<strong><span>一、知识宫探秘。(每空1分</span><span>，</span><span>共21分)</span></strong><br><br><strong><span>1</span></strong><span>.</span><span>下面的图形各是几边形</span><span>，</span><span>把结果写在括号里。</span><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/0719/2018719103854.png?m=0.8502818851627381"><br><br><strong><span>2.</span></strong><span>数一数下面的图形各有几条边</span><span>，</span><span>照样子写在图形上</span><span>，</span><span>再填表。</span><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/0719/2018719103958.png?m=0.7781578191868566"><br><br><strong><span>二、小包公断案。(对的在括号里打“√”</span><span>，</span><span>错的打“×”)(每题1分</span><span>，</span><span>共5分)</span></strong><br><br><strong><span>1</span></strong><span>．</span><span>平行四边形是由四条线段围成的图形。( )</span><br><br><strong><span>2</span></strong><span>．</span><span>平行四边形的四条边一定都不相等。( )</span><br><br><strong><span>3</span></strong><span>．</span><span>四边形一定是平行四边形。( )</span><br><br><strong><span>4</span></strong><span>．</span><span>两个完全一样的三角尺可以拼出平行四边形。( )</span><br><br><strong><span>5</span></strong><span>．</span><span>长方形和正方形都是四边形。( )</span><br><br><strong><span>三、选择题。(把正确答案的序号填在括号里)(每题2分</span><span>，</span><span>共10分)</span></strong><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/0719/201871910419.png?m=0.09488609578931384"><br><br><strong><span>3</span></strong><span>．</span><span>一张长方形的纸</span><span>，</span><span>剪去一个角后</span><span>，</span><span>剩下的部分是( )。</span><br><br><span>A．</span><span>三角形 B．四边形 C．五边形 D．以上都有可能</span><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/0719/201871910422.png?m=0.3372659607045012"><br><br><span><strong>四、小小操作手。(共64分)</strong></span><br><br><strong><span>1</span></strong><span>．</span><span>(8分)下图是东山街街心花园示意图</span><span>，</span><span>请你先将四边形建筑涂成红色</span><span>，</span><span>五边形建筑涂</span><span>成蓝色，六边形建筑涂成黄色，再在花坛右边的圆形处设计一个五边形的售报亭。</span><br><br><span><img src="https://www.szxuexiao.com/uploadimages/2018/0719/2018719104244.png?m=0.5210710791874806"> </span><br><br><strong><span>2</span></strong><span>．</span><span>(6分)在下面的方格纸上画一个四边形、一个五边形和一个六边形。</span><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/0719/2018719104320.png?m=0.9760886059103935"><br><br><strong><span>3</span></strong><span>．</span><span>(6分)把下面每个图形都分成三角形</span><span>，</span><span>最少能分成几个？</span><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/0719/2018719104413.png?m=0.8508351584935248"><br><br><strong><span>4</span></strong><span>．</span><span>(6分)在下面的图形中画一条线</span><span>，</span><span>分成2个三角形。</span><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/0719/2018719104450.png?m=0.49977381846671975"><br><br><strong><span>5</span></strong><span>．</span><span>(6分)在下面的图形中画一条线</span><span>，</span><span>分成两个四边形。</span><br><br><span><img src="https://www.szxuexiao.com/uploadimages/2018/0719/2018719104527.png?m=0.7851726117007904"> </span><br><br><strong><span>6</span></strong><span>．</span><span>(6分)在下面的四边形中画一条线</span><span>，</span><span>使它符合下面的要求。</span><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/0719/2018719104615.png?m=0.05853758931284725"><br><br><strong><span>7</span></strong><span>．</span><span>(12分)沿着虚线折一折</span><span>，</span><span>再填空。</span><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/0719/201871910480.png?m=0.25917698731104966"><br><br><strong><span>8</span></strong><span>．</span><span>(6分)下面的图形是平行四边形吗？怎样改才能成为平行四边形？</span><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/0719/2018719104858.jpg?m=0.3739587462682985"><br><br><strong><span>9</span></strong><span>．</span><span>(8分)数一数</span><span>，</span><span>下列图形中各有多少个平行四边形？</span><br><br><span><img src="https://www.szxuexiao.com/uploadimages/2018/0719/2018719104956.png?m=0.8917257651390071"> </span><br><br><strong>智力冲浪</strong><br><br><span>(10分)用左边的两个三角形可以拼成几种平行</span><span>四边形，试着画一画。</span><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/0719/2018719105053.png?m=0.9609622487704175"><br><br><br><div style="text-align: center;"><strong><font color="#38761d">2018年小学二年级数学上册《第二单元》测试题参考答案</font></strong></div><br><span><strong>一、</strong></span><div><strong><span><br></span></strong></div><div><strong><span>1.</span></strong><span>四 六 五 四 五 八 四 八 </span></div><div><strong><span><br></span></strong></div><div><strong><span>2.</span></strong><span>图略 3 5 2 10 </span></div><div><span><br></span></div><div><span><strong>二、</strong></span></div><div><strong><span><br></span></strong></div><div><strong><span>1.</span></strong><span>× </span><strong><span>2.</span></strong><span>× </span><strong><span>3.</span></strong><span>× </span><strong><span>4.</span></strong><span>√ </span><strong><span>5.</span></strong><span>√ </span></div><div><span><br></span></div><div><span><strong>三、</strong></span></div><div><strong><span><br></span></strong></div><div><strong><span>1.</span></strong><span>B </span><strong><span>2.</span></strong><span>C </span><strong><span>3.</span></strong><span>D </span><strong><span>4.</span></strong><span>C </span><strong><span>5.</span></strong><span>B </span></div><div><span><br></span></div><div><span><strong>四、</strong></span></div><div><strong><span><br></span></strong></div><div><strong><span>1.</span></strong><span>略 </span></div><div><strong><span><br></span></strong></div><div><strong><span>2.</span></strong><span>图略(答案不唯一) </span></div><div><strong><span><br></span></strong></div><div><strong><span>3.</span></strong><span>2 3 4 </span></div><div><strong><span><br></span></strong></div><div><strong><span>4.</span></strong><span>图略 答案不唯一 </span></div><div><strong><span><br></span></strong></div><div><strong><span>5.</span></strong><span>图略 答案不唯一 </span></div><div><strong><span><br></span></strong></div><div><strong><span>6.</span></strong><span>图略 答案不唯一 </span></div><div><strong><span><br></span></strong></div><div><strong><span>7.</span></strong><span>三角 四边 四边 四边 三角 五边 三角</span><br><br><span>四边 四边 五边 四边 六边 </span></div><div><strong><span><br></span></strong></div><div><strong><span>8.</span></strong><span>图略 答案不唯一 </span></div><div><strong><span><br></span></strong></div><div><strong><span>9.</span></strong><span>3 5 3 9</span><br><br><span><strong>智力冲浪</strong></span></div><div><span><br></span></div><div><span>(答案不唯一)</span><br><br><span> </span><br></div>
二年级上