<span>一、</span><strong><span>填空(每小题2分,共24分</span></strong><br><br><span>1</span>.<span>7/8 =( )÷( )=( )%=( ):40</span><br><br><span>2.</span><span>把5吨煤平均分成9份,每份煤重( ),每份是这堆煤的( )。</span><span><br></span><span><br></span><div><span>3</span><span>.( )比20米多20%,3吨比( )千克少40%。</span><span><br></span><span><br></span></div><div><span>4.9 ÷( )= 0.75 =( ):24 =( )%</span><span><br></span><span><br></span></div><div><span>5.0.75: 1化成最简整数比是( ),比值是( )。</span><span><br></span><span><br></span></div><div><span>6.</span><span>( )和它的倒数的和是2。</span><span> </span><span><br></span><span><br></span></div><div><span>7.</span><span>走一段路,甲用了15分钟,乙用了20分钟,甲、乙的速度比是 ( )。 </span><span><br></span><span>8.</span><span>等底等高的平行四边形比三角形的面积大( )%。</span><span><br></span><span><br></span></div><div><span>9.</span><span>一根绳子长10米,用去25% ,剩( )米</span><br><br><span>10.用圆规画一个周长为18.84厘米的圆,圆规两脚间的距离应取( )厘米,所画圆的面积是( )平方厘米。</span><span><br></span><span><br></span></div><div><span>11.六(1)班今天出勤48人,有2人因病请假,今天六(1)班学生的出勤率是( )</span><span><br></span><span><br></span></div><div><span>12.</span><span>一个半圆的半径是6dm,它的周长是( )dm,面积是( )dm2</span><span>。</span><br><br><strong><span>二、判断。(10分)</span></strong><span> </span><strong></strong><br><br><span>1</span>.<span>甲数和乙数的比是4:5,那么乙数比甲数多25%。( )</span><span><br></span><span><br></span></div><div><span>2.一个数除以分数的商不一定比原数大。( )</span><span><br></span><span><br></span></div><div><span>3.</span><span>圆的周长总是它的直径的3.14倍。( )</span><span><br></span><span><br></span></div><div><span>4.</span><span>一个真分数乘一个假分数,积一定大于这个真分数。( )</span><span><br></span><span><br></span></div><div><span>5.</span><span>得数为1的两个数,互为倒数。( )</span><span><br></span><span><br></span></div><div><span>6.</span><span>某人栽了101棵树,全部成活,其成活率为101%。( )</span><br><br><span>7.加工97个零件全部合格,合格率是97%。( )</span><span><br></span><span><br></span></div><div><span>8.</span><span>周长相等的正方形和圆,面积也相等。( )</span><span><br></span><span><br></span></div><div><span>9.</span><span>如果a×23 =b×35 (a、b都不等于0),那么a<b。( )</span><span> </span><br><br><span>10.一杯糖水含糖率是20%,喝了一半后,剩下糖水的含糖率是10%。( )</span><br><br><strong><span>三、选择。(每小题1分,共12分)</span></strong><span><br></span><span><br></span></div><div><span>1.</span><span>在3.14,314%,π这三个数中,最大的数是( )</span></div><div><span><br></span><span>A、3.14</span> <span>B、314%</span> <span>C、π</span><br><br><span>2</span>.<span>一个三角形,三个内角的度数比是1:3:5,这个三角形是( )</span><br><br><span>A、锐角三角形</span> <span>B、直角三角形</span> <span>C、钝角三角形</span><span><br></span><span><br></span></div><div><span>3.</span><span>甲数的75%与乙数的35% 相等,甲数( )乙数。</span></div><div><span><br></span></div><div><span>A、></span> <span>B、<</span> <span>C、=</span><span><br></span><span><br></span></div><div><span>4.</span><span>100克糖水中含糖10克,则水与糖的比是( )</span></div><div><span><br></span></div><div><span>A、10:1</span> <span>B、11:1</span> <span>C、9:1</span><span><br></span><span><br></span></div><div><span>5.</span><span>在一张长6厘米,宽4厘米的长方形纸上剪一个面积最大的圆,这个圆的面积是( )cm2。</span><span><br></span><span><br></span></div><div><span>A、28.26</span> <span>B、12.56</span> <span>C、50.24</span><span> </span><span><br></span><span><br></span></div><div><span>6.</span><span>1000元存入银行3年,到期时取出1045元,则取出的1045元叫( )</span><span><br></span><span><br></span></div><div><span>A、本金</span> <span>B、利息</span> <span>C、本金和利息</span><span><br></span><span><br></span></div><div><span>7.</span><span>一项工程,甲队独做10天完成,乙队独做16天完成,甲队的工作效率比乙队快( )</span><span><br></span><span><br></span></div><div><span>A、37.5%</span> <span>B、60%</span> <span>C、62.5%</span><span><br></span><span><br></span></div><div><span>8.下列说法错误的是( )</span><span><br></span><span><br></span></div><div><span>A、半径一定比直径短</span> <span>B、圆具有对称性</span> <span>C、圆是曲线图形</span><br><br><span>9.周长相等时,( )的面积最大。 </span><span><br></span><span><br></span></div><div><span>A、圆</span> <span>B、长方形</span> <span>C、正方形</span><span><br></span><span><br></span></div><div><span>10.把30%的百分号去掉,原来的数就( )。</span><span><br></span><span><br></span></div><div><span>A、扩大100倍</span> <span>B、缩小100倍</span> <span>C、不变</span><span><br></span><span><br></span></div><div><span>11. 一根绳子剪成两段,第一段长37 米,第二段占全长的37% ,两段相比( )。 </span><span><br></span><span><br></span></div><div><span>A.第一段长</span> <span>B.第二段长</span> <span>C.一样长</span> <span>D.无法确定 </span><span><br></span><span><br></span></div><div><span>12、要剪一个面积是12.56平方厘米的圆形纸片,至少需要面积是( )平方厘米的正方形纸片。</span></div><div><span><br></span></div><div><span>A.12.56 B.14</span> <span>C.16</span> <span>D.20</span><span><br></span><strong><span><br></span></strong></div><div><strong><span>五、按要求完成(8分)</span></strong><span> </span><strong><span><br></span></strong><span>1、画一个半径2厘米的圆,并画出这个圆的互相垂直的一组对称轴。(3分)</span><br><br><span>2、求下面图形阴影部分的面积(5分)</span><br><br><img src="//www.szxuexiao.com/uploadimages/2017/1224/20171224203727.png?m=0.10495784939354924"><br><br><strong><span>六、解决问题。(每小题5分,共30分)</span></strong><strong></strong><br><br><span>1.</span><span>某地原来有鱼类约280种,由于环境污染等多种原因,现在约有270种,现在比原来大约减少了百分之几?(百分号前保留一位小数)</span><br><br><span>2.修一条3000米长的公路,第一期完成了40%,第二期完成了30%,第一期比第二期多修多少米?</span><br><br><span>3、</span><span>一个长方形的周长是48厘米,长和宽的比是7:5,这个长方形的面积是多少?</span><br><br><span>4、</span><span>修一条公路,由甲、乙两队合修,甲队和乙队修路的比是5:3,已知甲队比乙队多修24米,这条公路全长多少米?</span><br><br><span>5、</span><span>用84厘米长的铁丝围成一个直角三角形,这个三角形三条边长度的比是3:4:5.这个三角形的面积是多少平方厘米?</span><br><br><span>6、一个圆形花坛,原来直径是15米,扩建后的直径与原来的比是4:3。扩建后花坛的周长和面积各是多少?</span><br><br><strong><span><br></span></strong></div><div><div style="text-align: center;"><strong><font color="#38761d">参考答案及评分建议</font></strong></div><br><strong><span>一、填空题(每小题2分,共24分)</span></strong><strong></strong><br><br><span>1、7 8 87.5 35</span></div><div><span><br></span></div><div><span>2、5</span><span>/9</span><span>吨 1</span><span>/</span><span> 9</span></div><div><span><br></span></div><div><span>3、24米 5000</span></div><div><span><br></span></div><div><span>4、12 18 75</span><br><br><span>5、3:4 3/4</span></div><div><span><br></span></div><div><span>6、1</span></div><div><span><br></span></div><div><span>7、4:3</span></div><div><span><br></span></div><div><span>8、100</span></div><div><span><br></span></div><div><span>9、7.5</span></div><div><span><br></span></div><div><span>10、3 28.26</span><br><br><span>11、96%</span></div><div><span><br></span></div><div><span>12、37.68 113.04</span><br><br><strong><span>二、</span><span>判断题(每题1分,共10分)</span></strong><br><br><span>1、</span><span>√</span><span> 2、</span><span>√</span><span> 3、</span><span>×</span><span> 4、</span><span>×</span><span> 5、</span><span>×</span><span> 6、</span><span>×</span><span> 7、</span><span>×</span><span> 8、</span><span>×</span><span> 9、</span><span>×</span><span> 10、</span><span>×</span><br><br><span><strong>三、选择题(每题1分,共12分)</strong></span><br><br><span>1、C 2、C 3、B 4、C 5 、B 6 、C 7 、B 8 、A 9、A </span><br><span>10、A 11 、A 12、C</span><br><br><span><strong>四、计算题(共16分)</strong></span><br><br><span>1、直接写得数:(4分)</span><span> </span><br><br><span>408 33.5 60% 45 64 5</span><br><br><span>2、简算:(每题2分,共12分)</span><br><br><span>3360 11 966 550 143900 9999</span><br><br><strong><span>五、</span><span>按要求完成(1题3分,2题5分)</span></strong><br><br><span>1、 图略 2、1.72平方分米。</span><br><br><strong><span>六 、解决问题(每题5分,共30分)</span><span> </span></strong><br><br><span>1、</span><span>约等于3.6%。</span><br><br><span>2、</span><span>300米。</span><br><br><span>3、</span><span>140平方厘米。</span><br><br><span>4、</span><span>96米。</span><br><br><span>5、</span><span>294平方米。</span><span> </span><br><br><span>6、</span><span>周长:62.8米;面积314平方米。</span><br><br></div>
六年级上