<div style="text-align: center;"><strong><font color="#ff0000">人教版小学三年级上数学“画图题”专项练习</font></strong></div><br><img src="//www.szxuexiao.com/uploadimages/2015/0104/201514133016.png?m=0.6173198029864579"><br><br><span style=" font-weight:bold; mso-font-kerning:; ">6、我是小小绘图员。</span><br><br><span style=" mso-font-kerning:; ">1.画一条长4厘米5毫米的线段。</span><br><br><span style=" mso-font-kerning:; ">2.画一条比8厘米短3厘米的线段。</span><br><br><span style=" font-weight:bold; mso-font-kerning:; ">7.在下面的方格中画出三个不同的平行四边形。</span><span style=" font-weight:bold; mso-font-kerning:; "></span><br><br><img src="//www.szxuexiao.com/uploadimages/2015/0104/201514133110.png?m=0.0047416603192687035"><br><br><span style="font-family: 宋体; font-weight: bold; ">8.下面是一张方格纸,每个小方格是边长为1厘米的正方形。请你在这张方格纸上画出一个周长是14厘米的长方形和一个周长为12厘米的正方形。</span><br><br><img src="//www.szxuexiao.com/uploadimages/2015/0104/201514133110.png?m=0.0047416603192687035"><br><br><span style=" font-weight:bold; mso-font-kerning:; ">9.在下面的格子图中画2个周长是20厘米的形状不同的长方形。(每个小格的边长都是1厘米)</span><span style=" font-weight:bold; mso-font-kerning:; "></span><br><br><img src="//www.szxuexiao.com/uploadimages/2015/0104/201514133110.png?m=0.0047416603192687035"><br><br><span style=" font-weight:bold; mso-font-kerning:; ">10.下面小正方形的边长是1厘米。</span><span style=" font-weight:bold; mso-font-kerning:; "></span><br><br><img src="//www.szxuexiao.com/uploadimages/2015/0104/201514133110.png?m=0.0047416603192687035"><br><br><span style=" mso-font-kerning:; ">(1)画一个边长是3厘米的小正方形。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">(2)画一个长5厘米,宽2厘米的长方形。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">(3)画一个周长是10厘米的四边形。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">(4)用阴影涂出其中一个图形的</span><span style=" mso-font-kerning:; "> 1/2 。</span><span style=" mso-font-kerning:; "></span><br><br><span style="font-family: 宋体; ">10.时针从4走到5,走了( )时;分针从4走到5,走了( )分;秒针从4走到5,走了( )秒。当钟面上3根针都重合时是( )时。</span><span style="font-family: 宋体; "></span><br><br><br><div style="text-align: center;"><font color="#38761d"><span style="font-family: 宋体; font-weight: bold;">“</span><span style="font-family: 宋体; font-weight: bold;">易错题</span><span style="font-family: 宋体; font-weight: bold;">”</span><span style="font-family: 宋体; font-weight: bold;">专项练习</span></font></div><br><span style="font-family: 宋体; font-weight: bold; ">一、填空。</span><span style="font-family: 宋体; font-weight: bold; "></span><br><br><span style=" ‘‘; mso-font-kerning:; ">1. </span><span style=" mso-font-kerning:; ">59</span><span style=" mso-font-kerning:; ">×</span><span style=" mso-font-kerning:; ">6</span><span style=" mso-font-kerning:; ">大约得(</span><span style=" mso-font-kerning:; "> </span><span style=" mso-font-kerning:; ">),可以把</span><span style=" mso-font-kerning:; ">59</span><span style=" mso-font-kerning:; ">看作(</span><span style=" mso-font-kerning:; "> </span><span style=" mso-font-kerning:; ">)来估算。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" ‘‘; mso-font-kerning:; ">2. </span><span style=" mso-font-kerning:; ">学校早上</span><span style=" mso-font-kerning:; ">8</span><span style=" mso-font-kerning:; ">:</span><span style=" mso-font-kerning:; ">30</span><span style=" mso-font-kerning:; ">上课,一节课是</span><span style=" mso-font-kerning:; ">40</span><span style=" mso-font-kerning:; ">分,应在( )下课。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" ‘‘; mso-font-kerning:; ">3. </span><span style=" mso-font-kerning:; ">1-2/5</span><span style=" mso-font-kerning:; ">,把</span><span style=" mso-font-kerning:; ">1</span><span style=" mso-font-kerning:; ">看作( ),减去(</span><span style=" mso-font-kerning:; "> </span><span style=" mso-font-kerning:; ">)个1/5</span><span style=" mso-font-kerning:; ">,得到(</span><span style=" mso-font-kerning:; "> </span><span style=" mso-font-kerning:; ">)个1/5</span><span style=" mso-font-kerning:; ">,就是(</span><span style=" mso-font-kerning:; "> </span><span style=" mso-font-kerning:; ">)。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" ‘‘; mso-font-kerning:; ">4. </span><span style=" mso-font-kerning:; ">两个边长是</span><span style=" mso-font-kerning:; ">3</span><span style=" mso-font-kerning:; ">厘米的下方形拼成一个长方形,周长减少了(</span><span style=" mso-font-kerning:; "> </span><span style=" mso-font-kerning:; ">)厘米。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" ‘‘; mso-font-kerning:; ">5. </span><span style=" mso-font-kerning:; ">水果店昨天进了</span><span style=" mso-font-kerning:; ">3</span><span style=" mso-font-kerning:; ">种水果,今天进了</span><span style=" mso-font-kerning:; ">5</span><span style=" mso-font-kerning:; ">种水果,今天进的水果中有</span><span style=" mso-font-kerning:; ">1</span><span style=" mso-font-kerning:; ">种昨天进过,那么水果店两天一共进了(</span><span style=" mso-font-kerning:; "> </span><span style=" mso-font-kerning:; ">)种水果。</span><br><br><span style=" ‘‘; mso-font-kerning:; ">6. </span><span style=" mso-font-kerning:; ">一米长的绳子,截下它的1/10</span>,应截下( )分米,截下它的1/2<ruby></ruby><ruby></ruby>,应截下( )分米。<br><br><span style=" ‘‘; mso-font-kerning:; ">7. </span><span style=" mso-font-kerning:; ">分针走1小格,秒针正好走( ),是( )秒。分针走1大格是( ),时针走1大格是( )。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" ‘‘; mso-font-kerning:; ">8. </span><span style=" mso-font-kerning:; ">把一个正方形对折再对折,每份是它的( )。</span><span style=" mso-font-kerning:; "> </span><span style=" mso-font-kerning:; "></span><br><br><span style=" ‘‘; mso-font-kerning:; ">9. </span><span style=" mso-font-kerning:; ">小明从一楼走到三楼用了8秒,照这样他从一楼走到五楼用( )秒。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">10.因数、因数、积都是同一个数,这个数是( )或( )。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">11.伸缩门是运用了平行四边形的( )特性。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">12.一只枕套长6分米,宽4分米,如果在它的四周镶上花边,至少需要( )分米的花边。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">13.用两个边长是4厘米的正方形拼成一个长方形,这个长方形的周长是( )厘米。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">14.1/10</span>这个分数中,( )是分子,( )是分母,读作 ( )。<br><br><span style="font-family: 宋体; font-weight: bold; ">二、判断。</span><span style="font-family: 宋体; font-weight: bold; "></span><br><br><span style=" mso-font-kerning:; ">1.用两根同样长的铁丝分别围一个长方形和一个正方形,正方形的周长比长方形的周长长。</span><span style=" mso-font-kerning:; "> </span><span style=" mso-font-kerning:; ">( </span><span style=" mso-font-kerning:; "> </span><span style=" mso-font-kerning:; "> )</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">2.把1厘米的绳子分成10段,每段长1毫米。( ) </span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">3.一个图形的四条边相等,这个图形一定是正方形。( ) </span><span style=" mso-font-kerning:; "></span><br><br><span style=" font-weight:bold; mso-font-kerning:; ">4.在一个长5米,宽4米的长方形中剪一个最大的正方形,这个正方形的边长是5米。</span><span style=" font-weight:bold; mso-font-kerning:; "> </span><span style=" font-weight:bold; mso-font-kerning:; "> </span><span style=" mso-font-kerning:; ">(</span><span style=" mso-font-kerning:; "> </span><span style=" mso-font-kerning:; "> </span><span style=" mso-font-kerning:; "> </span><span style=" mso-font-kerning:; ">)</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">5.一个正方形的边长增加2厘米,它的周长增加8厘米。</span><span style=" mso-font-kerning:; ">( ) </span><span style=" font-weight:bold; mso-font-kerning:; "> </span><span style=" font-weight:bold; mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">6.<img src="//www.szxuexiao.com/uploadimages/2015/0104/201514133532.png?m=0.5382031432818621"></span><span style=" font-weight:bold; mso-font-kerning:; "> </span><span style=" mso-font-kerning:; ">甲、乙两图的周长一样长。( )</span><span style=" mso-font-kerning:; "></span><br><br><span style=" font-weight:bold; mso-font-kerning:; ">7. </span><span style=" mso-font-kerning:; ">只有长方形和正方形有周长,其它图形没有周长。( )</span><span style=" font-weight:bold; mso-font-kerning:; "></span><br><br><span style=" font-weight:bold; mso-font-kerning:; ">三、选择。</span><span style=" font-weight:bold; mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">1.把一个长方形拉成一个平行四边形,周长( )。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">A、变大 B、不变 C、变小 </span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">2.将一张长方形纸对折2次,其中的1份是这张纸的 ( )。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">A、1/6</span><span style=" mso-font-kerning:; "> B、1/8</span><span style=" mso-font-kerning:; "> C、1/4</span><br><br><span style=" mso-font-kerning:; ">3.时针从第一个数字到第二个数字经过的时间是( )。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">A、60秒 B、60分 C、2小时</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">4.两个周长相等的长方形,( )拼成一个长方形。 </span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">A、一定能 B、一定不能 C、不一定能</span><br><br><span style=" mso-font-kerning:; ">5.</span><span style=" mso-font-kerning:; ">把四个边长为1厘米的小正方形拼成一个大正方形,周长是( </span><span style=" mso-font-kerning:; "> </span><span style=" mso-font-kerning:; "> )。</span><span style=" mso-font-kerning:; "><br></span><span style=" mso-font-kerning:; "><br></span><div><span style=" mso-font-kerning:; ">A、10厘米 B、8厘米 C、12厘米</span><span style=" mso-font-kerning:; "><br></span><span style=" mso-font-kerning:; "><br></span><div><span style=" mso-font-kerning:; ">6.下面由4个边长为1厘米的正方形摆成的图形中,( )的周长最短。</span><span style=" mso-font-kerning:; "></span><br><br><img src="//www.szxuexiao.com/uploadimages/2015/0104/201514133724.png?m=0.3383968996349722"><br><br><span style="font-family: 宋体; ">7.把一个大长方形剪成两个小长方形后,周长之和比原来的长方形周长( )</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">A、增加 B、减少 C、相等</span><span style="font-family: 宋体; "></span><br><br><span style=" font-weight:bold; mso-font-kerning:; ">补充练习:</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">1.在边长是</span><span style=" mso-font-kerning:; ">1</span><span style=" mso-font-kerning:; ">厘米的方格纸上,画周长是</span><span style=" mso-font-kerning:; ">14</span><span style=" mso-font-kerning:; ">厘米的长方形,有几种画法,试一试。</span></div><div><span style=" mso-font-kerning:; "></span><br>
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<br><span style=" mso-font-kerning:; ">2.操作题:</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">1)画一个长为4厘米,宽为2厘米的长方形,</span><span style=" mso-font-kerning:; ">并计算出它的周长是多少?</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">2)画一个边长为30毫米的正方形,并求出周长。</span><span style=" mso-font-kerning:; "></span><br><br></div></div>
三年级上