综合测试三
现代教育技术_杨九民_综合测试试卷三
综合测试试卷三一.单项选择题1、网络教育中采用的网上考试属于教育技术研究范畴中的_____。
A.设计B.开发C.管理D.评价2、用计算机展示图片辅助课堂讲授,秉承了教育技术中_______的发展思路。
A.视听教学B.程序教学C.班级授课D.多媒体教学3、我国的教育技术实际上开始于20世纪初,在60多年的发展过程中一直被称为_____,直到20世纪八、九十年代才逐渐采纳了国际上的普遍提法——教育技术。
A.教学技术B.视听教育C.电化教育D.教育工艺4、教学设计一般过程中不断进行的形成性评价和修改的过程运用了系统科学中的_____。
A. 反馈原理B 有序原理C. 整体原理D. 控制原理5、下列关于戴尔“经验之塔”理论说法中错误的是________。
A.教学应从具体入手,逐步抽象,但也不能过分强调直接经验,还应注意引导学生发展抽象思维B.电视节目可以将遥远的宇宙、微小的生物、缓慢的花开过程等这些人眼不能观察到的事物栩栩如生地呈现在我们面前,为我们提供了丰富的直接经验C.提出了从具体到抽象划分学习经验的观点,后来成为视听教材分类的理论依据D.由于既照顾到了形象性,又摈弃了亲自实践中很多非本质因素的干扰,由媒体提供的经验往往能产生更好的学习效果6、拉斯威尔的5W传播模式中的“to whom”相当与香农-韦佛模式中的______,在传统教学中一般是学生。
A.信源B.信道C.信宿D.噪声7、被誉为当代程序教学之父的是_______。
A.皮亚杰B.斯金纳C.普莱西D.布鲁纳8、对从属技能的分析属于教学设计环节中的_______。
A.需求分析B.学习者分析C.学习内容分析D.学习目标分析9、在写电视节目的分镜头稿本时,下列描述镜头的项目中应填入“技巧”一栏的是_____。
A.特写B.摇C.7秒D.音乐渐起10、能体现学习者个体在实施信息加工、形成假设和解决问题过程的速度和准确性的学习风格分类是_______。
A.沉思型和冲动型B.整体策略型和序列策略型C.场依存型和场独立型D.顺时加工型和继时加工型二.多项选择题1.适合在接受式教学的导入阶段所做的工作有_____________。
中医妇科学综合测试卷三及答案
中医妇科学综合测试卷三及答案一、名词解释妊娠恶阻【答案】妊娠早期反复出现恶心呕吐,头晕厌食,甚则食入即吐者,称为妊娠恶阻。
闭经【答案】女子年逾18岁月经尚未初潮,或以行经又终端6个月以上者,称为闭经。
妊娠痫证【答案】妊娠晚期或临产时或新产后,突然眩晕仆倒,昏不知人,两目上视,牙关紧闭,四肢抽搐,角弓反张,片刻自醒,醒后复发,甚或昏迷不醒者。
脏躁【答案】妇人精神忧郁,情志烦乱,无故悲伤,哭笑无常,呵欠频作者,称为脏躁。
痛经【答案】凡在经期或经期前后,出现周期性小腹疼痛,或痛引腰骶,甚至剧痛晕厥者。
称为痛经。
二、填空1.___是女子青春期发育成熟的主要标志。
【答案】月经来潮2.《达生篇》中提出的六字真言是___、___。
【答案】睡忍痛、慢临盆3.月经先期伴月经过多,若未能及时治疗,可进一步发展为___。
【答案】崩漏4.正常的带下对阴道有___的作用。
【答案】润泽5.___是肾中产生的一种促进人体生长、发育和生殖的物质。
【答案】天癸6.胎儿及其附属物自母体娩出的过程称为___。
【答案】分娩7.妇科常用的内治法有___、___、___、___、___。
【答案】滋肾温肾、疏肝养肝、健脾和胃、调理气血、解毒杀虫8.闭经分为___和___。
【答案】原发性、继发性9.痛经的机理主要是“___”、“___”。
【答案】不通则痛、不荣则痛10.妊娠病的治疗原则是___与___并举。
【答案】治病、安胎11.子宫脱垂的主要机理是___、___。
【答案】冲任不调、提摄无力三、简答题1.月经的产生机理。
【答案】月经产生的主要环节是:肾气―天癸―任通冲盛―血溢胞宫,月经来潮。
女性14岁左右,随着肾中经气的充盛,天癸逐渐成熟,并通过天癸的作用,促成月经的来潮,而天癸是随着肾气的盛衰而变化的,所以肾气盛在月经产生的机制中起主导作用。
天癸是促使月经产生的重要物质,天癸自肾中化生泌至冲、任、并对冲任发挥重要生理作用。
任脉通,是指任脉在天癸的作用下,所司精、津、血、液充沛流畅。
三综合测试标准
三综合测试标准
三综合测试标准是指对电池安全性能进行评估的综合测试标准,主要包括三个方面的测试:热度、振动和穿刺测试。
热度测试是指在一定温度下对电池进行放电测试,以观察其在高温环境下的性能表现,包括电池的温升情况、放电能力、内阻变化等因素。
振动测试是指对电池进行振动测试,以模拟电池在使用过程中可能遇到的振动环境,观察电池的安全性能、连接件的牢固程度等因素。
穿刺测试是指对电池进行穿刺测试,以模拟电池在使用过程中可能遇到的外部物体撞击、损伤等情况,观察电池的安全性能、热释放情况等因素。
以上三个方面的测试相结合,可以全面评估电池的安全性能,为电池的设计和生产提供重要的参考依据,同时也为消费者选购电池提供了安全可靠的保障。
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综合测试3五年级奥数
综合测试31-1、55555×666667+44445×666666--155555=55555×666666+55555+44445×-666666-155555=(55555+44445)×666666+55555-155555=100000×6666661-00000=666665000001-2、100×100-99×99+98×98-97×97+96×96……+4×4-3×3+2×2-1×1=(99+1)×(99+1)-99×99+98×98-97×97+96×96……+4×4-3×3+2×2-1×1=99×99+99+99+1-99×99+98×98-97×97+96×96……+4×4-3×3+2×2-1×1=100+99+98+97+96……+4+3+2+1=(100+1)×100÷2=50502、在一次庆祝“六一”儿童节活动中,一个方队的同学每人手里都拿两种不同的气球,共有红、黄、绿三种颜色,其中红色有56只,黄色有60只,绿色有46只,那么,手拿红绿两种气球的有多少个同学?解:气球共有56+60+46=162只,每人两只,可以分给162÷2=81人,手里有黄色气球的人有60个,拿红绿气球的人有81-60=21人。
3、26人中,有13人喜欢打篮球,9人喜欢踢足球,12人喜欢打排球,有2人篮球、足球都喜欢,有2人排球、足球都喜欢,但没有1人三种球都喜欢。
问:有多少人喜欢打排球和篮球?解:如果每人喜欢一种球,那就应该有13+9+12=34人,实际只有26人,说明喜欢两种球的人被多算了1次,一共多算了34-26=8人,去掉喜欢篮球、足球和喜欢排球、足球的,剩下的就是喜欢排球、篮球的。
语文七上阶段综合测试卷三4-5单元(月考二)及答案
阶段综合测试卷三(月考二)[第四、五单元]时间:120分钟满分:100分一、积累·运用(27分)1.下列加点字的注音有误的一项是(3分)( )A.狭隘.(ài) 鄙.薄(bǐ) 坍.塌(tān)B.殉.职(xùn)禁锢.(gù)抽噎.(yē)C.怂.恿(sǒng)蜷.伏(juǎn)芙.蓉(fū)D.懒惰.(duò)热忱.(chén)干涸.(hé)2.下列词语中书写完全正确的一项是(3分)( )A.纯粹殉职极端联锁反应B.慷慨帐蓬饱满麻木不仁C.耸立瞋怪匍匐惊慌失措D.忧郁凝望预警畏罪潜逃3.下列加点的词语使用不正确的一项是(3分)( ),军官向井敏明、野田岩开展了“百人斩”A.日军侵占南京后,为了追求杀人技术的精益求精....杀人比赛。
B.有人说,人只有到了中年之后,才能深切地体味到人生的意义,对任何事情都不再妄下断语....,把难做的推给别人,把好做的留给自己。
C.对工作我们要认真负责,不应该拈轻怕重....的说法,不要深信不疑,只有经过实践的D.我们要本着科学的态度求证问题,对一些怪诞不经....检验,才能确定是不是真理。
4.下列句子中没有语病的一项是(3分)( )A.时至今日,王阳明的思想还在继续支配着中国读书人的头脑。
B.为了更好地加强未成年人的思想教育,我们一定要做好引导学生学习先进人物。
C.它使你如此鲜明地感受到生命的活跃、强盛和存在。
D.能否营造人人敬业奉献的浓厚氛围,关键是提升公民的道德修养。
5.结合语境,将下列语句填入横线处最恰当的一项是(3分)( )风吹过草原,无边的草叶根茎相连,轻轻摇曳,丝丝奏鸣,绿波微漾,送来缕缕清香,那是①。
风则显得更有耐心,它们一千年又一千年地从草尖儿轻轻掠过,为的只是等待一个机会,②,吹开几片薄薄的云彩。
A.①辽阔草原的喧哗与躁动②带走一点细细的泥土B. ①生命优雅的沉醉与逍遥②掀起一层松松的泥土C. ①辽阔草原的喧哗与躁动②掀起一层松松的泥土D. ①生命优雅的沉醉与逍遥②带走一点细细的泥土6.名句默写。
广东省 2023 届高三综合能力测试(三)数学试卷
广东省2023届高三综合能力测试(三)一、单选题:本题共8小题,每小题5分,共40分.在每小题给出的四个选项中,只有一项是符合题目要求的.1.已知集合A ,B 是R 的子集,且()A B =∅R ,则下面选项中一定成立的是 ( )A .AB ⊆B .A B B =C .A B A =D .A B =R2.若复数1z ,2z 在复平面内对应的点关于虚轴对称,且13i z =-,则12z z = ( )A .34i 55-- B .34i 55-+ C .43i 55-- D .43i 55-+ 3.“李白斗酒诗百篇,长安市上酒家眠”,本诗句中的“斗”的本义是指盛酒的器具,后又作为计量粮食的工具.某数学兴趣小组利用相关材料制作了一个如图所示的正四棱台来模拟“斗”,用它研究“斗”的相关几何性质.已知该四棱台的上、下底的边长分别是2、4,高为1,则该四棱台的表面积为( ) A.B .32C.20+D.20+4.在ABC △中,2AB =,AC =,45A =︒,点M 满足3BM BC =,则AM 的长度为( )A.B.C.D.5.数学家也有一些“美丽的错误”,如法国数学家费马于1640提出了以下猜想:形如221()nn F n =+∈N 的数都是质数.1732年,瑞士数学家欧拉证明了5F 不是质数,请你利用所学知识,估算5F 是( )位数.(参考数据:lg 20.3010≈) A .9B .10C .11D .126.已知奇函数()cos()(0)f x x ωϕω=+>的图象关于直线3x π=对称,且在区间0,6π⎡⎤⎢⎥⎣⎦上单调,则ω的值是( )A .23 B .34C .32D .27.已知椭圆2222:1(0)x y E a b a b+=>>,左焦点为F ,过F 作倾斜角为30︒的直线交椭圆E 于M 、N 两点,且MF FN λ=(其中1λ>),则λ的值为( )A .2B. C.D .38.某地质勘探队为研究各地区的水是否存在某种矿物质,现从不同地区采集了100个样本.勘探队中的成员甲提议用如下方式进行检测,先将100个样本分为10组,每组再选取部分样本进行混合,对混合样本进行检测,如果不含该矿物质,则检测下一组,若含有该矿物质,则逐个检测;成员乙提议将100个样本分为5组或20组等等.假设每个样本含有该矿物质的概率0.01p =,且每个样本是否含有该矿物质相互独立.则下列选项中检测次数的期望值最小的是 ( )(参考数据:50.990.951≈,100.990.904≈,200.990.818≈)A .5个一组B .10个一组C .20个一组D .逐个检验二、多项选择题:本题共4小题,每小题5分,共20分.在每小题给出的四个选项中,有多项符合题目要求.全部选对的得5分,选对但不全的得2分,有选错的得0分. 9.下列结论正确的是 ( ) A .若a b >,则lg lg a b > B .若22a b >,则a b > C .若a b >,c d >,则22ac bd >D .若22ac bc >,则a b >10.如图,圆锥OP 的底面O 的半径2r =,母线l =,点A ,B 是O 上的两个动点,则( )A .PAB △面积的最大值为2B .PAB △周长的最大值为4+C .当AB 的长度为2时,平面PAB 与底面所成角为定值D .当AB 的长度为2时,AB 与母线l11.已知动圆Q 过点(0,1),且与直线:1l y =-相切,记动圆Q 的圆心轨迹为Γ,过l 上一动点D 作曲线Γ的两条切线,切点分别为A 、B ,直线AB 与y 轴相交于点F ,下列说法正确的是( )A .Γ的方程为24x y = B .直线AB 过定点C .AOB ∠为钝角(O 为坐标原点)D .以AB 为直径的圆与直线1y =-相交12.已知函数21()e xf x ax a -=-+,1()ln g x x x=+,当[1,)x ∈+∞时,()()f x g x ≥恒成立,则实数a 的可能取值为( )A .12-B .0C .12D .2三、填空题:本题共4小题,每小题5分,共20分.把答案填在题中的横线上.13.某单位安排4名工作人员随机分到3个核酸采样点参加“核酸检测亮码”工作,且每个人只去一个采样点,每个采样点至少有一名工作人员,则安排方案的总数为 . 14.写出一个同时满足下列条件①②的函数()f x = .①()f x 的图象关于点(0,1)对称;②曲线()y f x =在点(1,(1))f 处的切线方程为41y x =-.15.若,02πα⎛⎫∈-⎪⎝⎭,sin (2cos )tan 2ααα=-,则tan α= .16.如图,ABC △是面积为1的等腰直角三角形,记AB 的中点为1A ,以1CA 为直角边第一次构造等腰11Rt A B C △,记11A B 的中点为2A ,以2CA 为直角边第二次构造等腰22Rt A B C △,…,以此类推,当第n次构造的等腰Rt n n A B C △的直角边n CB 所构成的向量n CB 与CB同向时,构造停止,则构造出的所有等腰直角三角形的面积之和为 .A12四、解答题:本大题共6小题,共70分,解答须写出必要的文字说明、证明过程或演算步骤. 17.(10分) 已知正项数列{}n a 的前n 项和为n S ,且满足221n n n a a S =-. (1)证明:数列2{}n S 是等差数列;(2)设数列1n S ⎧⎫⎨⎬⎩⎭的前n 项和为n T ,证明:10018T >.如图,直三棱柱111ABC A B C -的底面为等腰直角三角形,且1122AC BC AA ===,点D ,E ,F 分别是线段1AA ,AC ,11B C 的中点. (1)求点1C 到平面DEF 的距离;(2)求平面DEF 与平面CDF 夹角的余弦值.1已知ABC △的内角A ,B ,C 的对边分别为a ,b ,c ,且c =.(1)若cos b C =sin 3c B =,求A ; (2)若4b =,求ABC △面积的最大值.神舟十四号,简称“神十四”,为中国载人航天工程发射的第十四艘飞船,已经于2022年6月5日上午10时44分07秒在酒泉卫星发射中心发射,3名航天员陈冬、刘洋、蔡旭哲进驻核心舱并在轨驻留6个月.“神十四”的成功发射是我国载人航天上又一个重要的里程碑,实现了“神十四”与天宫一号的快速对接,创造了新的奇迹.为了宣传这一航天盛事,某高校组织了一场航天知识竞赛,共有1000名大学生参加,经统计发现他们的成绩(满分120)全部位于区间[50,110]内.现将成绩分成6组:[50,60),[60,70),[70,80),[80,90),[90,100),[100,110],得到如图所示的频率分布直方图,根据该直方图估计该1000名大学生成绩的平均分是77分.现规定前250名在10天后进行复赛.(1)求a ,b 的值(同一组数据用该组区间的中点值为代表),并根据频率分布直方图估计进入复赛的分数线(结果保留整数);(2)复赛共分为两个环节:A 和B .经统计,通过初赛的学生在准备复赛的首日有23的学生准备项目A ,其余学生准备项目B ;在前一天准备项目A 的学生中,次日会有45的学生继续选择准备项目A ,其余选择准备项目B ;在前一天选择准备项目B 的学生中,次日会有23的学生继续选择准备项目B ,其余学生选择准备项目A ,用频率近似估计概率,记某学生在第n 天准备项目A 的概率为n P ,求10P .已知双曲线2222:1(0,0)x y C a b a b -=>>,左、右焦点分别为1F ,2F,且(0,M ,12MF F △是正三角形.(1)求C 的方程;(2)若直线l 与C 仅有一个公共点P ,且与C 的两条渐近线分别交于A ,B ,记AOP △的面积为1S ,BOP △的面积为2S (O 是坐标原点),则1211S S +是否存在最小值?若存在,求出该最小值,若不存在,请说明理由.已知函数1()e sin x f x n x +=-+,,m n ∈R . (1)若0n =,讨论()f x 的零点个数;(2)若函数()f x 有零点,证明:223e m n +>.。
期末综合测试卷(三)
期末综合测试卷(三)第Ⅰ卷 (选择题 共30分)一、选择题(每题3分,共30分)1.现在航空母舰已成为各国海上军事实力的象征,下面有关航母的说法中错误的是【 】A.航母非常庞大,它能承载的东西很多,可见它在水中所受的浮力很大B.由于航母吃水深度很大,所以它只能停泊在深水港口C.涨潮时航母所受的浮力变大,落潮时航母所受的浮力会变小D.一艘航母从东海驶入南海,所受到的浮力不变2.在弹簧测力计下挂一实心物体,弹簧测力计的示数是F,如果把物体浸没在水中央,物体静止时弹簧测力计的示数为1/5F ,则该物体的密度是【 】A .0.8×103kg/m 3B .1.0×103kg/m 3C .1.25×103kg/m 3D .1.5×103kg/m 33.在打捞沉眠于长江里的“中山舰”时,打捞人员把许多充满水的巨型塑料浮筒绑在水底的船体上,然后向浮筒内充入压缩空气,把浮筒内的水排出筒外,从而把沉船从水下打捞起来,则浮筒在充入压缩空气后所受浮力和重力的大小关系是【 】A .浮力大于重力B .浮力等于重力C .浮力小于重力D .无法判断4.游客潜入海底观光,在水面下不断下潜的过程中,受到的浮力和压强的变化情况是【 】A .浮力逐渐变大B .浮力逐渐变小C .压强逐渐变大D .压强逐渐变小5.坦克越过壕沟时,可将备有的气袋放入壕沟,给气袋充满气,这样坦克通过壕沟就像走平地一样.当坦克在气袋上行驶时,对地面的压力和压强分别为F 1和P 1.设坦克在水平地面上行驶时,对地面的压力和压强分别为F 2和P 2,则下面有关两种情况下压力、压强的比较结果,正确的是【 】A .F 1=F 2;P 1=P 2B .F 1=F 2;P 1<P 2C .F 1=2F 2 ;P 1=2P 2 D .F 1=F 2;P 1>P 26.下列工具在使用时属于费力杠杆的是【 】A .定滑轮B .钓鱼竿C .剪铁皮的剪刀D .撬棒7.关于杠杆的说法正确的是【 】A.杠杆可以是直的也可以是弯的B.杠杆的支点一定在动力作用点和阻力作用点之间C.动力臂和阻力臂之和一定等于杠杆的长度D.杠杆平衡时,动力一定等于阻力 8.如图1所示的四种情景中,其中力对物体没有做功的是【 】A.火箭腾空而起的推力B.叉车举起重物的举力C.人推石头未动时的推力D.马拉木头前进的拉力9.1J=1N×1m,它表示【】A.把质量为1kg的物体移动1m所做的功B.把重为1N的物体移动1m所做的功C.1N的力作用在物体上,并使物体沿力的方向移动1m所做的功D.作用在杠杆上的动力为1N,动力臂是1m10.质量相等的甲、乙两物体在空中匀速下落,且下落的高度相等.已知甲下落的速度为1m/s,乙下落的速度为2m/s,则下落过程中,重力对两物体所做功的判断正确的是【】A.对两物体做的功一样多B.对甲做的功多C.对乙做的功多D.无法判断第Ⅱ卷(非选择题共70分)二、填空题(每题3分,共21分)11.如图2所示,把一个小球分别装入盛满不同液体的甲、乙两个溢水杯中,甲杯中溢出液体的质量是40g,乙杯中溢出液体的质量是50g,则小球的质量是_______g.12.如图3甲,一容积为0.5m3、底面积为0.5m2的容器装满水后密封,容器内水的质量是kg,水对容器底面的压力为N、压强为Pa.如图3乙,若在容器侧壁处开一小孔P,发现水不会从小孔流出,这是由于(ρ水=1.0×103kg/m3,g取10N/kg,大气压约为1.01×105Pa)13.将重为19.6N的铝球慢慢地浸没在一个盛满水的容器中,从容器中溢出了9.8N的水,铝球受到的浮力是N;由此可判断,这个铝球是(选填“空心”或“实心”)的.(铝的密度为2.7×103kg/m3)14.当居室的前后窗子打开时,“过堂风”会把侧面墙上的衣柜门吹开.这是因为衣柜外空气的流速比衣柜内空气的流速,衣柜外空气的压强,衣柜门受到一个向外的推力.(均选填“大”或“小”)15.如图4是一种拉杆式旅行箱的示意图,使用时相当于一个(选填“省力”或“费力”)杠杆,若箱和物品共重100N,设此时动力臂是阻力臂的5倍,则抬起拉杆的力F 为N.16.如图5所示,之所以要把上山的公路修成这般模样,是因为盘山公路相当于简单机械中的使用它可以.17.用一段细线将粗细均匀的直铁丝吊起后,直铁丝在水平位置处于平衡状态;若将右半部分对折.(1)可能出现的现象是端下降(选填“左”或“右”);(2)你猜的依据是.三、作图题(每题2分,共4分)18.在图6中,画出使轻质杠杆保持平衡的最小的力F的示意图(保留作图痕迹).19.如图7所示,请根据弹簧测力计拉力的方向,画出滑轮组的绕线.四、实验探究题(共26分)20.(8分)小欣在学习了力的知识后,为了探究拔河比赛取胜的“奥秘”,做了如图8所示的实验.第一次比赛小欣和小丽都站在水平地面上,两人相持不动,弹簧测力计的示数如图8甲所示;第二次比赛小丽站在滑板车上,小欣站在地面上,小欣轻而易举地把小丽拉了过来,弹簧测力计的示数如图8乙所示.请你帮小欣分析下列问题.(1)在第二次拉绳比赛中,小欣拉绳子的力(选填“大于”、“小于”或“等于”)小丽拉绳子的力.(2)第二次小欣拉绳子的力比第一次变小了反而还赢了比赛的原因是:____________________.(3)为了在校运动会上获得拔河比赛的冠军,请你为班级的拔河队提出至少两种合理化的建议,并说明其中的道理.21.(8分)小明用如图9所示装置研究浮力大小跟物体排开液体体积关系的实验时,将一挂在弹簧测力计下端的圆柱体金属块缓慢浸入水中(水充足).在金属块接触容器底之前,分别记下金属块下表面所处的不同深度h 和弹簧测力计相应的示数F,实验数据如表1:(1)由实验数据可知,金属块重_____N,完全浸没时受到的浮力是_____N.(2)表中第1次到第3次的实验数据,说明了浸在液体中的物体受到浮力大小与物体排开液体的体积_____(填“有关”或“无关”);分析表中第6次和第7次实验数据,说明了浸没在液体中的物体受到的浮力大小与深度_____(填“有关”或“无关”).(3)下面图10中能正确反映F和h关系的图像是【】22.(10分)如图11所示是“研究杠杆的平衡条件”实验中的几个主要步骤:①把钩码挂在杠杆两边,改变钩码的位置,使杠杆在水平位置平衡;②求出各次实验中动力乘以动力臂和阻力乘以阻力臂的值,根据得到的结果研究杠杆在什么条件下平衡;③把杠杆的中点支在支架上,调节杠杆两端的螺母,使杠杆在水平位置平衡;④改变力和力臂的数值,再做两次实验,将实验结果填在自己设计的表格里.(1)请按实验的合理顺序,把它们排列起来:__________.(只写出序号)(2)杠杆要用粗细均匀的木条,支点在它的中心,这样做的好处是:________________________________________.(3)实验前发现B端低,可将B端螺母向__________(选填“左”或“右”)边调节.(4)实验中总是让杠杆AB在水平位置平衡,这样做的好处是____________________,实验时要改变力和力臂多做几次,其目的是_______________.(5)不计杠杆质量和摩擦,每个钩码质量为50g,在图中E点挂两个钩码,在C点应挂__________个钩码才能使杠杆在水平位置平衡.(g=10N/kg)(6)表2是某实验小组测得的数据和结论,老师告诉他们这个结论是错误的,你认为他们出错的原因有哪些(写出两条即可)?①______________________________________________________________________②五、计算题(19分)(9分)如图12所示的滑轮组,不计拉线质量及滑轮摩擦.重物G=100N,23.每一个滑轮重20N.(1)当绳自由端拉力F竖直向上大小为30N时,重物G对地面的压力为多大?(2)拉力F为多大时?恰能让重物G匀速上升.(3)若重物G以0.1m/s的速度匀速上升,则绳自由端向上运动的速度为多大?24.(10分)“曹冲称象”是家喻户晓的典故.某校科技小组模仿这一现象,制作了一把“浮力秤”.将厚底直筒形状的玻璃杯浸入水中,如13所示.已知玻璃杯的质量为200g,底面积为30cm2,高度为15cm.(ρ水=1×103kg/m3)求:(1)将杯子开口向上竖直放入水中(注:水未进入杯内),静止时杯子受到的浮力.(g取10N/kg)(2)此时杯子浸入水中的深度(即为该浮力秤的零刻度位置).(3)此浮力秤的最大称量(即量程).参考答案一、选择题1.C 提示:由于航母在水中漂浮,所以它受到的浮力与它自身的重力有关,航母自身重力大了,浮力也变大;且对于同一艘航母所受浮力与涨潮落潮无关.2.C 提示:F=ρ物gV,F-15F=ρ水gV.3.A4.C 提示:游客潜入海底观光,在不断下潜过程中,排开海水的体积不变,海水的密度不变,所处的深度不断增大,所以浮力不变,压强逐渐变大.5.B 6.B7.A 提示:杠杆是能绕某一固定点转动的硬棒,所以杠杆既可以是直的,也可以是弯的.8.C 提示:C选项中,人对石头有力的作用,但石头并没有沿力的方向移动距离,则人对石头的推力没有做功.9.C10.A 提示:做功的多少只与物体所受力的大小及在力的方向上移动的距离的乘积有关,此题中,两物体质量相同,说明所受重力相同,且下落高度相等,则两物体所做的功是相等的.二、填空题11. 50 12.500;5×103;1×104;P点处的压强小于大气压强13.9.8 ;空心14.大;小15.省力;2016.斜面;省力17.(1)左;(2)右边重力不变,而重心向左移,即力臂减小三、作图题四、实验探究题20.(1)等于 (2)小丽站在滑板车上,与地面之间的摩擦力是滚动摩擦力,滚动摩擦比滑动摩擦小得多(3)运动员必须穿鞋底比较粗糙的鞋,增加接触面的粗糙程度,从而增大摩擦力;比赛场地不要有沙子,人踩在沙子上会产生滚动摩擦,减小摩擦力;必须选质量大的同学,通过增大压力从而增大摩擦力.21. (1)6.75;2.5 (2)有关;无关 (3)B22.(1)③①④②(2)让木条的重心通过支点,消除其重力对实验的影响 (3)左(4)便于直接读出力臂的大小;多记录几次数据,寻找F 1、F 2、L 1、L 2间的关系(5)3 (6)①实验次数少;②动力臂和阻力臂特殊五、计算题23.解析:(1)F=(F G )3+拉动,F 拉=3F-G 动=3×30N-20N=70N F 压=G 物-F 拉=100N-70N=30N(2)F ′=G G 3+物动()=100N 20N 3+()=40N (3)V 拉=nV 物=3×0.1m/s=0.3m/s24.解析:(1)静止时,水未进入杯内,即杯子漂浮于水面上,此时杯子受到的浮力与重力是一对平衡力.即F 浮=G =mg =200×10-3kg ×10N/kg=2N .(2)F浮=G排=ρ液gV 排,杯子浸入水中的体积即为排出液体的体积V =V 排=32(110kg /m 10 N /kg)N ⨯⨯3=2×10-4m 3,所以h=V/S =434(210m )3010m )--⨯⨯2/≈0.067m=6.7cm. (3)当杯子完全浸入水中但杯内未进水时,此浮力秤达到最大量程,此时G 物+G 杯=ρ液gV 排,所以最大量程为G 物=1×103kg/m 3×10N/kg ×30×10-4m 2×0.15m -2N =2.5N .。
2021届高三综合测试(三)英语 试题
华南师大附中 2021 届高三综合测试(三)英语试题注意事项:满分 120 分,考试时间 120 分钟1.答卷前,请务必用黑色字迹的钢笔或签字笔将自己的班级、姓名和考号填写在答题卡和答卷上。
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第一部分阅读(共两节, 满分 50 分)阅读下列短文,从每题所给的 A、B、C、D 四个选项中选出最佳选项。
A1.According to the passage, what does B1G1 do?A.Donate the profits to the people in need.B.Help consumers purchase their favorite products.C.Give away something extra when a product is sold.D.Instruct owners how to operate businesses effectively.2.How do the members feel about themselves as a part of B1G1?A.Confident.B. Proud.C. Generous.D. Energetic.3.What is the purpose of the passage?A.To invite businesses to B1G1.B.To promote the products B1G1 sells.C.To describe the gifts B1G1 gives.D.To introduce the activities B1G1 involves.B“We haven’t found anything that we can’t recycle!”Cigarette ends are everywhere—littering our streets and beaches—and for decades they’ve been thought of as “unrecyclable”. But a New Jersey based company, called TerraCycle, has taken on the challenge, and has come up with a way to recycle millions of cigarette ends and turn them into industrial plastic products. Its aim is to recycle things that people normally consider impossible to reuse.Obviously it would be even better for the environment if everyone just stopped smoking, but the statistics show that although there has been an increase in anti-smoking ads and messaging, between 2000 and 2014, global sales of cigarettes increased by 8 percent, and a whole lot of those cigarette ends are ending up as trash. Since most of our litter eventually ends up in waterways, cigarette ends can surely pollute the surrounding environment. “It only takes a single cigarette end to pollute aliter of water,” Terra Cycle founder, Tom Szaky, said. “Animals can also mistake littered cigarette ends for food.”So how do you go about turning all those poisonous ends into something useful? Terra Cycle does this by first breaking them down into separate parts. They mix the remaining materials, such as the tobacco and the paper, with other kinds of rubbish, and use it on non-agricultural land, such as golf courses. The filters (过滤嘴) are a little harder. To recycle these, Terra Cycle first makes them clean and cuts them into small pieces, and then combines them with other recycled materials, making them into liquid for industrial plastic products.They’re now also expanding their recycling offerings to the rest of the 80 percent of household waste that currently can’t be recycled, such as chocolate packaging, pens, and mobile phones. The goal is to use the latest research to find a way to stop so much waste ending up in landfill (垃圾填埋), and then get companies to provide money for the process. And so far, it’s working.“We haven’t found anything that we can’t recycle,” communications director of Terra Cycle, Albe Zakes, said. “But with t he amount and variety of packaging and litter in the world, we are always looking for new waste streams to address.”4.What does Terra Cycle intend to do?A.Search for recyclable materials for use.B.Deal with as many cigarette ends as possible.C.Produce new kinds of industrial plastic products.D.Recycle what used to be considered unrecyclable.5.The underlined word “trash” in Paragraph 2 probably means .A.rubbishB. poisonC. disasterD. ruin6.What does Paragraph 3 mainly talk about?A.The effective use of cigarette ends.B.The process of recycling cigarette ends.C.The difficulty in recycling cigarette ends.D.The reason for breaking down cigarette ends.7.What Albe said in the last paragraph implies that .A.there is more and more waste to be recycledB.it is difficult for Terra Cycle to recycle everythingC.Terra Cycle is trying to meet the challenge of new wasteD.Terra Cycle has successfully recycled a large amount of wasteCRats and other animals need to be highly tuned to social signals from others so that they can identify friends to cooperate with and enemies to avoid. To find out if this extends to non-living beings, Loleh Quinn at the University of California, San Diego, and her colleagues tested whether rats can detect social signals from robotic rats.They housed eight adult rats with two types of robotic rat --- one social and one asocial---for 5 days. The robots rats were quite minimalist, resembling a chunkier version of a computer mouse with wheels---to move around and colorful markings.During the experiment, the social robot rat followed the living rats around, played with the same toys, and opened caged doors to let trapped rats escape. Meanwhile, the asocial robot simply moved forwards and backwards and side to side.Next, the researchers trapped the robots in cages and gave the rats the opportunity to release them by pressing a lever.Across 18 trials each, the living rats were 52 percent more likely on average to set the social robot free than the asocial one. This suggests that the rats perceived the social robot as a genuine social being. They may have bonded more with the social robot because it displayed behaviours like communal exploring and playing. This could lead to the rats better remembering having freed it earlier, and wanting the robot to return the favour when they get trapped, says Quinn.The readiness of the rats to befriend the social robot was surprising given its minimal design. The robot was the same size as a regular rat but resembled a simple plastic box on wheels. “We’d assumed we’d have to give it a moving head and tail, facial features, and put a scene on it to make it smell like a real rat, but that wasn’t necessary,” says Janet Wiles at the University of Queensland in Australia, who helped with the research.The finding shows how sensitive rats are to social cues, even when they come from basic robots. Similarly, children tend to treat robots as if they are fellow beings, even when they display only simple social signals. “We humans seem to be fascinated by robots, and it turns out other animals are too,” says Wiles.8.Quinn and her colleagues conducted a test to see if rats can .A.send out warning messages to their fellowB.distinguish a friendly rat from a hostile oneC.attain sociable traits through special trainingD.pick up social signals from non-living rats9.What did the asocial robot do during the experiment?A.It followed the social robot.B.It played with some toys.C.It moved around alone.D.It set the trapped rats free.10.According to Quinn, the rats released the social robot because they_ .A.tried to practice a means of escapeB.expected it to do the same in returnC.wanted to display their intelligenceD.considered that an interesting game11.It can be learned from the text that .A.rats are more sensitive to social cues than expectedB.rats are more socially active than other animalsC.rats behave differently from children in socializingD.rats appear to be adaptable to new surroundingsDYou’ve probably heard that brick-and-mortar retail(实体零售) is in trouble. Even industry giants are closing hundreds of stores. Given retail’s gradual change to mobile and e-commerce, you may be wondering. What will retail look like in the future? Nobody knows. But here are a few things you can expect to see based on current technology.Ultrafast delivery is coming. Today, the normal practice is two-day delivery. But if you’ve been paying attention, you know that’s changing. In fact, a surprisingly high 25% of consumers said that they would abandon their orders if one-day delivery wasn’t avail able. Of course, that’s just the beginning. Two-hour delivery is coming in the foreseeable future, and Amazon has already been trying 30-minute delivery.Your kitchen will resupply itself. You won’t have to worry about running out of essentials like coffee, pet food or snacks because your containers will sense stock levels and replace those items without you having to lift a finger. No more waking up to find your coffee store is empty or last-minute trips to the grocery store because you forgot to buy pet food.Know exactly what’s in stock and where. Have you ever gone to a store hoping to buy something, only to learn that they were out of stock? A new feature from Google Home allows people to ask Google Assistant to find in-stock products at the closeststo re. For example: “Google, where can I find the Nintendo Switch console?” An assistant will tell you how many stores have it right then and how close they are. Of course, it isn’t currently available for all stores in all locations, but you can already see a future when it has become standard.Convenience, experience, and options---retail will take on a new look.12.How does the author develop the passage?A.By arguing and debating.B.By asking and answering.C.By analyzing and commenting.D.By comparing and concluding.13.What can we know from Paragraph 2?A.Consumers can’t get their orders in one day now.B.Superfast delivery has widely been used now.C.The delivery will be in two days in the future.D.It is possible to deliver goods within two hours in the future.14.According to the passage, what will happen in the future?A.Shopping will be more convenient and effective.B.Industrial giants will rule the whole retail trade.C.Retail will disappear gradually.D.People will ask Google Assistant to purchase goods.15.What’s probably the best title of the passage?A.How Will We Run the Retail Trade in the Future?B.How Will New Technology Change the World?C.What Will Retail Be Like in the Future?D.What Benefits Will High-tech Bring in the Future?阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项。
(苏教版)初中生物七年级下册 第八章综合测试(三)附答案
第八章综合测试一、单选题1.下列有关染色体数量的说法不正确的是()A.同种生物细胞内数量相同,而不同种的生物往往不相同B.生物体细胞内染色体成对存在,生殖细胞内则成单存在C.水稻一个体细胞内含12对染色体,一个生殖细胞内含6对染色体D.受精卵内的染色体数目与体细胞一样2.下列不属于青春期发育特点的是()A.身高突增B.性器官迅速发育C.身体迅速发胖D.自我意识增强3.下列生理现象中,不属于因青春期性发育而引起的是()A.女孩会来月经B.男孩睡梦中出现遗精现象C.学习紧张导致眼睛近视D.进入青春期后,性意识开始萌动4.进入青春期后,男性出现第二性征,与其变化直接关系的激素是()A.甲状腺激素B.雄性激素C.肾上腺激素D.胰岛素5.能分泌性激素的器官是()A.子宫和睾丸B.输卵管和输精管C.卵巢和贮精囊D.卵巢和睾丸6.下列关于人体部分器官功能的叙述,不正确的是()A.膀胱——暂时储存尿液B.子宫——受精的场所C.肺——气体交换的场所D.小肠——消化和吸收的主要场所7.下列现象中,不属于第二性征的是()A.男性喉结突出,声音变粗B.男性胡须、腋毛等的生长C.女性乳房增大,声音较高D.女性卵巢发育迅速,重量增加8.人的发育在受精卵到胎儿呱呱坠地前的整个过程中,胚胎生长发育所需的养料分别来自()A.卵黄和胎盘B.胎盘和卵黄C.卵黄和卵黄D.胎盘和胎盘9.下列是生物生殖和发育有关的示意图,其分析正确的是()A.图甲所示生物与图丁的发育过程相同,都是完全变态发育B.图乙所示的繁殖方式可以引进优良品种,缩短繁育周期C.丙图中的胎儿所需的营养直接由[a]羊水提供D.图中四类生物的生殖都是有性生殖10.下列有关人的生殖过程的叙述错误的是()A.精子和卵细胞在输卵管结合B.胚胎和胎儿在子宫发育C.胎儿产生的废物通过胎盘从母体排出D.胎儿通过脐带和乳腺从母体获得营养11.人体精子与卵细胞结合形成受精卵的场所是()A.阴道B.卵巢C.子宫D.输卵管12.人的性别是在下列哪个过程中决定的()A.精子和卵细胞结合时B.母体中发育时C.胎儿出生时D.青春期发育时13.下列女性生殖器官中,能生成卵细胞并分泌雌性激素的是()A.卵巢B.子宫C.输卵管D.阴道14.女生在月经期间要保持卫生和保证休息的原因是()A.心理波动大,情绪不稳定B.生殖器官出现创伤C.身体处于病态D.身体抵抗力暂时下降15.正常人的生殖细胞、体细胞、受精卵中染色体的数目分别为()A.23条、46条、23条B.46条、46条、46条C.23条、46条、46条D.46条、46条、23条16.下列中构成心脏的组织主要是()A.上皮组织B.肌肉组织C.神经组织D.结缔组织17.胎儿通过脐带与胎盘相连,胎盘的主要作用是()A.胎儿连接母体的器官B.胎儿与母体进行物质交换的器官C.胎儿的器官D.母体的器官18.“女大十八变,越变越好看”,下列与这种变化直接相关的器官是()A.卵巢B.子宫C.输卵管D.肾19.“试管婴儿”是解决不孕的有效手段。
中医外科学综合测试卷三及答案
中医外科学综合测试卷三及答案一、单项选择题(共20分,每题1分):每题四个备选答案,只有一个最佳答案,答题时只许从中选择一个最佳答案。
1.我国第一部外科专著是()A.《五十二病方》B.《金创瘛纵方》C.《刘涓子鬼遗方》D.《外科正宗》2.对外科疾病创立以阴阳为主的辨证论治法则是清代的()A.《外科正宗》B.《外科理例》C.《外科全生集》D.《疮疡经验全书3.疖、痈、发是以命名的。
()A.症状B.形态C.范围大小D.疾病特性4.下列那些疾病不属于无头疽的范畴()A.附骨疽B.环跳疽C.发背疽D.足踝疽5.下列疾病与饮食不节无关的疾病有()A.肠痈B.内痔C.脱疽D.痤疮6皮肤搔痒,并伴有干燥、脱屑、变厚,很少糜烂流水,其病因为()A.风胜B.虫淫C.热盛D.血虚7 身体轻便,不怒不惊,指甲红润,二便通利。
此五善中的()A.心善B.肝善C.肺善D.肾善8.指出下列哪些是提脓祛腐的药物()A.升丹B.八宝丹C.白降丹D.红灵丹9.哪种疔疮最容易损伤筋骨()A.颜面疔疮B.手足疔疮C.红丝疔D.疫疔10.外吹乳痈是指()A.妊娠期乳痈B.哺乳期乳痈C.非妊娠期乳痈D.非哺乳期乳痈11.乳痈成脓切开引流应采用()A.竖切口B.斜切口C.横切口D.放射状切口12.气瘿的内治法宜疏肝理气,解郁消肿,选用方剂是()A.海藻玉壶汤B.逍遥散C.四海舒郁丸D.通气散坚丸13.下列哪一个病名与臁疮无关?()A.裙边疮B.裤口疮C.老烂腿D.浸淫疮14.在伤口周围皮肤可出现捻发音的是()A.附骨疽B.烂疔C.疫疔D.流注15.乳房皮肤出现“橘皮样改变”常见于下述哪种疾病?()A.乳腺癌B.乳腺增生病C.乳腺炎D.乳房纤维腺瘤16.下列疾病中无血尿的是()A.尿石症B.膀胱癌C.肾癌D.慢性前列腺炎17.下列哪个症状不是肠梗阻的典型临床表现?()A.腹痛B.腹胀C.呕吐D.腹泻18.治疗原发性大隐静脉曲张最根本的方法是()A.药物治疗B.手术治疗C.注射硬化剂D.穿弹力袜19指出下列不属于皮肤病外用药物的剂型()A.洗剂B.油剂C.膏药D.酊剂20.深2度烧伤的痛觉特征是()A.痛觉迟钝B.剧痛,感觉过敏C.痛觉消失D.红肿热痛,痛觉过敏二.多项选择题(共20分,每题1分):每题四个备选答案,正确答案为2~4个,答题时选出所有正确的答案。
一年级下册数学试题期末综合测试卷(三)含答案
综合测试卷(三)(时间:60分钟;满分:100分)一、仔细填空。
(25分)1.59里面有()个十和()个一;一个两位数由5个一和7个十组成,这个数是()。
2.一张可以换()张,也可以换()张,还可以换()张。
3.按规律画一画。
(1)○□○□_________(2)△□□○△□□○____________4.最大的两位数减去最小的两位数,结果是()。
5.5个5个地数,10后面分别是(),(),()。
6.在□7>76中,□里可以填的最大的数是(),最小的数是()。
7.芳芳看一本故事书,第一天看了18页,第二天看了22页,第三天应从第()页开始看起。
8.一个加数是27,另一个加数比它大3,这两个加数的和是()。
9.如下图,长方形中一共有()个数,圆中一共有()个数。
10.用1,2,3能组成()个两位数,分别是()。
二、直接写出得数。
(12分)7+43=45-30=35-7=34+7=30+60=66+6=58-5=70+7=15-9=25+45=55-8=16+20=三、用竖式计算。
(16分)32+58=74+19=82-45=64-18=56+27=64+35=57-27=89-60=四、填写下表。
(6分f)五、把下面的正方形分成大小、形状完全一样的四份。
(6分)六、在合适的答案后面打“√”。
(6分)1.1张5元和50张1角相比,结果怎样?1张5元多()一样多()50张1角多()2.十位数字比个位数字小4的两位数一共有几个?3个()4个()5个()3.用8根同样长的小棒,不能摆成下面哪个图形?圆形()长方形()三角形()4.小丽有10元钱,最多可以买下面的几样?2样()3样()4样()5.在计数器上拨3颗珠子,可以表示出几个两位数?2个()3个()4个()6.一(1)班有24人参加写字比赛,一(2)班参加的人数比一(1)班少一些,一(2)班可能有多少人参加?11人()21人()31人()七、解决实际问题。
三综合测试是什么
三综合测试是什么
三综合测试是什么?三综合测试是指〃温度+湿度+振动综合测试〃,与单一因素作用相比,三综合测试更能真实地反映电工电子产品在运输和实际使用过程中的性能情况,更能暴
露产品的缺陷问题。
温湿度及振动三综合试验广泛运用于航空、航天、军工、电工、电子等产品整机及零部件上。
三综合测试对产品和材料研制、样机试验、产品合格鉴定试验全过程必不可少的重要试验手段。
温湿度及振动三综合试验的测试标准
三综合测试标准参考:GB/T2423.35 , GB/T2423.36 ,
IEC/EN60068-2-50;IEC/EN60068-2-51o
三综合测试:温度+湿度+振动测试参数范围
最低温度:-70℃,最高温度:150℃
控制稳定度:±0.5℃
分布均匀度:±1.5℃
温度偏差:<±2℃
正常升温时间:常温RT+2(rC~ + 150。
(:小于45分钟非线性空载。
正常降温时间:常温RT+20〜-40℃小于60分钟非线性空载.
湿度范围:20%〜98%RH〜(10%〜98%RH/5%〜98%RH供特殊测试条件选择)湿度波动度:±1%RH
湿度均匀度:±3.0%RH
如您有相关产品需要咨询,欢迎您直接来电咨询我司工作人员,获得详细的费用报价与周期等信息。
综合测试题三(答案版)
综合测试题三(答案版)无人机驾驶员、机长模拟试题(三)满分:100分时间:120分钟1、超低空无人机任务高度一般在______ 之间(1 分) A.0-100mB.100-1000mC.0-50m2、微型无人机是指(1分)A 空机质量小于等于7千克的无人机B 质量小于7千克的无人机C 质量小于等于7千克的无人机3、______航空器平台结构通常包括机翼、机身、尾翼和起落架等。
(1 分)A.单旋翼B.多旋翼C.固定翼4、无人机地面站显示系统应能显示______ (1 分)A.无人机飞行员状态B.飞行器状态及链路、载荷状态C.飞行空域信息5、下列哪项是飞行控制的方式之一______ (1 分) A.陀螺控制B.指令控制 C.载荷控制6、地面控制站飞行参数综合显示的内容包括______ (1 分) A.飞行与导航信息、数据链状态信息、设备状态信息、指令信息 B.导航信息显示、航迹绘制显示以及地理信息的显示 C.告警信息、地图航迹显示信息7、飞控子系统必须具备的功能______ (1 分)A.无人机姿态稳定与控制,无人机飞行管理,应急控制B.无人机飞行管理,与导航子系统协调完成航迹控制,信息收集与传递C.无人机起飞与着陆控制,无人机飞行管理,信息收集8、具有正静安定性的飞机,当受到扰动是平衡状态变化后,有______ (1 分) A.回到原来平衡状态的趋势 B.继续偏离原平衡状态的趋势 C.保持偏离后的平衡状态9、飞机的方向安定性过强,而横侧安定性相对过弱,飞机容易出现______ (1 分) A 飘摆(荷兰滚) B 螺旋不稳定 C 转弯困难10、机场标高指着陆区______的标高。
(1 分) A.最高点 B.最低点 C.平均海拔11、空域通常划分为①机场飞行空域②航路.航线③空中禁区.空中限制区和空中危险区______ (1 分) A.①② B.①③ C.①②③12、空域管理的具体办法由______ 制定(1 分) A民用航空局; B 中央军事委员会; C国务院和中央军事委员会13、在一个划定的管制空域内,由______ 负责该空域内的航空器的空中交通管制(1 分) A军航或民航的一个空中交通管制单位; B军航和民航的各一个空中交通管制单位; C军航的一个空中交通管制单位 14、气体的压力P、密度ρ、温度T三者之间的变化关系是(R为理想气体常数)__ (1 分) A. T=PRρ B.P=Rρ/T C. P=RρT15、当机翼和尾翼积冰时,下列不正确的描述是______ (1 分) A.翼型失真(变型) B.导致摩擦阻力减少 C.压差阻力都增大16、气温高低,如何影响飞机滑跑距离?______ (1 分)A.气温高时,空气密度小,飞机增速慢,飞机的离地速度增大,起飞滑跑距离要长 B.气温低时,空气密度小,飞机增速快,飞机升力减小,起飞滑跑距离要长 C.气温高时,空气密度大,飞机增速快,飞机升力增大,起飞滑跑距离要短 17、在温暖的天气飞行在较低高度,有时会遇上湍流空气,以下描述正确的是______ (1 分) A.很可能在路面和荒地上空发生上升气流B.在类似成片树林的广阔植被区域发生上升气流 C.在大片水体区域发生上升气流18、在卫星云图上,可见光云图的色调取决于______(1分) A.目标反射太阳辐射的大小 B.目标的温度 C.目标的高度19、地面风具有明显日变化的主要原因是______(1分) A.气压的变化B.摩擦力的变化C.乱流强度的变化20、锋是三度空间的天气系统,锋的宽带同气团宽度相比显得很狭窄,因而常把锋区看成一个几何面,称为锋面,下面描述错误的是______(1分)A.锋面与地面的交线称为锋线 B.锋面和锋线统称为锋 C.凡伸到对流层中上层者,称为层流锋21、冷锋是指:______(1分)A.冷气团主动向暖气团移动形成的锋称为冷锋B.一侧气团温度明显低于另一侧气团温度的锋C.温度较高与温度较低的两个气团交汇时,温度低的一侧22、在实际运用中,通常使用气温的垂直递减率单位为:______(1分)A.℃/1000mB.℃/500mC. ℃/100m 23、.空气中容纳水汽的数量随气温变化,气温越高,则:______(1分) A.可以容纳的水汽就越少 B.可以容纳的水汽就越多C.当空气不能再容纳更多的水汽时,温度就会变化 24、飞机在比标准大气冷的空气中飞行时,气压高度表所示高度将比实际飞行高度___(1 分)A.相同 B.低 C.高25、在下述何种情况下容易碰到风切变______ (1 分) A.逆温层附近或靠近雷暴时 B.当风速大于65千米/小时时 C.有高气压时 26、快速移动的冷锋受实际锋面后远处的强烈压力系统推动,在快速移动的冷锋之后(1分) A.可能出现乌云密布的天空和下雨 B.天空通常很快放晴C.阵风减缓和温度升高27、空气在水平运动时,是什么力阻止了空气直接从高压区流向低压区______(1分) A.惯性离心力 B.地转偏向力 C.摩擦力28、对流层______的空气运动受地形扰动和地表摩擦作用最大,气流混乱。
Unit 7 综合评价测试题(三) 2022-2023学年仁爱版英语七年级下册
七下(仁爱版)Unit 7 综合评价测试题(三)Class_________ Name ____________ Number_________一、单项选择( )1.—Did you ________ ping-pong with your brother yesterday?—No, we ________ soccer.A.played; played B.play; play C.played; play D.play; played ( )2.—Did your friends and you hear what the guide said in the museum?—________. We were busy talking with each other at that time.A.Yes, we were B.No, we weren’t C.Yes, we did D.No, we didn’t ( )3.—________ you stay at home last Sunday afternoon?—No, I ________ a kite with my friends in the park.A.Do; fly B.Were; flew C.Did; flew D.Did; fly( )4.A few minutes later, a car came and ________ the man to the hospital.A.brings B.brought C.takes D.took( )5.________ you clean your bedroom this morning?A.Did B.Do C.Were D.Are( )6.I ________ ride a bike, but I ________ drive a car.A.can, can B.can’t, can’t C.can, can’t( )7.In the ________ picture, a boy is swimming.A.one B.first C.firstly D.two( )8.________ is the eighth month of the year and it is after July.A.November B.September C.August D.October( )9.It is ________ birthday of the boy.A.nine B.the nine C.the ninth D.ninth ( )10.There are ________ books on the desk and the ________ book is about the history of the Eiffel Tower.A.five; five B.fifth; fifth C.five; fifth D.fifth; five 二、完形填空In America, the students usually start school at 9 a.m. and _____1_____ school at about 4 p.m. The school subjects are different from _____2_____. In China, we always have Chinese, math, English, P. E and so on. But in America, students have _____3_____ lessons than Chinese students, such as cooking and driving lessons. Their school life isn’t _____4_____ about study. They have many things to do, too. There are many clubs in American schools, too. If the students are interested in _____5_____, they can join art clubs. American students also have sports clubs, language clubs and some _____6_____ clubs. From 2: 30 p.m., to 4 p.m., they do different things in different clubs.Maybe you think English is very popular in the world, so American students don’t need to learn another language. _____7_____ that’s not true. It is very _____8_____ for American children to learn a foreign(外国的) language. For example, they _____9_____ French or Chinese. They usually start it _____10_____ they enter the primary school.( )1.A.live B.follow C.remember D.leave( )2.A.our B.ours C.us D.we( )3.A.many B.much C.more D.lots of( )4.A.also B.still C.just D.never( )5.A.drawing B.sports C.music D.stories( )6.A.other B.another C.others D.the others( )7.A.Or B.So C.But D.And( )8.A.important B.friendly C.lazy D.lucky( )9.A.study B.speak C.use D.remember( )10.A.though B.be C.if D.before三、阅读理解My English name is Cherry. Today is my birthday. I’m l3 years old. My father buys me a big cake. My mother cooks noodles and other delicious food for me. Ihave a good time.Jack is from the USA.Today is his twelfth birthday. His parents have a big party for him. All of his good friends come to his house. They sing, dance,play games and eat the cake. How happy they are!Lisa is from the UK. She has a twin (双胞胎的) brother, Bob. They have the birthday on the same day. Today is their tenth birthday. There is a big cake and other nice food on the table. Lisa makes a wish: she wants her parents tobe healthy. Now, they are blowing out the candles.( )1..How old is Cherry?A.Ten.B.Eleven. C.Twelve D.Thirteen.( )2.What does Cherry do today?A.She sings some songs.B.She eats some noodles.C.She buys a big cake.D.She cooks food for her mother.( )3.Where does Jack come from?A.China.B.Canada.C.America.D.England. ( )4.How many people are there in Lisa’s family?A.Two.B.Three.C.Four.D.Five.( )5.Which of the following is TRUE about Lisa’s wish?A.She wants to have a big party.B.She wants her grandparents to have a long life.C.She wants her parents to be healthy.D.She wants her parents to have good jobs.四、词汇运用1.— Did you have a good time at the party ?— Of course. We all e______ ourselves.2.—What is the ________ (十二) month in a year? —December.3.Who ________ wants to buy that kind of card? (其他)4.Look! They are ___________(计划)a trip to Guangzhou.5.When Lily was a little kid, she often ________ (放) kites in the park.6.The teacher ________ ________(分发)the papers(试卷).7.The careless boy forgot to close the door of the cage and the bird ________(飞)away. 8.He washed his hands and then ___________(摆放)the table.9.John was ill yesterday, so he didn’t ________ the meeting.10.He overslept and ________ his flight this morning. What bad luck !五、情景交际John:Hi, Linda! What’s the date today?Linda: 1John:What are you going to do?Linda: 2 Because tomorrow is her birthday.John:Oh! Glad to hear that. 3Linda:I’ll do some washing and cooking for my mom. My father will buy her a birthday cake.John:Oh! 4Linda:I’m also happy to do something for her. She works hard for my family. I love her. John:You’re right. 5Linda:Thank you.1. 2. 3. 4. 5.六、短文填空Helen has a daughter. Her name is Betty. Tomorrow is June 1, 1 Day.It’s Betty’s birthday. Helen wants to 2 a party for her. She wants to buy some food, 3 she goes to a food shop. Then she goes to a 4 store. She wants to buy shirts and sweaters for Betty. Betty’s favorite 5 is blue, so she buys blue skirts and sweaters. They 6 very nice. She thinks Betty will love 7 very much.Helen meets her friend Alice. Alice has a daughter. Her birthday is on June 1, 8 . Theirbirthdays are on the 9 day. Helen 10 Alice to take her daughter to her home tomorrow so that they can have dinner together(一起). They will have a good time!1.___________2.___________3.___________4.___________5.__________6.__________7.___________8.__________9.___________10.__________参考答案一、单项选择DDCDA CBCCC二、完形填空DBCCA ACAAD三、阅读理解DBCCC四、词汇运用1.enjoyed2.twelfth3.else4.planning5.flew6.handed out7.flewid9.attend 10.missed五、情景交际CEDBG六、短文填空1.Children’s 2.have/hold 3.so 4.clothes/clothing 5.color/colour 6.look/are 7.Them 8.too 9.same 10.asks/invites。
有机化学综合测试题3(人卫版)
有机化学综合测试题3(人卫版)work Information Technology Company.2020YEAR综合测试题(三)一、命名下列各化合物(标出D/L,R/S构型)或写出结构式1. CH3CH2CHCHCH3CH3CH2CH3 2.CH3HHOH3. CH3COCH2COOH4. COOHNH2HCH3(标出R/S构型)5. CHCH=CHCHO6. (E)-3-甲基-2-己稀7. 2-丙基甲苯 8. N-甲基苯胺9. 3-己稀-2-酮 10. β-D-吡喃葡萄糖二、填空题1. 己烷中碳原子的杂化形式是,其碳链在空间呈现出状分布。
2. 写出1-甲基环己烯分别与HBr和KMnO4/H+试剂的反应式:3. 写出甲苯分别与Br3+FeBr3和KMnO4/H+试剂的反应式:4. 甲苯在化学性质上表现为芳香性,芳香性化合物具有的特殊结构。
5. 甲酚是、和三种位置异构体的混合物。
甲酚还有两种官能团异构体,它们的结构分别为、,其中对氧化剂稳定的是。
6. 邻羟基苯甲酸俗称水杨酸,其构造式为,分别写出水杨酸与乙酐、水杨酸与甲醇在浓硫酸存在下的反应式:7. 丁酮二酸又称草酰乙酸,草酰乙酸有稳定的烯醇式异构体,写出其烯醇式结构:;草酰乙酸受热易发生反应。
8. 卵磷脂的组成成分有甘油、高级脂肪酸、磷酸和胆碱,它们通过和彼此结合而成,在生理PH下,卵磷脂主要以形式存在。
9. 丙氨酸(PI=6.02)溶于纯水中,其PH所在范围为。
三、选择题(一)单选题1. 下列化合物中,具有σ键的是()。
A. CH3CH2CHO B. CH3CH=CH2C. CH3CH2OH D.OH2. 下列化合物中,含有2种官能团的是()。
A. CH3CH2CHO B. CH2=CHCHOC. CH3CH2CH2OH D. HOOCCH2COOH3. 下列化合物中,不具有顺反异构的是()。
A. CH3CH=CHCH3B. (CH3)2C=CHCH3C. CH2=CHCH=CH2D. CH3CH=CHCHO4. 下列化合物中,能被酸性高锰酸钾氧化的是()。
广东省2023届高三综合能力测试(三)地理试题
广东省2023届高三综合能力测试(三)地理试题一、选择题本大题共16小题,每小题3分,共48分。
在每小题列出的四个选项中,只有一项是符合题目要求的。
云南省自然地理环境复杂,民族文化多元,形成并保留了大量的特色传统村落,云南传统村落的空间分布受自然环境因素影响,更受茶马古道等社会经济因素的影响。
茶马古道源于秦汉时期,沿线地形复杂、气候多变,车辆无法通行,是一条以骡、马为主要交通工具的民间国际商贸通道。
下图示意云南传统村落的空间分布比例,据此完成下面小题。
1. 与传统村落数量呈现负相关性最不明显的因素是()A. 人口密度B. 人均GDPC. 距行政中心D. 路网密度2. 在茶马古道沿线地区形成并保留了数量较多的传统村落,其原因是该区域()①水资源丰富②经济水平高③地形平坦开阔④少数民族分布多A ①② B. ①④ C. ②③ D. ③④【答案】1. C 2. B【解析】【1题详解】由图可知,随着人口密度、人均GDP和路网密度数值增大,传统村落空间分布比例(即数量)总体趋势在减小,说明这三者与传统村落分布存在明显的负相关性,A、B、D错误;距行政中心由近到远,传统村落空间分布比例(即数量)先增后减,两者负相关性最不明显,C正确。
故选C。
【2题详解】茶马古道的商人和骡、马需要饮用水,故其经过地区水源条件好,①正确;云南省少数民族分布多,经济发展缓慢,城镇化进程慢,对传统村落的破坏小,因此在茶马古道沿线地区保留了大量的传统村落,②错误,④正确;茶马古道车辆无法通过,说明地势崎岖,③错误。
综上所述,B正确,故选B。
【点睛】影响人口(聚落)分布的自然因素主要有气候、地形、水源、土壤肥力、矿产资源等,社会经济因素主要有生产力水平、经济发展水平、交通、历史等。
藏北青南高原为青藏高原的主体,大部分地区海拔在4500m³以上,长期受风蚀影响,地表粗化现象明显。
某研究团队为了解藏北青南两原地表物质粗化情况,对表土进行了采样调查(图),发现该区域整体上载土作用较弱,土壤砾石、坝粗砂与粗砂等粗新红含量由东向西逐渐增大。
英语丨广东省2023届高三高考综合能力测试(三)11月联考英语试卷及答案
广东省2023届高三综合能力测试(三)英语试题2022年11月本试卷共8页,满分120分,考试用时120分钟。
注意事项:1.本试卷分选择题和非选择题两部分,答卷前,考生务必将自己的姓名、考生号、试室号、座位号填写在答题卡上,用2B铅笔将答题卡上的相应位置填涂考生号。
因听说另考,试题从第二部分的“阅读理解”开始,试题号从“21”开始。
2.回答选择题时,选出每小题答案后,用2B铅笔在答题卡上对应题目的答案标号涂黑:如需要改动,用橡皮擦干净后,再选涂其他答案,答案写在试卷上无效。
3.非选择题必须用黑色字迹的钢笔或签字笔作答,答案必须写在答题卡各题目指定区域内相应位置上;如需要改动,先划掉原来的答案,然后再写上新答案;不准使用铅笔和涂改液,不按以上要求作答无效。
4.考生必须保证答题卡的整洁,考试结束后,将答题卡交回。
第二部分阅读(共两节,满分50分)第一节(共15小题:每小题2.5分,满分37.5分)阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项。
ASince the very first known lighthouse was built in Egypt,lighthouses have been the focus of many literary works for several decades.So what is it about lighthouses that we are so drawn to? Perhaps it's the symbol of consistent reliability that we so often long for in our lives;or the symbol of hope during overwhelming storms;or of light overcoming the darkness.The list could go on and on.Lighthouses have provided both physical and emotional safety for millions of people for thousands of years.No matter your reason for loving lighthouses,this list lighthouses in Maine will arm you with all of the information you'll need to start your exploration.Burnt Coat Harbor LightLocated on beautiful Swan's Island,Maine,this historic light station is a perfect destination for a day trip from Mt.Desert.Or,stay a few days on Swan's Island!Built in1872,it is only accessibly by boat.The lighthouse is open to the public during specific hours in the summer.The light keeper's house apartment is available for vacation rentals.Whitehead LightIt was Thomas Jefferson's signature that authorized the construction of a small dwelling and a stone lighthouse in1803on Whitehead Island.Ever since,the Whitehead Light Station has provided a beacon to mariners making their way up and down the Maine Coast.Built in1852.Bestviewed by boat.The lighthouse is only open by appointment.Ovemight accommodations on the island are available.Pemaquid Point LightThe Pemaquid Point Lighthouse Park is run and maintained by the Bristol Parks andRecreation Department.The park is open to visitors9a.m.-5p.m.everyday from the Middle of May until mid to late October(closing date varies each year).The tower has limited hours for climbing and is only open weather permitting.Built in1835.Accessible by car.The lighthouse is open on specific days to the public.21.Why do lighthouses attract so many people?A.They are on a must-see listB.They act as symbols of hope.C.They were first built in Egypt.D.They are the topic of literary works.22.What is special about Whitehead Light?A.It offers free accommodations.B.It is open to visitors everyday.C.It needs advanced appointment.D.It was built by Thomas Jefferson.23.What do the three lighthouses have in common?A.They were built in the19th century.B.They are the best travel destinations.C.They are still open all year round.D.They are only accessible by boat.BJosue Rivas didn't know his father well.When he was seven,his mother left Mexico to look for work in the United States,leaving him in the care of his father.But Josue Rivas says his dad didn't know how to be a dad.His father was a photographer who struggled with alcoholism and gave away nearly as many portraits as he sold.Under his care,Josue quickly ended up on the streets and was homeless for four years until his mom came and brought him to America.After that,Josue didn't hear from his father much.But in the last year,during the pandemic,they reconnected.Josue told his dad Arturo Rivas how his abandonment hurt him.The man was defensive at first,but heard him out(耐心听完). And a month before he died of COVID-19this year,he called his son to tell him that he wanted to continue to talk about their relationship.They never got to have those conversations.The last memories Josue has of his father are a photo of him in the hospital.”I didn't get to say goodbye to him,”says Josué,32."I didn't get to say:”Hey,I hope you have a good joumey.""As a kid,Josue hated photography because it reminded him of his dad.But as he grew older,he embraced it,recognizing the loving,if misguided,efforts his father had made to pass on his ant form to him.To work through his grief,Josue found himself retuning to the camera,projecting images of his dad onto the walls of his house and then photographing himself next to them.24.What happened to Josue after his mother left for the United States?A.He had to look for work.B.He became a homeless child.C.He was addicted to alcohol.D.He took good care of his father.25.How did Arturo feel about the relationship with his son at last?A.DefensiveB.Hurt.C.Sorry.D.Close.26.Why didn't Arturo continue the conversations with his son?A.He passed away due to illness.B.He suffered loss of memories of his son.C.He refused to talk about their relationship.D.He started a journey to the United States.27.What can we learn about Josue from the last paragraph?A.He set up a project with his father.B.He thought his father misguided him.C.He hated photography as he grew older.D.He put down the past and forgave his father.CA recent study found that more than a third of all heat deaths worldwide can be attributed to climate change.Parts of the U.S.are feeling the danger now.Heat waves,like the one that has held the Northwest United States in its grip for the past week,are deadly.The human toll(伤亡人数)of the record-breaking temperatures that struck both coasts of the U.S.and Canada in recent weeks is already enormous.At least80people have died in the U.S during the past few days of extreme heat;in British Columbia,the number is in the hundreds.And, as more data trickles in,those numbers are likely to rise even further.A mountain of scientific research has shown that climate change is making heat waves longer, hotter,more likely,and more dangerous.A recent study published in Nature Climate Change adds additional detail by assessing the human cost of that extra heat:In June,a team of some70 researchers reported that for the732sites on6continents they studied,on average,37percent of all heat-related deaths can be blamed directly for climnate change.The study underlines the urgency with which we need to address human-caused climate change,says Ana Vicedo Cabrera,lead author of the study and a climate change epidemiologist atthe University of Bern,in Switzerland."Climate change is not something in the future:It's something in the present,and it is already affecting our health in very dramatic ways,"she says.Extreme,deadly heat events like the one hitting North America are a warming of what will come."We can expect that what we've seen in the past is going to increase exponentially in the future.Our choices for the future are more of this, or a lot more of this.We can still choose between bad and worse,”he says.Either way,it is well past time to start helping people across the country prepare for extreme heat,says University of Washington's Kristie Ebi,a global environmental health exper Some actions can be simple,like making sure people have access to fans,air conditioning,and shade.But the basic message is simple,according to Ebi:We can choose to save lives."Heat kills,but it doesn't have to,"she says.28.What is the main cause of the heat deaths?A.Air pollution.B.Climate change.C.Overpopulation.D.Geographical Location.29.What does the underlined work"enormous"in paragraph2mean?A.Zero.B.Moderate.C.LitleD.Huge30.What can we learn from Ana's words?A.Climate change was an issue in the past.B.Heat waves will definitely come next year.C.Human-caused climate change needs solving.D.The future of human is between good and bad.31.Which saying can best describe Ebi's attitude?A.It's better late than never.B.Rome was not built in a dayC.Where there is a will.there is a way.D.God help those who help themselves.DLack of sleep has been linked to heart disease.Poor mood and loneliness.Being tired could also make us less likely to help one another,researchers report August23in PLOS Biology.The hour of sleep lost in the switch over to Daylight Savings Time(夏令时)every spring appears to reduce people's tendency to help others,the researchers found in an experiment. Specifically,they showed that average donations to one nonprofit organization dropped by around10percent in the workweek after the time switch compared with four weeks before and after the change.In some states that do not observe Daylight Savings Time,donations remained unchanged.With over half of the people living in parts of the developed world reporting that they rarely get enough sleep during the workweek,the finding has implications beyond the week we spring forward,the researchers say."Lack of sleep shapes the social experiences we have and the kinds of societies we live in,"says neuroscientist Ben Simon of the University of Califomia,Berkeley To test the link between sleep loss and generosity,Ben Simon and her team first brought23 young adults into the lab for two nights.The participants slept through one night and stayed awake for another night.In the mornings,participants completed a standardized questionnaire rating their likelihood of helping strangers in various situations.For instance,whether they would give up their seat on a bus to a stranger or offer a ride to a coworker in need.About80percent of participants showed less likelihood of helping others when sleep-deprived than when rested.The researchers then observed participant'brain activity in a functional MRI machine. comparing each participant's neural activity in a rested versus sleep-deprived state.That showed that sleep deprivation reduced activity in a network of brain regions linked to the ability to empathize with others.There's always a possibility that some other variable besides sleep is causing this decline in generosity,says behavioral economist David Dickinson.But this experiment enabled the researchers to draw a convincing line from changes to the brain that appear during sleep loss to real-world behavior.Chronic sleep loss in the modem world is a serious problem,Ben Simon says.But unlike many other large-scale problems-think climate change or political polarization(极化)-this one has a ready solution.”If you think about promoting sleep and letting people get the sleep they need, what an impact that could have on the societies we live in."32.The experiment focused on whether sleep loss can make peopleA.less generousB.lonelyC.moodyD.uncommunicative33.What did Ben Simon think of the finding?A.It provides a ready cure for sleep lossB.It brings about long-term effects on society.C.It is well received among developed world.D.It is not convincing because of some variables.34.What can we learn about the experiment from paragraph4?A.It adopted diverse methods during the test.B.It aimed to improve people's act of generosity.C.It analyzed different kinds of experiment resultD.It involved different participants in the two stages35.What is the passage mainly about?A.Ready solution to solve sleep lossB.More people tending to suffer sleep loss.C.The standard method of testing generosity.D.Sleep loss making people less generous.第二节(共5小题:每小题2.5分,满分12.5分)阅读下面短文,从短文后的选项中选出能填入空白处的最佳选项,有两项为多余选项。
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一、单项选择。
1. “Excuse me, could you tell me the way to the water world?” he asked the policeman_____.
A. Polite
B.politely
C.impolite
D.impolitely
2. He answers my question______.
A. directly
B. direct
C .director D. polite
3. You should say “Ex cuse me” when you want to_____others.
A. forgive
B.trouble
C.see
D.meet
4.—What do you think of the coat?
—lt’s _____beautiful.
A. little
B.kind of
C.kinds of
D. a bit of
5. We all_____how he made such great progress in just one month.
A. believed
B.thought
C.decided
D.wondered
二、任务型阅读。
Asking for information or help is a very common and necessary activity, especially when we visit a foreign country. So knowing how to
ask for information politely is important. In English, “Where a re the restrooms?”and “Could you please tell me where the restrooms are?”are similar requests ----both are correct English, but the first could sound rude. It’s important to use correct language, but sometimes this alon e is not enough we need to learn how to be polite when we make requests.
In English, just like in Chinese, we change the way we speak when talking with different people .The expressions you use might depend on whom you are speaking to or how well you know them. If you say to your teacher“Where is my book?” this will sound rud e. But if you say“Excuse me, Mr West. Do you know where my book is?”, your question will sound much more polite, On the other hand, it might be alright to say “Where is my book?”in some situations, perhaps with people you know well.
And you would not usua lly say,“Peter, lend me your pen.” A very direct order like this can sound rude in English. Usually in English polite questions are longer and include extra language such as“Could you please…?”or” Can I ask…?”It sounds more polite to say,“Peter, could you please lend me your pen?”Sometimes, we might even need to spend some time leading into a ques tion or request. For example, if you stop a stranger in the street, we might first say.” Excuse me. I wonder if you can help me.”or“I’m sorry to trouble you but,”before asking them for help.
It might seem that speaking politely is more difficult than being
direct, and in a way this may be true.However, in order not to offend people, leaming about language etiquette is just as important as learning grammar or vocabulary. And doing this will also help you become better at English, or any other language you wish to speak.
1.It’s important to know how to ________________________in
English when we visit a foreign country,
2.When you talk with different people ,you need to ____________
3.Extra words are used to help ____________________
4.____________________is as important as learning language
structure.
5.How do you say “Don’t smoke here,” politely?
Keys:
一、BABBD
二、 1.ask for information(or help) politely/ make request politely
2.change the way you speak.
3. make language (sound) more polite.
4 .Learning language etiquette.
5. Could you please not smoke here?。