学校 姓名 班级___________ 座位号 ……装…………订…………线…………内…………不…………要…………答…………题……
一、我会填空：（共20分）
is article includes some pa ts, including text, pictures, and design. Copyright is person
is article includes some parts, including text, pictures, and design. Copyright is perso1、地球内部运动引起（ ）和火山喷发。 2、科学技术上统一规定，（ ）的单位是牛顿 ，用字母（ ）表示。 3、（ ）的大小、有无植物覆盖和降雨量的大小都会影响土壤被侵蚀的程度。
4、土壤中，最小的微粒是（ ），最大的微粒是沙砾。 5、弹簧测力计是利用（ ）“受力大，伸长长”的特征制成的。 6、（ ）通常从绿色植物开始，到凶猛的肉食动物终止。 7、因为光是以（ ）的形式传播的，所以影子总是在（ ）光的一面。
8、滚珠轴承是一种将滑动转变为（ 滚动 ）的装置。
is article includes some parts, including text, pictures, and design. Copyright is persois article includes some parts, including text, pictures, and design. Copyright is persois article includes some parts, including text, pictures, and design. Copyright is persois article includes some parts, including text, pictures, and design. Copyright is perso二、我会判断：（对的打“√”，错的打“×”，共20分）
（ × ）1、保护森林、退耕还林可以绿化环境不可以减少土地的侵蚀。
（ × ）2、绝大部分地震都发生在地幔和地核内。
（ √ ）3、由于流水对土地的侵蚀作用，大江大河的下游和入海口往往形成平原。
（ √ ）4、橡皮筋驱动的小车，车轴上橡皮筋缠绕的圈数与小车
行驶的距离有很大关系。
（ × ）5、夏天，人们都爱穿浅色的衣服，是因为浅色的衣服比深色的衣服漂亮
（ × ）6、从地形图上看，我国西部多平原，东部多高山。 （ √ ）7、有弹力的物体恢复原状后弹力就消失了。 （ × ）8、利用光的直射，医生带上额镜就可以为病人检查耳朵了。
is article includes some parts, including text, pictures, and design. Copyright is personis article includes some parts, including text, pictures, and design. Copyright is personis article includes some parts, including text, pictures, and design. Copyright is personis article includes some parts, including text, pictures, and design. Copyright is personis article includes some parts, including text, pictures, and design. Copyright is personis article includes some parts, including text, pictures, and design. Copyright is personis article includes some parts, including text, pictures, and design. Copyright is person（ √ ）9、冰川移动虽然缓慢，但也能改变地形地貌。
（ √ ）10、摩擦力是可以感觉到的，也可以用测力计测量。 三、我会选择：（将正确答案的序号填在括号里，共20分）
1、河水从崎岖不平的山地流到地势平缓的地方，可看到两岸不同的沉积物，上游两岸是（ ），中游是（ ），下游是（ ）。
A、沙子 B、石头 C、鹅卵石 2、使用弹簧测力计测量力的大小，读数时，视线应（ ） A、低于指针 B、高于指针 C、与指针相平 D、无所谓
3、实际生活中，根据需要有时候要增大摩擦，有时候要减小摩擦。下列需要减小摩擦的是（ ）。
A、刹车 B、自行车手把 C、汽车轮胎 D、车轴
4、由于受水、大气、气温或动植物的作用，岩石破碎，这种现象叫（ ）
A、侵蚀 B、沉积 C、破坏 D、风化
5、下列对于土壤的描述错误的是（ ）。 A、土壤是地球上最有价值的资源。
B、土壤中有腐殖质和盐分，它们是植物生长必需的营养元素。 C、土壤中没有空气。
D、土壤与人类的生产生活有密切的联系。 6、在地形图上，深浅不同的蓝色表示 ( )。
A、各种深度的海洋 B、高低不平的山地 C、起伏的丘陵 D、积雪的山峰
7、下列不是光源的是（ ）。
A、太阳 B、打开的手电筒 C、月亮 D、萤火虫
8、一粒饱满的绿豆种子发芽必须的基本条件不包含（ ） A、温度 B、水分 C、土壤 D、空气
is article includes some parts, including text, pictures, and design. Copyright is personis article includes some parts, including text, pictures, and design. Copyright is personis article includes some parts, including text, pictures, and design. Copyright is personis article includes some parts, including text, pictures, and design. Copyright is personis article includes some parts, including text, pictures, and design. Copyright is persois article includes some parts, including text, pictures, and design. Copyright is personis article includes some parts, including text, pictures, and design. Copyright is peris article includes some parts, including text, pictures, and design. Copyright is peris article includes some parts, including text, pictures, and design. Copyright is peris article includes some parts, including text, pictures, and design. Copyright is per
四、我会填表：（共10分）
根据地形特点，将以下地形，有选择地填进表内。
高原 丘陵 山地 平原 盆地
地 形 特 点 宽广平坦，起伏很小。 峰峦高耸，地势崎岖。 海拔不高，山顶浑圆。 海拔较高，地面开阔。 四周地势较高，中间低平。 五、我会连线：（共12分）
重 力 弹簧被压扁后产生的力
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弹 力 儿童从滑梯上往下滑时与滑梯接触产生的力 摩擦力 使火箭升上天空的力
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is article includes some parts, including text, pictures, and design. Copyright is per反冲力 使物体从滑梯上自然往下滑的力
六、我会实验：（共18分）
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通过学习，我们知道摩擦力的大小与①接触面状况、②物体重量、③物体的运动方式（滑动或滚动）都有关系。
请选择②，设计实验研究计划。
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我们的研究计划
要研究的问题： 研究的方法：对比实验
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相同的条件： 不同的条件： 实验结论：
参考答案
一、我会填空：（每空2分，共20分）
1、地震 2、力 N 3、土地坡度 4、黏土 5、弹簧 6、食物链 7、直线 背 8、 滚动 二、我会判断：（每空2分，共20分） 1、（×）2、（×）3、（√）4、（√）5、（×）6、（×）7、（√）8、（×）9、（√）10、（√） 三、我会选择：（共20分） 1、B C A 2、C 3、D 4、D 5、C 6、A 7、C 8、C
四、我会填表：（每空2分，共10分）
is article includes some parts, including text, pictures, and design. Copyright is peris article includes some parts, including text, pictures, and design. Copyright is peis article includes some parts, including text, pictures, and design. Copyright is peris article includes some parts, including text, pictures, and design. Copyright is peris article includes some parts, including text, pictures, and design. Copyright is peis article includes some parts, including text, pictures, and design. Copyright is peris article includes some parts, including text, pictures, and design. Copyright is per地 形 平原 山地 丘陵 高原 盆地 五、略
is article includes some parts, including text, pictures, and design. Copyright is pe特点 宽广平坦，起伏很小。 峰峦高耸，地势崎岖。 海拔不高，山顶浑圆。 海拔较高，地面开阔。 四周地势较高，中间低平。
is article includes some parts, including text, pictures, and design. Copyright is per六、我会实验：
is article includes some parts, including text, pictures, and design. Copyright is peis article includes some parts, including text, pictures, and design. Copyright is per②要研究的问题：摩擦力与物体重量的关系 研究的方法：对比实验
相同的条件：物体接触面相同、都匀速移动 不同的条件：改变物体本身的重量。 实验结论：物体重量小，摩擦力就小；物体重量大，摩擦力就大。
is article includes some parts, including text, pictures, and design. Copyright is peris article includes some parts, including text, pictures, and design. Copyright is per版权申明 本文部分内容，包括文字、图片、以及设计等在网上搜集整理.版权为个人所有 This article includes some parts, including text, pictures, and design. Copyright is personal ownership. 用户可将本文地内容或服务用于个人学习、研究或欣赏，以及其他非商业性或非盈利性用途，但同时应遵守著作权法及其他相关法律地规定，不得侵犯本网站及相关权利人地合法权利.除此以外，将本文任何内容或服务用于其他用途时，须征得本人及相关权利人地书面许可，并支付报酬. Users may use the contents or services of this article for personal study, research or appreciation, and other non-commercial or non-profit purposes, but at the same time, they shall abide by the provisions of copyright law and other relevant laws, and shall not infringe upon the legitimate rights of this website and its relevant obligees. In addition, when any content or service of this article is used for other purposes, written permission and remuneration shall be obtained from the person concerned and the relevant obligee. 转载或引用本文内容必须是以新闻性或资料性公共免费信息为使用目地地合理、善意引用，不得对本文内容原意进行曲解、修改，并自负版权等法律责任.Reproduction or quotation of the content of this article must be reasonable and good-faith citation for the use of news or informative public free information. It shall not misinterpret or modify the original intention of the content of this article, and shall bear legal liability such as copyright.
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