课时作业一

课时作业一Tag内容描述：<p>1、课时作业(一)范围：第六章6.1金属材料的物理特性建议用时：15分钟一、选择题1“共享单车”既节能环保又方便出行。单车中的下列部件所用制作材料不是合金的是()A钢圈 B钢丝 C轮胎 D链条2下列有关金属的说法正确的是()A铜和硬铝都属于金属材料B青铜和黄铜都是铜的单质C铁、铝、铜都是银白色金属D不锈钢是永不生锈的钢铁3铜可用于制造传统的炭火锅，下列性质中与此用途无关的是()A熔点高 B导热性好C延展性好 D导电性好4下表列出的是某种金属的部分性质：硬度密度熔点导电性导热性延展性较软2.7 g/cm3660 优良优良优良根据以上性质，该金属不。</p><p>2、课时作业(一)曲线运动一、单项选择题1如图，一物体沿曲线由a点运动到b点，关于物体在ab段的运动，下列说法正确的是()A物体的速度可能不变B物体的速度不可能均匀变化Ca点的速度方向由a指向bDab段的位移大小一定小于路程解析：做曲线运动的物体速度方向时刻改变，即使速度大小不变，速度也改变，A错误；当物体的加速度恒定时，物体的速度均匀变化，B错误；a点的速度方向沿a点的切线方向，C错误；做曲线运动的位移大小一定小于路程，D正确答案：D2质点在一平面内沿曲线由P运动到Q，如果用v、a、F分别表示质点运动过程中的速度、加速度和受到。</p><p>3、课时作业(一)划时代的发现探究感应电流的产生条件一、单项选择题1如图所示，ab是水平面上一个圆的直径，在过ab的竖直平面内有一根通电直导线ef，已知ef平行于ab.当ef竖直向上平移时，电流产生的磁场穿过圆的磁通量将()A逐渐增大B逐渐减小C始终为零D不为零，但保持不变解析：作出磁感线穿过圆的情况的俯视图，如图所示，根据磁场对称性可以知道，穿入圆的磁感线的条数与穿出圆的磁感线的条数是相等的故选C.答案：C2如图所示的匀强磁场中有一个矩形闭合导线框，初始位置线框与磁感线平行，则在下列四种情况下，线框中会产生感应电流的是()A。</p><p>4、Section The Language Points of Reading课时作业(一)对应学生用书P3.完形填空2017北京高考Hannah Taylor is a schoolgirl from Manitoba, Canada. One day, when she was five years old, she was walking with her mother in downtown Winnipeg. They saw a man __1__ out of a garbage can. She asked her mother why he did that, and her mother said that the man was homeless and hungry. Hannah was very __2__. She couldnt understand why some people had to live their lives without shelter or enough food. Hannah s。</p><p>5、Section The Language Points of Reading课时作业(一)对应学生用书P15.完形填空2017全国卷While high school does not generally encourage students to explore new aspects of life, college sets the stage for that exploration. I myself went through this __1__ process and found something that has changed my __2__ at college for the better: I discovered ASLAmerican Sign Language (美式手语)I never felt an urge to __3__ any sign language before. My entire family is hearing, and so are all my friends. The __。</p><p>6、Section The Language Points of Reading课时作业(一)对应学生用书P27.完形填空What will man be like in the futurein 5,000 or even 50,000 years from now on? We can only make __1__， of course, but we can be sure that he will be __2__ from what he is today. For man is slowly changing all the time.Let us take an obvious __3__. Man, even five hundred years ago, was shorter than he is today. Now, on average, men are about three inches __4__. Five hundred years is a relatively short period of。</p><p>7、Section The Language Points of Reading课时作业(一)对应学生用书P51.完形填空Lauren, 17, was travelling home with her father from a first aid road show when they found the police alongside two young men lying face down in the street.Laurens father, Mick Askham, remembered, “The two young men had been __1__ in a street fight. Since the police werent carrying any first aid gear, they were __2__ when Lauren and I stopped to help.”Lauren said, “This was my first incident。</p><p>8、课时作业一力与物体的平衡一、选择题1(2019年山东省实验中学高三二模)如图1所示，将某均匀长方体锯成A、B两块后，在水平桌面上并放在一起，现用水平力F推B，使A、B整体保持长方体沿F方向匀速运动，则()图1AA在水平方向受到三个力的作用，且合力为零BA在水平方向受到五个力的作用，且合力为零CA对B的作用力方向与A、B接触面垂直DB对A的弹力大于桌面。</p><p>9、重庆市万州分水中学2012届高三语文二轮复习测试 课时作业一 一 语言基础知识 1 下列词语中加点的字 每对的读音都不相同的一项是 A 拮据 攻讦 毗邻 濒临 穷形尽相 相机行事 B 殉职 殒灭 晦朔 媒妁 光风霁月 江山社稷。</p><p>10、课时作业 一 第1讲 物质的量 气体摩尔体积 1 2012年2月20日 中国载人航天工程新闻发言人宣布 神舟九号飞船将于2012年6月至8月择机发射 发射神舟九号飞船的火箭使用偏二甲肼 C2H8N2 作燃料 下列叙述正确的是 A 偏二。</p><p>11、课时作业 一 必修1 Module 1 My First Day at Senior High 限时 35分钟 单项填空 1 He was asked to leave the company he was fired A as a result B in other words C in a word D in another word 2 Always read。</p><p>12、贵阳市2014高考英语 新人教版 一轮阅读训练 1 附答案 必修1 Unit 1 Friendship 课时作业 一 必修1 Unit 1 Friendship 限时 35分钟 The world always makes way for the dreamer When I was twelve years old my fat。</p><p>13、课时一 声现象 一 基础知识 1 声音的产生与传播 1 声音是由于物体 产生的 我们把正在发声的物体叫声源 2 声音以 的形式在物质中传播 声音可以在固体 液体和气体中传播 但不能在 中传播 3 声速与物质的种类和温度有。</p><p>14、课时作业 一 时间 45分钟 满分 45分 1 下列各句中 加点的成语使用恰当的一项是 A 傍晚 我在湖边散步 欣赏湖边如画的景致 这时 一位穿着长袍的年轻人骑着一匹马泰然处之地从我身边经过 B 李老不但平易近人 和蔼可亲。</p><p>15、课时作业 一 模块1 Unit 1 School life 限时 30分钟 单项填空 1 He is a man of and he had a lot of interesting in his life A much experience experiences B many experiences experience C much experience ex。</p><p>16、课时作业 一 必修1 Unit 1 Friendship 限时 35分钟 单项填空 1 about the student the teacher called his parents to find out why he was so often absent from class A Concerning B Concern C Concerned D To c。</p><p>17、课时作业 一 必修1 Module 1 My First Day at Senior High 限时 35分钟 单项填空 1 He was asked to leave the company he was fired A as a result B in other words C in a word D in another word 2 Always read。</p><p>18、课时作业 一 必修1 Unit 1 Friendship 限时 30分钟 完形填空 This is a true story Recently one of my best friends whom Ive 1 happiness and sorrow with since the first day of kindergarten spent the weeken。</p><p>19、课时作业 一 必修1 Unit 1 Friendship 限时 35分钟 单项填空 1 about the student the teacher called his parents to find out why he was so often absent from class A Concerning B Concern C Concerned D To c。</p><p>20、Unit 1 Friendship 语音知识 1 absence A accident B accept C account D achieve 2 come A college B collect C comfort D cloth 3 blanket A balance B arrange C around D anxious 4 aim A campaign B bargain C。</p>