2016六年级睿达杯一试答案

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2015年第六届睿达杯6年级1试试卷

2015年第六届睿达杯6年级1试试卷
分 ;到 乙地 后骑 自行车沿原路返 回 ,用 了 4小 时 sO分 。 自行车上 坡速度是每小时 10千 米 行车下坡速度是每小时 ▲ 千米 。
,
18.两 种饮水器若干个 ,一 种容量为 12升 ,另 一种容量为 15升 。183升 水恰好装满这 些饮水器 。其
中 15升 容量的饮水器用 了 ▲ 个。

14.在 ⊥和 至之 间插进 三 个最简分数 ,把 这五个数从小到大排成 一 行 ,使 相邻两个数 的差都相等 。 则
3
9
插进 的这 三个数分别是
15.


水果店有苹果和梨子 一共 BO千 克 ,卖 出苹果重量的⊥和梨子重皇 的 ⊥后 ,一 共 还 剩 下 ∞ 千克
3
5
,
水果店原有苹果
16.

千克 。
的 ,它 的表面积是 ▲ 平方厘米 。
4.如 果两个三 位数 的差等于 “7,就 说这两个数组成 一个数对 。这样 的数对共有
▲ 个。
,
5.一 次数学竞赛五位选手 的总分是 412分 ,每 人 的分数都是整数 ,并 且 各不相 同 。得分最少 的人
最多得 ▲ 分。 、
6.在 一 个 圆柱形水桶里 ,有 一段半径是 5厘 米 的圆钢全部放入 水 中;水 面就 上 升
、 鎏
” 第六届 〃 睿达杯 小学生数学能力竞赛试题卷
六年级 第一试
zO15年 11月 1日

30-1⒈ 0O
1.作 答必须用黑色墨迹签字笔或钢笔填写,答 案必须写在答题纸上 ,答 题时不得超出答题框 ,否 则无效 。 2.保 持卷面清洁 ,不 要折叠 ,不 要弄破 。 3.答 题前 ,在 答题纸左侧考生信息框中填写所在地 、学校 、姓名等信息 。 4.本 次考试采用网上阅卷 ,务 必要正确填涂准考证号 ,准 考证号填涂时需用 2B铅 笔 。

2016年小学六年级毕业水平测试数学试卷及参考答案

2016年小学六年级毕业水平测试数学试卷及参考答案

2016年沅陵县小学六年级毕业水平测试试卷数 学时量:90分钟分钟满分:120分 题号题号 一 二 三 四 五 六 总分总分亲爱的同学:亲爱的同学:经过小学六年的学习,经过小学六年的学习,经过小学六年的学习,你一定掌握了不少的知识与本领,你一定掌握了不少的知识与本领,你一定掌握了不少的知识与本领,现在现在是你展示学习成果之时,请你认真思考,细心做答,相信你是最棒的!是你展示学习成果之时,请你认真思考,细心做答,相信你是最棒的!一、 认真读题,细心填空。

(每空1分,共30分)。

1、地球的表面积是五亿一千零六万七千八百六十平方千米,横线上的数写作( ),改写成以“万”作单位的数是(改写成以“万”作单位的数是( )万,四舍五入到亿位约是(五入到亿位约是( )亿。

)亿。

2、5吨80千克=(千克=( )吨)吨 56 时=(时=( )分)分 3、小红有3件上衣,4条裙子,一共有(条裙子,一共有( )种搭配方案。

)种搭配方案。

4、A ÷1616==5······B ,A 最大是(最大是()。

5、78 的计数单位是( ),再添上( )个这样的计数单位就是最小的质数。

6、三个连续偶数的和是9090,中间的偶数是(,中间的偶数是( ),将它分解质因数是( )。

7、有13本书放进3个抽屉中,总有一个抽屉中至少放进(个抽屉中,总有一个抽屉中至少放进( )本。

)本。

8、一副地图,图上3厘米表示实际45千米,它的比例尺是(千米,它的比例尺是( )。

9、鸡兔同笼共10个头,个头,2828只脚,兔有(只脚,兔有( )只。

)只。

1010、零下、零下8℃,记作(℃,记作( );零上5摄氏度,记作(摄氏度,记作( )。

1111、箱子中有、箱子中有3个红球,个红球,44个白球和5个黄球,从中摸出(个黄球,从中摸出( )个球,能使每种颜色的球至少有一个。

使每种颜色的球至少有一个。

2016年希望杯六年级第一试试题及答案

2016年希望杯六年级第一试试题及答案

第十四届小学“希望杯”全国数学邀请赛六年级第1试试题2016年3月20日 上午8:30至10:00以下每题6分,共120分。

1、计算: 2521122513121⨯+⨯2、2016个2017连乘的积与2017个2016连乘的积相加的和的个位数字是____________。

3、观察下面一列数的规律,这列数从左往右第100个数是_________。

21, 53, 85, 117, 149,……4、已知a 是1到9中的一个数,若循环小数 aa 11.0.=,则a =___________。

5、若四位数ABC 2能被13整除,则A+B+C 的最大值是_________。

6、食堂买来一批大米,第一吃了全部的103,第二天吃了剩下的 52,这里还剩下210千克。

这批大米一共有________千克。

7、定义:a*b=2×{ 2a }+3×{ 6b a +},其中符号{x }表示x 的小数部分,如:{2.016}=0.016,那么1.4*3.2=_________。

(结果用小数表示)8、如图1,圆柱体与圆锥体的高的比是4:3,底面周长的比为3:5。

已知圆锥体的体积是250立方厘米,圆柱体的体积是___________立方厘米。

9、一仓库里堆放着若干个完全相同的正方体货箱,这堆货箱的三视图如图2所示,这堆正方体货箱共有__________个。

10、如图3,时钟显示的时间是9:15,此时分针与时针的夹角是_________度。

11、如图4,三张卡的正面各写有一个数,它们的反面分别写有质数m ,n ,p 。

若三张卡片正反两面的两个数的和都相等,则m + n + p 的最小值是___________。

12、一个长方体,如果高增加2厘米就成了正方体,而且表面积增加56平方厘米。

原来这个长方体的体积是__________立方厘米。

13、一个分数,若分母减1,化简后得 31;若分子加4,化简后得 21。

六年级第二届“睿达杯”数学智能竞赛二试试卷

六年级第二届“睿达杯”数学智能竞赛二试试卷




倍.
(第 11 题) 第 1 页 共 2 页
12.如图,有一个等腰梯形,它的一个底角是 60°,上底是 3 厘米,下底是 6 厘米,在 梯形的边上紧挨着一个半径是 1 厘米的圆形.圆形紧挨着绕梯形外围滚动一圈,则圆形 经过部分的面积是

平方厘米. ( 取 3.14)
(第 12 题)
13.正方体的棱长是一个一位数,表面的每个正方形面积是一个两位数,整个正方体的 表面积是一个三位数.而且若将正方形面积的两位数中的两个数字调换一下,则恰好是表面积三位数的十 位与个位上的数字.那么,这个正方体的棱长是
A D
(第 19 题)
B
E C
20.有五个长方形正好能拼成一个大正方形,这 5 个长方形中每一个长方形的长与宽的长度,正好分别是 1—10 这 10 个自然数中的某两个. (1)这个正方形的面积最小是多少?为什么. (2)你能画出用这样五个长方形搭拼构建出的这个正方形吗?试一试.
第 2 页 共 2 页

种不同的拼贴方式. (经过旋转以后图形
(第 3 题)
4.甲、乙两车同时从 A,B 两地相向开出,预计 10 小时可以相遇.两车同时行驶 6 小时后,甲车因故障 停开,而乙车又继续开了 6 小时遇到甲车.乙车还要

小时才能到达 A 地.
5.一只小虫从 A 处爬到 B 处.如果它的速度每分钟增加 1 米,可提前 10 分钟到达;如果它的速度再增加 2 米,则又可提前 10 分钟到达.则 A 处到 B 处之间的路程是


14.x,y 表示两个数, 规定新运算 “○”及“△”如下:x ○ y = mx ny ,x △ y kxy , 其中 m,n,k 均为正整数.已知 1○2=5, (2○3)△5=90,那么(1△2)○3 的值是

2015年睿达杯数学邀请赛模拟试题(六年级第一试答案)

2015年睿达杯数学邀请赛模拟试题(六年级第一试答案)

2015年睿达杯数学邀请赛模拟试题六年级 第Ⅰ试试题(参考答案)2015年11月1日 上午8:30至10:00一、以下每题6分,共120分1.计算:0.3÷)(7131521+⨯= 。

解析:原式=495211075103=⨯⨯ 2.计算: )871000143100121101++= 。

解析:原式=(101+1001+10001)+(878684++)=11105813.一个时钟时针长5cm ,它从6点到8点24分,时针扫过的面积是多少?8点24分-6时=2.4时; 3.14×5 2 × 1 12 ×2.4, =3.14×25×0.2, =15.7(平方厘米);答:时针扫过的面积是15.7平方厘米.4.一箱乒乓球,一等品占14,二等品占5a(a 为自然数),三等品是91只,共有几只乒乓球?。

91÷(1-1/4-2/5)=91÷7/20 =260箱子里共有260个乒乓球5.如图1,边长为12cm 的正方形与直径为16cm 的圆部分重叠(圆心是正方形的一个顶点),用S 1,S 2分别表示两块空白部分的面积,则S 1—S 2= cm 2(圆周率π取3)。

解析:差不变面积问题。

S 1—S 2=(S 1+S 阴)—(S 2+S 阴)=S 圆—S 正=3×(16÷2)2 —122=192—144=48cm 2图16.图书馆内座无虚席,一节课后,看书的走了81,又进来21人,这时座位不够了,只好有12人两人挤在一起座一个凳子,学校图书馆共有多少个座位?7.有一口无水的井,用一根绳子测井的深度,将绳对折后垂到井底,绳子的一端高出井口9m ;将绳子三折后垂到井底,绳子的一端高出井口2m ,则绳长 米,井深 米。

解析:盈亏问题。

绳子分去2段井深,则多2×9=18米,绳子分去三段井深,则多3×2=6米。

第三届“睿达杯”中小学数学智能竞赛一试答案

第三届“睿达杯”中小学数学智能竞赛一试答案

第三届“睿达杯”中小学数学智能竞赛一试四年级年级参考解答及评分标准1. 2011×2011-2012×2010=2011×2010+2011-(2011×2010+2010)=2011-2010=1.2. 35×72+6=2526,2526÷53=47……35.3. 铜牌数为(88+4) ÷4=23(块),从而得到银牌27块,金牌38块.4.(4+2)÷2×3=9(岁).5.(52-2×5)÷(2+5)=6(cm),6×6+52=88(cm2).6. 4+2×(2012-1)=4026,(4+4026)÷2=2015.7. 50×(5+2+4+1)÷(4+1+2+1)=75(千米/小时).8. 2×(104÷4+1)×2=108(面).9. 8×3+7×2+6×1+(4+3+2+1)×2=64(个);或32+20+10+2=64(个).10. 30÷3+30×2=70(度).11.(5×13+7)÷3=24.12. 180×(10-2)=1440(度).13. 井深为2×7-3×1=11(米),绳长为2×(11+7) =3×(11+1)=36(米).14. 画直线图可得.15.(30×4+3+10)÷7=19(周),2013年2月10日是周日.16. 3.5×3×2+3.5×2=28(元).17.(55+70)×[30×2÷(70-55)]= 500(米).18. 24×2÷4=12(厘米),12×12=144(平方厘米).二、解答题(本大题共2小题,每小题15分,共30分)19. 10元9张,5元6张,2元5张. (5分) 2元的张数必须是5的倍数,因此只能是5张. 5元和10元共15张,合计120元. 5元: (150-120) (10-5) =6(张);10元: 20-6-5=9(张). (10分)20. 数阵排列规律是:将自然数依次“从左下向右上”成“斜行”往复排列。

“睿达杯”小学生数学能力竞赛100题(六年级)

“睿达杯”小学生数学能力竞赛100题(六年级)

2017年“睿达杯”小学生数学能力竞赛100题(六年级)1..2..3..4..5.如果,那么.6.,比A小的最大自然数是几7.______.8.求的整数部分.9.有一个一位小数,把它的小数部分变为原来的2倍,这个数变成;把它的小数部分变为原来的5倍,这个数变为11,这个数原来是________.10.有一个三位数,若按以下程序进行操作:将百位数乘以5、减去10、乘以2;加上十位数字;乘以10;加上个位数字,最后得到一个新的三位数688,则原三位数是_______.X化成小数后,如果从小数点后第一位数字开始,连续若干11.真分数7个数字之和是2015,则12.一辆汽车的车牌号是一个五位数,小明做倒立时,看到的车牌号变成了另外一个五位数,这个五位数比原来的五位数大78633,这辆车的车牌号是 ____________.13.设六位数满足,请写所有这样的六位数_____________.14.两个数的最小公倍数是84,最大公约数是7,则这两个数是__________.15.一个六位数,它的个位上的数字是6,如果把数字6移动一位,所得的数是原数的4倍,这个六位数是__________.16.一次智力测试,主持人亮出四块三角形的牌子,如图在第(4)块牌子中,“”表示的数是__________.17.一次测验共有10道问答题,每题的评分标准是:回答完全正确,得5分,回答不完全正确,得3分,回答完全错误或不回答,得0分.至少人参加这次测验,才能保证至少有3人的得分相同.18.六位数□2016□能被55整除,则这个六位数是.19.某班有16名学生,每个月教师把学生分成两个组,问至少经过个月,才能使该班的任意两个学生总有某个月份是分在不同的小组里.20.下面除法算式中互质的被除数与除数分别是_______.21.某小学在星期一到星期五的每天上午有课间加餐,品种有:包子、肉卷、三明治、面包,每天一种,相邻两天不能重复,星期五必须是包子.问:课间加餐食谱有种排法.22.下图中含有______条线段.23.爬上一段12级楼梯,规定每一步只能上一级或两级或三级楼梯,要登上第12级楼梯,不同的走法有种.24.如右图,用4种颜色对A、B、C、D、E五个区域涂色,要求相邻的区域涂不同的颜色,那么共有种涂法.25.在同平面上画8个圆,最多能将平面分成部分.26.六年级三班举行六一儿童节联欢活动,整个活动由2个舞蹈、2个演唱会和3个小品组成,如果要求同类型的节目连续演出,那么共有种不同的出场顺序.27.从1,2,3,4…1994这些自然数中,最多可以取个数,能使这些数中任意两个数的差都不等于9.28.在11名学生中,有正、副班长各1名,现选派3人分别参加铅球、跳远、长跑比赛,如果正、副班长至少有1人在内,则有种不同的选法.29.某次数学、英语测试,所有参加测试都的得分都是自然数,最高得分198,最低得分169,没有得193分、185分和177分的,并且至少有6人得同一分数,参加测试的至少有______人.30.一本书的页码里共含有88个数字“8”,这本书至少有页,至多有页.31.王大爷养了鸡、鸭、猪、羊四种动物,数头共有100个,数脚共有280只,结合图中的信息,计算王大爷养鸡只.32.在抗洪救灾活动中,甲、乙、丙三人一共捐了80元.已知甲比丙多捐18元,甲、乙所捐的和与乙、丙所捐的和之比是10:7,则甲捐元,乙捐元,丙捐元.33.甲、乙两校参加“睿达杯”全国数学邀请赛的学生人数之比是7:8,获奖人数之比是2:3,两校各有320人未获奖,那么两校参赛的学生共有人.34.如图所示,三个图形的周长相等,则_______.35.甲、乙两地相距360米,前一半时间小华用速度A行走,后一半时间用速度B走完全程,又知A:B=5:4,则前一半路程所用时间与后一半路程所用时间的比是.1,就可36.某部队奉命从驻地乘车赶往某地区,如果车速比原来提高9以比预定时间提前20分钟赶到;如果先按原速行驶72千米,再将1,就可以比预定时间提前30分钟赶到,这支部队的行路车速提高3是千米.37.甲乙两个水管单独开,注满一池水,分别需要20小时,16小时.丙水管单独开,排一池水要10小时,若水池没水,同时打开甲乙两水管,5小时后,再打开排水管丙,问水池注满还是要______小时.38.长短和粗细各不相同的甲、乙两根蜡烛,甲可燃6小时,乙可燃8小时,两根蜡烛同时点燃3小时后,甲比乙长2倍,甲、乙两根蜡烛的长度比是________.39.从上海开车去南京,原计划中午11:30到达,但出发后车速提高了1,11点钟就到了,第二天返回时,同一时间从南京出发,按原71,到达上海时恰好是11:10,速行驶了120千米后,再将车速提高了6上海、南京两市之间的路程是______千米.40.牛牛家与学校相距6千米,每天牛牛都以一定的速度骑自行车去学校,恰好在上课前5分钟赶到.这天,牛牛比平时晚出发了10分钟,于是他提速骑车,结果在上课前1分钟赶到了学校.已知牛牛提速后的速度是平时的倍.牛牛平时骑车的速度是每小时_____________千米.41.甲、乙两个工程队分别负责两项工程.晴天,甲完成工程需要10天,乙完成工程需要16天;雨天甲和乙的工作效率分别是晴天的30%和80%.实际情况是两队同时开工、同时完工.那么在施工期间,下雨的天数是天.42.杯中有浓度为36%的某溶液,倒入一定量的水后,溶液的浓度降低到30%,若要稀释到浓度为24%,则再加入的水是上次所加水的倍.43.某水池可以用甲、乙两根水管注水,单开甲管需12小时注满,单开乙管需24小时注满.若要求10小时注满水池,且甲、乙两管同时打开的时间尽量少,则甲、乙最少要同时开放小时.3.已知三杯糖水共44.甲、乙、丙三杯糖水的浓度分别为38%、%和4200克,其中甲与乙、丙两杯糖水的质量和相等、三杯糖水混合后,糖水的浓度变为60%,那么,丙杯中有糖水克.45.有两个同样的仓库,搬运完一个仓库的货物,甲需6小时,乙需7小时,丙需14小时.甲、乙同时开始各搬运一个仓库的货物.开始时,丙先帮甲搬运,后来又去帮乙搬运,最后两个仓库的货物同时搬完.则丙帮甲______小时,帮乙_______小时.46.某工程,由甲乙两队承包,12天可以完成,需支付18000元;由乙丙两队承包,15天可以完成,需支付15000元;由甲、丙两队承包,18天可以完成,需支付12000元.在保证30天内完成的前提下,选择_____队单独承包费用最少.47.甲、乙两车分别从A、B两地同时相向开出,甲车的速度是50千米1多50 /时,乙车的速度是40千米/时,当甲车驶过A、B距离的3千米时,与乙车相遇,A、B两地相距千米.48.某商店以不低于进价的120%的价格才肯出售某种商品,为获取更大利润,老板以高出进价的80%的价格标价,若王老师想买下标价为600元的某种商品,最多降低元,老板才肯出售.49.某商品进了一批笔记本,按30%的利润定价.当售出这批笔记本的80%后,为了尽早销完,商店把这批笔记本按定价的一半出售.问销完后商品实际获得的利润百分数是多少50.新华出版社出版的某种书,今年每册书的成本比去年增加10%,但是仍然保持原售价,因此每本利润下降了40%,但今年的发行册数比去年增加80%,那么今年发行这种图书获得总盈利比去年增加百分之几3,两车同时分别由甲、乙两站相对开51.已知货车速度是客车速度的4出,在离中点6千米处相遇,则两站相距千米.52.张家镇中心小学距离县城48千米,其中一部分是上坡路,其余是下坡路.张校长骑自行车从学校到县城,去时用了小时,返回时用了小时.已知张校长骑自行车上坡每小时行l0千米,则他骑自行车下坡每小时行千米.53.一只小船从A港到B港往返一次共用2小时,回来时顺水,比去时每小时多行驶8千米,因此第2小时比第1小时多行驶了6千米.A、B两港的距离是米.54.狗跑5步的时间马跑3步,马跑4步的距离狗跑7步,现在狗已跑出30米,马开始追它.问:狗再跑米,马可以追上.55.睿达数学小组在下午4点多开了一个会,刚开会时涛涛看了一下手表,发现那时手表的分针和时针垂直.下午5点之前会就结束了,散会时涛涛又看了一下手表,发现分针与时针仍然垂直,那么这个小组会共开了分钟.56.8点分的时候,分针与时针第一次形成75°角.57.小华的手表比家里的闹钟走得要快一些.这天中午12点时,小华把手表和闹钟校准,但当闹钟走到下午1点时,手表显示的时间是1点5分,请问:当闹钟显示当天下午5点的时候,手表显示的时间是.58.田田晚上去超市买东西,到的时候是7点24分,买完出来的时候仍然是7点多,且分针和时针所夹的角度与到超市时相同.请问:田田出来的时候是7点几分买东西一共花了多少分钟59.6人在一环形路上散步,从同一点沿同一方向出发,各自速度保持不变,经过30分钟后,6人均匀分布在环形路线上且速度最快的人未追上速度最慢的人,当速度最快的人比速度最慢的多走一圈时,又过了_______分钟.60.水库A与小镇B之间有一条河道,当水库不放水时,河道里的谁不流动,当水库放水时,河道里的水匀速流动,在水库没有放水时,1河道长度,此时水库快艇M从A出发向B行驶了50分钟,经过了31河道长度,只用了20分钟,此时,艇长下令放水,快艇又行驶了3停机,任由快艇随河水漂流.求又经过多少时间,快艇到达B镇61.六年级的几位同学合拍了一张照片,已知冲一张底片需要元,洗一张相片需要元,在每位同学得到一张相片、共用一张底片的前提下,平均每人分摊的钱不足元,那么合影的同学至少有人62.“希望杯”竞赛结束后,小军和小楠对班上五名同学的名次进行了猜测.小军的猜测:小军第一名,小明第二名,小华第三名,小光第四名,小楠第五名;小楠的猜测:小华第一名,小光第二名,小明第三名,小楠第四名,小军第五名.考试成绩公布后,小军的猜测都不对,一个名次也没对上,而且相差一个名次的都没有.小楠猜对了一个人的名次,那么五个人的实际名次是.63.有一片草场,草每天旳生长速度相同,若20头牛12天可将草吃完,60只羊24天可将草吃完.(4只羊一天吃旳草量相当于1头牛一天吃旳草量)那么,12头牛和88只羊天可将草吃完.64.丁丁参加画展活动,画展9点开门,但早有人来排队入场,从第一个观众来到时起,若每分钟来的观众一样多,如果开3个入场口,9点9分就不再有人排队;如果开5个入场口,9点5分就没有人排队,则第一个观众到达的时间是.65.2006年夏天,我国某地区遭遇了严重干旱,政府为了解决村民饮水问题,在山下的一眼泉水旁修了一个蓄水池,每小时有40立方米泉水注入池中.第一周开动5台抽水机小时就把一池水抽完,接着第二周开动8台抽水机小时就把一池水抽完.后来由于旱情严重,开动13台抽水机同时供水,请问小时可以把这池水抽完.66.一项工程,第一天甲做,第二天乙做,第三天甲做,第四天乙做,这样交替轮流做,那么恰好用整数天完工;如果第一天乙做,第二天甲做,第三天乙做,第四天甲做,这样交替轮流做,那么完工时间要比前一种多半天.已知乙单独做这项工程需20天完成,甲单独做这项工程要天完成.67.爷爷对小明说:“我现在的年龄是你的7倍,过几年是你的6倍,再过若干年就分别是你的5倍、4倍、3倍、2倍.”那么小明今年岁.68.三只小猫在湖边钓了一堆鱼,实在太累了,就坐在河边的柳树下休息,一会儿都睡着了.第一只小猫醒了,看到其他两只小猫睡得正香,没有吵醒他们,就把鱼平均分成三分,自已拿一份走了,不一会儿,第二只小猫也醒了,他也把鱼平均分成三份,自已拿一份走了.太阳快落山了,第三只小猫才醒来.他想,我的两个同伴去哪了这么晚了,我得回家,于是,他又把鱼平均分成三份,自己拿一份.最后剩下8条鱼.他们这一天共钓了条鱼.69.某旅游景点的门票价格及优惠方法如下1~49人,每人12元;50~99人,每人10元;100人以上,每人8元.今有两个旅游团,如分别购票,两个团共需会门票1166元,如两个团合并购票,一共只需付880元,这两个旅游团分别多少人70.一块电子显示屏,只显示时与分,使用24小时计时制,例如凌晨0时显示为00:00,中午12时显示为12:00,夜里10时显示为22:00.如果在一天(24小时)中的随机一个时刻看显示屏,至少看到一个数字“1”的概率是多少71.一个读书小组共有6位同学,分别姓赵、钱、孙、李、周;共有6本书,书名分别是A,B,C,D,E,F,他们每人至少读过其中的1本书,已知赵,钱,孙,李,周分别读过其中的2,2,4,3,5本书,而书A,B,C,D,E分别被小组中的1,4,2,2,2位同学读过,那么吴同学读过本书,书F被小组中的位同学读过.72.某型飞机最多能连续飞行小时,若它飞去的速度是600千米/时,飞回的速度是550千米/时,那么这架飞机飞去千米就应返回.73.甲、乙、丙三人现在的年龄之和是113岁,当乙的年龄是丙的年龄的一半时,甲的年龄是17岁,那么乙现在的年龄是岁.74.在下表所示的33的九个方格中各有一个数,如果每行(横排),每列(竖排),每条对角线(斜排)的三个数的和相等,根据已知的三个数求x.75.熊猫妈妈有一对熊猫宝宝,熊猫妈妈的年龄是女儿的9倍多1岁,熊猫哥哥的年龄是妹妹的3倍少1岁,妈妈比儿子大14岁,问:熊猫妹妹的年龄是多少岁76.老师带着两名学生到离学校33千米远的博物馆参观,老师乘一辆摩托车,速度为25千米/小时,这辆摩托车后座可带一名学生,带学生速度为20千米/小时,学生步行的速度为5千米/小时.要使师生三人同时出发生都到达博物馆的时间不超过3小时,你能设计出一种方案77.动物园内有一个露天水池准备引进一些热带鱼,水池底部有若干同样大小的进水管,这天蓄水时恰好赶上下雨,假设每分钟注入水池的雨水量相同,如果打开24根进水管,5分钟能注满水池;如果打开12根进水管,8分钟能注满水池;如果打开8根进水管,多少分钟能将水池注满78.甲、乙、丙三人同时从A地出发到B地,他们的速度的比是4:5:12,其中甲、乙两人步行,丙骑自行车,丙可以带一人同行(速度保持不变).为了使三人在最短的时间内同时到达B地,则甲、乙两人步行的路程之比是_______.79.小周开车前往某会议中心,出发20分钟后,因为交通堵塞,中途延误了20分钟,为了按时到达会议中心,小周将车速提高了25%,最后按时到达,小周从出发到会议中心共用了分钟.80.一个人今年的年龄恰好等于他出生的数字的和,那么这个人今年的年龄是______.81.一个的长方体,将其表面涂成红色,并切成420个大小相同的小正方体,那么其中一面被涂成红色的小正方体有块.82.如图,正方形ABCD和正方形ECGF并排放置,BF与EC相交于点H,已知AB=6厘米,则阴影部分的面积是平方厘米.83.手工课上,小红用一张直径是20厘米的圆形纸片剪出如图所示的风车图案,则被剪掉的纸片的面积是平方厘米.84.一个长方体的长是12厘米,宽是10厘米,高也是整数厘米.在它的表面涂满颜色后,截成棱长是1厘米的小正方体,其中恰好一面有色的小正方体有448个.求原来长方体的体积与表面积85.如图所示,AB是半圆的直径,o是圆心,,M是的中点,H是弦CD的中点.若N是OB上一点,半圆的面积等于12平方厘米,则图中阴影部分的面积是平方厘米.86.在一个边长为2厘米的正方形内,分别以它的三条边为直径向内作三个半圆,则图中阴影部分的面积为平方厘米.87.求阴影部分的面积.(取)88.如图,长方形ABCD被剪成面积相等的甲、乙、丙、丁四块,若甲的长与宽的比为3:2,则丁的长与宽的比是多少89.某工人用木板钉成一个长方体邮件包装箱,并用三根长度分别为235厘米、445厘米、515厘米的尼龙带进行加固(如下图),若每根尼龙带加固时截头重叠都是5厘米,那么这个长方体包装箱的体积是立方米.90.下图是一个棱长为2厘米的正方体,在正方体上表面的正中,向下挖一个棱长为1厘米的正方体小洞,接着在1厘米的正方形小小洞的底面正中向下挖一个棱长为21厘米,洞,第三个正方形小洞的挖法和前两个相同为4那么最后得到的立体图形的表面积是多少平方厘米91.李老师在3个小箱中各放一个彩色球,让牛牛、丁丁、田田、阿普四人猜一猜各个箱子中放了什么颜色的球.牛牛说:“1号箱中放的是黄色的,2号箱中放的是黑色的,3号箱中放的是红色的.”田田说:“1号箱中放的是橙色的,2号箱中放的是黑色的,3号箱中放的是绿色的.”丁丁说:“1号箱中放的是紫色的,2号箱中放的黄色的,3号箱中放的是蓝色的.”阿普说:“1号箱中放的是橙色的,2号箱中放的是绿色的,3号箱中放的是紫色的.”李老师说:“你们中有一个人恰好猜对了两个,其余的三人都只猜对一个.”那么3号箱中放的是_________色的球.92.如图有六个正六边形和24个小圆圈,1~6已填入圆圈内,再将100~117填入圆圈内,使每个正六边形(中间六边形除外)六个圆圈内的数字之和都是a,则这个a最小是,a最大是.93.明明、冬冬、兰兰、静静、思思、毛毛六人参加晚会,见面时每两人都要握一次手,当明明握了5次手,冬冬握了4次手,兰兰握了3次手,静静握了2次手,思思握了1次手时,毛毛握了次手.94.A、B、C、D、E、F六个小朋友做游戏,每轮游戏都按照下面的箭头方向把原来手里的玩具传给另外一个小朋友:A→F,B→D,C→E,D→B,E→A,F→C.开始时,A、B、C、D、E、F拿着各自的玩具,传递完2002轮时,有多少个小朋友又拿到了自己的玩具95.2014年希望杯第一试的考试日期是2014年3月16日,可以记作,它的各个数位上的数字之和是17,按照这种记法,2014年所有日期的数字之和是17的共有多少天96.黑板上写有1,2,3,4…..,2011一串数.如果每次都擦取最前面的16个数,并在这串数的最后再写上擦去的16个数的和,直至只剩下1个数,则:最后剩下的这个数是多少97.在世界杯小组赛上,每四个队进行单循环比赛,每场比赛胜队得3分,负队得0分,平局两队各得1分.小组赛结束后,总积分高的两队出线,进入下一轮比赛.如果总积分相同,还要按进一步的规则排序.一个队为了晋级下一轮,至少要积几分才能保证必然出线98.6个人各拿一只水桶在自来水龙头前等候打水,他们打水所需要的时间分别是5分钟、4分钟、3分钟、10分钟、7分钟、6分钟,如果只有一个水龙头适当安排他们的打水顺序,就能够使他们总的等候时间最短,那么最短需要________分钟.99.古希腊杰出的数学家丢番图的墓碑上有一段话:“他生命的六分之一是幸福的童年.再活十二分之一,颊上长出了细细的胡须,又过了生命的七分之一他才结婚,再过了五年,他幸福的得了个儿子.可这孩子光辉灿烂的生命只有他父亲的一半.儿子死后,老人在悲痛中活了四年,结束了尘世的生涯.”你能根据这段话推算出丢番图活到了多少岁吗100.现在流行的变速自行车,在主动轴和后轴分别安装了几个齿数不同的齿轮.用链条连接不同搭配的齿轮,通过不同的传动比获得若干档不同的车速.“希望牌”变速自行车主动轴上有三个齿轮,齿数分别是48,36,24;后轴上有四个齿轮,齿数分别是36,24,16,12.这种变速车一共有多少种档不同的车速。

(完整word)2016年12月大学英语六级考试真题及答案(第一套),推荐文档

(完整word)2016年12月大学英语六级考试真题及答案(第一套),推荐文档

2016年12月大学英语六级考试真题(第1套)Part I Writing (30 minutes)Directions: For this part, you are allowed 30 minutes to write a short essay on invention. Youressay should include the importance of invention and measures to be taken to encourageinvention. You are required to write at least 150 words but no more than 200 words.Part ⅡListening Comprehension (30 minutes)Section ADirections: In this section, you will hear two long conversations. At the end of eachconversation, you will hear four questions. Both the conversation and thequestions will be spoken only once. After you hear a question, you mustchoose the best answer from the four choices marked A, B, C and D.Then mark the corresponding letter on Answer Sheet I with a single linethrough the centre.Questions 1 to 4 are based on the conversation you have just heard.1. A. It tries to predict the possible trends of global climate change.B. It studies the impacts of global climate change on people's lives.C. It links the science of climate change to economic and policy issues.D. It focuses on the efforts countries can make to deal with global warming.2. A. It will take a long time before a consensus is reached on its impact.B. It would be more costly to deal with its consequences than to avoid it.C. It is the most pressing issue confronting all countries.D. It is bound to cause endless disputes among nations.3. A. The transition to low-carbon energy systems.B. The cooperation among world major powers.C. The signing of a global agreement.D. The raising of people's awareness.4. A. Carry out more research on it.B. Cut down energy consumption.C. Plan well in advance.D. Adopt new technology.Questions 5 to 8 are based on the conversation you have just heard.5. A. When luck plays a role.B. what determines success.C. Whether practice makes perfect.D. How important natural talent is.6. A. It knocks at your door only once in a while.B. It is something that no one can possibly create.C. It comes naturally out of one's self-confidence.D. It means being good at seizing opportunities.7. A. Luck rarely contributes to a person's success.B. One must have natural talent to be successful.C. One should always be ready to seize opportunities.D. Practice is essential to becoming good at something.8. A. Putting time and effort into fun things is profitable.B. People who love what they do care little about money.C. Being passionate about work can make one wealthy.D. People in need of money work hard automatically.Section BDirections: In this section, you will hear two passages. At the end of each passage, you will hearthree or four questions. Both the passage and the questions will be spoken only once.After you hear a question, you must choose the best answer from the four choices markedA, B, C and D. Then mark the corresponding letter on Answer Sheet 1 with asingle line through the centre.Questions 9 to 12 are based on the passage you have just heard.9. A. The stump of a giant tree.B. A huge piece of rock.C. The peak of a mountain.D. A tall chimney.10. A. Human activity.B. Wind and water.C. Chemical processes.D. Fire and fury.11. A. It is a historical monument.B. It was built in ancient times.C. It is Indians' sacred place for worship.D. It was created by supernatural powers.12. A. By sheltering them in a cave.B. By killing the attacking bears.C. By lifting them well above the ground.D. By taking them to the top of a mountain.Questions 13 to 15 are based on the passage you have just heard.13. A. They will buy something from the convenience stores.B. They will take advantage of the time to rest a while.C. They will have their vehicles washed or serviced.D. They will pick up some souvenirs or gift items.14. A. They can bring only temporary pleasures.B. They are meant for the extremely wealthy.C. They should be done away with altogether.D. They may eventually drive one to bankruptcy.15. A. A good way to socialize is to have daily lunch with one's colleagues.B. Retirement savings should come first in one's family budgeting.C. A vacation will be affordable if one saves 20 dollars a week.D. Small daily savings can make a big difference in one's life.Section CDirections: In this section, you will hear three recordings of lectures or talks followed by three orfour questions. The recordings will be played only once. After you hear a question, youmust choose the best answer from the four choices marked A, B, C and D. Thenmark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 16 to 18 are based on the recording you have just heard.16. A. They should be done away with.B. They are necessary in our lives.C. They enrich our experience.D. They are harmful to health.17. A. They feel stressed out even without any challenges in life.B. They feel too overwhelmed to deal with life's problems.C. They are anxious to free themselves from life's troubles.D. They are exhausted even without doing any heavy work. ~18. A. They expand our mind.B. They prolong our lives.C. They narrow our focus.D.They lessen our burdensQuestions 19 to 22 are based on the recording you have just heard.19. A. It is not easily breakable.B. It came from a 3D printer.C. It represents the latest style.D. It was made by a fashion designer.20. A. When she had just graduated from her college.B. When she attended a conference in New York.C. When she was studying at a fashion design school.D. When she attended a fashion show nine months ago.21. A. It was difficult to print.B. It was hard to come by.C. It was hard and breakable.D. It was extremely expensive.22. A. It is the latest model of a 3D printer.B. It is a plastic widely used in 3D printing.C. It gives fashion designers room for imagination.D. It marks a breakthrough in printing material.Questions 23 to 25 are based on the recording you have just heard.23. A. They arise from the advances in technology.B. They have not been examined in detail so far.C. They are easy to solve with modern technology.D. They can't be solved without government support.24. A. It is attractive to entrepreneurs.B. It demands huge investment.C. It focuses on new products.D. It is intensely competitive.25. A.Cooperation with big companies.B. Recruiting more qualified staff.C. In-service training of IT personnel.D. Sharing of costs with each other.Part ⅢReading Comprehension (40 minutes) Section ADirections: In this section, there is a passage with ten blanks. Y ou are required to select one word foreach blank from a list of choices given in a word bank following the passage. Read thepassage through carefully before making your choices. Each choice in the bank isidentified by a letter. Please mark the corresponding letter for each item on Answer Sheet2 with a single line through the centre. You may not use any of the words in the bankmore than once.Questions 26 to 35 are based on the following passage.It is important that scientists be seen as normal people asking and answering important questions.Good, sound science depends on 26, experiments and reasoned methodologies. It requires awillingness to ask new questions and try new approaches. It requires one to take risks and experiencefailures. But good science also requires 27 understanding,clear explanation and concisepresentation.Our country needs more scientists who are willing to step out in the public 28 and offer theiropinions on important matters. We need more scientists who can explain what they are doing inlanguage that is 29 and understandable to the public. Those of us who are not scientists should alsobe prepared to support public engagement by scientists, and to 30 scientific knowledge into ourpublic communications.Too many people in this country, including some among our elected leadership, still do notunderstand how science works or why robust, long-range investments in research vitally matter. In the1960s, the United States 31 nearly 17% of discretionary (可酌情支配的) spending to research anddevelopment,32 decades of economic growth. By 2008, the figure had fallen into the single33 This occurs at a time when other nations have made significant gains in their own researchcapabilities.At the University of California (UC), we 34 ourselves not only on the quality of our research,but also on its contribution to improving our world. To 35 the development of science from the labbench to the market place, UC is investing our own money in our own good ideas.A. ArenaB. contextualC. ConvincingD. devotedE. DigitsF. hastenG. Hypotheses H. impairingI. Incorporate J. indefiniteK. Indulge L. inertiaM. Pride N. reapingO. WarrantSection BDirections: In this section, you are going to read a passage with ten statements attached to it. Eachstatement contains information given in one of the paragraphs. Identify the paragraphfrom which the information is derived. You may choose a paragraph more than once.Each paragraph is marked with a letter. Answer the questions by marking thecorresponding letter on Answer Sheet 2.Are We in an Innovation Lull?[A] Scan the highlights of this year's Consumer Electronics Show ( CES ), and you may get a slightfeeling of having seen them before. Many of the coolest gadgets this year are the same as thecoolest gadgets last year--or the year before, even. The booths are still exciting, and the demosare still just as crazy. It is still easy to be dazzled by the display of drones (无人机),3D printers,virtual reality goggles ( 眼镜) and more "smart" devices than you could ever hope to catalog.Upon reflection, however, it is equally easy to feel like you have seen it all before. And it ishardnot to think: Are we in an innovation lull ( 间歇期) ?[B] In some ways, the answer is yes. For years, smartphones, televisions, tablets, laptops anddesktops have made up a huge part of the market and driven innovation. But now these segmentsare looking at slower growth curves--or shrinking markets in some cases--as consumers are notas eager to spend money on new gadgets. Meanwhile, emerging technologies--the drones,3Dprinters and smart-home devices of the world--now seem a bit too old to be called "the next bigthing. "[C] Basically the tech industry seems to be in an awkward period now. "There is not any one-hitwonder, and there will not be one for years to come," said Gary Shapiro, president and chiefexecutive of the Consumer Technology Association (CTA). In his eyes, however, that doesn'tnecessarily mean that innovation has stopped. It has just grown up a little. "Many industries aregoing out of infancy and becoming adolescents," Shapiro said.[D] For instance, new technologies that are building upon existing technology have not found theirfooting well enough to appeal to a mass audience, because, in many cases, they need to workeffectively with other devices to realize their full appeal. Take the evolution of the smart home,for example. Companies are pushing it hard but make it almost overwhelming even to dip a toe inthe water for the average consumer, because there are so many compatibility issues to thinkabout. No average person wants to figure out whether their favorite calendar software works withtheir fridge or whether their washing machine and tablet get along. Having to install a different appfor each smart appliance in your home is annoying; it would be nicer if you could manageeverything together. And while you may forgive your smartphone an occasional fault, youprobably have less patience for error messages from your door lock.[E] Companies are promoting their own standards, and the market has not had time to choose awinner yet as this is still very new. Companies that have long focused on hardware now have tothink of ecosystems instead to give consumers practical solutions to their everyday problems."The dialogue is changing from what is technologically possible to what is technologicallymeaningful," said economist Shawn DuBravac. DuBravac works for CTA--which puts on theshow each year--and said that this shift to a search for solutions has been noticeable as heresearched his predictions for 2016.[F] "So much of what CES has been about is the cool. It is about the flashiness and the gadgets,"said John Curran, managing director of research at Accenture. "But over the last couple of years,and in this one in particular, we are starting to see companies shift from what is the largest screensize, the smallest form factor or the shiniest object and more into what all of these devices do thatis practical in a consumer's life. " Even the technology press conferences, which have been high-profile in the past and reached a level of drama and theatrics fitting for a Las Vegas stage, have adifferent bent to them. Rather than just dazzling with a high cool factor, there is a focus on thepractical. Fitbit, for example, released its first smartwatch Monday, selling with a clearpurpose--to improve your fitness--and promoting it as a "tool, not a toy. " Not only that, itsupports a number of platforms: Apple's iOS, Google's Android and Microsoft's Windows phone.[G] That seems to be what consumers are demanding, after all. Consumers are becoming increasinglybored with what companies have to offer: A survey of 28,000 consumers in 28 countries releasedby Accenture found consumers are not as excited about technology as they once were. Forexample, when asked whether they would buy a new smartphone this year, only 48 percent saidyes--a six-point drop from 2015.[H] And when it comes to the hyper-connected super-smart world that technology firms are paintingfor us, it seems that consumers are growing more uneasy about handing over the massive amountsof consumer data needed to provide the personalized, customized solutions that companies needto improve their services. That could be another explanation for why companies seem to bestrengthening their talk of the practicality of their devices.[I] Companies have already won part of the battle, having driven tech into every part of our lives,tracking our steps and our very heartbeats. Yet the persistent question of " Why do I needthat?"--or, perhaps more tellingly,"Why do you need to know that?"--dogs the steps of manynew ventures. Only 13 percent of respondents said that they were interested in buying asmartwatch in 2016, for example--an increase of just one percent from the previous year despite ayear of high-profile launches. That is bad news for any firm that may hope that smartwatches canmake up ground for maturing smartphone and tablet markets. And the survey found flat demandfor fitness monitors, smart thermostats (恒温器) and connected home cameras, as well.[J] According to the survey, that lack of enthusiasm could stem from concerns about privacy andsecurity. Even among people who have bought connected devices of some kind,37 percent saidthat they are going to be more cautions about using these devices and services in the future. A full18 percent have even returned devices until they feel they can get safer guarantees against havingtheir sensitive information hacked.[K] That, too, explains the heavy Washington presence at this year's show, as these new technologiesintrude upon heavily regulated areas. In addition to many senior officials from the Federal Tradeand Federal Communications commissions, this year's list of policy makers also includesappearances from Transportation Secretary Anthony Foxx, to talk about smart cities, and FederalAviation Administration Administrator Michael Huerta, to talk about drones.[L] Curran, the Accenture analyst, said that increased government interest in the show makes senseas technology becomes a larger part of our lives. "There is an incompatibility in the rate at whichthese are advancing relative to the way we're digesting it," he said. "Technology is becomingbigger and more aspirational, and penetrating almost every aspect of our lives. We have tounderstand and think about the implications, and balance these great innovations with thepotential downsides they naturally carry with them. "36. Consumers are often hesitant to try smart-home devices because they are worried aboutcompatibility problems.37. This year's electronics show featured the presence of many officials from the federal government.38. The market demand for electronic devices is now either declining or not growing as fast as before.39. One analyst suggests it is necessary to accept both tlie positive and negative aspects of innovativeproducts.40. The Consumer Electronics Show in recent years has begun to focus more on the practical value thanthe showiness of electronic devices.41. Fewer innovative products were found at this year's electronic products show.42. Consumers are becoming more worried about giving personal information to tech companies to getcustomized products and services.43. The Consumer Technology Association is the sponsor of the annual Consumer Electronics Show.44. Many consumers wonder about the necessity of having their fitness monitored.45. The electronic industry is maturing even though no wonder products hit the market.Section CDirections: There are 2 passages in this section. Each passage is followed by some questions orunfinished statements. For each of them there are four choices marked A, B, C andD. Y ou should decide on the best choice and mark the corresponding letter on AnswerSheet 2 with a single line through the centre.Passage OneQuestions 46 to 50 are based on the following passage.The Paris climate agreement finalised in December last year heralded a new era for climate action.For the first time, the world's nations agreed to keep global warming well below 2℃.This is vital for climate-vulnerable nations. Fewer than 4% of countries are responsible for morethan half of the world's greenhouse gas emissions. In a study published in Nature Scientific Reports,we reveal just how deep this injustice runs.Developed nations such as Australia, the United States, Canada, and European countries areessentially climate "free-riders": causing the majority of the problems through high greenhouse gasemissions, while incurring few of the costs such as climate change's impact on food and water. In otherwords, a few countries are benefiting enormously from the consumption of fossil fuels, while at thesame time contributing disproportionately to the global burden of climate change.On the flip side, there are many "forced riders", who are suffering from the climate changeimpacts despite having scarcely contributed to the problem. Many of the world's most climatevulnerable countries, the majority of which are African or small island states, produce a very smallquantity of emissions. This is much like a non-smoker getting cancer from second-hand smoke, whilethe heavy smoker is fortunate enough to smoke in good health.The Paris agreement has been widely hailed as a positive step forward in addressing climate changefor all, although the details on addressing "climate justice" can be best described as sketchy.The goal of keeping global temperature rise "well below" 2~C is commendable but the emissions-reduction pledges submitted by countries leading up to the Paris talks are very unlikely to deliver onthis.More than $100 billion in funding has been put on the table for supporting developing nations toreduce emissions. However, the agreement specifies that there is no formal distinction betweendeveloped and developing nations in their responsibility to cut emissions, effectively ignoring historicalemissions. There is also very little detail on who will provide the funds or, importantly, who isresponsible for their provision. Securing these funds, and establishing who is responsible for raisingthem will also be vital for the future of climate-vulnerable countries.The most climate-vulnerable countries in the world have contributed very little to creating theglobal disease from which they now suffer the most. There must urgently be a meaningful mobilisationof the policies outlined in the agreement if we are to achieve national emissions reductions whilehelping the most vulnerable countries adapt to climate change.And it is clearly up to the current generation of leaders from high-emitting nations to decidewhether they want to be remembered as climate change tyrants or pioneers.46. The author is critical of the Paris climate agreement becauseA. it is unfair to those climate-vulnerable nationsB. it aims to keep temperature rise below 2℃ onlyC. it is beneficial to only fewer than 4% of countriesD. it burdens developed countries with the sole responsibility47. Why does the author call some developed countries climate "free-riders"?A. They needn't worry about the food and water they consume.B. They are better able to cope with the global climate change.C. They hardly pay anything for the problems they have caused.D. They are free from the greenhouse effects affecting "forced riders".48. Why does the author compare the "forced riders" to second-hand smokers?A. They have little responsibility for public health problems.B. They are vulnerable to unhealthy environmental conditions.C. They have to bear consequences they are not responsible for.D. They are unaware of the potential risks they are confronting.49. What does the author say about the $100 billion funding?A. It will motivate all nations to reduce carbon emissions.B. There is no final agreement on where it will come from.C. There is no clarification of how the money will be spent.D. It will effectively reduce greenhouse emissions worldwide.50. what urgent action must be taken to realise the Paris climate agreement?A. Encouraging high-emitting nations to take the initiative.B. Calling on all the nations concerned to make joint efforts.C. Pushing the current world leaders to come to a consensus.D. Putting in effect the policies in the agreement at once.Passage TwoQuestions 51 to 55 are based on the following passage.Teenagers at risk of depression, anxiety and suicide often wear their troubles like a neon (霓虹灯)sign. Their risky behaviors--drinking too much alcohol, using illegal drugs, smoking cigarettes andskipping school--can alert parents and teachers that serious problems are brewing.But a new study finds that there's another group of adolescents who are in nearly as much dangerof experiencing the same psychiatric symptoms: teens who use tons of media, don't get enough sleepand have a sedentary (不爱活动的) lifestyle.Of course, that may sound like a description of every teenager on the planet. But the study warnsthat it is teenagers who engage in all three of these practices in the extreme who are truly in jeopardy.Because their behaviors are not usually seen as a red flag, these young people have been dubbed the"invisible risk" group by the study's authors."In some ways they're at greater risk of falling through the cracks," says researcher VladimirCarli. "While most parents, teachers and clinicians would react to an adolescent using drugs or gettingdrunk, they may easily overlook teenagers who are engaging in inconspicuous behaviors."The study's authors surveyed 12,395 students and analyzed nine risk behaviors, including excessivealcohol use, illegal drug use, heavy smoking, high media use and truancy (逃学). Their aim was todetermine the relationship between these risk behaviors and mental health issues in teenagers.About 58% of the students demonstrated none or few of the risk behaviors. Some 13% scored highon all nine of the risk behaviors. And 29%, the "invisible risk" group, scored high on three inparticular: They spent five hours a day or more on electronic devices. They slept six hours a night orless. And they neglected "other healthy activities."The group that scored high on all nine of the risk behaviors was most likely to show symptoms ofdepression; in all, nearly 15% of this group reported being depressed, compared with just 4% of thelow-risk group. But the invisible group wasn't far behind the high-risk set, with more than 13% of themexhibiting depression.The findings caught Carli off guard. "We were very surprised," he says. "The high-risk group andlow-risk group are obvious. But this third group was not only unexpected, it was so distinct and solarge--nearly one third of our sample--that it became a key finding of the study. "Carli says that one of the most significant things about his study is that it provides new early-warning signs for parents, teachers and mental health-care providers. And early identification, supportand treatment for mental health issues, he says, are the best ways to keep them from turning into full-blown disorders.51. What does the author mean by saying "Teenagers at risk of depression, anxiety and suicide oftenwear their troubles like a neon sign" (Lines 1 - 2, Para.1 ) ?A. Mental problems can now be found in large numbers of teenagers.B. Teenagers' mental problems are getting more and more attention.C. Teenagers' mental problems are often too conspicuous not to be observed.D. Depression and anxiety are the most common symptoms of mental problems.52. What is the finding of the new study?A. Teenagers' lifestyles have changed greatly in recent years.B. Many teenagers resort to drugs or alcohol for mental relief.C. Teenagers experiencing psychological problems tend to use a lot of media.D. Many hitherto unobserved youngsters may have psychological problems.53. Why do the researchers refer to teens who use tons of media, don't get enough sleep and have asedentary lifestyle as the "invisible risk" group?A. Their behaviors can be an invisible threat to society.B. Their behaviors do not constitute a warning signal.C. Their behaviors do not tend towards mental problems.D. Their behaviors can be found in almost all teenagers on earth.54. What does the new study find about the invisible group?A. They are almost as liable to depression as the high-risk group.B. They suffer from depression without showing any symptoms.C. They do not often demonstrate risky behaviors as their peers.D. They do not attract the media attention the high-risk group does.55. What is the significance of Vladimir Carli's study?A. It offers a new treatment for psychological problems among teenagers.B. It provides new early-warning signals for identifying teens in trouble.C. It may have found an ideal way to handle teenagers with behavioral problems.D. It sheds new light on how unhealthy behaviors trigger mental health problems.Part ⅣTranslation (30 minutes)Directions: For this part, you are allowed 30 minutes to translate a passage from Chinese intoEnglish. You should write your answer on Answer Sheet 2.随着生活水平的提高,度假在中国人生活中的作用越来越重要。

六年级2016试卷及答案【含答案】

六年级2016试卷及答案【含答案】

六年级2016试卷及答案【含答案】专业课原理概述部分一、选择题(每题1分,共5分)1. 下列哪个是六年级学生需要掌握的基础知识点?A. 分数和小数的转换B. 物理学的牛顿三大定律C. 化学反应的基本类型D. 生物的分类和特征2. 在六年级的科学课程中,下列哪个不是地球科学的内容?A. 地球的构造B. 气象现象C. 天文观测D. 植物生长过程3. 下列哪个是六年级数学中的代数知识点?A. 分数的加减乘除B. 多边形的内角和C. 函数的概念D. 立方体的体积计算4. 在六年级的语文课程中,下列哪个不是文言文的学习内容?A. 文言文的朗读和背诵B. 文言文的翻译C. 文言文的写作D. 文言文的语法分析5. 下列哪个是六年级英语课程中的重点语法知识点?A. 现在时态B. 过去时态C. 将来时态D. 被动语态二、判断题(每题1分,共5分)1. 六年级学生需要掌握的历史知识点包括中国的四大发明。

(×)2. 在六年级的地理课程中,学生需要了解世界各大洲的地理位置和特点。

(√)3. 六年级的数学课程中,学生需要掌握圆的面积和周长的计算方法。

(√)4. 六年级的语文课程中,学生需要学习现代文的阅读理解和写作技巧。

(√)5. 在六年级的英语课程中,学生需要掌握英语的基本语法和词汇。

(√)三、填空题(每题1分,共5分)1. 中国的四大发明包括造纸术、印刷术、火药和______。

2. 地球的公转周期是一年,自转周期是______。

3. 在平面几何中,三角形的内角和等于______度。

4. 六年级的语文课程中,学生需要学习唐代诗人杜甫的《春望》和______。

5. 在英语中,一般现在时的构成是主语+______+宾语。

四、简答题(每题2分,共10分)1. 请简述地球自转和公转的概念及其产生的地理现象。

2. 请列举并解释六年级数学中的三种不同类型的方程。

3. 请简述六年级语文课程中的文言文学习方法。

4. 请简述六年级英语课程中的基本语法知识点。

六年级第二届“睿达杯”数学智能竞赛一试 答案

六年级第二届“睿达杯”数学智能竞赛一试 答案

第二届“睿达杯”中小学数学智能竞赛一试六年级参考解答一. 填空题 (每小题5分, 共90分)题号 1 23 4567 8 9答案 残,阳,我8541 1513702021 196 6045题号 10 1112 13 14 15 16 17 18 答案13983875 7,15836.75312.5656② ⑥1. 根据文字循环的规律容易得到.2. 原式=1-8581218171716161515141413131211)()()()()()(=+-=+++-+++-+++.3. 2431=11×13×17, 551=11×13+11×17+13×17, 所以11+13+17=41.4. 从2,3,5,7,11,13六个数中,分别取13,11,7,5,3,2为分母,构成真分数的分子分别有 5,4,3,2,1,0个,所以共有真分数5+4+3+2+1+0=15(个).5. 要使结果是整数,并且要尽可能小,分子必须是14和35的最小公倍数,分母应为13和26的最大公因数. 因为[14,35]=70,(13,26)=13,所以结果应为1370. 6. 64÷(15-11)=16(支), 16÷(1-20%)=20(支).7. 6月份:20110601÷3余数为2,那么6月份中符合要求的数有10个,(30-2)÷3+1取整; 同理7月份中符合要求的数有11个.8. 由前一条件可知人数在181与240之间,由后一条件可知人数在141与210之间,所以人数应在181与210之间. 再根据“分的组数和每组人数刚好相等”可知具体人数是一个平方数,而14×14=196而得.9. 可由54304213=--x x , 解得15=x , 所以原分数为6045.10. 由这20个不等自然数的平均数是15.5,可知这20个自然数之和是310205.15=⨯.要想使最大的自然数尽可能大,就要使其他19个自然数尽可能小,而且还互不相等,所以从0至18的和是171,那么最大的自然数是310-171=139.11. 甲乙两个水杯原有水的数量相同。

六年级2016数学试卷【含答案】

六年级2016数学试卷【含答案】

六年级2016数学试卷【含答案】专业课原理概述部分一、选择题(每题1分,共5分)1. 下列哪个数字是偶数?A. 3B. 4C. 5D. 62. 1千米等于多少米?A. 100B. 1000C. 10000D. 1000003. 下列哪个图形是平行四边形?A. 正方形B. 长方形C. 三角形D. 圆形4. 下列哪个数是质数?A. 12B. 13C. 15D. 185. 下列哪个数是合数?A. 11B. 13C. 17D. 19二、判断题(每题1分,共5分)1. 0是最小的自然数。

()2. 1是最大的质数。

()3. 1千米等于1000米。

()4. 圆的周长等于直径乘以π。

()5. 平行四边形的对边相等。

()三、填空题(每题1分,共5分)1. 1米等于______分米。

2. 1吨等于______千克。

3. 平行四边形的对边______。

4. 圆的周长公式是______。

5. 两个质数相乘得到的数是______。

四、简答题(每题2分,共10分)1. 请简述质数和合数的区别。

2. 请简述平行四边形的性质。

3. 请简述圆的周长公式。

4. 请简述1千米等于多少米。

5. 请简述偶数和奇数的区别。

五、应用题(每题2分,共10分)1. 小明有10个苹果,他吃掉了3个,还剩下多少个苹果?2. 一个长方形的长是8厘米,宽是4厘米,求这个长方形的面积。

3. 一个圆的半径是5厘米,求这个圆的周长。

4. 一个平行四边形的底是10厘米,高是6厘米,求这个平行四边形的面积。

5. 下列哪个数是质数?11、12、13、14、15。

六、分析题(每题5分,共10分)1. 请分析下列数字中哪些是偶数,哪些是奇数,并说明原因:2、3、4、5、6。

2. 请分析下列图形中哪些是平行四边形,哪些不是,并说明原因:正方形、长方形、三角形、圆形。

七、实践操作题(每题5分,共10分)1. 请用直尺和圆规画一个半径为5厘米的圆。

2. 请用直尺和圆规画一个长方形,长为8厘米,宽为4厘米。

2016年第七届睿达杯三年级1试试卷

2016年第七届睿达杯三年级1试试卷

3.201 年 6 月1 日 的6 16年 是 星期 三 , 根 据这 一 信息 , ⒛ 的 7 月1 日 是 星期


4.某 水 果店里 有 5 箱 苹果 , 如 果从 每个箱 子里取 出 1 5 千 克苹 果 , 那 么 5个 箱 子里 剩下 的苹果质量之和正 好 等 于原来 的两箱 苹 果 。 原来 每个箱 子里 有 苹果,
第 1页 共3页

千克
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六年级第二届“睿达杯”数学智能竞赛二试 答案

六年级第二届“睿达杯”数学智能竞赛二试 答案

数,不符合要求; ② 若 m 3,n 1 ,则(2○3)△5=(3×2+1×3)△5=9△5= k ×9×5=45 k =90,解得 k 2 .所
第 2 页 共 4 页
以(1△2)○3=(2×1×2)○3=4○3=3×4+1×3=15. 15.将长方形地块如图标上字母 ABCDEF ,连结 BF ,则△ BDF 与△ CFD 面 积相等,减去共同的部分△ DEF 的面积,则△ BEF 与△ CED 面积相等等于 6 公顷;因为△ BCE 面积∶△ CED 面积=△ BEF 面积∶△ DEF 面积=6:4,所 以△ BCE 面积为 9 公顷,△ ABD 面积是 15 公顷,所以甲的面积是 11 公顷.
1 [ x2 h ( 2 x) 2 h] / 1 ( 1 x)2 1 h 19 (倍). 3 3 3 3 3
12.如图,作等腰梯形的高 AC ,在直角三角形 ABC 中,可求得 AB 3 厘米, 圆形经过部分的面积即是划线部分的面积: 6×2+3×2×3+3. 14× 2 =42. 56 (平方厘米) .
二、解答题(本大题共 2 小题,每小题 15 分,共 30 分) 19. 在 CD 上取 CF BA , 可得走 DF 的上坡比下坡多用 12 分钟 (0. 2 小时) , 所以 DF 长为 0.2÷ (3 =1.5(千米) .由此可得,李四从 D 到 C 比张三从 A 到 B 多用了 1.5÷3=0.5(小时) .
M (100 x 10 y z ) / xyz 100 / yz 10 / xz 1 / xy ,要使 M 最大就是要使 yz,xz,xy 最小,由于
x,y,z 均为自然数,所以 x y z 1 时 yz,xz,xy 有最小值,此时 M 有

2016年年测六年级数学试卷解析

2016年年测六年级数学试卷解析
527 六位数试除 527,商百位为 4,个位为 4,十位只能是 4 或 5,当十位

【考点】整除试除
为 4 时,六位数是 527× 444=233988,a+b+c=3+9+8=20,当十位为 5 时,六位数是 527× 454=239258,a+b+c=9+2+5=16.所以最大值为 20.
12. 在边长比为 1: 2 :1: 2 :1: 2 的宝石形 ABCDEF 中,取三个长边中点 G、H、I,连接与其 不相邻的第一个顶点,中间会交出一个正六边形,已知宝石形的面积是 26,那么,阴 影部分的面积是
2 (1 2 3) 1111

39996 ,0 在千位的所有三位数之和
38664 .
3) 111 1332 ,所有四位数之和 39996 1332
三、填空题(共 5 道小题,每题 10 分,共 50 分) 11. 已知六位数 23abc8 既能被 17 整除,又能被 31 整除,那么, a b c 的和的最大值 是 【难度】☆☆☆ 【答案】20 【分析】17 31
16 16 8 8 2 5 3 5 3
5 7 1 12 7 2 5 7 12
(2)计算: 1 1 3 【考点】提取公因数
4 5
5
【难度】☆☆ 【答案】12 【分析】原式= 1
4 12 1 12 12 12 3 2 7 12 5 7 5 7 7 7
2 【分析】插板法:三位数以内 a+b+c=9, C11 2 55 千位为 1 的四位数 a+b+c=8, C10
个.
45 千
位为 2 的四位数为 2007,1 个,55+45+1=101

(完整word版)第五届“睿达杯”小学生数学智能竞赛试题卷

(完整word版)第五届“睿达杯”小学生数学智能竞赛试题卷

第五届“睿达杯”小学生数学智能竞赛试题卷六年级第一试考试时间90分钟,满分120分一、填空题(本大题共18小题,每小题5,共90分)1.计算37 144792.20153的个位数字是3.浙江省信息技术奥赛获奖的86位同学来自12个不同的地区,那么至少有名同学来自同一个地区。

4.☆×(○﹢△)=209。

在☆,○,△中各填入一个质数,使上面算式成立,则☆=5.少先队员植树,如果每人种5棵,还有3棵没人种,如果其中2人各种3,其余的人各种6棵,这些树苗正好用完,那么有人参加种树。

6.如图,点A,B,C,D是正方形各边上三等分点,则小正方形的面积和大正方形的面积比是7.由4个完全相同的长方形拼成一个正方形,每个长方形的周长是20厘米,这个大正方形的面积平面厘米厘米9.育才学校数学教师人数是语文老师人数的58,如果有6位语文教师都改教数学,那语文教师人数是数学教师人数的67,原来语文教师有人10.一个长、宽和高分别为19厘米,14厘米和10厘米的长方体,现从它的上面尽可能大地切下一个正方体,然后从剩余的部分再尽可能大的切下一个正方体,最后再从第二次剩余的部分尽可能大地切下一个正方体,,最后一次切下的正方体的棱长是厘米11.某人从甲地去乙地,如果他从甲地先骑摩托车行12小时,再换骑自行车行9小时,恰好到达乙地;如果他从甲地先骑自行车行21小时,再换骑摩托车行8小时,也到达乙地,如果全程骑摩托车需要小时到达乙地12.一个长方体表面积是208平方厘米,底面周长是32厘米,底面积是24平方厘米,这个长方体的体积是立方厘米13.如图,是同一本书的不同摆放情况,根据所没得的数据,这张桌子的高度是厘米14. 如图,四边形ABCD的对角线AC、BD交于点O,如果我们把恰有1条边相等的2个三角形称为1对“共边三角形”,那么图中共有对“共边三角形”15. 如图,圆锥形容器中装有3升水,水面高度正好是圆锥高度的一半,这个容器还能装升水16.某校六年级共有三个班,已知一班、二班、三班各班的学生数相同,一班的男生数与二班的女生数相同,三班的男生占全年级男生的38,那么全年级女生占全年级学生的17.小勇开车去360千米的乙地旅游,已知他前一半时间每小时行驶100千米,后一半时间每小时行驶80千米,那么小勇后一半路程用了小时18.一项工程甲对做2天,乙队做5天,共完成全工程的45;甲对做5天,乙队做2天,共完成全工程的1960。

2016年六年级试卷数学【含答案】

2016年六年级试卷数学【含答案】

2016年六年级试卷数学【含答案】专业课原理概述部分一、选择题(每题1分,共5分)1. 下列哪个数字是偶数?A. 3B. 4C. 5D. 62. 一个正方形的四个角都是多少度?A. 90度B. 180度C. 270度D. 360度3. 下列哪个是质数?A. 12B. 13C. 15D. 184. 下列哪个是最大的两位数?A. 90B. 91C. 92D. 935. 下列哪个是正确的?A. 1千米=1000米B. 1千克=1000克C. 1米=1000毫米D. 1小时=60分钟二、判断题(每题1分,共5分)1. 正方形的四条边长度相等。

()2. 0是最小的自然数。

()3. 1千米等于1000米。

()4. 2的倍数都是偶数。

()5. 圆的周长等于直径乘以π。

()三、填空题(每题1分,共5分)1. 一个正方形的周长是20厘米,它的边长是____厘米。

2. 最大的两位数是____。

3. 1米等于____毫米。

4. 1千克等于____克。

5. 圆的面积公式是____。

四、简答题(每题2分,共10分)1. 请写出5个质数。

2. 请写出5个偶数。

3. 请写出5个奇数。

4. 请写出5个两位数。

5. 请写出5个三位数。

五、应用题(每题2分,共10分)1. 一个长方形的长是10厘米,宽是5厘米,请计算它的面积。

2. 一个圆的半径是4厘米,请计算它的周长。

3. 一个正方形的边长是8厘米,请计算它的周长。

4. 一个长方形的长是12厘米,宽是6厘米,请计算它的周长。

5. 一个圆的半径是5厘米,请计算它的面积。

六、分析题(每题5分,共10分)1. 请解释质数和合数的区别。

2. 请解释偶数和奇数的区别。

七、实践操作题(每题5分,共10分)1. 请用直尺和圆规画一个正方形。

2. 请用直尺和圆规画一个圆。

八、专业设计题(每题2分,共10分)1. 设计一个实验,验证物体在水平面上的滚动摩擦小于滑动摩擦。

2. 设计一个电路,当温度超过一定阈值时,自动报警。

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