎨=⎩B .11x y =⎧⎨=⎩C .04x y =⎧⎨=⎩D .13x y =⎧⎨=⎩4.(2分)下列说法中,错误的是( ) A .两点之间线段最短B .如果5338α'∠=︒,那么α∠余角的度数为3622'︒C .一个锐角的余角比这个角的补角小90︒D .互补的两个角一个是锐角一个是钝角5.(2分)利用三角板工具画角很方便,但是只能画出一些特殊的角,下列角度不能用一副三角板(不再用其他工具)画出的是( ) A .15︒B .20︒C .75︒D .105︒6.(2分)已知线段8AB =,延长线段AB 至C ,使得12BC AB =,延长线段BA 至D ,使得14AD AB =,则下列判断正确的是( ) A .12BC AD = B .3BD BC = C .4BD AD = D .6AC AD =二、填空题(本大题共有12小题,每题3分,共36分) 7.(3分)计算:14(1)2-⨯--= .8.(3分)计算:485967312112︒'+︒'-︒'= . 9.(3分)若3557a b a b -=⎧⎨+=⎩,则a b += .10.(3分)用不等式表示:y 减去1的差不小于y 的一半 .11.(3分)月球离地球近地点的距离为363300千米,数据363300用科学记数法表示是 . 12.(3分)不等式2(1)34x x ->-的自然数解为 .13.(3分)将方程68x y +=写成用含x 的代数式表示y ,则y =14.(3分)若21x y =⎧⎨=⎩是关于x ,y 的二元一次方程310x my +=的解,则m = .15.(3分)如图,线段16AB cm =,C 是AB 上一点,且10AC cm =,O 是AB 中点,则线段OC 的长度为 cm .16.(3分)如图,点A 位于点O 北偏东30︒的方向上,若90AOB ∠=︒,那么点B 位于点O 方向上.17.(3分)如图,在长方体ABCD EFGH -中,与平面EBCH 垂直的平面是 .18.(3分)如图,已知OM 、OA 、ON 是BOC ∠内的三条射线,ON 平分AOC ∠,OM 平分BOC ∠,且120AOB MON ∠+∠=︒,则MON ∠= ︒.三、解答题(本大题共9小题,第19至22题每题5分,第23至25题每题6分,第26题10分,第27题4分,共52分)19.(5分)计算:221335(7)18()3--+-+⨯-.20.(5分)已知一个角的余角的度数是这个角的补角的度数的25,求这个角的度数.21.(5分)解方程组421x yx y+=⎧⎨-=⎩.22.(5分)解不等式组42233xx x+⎧⎨>-+⎩…,并将解集在数轴上表示出来.23.(6分)解方程组:44121xx y zx y-=⎧⎪+-=-⎨⎪-=-⎩24.(6分)用斜二侧画法画长方体直观图:(1)补全长方体1111ABCD A B C D-;(2)量得11B C的长度是cm,所表示的实际长度是cm;(3)与棱AB平行的平面是.25.(6分)暑假快到了,王老师想让自己女儿的假期生活过的充实点,于是就花了14500元给女儿报了一个英语口语班和一个儿童绘画班,两门课程合计55课时,英语口语一课时的学费是300元,儿童绘画一课时的学费是220元,问王老师给女儿分别报了多少课时的英语口语和多少课时的儿童绘画?26.(10分)已知同一平面内,90AOB∠=︒,30AOC∠=︒,(1)画出图形并求COB∠的度数;(2)若OD平分BOC∠,OE平分AOC∠,求DOE∠的度数.27.(4分)先阅读理解下列例题,再按要求完成作业.例题:解一元二次不等式(32)(21)0x x-+>.解:由有理数的乘法法则“两数相乘,同号得正”有①320210xx->⎧⎨+>⎩或②320210xx-<⎧⎨+<⎩解不等式组①得23x >,解不等式组②得12x <-. 所以一元二次不等式(32)(21)0x x -+>的解集是23x >或12x <-. 作业题:(1)求不等式51023x x +<-的解集; (2)通过阅读例题和做作业题(1),你学会了什么知识和方法?2018-2019学年上海市浦东新区第四教育署六年级(下)期末数学试卷(五四学制)参考答案与试题解析一.单项选择题(本大题共有6小题,每题2分,共12分) 1.(2分)在2-,3,0,1-中,最小的数是( ) A .2-B .3C .0D .1-【分析】有理数大小比较的法则:①正数都大于0;②负数都小于0;③正数大于一切负数;④两个负数,绝对值大的其值反而小,据此判断即可. 【解答】解:2103-<-<<Q ,∴在2-,3,0,1-中,最小的数是2-.故选:A .【点评】此题主要考查了有理数大小比较的方法,要熟练掌握,解答此题的关键是要明确:①正数都大于0;②负数都小于0;③正数大于一切负数;④两个负数,绝对值大的其值反而小.2.(2分)下列运算正确的是( ) A .1131522-+=-B .34143÷= C .21222⨯= D .(3)(6)2-÷-=【分析】分别根据有理数的加减法法则、有理数的乘除法法则计算即可判断. 【解答】解:11.31222A -+=-,故选项A 不合题意;3416.439B ÷=,故选项B 不合题意; 21.222C ⨯=,故选项C 符合题意; D .1(3)(6)2-÷-=,故选项D 不合题意. 故选:C .【点评】本题主要考查了有理数的乘除法以及有理数的乘方,熟练掌握法则是解答本题的关键.3.(2分)下列各组数中,是二元一次方程54x y -=的一个解的是( )A .31x y =⎧⎨=⎩B .11x y =⎧⎨=⎩C .04x y =⎧⎨=⎩D .13x y =⎧⎨=⎩【分析】把x 与y 的值代入方程检验即可.【解答】解:A 、把31x y =⎧⎨=⎩代入得:左边15114=-=,右边4=,Q 左边≠右边,∴31x y =⎧⎨=⎩不是方程的解;B 、把11x y =⎧⎨=⎩代入得:左边514=-=,右边4=, Q 左边=右边,∴11x y =⎧⎨=⎩是方程的解;C 、把04x y =⎧⎨=⎩代入得:左边044=-=-,右边4=,Q 左边≠右边,∴04x y =⎧⎨=⎩不是方程的解;D 、把13x y =⎧⎨=⎩代入得:左边532=-=,右边4=, Q 左边≠右边,∴13x y =⎧⎨=⎩不是方程的解,故选:B .【点评】此题考查了二元一次方程的解,方程的解即为能使方程左右两边相等的未知数的值. 4.(2分)下列说法中,错误的是( ) A .两点之间线段最短B .如果5338α'∠=︒,那么α∠余角的度数为3622'︒C .一个锐角的余角比这个角的补角小90︒D .互补的两个角一个是锐角一个是钝角【分析】根据线段的性质,余角与补角的定义对各小题分析判断后利用排除法求解. 【解答】解:A 、两点之间线段最短,是线段的性质,故本小题正确;B 、如果5338α∠=︒',那么α∠余角的度数为9053383622︒-︒'=︒',故本小题正确;C 、一个锐角α的余角是90α︒-,这个角的补角是180α︒-,(180)(90)90αα︒--︒-=︒,正确;D 、两个直角也是互补的角,故本小题错误;故选:D .【点评】本题考查了线段的性质,余角与补角的定义,以及角度的计算,是基础题,熟记概念与性质是解题的关键.5.(2分)利用三角板工具画角很方便,但是只能画出一些特殊的角,下列角度不能用一副三角板(不再用其他工具)画出的是( ) A .15︒B .20︒C .75︒D .105︒【分析】由于一副三角板中的角度有30︒、45︒、60︒、90︒,可能由4530︒-︒得到15︒;4530︒+︒得到75︒;4560︒+︒得到105︒,而20︒不能得到.【解答】解:Q 一副三角板中的角度有30︒、45︒、60︒、90︒, 453015∴︒-︒=︒,453075︒+︒=︒,4560105︒+︒=︒, 20︒不能得到.故选:B .【点评】考查了角的计算,要根据三角板的所有度数的和或差判断. 6.(2分)已知线段8AB =,延长线段AB 至C ,使得12BC AB =,延长线段BA 至D ,使得14AD AB =,则下列判断正确的是( ) A .12BC AD = B .3BD BC = C .4BD AD = D .6AC AD =【分析】根据8AB =,由线段的倍分关系求出BC ,AD 的长,进一步得到AC ,BD 的长,依此即可求解. 【解答】解:如图所示:8AB =Q ,12BC AB =, 4BC ∴=,14AD AB =Q , 2AD ∴=,12AC AB BC ∴=+=, 10BD AD AB =+=,2BC AD ∴=, 2.5BD BC =,5BD AD =,6AC AD =.故选:D .【点评】本题考查了两点之间的距离的应用,主要考查学生的理解能力和计算能力,解此题的关键是求出BC ,AD ,AC ,BD 的长.二、填空题(本大题共有12小题,每题3分,共36分) 7.(3分)计算:14(1)2-⨯--= 1- .【分析】原式先计算乘法运算,再计算减法运算,即可求出值. 【解答】解:原式211=-+=-, 故答案为:1-【点评】此题考查了有理数的混合运算,熟练掌握运算法则是解本题的关键. 8.(3分)计算:485967312112︒'+︒'-︒'= 9518︒' . 【分析】根据度分秒加减法计算法则进行解答.【解答】解:4859673121121163021129518︒'+︒'-︒'=︒'-︒'=︒'. 故答案为:9518︒'【点评】本题主要考查了度、分、秒的四则混合运算,是角度计算中的一个难点,注意以60为进制即可,难度适中.9.(3分)若3557a b a b -=⎧⎨+=⎩,则a b += 3 .【分析】3557a b a b -=⎧⎨+=⎩①②,①+②,利用等式的性质,等式两边同时除以4,即可得到答案.【解答】解:3557a b a b -=⎧⎨+=⎩①②,①+②得: 4412a b +=,等式两边同时除以4得:3a b +=, 故答案为:3.【点评】本题考查了解二元一次方程组,正确掌握加减消元法和等式的性质是解题的关键. 10.(3分)用不等式表示:y 减去1的差不小于y 的一半 112y y -… .【分析】由y 减去1的差的不小于y 的一半,即可得出关于y 的一元一次不等式,此题得解.【解答】解:依题意,得:112y y -….故答案为:112y y -….【点评】本题考查了由实际问题抽象出一元一次不等式,根据各数量之间的关系,正确列出一元一次不等式是解题的关键.11.(3分)月球离地球近地点的距离为363300千米,数据363300用科学记数法表示是 53.63310⨯ .【分析】科学记数法的表示形式为10a n ⨯的形式,其中1||10a <„,n 为整数.确定n 的值时,要看把原数变成a 时,小数点移动了多少位,n 的绝对值与小数点移动的位数相同.当原数绝对值10>时,n 是正数;当原数的绝对值1<时,n 是负数. 【解答】解:5363300 3.63310=⨯, 故答案为53.63310⨯.【点评】本题考查了科学记数法表示较大的数,正确移动小数点位数是解题的关键. 12.(3分)不等式2(1)34x x ->-的自然数解为 1和0 . 【分析】先求出不等式的解集,再确定其自然数解. 【解答】解:2(1)34x x ->-, 2234x x ->-, 2342x x ->-+, 2x ->-, 2x <,则该不等式的自然数解为1和0, 故答案为:1和0.【点评】本题考查了解简单不等式的能力,解答这类题时尤其要注意,系数为负数时,要根据不等式的性质3,将不等号的方向改变.13.(3分)将方程68x y +=写成用含x 的代数式表示y ,则y = 86x - 【分析】把x 看做已知数求出y 即可.【解答】解:将方程68x y +=写成用含x 的代数式表示y ,则86y x =-, 故答案为:86x -.【点评】此题考查了解二元一次方程,解题的关键是将一个未知数看做已知数求出另一个未知数.14.(3分)若21x y =⎧⎨=⎩是关于x ,y 的二元一次方程310x my +=的解,则m = 4 .【分析】方程的解是能使方程左右两边相等的未知数的值,把方程的解代入,即得到关于m 的一元一次方程,进而求m 的值.【解答】解:把21x y =⎧⎨=⎩代入方程310x my +=,得:3210m ⨯+=解得:4m = 故答案为:4.【点评】本题考查了二元一次方程的解,一元一次不等式的计算.15.(3分)如图,线段16AB cm =,C 是AB 上一点,且10AC cm =,O 是AB 中点,则线段OC 的长度为 2 cm .【分析】根据线段的和差关系进行行解答即可. 【解答】解:12OC AC AO AC AB =-=-, 又10AC cm =Q ,16AB cm =, 2OC cm ∴=;故线段OC 的长度是2cm 或18cm . 故答案为:2【点评】此题主要考查了两点间的距离,理清题意是解答本题的关键.16.(3分)如图,点A 位于点O 北偏东30︒的方向上,若90AOB ∠=︒,那么点B 位于点O 北偏西60︒ 方向上.【分析】如图所示,由30AOC ∠=︒,利用余角的定义可得60BOC ∠=︒,即可得出点B 位于O 的北偏西60︒.【解答】解:如图,30AOC ∠=︒Q ,90AOB ∠=︒,60BOC ∴∠=︒,∴点B 位于O 的北偏西60︒.故答案为:北偏西60︒【点评】本题主要考查了方向角,解题的关键是从图中找出各角之间的关系.17.(3分)如图,在长方体ABCD EFGH -中,与平面EBCH 垂直的平面是 平面ABFE 、平面CDHG .【分析】如果一个平面过另一平面的垂线,则这两个平面互相垂直,据此求解.【解答】解:EH EF ⊥Q ,EH AE ⊥,EH ∴⊥平面ABFE ,EH Q 在平面EBCH 内,∴平面EBCH ⊥平面ABFE ;同理平面EBCH ⊥平面CDHG .故答案为平面ABFE 、平面CDHG .【点评】本题借助长方体的棱与面考查立体图形,考查学生的观察能力及空间想象能力. 18.(3分)如图,已知OM 、OA 、ON 是BOC ∠内的三条射线,ON 平分AOC ∠,OM 平分BOC ∠,且120AOB MON ∠+∠=︒,则MON ∠= 40 ︒.【分析】设AOB x ∠=︒,MON y ∠=︒,先表示出BOC ∠的度数,再根据角平分线的定义表示出MOC ∠与NOC ∠,然后根据MON MOC NOC ∠=∠-∠列式整理得出规律,MON ∠的度数等于AOB ∠的一半,进行求解即可.【解答】解:设AOB x ∠=︒,MON y ∠=︒,则BOC AOB AOC x AOC ∠=∠+∠=︒+∠,因为ON 平分AOC ∠,OM 平分BOC ∠. 所以111222MOC BOC x AOC ∠=∠=+∠,12NOC AOC ∠=∠, 所以12MON MOC NOC x ∠=∠-∠=, 即12y x =, 由题意可得:11202x x +=︒, 解得80x =︒,所以40MON ∠=︒.故答案为:40【点评】此题主要考查角平分线的定义,根据角平分线定义得出所求角与已知角的关系转化,然后根据已知条件列方程求解.三、解答题(本大题共9小题,第19至22题每题5分,第23至25题每题6分,第26题10分,第27题4分,共52分)19.(5分)计算:221335(7)18()3--+-+⨯-. 【分析】原式先计算乘方运算,再计算乘法运算,最后算加减运算即可求出值.【解答】解:原式9357249=---+=-.【点评】此题考查了有理数的混合运算,熟练掌握运算法则是解本题的关键.20.(5分)已知一个角的余角的度数是这个角的补角的度数的25,求这个角的度数.【分析】设这个角的度数是x ,然后列方程求解即可.【解答】解:设这个角的度数是x . 根据题意,得2(90)(180)5x x -=-. 解得 30x =.⋯(2分)答:这个角的度数是30︒.【点评】本题主要考查的是余角和补角的定义,依据题意列出方程是解题的关键.21.(5分)解方程组421x y x y +=⎧⎨-=⎩. 【分析】用加减消元法解方程组即得到答案.【解答】解:421x y x y +=⎧⎨-=⎩①②①-②得:()(2)41x y x y +--=-23y y +=33y =1y =把1y =代入①得:14x +=,3x =∴原方程组的解为31x y =⎧⎨=⎩ 【点评】本题考查了二元一次方程组的解法,解题关键是认真观察未知数系数并适当选用消元方法解方程.22.(5分)解不等式组42233x x x+⎧⎨>-+⎩…,并将解集在数轴上表示出来.【分析】分别求出每一个不等式的解集,根据口诀:同大取大、同小取小、大小小大中间找、大大小小无解了确定不等式组的解集.【解答】解:解不等式42x +…,得:2x -…, 解不等式233x x >-+,得:3x <,则不等式组的解集为23x -<„,将解集表示在数轴上如下:【点评】本题考查的是解一元一次不等式组,正确求出每一个不等式解集是基础,熟知“同大取大;同小取小;大小小大中间找;大大小小找不到”的原则是解答此题的关键.23.(6分)解方程组:44121x x y z x y -=⎧⎪+-=-⎨⎪-=-⎩【分析】根据解三元一次方程组的方法可以解答此方程组.【解答】解:44121x x y z x y -=⎧⎪+-=-⎨⎪-=-⎩①②③,由①,得8x =,将8x =代入③,得821y -=-,解得, 4.5y =,将8x =, 4.5y =代入②,得8 4.51z +-=-,解得,13.5z =,故原方程组的解是84.513.5x y z =⎧⎪=⎨⎪=⎩.【点评】本题考查解三元一次方程组,解答本题的关键是明确解三元一次方程组的方法. 24.(6分)用斜二侧画法画长方体直观图:(1)补全长方体1111ABCD A B C D -;(2)量得11B C 的长度是 1 cm ,所表示的实际长度是 cm ;(3)与棱AB 平行的平面是 .【分析】(1)利用斜二侧画法首先建立坐标系,再利用图象各边与坐标轴位置关系画出图象即可;(2)利用刻度尺量出11B C 的长度为1cm ,再利用斜二侧法所化图形的性质得出实际长度是2cm ;(3)利用图象得出与棱AB 平行的平面即可.【解答】解:(1)如图所示;(2)用刻度尺量出11B C 的长度为1cm ,故表示的实际长度是2cm ;故答案为:1,2;(3)与棱AB 平行的平面是:平面1111A B C D 、平面1DD 1C C .故答案为:平面1111A B C D 、平面1DD 1C C .【点评】此题主要考查了斜二测法画立体图形以及直线与面平行的性质,根据已知图象建立坐标,再画出图形是解题关键.25.(6分)暑假快到了,王老师想让自己女儿的假期生活过的充实点,于是就花了14500元给女儿报了一个英语口语班和一个儿童绘画班,两门课程合计55课时,英语口语一课时的学费是300元,儿童绘画一课时的学费是220元,问王老师给女儿分别报了多少课时的英语口语和多少课时的儿童绘画?【分析】设王老师给女儿报了x 课时的英语口语,y 课时的儿童绘画,根据两门课程合计55课时共需14500元,即可得出关于x ,y 的二元一次方程组,解之即可得出结论.【解答】解:设王老师给女儿报了x 课时的英语口语,y 课时的儿童绘画,依题意,得:5530022014500x y x y +=⎧⎨+=⎩, 解得:3025x y =⎧⎨=⎩. 答:王老师给女儿分别报了30课时的英语口语和25课时的儿童绘画.【点评】本题考查了二元一次方程组的应用,找准等量关系,正确列出二元一次方程组是解题的关键.26.(10分)已知同一平面内,90AOB ∠=︒,30AOC ∠=︒,(1)画出图形并求COB ∠的度数;(2)若OD 平分BOC ∠,OE 平分AOC ∠,求DOE ∠的度数.【分析】(1)分别以点A 、O 为圆心,AO 长为半径画弧,两弧交于点C ,作射线OC 即可;(2)分OC 在AOB ∠内部和外部两种情况,由角平分线的定义可得12COD BOC ∠=∠、12COE AOC ∠=∠,分别依据DOE COD COE ∠=∠+∠、DOE COD COE ∠=∠-∠可得答案. 【解答】解:(1)如图所示,AOC ∠或AOC ∠'即为所求,当OC 在AOB ∠内部时,60BOC AOB AOC ∠=∠-∠=︒,当OC 在AOB ∠外部时,150BOC AOB AOC ∠=∠+∠=︒,答:COB ∠的度数为60︒或150︒;(2)当OC 在AOB ∠内部时,如图2,OD Q 平分BOC ∠,OE 平分AOC ∠,1302COD BOC ∴∠=∠=︒,1152COE AOC ∠=∠=︒, 45DOE COD COE ∴∠=∠+∠=︒;当OC 在AOB ∠外部时,如图3,OD Q 平分BOC ∠,OE 平分AOC ∠,1752COD BOC ∴∠=∠=︒,1302COE AOC ∠=∠=︒, 45DOE COD COE ∴∠=∠-∠=︒;答:DOE ∠的度数为45︒.【点评】本题主要考查角平分线的定义,熟练掌握角平分线的定义及角的运算是解题的关键.27.(4分)先阅读理解下列例题,再按要求完成作业.例题:解一元二次不等式(32)(21)0x x -+>. 解:由有理数的乘法法则“两数相乘,同号得正”有①320210x x ->⎧⎨+>⎩或②320210x x -<⎧⎨+<⎩解不等式组①得23x >,解不等式组②得12x <-. 所以一元二次不等式(32)(21)0x x -+>的解集是23x >或12x <-. 作业题:(1)求不等式51023x x +<-的解集; (2)通过阅读例题和做作业题(1),你学会了什么知识和方法?【分析】由不等式组分别解出x 的取值范围,写出x 的公共部分就是不等式组的解集.【解答】解:(1)由有理数的除法法则“两数相除,异号得负”有①510230x x +>⎧⎨-<⎩或②510230x x +<⎧⎨->⎩解不等式组①,得1352x -<<; 解不等式组②,得不等式组②无解,所以不等式5123xx+<-的解集为1352x-<<.(2)运用有理数的乘法法则,把一元二次不等式转化为一元一次不等式组来解决;运用有理数的除法法则,把分母中含有未知数的不等式转化为一元一次不等式(组)来解决.【点评】本题考查的是一元一次不等式组的解,本题比较新颖,也不是很难.。
浦东新区第一教育署2017-2018学年六年级语文下学期期中阶段质量调研试题沪教版五四制
上海市浦东新区第一教育署2017—2018学年六年级语文下学期期中阶段质量调研试题(完卷时间:100分钟满分:100分)题号积累与运用(16分)文言诗文阅读(14分)现代文阅读(28分)作文(40+2)总分(一)(二)(一)(二)(三)(一)(二)得分一、积累和运用(16分)(一)默写(10分)1、少年辛苦终身事, 。
(《题弟侄书堂》)2、,润物细无声。
(《春夜喜雨》)3、念天地之悠悠,。
(《登幽州台歌》)4、一腔热血勤珍重,.(《对酒》)5、,莲动下渔舟。
(《山居秋暝》)(二)基础知识运用(6分)6、选出下列没有错别字.....的一项( )(2分)A.深邃踌躇相提并论B.酝酿喉咙眼花潦乱C。
锦绣蓑笠别出新裁 D.尴尬涟漪莫明其妙7、下列选项中错误的一项是()(2分)..A.“小草偷偷地从土里钻出来,嫩嫩的,绿绿的”是一个变式句,强调了小草的生机和绿色。
B.《诺曼底号遇难记》中写船长在“阴惨惨的薄雾”中沉入大海,写大雾是为了交代故事发生的背景,也表现了船长忠于职守的英雄品质。
C.《清贫》中用“矜持不苟”、“舍己为公”等褒义词赞美共产党人的美德.D.《钱塘湖春行》描写了初春西湖的美景给人带来的喜悦之情。
8、仿写叠词(2分)⑴绿油油⑵稀稀疏疏二、文言诗文阅读(14分)(一)阅读下面的诗歌,完成9——10题(4分)黄鹤楼昔人已乘黄鹤去,此地空余黄鹤楼。
黄鹤一去不复返,白云千载空悠悠.晴川历历汉阳树,芳草萋萋鹦鹉洲。
日暮乡关何处是,烟波江上使人愁。
9、《黄鹤楼》的作者是____代诗人。
(2分)10、下列理解不正确的一项是()(2分)...A.前两联充满虚实结合的意境美,烘托黄鹤楼高耸的雄姿。
B.诗句中多处运用叠音词,使诗作富于清朗和谐的音乐美。
C。
颈联描绘了晴日,汉水对岸的景物隐约可辨、凄美动人。
D。
诗作以“愁”字收篇,抒发了诗人漂泊异乡的伤感之情。
(二)阅读下面的诗歌,完成11——12题(4分)送友人【唐】李白青山横北郭,白水绕东城。