杭州采荷中学教育集团第四次月考试卷
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八年级数学(问卷)一、选择题(本大题有10个小题,每小题3分,共30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.下列图形是轴对称图形的个数是( )A .4个B .3个C .2个D .1个2.在平面直角坐标系中,点所在的象限是( )A .第一象限B .第二象限C .第三象限D .第四象限3.已知四组线段的长分别如下,以各组线段为边,不能组成三角形的是( )A .1,2,3 B .2,3,4 C .3,4,5D .2,2,24.说明命题“对于任意实数a.”是假命题,其中a 可取的值是( )A .B .0C .1D 5.将一副直角三角尺按如图位置摆放在同一平面内,含角的直角三角尺的直角顶点E 在含角的直角三角尺的斜边上,且点F 在的延长线上,已知,,则的度数是( )A .B .C .D .6.如图,在四边形中,,连接,取,连接,下列条件中不一定能判定的是( )A .B .C .D .7.关于x 的一元一次不等式的解都能满足下列哪一个不等式的解( )A . B . C . D .8.有一块长方形菜园,一边利用足够长的墙,另三边用长度为的篱笆围成,设长方形的长为,宽为,则下列函数图象能反映y 与x 关系的是( )()2024,2025P -a =1-30︒45︒AB CB 45A ∠=︒15BFE ∠=︒1∠30︒45︒60︒75︒ABCD AD BC ∥BD BE AD =CE ABD ECB △≌△AB EC =BD CB =ABD ECB ∠=∠ABC DEC ∠=∠36x >49x x -<240x +<320x -+<2x <ABCD 20m BC m x AB m yA .B .C .D .9.对于某个一次函数,小风说该函数图像不经过第二象限,小荷说该函数图像经过,根据两位同学的对话得出的结论,错误的是( )A .B .C .D .10.如图,在直角坐标系中,点A 的坐标为,以线段为边在第四象限内作等边,点C 为x 轴正半轴上一动点,连接,以线段为边在第四象限内作等边,直线交y 轴于点E .下列结论正确的是( )①;②的度数随着点C 位置的变化而改变;③点E 的位置不随着点C 位置的变化而变化,点E 的坐标是;④当点C 的坐标为时,四边形的面积A .①② B .①②③ C .①③④ D .①②③④二、填空题(本大题有6个小题,每小题4分,共24分)11.x 减去y 不大于,用不等式表示为___________.(0)y kx b k =+≠(2,0)0k >0kb <0k b +>12k b =-(3,0)OA ABO △(3)OC >BC BC CBD △DA OBC ABD ≌△△DAC∠(,0)(3)a a >ABDC 2S =5-12.若点关于x 轴的对称点坐标为,则___________.13.已知一次函数随着x 的增大而增大,且图像与y 轴的交点在x 轴下方,则实数m 的取值范围___________.14.一次函数(k 、b 为常数且)与的图象相交于点,则关于x 的方程的解为___________.15.等腰三角形一腰长为5,一边上的高线长为3,则底边长为___________.16.小明和小杰在同一直道的A ,B 两点间作匀速往返走锻炼(忽略掉头等时间).小明从A 地出发,同时小杰从B 地出发,两人第一次相遇时小明曾停下接电话数分钟,图中的折线表示从开始到小杰第一次到达A 地止,两人之间的距离y (米)与行走时间x (分)的函数关系图象.则图中的___________米,___________分.三、解答题(本大题有5个小题,共46分.解答应写出文字说明、证明过程或演算步骤)17.(本小题满分6分)解不等式组并把不等式组的解集表示在数轴上.18.(本小题满分8分)如图,的顶点落在格点上,将向右平移5个单位长度得到.(1)画出;(2)若以A 为原点建立平面直角坐标系.①点B 关于y 轴的对称点的坐标为___________;②若点M 在x 轴上,且,求点M的坐标.(),A m n ()3,5-n =()23,y m x m y =+-+y kx b =-0,0k b ≠≠3y x =(,6)N m -3kx b x -=x =b =d =2133211(1)323x x x x +<+⎧⎪⎨⎛⎫-≤+ ⎪⎪⎝⎭⎩ABC △ABC △DEF △DEF △6MA =19.(本小题满分10分)高州市深镇仙人洞自然生态风景旅游区有“高州九寨沟”之称,山清水秀,吸引着各方游客.“五一”黄金周为吸引更多的游客,管理处在普通票价每人50元的基础上,订出两种团队票优惠方案:甲方案是团队中两人按原票价购买,其余每人优惠25%;乙方案是按团队人数每人均优惠20%.设某团队共x 人,请对x 的取值情况进行分析,说明应选择哪种优惠方案更合算?20.(本小题满分10分)已知一次函数(其中k 、b 为常数且)(1)若一次函数与的图象交于点,求k ,b 的值;(2)若,当时,函数有最大值3,求此时一次函数的表达式.21.(本小题满分12分)如图,中,于点,.图1 备用图(1)求的长;(2)若点D 是射线上的一个动点,作于点E ,连结.①当点D 在线段上时,若是以为腰的等腰三角形,请求出所有符合条件的的长.②设直线交直线于点F ,连结,若,则的长为___________(直接写出结果).1y kx b =+0k ≠21,y bx k y =-2y (2,3)1b k =-22x -≤≤1y kx b =+1y ABC △,BA BC CO AB =⊥,6O AO =9BO =,BC AC OB DE AC ⊥OE OB AOE △AO OD DE BC ,OF CD :1:4OBF OCF S S =△△CD。
2021年杭州市采荷中学高三语文第四次联考试题及参考答案一、现代文阅读(36分)(一)现代文阅读I(9分)阅读下面的文字,完成后面的小题。
聆听井冈山素素井冈山,盈眼皆为绿色。
我就想,如果绿色是井冈山的盖头,那么我们此行的目的,可能就是撩开它梢上的绿,去寻觅它蕊里的红吧。
接下来的日子,果然就是这样。
我们一路走过无数个地方,无论山上、水边,还是村镇之畔,无处不踩着潮湿的绿意。
属于井冈山的红,一部分陈列在各类博物馆或纪念馆里,一部分涂写在小村或古镇的墙壁上。
我尤其注意到了写在井冈山墙壁上的红,它其实是红军当年留下的标语。
数量极其可观,不只是一条两条,而是成百上千条;颜色斑驳而多样,或是红漆,或是白粉,或是黑墨汁;字迹也隐显各异,有的清晰可念,有的模糊难辨,有的影影绰绰。
像一支支从不同方向赶来的队伍,个个张大了嘴巴,以默片的姿态呼喊着,而这一条条光影斑驳的拷贝,就悬浮在露天的墙壁上,眩晕了我的眼睛。
尽管有人告诉我,墙壁上写有标语的村镇,就是红军当年的驻地。
我仍无法想象,大敌当前,战争残酷,在少有的那么一点空隙里,竟有人一笔一画地往墙壁上写出这么多大字。
我去过的地方叫宁冈,叫东固,不论是街巷、祠堂,还是照壁、屋前,一切可以书写的地方,几乎被标语给密集地覆盖了。
也就是说,在那段特殊的日子,出自红军之手的标语,把整个井冈山都染红了。
革命需要鼓动。
红军当年要不断地吸收新战士,井冈山人管这叫“扩红”,当然离不开标语和口号。
革命需要打胜仗。
红军与白军发生过的战斗不胜其数,光是大规模的反围剿就有五次,要打垮围追堵截的白军,也离不开标语和口号。
革命需要农民的支持。
红军战士大多是农民出身,他们正是为了打土豪、分田地而参加了红军,要动员一贫如洗的百姓拥护红军,更是离不开标语和口号。
毛泽东曾说:中国这个国家,离开农民休想干出什么事情来。
这应该是他有感而发的肺腑之言。
摩尔说过的话,应算是一种站在世界高度的评断:在中国,农民在革命中的作用甚至超过了俄国,他们为最终摧毁旧秩序提供了炸药。
2021年杭州市采荷中学高三语文第四次联考试题及答案一、现代文阅读(36分)(一)现代文阅读I(9分)阅读下面的文字,完成下列小题。
材料一:《新型冠状病毒肺美诊疗方案(试行第七版)》日前公布,清肺排毒汤列入中医临床治疗期首选。
该方剂适用于轻型、普通型、重型患者,在危重型患者救治中可结合患者情况合理使用。
要在最短的时间内阻击疲情,关键是抓住核心病机,迅速扭转病情,阻截病气传变渠道,尽快将病邪排出体外。
中医药专家综合分析本次疫情特点,统筹考虑汉代张仲景《伤寒杂病论》经典医籍里的处方,最终决定将麻杏石甘汤、射干麻黄汤、小柴胡汤、五苓散四个方剂21味药有机组合,化裁为新的方剂——清肺排毒汤。
截至2月4日,该方剂给4个省36个城市37所医院的214名确诊患者使用,通过综合观察,治疗新冠肺炎总有效率在90%以上。
尽管本次临床有效性观察不是严格意义上的科研项目,只为迅速救治确诊患者,但临床验证结果与先期处方设计预判完全一致。
更为难得的是,一半以上的患者服用一剂药后症状就得到改善。
国家中医药管理局有关负责人表示,坚持中西医结合,中西药并用,我们一定能够打赢疫情防控阻击战,在抗疫大考中交出合格答卷。
(摘编自王君平《抗疫,中医药添加新力量》,《人民日报》2020年3月12日)材料二:与西医文化相比,中医药文化欠缺了一些所谓的“现代科学性”的逻辑,但起源于中华农耕文明的传统中医药文化,也是在实践中发展起来的中国人独特的宇宙观、自然观、生命观、生活观、健康观和疾病观的体现。
受中国传统优秀文化的影响,中医药文化的核心价值可以用仁、和、精、诚四个字来概括。
然而这些核心价值在对内和对外两个层面上的传播存在不足,导致当下中医药文化在传播与传承中不得不面临种种现实困境。
中医药文化的传播,没有取得很好的文化适应,主要有以下几个方面的原因:一是医学体系背后不同文化价值观的冲突,在西方强调分析、实验、定量的“科学主义”背景下,强调“气”“阴阳”“五行”等脏腑经络学说的中医药不是“辨证施治”的存在,而被认为是一种“伪科学”;二是市场经济方面,当下医学通行的是更符合资本运作规律的西医,传统中医及中医药受到打压;三是中医药文化传播的文化自信不强,即便是2015年屠呦呦院士凭借中医药的研究成就获得了诺贝尔奖,但直到今天,中医药文化依然未得到足够重视,甚至存在自我贬低的现象。
2019-2020学年杭州采荷实验学校高三语文第四次联考试卷及答案解析一、现代文阅读(36分)(一)现代文阅读I(9分)阅读下面的文字,完成下面小题。
将军和士兵聂鑫森胡家村村长胡大尊,做梦都没有想到,县长宋公义,会在这个冬天的早晨,出现在龙虎关!当他和村民走进望楼的休息室时,浓眉大眼的宋公义迎上来打招呼:“大尊,早啊。
”“宋县长,你什么时候来的?”“我昨晚十点叫关,然后和胡四哥一起值班、聊天,累了就在木炭火边打了个盹。
”胡子巴叉、右脚有点跛的胡四,惊得张大了嘴巴,问:“你是宋县长?怠慢了,怠慢了。
你说你是路过这里,借个宿。
”“宋县长,吃过早饭了?”大尊问。
“胡四哥煮的粥,还有两个喷香的烤红薯,好吃。
”“第一批游客,要九点后才会到达。
先喝茶,歇歇憩,过下子请宋县长现场指导。
”宋公义淡淡一笑。
这个瑟缩在湘黔边界的胡家村,几个月来忽然热闹起来了。
就因为在这块地界上,老祖宗留下了一座古城堡,名叫龙虎关,县里拨下了专项扶贫款,把龙虎关修旧如旧,又修好公路,再经宣传,这里立即成了一个旅游热点。
胡家村的村民,祖祖辈辈靠种包谷为活,莽莽苍苍的大山,当然也产茶叶、野果、蔬菜,但交通不便,怎么往外运?换不来现钱啊。
于是,穷,且穷得很冷清。
龙虎关离胡家村不过三里地,左边是青龙山,右边是白虎山,两山之间是商旅的通道。
大概在清康熙年间便在这里设卡筑关,一是为防止边民作乱,二是为保证边贸的税收。
龙虎关的城墙都是粗犷的麻石砌成,城高且厚,城墙上有望楼、烽火台、行道、石级。
城垛与城垛,依次排列,像一个个的“凹”字。
村民万万没想到,这玩意城里人觉得新鲜,更没想到要花钱买票才能看;看了龙虎关,还要买他们地摊上摆着的茶叶、野果、蔬菜、腊肉、腊鱼,说这是百分之百的生态食品。
有古代的龙虎关,就不能没有守关的将军和兵卒。
县里的旅游局,为龙虎关免费捐赠了仿制的古代军装和兵器。
将军的装束最显眼,头盔、甲胄、护心镜、宝剑,威风凛凛。
兵卒军装的前胸后背,都印着一个粗黑的“兵”字,一手拿藤制的盾牌,一手握长矛或是大刀。
浙江省杭州市采荷中学2023-2024学年七年级上学期10月月
考数学试题
学校:___________姓名:___________班级:___________考号:___________
a
二、填空题
11.﹣2的倒数是.
12.64的算术平方根是.
13.(1)按要求用四舍五入法取近似数,263400(精确到万位)(结果用科学记数法表示);
(2)由四舍五入法得到的近似数26.4,它表示大于或等于,而小于的数.
14.如图,是一个有理数运算程序的流程图,请根据这个程序回答问题:当输入的x为4时,求最后输出的结果y是.
15.已知a、b为有理数,a是负数,b是正数,且a与b的和是负数,将三个数a、b-、-按从小到大的顺序排列是.
a
三、解答题。
浙江省杭州市江干区采荷中学2023-2024学年九年级上学期10月月考数学试题学校:___________姓名:___________班级:___________考号:___________一、单选题A.从一个装有2个白球和1个红球的袋子中任取一球,取到红球B.掷一枚正六面体的骰子,出现1点C.抛一枚硬币,出现正面D.任意写一个整数,它能被2整除5.下列命题中是真命题的是()A.三点确定一个圆;C.相等的弦所对的圆心角相等;P6.如图,在平面直角坐标系中,将点(2,3)坐标为()A .(3,2)B 7.如图,四边形PAOB 是扇形合,当P 点在弧MN 上移动时,矩形A .变大B 8.如图,BC 是半圆O 的直径,连接OD ,OE ,如果A ∠A .35︒B 9.对于二次函数2y x =-三、解答题17.如图,已知O是坐标原点,B,C两点的坐标分别为(3,-1),(2,1),将 BOC 绕点O逆时针旋转90度,得到 B1OC1.请画出 B1OC1,并写出B,C两点的对应点B1,C1的坐标.18.如图,AB、AC是⊙O的两条弦,且AB=AC.求证:∠1=∠2.19.已知二次函数24y x x m =-+.(1)若二次函数的图象与x 轴有两个交点,求m 的取值范围.(2)若抛物线在x 轴上截得的线段长为6,求m 的值.20.有A ,B 两个黑布袋,A 布袋中有三个除标号外完全相同的小球,小球上分别标有数字1,2,3,B 布袋中有两个除标号外完全相同的小球,小球上分别标有数字1,2.小明先从A 布袋中随机取出一个小球,用m 表示取出的球上标有的数字,再从B 布袋中随机取出一个小球,用n 表示取出的球上标有的数字.(1)若用(),m n 表示小明取球时m 与n 的对应值,画出树状图并写出(),m n 的所有取值;(2)求点(),m n 落在直线y x =上的概率.21.某地有一座圆弧形拱桥,桥下水面宽度AB 为24m ,拱顶高出水面8m (即8=CD m ),OC AB ⊥,(1)求出该圆弧形拱桥所在圆的半径;(2)现有一艘宽10m ,船舱高出水面7.5m 的货船要经过这里,此货船能顺利通过这座桥吗?22.如图,在一面靠土墙的空地上用长为24米的篱笆,围成中间隔有一道篱笆的长方形花圃,土墙可利用的长度为10米.设花圃的宽AB 为x 米,花圃面积为S 平方米(1)请你求出S 与x 满足的函数关系式,并写出x 的取值范围;(2)当AB 为何值时,花圃面积最大,求出最大面积.。
2020届杭州市采荷中学高三语文第四次联考试题及答案解析一、现代文阅读(36分)(一)现代文阅读I(9分)阅读下文,完成下面小题。
洞悉宇宙,天眼已开(1)2016年9月25日,是举世瞩目的“天眼”——500米口径球面射电望远镜(FAST)竣工的日子。
这只在贵州的群山之中凝视着宇宙的“天眼”,即将开始追寻宇宙最深邃的过去,搜索地外文明的踪迹。
(2)FAST“藏在”贵州省平塘县克度镇大窝凼群山环绕的天然喀斯特洼坑里。
这个巨大的洼坑本身,就是FAST的三大创新之一。
选择把“天眼”安放在这里,不仅节省了巨额的工程开支,环抱的群山还为“天眼”的观测创造了宁静的工作环境。
(3)“天眼”的工作原理其实跟咱们平时常见的锅式天线差不多,通过抛物面把采集到的信号反射到接收信号的馈源舱里,再由相应的信号处理系统对接收到的信号进行处理。
只不过,“天眼”有世界级的超大口径,采集的是来自宇宙的海量信息,而它的大脑,是曙光超级计算机。
(4)这只大眼睛是由4450块反射面板拼在一起组成的。
与普通的锅式天线相比,它的反射面是个球面。
说得再通俗一些,从侧面看,“天眼”要比普通的锅式天线更深一些。
这个巨大的反射面摊开来足有30个足球场那么大。
真真是一口“ a ”的“大锅”。
(5)FAST的第二大创新,是为了让这口大锅能更好更精确地采集来自天空中某个区域的信号。
首先,这口“大锅”被“端起来”架在一个周长1600米的环形圈梁上。
离开地面的“锅底”上的每一块反射面板都被一根根钢索迁拉着,形成一张巨大的索网。
在上万根钢索的牵拉下,这几千块反射板能够在“锅底”形成一个300米直径的瞬时抛物面,汇聚来自某一个方向的电磁波,就好像“天眼”里转动的“瞳孔”,可以随时“望”向令它着迷的远方。
相比之下,美国的阿雷西博望远镜虽然也不小,但是它的眼睛就永远只能盯着一个方向。
(6)只有“瞳孔”可以转动还不够。
光线射入眼睛,需要投射在视网膜上才能被最终处理成眼前的风景。
2020年杭州市采荷中学高三英语第四次联考试题及答案解析第一部分阅读(共两节,满分40分)第一节(共15小题;每小题2分,满分30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AAlex Palmer says he'll never forget his 13th birthday, not because of a gift or a party, but fire. “It made me realize how valuable life is,” said Alex, a seventh grader atMonroeDemonstrationSchoolinTulsa,Oklahoma.On April 18, Alex and many other kids from his school were riding home on a school bus when they suddenly saw smoke coming from the bus’ engine. “It was jaw-dropping,” he told reporters.By the time Alex and some other kids made it out the bus’ back door, the bus was already on fire. And some of their schoolmates were still inside. So he and some of the other older kids took action.“One little kid was slowing everyone down with his big backpack, ” eighth grader Destiny Fain said, “so I got it off and threw it to the side and helped to make sure all the little kids weren’t fighting or pushing. ”As that was going on, sixth grader Marketez Doyle-Smith reportedly helped another classmate who had trouble in breathing because of the smoke. “We saw our friend lying on the ground,” he said, “so we took our shirts off and waved them to get him some air to breathe.”Marketez also reportedly stopped a younger kid trying to get back on the bus to search for something he’d left behind. “We're all a family,” he told reporters. “So I went back to help the little kid.”Finally everyone made it off safely, thanks to Alex, Destiny, Marketez and several other kids. By later that day, they were already being called heroes. “I really don’t see it as being a hero,” Alex said, according to The World. “I see it as the right thing to do—helping others before you help yourself.”1. What happened on Alex’ s way home?A. The school bus was on fire suddenly.B. There was a party for Alex’s birthday.C. He received a gift from his classmate.D. Some classmates quarreled with each other.2. By saying "We're all a family.” Marketez probably meantA. We’re brothers in the same family.B. It’s our duty to help each other.C. We’re classmates in the same class.D. The thing left on the bus is mine.3. According to the last paragraph, Alex thought that heA. was not a brave student.B. had the right to do anything.C. had just done what he should do.D. hated to be called a hero by others.B“They’re harming your brain.” “They’re ruining your eyes.” “They’re turning you into a violent person.” The words said publicly against video games are so common, but are these worries founded on actual science? Countless studies have offered different opinions on whether video games are bad for you. We’ve rounded up the most notable reports and studies below, so you can weigh up the evidence for yourself.In 2013,psychologist(心理学家) Simone Kuhn studied the influences of spending long hours on video games on the brains of young adults and found that several areas became bigger than before. These areas are connected with highercognitive functions(认知功能), memory formation andfinemotor(精细运动) function.Last year, psychologists said that video game players who favour violent games are more likely to be violent when offline. Dr. Mark Appelbaum of the American Psychological Association said that there was a relation between violent video game use and increases in violent behaviour.Dr. Daphne Bavelier is an expert in the field of Brain & Cognitive Sciences. Bavelier presented the audience with a colour-word test, where non-gamers are easily puzzled by the test, and those who spend long periods playing on their computers are more likely to pass the test with flying colours.“Actually, those video game players have many other advantages in terms of attention,” said Bavelier, “and one part of attention which is also improved for the better is our ability to follow the movements of objects.”“So, in a sense, when we think about the influence of video games on the brain, it’s very similar to the influence of wine on the health. There are some very poor uses of wine. There are some very poor uses of video games. But when drunk in reasonable amounts, and at the right age, wine can be very good for health,” said Bavelier.4. What can be learned from Simone Kuhn’s study?A. Video games make you happier.B. Video games make your brain grow.C. Video games play a key role in memory.D. Video games teach you how to learn fast.5. What was Dr. Mark Appelbaum’s attitude towards video games?A. He was against them.B. He was hopeful of them.C.He was in favour of them.D. He was uncertain about them.6. Which of the following may Dr. Daphne Bavelier agree with?A. Video games fix attention problems.B. Video games make kids do well in exams.C. Video games encourage violent behaviour.D. Video games help increase colour knowledge.7. Why are the uses of wine mentioned in the last paragraph?A. To remind people to avoid video games.B. To show the disadvantages of video games.C. To help people learn more about video games.D.To ask people to make good use of video games.CTwo young brothers fromMalden.Massachusettswere in the spotlight Thursday after being named “heroes" by a national organization that recognizes young people doing great things. For the Bennett brothers, the goal of their work is nothing less than helping researchers find a cure for cancer. And their inspiration came from a friend.Thirteen-year-old Hany Bennett and his nine-year-old brother Heath run their business out of their family kitchen. "We're making lip balm(润唇膏),"Harry says. They got the idea two years ago when their friend, Timmy, was diagnosed(诊断)with cancer. brothers wanted to do something. We learned that cancer patients(lips and skin can get really dry because of chemotherapy(化疗),Hany says.A light bulb went off in both of their young heads,and " Bennett Brothers Balm was born. "We make lip balm, which is kind of like our main product/ says Heath. They also make and sell different body balms, all natural, all handmade, while the profits benefit cancer research. "We've raised S 15,000/ Heath says.And with the great optimism of children, they don't just want to help;they wont to win. We want to find a cure. We want to help doctors find a cure, Harry explains, The brothers are also Gelding a team for the Light the Night Walk, to fight cancer."I think it's great to raise money and help people who have cancer," says Heath. Their parents play a big role as well, but it's the boys who provide the most enthusiasm with a message we can all learn from. "If you want to do something... do it," Harry says. "I just feel very glad that we're helping. It feels very good”,adds Heath.Harn and Heath just received the S 10,000 Gloria Barron Prize for Young Heroes. Hwy intend to save some of il for college, invest some of it in their business and give the rest to charity. And their friend Timmy? "He's doing great. He's all better, Harry says.8. What encouraged the Bennett brothers to make lip balm at first?A. Helping a friend with cancer.B. Finding a cure for cancer.C. Raising public awareness of cancer.D. Collecting money for cancer patients.9. What does the underlined part in Paragraph 3 mean?A. The two brothers finished their first product.B. The two brothers came up with an idea.C. The two brothers struggled for a stress-free life.D. The two brothers found an effective way to study.10. What do the Bennett brothers think of their work?A. It is quite competitive.B. It is well worthwhile.C. It fails to satisfy their parents.D. lt helps them make a big profit.11. What does the author intend to tell us with the two brothers' story?A. Great minds think alike.B. Two headsare better than one.C. Young kids can make a big difference.D. The longest journey begins with the first step.DOur house was across the street from a big hospital so we rented our spare upstairs room to outpatients (门诊病人). One evening, there was a knock at the door. I opened it to see a truly sick-looking man.His face looked terrible — it was swollen and red. Yet his voice was pleasant. He told me that he came for treatment and that he’d been hunting for a spare room since noon, but no one would give him one. “I guess it’s my face...”For a moment, I hesitated, but his next words convinced me: “I will sleep in this rocking chair on the porch. My bus leaves early in the morning.”The old man had a huge heart inside his tiny body. He told me that he fished for a living to support his daughter, his daughter’s five children and her disabled husband.He didn’t complain while telling me his story. He was grateful that no pain accompanied his disease, which was seemingly a form of skin cancer.The next morning, he said, “Can I come back and stay next time I need treatment?” I told him he was welcome to come again.On his next trip, as a gift, he brought a big fish and some large oysters (牡蛎). In the years that he stayed with us, there was never a time that he did not bring us gifts like these.My neighbour warned me that I could lose potential renters after the old man left.Maybe we did lose renters once or twice. But if they had known him, perhaps their illnesses would have been easier to bear. I know our family will always be grateful to have known him. From him, we learned what it was to accept the bad without complaint and the good with gratitude.12. Why did the author let the old man stay after hesitation?A. The old man looks terrible and frightening.B. The old man is pitifully undemanding.C. The old man could’t rent room from others.D. The old man talked happily with the author.13. Which of the following shows the old man had a big heart?A.He had a large family to raise.B. He could sleep in a rocking chair.C. He did’t care about his disease.D. He wanted to come back and stay the next time.14. What can we learn about the author from the last two paragraphs?A. He was grateful for the neighbour’s warning.B. He and his neighbor are good friends.C. He truly appreciated the old man.D. He lost potential renters happily.15. What can be a suitable title for the text ?A. Kindness makes the world beautiful.B. Happiness is around thecorner.C. No pains, No gains.D. Live positively.第二节(共5小题;每小题2分,满分10分)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。
2020年杭州市采荷中学高三英语第四次联考试卷及答案第一部分阅读(共两节,满分40分)第一节(共15小题;每小题2分,满分30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AThese wonderful NYC attractions offer pay — what — you — wish days, free entry hours/days and other great stuff for local families.Staten IslandZooThere are plenty of creatures who call NYC home—the Staten Island Zoo is one of them. Once you’ve finished learning about the wildlife in the animal nursery, reptile (爬行动物) side rooms, horse barn and other areas of the attraction, make sure to mark your schedule for fun seasonal happenings, such as the Easter Egg Games and the scary, crazy Halloween Shows.Entry on Wednesdays is by suggested donation; children aged two and under free.Children’s Museum of the ArtsThe Children’s Museum of the Arts welcomes 135,000 little visitors each year through its doors. Once inside, the whole family can enjoy interactive programs, exhibitions (展览) and events that celebrate the changed power of the arts on youngsters and grown-ups alike.Pay-as-you-wish Thursdays, 3-6 p. m.Wave HillEveryone needs a few hours of calm now and then-kids included-and you’d be hard- pressed to find a more peaceful spot within city limits than Wave Hill the broad grounds located above the river, covering 28 acres of public gardens, plus woodlands and grasses to wander. Jump in on nature walks, story times and family art projects often led by local artists and free with general admission.Pay — as — you — wish Tuesdays and Saturdays,9 a. m — noon.New York Hall of ScienceNaturally, kids love it when the New York Hall of Science pleases them with neat exhibits and fun hands-on activities. The museum’s playground is themost attractivetochildren A tube slide (管道滑梯) will give little ones the knowledge on science topics, while the climbing area mirrors a giant spider web. There are also wind pipes, metal drums, sand- boxes and much more. What better way to make the mostout of science?Free entry Sep-Jun on Fridays, 2 — 5 p. m,and Sundays, 10 —11 a. m.1. What can children do in Staten Island Zoo?A. Feed injured animals.B. Join in seasonal activities.C. Build a home for creatures.D. Deal with the donations to the zoo.2. What do Children’s Museum of the Arts and Wave Hill have in common?A. They both have peaceful spots.B. They both are located by a river.C. They both have public gardens.D. They both have activities about arts.3. Which place can be free of charge for all?A. Wave Hill.B.Staten IslandZoo.C. New York Hall of Science.D. Children’s Museum of the Arts.BMy family and I never talked about school as the ticket to a future. I was in theclassroom, but I wasn't there to learn to write, read or even speak. When it was my turn to read, I wanted to hide. I was 13 years old, but I already hated being who I was.I had an English teacher, Mr.Creech, who knew I couldn't read. In one of my first lessons the teacher said that anyone who had a reading age below six had to stand up. I felt so embarrassed. But at the same time, it made me realize that I needed to change the situation. I was determined it wouldn't happen again. Later that day, Mr.Creech encouraged me and promised he would try his best to help me learn to read. From then on, I never gave up practicing reading.Then when I was 41 years old, one day, I planned to fly back toTexasto visit my friends and family. On my way from the airport, I saw Mr.Creech buying himself a drink. I rushed over and reached into my pocket to pay for him. “Do I know you?” he asked. “Yes, sir, you do know me,” I answered excitedly. “My name is Anthony Hamilton. You taught me English.” The look on his face told me that he remembered the boy he'd once encouraged.“I'm so glad I had a chance to see you,” I said. “And Mr.Creech, I have great news to share.” I told him I had learned to read. But that wasn't all. I had become a published author and an active speaker. “The next time youget another Anthony Hamilton in your classroom, please encourage him to read as well,” I added.The experts say what once worried me has a name:dyslexia(诵读困难). But I can tell you it was a lack of desire for education.4. Why did the author want to hide?A. Because he felt sorry for himself.B. Because he hated being laughed at.C. Because he couldn't read at all.D. Because he didn't have a ticket.5. Which of the following could best describe Mr.Creech?A. Considerate and dutiful.B. thoughtful and enthusiastic.C. Emotional and devoted.D. Friendly and wise.6. Why couldn't the author read before meeting Mr.Creech?A. Because his reading age was not long enough.B. Because his parents didn't teach him how to read.C. Because he was afraid of reading before the class.D. Because he didn't have inner driving force to learn to read.7. What can we infer from the passage?A. Mr.Creech taught two students called Anthony Hamilton.B. The author had become a published author and an active speaker.C. Dyslexia was just the reason that made the author unable to read.D. The author was grateful to Mr.Creech.CWhen a fire broke out in my home in the middle of the night, I knew I'd do anything I could to save my family. The medicine that I take for my rheumatoid arthritis causes me to wake up inthe middle of the night with a dry mouth. January 15, 2016, was no different. I, Indiana, US, awoke at 2:30am needing water.I was walking back upstairs from the kitchen when I heard my bulldog , Rock. Whatever Rock was doing down there, it made enough noise for me to go to him. By the time I made it to the bottom of the stairs, he was running up, and he never came up the stairs, no matter what. I think that was his way of telling me, "We've got to go back up. "When I got to the top of the stairs, I turned around and saw a light on, but I didn't remember leaving one on. I walked downstairs again, and that's when I saw fire. I immediately shouted to my wife to wake up and get our three kids. I grabbed a knife and cut out the plastic that covered the window to the porch roof. I then pried open the window and kicked out the screen. I started screaming for help. But help never came. I got everybody out onthe roof and threw a blanket out there so we wouldn't slip off. It was cold, January cold. Then I started screaming for help. But help never came.Now, I'm scared of heights and have physical issues, what with my rheumatoid arthritis, but I couldn't let my family burn up. So I jumped off the roof. I didn't scoot to the edge; I just jumped and got the wind knocked out of me when I landed. I found our ladder, placed it against the house, and climbed back up to the roof. I wrapped my arms around my daughter and carried my nine - month - old with my teeth, by his little sleeper. Then I climbed down the ladder. Once on the ground, I had my little girl hold her brother, and I went back up to the roof to get my other daughter. Then I went back up again and got my wife. I tried to get my dog, but he just disappeared in the black smoke. I never saw him alive again,I'm no hero. I'm just an ordinary person who'd help anybody. This happened to be the time when I helped my own family. I live to protect my family. Just likeRock—he lived to protect us.8. What made the author wake up at 2:30am?A. My dog's barkingB. The medicine's effectC. A burning fireD. A noise downstairs9. How did Rock tell the author the danger downstairs?A. He turned on a light downstairs.B. He ran to the author's room upstairs.C. He kept barking and running up to stairs.D. He made some noise at the bottom of the stairs.10. What did the author do after his family all stood on the roof?A. He placed a blanket to keep warm.B. He started screaming for help.C. He jumped off the roof.D. He broke open the window and kicked out the screen11. Which ofthe following best describe the author?A. Courageous and responsibleB. Caring and selfishC. Loyal and braveD. Strong and considerateDMy sister Alice and I have been trying to get people tostop dropping cigarette(香烟)butts(烟头)for seven years. One day, we were walking in our hometown and saw hundreds of cigarette butts on the ground. They madethe town look so ugly that we decided to start a group to make people dropping butts. We called it “No Butts About It”.At first, we drew pictures with “The Earth is not your ashtray(烟灰缸)”written on them. We put the pictures around our hometown—in parks, by beaches, and along roads. We wanted to make people understand that dropping butts hurts the environment. Most smokers don’t think that dropping butts hurts the Earth. But it does, and all rubbish does!Later, we wrote to companies and asked them for money to help us. We used the money to buy ashtrays to give to smokers. We wanted smokers to carry the ashtrays with them so they didn’t have to drop butts.At the moment, we are trying to get cigarette companies to put an ashtray in each pack of cigarettes. Some companies want to do it. Many people have started to join our group since it began. Today there are 45 other “No Butts About It” groups inAmerica.Now there even groups inEngland,Australia, andIndia! Many newspapers have written about my sister and me over the last seven years. And we have won many prizes for what we do. But we are not interested in prizes. We just want to make the Earth a better and cleaner place for animals, plants and people.One day, it will be.12. What did the writer think about the cigarette butts in the first place?A. They made the town smelly.B. They made the town unhealthy.C. They made the town dirty.D. They made the town poor.13. What does the writer do with the cigarette butts?A. Give ashtrays to the smokers.B. Stop people buying cigarettes.C. Pick up the cigarette butts.D. Win prizes for starting groups.14. From the passage we can know that _____.A. no companies wanted to give money to themB. The writer believes that the Earth will be a better and cleaner placeC. There are only 45”No Butts About It”D. The writer likes to be on newspapers and win prizes215. Which is the best tittle for the passage?A. Save our Town From Cigarette Butts.B. Buy Yourself An Ashtray.C. Cigarette Butts Also Destroy Other Countries.D. No Butts Prize.第二节(共5小题;每小题2分,满分10分)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。
杭州采荷中学教育集团九年级阶段教学质量调研(四)科学试题卷出卷人姜进陈夏莉相对原子质量:H 1 C 12 N14 O 16 Cl 35.5S 32 Na 23 Mg 24 Zn 65 Ba 137 Ag 108一、选择题(每小题4分,共24分,每小题只有一个选项符合题意)1.诺贝尔奖获得者Peyton Rous说道:“肿瘤以一种独特可怕的方式毁坏人体,它虽然是人体自身的血肉,却莫名其妙地变得生长旺盛,猖狂掠夺,无法控制。
”由此可知肿瘤是一种A.人体自身的细胞突变引起的疾病B.病原体侵入人体引起的疾病;C.食物中毒引起的后遗症D.父母遗传引起的一种疾病。
2.下列不属于人体免疫功能的是A.及时清除体内衰老、死亡或损伤的细胞B.细胞分裂、形成新的组织C.抗体使病原菌凝集、中和病原体产生的毒素D.识别、清除体内异常细胞,防止肿瘤形成3.下列叙述正确的是A.液态空气用来制取氮气、氧气,属于分解反应B.呼吸作用和可燃物在空气里燃烧一样都是氧化反应C.用氯酸钾加热制取氧气时,使用二氧化锰作催化剂,可增加氧气的产量D.氮气在空气中的含量约占空气质量的78%4.下列化学方程式书写正确的是A.波尔多液的配制: CuSO4+Ca(OH)2 === Cu(OH)2+CaSO4B.铁屑溶于稀硫酸中: 2Fe+3H2SO4 ==== Fe2(SO4)3+3H2↑点燃C.酒精在空气中燃烧: C2H5OH+3O2 2CO2+3H2OD.铜绿受热分解: Cu2(OH)2CO3 ==== CO2+H2O+CuO5.要使通电螺线管的磁性减弱,可以A.改变电流的方向 B.减小通过螺线管的电流C.在通电螺线管中插入铁芯 D.增加通电螺线管的线圈匝数6.下列说法正确的是A.家庭用的三孔插座的三个孔都接往进户线B.马路上的路灯同时亮,同时熄,它们是串联的C.对人体而言,只要电压不超过36伏就是安全的D.保险丝一般由电阻率大,熔点低的金属合金制成二、选择题(每小题 3 分,共 48分,每小题只有一个选项符合题意)7.下列抢救措施正确的是A.发现有人触电马上用手把他拉开B.对心跳停止者应该立即进行人工呼吸C.蛇咬后伤口处理的方法是应立即在近心端结扎,然后再用清水清洗D.遇到煤气泄漏引起人中毒,应该立即打开排风扇8.四位同学检验血型的结果如下表所示(注:-为不发生凝集,+为发生凝集)这四位同学的血型鉴定依次为A .A 型,B 型,O 型,AB 型 B .O 型,B 型,A 型,AB 型C .O 型,A 型,B 型,AB 型D .AB 型,B 型,A 型,O 型9.下列说法正确的是A .某温室里的全部花卉是一个种群B .地球上最大的生态系统是生物圈C .一个池塘中的全部植物和动物称作生物群落D . 蚯蚓是常见的动物,在生态系统中,它主要充当生产者10.右图是生物圈中碳循环的示意图,下列分析不符合图中表示的信息的是A .图中③表示的生理过程是呼吸作用B .图中甲代表的生物是腐生细菌和真菌等C .图中乙丙丁三者组成的食物链是:乙一→丙一→丁D .能量沿着食物链流动,在丁这一级生物体内积累最多11.下列化学实验基本操作或叙述中,正确的是①把烧杯放在铁圈上直接加热 ②稀释浓硫酸时,应将水沿着器壁慢慢注入浓硫酸里 ③给试管里的液体加热时,液体的体积应该超过试管容积的2/3 ④用完酒精灯,必须用灯帽盖灭,不可用嘴去吹灭 ⑤用高锰酸钾制取氧气结束后,应立刻把装反应物的试管用冷水冲洗干净 ⑥进行细铁丝在氧气中燃烧的实验之前,要预先在集气瓶中装少量的水。
A .①②B .②④C .④⑥D .③⑤12.以下表示的是碳及其化合物的相互转化关系:其中涉及的基本反应类型依次为A .化合、置换、分解、复分解B .置换、复分解、化合、分解C .置换、化合、分解、复分解D .置换、化合、复分解、分解13.亮亮同学用如图所示装置进行实验。
在I 中加入试剂后,塞紧橡皮塞,立即打开止水夹,Ⅱ中有气泡冒出;一段时间后关闭止水夹,Ⅱ中液面上升,溶液由无色变为浑浊。
符合以上实验现象的I 和Ⅱ中14.将8.9g 由Mg 、Zn 两种金属组成的混合物加入到100g 稀H 2SO 4中,恰好完全反应,将反应后的溶液蒸干,得到无水固体28.1g ,则原稀H 2SO 4中溶质的质量分数是A .9.8%B .19.6%C .26.1%D .19.2%15.右图所示的电路,直流小电动机与定值电阻R 2串联接在电压U=15 V 的电源上,已知R 2=10Ω,小电动机两端电压U 1=10 V ,则下列计算正确的是A .通过小电机中线圈的电流为 1 AB .电阻R 2消耗的电功率为 10 WC .小电动机发热的功率为 5 WD .小电动机消耗的电功率为 5 W甲 乙 丙 丁A型标准血清 - + - +B型标准血清 - - + +A B C DI CaCO 3.稀HCl Na 2CO 3.稀H 2SO 4 Zn .稀H 2SO 4 Cu .稀H 2SO 4Ⅱ KNO 3 NaCl BaCl 2 Ba(OH)2 CuO CO 2 高温 Ca(OH)2 H 2CO 3 H 2O C CaCO 3 CO 2 高温16.假如磁体的磁性消失了,以下情景可能发生的是A.从手中脱落的书会停留在空中 B.轮船上的罗盘将失去作用C.电磁起重机可以吸起比原来更多的钢铁D.石块也会浮在水面上17.某同学家中的三盏灯突然全部熄灭,经检查保险丝并未熔断,用测电笔测试室内各处电路时,氖管都发光,由此可知,此同学家中电路的故障的原因是A.进户线短路 B.进户零线断路C.灯泡全部烧坏 D.家中电路某处短路18.由于使用大功率用电器,家中保险丝断了。
但是同样规格的保险丝已用完。
可以代替原保险丝的是A.把面积是原来保险丝二分之一的两根保险丝并在一起使用B.把面积是原来保险丝两倍的两根保险丝并在一起使用C.用铁丝代替保险丝D.用铜丝代替保险丝19.将同种材料且质量相等的两电炉丝R1 R2串联起来,接在如图电路中,若R1较细长,R2较粗短,则先被点燃的火柴是A.电炉丝R1上的火柴B.电炉丝R2上的火柴C.两电炉丝上的火柴同时被点燃D.无法确定20.下列家用电器,不是利用电流热效应工作的是A.电水壶 B.电蚊香器 C.节能灯 D.白炽灯21.某电器厂欲设计一种高、中、低温三档的家用电饭锅,要求低温发热功率为400W,其发热体电阻丝如图所示,A、B、C为三个接线柱,B是电阻丝的中点(电源电压保持不变).则高温档的连接方法是A.A端连正极, B端连负极B.A端连正极,C端连负极C.B端连正极,C端连负极D.B端连正极,A端和C端分别连负极22.关于电动机和发电机下列说法错误的是A.电动机是根据电磁感应现象制成的B.发电机是将机械能转化为电能的机器C.大型发电机中的定子是线圈,转子是磁铁D.直流电动机中换向器作用是改变线圈中的电流方向三、填空题(本大题共44分)23.(8分)⑴流感是由流感病毒引起的,极易在人群中传播,这类疾病具有________、________和______的特点。
得了流感的人要隔离治疗,并且对病人使用过的餐具要消毒,给健康人要接种疫苗。
根据传染病的流行的三个环节,预防措施可归结成三条、、。
(2)当前,吸烟、酗酒等不良行为和不良的饮食习惯已成为严重影响人类身心健康的社会问题。
①导致冠心病发生的原因是。
②我国交通法规规定,机动车驾驶员体内酒精含量不能超过50ml。
因为过量的酒精会影响人的系统,使驾驶员的判断能力下降而易发生交通事故。
24.(2分)初生牛犊自身免疫力低,必须到4周龄以后,才开始具备自身特异性免疫力。
然而,初生牛犊能够通过初乳从母体获得免疫。
所谓初乳,即母牛分娩后5 ~ 7天内所产生的乳,与常乳比较初乳的特点主要是:①免疫球蛋白比常乳高20 ~ 25倍。
②初乳中含有四种蛋白酶抑制素,可保护免疫球蛋白不被消化而直接吸收。
由于牛初乳具有以上普通牛乳所不具有的功效,因而目前市场上出现了大量各种含牛初乳的保健品品牌。
结合以上材料,试回答下列问题:(1)免疫球蛋白在免疫学中又被称为,它们在机体中的作用是与相应的抗原(病原微生物)发生免疫反应,及时清除抗原;(2)初生牛犊通过牛初乳能获得来自母体的天然免疫能力,而长大到1 ~ 2岁龄的小牛则要经过肌肉或皮下注射口蹄疫弱毒苗才可以预防口蹄疫的发生,那么由后一种方式获得的免疫称为免疫。
(“人工自动免疫”还是“人工被动免疫”)25.(9分)(1)《钱江晚报》2007年6月5日刊登了一则消息,题目为《钡盐误当“白粉”,白馒头毒倒四人》。
文中的“钡盐”指的是碳酸钡。
碳酸钡不溶于水,它与胃酸反应会生成Ba2+,于是产生了毒性。
写出该反应的化学方程式:。
这种类型的食物中毒属于(选填“细菌性”或“非细菌性”)食物中毒。
误食钡盐可以用以下四种物质中哪一种来解毒(H2SO4、MgSO4、CuSO4、MgCl2)其原理用化学方程式来表示为:。
(2)目前一种新型加酶洗衣粉,加的酶一般是蛋白质分解酶,能将衣服上发黄的汗迹、奶渍、血迹等污垢中的蛋白质最终分解成。
使用时忌水温过高而不能去污,因为。
26.(5分)在硝酸银和硝酸铜的混合液中,加入一定量的铁粉,充分反应后过滤,有以下几种情况:(1)如在滤液中滴加氯化钠溶液,有白色沉淀生成,则留在滤纸上的物质是。
(2)如在过滤后的滤纸上的固体滴加过量稀盐酸,有可燃性气体产生,则滤纸上的固体物质是;滤液中有哪些阳离子。
(3)若铁粉恰好与硝酸银完全反应,则溶液中存在的溶质是;(4)若溶液中无Cu2+存在,过滤所得的固体中一定含有。
27.(6分)右图所示是小李同学设计的一套研究电磁铁的装置.弹簧测力计下吊着磁铁(磁铁下端是S极),下面是一个带铁芯的螺线管,他进行了以下实验,请你完成下列填空(选填“变大”、“变小”、“不变”):(1)当K从断开到闭合时,弹簧测力计示数; (2)当K闭合达到稳定后,滑片P向右移动时,弹簧测力计示数.(3)要让弹簧秤下的磁铁向反方向运动,除了移动滑动变阻器的滑片,还可以对电路怎样调整。
28.(4分)右上图所示,一根条形磁铁插入线圈时,与之相连的灵敏电流计的指针会发生偏转.这个实验运用的是原理,这一现象中能量的转化过程是。
29.(4分)磁体之间的相互作用是通过__________而发生的。
直流电动机是利用____________________的原理。
30.(6分)右图所示的电路,电源电压保持不变,滑动变阻器R2滑片向右滑动时,电压表的示数________,电阻R1消耗的功率__________,电路消耗的总功率_________。
(填“变大”、“不变”或“变小”)四、实验、简答题(本大题共 35 分)31.(3分)江、河、湖、泊、沼泽、滩涂等湿地被称为“地球之肾”,对改善气候,保持良好的环境,起着很大的作用。