2014-2015学年小学四年级科学上册期末试题及答案

<div style="text-align: center;"><font color="#ff0000"><span style="font-family: 黑体;">2014-2015学年</span><span style="font-family: 黑体;">青岛版四年级科学上册期末试题及答案</span></font></div><div><font face="黑体"><br></font> <table width="100%" border="1"><tbody><tr><td><br>题号<br></td><td><br>一<br></td><td><br> 二<br></td><td><br>三<br></td><td><br>四<br></td><td><br>五<br></td><td><br>合计<br></td></tr><tr><td><br>分数<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td></tr></tbody></table> <br><span style="font-family: 宋体; "><strong>一、画龙点睛</strong></span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">1.水流的力量与水的</span><span style="font-family: 宋体; text-decoration: underline; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="font-family: 宋体; ">和流量有关。</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">2.植物的茎具有运输</span><span style="font-family: 宋体; text-decoration: underline; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="font-family: 宋体; ">和</span><span style="font-family: 宋体; text-decoration: underline; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="font-family: 宋体; ">的作用。</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">3.</span><span style="font-family: 宋体; text-decoration: underline; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="font-family: 宋体; ">&nbsp;、过滤、</span><span style="font-family: 宋体; text-decoration: underline; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="font-family: 宋体; ">&nbsp;是三种常用的净化水的方法。</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">4.</span><span style="font-family: 宋体; text-decoration: underline; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="font-family: 宋体; ">色物体比</span><span style="font-family: 宋体; text-decoration: underline; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="font-family: 宋体; ">色物体吸收的辐射热多。</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">5.我国的“神舟飞船”是利用</span><span style="font-family: 宋体; text-decoration: underline; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="font-family: 宋体; ">的原理升空的。</span><br><br><span style="font-family: 宋体; ">6.热在水中或空气中主要是靠</span><span style="font-family: 宋体; text-decoration: underline; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="font-family: 宋体; ">的方式传递的,太阳供给大地的热是</span><span style="font-family: 宋体; ">靠</span><span style="font-family: 宋体; text-decoration: underline; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="font-family: 宋体; ">方式传递的。</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">7.瓶子“吞”鸡蛋是利用了</span><span style="font-family: 宋体; text-decoration: underline; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="font-family: 宋体; ">&nbsp;。</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; "><strong>二、明辨是非&nbsp;</strong></span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">1、水和空气都是热的良导体。 (&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">2、乘坐充气橡皮艇舒适,减缓撞击,是利用了压缩空气的弹性。</span><span style="font-family: ‘‘; "> </span><span style="font-family: 宋体; ">(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">3、我们在利用酒精灯给物体加热时,应把受热物体放在焰心部分。</span><span style="font-family: 宋体; ">(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">4、热稀饭时,用勺子不断的搅动,是为了加快粥内的热对流。</span><span style="font-family: ‘‘; "> </span><span style="font-family: 宋体; ">(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">5、叶绿体可以产生叶绿素,所以叶子一般都是绿色的。</span><span style="font-family: ‘‘; "> </span><span style="font-family: 宋体; ">(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">6、在制作饮料时,为了颜色漂亮,可以多加色素。</span><span style="font-family: ‘‘; "> </span><span style="font-family: 宋体; ">(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">7、植物的光合作用是吸收氧气,放出二氧化碳。</span><span style="font-family: ‘‘; "> </span><span style="font-family: 宋体; ">(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">8、植物所需要的养料是全部从土壤中来的。</span><span style="font-family: ‘‘; "> </span><span style="font-family: 宋体; ">(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; "><strong>三、取出珍宝。</strong></span><br><br><span style="font-family: 宋体; ">1、(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)的太阳能热水器吸收的太阳能量多。</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">A</span><span style="font-family: 宋体;">、</span><span style="font-family: 宋体; ">直立&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B</span><span style="font-family: 宋体;">、</span><span style="font-family: 宋体; ">斜立&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C</span><span style="font-family: 宋体;">、</span><span style="font-family: 宋体; ">平放</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">2、(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)不是植物的根。</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">A</span><span style="font-family: 宋体;">、</span><span style="font-family: 宋体; ">红薯&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B</span><span style="font-family: 宋体;">、</span><span style="font-family: 宋体; ">萝卜&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C</span><span style="font-family: 宋体;">、</span><span style="font-family: 宋体; ">马铃薯</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">3、根吸收的水分,大部分用于(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">A</span><span style="font-family: 宋体;">、</span><span style="font-family: 宋体; ">蒸腾作用&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B</span><span style="font-family: 宋体;">、</span><span style="font-family: 宋体; ">光合作用&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C</span><span style="font-family: 宋体;">、</span><span style="font-family: 宋体; ">储存&nbsp;</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">4、树皮中运输养料的细管,叫(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">A</span><span style="font-family: 宋体;">、</span><span style="font-family: 宋体; ">导管&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B</span><span style="font-family: 宋体;">、</span><span style="font-family: 宋体; ">筛管&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C</span><span style="font-family: 宋体;">、</span><span style="font-family: 宋体; ">传输管</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">5、根据对流原理,厨房里排热空气和油烟风扇,安装在炉灶的(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">A</span><span style="font-family: 宋体;">、</span><span style="font-family: 宋体; ">上方&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B</span><span style="font-family: 宋体;">、</span><span style="font-family: 宋体;">下方&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C</span><span style="font-family: 宋体;">、</span><span style="font-family: 宋体;">相同高度</span></div><div><br><span style="font-family: 宋体; ">6、冬季穿棉衣比较暖和,是因为(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">A</span><span style="font-family: 宋体;">、</span><span style="font-family: 宋体;">棉衣挡风&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B</span><span style="font-family: 宋体;">、</span><span style="font-family: 宋体;">棉衣能保温&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C</span><span style="font-family: 宋体;">、</span><span style="font-family: 宋体;">棉衣能生热</span></div><div><br><span style="font-family: 宋体; "><strong>四、科学探究</strong></span><br><br><span style="font-family: 宋体; font-weight: bold; ">探究:</span><span style="font-family: 宋体; ">热气球上升的秘密</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; font-weight: bold; ">1.我的猜想</span><span style="font-family: 宋体; ">:在日常生活中有好多物体能上升,如</span><span style="font-family: 宋体; text-decoration: underline; ">&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><span style="font-family: 宋体; ">等,这些物体为什么会上升,我的猜想可能是因为</span><span style="font-family: 宋体; text-decoration: underline; ">&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;&nbsp;</span><span style="font-family: 宋体; ">。</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">2.</span><span style="font-family: 宋体; font-weight: bold; ">设计实验,验证猜想。</span><span style="font-family: 宋体; "></span><br><br><span style=" mso-font-kerning:; ">(1)</span><span style=" mso-font-kerning:; ">我需要的实验材料:火柴、蜡烛、酒精、酒精棉球、塑料袋、纸屑、纸蛇、线、筷子等。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">(2)我的实验记录</span><span style=" mso-font-kerning:; "></span><br><br><span style=" font-weight:bold; mso-font-kerning:; ">实验方案探究表</span></div><div><strong><br></strong> <table width="100%" border="1"><tbody><tr><td><br>实验方法<br></td><td><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;实验现象<br></td></tr><tr><td><br>&nbsp;用塑料袋做实验<br></td><td><br>&nbsp;<br></td></tr><tr><td><br>做旋转的纸蛇实验<br></td><td><br><br></td></tr><tr><td><br>做纸屑飞舞实验<br></td><td><br>&nbsp;<br></td></tr><tr><td><br>实验结论<br></td><td><br>空气受热后,体积会_______,与同体积的空气相比,重量会_______,热空气会_&nbsp;&nbsp;_____。<br></td></tr></tbody></table> <br><span style=" mso-font-kerning:; "><strong>五、科学与生活</strong></span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">搅拌能加快溶解吗,写出你的猜想和研究方案。</span><span style=" mso-font-kerning:; "></span><br><br><br><div style="text-align: center;"><strong><font color="#38761d">2014-2015学年小学四年级科学上册期末试题答案</font></strong></div><br><span style=" mso-font-kerning:; "><strong>一、画龙点睛(每空1分,共11分)</strong></span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">1、流速&nbsp;&nbsp;&nbsp;2、水分&nbsp;&nbsp;&nbsp;养分&nbsp;&nbsp;&nbsp;3、沉淀&nbsp;&nbsp;&nbsp;消毒&nbsp;&nbsp;4、黑(深)&nbsp;&nbsp;&nbsp;白(浅)&nbsp;</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">5、反冲&nbsp;&nbsp;&nbsp;6、对流&nbsp;&nbsp;&nbsp;辐射&nbsp;&nbsp;&nbsp;7、大气压力&nbsp;&nbsp;&nbsp;&nbsp;</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; "><strong>二、明辨是非&nbsp;(每题1分,共8分)</strong></span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">1、×&nbsp;2、√&nbsp;3、×&nbsp;&nbsp;4、√&nbsp;&nbsp;5、√&nbsp;&nbsp;6、×&nbsp;&nbsp;7、×&nbsp;&nbsp;8、×&nbsp;&nbsp;</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; "><strong>三、取出珍宝。(每题2分,共12分)</strong></span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">1、B&nbsp;&nbsp;2、C&nbsp;&nbsp;3、A&nbsp;&nbsp;&nbsp;4、B&nbsp;&nbsp;5、A&nbsp;&nbsp;&nbsp;6、B&nbsp;&nbsp;</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; "><strong>四、科学探究(每空1分,共8分)</strong></span><span style=" mso-font-kerning:; "></span><br><br><span style="font-family: 宋体; font-weight: bold; ">探究:</span><span style="font-family: 宋体; ">热气球上升的秘密</span><br><br><span style="font-family: 宋体; font-weight: bold; ">1.我的猜想</span><span style="font-family: 宋体; ">:在日常生活中有好多物体利用热空气上升,如</span><span style="font-family: 宋体; text-decoration: underline; ">&nbsp;&nbsp;孔明灯,热气球&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="font-family: 宋体; ">等,这些物体为什么会上升,我的猜想可能是因为</span><span style="font-family: 宋体; text-decoration: underline; ">&nbsp;&nbsp;&nbsp;&nbsp;热空气轻,会上升&nbsp;&nbsp;。</span><span style="font-family: 宋体; text-decoration: underline; "></span><br><br><span style="font-family: 宋体; ">2.</span><span style="font-family: 宋体; font-weight: bold; ">设计实验,验证猜想。</span><span style="font-family: 宋体; "></span><br><br><div style="text-align: center;"><span style="font-weight: bold;">实验方案探究表</span></div></div><div><strong><br></strong> <table width="100%" border="1"><tbody><tr><td><br><strong>实验方法<br></strong></td><td><strong><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;实验现象</strong><br></td></tr><tr><td><br>用塑料袋做实验<br></td><td><br>塑料袋在热空气的带动下,飞起来了<br></td></tr><tr><td><br>做旋转的纸蛇实验<br></td><td><br>纸蛇在火焰上旋转起来了<br></td></tr><tr><td><br>做纸屑飞舞实验<br></td><td><br>纸屑在热空气的上方飞舞起来了<br></td></tr><tr><td><br>实验结论<br></td><td><br>空气受热后,体积会__膨胀___,与同体积的空气相比,重量会____重__,热空气会_上升&nbsp;&nbsp;。<br></td></tr></tbody></table> <br><span style=" mso-font-kerning:; "><strong>五、科学与生活(11分)</strong></span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">搅拌能加快溶解吗,写出你的猜想和研究方案。</span><span style=" mso-font-kerning:; "></span><br><br><span style="font-family: 宋体; ">我的猜想</span><span style="font-family: 宋体; ">:</span><span style="font-family: 宋体; text-decoration: underline; ">&nbsp;搅拌&nbsp;&nbsp;</span><span style="font-family: 宋体; ">能加快溶解。</span><br><br><span style="font-family: 宋体; ">我需要的</span><span style="font-family: 宋体; ">实验</span><span style="font-family: 宋体; ">器材</span><span style="font-family: 宋体; ">:</span><span style="font-family: 宋体; ">两块大小一样的肥皂(糖块)、搅拌棒、两个杯子、水。(可不写实验器材)</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">实验方案:</span><span style=" mso-font-kerning:; ">①找两个相同的杯子倒同样多的水。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">②把两块同样大小的肥皂块(或者糖块)同时放入两个杯子中。&nbsp;&nbsp;</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">③&nbsp;用搅拌棒搅拌其中的一杯,另一杯不动,看看哪杯中的肥皂块溶解得快。&nbsp;</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">从实验中发现:搅拌的杯子里的肥皂块(糖块)溶解的要快,所以搅拌能加快物体的溶解。</span><span style=" mso-font-kerning:; "></span><br><br></div>