2012-2013学年教科版小学四年级科学上册第一单元练习题

<div style="layout-grid:; "><div style="text-align: center;"><span class="Apple-style-span" style="font-weight: bold; "><font class="Apple-style-span" color="#FF0000">四年级第一单元练习</font></span></div><br><span>姓名</span><span style=" text-decoration:underline ; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span>&nbsp;班级</span><span style=" text-decoration:underline ; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span>&nbsp;学号</span><span style=" text-decoration:underline ; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><br><br><span><strong>一、填空题</strong></span><br><br><span>1、测量气温应该选择</span><span style=" text-decoration:underline ; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span>、</span><span style=" text-decoration:underline ; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span>的地方,每天应选择同一时间来测量气温。</span><br><br><span>2、风可以通过自然界中事物的变化来感知,可以用</span><span style=" text-decoration:underline ; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span>和</span><span style=" text-decoration:underline ; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span>来描述,风向标和风速仪这两种装置在生活中给我们带来风的消息。</span><br><br><span>3、降雨量的多少可以用</span><span style=" text-decoration:underline ; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span>来测量。&nbsp;</span><br><br><span>4、</span><span style=" text-decoration:underline ; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span>是记录每天各种天气现象的表格。有了</span><span style=" text-decoration:underline ; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span>&nbsp;,我们在做长时间的天气观察时,就可以用一些简单的方法进行记录,并利用这些记录,分析一段时间内的天气变化,找到天气变化的简单规律。</span><br><br><span>5、</span><span style=" text-decoration:underline ; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span>是气象学家测量风速的仪器。它有3~4个风杯,连接在一个类似于自行车轮子的辐条上,辐条在风吹的时候带动中间的轮轴转动,安装在轮轴上的示速器就显示出风的速度。</span><br><br><span>6、</span><span style=" letter-spacing:; ">看上去像棉花堆一样的云叫做</span><span style=" letter-spacing:; text-decoration:underline ; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style=" letter-spacing:; ">。</span><span style=" letter-spacing:; "></span><br><br><strong>二、判断题</strong><br><br><span>1、通常情况下,午后的气温最高。(&nbsp;&nbsp;&nbsp;)</span><br><br><span>2、从东南方吹向西北方的是东南风。(&nbsp;&nbsp;&nbsp;)</span><br><br><span>3、降水是天气的一个基本特征,它指的只是下雨 (&nbsp;&nbsp;&nbsp;)</span><br><br><span>4、靠近地球表面形成的扁平层状云就是积云。(&nbsp;&nbsp;&nbsp;)</span><br><br><span>5、天气是在不断变化的,它影响着地球上的一切生物。(&nbsp;&nbsp;&nbsp;)</span><br><br><span>6、同一时间,任何地方的温度是一样的。(&nbsp;&nbsp;&nbsp;)</span><br><br><span>7、利用对天气日历的分析,我们可以发现天气变化的一些规律。(&nbsp;&nbsp;&nbsp;)</span><br><br><span>8、天气带来的变化,我们并不能每天都感觉到。(&nbsp;&nbsp;&nbsp;)</span><br><br><span>9、某小组测得的温度与其他组不一样,肯定是温度计坏了。(&nbsp;&nbsp;&nbsp;)</span><br><br><span>10、降水量的单位是毫升。(&nbsp;&nbsp;&nbsp;)</span><br><br><span>11云层布满整个天空,但没有下雨。这种天气是阴天。(&nbsp;&nbsp;&nbsp;)</span><br><br><span>12我们只有通过电视才能了解到明天的天气情况。(&nbsp;&nbsp;&nbsp;)&nbsp;&nbsp;</span><br><br><span>13雨的强度一般划分为:小雨、中雨、大雨。(&nbsp;&nbsp;&nbsp;)</span><br><br><span>14风向通常采用8个方向来记录 (&nbsp;&nbsp;&nbsp;)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><br><br><span>15风车是专门用来测量风向的仪器。(&nbsp;&nbsp;&nbsp;)&nbsp;</span><br><br><span><strong>三、选择题</strong></span><br><br><span>1、小明在他的天气日历中画有</span><span>这个天气符号,我们可以知道(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><span></span><img src="//www.szxuexiao.com/uploadimages/2012/1025/2012102513343.jpg?m=0.7827322180382907"><br><br><span>A、用雨量器测到的24小时降水量可能是9毫米。</span><br><br><span>B、用雨量器测到的24小时降水量可能是19毫米。</span><br><br><span>C、用雨量器测到的24小时降水量可能是29毫米。</span><br><br><span>2、在记录风速的时候,数字“1”表示(&nbsp;)。</span><br><br><span>A、无风&nbsp;&nbsp;B、微风&nbsp;&nbsp;&nbsp;&nbsp;C、大风</span><br><br><span>3、当风向标的箭头指向北时,风向是(&nbsp;)。</span><br><br><span>A、东风&nbsp;&nbsp;&nbsp;B、北风&nbsp;&nbsp;&nbsp;C、南风</span><br><br><span>4、风每秒行进的距离称为(&nbsp;&nbsp;)。</span><br><br><span>A、风速&nbsp;&nbsp;&nbsp;&nbsp;B、风向&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、风量</span><br><br><span>5、把天空当作一个圆,下列哪幅图不属于阴天天气?(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><br><br><span></span><img src="//www.szxuexiao.com/uploadimages/2012/1025/20121025133511.jpg?m=0.20329936733469367"><br><br><span>6、在观察记录一个月的气温时,下列做法错误的是(&nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><span>A、尽量在每天的同一时间进行观察记录</span><br><br><span>B、遇到周末和假期,应该停止观察记录</span><br><br><span>C、尽量在同一个地点进行观察记录</span><br><br><span><strong>四、连线题</strong></span><br><br><strong><img src="//www.szxuexiao.com/uploadimages/2012/1025/20121025133555.jpg?m=0.9748043741565198"></strong><br><br><span><strong>五、问答题</strong></span><br><br><span style=" letter-spacing:; ">1、根据小明提供的一天的天气信息,认真分析,在下面表格中相应的栏目打上“√&nbsp;”</span><span style=" letter-spacing:; "></span><br><br><span style=" letter-spacing:; ">早上上学时---汽车亮着灯,缓慢的行驶;人们都穿着棉衣;许多人带着雨伞。</span><span style=" letter-spacing:; "></span><br><br><span style=" letter-spacing:; ">中午时----大树直摇晃;打开窗户,雨水打了进来。</span><span style=" letter-spacing:; "></span><br><br><span style=" letter-spacing:; ">傍晚放学时---天空布满了灰色的云层;炊烟向西南飘去。</span><span style=" letter-spacing:; "></span><br><table><tbody><tr style="height:; "><td style=" border-left: solid ; mso-border-left-alt: solid ; border-right: solid ; mso-border-right-alt: solid ; border-top: solid ; mso-border-top-alt: solid ; border-bottom: solid ; mso-border-bottom-alt: solid ; background:; "><br><span>天气情况</span><br></td><td style=" border-left: none ; mso-border-left-alt: none ; border-right: solid ; mso-border-right-alt: solid ; border-top: solid ; mso-border-top-alt: solid ; border-bottom: solid ; mso-border-bottom-alt: solid ; background:; "><br><span>(&nbsp;)晴天&nbsp;(&nbsp;)多云&nbsp;(&nbsp;)阴天转雨</span><br></td></tr><tr style="height:; "><td style=" border-left: solid ; mso-border-left-alt: solid ; border-right: solid ; mso-border-right-alt: solid ; border-top:none; ; mso-border-top-alt: solid ; border-bottom: solid ; mso-border-bottom-alt: solid ; background:; "><br><span>早上天气特点</span><br></td><td style=" border-left: none ; mso-border-left-alt: none ; border-right: solid ; mso-border-right-alt: solid ; border-top:none; ; mso-border-top-alt: solid ; border-bottom: solid ; mso-border-bottom-alt: solid ; background:; "><br><span>(&nbsp;)有雾&nbsp;()有霜冻&nbsp;(&nbsp;)有露</span><br></td></tr><tr style="height:; "><td style=" border-left: solid ; mso-border-left-alt: solid ; border-right: solid ; mso-border-right-alt: solid ; border-top:none; ; mso-border-top-alt: solid ; border-bottom: solid ; mso-border-bottom-alt: solid ; background:; "><br><span>气温特点</span><br></td><td style=" border-left: none ; mso-border-left-alt: none ; border-right: solid ; mso-border-right-alt: solid ; border-top:none; ; mso-border-top-alt: solid ; border-bottom: solid ; mso-border-bottom-alt: solid ; background:; "><br><span>(&nbsp;)温暖&nbsp;(&nbsp;&nbsp;)凉爽&nbsp;&nbsp;(&nbsp;)寒冷</span><br></td></tr><tr style="height:; "><td style=" border-left: solid ; mso-border-left-alt: solid ; border-right: solid ; mso-border-right-alt: solid ; border-top:none; ; mso-border-top-alt: solid ; border-bottom: solid ; mso-border-bottom-alt: solid ; background:; "><br><span>云的类型</span><br></td><td style=" border-left: none ; mso-border-left-alt: none ; border-right: solid ; mso-border-right-alt: solid ; border-top:none; ; mso-border-top-alt: solid ; border-bottom: solid ; mso-border-bottom-alt: solid ; background:; "><br><span>(&nbsp;&nbsp;)积云&nbsp;(&nbsp;)层云&nbsp;&nbsp;(&nbsp;&nbsp;)卷云</span><br></td></tr><tr style="height:; "><td style=" border-left: solid ; mso-border-left-alt: solid ; border-right: solid ; mso-border-right-alt: solid ; border-top:none; ; mso-border-top-alt: solid ; border-bottom: solid ; mso-border-bottom-alt: solid ; background:; "><br><span>风&nbsp;&nbsp;向</span><br></td><td style=" border-left: none ; mso-border-left-alt: none ; border-right: solid ; mso-border-right-alt: solid ; border-top:none; ; mso-border-top-alt: solid ; border-bottom: solid ; mso-border-bottom-alt: solid ; background:; "><br><span>(</span><span>&nbsp;)东南风(&nbsp;)西北风(&nbsp;)东北风</span><br></td></tr><tr style="height:; "><td style=" border-left: solid ; mso-border-left-alt: solid ; border-right: solid ; mso-border-right-alt: solid ; border-top:none; ; mso-border-top-alt: solid ; border-bottom: solid ; mso-border-bottom-alt: solid ; background:; "><br><span>风&nbsp;&nbsp;速</span><br></td><td style=" border-left: none ; mso-border-left-alt: none ; border-right: solid ; mso-border-right-alt: solid ; border-top:none; ; mso-border-top-alt: solid ; border-bottom: solid ; mso-border-bottom-alt: solid ; background:; "><br><span>(&nbsp;&nbsp;)无风&nbsp;&nbsp;(&nbsp;&nbsp;)微风&nbsp;(&nbsp;)大风</span><br></td></tr></tbody></table><br><span>2、小红明天一大早要去秋游,晚上听到的天气预报是:明天晴转多云,最低气温</span><span>18</span><span>摄氏度,最高气温</span><span>28</span><span>摄氏度。</span><br><br><span>请问:(</span><span>1</span><span>)小红明天需要带雨具吗?\</span><br><br><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(</span><span>2</span><span>)小红明天最适合穿的衣服是(&nbsp;&nbsp;)</span><br><br><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A、棉衣&nbsp;&nbsp;&nbsp;&nbsp;</span><span>B</span><span>、衬衫加外套&nbsp;&nbsp;&nbsp;&nbsp;</span><span>C</span><span>、衬衫</span><br><br><br></div>