教科版三年级下册科学课堂作业本答案

教科版三年级 下册 数学七年级下册拔高题下载二年级下册除法运算下载七年级下册数学试卷免费下载二年级下册语文生字表部编三年级下册语文教材分析 科学课堂作业本答案 三年级下册科学《课堂作业本》答案 一、植物的生长变化 1、植物新生命的开始 活动记录 1(略 2( 种子名称 它的形状、大小、颜色等外形特点 凤仙花 圆形、很小、褐色还带有一点绿 绿豆 椭圆、较小、绿色 玉米 圆锥形、水滴状、中等大、黄色 花生 椭圆、较大、米黄色 红豆 椭圆、较小、暗红色 黄豆 圆形、中等大、黄色 课堂练习 判断题:(1)? (2)? (3)? 2、种植我们的植物 活动记录 1(凤仙花的生长发育记录表(表中日期仅供参考，根据您的实际情况而定) 果实和种生长发育 播种 发芽 长出花蕾 开花 结果 子成熟 日期 3月20日 3月27日 5月13日 5月22日 6月7日 7月11日 7天，47天，9天，15天，35天，110天( 2(略 课堂练习 判断题(1)? (2)× (3)× (4)? (5)? 资料阅读 选择题(1)A (2)B (3)B (4)C the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the personnel Department of the company. (3) personal injury accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false, to inform the administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel 3、我们先看到了根 活动记录 通过观察种下的种子，我们发现，种子萌发先(长根)，再(长茎和叶)。植物的根向(下)生长，根的生长速度(很快)。 我们还发现，根生长的方向与种子放置的方向(没有)关系。 课堂练习 判断题(1)× (2)? (3)× (4)? (5)? (6)? (7)? (8)× (9)? 4、种子变成了幼苗 活动记录 1(整理前三周里凤仙花苗的生长变化情况。 破土而出的时间 3月27日 刚出土时叶的样子 很小、低头、合拢 左右、前后对齐(对刚出土时茎的颜色 嫩绿色 叶在茎上怎样排列 生) 第一对叶子厚实，小，圆形，深绿色，光滑。 第一对叶子和以后长出的叶子有什 后面长出的叶子薄、大，长椭圆形，绿色，有点 么不同 粗糙，叶边缘有刺。 其他发现 发芽时间很慢，第一对真叶长出后长叶的速度加快。 课堂练习 1(填空题 (1)阳光、空气。(2)叶。(3)太阳。(4)水分，养料。 2(判断题(1)? (2)× (3)? (4)? (5)? 3(简答题 因为小老鼠吐出的二氧化碳和叶子从根部吸收的水分并依靠阳光提供的能量制造氧气和养料，这就是光合作用。其中氧气给小老鼠呼吸，所以，小老鼠不会被马上憋死。 5、茎越长越高 活动记录:(仅供参考) 观察时间 刚出土时 一周以后 两周以后 三周以后 四周以后 „„ the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the personnel Department of the company. (3) personal injury accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false, to inform the administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel 茎的颜色 嫩绿色 绿色加深 深绿 有点红 大部分红 红 茎的硬度 很脆、软 脆、软 有点硬 较硬 硬 硬 茎的高度 0.3厘米 2厘米 3厘米 6厘米 12厘米 18厘米 观察凤仙花茎的高度变化统计图，我们发现:凤仙花在前三周茎生长速度很慢，第四周至第七周茎的生长速度很快，第七周以后茎的生长速度逐渐开始减慢。 课堂练习 1(选择题(1)A (2)B 2(判断题(1)? (2)? (3)? (4)? (5)× 6、开花了，结果了 活动记录:略 课堂练习 判断题(1)? (2)? (3)? (4)× (5)? (6)? 7、我们的大丰收 活动记录 填图省略 (1) 一株凤仙花大约可以结出(20—30)个果实。一株凤仙花大约可以收获 (300—500)粒种子。 (2)300—500粒种子。 课堂练习 判断题(1)× (2)? (3)? (4)? (5)× 《植物的生长变化》 单元 初级会计实务单元训练题天津单元检测卷六年级下册数学单元教学设计框架单元教学设计的基本步骤主题单元教学设计 练习 1、填空题。 (1)种子(2)选种 2、判断题: (1)?(2)?(3)×(4)×(5)?(6)?(7)?(8)?(9)? 3、选择题。 the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the personnel Department of the company. (3) personal injury accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false, to inform the administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel (1)A (2)C (3)B (4)B (5)C 4、连线题。 (1)直立茎 红薯的茎 (2)根 支持、运输作用 缠绕茎 凤仙花的茎 茎 制造养料 攀缘茎 牵牛花的茎 叶 发育果实和种子 匍匐茎 葡萄的茎 花 吸收、固定作用 5、略。 《动物的生命周期》单元 1、蚕卵里孵出的新生命 活动记录 1(观察蚕卵。 颜色 淡黄色、绿色、黑色等 画一个卵 形状 扁圆形 大小 很小，跟芝麻差不多大 其他发现 颜色由浅变深 2(略 课堂练习 判断题(1)A (2)C (3)B (4)C (5)A (6)D 2、蚕的生长变化 活动记录 1(观察蚕的外形和行动，将观察到的特征在括号内打“?” 以下几小题为正确的描述:(1)(3)(4)(6)(8)(9)(11) 2(蚕吐丝的观察记录 不再吃桑叶了，躯体发黄、发亮、变透明 吐丝前的蚕 画一条蚕 吐丝后的蚕 身体变小，潜伏在内 蚕怎样吐丝 身体运动，头来回晃动 the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the personnel Department of the company. (3) personal injury accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false, to inform the administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel 其他发现 花费长时间寻找适合做茧的地方 3(略 4(略 课堂练习 排序:1 2 3 5 4 3、蚕变了新模样 活动记录 蛹的外形和蚕有什么不同 蛹呈纺锤形，蚕是长圆筒形 画一格蚕蛹 还能找到眼睛和足吗,身能找到眼睛和足，身上还有环上的环节还在吗, 节。 蛹会动吗,它的身上长出蛹会动，它背面有一盾片，从盾了什么东西 片生出2对翅 在剪开的茧里还发现了什还有一层皮，它是蚕第五次蜕的么,它可能是什么, 皮 其他发现 蛹的颜色变成了褐色。 推测:蛹还会变化吗,它会蛹还会变化，会变成蚕蛾 变成什么模样呢, 2(略 3(蚕丝的特点: (仅作参考) 4、蛹变成了什么 活动记录:蚕蛾观察记录 蚕蛾身体分为几个部分 各部分有哪些器官 the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the personnel Department of the company. (3) personal injury accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false, to inform the administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel 课堂练习 1( 略 2( (? ) (? ) ( ) ( ? ) (? ) ( ) (? ) 5、蚕的生命周期 活动记录 略(见教学参考书) 课堂练习 the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the personnel Department of the company. (3) personal injury accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false, to inform the administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel 1(选择题,1,C ,2,A ,3,B 2(略。 6、其他动物的生命周期 1(判断题。 ,1,? ,2,× ,3,? 2.填图。 变态:青蛙、蝗虫 不变态:鲫鱼、鸡、狗、猫、猪 从卵孵化而来:青蛙、蝗虫、鲫鱼、鸡 由母亲直接生下来:猫、狗、猪 7、我们的生命周期 1、在方框内打“?”。 “手指变多了、眼睛变小了”不选，其余都选。 2、小林从小到大身体长高了～体重也增加了。 3( 身体变化的主要特点 个子比较矮～皮肤比较嫩～体重、身高 自己 长得快等 爸爸、妈个子比较高～身体壮实～皮肤开始出现 妈皱纹～体重、身高比较稳定等 爷爷、奶身体有点驼～皮肤较老～皱纹比较多～ 奶 头发花白～腿脚不灵便～牙齿掉落等 单元练习 the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the personnel Department of the company. (3) personal injury accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false, to inform the administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel 1、判断题。 ,1,? ,2,×,3,?,4,?,5,?,6,? 2、选择题。 ,1,A ,2,C ,3,B ,4,A ,5,A ,6,B 3、列举。 请写出3种昆虫:蝴蝶、蝗虫、蚂蚁、蜻蜓等 4、略。 《温度与水的变化》单元 1、温度与温度计 活动记录 课堂练习 1.填空题。 ,1,冷热程度～摄氏度,?, ,2,温度计。 2.读温度计表示的温度。 0? 37? 100? -5? 13? -7? 3.观察图形温度计回答问题。 ,1,这是一支摄氏温度计吗, 是 ,2,它能测量的最高温度是 42? 。 ,3,小明现在的体温是 39? 。 ,4,他发烧了吗, 是,发烧了, 2、测量水的温度 the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the personnel Department of the company. (3) personal injury accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false, to inform the administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel 活动记录:略 课堂练习 判断题。 (1)? (2)? (3) × (4)× (5)? (6)×(7)× 3、水结冰了 活动记录 1.比较冰和水～它们有哪些相同的特征和不同的特征 冰和水的相同特征:无色、无味、透明。 冰和水的不同特征:冰:有固定形状、不会流动、是固体 水:没有固定形状、会流动、是液体 2.略 课堂练习 填空,1,0? ,2,温度下降到0?以下了 ,3,降低温度 4、冰融化了 活动记录:略。 课堂练习 the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the personnel Department of the company. (3) personal injury accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false, to inform the administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel 选择题,1,C ,2,C ,3,B ,4,B ,5,A ,6,A 5、水珠从哪里来 活动记录 ,1,可能是:空气中的水蒸气遇到了冰冷的玻璃而凝结成的小水珠。 ,2,有小水珠～无小水珠～无小水珠,现象说明杯子外壁的小水珠与冰块有关。 我的推测是:杯子周围的水蒸气遇到冰冷的杯子而凝结成的小水珠。 课堂练习 填空,1,夏天棒冰包装纸上有水珠 ,2,冬天密闭的窗户上有水珠 ,2,对于下列问题～你现在是怎么想的,学习第6节后～再填一填 我现在的想法 学习第6节后的想 法 空气中有水蒸气吗 有 有 教室里有水蒸气吗 有 有 水蒸气从哪里来 江、河、湖、海 江、河、湖、海 水蒸气能变成水能 能 吗, 是什么原因使水蒸遇到冷的物体 受冷 气变成水 the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the personnel Department of the company. (3) personal injury accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false, to inform the administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel 6、水和水蒸气 活动记录 我的想法:碟子里的水变成了水蒸气跑到空气中了。 课堂练习 1、填空题。 ,,,蒸发～凝结。 ,,,下雨后地面变干～湿布擦桌子后变干 ,、判断题。 ,1,× ,2,? ,3,× ,4,? ？.简答题。 ,,,吹风机吹、晒太阳、吸干水分等。 ,,,包装纸很冷～周围的气温较高～空气中的水蒸气受冷凝结在纸上～变成了小水珠。 7、水的三态变化 活动记录 略,见教学参考书, 课堂练习 判断题。,1,? ,2,?,3,?,4,× 单元练习 1、判断题。 ,1,?,2,× ,3,×,4,? ,5,? 2.选择题。 ,1,B,2,C ,3,C ,4,A ,5,B,6,B C ,7,C ,8,C the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the personnel Department of the company. (3) personal injury accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false, to inform the administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel 3( 35? 6? -4? 4(,1,水温逐渐下降～下降速度先快后慢。 ,2,23? 《磁铁》单元 1、我们知道的磁铁 活动记录 1(略 2(磁铁的形状:条形、圆形、饼形、环形、马蹄形、槽形等 磁铁的用途:门吸、磁性文具盒、磁性白板、小电动机、指南针、喇叭等 磁铁的性质:能吸铁、互相吸引、互相排开、隔着物体能吸铁、两端吸引力强 等 课堂练习 1(略 2(以下物品用到了磁铁(1)(3)(4)(7)(8) 3(判断题(1)?(2)?(3)?(4)?(5)? 2、磁铁有磁性 活动记录 略 课堂练习 1、判断题(1)?(2)?(3)?(4)?(5)× 2、选择题(1) B(2) B 3、? ? ? 3、磁铁的两极 活动记录 略 the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the personnel Department of the company. (3) personal injury accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false, to inform the administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel 课堂练习 1、填空题(1)磁极、两 (2)互相吸引、互相排斥 。 2、选择题(1)B (2)C (3)C (4)B 4、磁极的相互作用 活动记录 1. 我发现:一块能自由转动的磁铁，静止时磁极的一端朝北，另一端朝南。 2. 略 课堂练习 1.填空题。 (1)南北、南极、S、北极、N (2)吸引、排斥、吸引 (2)S极 2.判断题。 (1)×(2)? (3)? (4)× 5、磁力大小会变化吗 活动记录 略 课堂练习 1、判断题(1)? (2)? (3)× (4)× (5)? (6)× (7)× 2、 改变、 改变 ，略。 6、指南针 1.填空题。 (1)磁铁、磁针(2)方位盘、南极、北极(3)略。 2.选择题。 (1)C (2)B (3)C (4)A 3.简答题。 the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the personnel Department of the company. (3) personal injury accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false, to inform the administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel 方法一:用磁铁和指南针吸，吸住指南针北极的那端是磁铁南极，吸住指南针南极的就是磁铁北极。 方法二悬挂法，离磁铁较远处先用指南针判断方位，然后将磁铁悬挂，等待静止后观察磁铁的朝向。 7、做一个指南针 1.判断题。 (1)? (2)? (3)? 2.选择题。 (1)B (2)A (3)C 3.略。 单元练习 1.填空题。 (1)磁性 (2)同极 、异极 (3)磁极、 两 2.判断题。 (1)× (2)? (3)× (4)× (5)× (6)× 3.选择题。 (1)B (2)A (3)A (4)C (5)A 4.简答题 (1)方法一:用磁铁和指南针吸，吸住指南针北极的那端是磁铁南极，吸住指南针南极的就是磁铁北极。 方法二悬挂法，离磁铁较远处先用指南针判断方位，然后将磁铁悬挂，等待静止后观察磁铁的朝向。 (2)相互吸引，因为磁铁具有异极相吸的性质。 (3)用一块,去吸另一块,的中间，如果能吸住，,为磁铁;如果吸不住，则,为铁。 综合练习 the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the personnel Department of the company. (3) personal injury accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false, to inform the administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel ,、填空题。 (1)先长出根，再长出茎和叶 (2)叶，根，茎 (3)头、胸、腹，变态 (4)出生、生长发育、繁殖和死亡 (5)蒸发、凝结 (6)南极，S，北极，N (7)司南 2、判断题。 (1)× (2)× (3)? (4)? (5)? (6)× (7)× (8)? (9)× (10)? 3、选择题。 (1)A(2)C (3)A (4)C (5)B (6)C (7)C (8)A(9)A 四、填空图。 (1) 00(2)10C -5C (3)固态到液态是融化，液态到固态是凝结，液态到气态是蒸发，气态到液态是凝结，固态到气态是升华，气态到固态是凝华。 (4)图看不清楚，可以参看教科书上的插图。 (西北) (北) (西南) (东北) (东南) 五、简答题: 1、答题要点:多数植物能自己制造“食物”——养料，满足植物生长的需要。这些养料是由植物绿色的叶依靠阳光提供的能量，利用二氧化碳和水制成的。这种作用叫做光合作用，用公式表示如下: 2、答题要点:共有二种方法，只要写出一种得十分。一、用线系住磁铁的中间，把它挂在空中，等静止下来，指南的一端是南极，指北的一端是北极。二、the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the personnel Department of the company. (3) personal injury accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false, to inform the administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel 用一块已知南北极的磁铁的一个极去靠近，如果相吸，磁极正好相反;如果相斥， 则磁极一样。 the direct punishment 0.5-10,000 yuan, responsible for the direct responsibility for the accident and the responsibility of leadership, such as concerning administrative sanctions should be dealt with by the personnel Department of the company. (3) personal injury accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false, to inform the administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-2005 pressure vessel