2017年中考模拟百校联考试卷(一)
2017年中考模拟考试试题(卷)理科综合试卷物理试卷和化学试卷..

2017年中考模拟考试试题(卷)理科综合注意事项:1 •本试卷由化学部分和物理部分组成,分第I 卷和第n 卷两部分。
全卷共12页,满分150分,考试时间150分钟。
2 •答卷前,考生务必将自己的姓名、准考证号填写在答题卡相应的位置。
3 •答案全部在答题卡上完成,答在本试卷上无效。
4 •考试结束后,只收回答题卡。
第I 卷选择题(共50分)化学部分可能用到的相对原子质量: H-10-16 S-32、选择题(在每个小题给出的四个选项中,只有一项符合题目要求,请选出并在A •氯原子核外有三个电子层B .氯原子的相对原子质量为 17C .氯原子核内有两个电子D •氯原子在化学变化中容易失去电子形成阳离子1 • 空气成分中,能供给动植物呼吸的是 A .氮气 B .氧气 C .稀有气体2 下列仪器能直接加热的是A •试管B •烧杯C .量筒3 下列物质中, 目前没有计入空气污染指数的是A •一氧化碳B . 二氧化硫C . 二氧化碳答题卡上将该选项涂黑。
每小题 2分,共20分)4•右图是氯元素在元素周期表中的单元格和原子结构示意图。
D • 二氧化碳D .漏斗D •二氧化氮F 列说法正确的是Fe-56Cu-64B C DC .加热高锰酸钾制取氧气D .向硝酸钾溶液中加水稀释6 .下列实验操作正确的是7 •图片中的科学家在化学上的贡献是pH 试纸点燃酒精灯测溶液的pHC D 「A •编制了元素周期表B .发明了联合制碱法C •研究得出物质是由分子和原子构成的 侯德榜D •在定量分析的基础上得出质量守恒定律 8 •右图为探究分子性质的实验,下列说法中正确的是A •浓氨水呈酸性B .两烧杯中的溶液都变红C .氨气分子从 A 烧杯中运动到B 烧杯中D •本实验可探究分子之间有间隔的性质浓氨水滴有酚酞试 我液的蒸馏水选项 物质所选试剂 操作方法A 二氧化碳气体(氯化氢) 氢氧化钠溶液通过装有试剂的洗气瓶,收集 B 硫酸亚铁溶液(硫酸铜) 锌粉 加过量试剂,充分反应,过滤 C 氯化钠溶液(硫酸铜) 氢氧化钡溶液加过量试剂,充分反应,过滤 D二氧化锰固体(氯化钾)水加足量试剂,溶解、过滤、洗涤干燥9 •下列除杂(括号内为杂质)设计,所选试剂和操作方法均正确的是 10 .下列图像能正确反映对应变化关系的是溶液的总A •向氢氧化钠溶液中滴加稀盐酸B .向一定量的硫酸铜溶液中加入铁粉 涪质蜃量分數*固体物质的总物理部分二、选择题(在每小题给出的四个选项中,只有一项符合题目要求,请选出并在答 题卡上将该选项字母涂黑。
2017河南省百校联考试卷

2017河南省百校联考试卷二、单项选择(15分)21.Shi Yigong, famous scientist in China,gave wonderful speech in Zhengzhou on September 1st,2016,which moved us a lot.A.a;theB.an;aC.a;aD.the;the22.It is reported that a lot of adults take lessons online _______further education. A.after B.to C.with D.For23.—The movie the Great Wall was very wonderful,wasn't it?—Yes,but I don’t think liked it .A.somebodyB.anybodyC.nobodyD.everybody24.We can’t the invention because we’re busy with our exa ms.A.believeB.acceptC.promiseD.advise25.With the rapid of our own country,we Chinese people are getting more and more confident.A.movementB.punishmentC.excitementD.development26.Have you ever watched the movie called Moana on November 25,2016?Yes,I have never watched one before.A.funnierB.funniestC.a funnierD.the funniest27.—John is so excited.Did he win the competition?—Yes.He is so lucky and he had one minute to complete the special task,no more and no less.A.especiallyB.probablyC.exactlyD.hardly28.—When we were playing football yesterday,where were you?—I my mother with the housework.A.helpedB.was helpingC.have helpedD.am helping29.—Have you leaned of TV series Life After Life,Blooms Over Blooms?—Yes,I have.It’s the most interesting series I have seen these years.A.whoseB.thatC.whatD.who30.—Mum,can I go out to play basketball?—No.you mustn’t go out until your homework .A.will finishB.is finishedC.finishesD.was finished31.—my daughter is only ten years old,she knows a lot.—What a clever girl!A.BecauseB.WhetherC.ThoughD.So32.—Lucy,I hear you’ve got a large photo collection. I have a look?—Of course.A.MustB.ShouldC.NeedD.Could33.—Tom,where is your sister?I have something to talk with her.—Well,Mom,She her math book in the library.She has to get it back.A.leftB.leavesC.is leavingD.was leaving34.—I’m late because my bike was broken on the way to school.—Can’t you a better excuse?Your bike has broken down three times this week.A.show upB.give upC.take upD.make up35.—No one told me—Oh,I’m sorry I forgot to tell you the meeting would begin at 7 pm.A.when I should go to the meetingB.when and where we shall meetC.how shall we get thereD.what should we take三、完形填空(10分)Carl Joseph was born without a left leg. He was raised by a single mom and grew up in Florida on a farm. He was the fourth of 10 children. Facing so many 36 that most people could only imagine, Carl wasn’t discouraged (气馁的). Sports provided a chance for him to overcome his difficulties.In high school, Carl was always 37 and he played basketball, football and other sports .He was so good at sports that people even 38 his prosthesis (假肢). He especially enjoyed playing football and he was the leader of a football team.He said that sports 39 a chance for him to overcome his difficulties.Carl also did well in his subjects at school.Carl was so good 40 because of his mother. He said, “My mom never felt sorry for me, and I never felt sorry for 41 .My mother often encourages me not to 42 .She is sure that I can do everything well.”The Florida High School Athletic Association invited Carl into the Hall of Fame. Carl’s statement (陈述) included this line, “A one-legged athlete in the Hall of Fame gives 43 to disabled people. Anything is possible 44 you put your mind to it and never give up.”Carl’s classmates and teachers 45 him for his abilities.They called him “the most amazing athlete I’ve ever seen”.36.A.chances B.difficulties C.aims D.results37.A.sad B.nervous C.active D.happy38.A.remembered B. hoped C.left D.forgot39.A.offered B.proved C.afforded D.suggested40.A.hardly B.suddenly C.mainly D.only41.A.myself B.himself C.herself D.themselves42.A.stay up B.give up C.pick up D.think up43.A.luck B.value C.importance D.hope44.A.though B.until C.if D.while45.A.hurt B.admired C.hated D.introduced四、阅读理解(40分)AOnce a king got two nice falcons(猎鹰)from his son. He had never seen such beautiful falcons before. He loved them so much and he ordered the best falconer to train then to fly.After several months, the king came to see how the training was going on. He found that one falcon had already been able to fly high in the sky, while the other was staying on the branch of a tree quietly, just keeping still.The king called all his falcons together and ordered them to try every way they could to make the other falcon fly. But none of them succeeded. One day, while the king was taking a walk in the forest, an idea came to his mind. Maybe someone who knew the natural environment well could solve this problem. He spent for a farmer who lived in the forest into his palace to train it at once.The next morning, the kingsaw the other falcon flying above in the sky freely. “ it is unbelievable !” shouted the king. How could you make it happen”The farmer replied,“It’s very easy. I just cut off the branch where the falcon rested.”It is always the same to human be ings. We all have “two flying wings” in our hearts as well, but we often seem not to notice them and stay where we just for safety and comfort. We won’t realize we can fly so high and freely until the “branch” we are resting on breaks.46.Who did the king get the two nice falcons fromA. One of his falconersB. His son.C. One farmer.D. The king himself.47.What does the underline word “branch” mean?A.鸟巢B.树叶C.树枝D.树根48.Who solved the problem at last in the passage?A.The kingB.A farmerC.The falcon itselfD.The king’s son49.Which one is not true according to the passage?A.The king loved the falcons so much that he wanted them to flyB.None of his falconers could succeed making the other falcon flyC.A few months later,the two falcons were able to fly freelyD.Everyone has”two flying wings”in their hearts like that falcon in the story50.What is the best title of the passage?A.Failure is the mother of succeedB.How to train the falconC.A lazy falconD.Who knows before tryingBWhen we have small cuts in the skin(皮肤), something strange may happen. The cuts are able to heal(痊愈) themselves in a couple of days. How does this happen? Read on, and you will find out the secret.Every living thing on the earth is made up of cells(细胞). Cells grow and make new cells. Most cells are very small and we can't see them with our eyes. Different cells have different uses. Our skin cells are special ones. The cells on the outside of our skin are old dead cells. New skin cells are right under the outside. These are the living skin cells. They work for our bodies. They help protect our bodies and heal cuts.Our bodies make skin cells all the time. As the old cells fall off, new cells grow in the same place. Each person makes about 18 kg of skin cells during his or her life. Outside skin cells fit together closely with no gaps between them. When you cut yourself, you can harm your skin cells. A small cut will not be harmful. Your skin will quickly heal itself by making new skin cells.How do skin cells work? First, the cells near the cut get bigger and move into the gap. Next, these bigger cells meet in the middle. They form a new layer(层) of skin cells. Finally, new cells will grow until the gap disappears. In this way, your skin can grow and get well itself.How amazing the small cells are! Next time you have a cut, don't worry about it. Maybe in a few days, you will be surprised to find it healed.51.The passage may be from a .A.Science website B.Story book C.Sports magazine D.Fashion newspaper52.Living skins cells areof our skin.A.on the surfaceB.over the surfaceC.under the surfaceD.above the surface53:The underlined word “gaps” in the passage means “______” in Chinese.A.方块B.突起C.凹面D.间隙54:When there is a cut,the cells near it______.A.Become bigger B.fall off more C.become smaller D.grow more 55:Which of the following is TRUE ?A.Our skin cells are special ones because only human is made up of cellsB.When gaps between cells are filled,the skin grows well again.C.Each person can make 18 kg of skin cells every day.D.Old and dead cells do work for our bodyC56. You do not have to pay money on Tuesday if you go to.A. Spring RestaurantB. Science MuseumC. Sunshine Shopping CenterD. Huatai Hotel57. What can’t you do at 3 o’clock on Saturday afternoon?A. Go to Spring Restaurant.B. Have coffee in Huatai Hotel.C. Visit Science Museum.D. Shop in Sunshine Shopping Center.58. If you want to drink coffee early on weekdays,you can go to.A. Peace RoadB. East RoadC. West RoadD. Green Road59. Which place is still open after 10:00 p. m. on Thursday?A. Spring Restaurant.B. Science Museum.C. Sunshine Shopping Center.D. Huatai Hotel.60. The text is probably taken from.A. a novelB. a guide bookC. a dictionaryD. a science reportDLi Wen is a normal 15-year-old boy who works hard in school and gets goodgrades. It is hard to believe that he used to be a “problem child”. Li Wen lives in the Sichuan countryside. As a small child, he seldom caused any problems. 61.______ 62.______.His parents moved to the city to look for jobs.He had to live with his grandparents.Li Wen began to cause problems for himself and his family. He was no longer interested in studying. 63.________and he failed his examinations.Finally, his parents made a decision to send him to a boarding school. There were so many rules, and he used to keep breaking them. One day,he told his teacher he wanted to leave the school. 64.______and she advised his parents to talk with their son in person. So his parents took a 24-hour train ride and a five-hour bus ride to go back to their hometown. 65.________.To Li Wen’s surprise, their conversation changed his life. …Now Li Wen has really changed . He has been working hard and is now one of the best students in his class. “It’s very important for parents to be there for their children,”Li Wen says.A. However,things began to changed a few years agoB. His teacher was worried about himC. His parents were proud of himD.They had a long talkE. Sometimes he was absent from classes五、词语运用(10分)Student learn their lessons in class.They sit in the classroom listening to their66 . This is a way of learning. Is this the only way for students to learn something? Of course not. There is 67 way to learn. That is, students can 68 themselves. For example, if you cannot remember something 69 when you are doing your homework, you can look at your book to 70 the answer.How do you teach yourself? The 71 thing you must do is reading. Read something you are 72 in, or you have to read. The second is that youmust ask yourself questions. The question is something you don't understand,or you want to know more about it. You can writer down these questions. A 73student is usually good at asking questions. The third is to answer thequestion 74 thinking hard, by reading the text or other books, and sometimesby asking other people. This is the way of' teaching yourself. And you mustdo this all by yourself. If you 75 doing like this for a long time, you are sureto succeed in your study。
2017山西百校联考数学(1)

2017山西中考百校联考数学试卷(一)第I 卷 选择题(共30分)一.选择题(本大题共10个小题,每小题3分。
在每小题给出的四个选项中,只有一项符合要求,请选出并在答题卡上将该项涂黑) 1.下列四个数中,比-1小的数是 A .-2 B.0 C. 12-D. 132.民间剪纸是中国古老的传统民间艺术。
它历史悠久,风格独特,深受国内外人士所喜爱。
下列剪纸作品中,是轴对称图形的为3.下列运算错误的是A. 326()a a -= B. 22434a a a += C. 325236a a a =gD. 3232a a a ÷= 4.在下面的四个几何体中,它们各自的主视图与左视图可能相同的是5.高速路上赶时间超速而频频发生交通事故,这样给自己和他人的生命带来直接影响。
为了解车速情况,一名执法交警在高速路上随机测试了6辆小轿车的车速情况记录如下:则这6辆车车速的众数和中位数(单位:千米/时)分别是A.100,95B.100,100C.102,100D.100,103 6.“五一”小长假,小颖和小梅两家计划从“北京天安门”“三亚南山”“内蒙大草原”三个景区任意选择一景区游玩,小颖和小梅制作了如下三张质地大小完全相同的卡片,背面朝上洗匀后各自从中抽取一张来确定游玩景区(第一人抽完放回洗匀另一人再抽取),则两人抽到同一景区的概率是A.14 B. 13 C. 12 D. 237.如图,四边形ABCD 为⊙O 的内接四边形,E 是BC 延长线上的一点, 已知∠BOD=100°,则∠DCE 的度数为 A.40° B. 60° C.50° D.80°8.不等式组3112260x x -⎧≤⎪⎨⎪--<⎩的解集在数轴上表示正确的是9.如图所示是一次函数y kx b =+在直角坐标系中的图象,通过观察图象我们就可以得到方程0kx b +=的解为1x =-,这一求解过程主要体现的数学思想是 A.数形结合 B.分类讨论 C.类比 D.公理化10.如图,在菱形ABCD 中,AB=4cm ,∠ADC=120°, 点E 、F 同时由A 、C 两点出发,分别沿AB 、CB 方向向点B 匀速移动(到点B 为止),点E 的速度为1cm/s ,点F 的速度为2cm/s ,经过t 秒△DEF 为等边三角形,则t 的值为 A.1 B.13 C. 12 D. 43第II 卷二.填空题(本大题共5个小题,每小题3分,共15分) 11.分解因式:32___________a ab -=。
2017山西百校联考1理综

单质 ▲
化合物 ▲
(2)干电池内部发生的化学反应为 Zn+2MnO2+2NH4Cl= ZnCl2+Mn2O3+2NH3+X,则 X 的化学式 ▲ ,锌元 素在反应前后的化合价分别为 ▲ ,干电池通过此反应由化学能转化成电能。
(3)从氯化铵、氯化锌和二氧化锰的混合物中回收二氧化锰的操作有 ▲ 、洗涤、
二、选择题(在每小题给出的四个选项中,只有一项符合题目要求,请选出并在答题卡上
将该项涂黑。 每小题 3 分,共 30 分)
11. 下列估测的物理量中,最符合实际情况的是
A. 课桌的高度约为 1.5m
B. 人体感到舒适的温度约为 40℃
A. 电铃
B. 电风扇
C. 风力发电机
D. 门吸
C. 成年人正常的步行速度约为 1m/s D. 一支钢笔的质量约为 0.5kg
线
H—1 C—12 N—14 O—16 Cu—64 Zn—65
折
一、选择题(在每小题给出的四个选项中,只有一项符合题目要求,请选出并在答题卡上
叠
将该选项涂黑。 每小题 2 分,共 20 分)
1. 下列物品中所含的主要材料属于有机合成材料的是
A. 羊毛背心
B. 矿泉水瓶
C. 不锈钢锅
D. 木制课桌
2. 下列实验操作正确的是
实验步骤
实验现象
实验结论
取少量黑色粉末加足量 的水溶解,过滤,向滤渣
A. 称取食盐 B. 稀释浓硫酸 C. 测定溶液的 pH D. 固体药品的取用
3. 下列物质燃烧有火焰的是
A. 硫粉
B. 铁丝
C. 镁带
D. 木炭
4.自然界的水因含有许多杂质而需要净化,下列操作中不属于水的净化方法是
2017百校联考英语试卷(一) (1)

15. What can we learn from the passage?
C. To the city park.
A. The writer thought being a volunteer is great.
B. The writer began volunteer work in his primary school.
题卡上将该项涂黑。
16. —Do you know Donald Trump, the new presiden( t 总统) of the USA?
—Of course. He is also a successful
and has written quite a few popular books.
A. writer
B. singer
C. manager
17. —Will you be a guide in the museum?
—Yes. It will be a
experience. I’m looking forward to it.
A. painful
B. harmful
C. meaningful
英语(一) 第 4 页 (共 12 页)
“My father’s ill,” she said to no one specially. I could see the 33 in her eyes. I
had never seen her like this before. She always meets students with a smile.
6. A. In a clothes store.
B. In a food shop.
2017年山西省百校联考中考物理一模试卷

2017年山西省百校联考中考物理一模试卷一、选择题(共10小题,每小题3分,满分30分)1.(3分)下列估测的物理量中,基本符合实际情况的是()A.课桌的高度为1.5m B.人体感到舒适的温度是40℃C.成人正常的步行速度为1m/s D.一支钢笔的质量为0.5kg2.(3分)关于声现象,下列说法正确的是()A.声音在同种介质中的传播速度一定相同B.我们可根据音色来分辨同学们的讲话声C.道路两旁的隔音墙是在声源处减弱噪声D.超声波可以粉碎结石,说明声音能传递信息3.(3分)如图所示的事例中,通过热传递的方式改变物体内能的是()A.锯木头锯条发热B.划火柴点火C.烧水时水温升高D.铁丝来回弯折温度升高4.(3分)炎炎夏日,考场如火,细心的监考老师轻轻地在教室地面上洒了些水,不一会儿,考生们就有凉爽、舒适的感觉.对于这一现象所蕴含的物理知识,下列说法中正确的是()A.利用了水的蒸发、吸收热量B.利用了水的沸腾、吸收热量C.利用了水的汽化,放出热量D.利用了水的液化,吸收热量5.(3分)关于家庭电路及安全用电,下列说法正确的是()A.低于220V的电压对人体都是安全的B.家庭电路中,控制各个灯具的开关都应安装在相线(火线)上C.只有当人体接触带电体时才可能发生触电事故D.教室里一个开关可以同时控制三只日光灯,这三只日光灯一定是串联6.(3分)下列光现象与日食的形成原因不同的是()A.小孔成像B.水中倒影C.手影游戏D.树下阴影7.(3分)如图所示的几种器件,工作时应用了电磁感应现象的是()A.电铃B.电风扇C.风力发电机 D.门吸8.(3分)如图是高二学生刘星辰演示他们发明的“移动式划船机”.当他曲腿坐在划船机上可滑动木凳上,握住手柄向后用力,后轮就能驱动划船机向后移动,重复这一动作,划船机就能持续“走路”了.用双脚调整脚踏板的方向,就能控制方向轮让划船机转向.下列分析正确的是()A.手柄处刻有凹凸不平的花纹是为了减小摩擦B.操作划船机运动时,划船机运动速度越大,其惯性越大C.静止时划船机对地板的压力和划船机受到的支持力时一对平衡力D.用脚调整踩踏板的方向,能让划船机转向,是由于力可以改变物体的运动状态9.(3分)如图所示,压在杯底的乒乓球,上浮时会弹离水面.下列说法正确的是()A.乒乓球上浮过程中,受到的浮力始终不变B.乒乓球弹离水面后上升,是由于水的浮力作用C.乒乓球上浮过程中,水对杯底的压强始终不变D.乒乓球上浮过程中,水对杯底的压强先不变,后减小10.(3分)灯泡L标有“6V 6W”字样,测得该灯泡的电流随电压变化关系如图甲所示,现把灯泡L接入如图乙所示的电路中,若电源电压恒为10V,电流表的量程为“0﹣0.6A”,电压表的量程为“0﹣15V”,则下列说法正确的是()A.灯泡L能正常发光,且电压表的示数为6VB.当电流表示数为0.4A时,电压表的示数为1VC.灯泡L的电阻值随电压表的示数的增大而增大D.为了保证电路安全,整个电路消耗的最大功率为6W二、填空题11.(1分)他,19 岁进入剑桥大学,靠为学院做杂事的收入支付学费.他的伟大成就﹣﹣光的色散、惯性定律、万有引力定律和微积分学等,为现代科学的发展奠定了基础.当人们赞誉他时,他却说:“那是因为我站在巨人的肩膀上.”为了纪念他对科学发展做出的巨大贡献,人们用他的名字命名了的物理量单位.12.(3分)小明在综合实践课上发现利用羊角锤拔钉子比较省力(如图所示).为什么省力呢?小明思考忽略掉影响问题的次要因素是:,考虑影响问题的主要因素:,构建了模型,根据所学的知识就明白省力的道理.13.(4分)激光是20 世纪的重大发明,被称为“最快的刀”“最准的尺”和“最奇异的光”.激光具有超强的能量密度,可以在直径几百纳米的范围内产生几百万度的高温.工业上,激光刀可切割坚硬和柔软的材料,对切割部位进行局部照射几秒钟便能切割好.激光刀还是外科医生的好帮手,用它做手术没有丝毫机械撞击,而且又快又精准,大大减轻了病人的痛苦,应用于血管瘤、脑部手术等.激光单色性好、方向性强、测距精度高,使得测量人造卫星、月球等目标的距离变成现实.宇航员在月球上安放激光反射器,激光器从地球向月球发射一个激光脉冲信号,月球上的反射器能够将激光脉冲原路返回,激光脉冲从发出到接收时间间隔为2.56s.激光也被作为电影素材,在科幻电影《星球大战》中天行者使用的激光剑能释放出一道长约1m 的纯能量束,战斗时悄无声息.(1)激光刀在切割坚硬或柔软的材料时,材料所发生的物态变化可能是(只需答出一种即可),此过程需要热量.(2)光在真空中的传播速度是3×108m/s,则月球与地球之间的距离为m.(3)如果《星球大战》中的激光剑刺向你,你可以利用做一个盾牌把激光挡回去,那么拿剑者将会搬起石头砸自己的脚.三、作图与简答题14.(2分)如图所示,A、B是平面镜MN前一点光源S射向镜面的两条入射光线,请在图中标出点光源和像点S′的位置,并完成光路图(保留作图痕迹).15.(4分)随着人民生活水平的提高,轿车已逐渐进入百姓家庭,请观察如图所示的一辆小轿车,分析轿车在快速行驶过程中与静止时,哪一种情况下对地面的压强大,为什么?四、实验与探究题.16.(4分)小明用如图所示的装置做“探究凸透镜成像规律”的实验.(1)小明将发光的小灯泡、凸透镜、光屏依次放置在光具座上(如图甲所示),无论怎样移动光屏,都不能在光屏上得到像,请你写出一种可能的原因.(2)解决上述问题后,他把凸透镜位置固定,发光的小灯泡放在40cm刻度线位置时,移动光屏发现光屏上始终能呈现一个面积大小不变的光斑,则该透镜的焦距为cm.(3)小明用蜡烛代替小灯泡继续做实验,烛焰在图乙所示位置能在光屏上成一清晰的像,则该像是倒立、(选填“放大”“等大”或“缩小”)的实像.若想使光屏上烛焰的像变得再大一些,在不改变凸透镜位置的情况下,应将蜡烛向(选填“左”或“右”)适当移动一段距离,再调整光屏的位置.17.(6分)某实验小组想知道家里菜籽油的密度,于是他们取了适量的菜籽油,带入实验室,进行测量.(1)将天平放在水平台上,游码拨至标尺处,并调节天平平衡.(2)先用天平称出空烧杯的质量为31g,然后将适量菜籽油倒入烧杯,放在天平左盘上称量,天平平衡后,右盘中的砝码和游码的位置如图甲所示,则烧杯和菜籽油的质量为g.(3)将烧杯中的菜籽油倒入量筒,其示数如图乙所示,菜籽油的体积为mL.(4)根据测量的数据,求得所测菜籽油的密度为g/cm3.(5)有同学联想到家中做汤时,菜籽油漂浮在水面上情景,同学们在小组讨论交流后,认为所测的菜籽油密度值偏大,只需要在上述实验步骤中增加一步操作就能减少误差,你的操作是.18.(7分)在“测量小灯泡电功率”的实验中,小灯泡上标有“2.5V”字样.(1)连接电路时开关应,滑动变阻器的滑片应移至(选填“左”或“右”)端.(2)甲组同学连接好电路后,闭合开关,发现小灯泡不亮,电流表无示数,但电压表有示数,电路故障可能是.(3)乙组同学连接的电路如图甲所示,其中有一根导线接错了,请你在接错的导线上打“×”,再把它改接到正确的位置上.(4)乙组同学正确连接电路后,通过调节滑动变阻器的滑片,当小灯泡正常发光时,电流表示数如图乙所示,小灯泡的额定功率为W,小灯泡正常发光时的电阻为Ω(保留一位小数).19.(4分)磁感应强度B用来描述磁场的强弱,国际单位是特斯拉,符号是T.为了探究电磁铁外轴线上磁感应强度的大小与哪些因素有关,小鹭设计了如图1所示的电路,图甲电源电压为6V,R为磁感应电阻,其阻值随磁感应强度变化的关系图线如图2所示.(1)闭合开关S1和S2,图乙中滑动变阻器的滑片P向右移动,图甲中电流表的示数逐渐减小,说明磁感应电阻R处的磁感应强度B逐渐.(2)闭合开关S1和S2,滑片P不动,沿电磁铁轴线向左移动磁感应电阻R,测出R离电磁铁左端的距离x与对应的电流表示数I,算出R处磁感应强度B的数值如表.请计算x=5cm时,B=T.(3)综合以上实验数据可以得出:电磁铁外轴线上磁感应强度随电磁铁电流的增大而,离电磁铁越远,磁感应强度越.20.(5分)小红在干燥的天气里,用塑料梳子梳头时,发现头发随着梳子飘起.她知道是梳子带了电,但不知道带的是“正电”还是“负电”?请你根据所学的知识选择合适的器材,设计一个实验来验证一下.(1)在该实验中所选择的器材有:;(2)实验的原理及方案:;(3)结论:.五、计算题.21.(5分)近年来,智能机器人进入百姓家,如图所示是质量为4kg的扫地机器人某次工作时的情景,在4s内沿水平直线运动了2m,此过程机器人所提供的牵引力为50N,g取10N/kg.求:(1)若机器人静止充电时和地面的接触面积为2cm2,则它对地面的压强为多少?(2)上述工作过程中牵引力的功率为多少?22.(5分)图甲为雯雯家新买的电煲锅,它有加热和保温两种功能.图乙是其简化电路.当S接a时,电煲锅加热;当S接b时,电煲锅保温.已知:电源电压为220V.R1=55Ω,加热时总功率与保温时总功率的关系为:P加热=5P保温.[c米=4×103J/(kg•℃)]求:饭(1)若电煲锅内装有1kg米饭,从12℃加热到100℃,米饭吸收多少热量?(2)电阻R2的阻值为多少?(3 )若电煲锅的热效率为80%,加热这些米饭需要多长时间?2017年山西省百校联考中考物理一模试卷参考答案与试题解析一、选择题(共10小题,每小题3分,满分30分)1.(3分)下列估测的物理量中,基本符合实际情况的是()A.课桌的高度为1.5m B.人体感到舒适的温度是40℃C.成人正常的步行速度为1m/s D.一支钢笔的质量为0.5kg【解答】解:A、课桌的高度约为中学生身高的一半,约70~80cm,不可能达到1.5m,故A错误;B、人体感到舒适的温度是23~25℃左右,气温达到40℃会非常热,故B错误;C、成人正常的步行速度为1m/s~1.2m/s,故C正确;D、一支钢笔的质量为15g=0.15kg,达不到0.5kg,故D错误.故选C.2.(3分)关于声现象,下列说法正确的是()A.声音在同种介质中的传播速度一定相同B.我们可根据音色来分辨同学们的讲话声C.道路两旁的隔音墙是在声源处减弱噪声D.超声波可以粉碎结石,说明声音能传递信息【解答】解:A、声音传播的速度与介质的种类和温度有关,同种介质中温度不同时,声音的传播速度不同,故A错误;B、音色反映了声音的品质和特色,不同发声体的材料、结构不同,发出声音的音色也就不同,不同的人由于声带不同,发出的声音的音色也是不同的,所以我们可根据音色来分辨同学们的讲话声,故B正确;C、道路两旁的隔音墙是在传播过程中减弱噪声,故C错误;D、超声波可以粉碎人体内的结石,说明声音能传递能量,故D错误.故选:B.3.(3分)如图所示的事例中,通过热传递的方式改变物体内能的是()A.锯木头锯条发热B.划火柴点火C.烧水时水温升高D.铁丝来回弯折温度升高【解答】解:A、锯木头锯条发热是摩擦生热,是利用做功来改变物体内能的,不符合题意;B、划火柴点火,属于擦燃,是摩擦生热,是利用做功来改变物体内能的,不符合题意;C、烧水时水温升高,是水从火吸热,是通过热传递改变了物体的内能,符合题意.D、铁丝来回弯折温度升高,是利用做功来改变物体内能的,不符合题意.故选C.4.(3分)炎炎夏日,考场如火,细心的监考老师轻轻地在教室地面上洒了些水,不一会儿,考生们就有凉爽、舒适的感觉.对于这一现象所蕴含的物理知识,下列说法中正确的是()A.利用了水的蒸发、吸收热量B.利用了水的沸腾、吸收热量C.利用了水的汽化,放出热量D.利用了水的液化,吸收热量【解答】解:夏天在教室内洒一些水会觉得凉快些,这是因为水会发生蒸发,蒸发过程中吸热,导致气温降低,所以感觉凉爽.故选A.5.(3分)关于家庭电路及安全用电,下列说法正确的是()A.低于220V的电压对人体都是安全的B.家庭电路中,控制各个灯具的开关都应安装在相线(火线)上C.只有当人体接触带电体时才可能发生触电事故D.教室里一个开关可以同时控制三只日光灯,这三只日光灯一定是串联【解答】解:A、经验表明,只有不高于36V的电压,对人体才是安全的,故A 错误;B、家庭电路中,控制各个灯具的开关都应安装在相线(火线)上,这样在断开开关时,用电器才不会带电,更安全,故B正确;C、人接触低压带电体时,可能会触电,而靠近高压带电体时,也可能会触电,故C错误;D、教室里一个开关可以同时控制三只日光灯,这三只日光灯都可以在额定电压下工作,一只损坏,不影响其它的灯工作,所以是并联的,故D错误.故选B.6.(3分)下列光现象与日食的形成原因不同的是()A.小孔成像B.水中倒影C.手影游戏D.树下阴影【解答】解:日食是光的直线传播形成的;小孔成像、手影游戏和树下阴影也是光的直线传播形成的;平静的水面相当于平面镜,水中的倒影属于平面镜成像,是由于光的反射形成的.所以,与日食的形成原因不同的是B项.故选B7.(3分)如图所示的几种器件,工作时应用了电磁感应现象的是()A.电铃B.电风扇C.风力发电机 D.门吸【解答】解:A、电铃是利用电流的磁效应来工作的,故A错误;B、电风扇主要部件是电动机,利用通电导体在磁场中受力的原理工作的,故B 错误;C、风力发电机时利用电磁感应现象原理制成的,故C正确;D、门吸是利用磁体能够吸引铁、钴、镍等的性质制成的,故D错误.故选C.8.(3分)如图是高二学生刘星辰演示他们发明的“移动式划船机”.当他曲腿坐在划船机上可滑动木凳上,握住手柄向后用力,后轮就能驱动划船机向后移动,重复这一动作,划船机就能持续“走路”了.用双脚调整脚踏板的方向,就能控制方向轮让划船机转向.下列分析正确的是()A.手柄处刻有凹凸不平的花纹是为了减小摩擦B.操作划船机运动时,划船机运动速度越大,其惯性越大C.静止时划船机对地板的压力和划船机受到的支持力时一对平衡力D.用脚调整踩踏板的方向,能让划船机转向,是由于力可以改变物体的运动状态【解答】解:A、手柄处刻有凹凸不平的花纹是为了在压力一定时,通过增大接触面的粗糙程度来增大摩擦力.故A错误;B、惯性大小只跟物体的质量大小有关,跟物体是否受力、是否运动、运动速度等都没有关系,所以操作划船机运动时,划船机运动速度越大,其惯性不一定越大.故B错误;C、静止时划船机对地板的压力和划船机受到的支持力大小相等、方向相反、作用在两个物体上,作用在同一条直线上,是一对相互作用力.故C错误;D、用脚调整踩踏板的方向,能让划船机转向,是由于力可以改变物体的运动状态.故D正确.故选D.9.(3分)如图所示,压在杯底的乒乓球,上浮时会弹离水面.下列说法正确的是()A.乒乓球上浮过程中,受到的浮力始终不变B.乒乓球弹离水面后上升,是由于水的浮力作用C.乒乓球上浮过程中,水对杯底的压强始终不变D.乒乓球上浮过程中,水对杯底的压强先不变,后减小【解答】解:A、乒乓球在上浮过程中,先是全浸入水中的上升过程,此过程排开水的体积不变,由F浮=ρ水V排g可知受到的浮力不变;然后是露出水面到脱离水面,此过程排开水的体积变小,由F浮=ρ水V排g可知受到的浮力变小;所以乒乓球在上浮过程中,受到的浮力先不变、后变小,故A错;B、乒乓球弹离水面后不再受浮力作用,由于惯性将继续上升,故B错;CD、乒乓球上浮过程中,先是全浸入水中的上升过程,此过程排开水的体积不变,水的深度不变,由p=ρgh可知水对杯底的压强不变;然后是露出水面到脱离水面,此过程排开水的体积变小,水的深度变小,由p=ρgh可知水对杯底的压强变小;所以乒乓球在上浮过程中,水对杯底的压强先不变、后变小,故C错、D 正确.故选D.10.(3分)灯泡L标有“6V 6W”字样,测得该灯泡的电流随电压变化关系如图甲所示,现把灯泡L接入如图乙所示的电路中,若电源电压恒为10V,电流表的量程为“0﹣0.6A”,电压表的量程为“0﹣15V”,则下列说法正确的是()A.灯泡L能正常发光,且电压表的示数为6VB.当电流表示数为0.4A时,电压表的示数为1VC.灯泡L的电阻值随电压表的示数的增大而增大D.为了保证电路安全,整个电路消耗的最大功率为6W【解答】解:A、灯泡正常发光时的电压U L=6V,因为串联电路中总电压等于各分电压之和,所以,灯泡L正常发光时,电压表的示数:U R=U﹣U L=10V﹣6V=4V,故A错误;B、由图象可知,当I=0.4A时,U L=1V,所以U R=U﹣U L=10V﹣1V=9V.故B错误;C、灯泡的电阻随温度的升高而增大,即灯泡两端的电压越大时,实际功率越大,温度越高,电阻越大,因电压表的示数越大时,灯泡两端的电压越小,所以,灯泡的电阻随两端的电压增大而减小.故C错误;D、由图象可知,当灯泡正常发光(U L=6V)时,电路中的电流为1A>0.6A,所以电路中的最大电流为I=0.6A,电路消耗的最大电功率P max=UI max=10V×0.6A=6W.故D正确.故选D.二、填空题11.(1分)他,19 岁进入剑桥大学,靠为学院做杂事的收入支付学费.他的伟大成就﹣﹣光的色散、惯性定律、万有引力定律和微积分学等,为现代科学的发展奠定了基础.当人们赞誉他时,他却说:“那是因为我站在巨人的肩膀上.”为了纪念他对科学发展做出的巨大贡献,人们用他的名字命名了力的物理量单位.【解答】解:牛顿的伟大成就有光的色散、惯性定律、万有引力定律和微积分学等方面,为现代科学的发展奠定了基础,为纪念他,人们用它的名字命名了力的单位.故答案为:力.12.(3分)小明在综合实践课上发现利用羊角锤拔钉子比较省力(如图所示).为什么省力呢?小明思考忽略掉影响问题的次要因素是:羊角锤的质量、粗细等,考虑影响问题的主要因素:支点、施力点、用力方向等,构建了杠杆模型,根据所学的知识就明白省力的道理.【解答】解:由生活经验可知,利用羊角锤拔钉子比较省力;通过思考可知,影响其省力的次要因素有羊角锤的质量、粗细等,影响问题的主要因素有支点的位置、施力点的位置、用力方向等,据此构建了杠杆的模型,可知羊角锤属于省力杠杆.故答案为:羊角锤的质量、粗细等;支点、施力点、用力方向等;杠杆.(前两个空答案合理即可)13.(4分)激光是20 世纪的重大发明,被称为“最快的刀”“最准的尺”和“最奇异的光”.激光具有超强的能量密度,可以在直径几百纳米的范围内产生几百万度的高温.工业上,激光刀可切割坚硬和柔软的材料,对切割部位进行局部照射几秒钟便能切割好.激光刀还是外科医生的好帮手,用它做手术没有丝毫机械撞击,而且又快又精准,大大减轻了病人的痛苦,应用于血管瘤、脑部手术等.激光单色性好、方向性强、测距精度高,使得测量人造卫星、月球等目标的距离变成现实.宇航员在月球上安放激光反射器,激光器从地球向月球发射一个激光脉冲信号,月球上的反射器能够将激光脉冲原路返回,激光脉冲从发出到接收时间间隔为2.56s.激光也被作为电影素材,在科幻电影《星球大战》中天行者使用的激光剑能释放出一道长约1m 的纯能量束,战斗时悄无声息.(1)激光刀在切割坚硬或柔软的材料时,材料所发生的物态变化可能是升华(只需答出一种即可),此过程需要吸收热量.(2)光在真空中的传播速度是3×108m/s,则月球与地球之间的距离为 3.84×108m.(3)如果《星球大战》中的激光剑刺向你,你可以利用平面镜做一个盾牌把激光挡回去,那么拿剑者将会搬起石头砸自己的脚.【解答】解:(1)激光刀可切割坚硬和柔软的材料,对切割部位进行局部照射几秒钟便能切割好是物质由固态直接变成气态的过程,是升华,升华吸热;(2)因为激光脉冲从发出到接收时间间隔为2.56s,故光从地球到月球的时间为:t=×2.56s=1.28s,根据v=得月球与地球之间的距离为:s=vt=3×108m/s×1.28s=3.84×108m;(3)利用光的反射的知识:当激光剑刺向你,你可以利用平面镜把激光挡回去.故答案为:(1)升华;吸收;(2)3.84×108;(3)平面镜.三、作图与简答题14.(2分)如图所示,A、B是平面镜MN前一点光源S射向镜面的两条入射光线,请在图中标出点光源和像点S′的位置,并完成光路图(保留作图痕迹).【解答】解:先将两条入射光线反向延长,找到交点,即为点光源S的位置,与平面镜的交点为入射点,再通过平面镜作出点光源S的对称点S′,连接S′与两入射点的连线并延长,画出两条反射光线,如图所示:.15.(4分)随着人民生活水平的提高,轿车已逐渐进入百姓家庭,请观察如图所示的一辆小轿车,分析轿车在快速行驶过程中与静止时,哪一种情况下对地面的压强大,为什么?【解答】解:轿车静止时,对地面压力等于重力;轿车在快速行驶过程中,车子上方空气的流速大于车子下方空气的流速,因而车子上方气体的压强小于车子下方气体的压强,轿车上下方所受到的压力差形成向上的升力,从而使得轿车对地面的压力小于车的重力.所以轿车在快速行驶过程中对地面的压力比静止时小,而受力面积相同,由p=可知小汽车静止时对地面压强大.答:小汽车静止时对地面压强大.四、实验与探究题.16.(4分)小明用如图所示的装置做“探究凸透镜成像规律”的实验.(1)小明将发光的小灯泡、凸透镜、光屏依次放置在光具座上(如图甲所示),无论怎样移动光屏,都不能在光屏上得到像,请你写出一种可能的原因蜡烛放在了一倍焦距以内,成虚像.(2)解决上述问题后,他把凸透镜位置固定,发光的小灯泡放在40cm刻度线位置时,移动光屏发现光屏上始终能呈现一个面积大小不变的光斑,则该透镜的焦距为10cm.(3)小明用蜡烛代替小灯泡继续做实验,烛焰在图乙所示位置能在光屏上成一清晰的像,则该像是倒立、放大(选填“放大”“等大”或“缩小”)的实像.若想使光屏上烛焰的像变得再大一些,在不改变凸透镜位置的情况下,应将蜡烛向右(选填“左”或“右”)适当移动一段距离,再调整光屏的位置.【解答】解:(1)无论怎样移动光屏都不能在光屏上得到像,可能是物距小于焦距,成了虚像,不能成在光屏上.也可能是烛焰凸透镜光屏三者中心严重不在同一高度,像无法成在光屏上,或使烛焰在焦点上,不能成像.(2)根据焦点和焦距的定义可知,当蜡烛距离透镜为50cm﹣40cm=10cm时,在右侧无论怎样移动光屏,发现光屏上始终是一个大小不变的圆形光斑,则该透镜的焦距约为10cm.(3)蜡烛与凸透镜的距离为15cm,凸透镜的焦距为10cm,2f>u>f,由凸透镜成像规律可知,成倒立、放大的实像.凸透镜成实像时,物近像远像变大,因此若想使光屏上烛焰的像变得再大一些,在不改变凸透镜位置的情况下,应将蜡烛向右适当移动一段距离.故答案为:(1)蜡烛放在了一倍焦距以内,成虚像;(2)10;(3)放大;右.17.(6分)某实验小组想知道家里菜籽油的密度,于是他们取了适量的菜籽油,带入实验室,进行测量.(1)将天平放在水平台上,游码拨至标尺零刻度线处,并调节天平平衡.(2)先用天平称出空烧杯的质量为31g,然后将适量菜籽油倒入烧杯,放在天平左盘上称量,天平平衡后,右盘中的砝码和游码的位置如图甲所示,则烧杯和菜籽油的质量为61.8g.(3)将烧杯中的菜籽油倒入量筒,其示数如图乙所示,菜籽油的体积为28mL.。
2017百校联考一语文

准考证号
山西中考模拟百校联考试卷(一)
二、读·思(38 分)
(一)
4 月 23 日是“世界读书日”。 这一天,小羽和小雯来到了图书馆。
语文
3. 小羽从书中读到一句话:“自然是人类精神的神息地,山水诗的精诗便在于人与自然的
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C. 欧阳修,字永叔,号醉翁,又号六一居士。 北宋文学家、史学家,唐宋八大家之一。
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9. 下列句中加点字解释有误的一项是( )
(3 分)
A. 濯清涟而不妖。 行
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C. 忠之属也,可以一战。 行
D. 天与云与山与水,上下一白。 行
录认为有用的句子或章节。 这样做既能积累知识、储存资料,还能使理解加深、记忆牢固。
内容提要法:这种方法一般适用于内容较为艰深或篇幅较大的文章。 对于加深理解和记
忆有很大帮助。 评述法:评述是带有评论性质的概述,不仅要表达文章的内容,还要简要
地写出自己对文章的理解和看法。 写读后感:读后感就是指读了一篇文章或一本书后的
10. 下列翻译有误的一项是( )
2017年中考模拟考试英语试题

2017年中考模拟考试英语试题第Ⅰ卷(选择题共100分)注意事项:1—65小题必须使用2B铅笔将答案标号填涂在机读卡上对应题目标号的位置上。
如需改动,用橡皮擦干净后,再选涂其他答案标号。
其它答案填写在答题卷上。
第一部分听力(共两节满分30分)做题时,可将答案划在试卷上。
录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节:(共5小题;每小题1.5分,满分7.5分)听下面5段小对话,每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在答题卡上的相应位置。
每段对话读一遍。
( )1. Where does Cindy work?A. B. C.( )2. What novel is Helen reading?A. B. C.( )3. What does Bob want to be when he grows up?A. B. C.( )4. Which chore is the last one Kate will do?A. B. C.( )5. What isn’t allowed?A. B. C.第二节:(共15小题;每小题1.5分,满分22.5分)听下面几段材料,每段材料后有一个或几个小题,从题中所给的A、B、C三个选项中选出最佳选项。
每段材料读两遍。
( )6. What will the woman buy?A. A pair of blue pants.B. A pink shirt.C. A white shirt.( )7. What are the two speakers talking about?A. The man’s work.B. The man’s study.C. The man’s health.( )8. What is Ms. Brown like?A. Humorous and patient.B. Patient and helpful.C. Strict but helpful.( )9. What time is it?A. It is 7:00.B. It is 8:00.C. It is 9:00.( )10. Who won the first prize in the English speech competition?A. Rose and John.B. John and Mike.C. Rose and Mike.听下面一段材料,回答11-12题( )11. When did the show end?A. At 1 a.m.B. At 2 a.m.C. At 4 a.m.( )12. Why doesn’t the man like the show?A. Too many ads are between the show.B. The competitors perform badly.C. The judges argue a lot.听下面一段材料,回答13-15题( )13. What flavor of dishes would the man like to try today?A. Hot.B. Light.C. Sweet.( )14. How many dishes does the man order?A. One.B. Two.C. Three.( )15. What drink does the man want to have?A. Beer.B. Juice.C. Tea.听下面一段材料,回答16-20题( )16. How old was the girl when she won the competition?A. Seven.B. Eight.C. Nine.( )17. What TV program did the girl enter?A. Black Peter.B. Blue Peter.C. Green Peter.( )18. What did the girl design a coin for?A. The 2012 London Olympics.B. The art competition in her school.C. The talent show on the TV program.( )19. How was the girl’s design?A. Fun and beautiful.B. Simple and useful.C. Simple and interesting.( )20. Why was the girl excited?A. Because she could take part in the Olympics.B. Because she got much pocket money.C. Because her picture turned into a coin.第二部分:基础知识运用(共两节,满分25分)第一节:单项填空(共10小题;每小题1分,满分10分)从A、B、C三个选项中选出最佳选项。