<div><div style="text-align: center;"><strong><font color="#ff0000">2012-2013第二学期三年级科学供题考试答案及评分标准</font></strong></div><br><span style="font-weight: bold; font-family: 宋体;">一、选择题（每题2分，共30分）</span></div><div><font face="宋体"><strong><br></strong></font> <table width="100%" border="1"><tbody><tr><td><br>题系<br></td><td><br>1<br></td><td><br>2<br></td><td><br>3<br></td><td><br>4<br></td><td><br>5<br></td><td><br>6<br></td><td><br>7<br></td><td><br>8<br></td><td><br>9<br></td><td><br>10<br></td><td><br>11<br></td><td><br>12<br></td><td><br>13<br></td><td><br>14<br></td><td><br>15<br></td></tr><tr><td><br>答案<br></td><td><br>C<br></td><td><br>C<br></td><td><br>B<br></td><td><br>C<br></td><td><br>A<br></td><td><br>A<br></td><td><br>B<br></td><td><br>A<br></td><td><br>B<br></td><td><br>A<br></td><td><br>B<br></td><td><br>C<br></td><td><br>B<br></td><td><br>C<br></td><td><br>B<br></td></tr></tbody></table> <br><span style="font-weight: bold; font-family: 宋体;">二、判断题（每题2分，共24分）</span></div><div><font face="宋体"><strong><br></strong></font> <table width="100%" border="1"><tbody><tr><td><br>题系<br></td><td><br>1<br></td><td><br>2<br></td><td><br>3<br></td><td><br>4<br></td><td><br>5<br></td><td><br>6<br></td><td><br>7<br></td><td><br>8<br></td><td><br>9<br></td><td><br>10<br></td><td><br>11<br></td><td><br>12<br></td></tr><tr><td><br>答案<br></td><td><br>√<br></td><td><br>√<br></td><td><br>×<br></td><td><br>√<br></td><td><br>√<br></td><td><br>√<br></td><td><br>√<br></td><td><br>×<br></td><td><br>√<br></td><td><br>×<br></td><td><br>√<br></td><td><br>×<br></td></tr></tbody></table> <br><span style=" font-weight:bold; ">三、连线题(每划对一条线得2分，共16分)</span><span style=" font-weight:bold; "></span><br><br><span style=" font-weight:bold; ">1、（8分）</span><span style=" font-weight:bold; "></span><br><br><img src="//www.szxuexiao.com/uploadimages/2013/0704/20137417856.jpg?m=0.09116613771766424"><br><br><span><strong>2、（8分）</strong></span><br><br><img src="//www.szxuexiao.com/uploadimages/2013/0704/201374171056.jpg?m=0.19063144479878247"><br><br><span style=" font-weight:bold; ">四、填图题（共16分）</span><span style=" font-weight:bold; "></span><br><br><span>1、蚕的一生（每空2分，共8分）&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><br><br><img src="//www.szxuexiao.com/uploadimages/2013/0704/201374171128.jpg?m=0.5441673616878688"><br><br><span>2、写出温度计的读数（每空2分，共8分）</span><br><br><span>(&nbsp;&nbsp;-8或零下8&nbsp;)℃　&nbsp;&nbsp;(&nbsp;&nbsp;12&nbsp;&nbsp;)℃&nbsp;&nbsp;&nbsp;&nbsp;(&nbsp;&nbsp;35&nbsp;&nbsp;)℃&nbsp;&nbsp;&nbsp;(&nbsp;&nbsp;-6或零下6&nbsp;)℃　</span><br><br><span style=" font-weight:bold; ">五、实验探究题（共14分）</span><span style=" font-weight:bold; "></span><br><br><span>1、写出下面各图中使用温度计测水温实验的错误及改正方法。（指出错误得1分，改正得1分，共6分）</span><br><br><span>图1：错在手拿温度计中部了，应拿在温度计上端。</span><br><br><span>图2：错在温度计碰到容器壁了，应把温度计下端浸入水中，不碰底和壁。</span><br><br><span>图3：错在从下往上看温度了，应做到</span><span style=" font-weight:bold; ">视线与温度计的液面持平</span><br><br><span>2</span><span>、下列磁铁靠近时相互吸引还是相互排斥，填在括号里</span><span>（每空2分，共8分）</span><br><br><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;N&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;N&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;S&nbsp;&nbsp;&nbsp;&nbsp;</span><span>&nbsp;&nbsp;S</span><span>&nbsp;</span><br><br><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;（</span><span>相互排斥</span><span>或排斥&nbsp;）&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;（&nbsp;&nbsp;</span><span>相互排斥</span><span>或排斥&nbsp;&nbsp;）</span><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><br><br><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;N&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;S&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;S&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;N</span><br><br><span>&nbsp; &nbsp; &nbsp; &nbsp; （</span><span>相互吸引</span><span>或吸引&nbsp;）&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;（</span><span>相互吸引</span><span>或吸引&nbsp;&nbsp;）</span><br><br><br></div>