一年级数学下册第1单元《认识图形(二)》周测培优卷新人教版.docx

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1认识图形(二) 周测培优卷一、我会填。 (每空 2 分,共 22 分)1红领巾是( )形,五角硬币的面是( )形。2. 如左图,4 个相同的( )形拼成了 1 个( )形。3最少用( )个同样的小正方形可以拼成一个长方形。4最少用( )个同样的小正方形可以拼成一个正方形。5用右边七巧板中的和可以拼成一个正方形, 也可以拼成一个 ( )形,还可以拼成一个( )形。6下列图形分别是由几个阴影部分的小三角形组成的?二、我会选。(把正确答案的序号填在括号里)(每题 4 分,共 12 分)1下面能拼成正方形的是( )。2下面能拼成平行四边形的是( )。3一个正方形对折一次后会变成( )。长方形 三角形 长方形或三角形三、我会分。(填序号)(每空 2 分,共 10 分)2四、我会连。(共 32 分)1小动物们分别需要哪组篱笆才能围好自己的院子?帮忙找一找。(12 分)2中间的图形分别是长方体的哪个面?请你连一连。(12 分)3下图中上面的图形分别是从下面哪一个图形上剪下来的?连一连。(8 分)五、我会分。(每题 4 分,共 24 分)34参考答案一、1三角 圆2三角 正方32445三角 平行四边68 6 10二、1. 2. 3.三、 四、123五、分法不唯一的有第 1.2.4.6 幅图,分法唯一的是第 3.5 幅图。

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