四川专科分数线-大学生消费情况调查报告

学校 姓名 班级___________ 座位号
……装…………订…………线…………内…………不…………要…………答…………题……



―、填空。（每空1分，共16分）
1.儿童的负重最好不要超过体重的
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3
。如果长期背负过重物体，会导致腰痛及背痛，严重的
20
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甚至会妨碍骨骼成长。小明的体重是35kg，他负重最好不要超过（ ）kg。
2.如图，笑笑站在淘气的北偏东70°方向上，淘气站在笑笑的（

）方向上。

3.—个长方形的长为20cm,宽为15cm,则长宽之比是（

），比值是（ ）。
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4.妈妈按 2:5（浓缩液和水的体积之比）的比配制了一瓶350mL的稀释液，其中浓缩液的体积
是（ ），水的体积是（ ）。
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5.看图列式：（ ）。
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6.如图，半径r＝（ ）cm，半圆的面积是（ ）cm²。
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7.在探究圆的面积时，我 们是把一个圆分成若干（偶数）等份，剪开后，用这些近似于等腰三
角形的小纸片拼成了一个近似的长方 形。已知圆的半径是r，则长方形的长近似等于（ ），宽
近似等于（ ）。
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8.为了缓解交通压力，方便市民出行，某市正在进行道路拓宽。东大街的路宽由原来的20 m
增加到27m，拓宽了（ ）m，拓宽了（ ）％。
9.
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（1）请你根据上面图形与数的规律接着画一画，填一填。
（2）这样排列下去，第12个数是（
二、判断。（每小题1分，共5分）
1．1的倒数是1，0的倒数是0。 （ ）
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）。
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2.王涛投篮 的命中率是60%，这里60%表示投中的占没有投中篮数的
3.在同一个圆中，扇形的大小与这个扇形 的圆心角的大小有关。
60
。（ ）
100
（ ）
4 .400m环形跑道的每条跑道宽1.25m，相邻跑道上每一道的起跑线一定比前一道提前了约
7.8 5m。 （ ）
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5.体育老师想了解六（1 ）班学生喜欢每种运动项目的人数与全班人数之间的关系,选用扇形统
计图更合适。（ ）
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三、选择。（每小题1分，共5分）
）。
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1.把4:25化成后项为100的比，是（
A.100:625 B.4 :100

C.16:100
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2.挖一条水渠，王叔叔每天挖整条水渠的
天能挖完。
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，李叔叔每天挖整条水渠的。两人合作，（ ）
6
12


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A.6 B.4 C.3
3.《数学魔术：84个神奇的数学小魔术》一书共24章，介 绍了80多个魔术戏法。小红已看
了全书章节的25%，还有（
A.18
）章没有看完。
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B.12 C.6
）米。
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4.一个圆形茶几桌面的周长是9.42米，它的直径是（
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A.1.5 B.3 C.4
5.小梁和哥哥、姐姐一起步行到离家600 m远的图书馆看书，用时15分钟。姐姐到了图书馆后直接返回家里，还是用了15分钟。小梁和哥哥一起在图书馆看了30分钟的书。然后小梁跑
步回 到家中，用了5分钟，而哥哥是走回家中，用了10分钟。下面图形表示小梁离家时间和
离家距离的关系 的是（ ）。
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四、计算。（共22分）
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1.计算下列各题，你认为怎样简便就怎样算。
①



④9×



2.解下列方程。
①x÷5＝



五、动手操作。（共14分）
1.
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635220111
×1.5× ②÷－ ③15÷（－）
93
763102
99941523
＋÷9＋ ⑤×[（＋）÷]
86
13131356

5848
②x＋0.2＝ ③x－x＝4.2
9
15515

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（1）学校在小明家（ 偏 ）方向上，距离（ ）米。
（2）小明从家出发向南偏西60°行驶500米到图书馆，然后向北偏西 45°行驶600
米到小米家。请你根据描述把小明走的路线图画完整。
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2.画一个直径是3cm的圆，用字母0和d分别标出它的圆心 和直径，再在圆中画一个圆心
角是120°的扇形。



3.右图是小东家某一月的各种生活支出情况统计图。
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（1）这是（ ）统计图，从图中可知小东家这个月（ ）支出最多。
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（2）请将右图补充完整。如果小东家这个月的支出是3600元，那么赡养老人的支出是
（ ）元 ，教育支出是（ ）元。
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（3）请你提出一个数学问题并解答。
六、解决问题。（共23分）
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1.某校图书馆有科普读物240本，占全部图书的
故事书？

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23
，故事书占全部图书的。图书馆有多少本
8
7

2.五、六年级同学共收集了360个易拉罐，六年级同学收集的易拉罐数是五年级的
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7
。五、
11

六年级各收集了多少个易拉罐？





用你自己喜欢的方法检验一下上面答案的合理性：





3.淘气家的菜地共600m²,其中种白菜的面积占总菜地面积的30%，剩下的按3:4的面积比种 了
菠菜和萝卜。萝卜的面积是多少平方米？






4.某品牌的数码相机原售价是4800元，现进行促销活动，降价10%，在此基础上商场 又返还
售价5%的现金。此时买这个品牌的数码相机，应付多少钱？







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5.右图中的大圆半径等于小圆的直径，请你求出阴影部分的面积。
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参考答案

一、1.
21

4
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2.南偏西70°
3.4:3

4
3
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4.100mL 250mL 【解析】本题考查按比分配求各部分的量。350mL稀释液中，浓缩液
的体积为35 0×
25
＝100（mL），水的体积为350×＝250（mL）
2＋52＋5
2
5.90÷（1－）
5
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6.4 25.12 【解析】本题考查半圆面积的计算。圆的面积S＝πr²，由图知 圆的半径
r＝4cm，所以半圆的面积为3.14×4²÷2＝25.12（cm²）。
7.πr r
8.7 35
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9.（1）
二、1.× 2.× 3.√
（2）78
4.√ 【解析】本题考查利用圆周长公式确定起跑线。设前一道环形跑道的半径是r m，
则后一道跑道的半径为（r＋1.25）m，前一道跑道比后一道跑道圆弧段少3.14×2×（r ＋1.25）
－3.14×2×r＝7.85（m）。因此相邻跑道上每一道起跑线要比前一道提前约7 .85m。
5.√
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三、1.C 【解析】 本题考查比的基本性质。比的前项和后项同时乘或除以相同的数（0除外），
比值不变。4:25的后项 边为100时，扩大到原来的4倍，要使比值不变，前线也应扩大到原
来的4倍，即变为16.
2.B 3.C
4.B 【解析】本题考查已知圆的周长求直径。圆的周长C＝πd＝2πr ，所以圆形茶几
桌面的直径为9.42÷3.14＝3（米）
5.C
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四、1. ①
635635
×1.5×＝××1.5＝5×1.5＝7.5
7676
2201311
②÷－ ＝－＝
9
3101010
5
111
③15÷（－）＝15÷＝90
36
2
999991991991
④9×＋÷9＋＝9×＋×＋＝×（9＋＋1）＝ ×＝7
9
1313131313
9
1313139
41
⑤ ×[（＋）÷]＝×[÷]＝×＝
86245
565654
259
2.①x＝ ②x＝ ③x＝9
8
9
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五、1.（1）西 北 35° 600
（2）
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2.


3.（1）扇形 日用品
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（2） 576 720
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（3）服装支出比教育支出少百分之几？
（20%－10%）÷20%＝50%（答案不唯一）
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六、1.240÷
23
×＝315（本）
7
8
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2.解：设五年级收集了x个易拉罐，则六年级手机了
x＋
7
x个。
11
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77
x＝360 x＝220 x＝140
1111
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140＋220＝260（个），即五、六年级共手机了3 60个易拉罐，140÷220＝
级同学收集的易拉罐数是五年级的
3.600×（1－30% ）×
7
，即六年
11
7
。（答案合理即可）
11
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4
＝240（平方米）
3＋4

4.4800×（1－10%）×（1－5%）＝4104（元）
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5.3.14×8²－3.14×（8÷2）²＝150.72（cm²）
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