2018年北京市高级中等学校招生考试

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2018年北京市中考真题英语试题(答案+解析)

2018年北京市中考真题英语试题(答案+解析)

2018年北京市高级中等学校招生考试英语试卷知识运用(共14分)一、单项填空(共6分,每小题0. 5分)从下面各题所给的A、B、C、D个选项中,选择可以填入空白处的最佳选项。

1. My brother and I like football. play it together once a week.A. IB. TheyC.WeD.You【答案】C【解析】句意:我哥哥和我喜欢足球,我们每周一起玩一次。

本题考查人称代词。

A. 我;B. 他们;C. 我们;D. 你们。

结合语境“我哥哥和我喜欢足球,______每周一起玩一次。

”。

可知,应该是“我们”。

故选C。

2. Happy birthday, Peter! Here’s a gift you.A. forB. inC. withD. from【答案】A【解析】句意:生日快乐,彼得!这是送给你的礼物。

考查介词用法。

A. 为了;B. 在……里;C. 和……;D. 来自。

结合语境“生日快乐,彼得!这是送给你的礼物。

”。

表示“给……的生日礼物”。

用for。

故选A。

3. — do you usually go to school, Mary?—By bike.A. WhenB. HowC. WhereD.Why【答案】B【解析】句意:——玛丽,你通常怎么上学?——骑自行车。

考查疑问词。

A. 什么时候;B. 怎么;C. 哪里;D. 为什么。

结合语境“玛丽,你通常怎么上学?骑自行车。

”。

可知,对乘坐某种交通工具提问,用疑问词how提问。

故选B。

4. Many people like pandas they are cute.A. thoughB. ifC. whileD. because【答案】D【解析】句意:很多人喜欢熊猫,因为它们很可爱。

考查从属连词的辨析。

选项A意为:虽然;选项B意为:如果;选项C意为:当……时候;选项D意为:因为。

结合句意:很多人喜欢熊猫,因为它们很可爱。

2018年北京中考英语试题及答案

2018年北京中考英语试题及答案

考生须知2018年北京市高级中等学校招生考试英语试卷姓名准考证号考场号座位号1.本试卷共10页,共五道大题,39道小题,满分60分。

考试时间90分钟。

2.在试卷和草稿纸上准确填写姓名、准考证号、考场号和座位号.3.试题答案一律填涂或书写在答题卡上,在试卷上作答无效。

4.在答题卡上,选择题用2B铅笔作答,其他试题用黑色字迹签字笔作答。

5.考试结束,将本试卷、答题卡卡和草稿纸一并交回。

知识运用(共14分)一、单项填空(共6分,每小题0.5分)从下面各题所给的A、B、C、D个选项中,选择可以填入空白处的最佳选项。

1.My brother and I like football。

play it together once a week。

A。

I B. They C。

We D。

You2.Happy birthday,Peter!Here’ s a gift you。

A. for B。

in C。

with D。

from3. --—- do you usually go to school, Mary?----- B y bike.A。

When B。

How C。

WhereD。

Why4.Many people like pandas they are cute。

A。

though B. if C. while D。

because5。

I go now, or I ll miss my train.A. can B。

might C。

must D. could6。

Tony is of the three boys,but he is the tallest。

A. youngB. younger C。

youngest D。

the youngest7。

Bill likes reading. He picture books with his dad every evening.A。

read B。

reads C。

is reading D。

2018年北京市中考英语试卷(含答案解析)

2018年北京市中考英语试卷(含答案解析)

2018年北京市高级中等学校招生考试英语试卷知识运用一、单项填空从下面各题所给的A、B、C、D个选项中,选择可以填入空白处的最佳选项。

1.1.My brother and I like football. play it together once a week.A. IB. TheyC. WeD. You【答案】C【解析】【详解】句意:我哥哥和我喜欢足球,我们每周一起玩一次。

本题考查人称代词。

A. 我;B. 他们;C. 我们;D. 你们。

结合语境“我哥哥和我喜欢足球,______每周一起玩一次。

”。

可知,应该是“我们”。

故选C。

【点睛】人称代词为单数时,按第二人称、第三人称、第一人称排列。

人称代词分单复数,要根据语境,仔细分析,选择正确答案。

2.2.Happy birthday, Peter! Here’s a gift you.A. forB. inC. withD. from【答案】A【解析】【详解】句意:生日快乐,彼得!这是送给你的礼物。

考查介词用法。

A. 为了;B. 在…里;C. 和…;D.来自。

结合语境“生日快乐,彼得!这是送给你的礼物。

”。

表示“给……的生日礼物”。

用for。

故选A。

【点睛】考查介词用法,这个知识点很广泛,有一些固定用法,需要日常积累,结合语境选择正确介词完成习题。

3.3.——do you usually go to school, Mary?——By bike.A. WhenB. HowC. WhereD. Why【答案】B【解析】【详解】句意:--玛丽,你通常怎么上学?--骑自行车。

考查疑问词。

A. 什么时候;B. 怎么;C. 哪里;D. 为什么。

结合语境“玛丽,你通常怎么上学?骑自行车。

”。

可知,对乘坐某种交通工具提问,用疑问词how提问。

故选B。

【点睛】疑问词通常用来构成疑问句,要根据回答的具体内容进行选择,注意一些固定搭配,分清疑问词的用法。

4.4.Many people like pandas they are cute.A. thoughB. ifC. whileD. because【答案】D【解析】【详解】句意:很多人喜欢熊猫,因为它们很可爱。

2018年北京市中考物理试题(含解析)

2018年北京市中考物理试题(含解析)

2018年北京市高级中等学校招生考试物理(满分150分,考试时间120分钟)一、单项选择(下列各小题均有四个选项,其中只有一个选项符合题意。

共30分,每小题2分)1. (2018北京,1,2)下列物品中,通常情况下属于导体的是()A. 塑料安全帽B. 布手套C. 橡胶鞋D. 钢尺【答案】D【解析】通常情况下棉布、干木棒、塑料、橡胶都属于绝缘体,金属、人体、大地、酸碱盐水溶液是导体,故、选D。

【知识点】导体、绝缘体2.(2018北京,2,2)图1所示的光现象中,由于光的反射形成的是()【答案】B【解析】由于光源直线传播形成的有:影子的形成、日月食、小孔成像,由于光的反射形成的有:倒影,平面镜成像,由于光的折射形成的有:凸透镜成像、筷子弯折、海市蜃楼等。

A图可以看出光照射到手上后,穿不过去,于是在手的后面形成阴影,它属于光沿直线传播;鸟巢的灯光经过水面反射之后返回空气中介质种类不变属于光的反射;C图光线穿过水透镜进入人眼也属于从空气进入其它介质后光路发生变化,属于光的折射;D图是光由水中进入空气发生偏折属于光的折射。

【知识点】光是沿直线传播的、光的反射、光的折射3.(2018北京,3,2)下列用电器中,利用电流热效应工作的是()A. 电暖气B. 计算器C. 电视机D. 笔记本电脑【答案】A【解析】本题主要考查能量的转化,电暖气工作时是把电能转化为内能,这属于电流的热效应;而计算器、电视机、笔记本电脑主要是把电能转化为光能,和部分机械能。

当然电流还有磁效应像电磁起重机就是利用电流的磁效应来工作的。

所以本题选A。

【知识点】能量的转化4.(2018北京,4,2)下列实例中,为了增大压强的是()A. 书包带做的较宽B. 图钉帽做得面积较大C. 大型平板车装有很多车轮D. 石磨的磨盘做得很重【答案】D【解析】本题主要考查增大或减小压强的方法,书包带做得宽是通过增大受力面积来减小压强的,故A选项错误;图钉帽做的面积较大,也是通过增大受力面积来减小压强的,故B选项错误;大型平板车装有很多车轮是通过增大受力面积来减小压强的。

2018年北京市中考真题(含答案及解析)

2018年北京市中考真题(含答案及解析)

2018年北京市高级中等学校招生考试英语试卷知识运用(共14分)一、单项填空(共6分,每小题0. 5分)从下面各题所给的A、B、C、D个选项中,选择可以填入空白处的最佳选项。

1. My brother and I like football. play it together once a week.A. IB. TheyC. WeD. You【答案】C【解析】句意:我哥哥和我喜欢足球,我们每周一起玩一次。

本题考查人称代词。

A. 我;B. 他们;C. 我们;D. 你们。

结合语境“我哥哥和我喜欢足球,______每周一起玩一次。

”。

可知,应该是“我们”。

故选C。

2. Happy birthday, Peter! Here’s a gift you.A. forB. inC. withD. from【答案】A【解析】句意:生日快乐,彼得!这是送给你的礼物。

考查介词用法。

A. 为了;B. 在……里;C. 和……;D. 来自。

结合语境“生日快乐,彼得!这是送给你的礼物。

”。

表示“给……的生日礼物”。

用for。

故选A。

3. —do you usually go to school, Mary?—By bike.A. WhenB. HowC. WhereD. Why 【答案】B【解析】句意:——玛丽,你通常怎么上学?——骑自行车。

考查疑问词。

A. 什么时候;B. 怎么;C. 哪里;D. 为什么。

结合语境“玛丽,你通常怎么上学?骑自行车。

”。

可知,对乘坐某种交通工具提问,用疑问词how提问。

故选B。

4. Many people like pandas they are cute.A. thoughB. ifC. whileD. because【答案】D【解析】句意:很多人喜欢熊猫,因为它们很可爱。

考查从属连词的辨析。

选项A意为:虽然;选项B意为:如果;选项C意为:当……时候;选项D意为:因为。

结合句意:很多人喜欢熊猫,因为它们很可爱。

2018年北京市中考数学试题(含答案解析版)

2018年北京市中考数学试题(含答案解析版)

2018年北京市高级中等学校招生考试数学试卷一、选择题(本题共16分,每小题2分)第1-8题均有四个选项,符合题意的选项只有..一个。

1. 下列几何体中,是圆柱的为2. 实数a ,b ,c 在数轴上的对应点的位置如图所示,则正确的结论是(A )>4a (B )>0b c - (C )>0ac (D )>0c a +3. 方程式⎩⎨⎧=-=-14833y x y x 的解为 (A )⎩⎨⎧=-=21y x (B )⎩⎨⎧-==21y x (C )⎩⎨⎧=-=12y x (D )⎩⎨⎧-==12y x 4. 被誉为“中国天眼”的世界上最大的单口径球面射电望远镜FAST 的反射面总面积相当于35个标准足球场的总面积。

已知每个标准足球场的面积为7140m 2,则FAST 的反射面总面积约为(A )231014.7m ⨯ (B )241014.7m ⨯ (C )25105.2m ⨯(D )26105.2m ⨯5. 若正多边形的一个外角是o60,则该正多边形的内角和为(A )o 360 (B )o540 (C )o 720 (D )o900 6. 如果32=-b a ,那么代数式b a a b a b a -⋅⎪⎪⎭⎫ ⎝⎛-+222的值为 (A )3 (B )32(C )33 (D )347. 跳台滑雪是冬季奥运会比赛项目之一,运动员起跳后的飞行路线可以看作是抛物线的一部分,运动员起跳后的竖直高度y (单位:m )与水平距离x (单位:m )近似满足函数关系()02≠=+=a c bx ax y 。

下图记录了某运动员起跳后的x与y 的三组数据,根据上述函数模型和数据,可推断出该运动员起跳后飞行到最高点时,水平距离为(A)10m (B)15m (C)20m (D)22.5m8. 上图是老北京城一些地点的分布示意图。

在图中,分别以正东、正北方向为x轴、y轴的正方向建立平面直角坐标系,有如下四个结论:①当表示天安门的点的坐标为()0,0,表示广安门的点的坐标为()3,6--时,表示左安门的点的坐标为()6,5-;②当表示天安门的点的坐标为()0,0,表示广安门的点的坐标为()6,12--时,表示左安门的点的坐标为()12,10-;③当表示天安门的点的坐标为()1,1,表示广安门的点的坐标为()5,11--时,表示左安门的点的坐标为()11,11-;④当表示天安门的点的坐标为()5.1,5.1,表示广安门的点的坐标为()5.7,5.16--时,表示左安门的点的坐标为(),5.16,5.16-。

2018年北京市中考英语试卷【含答案】

2018年北京市中考英语试卷【含答案】

2018年北京市高级中等学校招生考试英语试卷姓名准考证号考场号座位号知识运用(共14分)一、单项填空(共6分,每小题0.5分)从下面各题所给的A、B、C、D个选项中,选择可以填入空白处的最佳选项。

1. My brother and I like football. play it together once a week.A. IB. TheyC. WeD. You2. Happy birthday, Peter! Here’s a gift you.A. forB. inC. withD. from3. ——do you usually go to school, Mary?——By bike.A. WhenB. HowC. WhereD. Why4. Many people like pandas they are cute.A. thoughB. ifC. whileD. because5. I go now, or I'll miss my train.A. canB. mightC. mustD. could6. Tony is of the three boys, but he is the tallest.A. youngB. youngerC. youngestD. the youngest7. Bill likes reading. He picture books with his dad every evening.A. readB. readsC. is readingD. has read8. ——Paul, what were you doing at nine Last night?——I a movie in the cinema with my friends.A. was watchingB. watchC. have watchedD. will watch9. David a tennis player,He to play tennis when he was six years o1d.A. beginsB. will beginC. beganD. has begun10. ——Lucy, is your uncle a teacher?——Yes,he is.He history for nearly 20 years.A. teachesB. has taughtC. is teachingD. will teach11. A new international airport in the city next year.A. completesB. is completedC. will completeD. will be completed12. ——Alice, could you tell me London?——Sure. Last SundayA.when Mr.Smith leftB. when Mr.Smith wi11 leaveC. when did Mr.Smith leaveD. when will Mr.Smith leave二、完形填空(共8分,每小题1分)阅读下面的短文,掌握其大意,然后从短文后各题所给的的A、B、C、D四个选项中,选择最佳选项。

最新-2018年北京市高级中等学校招生统一考试化学试题及答案[下学期]北师大版 精品

最新-2018年北京市高级中等学校招生统一考试化学试题及答案[下学期]北师大版 精品

2018年北京市高级中等学校招生统一考试化学试卷第Ⅰ卷(机读卷共35分)可能用到的相对原子质量:H—1 C—12 N—14 O—16 Na—23 Cl—35.5 K—39Ca—40 Mn—55一、选择题(共35分,每小题1分。

每小题只有一个选项符合题意)1.日常生活中发生的下列变化,属于化学变化的是A.蜡烛燃烧B.纸张粉碎C.冰雪融化D.酒精挥发2.空气中体积分数约占21%的气体是A. 氮气B. 氧气C. 二氧化碳D. 稀有气体3.下列物质中,属于混合物的是A.铝B.氧化铜C.蔗糖水D.碳酸钾4.用酒精灯给物质加热时,应使用酒精灯火焰的A.焰心部分B.内焰部分C.外焰部分D.任何部分5.决定元素种类的是原子的A.中子数B.质子数C.电子数D.最外层电子数6.下列物质中,含有氧分子的是A.水B.液氧C.氧化汞D.二氧化碳7.下列是一些常用的危险品图标,装运浓硫酸的箱子应贴的图标是8.下列符号中,表示两个氮原子的是A.N2 B.2N2 C. 2N D.2 N9.下列物质在氧气中燃烧,产生大量白烟的是A.木炭B.铁丝C.氢气D.红磷10.下列物质的化学式书写不正确...的是A.氧化镁MgO2B.氧化钠Na2O C.硫酸锌ZnSO4D.氢氧化铜Cu(OH)2 11.氮肥能使作物枝叶茂盛,叶色浓绿。

下列物质中能用作氮肥的是A.NH4NO3 B. K2SO4 C.Ca(H2PO4)2 D. NaHCO312.北京市严重缺水,我们要保护好水资源。

下列做法中,可能会造成水污染的是A.生活污水经处理后排放 B. 禁止含磷洗涤剂的使用C.合理使用农药和化肥 D. 在水库周边兴建造纸厂13.下列化学反应中,属于化合反应的是A.C + O点燃CO2B.Zn + 2HCl == ZnCl2 + H2↑C.C+ 2CuO 高温2Cu + CO2↑D.CaCO高温CaO + CO2↑14.为了减少大气污染,北京市积极推广使用清洁燃料——压缩天然气(CNG)。

2018北京市中考语文试题[附含答案解析]

2018北京市中考语文试题[附含答案解析]

2018年北京市高级中等学校招生考试语文试卷姓名准考证号考场号座位号考生须知1.本试卷共12页,共五道大题,25道小题,满分100分。

考试时间150分钟。

2.在试卷和草稿纸上准确填写姓名、准考证号、考场号和座位号。

3.试题答案一律填涂或书写在答题卡上,在试卷上作答无效。

4.在答题卡上,选择题用2B铅笔作答,其他试题用黑色字迹签字笔作答。

5. 考试结東,将本试卷、答题卡卡和草稿纸一并交回。

一、基础·运用(共13分)学校在圆明园举行“牢记历史,缅怀先烈”主题活动。

请根据要求,完成1-5题。

1.圆明园曾有著名的“四十景”,它们的命名多富有浓厚的传统文化意味。

其中,“上下天光”一景的命名就出自北宋文学家的《岳阳楼记》。

(1分)2.下面是圆明园中“武陵春色遗址”景观说明牌上的文字。

阅读这段文字,完成(1)(2)题。

(共2分)武陵春色,圆明园四十景之一,建自康熙朝后叶,是一处摹.自陶渊明《桃花源记》艺术意境的园中园。

该景园林植物号称山桃万株,东南部以①石为胜,可乘舟沿清溪而上,穿越桃花洞,进入“②”。

该景群四周环山,山外东临巨池,余皆清溪环绕。

园林主体部分南北长220米,东西宽105米,占地2.5万平方米,建筑面积2000平方米。

(1)给加点的字注音和对画线字笔顺作出判断,全都正确的一项是(1分)A. 摹(mú)“巨”字的笔顺是:B.摹(mú)“巨”字的笔顺是:C.摹(mò)“巨”字的笔顺是:D.摹(mò)“巨”字的笔顺是:(2)结合语境,在这段文字横线处填入的汉字和词语,全都正确确的一项是(1分)A.①叠②世外桃源 B.①迭②洞天胜境C.①迭②世外桃源 D.①叠②洞天胜境3.在圆明园大水法遗址前,学生会主席准备给同学们讲述圆明园被英法联军毁灭的历史。

阅读他的发言稿,完成(1)(2)题。

(共4分)第二次鸦片战争期间,英法联军攻入北京,闯进圆明园。

他们被园内琳琅满的珍宝震惊了,争先恐后,大肆抢夺。

2018年北京市中考语文试卷含答案

2018年北京市中考语文试卷含答案

2018年北京高级中等学校招生考试语文试卷学校 _________ 姓名 __________ 准考证号 ____________一、基础-运用 < 共23分)<一)选择。

下面各题均有四个选项,其中只有一个..符合题意,选出答案后在答题卡上用 铅笔把对应的选项字母涂黑涂满。

< 共14分)b5E2RGbCAP1•阅读下面的文字,完成第 <1 ) — <2 )题。

< 共4分)周口店北京人遗址的发掘,可以追溯.到上世纪20年代,为了更好地保护这一举世闻名的古 人类遗址,2018 年7月,周口店北京人遗址博物馆开始迁建,建成后的新馆,面积是旧馆的8倍。

走进博物馆 大厅,首先映入眼帘的是一座巨大的雕塑,“北京人”右手持木棍, 肩上扛着一头猎物,身体直立行走, —①—地还原了“北京人”狩猎归来的场景。

作为国2. 汉字是音形义的结合体。

字谜,就常常借助汉字的间架结构和偏旁来设计。

下列字谜, 不属于按照汉字的间架结构和偏旁来设计的一项是 <2分)DXDiTa9E3dA. 上下平行,左右勾连。

< 打一字) 谜底:互B. 看时圆,写时方,寒时短,热时长。

<打一字)谜底:互C. 一点一横长,口字在中央,大口张着嘴,小口里边藏。

< 打一字)谜底:高D. 有女全姓姚,有手能肩挑,有足蹦蹦 跳,有木桃花俏。

< 打一字)谜底:互 3. 成语是中华民族文化的精华,它的来源十分丰富。

下列各组成语,全都来源于历史故事 的一项是<2分)A. 温故知新杞人忧天毛遂自荐B.门庭若市舍生取义刻舟求剑C.守株待兔完璧归赵幡然开朗D.闻鸡起舞破釜沉舟三顾茅庐4. 岳阳楼是江南三大名楼之一。

范仲淹的《岳阳楼记》使其著称于世。

下面是关于岳阳楼 的一副对联,在横线处依次填入词语,将这幅对联补充完整,正确的一项是 RTCrpUDGiT去老范一千年,后 —先__,几辈能担天下事;揽 ____________ ,南来北往,孤帆曾系画中人。

北京市2018年中考生物试题及答案解析

北京市2018年中考生物试题及答案解析

2018年北京市高级中等学校招生考试生物试卷第一部分选择题1. 大熊猫结构和功能的基本单位是A. 细胞B. 组织C. 器官D. 系统【答案】A【解析】除病毒外,生物体都是由细胞构成的,细胞是生物体结构和功能的基本单位。

细胞是生命活动的基本单位。

所以大熊猫结构和功能的基本单位是细胞。

2. 下列关于草履虫的叙述,不正确的是A. 生活在水中B. 由一个细胞构成C. 不需要从外界获取营养物质D. 能独立完成各项生命活动【答案】C【解析】草履虫是单细胞生物,生活在水中,由一个细胞构成,能独立完成各项生命活动,生活需要从外界获取营养物质。

3. 在观察菜豆植株的不同结构时,选取实验材料不正确的是A. 观察气孔一一叶表皮B. 观察子房——雄蕊C. 观察根毛——根尖D. 观察子叶——种子【答案】B【解析】气孔位于叶的表皮,A正确;子房是雌蕊的组成部分,不是雄蕊的,B错误;根毛位于成熟区,成熟区是根尖的一部分,C正确;子叶是种子种的一部分,D正确。

4. 关于“观察人口腔上皮细胞”实验的叙述,不正确的是A. 在载玻片中央滴加生理盐水B. 碘液染色有利于观察C. 应先用低倍镜进行观察D. 能观察到细胞壁【答案】D【解析】口腔上皮细胞是动物细胞,滴加和人体细胞液浓度相同的生理盐水,目的是维持细胞的原有形状,便于观察,A正确;观察和制作口腔上皮细胞临时装片,为了观察的更清楚,应该用稀碘液染色,B正确;用低倍镜进行观察口腔上皮细胞,C正确;口腔上皮细胞是动物细胞,基本结构包括细胞膜、细胞质和细胞核,没有细胞壁,D 错误。

5. 人的个体发育起点是A. 精子B. 卵细胞C. 受精卵D. 婴儿【答案】C【解析】人体的生长发育是从受精卵形成胚胎并且长成为性成熟个体的过程。

人体的发育包括两个过程,一是从受精卵发育到成熟的胎儿的胚胎发育阶段;二是从婴儿出生发育到个体成熟的胚后发育阶段。

精子和卵细胞不能进行细胞分裂、分化、发育等生命活动。

2018年北京市高级中等学校招生考试【后附极详细的解析、分析、考点、答案解释等】

2018年北京市高级中等学校招生考试【后附极详细的解析、分析、考点、答案解释等】

2018年北京市高级中等学校招生考试【后附:极详细的解析、分析、考点、答案解释等】一、单项选择题1. 下列物品中,通常情况下属于导体的是()A.塑料安全帽B.布手套C.橡胶鞋D.钢尺2. 如图所示的光现象中,由于光的反射形成的是()A.手在屏幕上形成的手影B.鸟巢在水中形成的倒影C.人透过水球形成的像D.勺柄好像在水面处折断3. 下列用电器中,利用电流热效应工作的是()A.电暖气B.计算器C.电视机D.笔记本电脑4. 下列实例中,为了增大压强的是()A.书包带做的较宽B.图钉帽做得面积较大C.大型平板车装有很多车轮D.石磨的磨盘做得很重5. 下列做法中符合安全用电要求的是()A.用电器电线绝缘皮破损了仍继续使用B.在未断开电源的情况下更换灯泡C.在家庭电路中安装空气开关或保险丝D.在高压线附近放风筝6. 下列实例中,为了减小摩擦的是()A.足球守门员戴有防滑手套B.骑自行车刹车时用力捏闸C.运动鞋的底部制有凹凸不平的花纹D.给自行车的车轴加润滑油7. 下列实例中,属于做功改变物体内能的是()A.锯木头时的锯条温度升高B.加入冰块的饮料温度降低C.倒入热牛奶的杯子温度升高D.放入冷水中的热鸡蛋温度降低8. 如图所示的物态变化实例中,由于液化形成的是()A.立春时节冰化成的水B.白露时节草叶上的露珠C.大雪时节落在地上的雪D.冬至时节房檐上的冰挂9. 如图所示的电路中,电阻阻值R1<R2.闭合开关S后,电阻R1、R2两端的电压分别为U1、U2,通过两个电阻的电流分别为I1、I2.下列判断中正确的是()A.I1=I2B.I1>I2C.U1=U2D.U1>U210.小军做凸透镜成像规律的实验时,将焦距为10cm的凸透镜固定在光具座上50cm刻度线处,光屏和点燃的蜡烛分别位于凸透镜两侧,蜡烛放置在35cm刻度线处,如图所示.移动光屏,直到在光屏上呈现烛焰清晰的像.下列说法中正确的()A.光屏上呈现的是烛焰的虚像B.光屏上呈现的是烛焰正立的像C.光屏上呈现的是烛焰放大的像D.该实验现象能说明照相机的成像特点11. 有两个额定电压相同的电热水壶甲和乙,甲的额定功率为1800W,乙的额定功率为1200W.两个电热水壶都正常工作时,下列说法中正确的是()A.甲电热水壶两端的电压较高B.电流通过甲电热水壶做功较快C.通过两个电热水壶的电流相等D.相同时间内,两个电热水壶消耗的电能一样多12. 小海设计了一种测定油箱内油量的模拟装置,如图所示,其中电源两端电压保持不变,R0是定值电阻,R是滑动变阻器的电阻片,滑动变阻器的滑片P跟滑杆的一端连接,滑杆可以绕固定轴O转动,另一端固定着一个浮子.油箱中的油量减少时,浮子随油面下降,带动滑杆使变阻器的滑片P向上移动,从而引起电流表的示数发生变化.下列说法中正确的是()A.电流表示数变小时,表明油箱中的油量减少B.电流表示数变小时,电阻R0两端电压变大C.当油箱中的油量减少时,电流表示数变大D.当油箱中的油量减少时,变阻器R连入电路的电阻变小13. 在如图所示实验中,将小铁球从斜面顶端由静止释放,观察到它在水平桌面上运动的轨迹如图甲中虚线OA所示.在OA方向的甲乙侧旁放一礁铁,再次将小铁球从斜面顶端由静止释放,观察到它在水平桌面上运动的轨迹如图乙中虚线OB所示.由上述实验现象可以得出的结论是()A.小铁球在桌面上继续运动是由于受到向前的作用力B.磁铁对小铁球没有作用力C.力可以改变小铁球的运动方向D.力可以使小铁球发生形变14. 中国科技馆有一个由小车和螺旋桨组成的装置,如图所示.小车在磁体间的相互作用下悬浮于水平平直轨道上.按下控制开关,小车左端的螺旋桨开始转动,小车由静止开始沿轨道向右运动,速度逐渐增大;一段时间后,小车右端的螺旋桨也开始转动,最终在两螺旋桨转速的自动调节下,小车可以停在轨道上.下列说法中正确的是()A.小车静止悬浮在轨道上时,只收受到重力作用B.小车静止悬浮在轨道上时,受到竖直向上的磁力C.小车向右运动的过程中,所受合力一定为零D.小车速度增大的过程中,小车的机械能不变15. 如图所示,盛有水的杯子静止在水平桌面上.杯子重1N,高9cm,底面积为30cm2;杯内水重2N,水深6cm,水的密度为1.0×103kg/m3,g取10N/kg.下列选项中正确的是()A.水对杯底的压强为900PaB.水对杯底的压力为2NC.水杯对桌面的压强为1000PaD.水杯对桌面的压力为2.8N二、多项选择题16、下列能源中,属于可再生能源的是()A.石油B.风能C.煤炭D.太阳能下列说法中正确的是()A.同种电荷相互排斥B.光是电磁波C.电荷的移动形成电流D.负电荷定向移动的方向就是电流的方向17、下列说法正确的是()A.组成物质的分子之间,只存在引力,不存在斥力B.组成物质的大量分子无规则运动的剧烈程度与温度有关C.晶体在熔化过程中吸收热量,温度不变D.沿海地区通常比内陆地区昼夜温差小,原因之一是水的比热容比砂石的比热容大18、如图展示了我国古代劳动人民的智慧成果,对其中所涉及的物理知识,下列说法中正确的是()A.司南利用地磁场对磁体有力的作用来指示南北B.戥子利用杠杆平衡来称量质量C.篆刻刀的刀口做得很锋利,是为了减小压强D.正在发声的编钟一定在振动19、下列说法中正确的是()A.电流周围存在磁场B.磁感线是真实存在的C.电动机能够把电能转化为机械能D.只要导体在磁场中做切割磁感线运动,就会产生感应电流20、小辉想探究电流通过电阻时产生的热量与哪些因素有关.他连接了如图所示的电路进行实验,其中两个完全相同的烧瓶内分别装有质量相等、初温均为25∘C的煤油,阻值为5Ω和10Ω的电阻丝R1、R2.闭合开关一段时间后,记录此时两个温度计的示数。

2018年北京市高级中等学校招生考试物理试卷(含答案)

2018年北京市高级中等学校招生考试物理试卷(含答案)

2018年北京市高级中等学校招生考试物理试卷一、单项选择(下列各小题均有四个选项,其中只有一个选项符合题意。

共30分,每小题2分)1. 下列物品中,通常情况下属于导体的是A. 塑料安全帽B. 布手套C. 橡胶鞋D. 钢尺2. 图1所示的光现象中,由于光的反射形成的是3. 下列用电器中,利用电流热效应工作的是A. 电暖气B. 计算器C. 电视机D. 笔记本电脑4. 下列实例中,为了增大压强的是A. 书包带做的较宽B. 图钉帽做得面积较大C. 大型平板车装有很多车轮D. 石磨的磨盘做得很重5. 下列做法中符合安全用电要求的是A. 用电器电线绝缘皮破损了仍继续使用B. 在未断开电源的情况下更换灯泡C. 在家庭电路中安装空气开关或保险丝D. 在高压线附近放风筝6. 下列实例中,为了减小摩擦的是A. 足球守门员戴有防滑手套B. 骑自行车刹车时用力捏闸C. 运动鞋的底部制有凹凸不平的花纹D. 给自行车的车轴加润滑油7. 下列实例中,属于做功改变物体内能的是A. 锯木头时的锯条温度升高B. 加入冰块的饮料温度降低C. 倒入热牛奶的杯子温度升高D. 放入冷水中的热鸡蛋温度降低8. 图2所示的物态变化实例中,由于液化形成的是9. 图3所示的电路中,电阻阻值R1<R2。

闭合开关S后,电阻R1、R2两端的电压分别为U1、U2,通过两个电阻的电流分别为I1、I2。

下列判断中正确的是A. I1 = I2B. I1 > I2C. U1 = U2D. U1 > U210. 小军做凸透镜成像规律的实验时,将焦距为10cm的凸透镜固定在光具座上50cm刻度线处,光屏和点燃的蜡烛分别位于凸透镜两侧,蜡烛放置在35cm刻度线处,如图4所示。

移动光屏,直到在光屏上呈现烛焰清晰的像。

下列说法中正确的是A. 光屏上呈现的是烛焰的虚像B. 光屏上呈现的是烛焰正立的像C. 光屏上呈现的是烛焰放大的像D. 该实验现象能说明照相机的成像特点11.有两个额定电压相同的电热水壶甲和乙,甲的额定功率为1800W,乙的额定功率为1200W。

2018北京中考英语试题及答案解析

2018北京中考英语试题及答案解析

考生须知2018年北京市高级中等学校招生考试英语试卷姓名准考证号考场号座位号1.本试卷共10页,共五道大题,39道小题,满分60分。

考试时间90分钟.2.在试卷和草稿纸上准确填写姓名、准考证号、考场号和座位号.3.试题答案一律填涂或书写在答题卡上,在试卷上作答无效。

4.在答题卡上,选择题用2B铅笔作答,其他试题用黑色字迹签字笔作答。

5.考试结束,将本试卷、答题卡卡和草稿纸一并交回。

知识运用(共14分)一、单项填空(共6分,每小题0.5分)从下面各题所给的A、B、C、D个选项中,选择可以填入空白处的最佳选项。

1。

My brother and I like football. play it together once a week。

A. I B。

They C。

We D. You2。

Happy birthday, Peter!Here’ s a gift you。

A。

for B。

in C。

with D. from3。

—-—- do you usually go to school, Mary?--- By bike。

A。

When B。

How C。

Where D. Why4.Many people like pandas they are cute。

A。

though B。

if C。

while D. because5。

I go now, or I ll miss my train。

A. can B。

might C. must D。

could6。

Tony is of the three boys, but he is the tallest.A。

young B. younger C。

youngest D. the youngest7。

Bill likes reading。

He picture books with his dad every evening。

A。

read B. reads C. is reading D. has read8。

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2018年北京市高级中等学校招生考试英语试卷姓名准考证号考场号座位号1.本试卷共10页,共五道大题,39道小题,满分60分。

考试时间90分钟。

2.在试卷和草稿纸上准确填写姓名、准考证号、考场号和座位号。

3.试题答案一律填涂或书写在答题卡上,在试卷上作答无效。

4.在答题卡上,选择题用2B铅笔作答,其他试题用黑色字迹签字笔作答。

5. 考试结束,将本试卷、答题卡卡和草稿纸一并交回。

知识运用(共14分)一、单项填空(共6分,每小题0.5分)从下面各题所给的A、B、C、D个选项中,选择可以填入空白处的最佳选项。

1.My brother and I like football. play it together once a week.A. IB. TheyC. WeD. You2.Happy birthday, Peter! Here’ s a gift you.A. forB. inC. withD. from3. ---- do you usually go to school, Mary?--- By bike.A. WhenB. HowC. WhereD. Why4.Many people like pandas they are cute.A. thoughB. ifC. whileD.because5. I go now, or I ll miss my train.A. canB. mightC. mustD. could6.Tony i s of the three boys, but he is the tallest.A. youngB. youngerC. youngestD. the youngest7.Bill likes reading. He picture books with his dad every evening.A. readB. readsC. is readingD. has read8.----Paul, what were you doing at nine Last night?-----I a movie in the cinema with my friends.A. was watchingB. watchC. have watchedD. will watch9. David a tennis player, He to play tennis when he was six years old.A. beginsB.will beginC. beganD. has begun10. ------Lucy, is your uncle a teacher?------Yes, he is. He __ history for nearly 20 years.A. teachesB. has taughtC. is teachingD. will teach11. A new international airport ____ in the city next year.A. completesB. is completedC. will completeD. will be completed12. -------Alice, could you tell me London?-------Sure. Last SundayA. when Mr. Smith leftB. when Mr. Smith will leaveC. when did Mr. Smith leaveD. when will Mr. Smith leave二、完形填空(共8分,每小题1分)阅读下面的短文,掌握其大意,然后从短文后各题所给的的A、B、C、D四个Real Solutions (解决方法)to ProblemsThirty engineers were working as a team in a company. They were young and eager to learn. The management decided to teach them about finding real solutions to problemsOne day, the team was called for a 13 in a hall. They were quite surprised and all reached the hall holding various 14 . As they entered, they found a box placed in the center, full of flatballoonsThe manager asked everyone to pick a balloon and blow it up. Then they were asked to write their names on their respective(各自的)balloons 15 so that the balloons wouldn t blow out. All tried, but not everyone was 16 . Five balloons blew out due to pressure(压力).Those who failed to mark their names on theballoons were 17 out of the game. As a result, 25engineers came to the next level. All the balloonscarrying their names were 18 and then put into aroom, here and there.The engineers were told to pick the balloon with hisor her name on,All the 25 engineers began to search forthe respective balloons in a rush.It was almost 15 minutes but no one was able to 19 the right one. The second level of the game was over.Then came the final level, the engineers were asked to pick any balloon and give it to person named on the balloon. Within a couple of minutes, all balloons 20 the hands of the respective engineers.The manager announced this was the real solution to the problem. Many times in our life, sharing and helping others give us real solutions to problems.13. A. game B. show C. concert D. patry阅读理解(共36分)三、阅读下列短文.根据短文内容,从文后各所给的A、B、C、D四个选项中,选出最佳选项。

(共26分,每小题2分)ARoger: Hi, there ! It was my 15th birthday last Saturday. Some of my friends andAlan, my cousin, came to celebrate it. Everyone brought me a gift, we played games, sang songs and had a big birthday cake. It was really a wonderful day! Did you do anything special last week?Jessica: Yes, My class were on a school field trip last week. First, We went to the University of North Carolina to learn about the history of its basketball team. Many basketball stars were students there. Then we visited a museum. We learned about how the plane was invented and took many pictures there. Sara: Well, I was lucky enough to go to a conference (会议)on charity (慈善)last Wednesday.I was excited to meet a lot of kind people there. One of them was a boy named Richard. He spoke at the conference about the charity work that he had done in the past few years.Martin: It was a different week than usual, Last Thursday, my school band(乐队)went to Atlanta to perform in a competition. I played the violin and we won a prize! On Friday we went to the Georgia Aquarium and got to see different kinds of sea life from over the world. It was really cool!21. When did Roger have his birthday party?A. Last WednesdayB. last thursdayC. Last FridayD. Last Saturday.22. Who went on a school field trip last week?A. Alan.B. JessicaC. SaraD. Richard.23. Martin went to Atlanta .A. speak at a conferenceB. organize a partyC. perform in a competitionD. visit a universityA Beautiful MomentWhen I was in high school. I worked part-time helping Dad sell fruits and vegetables at a matket. One day, as I was preparing the fruits. A little boy came by with his mom and sister. He was about eight years old, and the girl, five or six. They were looking the fruits in front of me. I heard the kids say to their mom(in French),"They re good!" I knew it was French. Because I can speak and understand it.Then I noticed how mom was picking the fruits. At first I thought she was really looking at the fruits because she was facing them. But then I noticed how much she had to feel and smell each one as she picked them out. And often asked her son if it looked okay, but looked way above where his face was. Putting what I saw together, I was sure she was blind.Both of the kids continued to help their mom pick out the fruits . The son made sure the fruits were not obviously bad, and the daughter handed them to her mom. The woman then felt each one and smiled, and the daughte l r would put them into their basket . The kids were smiling while helping their mom pick the fruits out.Their smile and gentle manner moved me in a way that never happened before . It was so beautiful to see such young kids so willingly help. Most kids that age would be picking out candies or toys in a store for themselves, instead of helping their mom pick out fruits as the two kids did.It was great to witness the moment, but not so great because I didn t tell the mom how beautiful her children were in their language .this is what I regret to this day.24. The women and her kids came to the market to buy .A. fruitsB. vegetablesC. candiesD. toys25.According to what he saw, the writer was sure the mother couldnt .A. speakB. seeC. smellD. hear26. The writer was moved because .A. the mother was brave to face her problems.B. the kids were polite and kind to each otherC. the mother was careful in picking out thingsD. the kids were so willing to help their motherCSome primary schoolchildren have been raised in homes with more green space around. They are likely to come with larger volumes of white and grey matterin certain areas of the brain. These differences are associated(关联)with beneficial effects on cognitive function (认知功能).This is the main conclusion of a study led by the Barcelona Institute for Global Health.The study was performed among 253 schoolchildren in Spain . Lifelong exposure(接触)to green space in the living places was recorded—using the information on the children s addresses from birth up through to the time of the study. Brain structure was studied using 3D magnetic resonance imaging (MRI). Working memory and inattentiveness (注意力不集中)were graded with computers.“This is the first study that shows the association between long-term exposure to green space and brain structure.”Says Dr. Payam Dadvand,the leading researcher of the study, “Our findings suggest that exposure to green space early in life could result in beneficial structural changes in the brain.”The findings show that long-term exposure to greenness is positively associated with white and grey matter volumes in several parts of the brain. Some of them are related to higher scores on cognitive tests. Moreover, larger v olumes of white and grey matter in those parts might lead to better working memory and lessinattentiveness.Exposure to nature has been thought to be necessary for brain development in children. Another study of 2,593 children shows that children in school with more green space have a greater increase in working memory and a greater decrease in inattentiveness.Humans are believed to be tied to nature. Playing in greener areas offers children opportunities to search and learn. Accordingly, green space is thought to prompt important exercises in discovery, creativity and risk taking. These exercises in turn positively influence brain development.Dr. Dadvand’s study suggests how such structural changes could bring about the beneficial effects of green spaces on cognitive development, it also adds to the proof that suggests the lasting effects of early life exposure to greenness on our health and the benefits of increasing greenness in cities.Further studies are needed to prove the findings in other populations, settings and climates. And researchers need to examine differences according to the nature and quality of green space.27. The second paragraph is mainly about .A. how the study was performedB. what was recorded in the studyB. how long the study lastedD. who took part in the study28.The word“prompt”in paragraph 6 probably means“”.A. controlB. encourageC. balanceD. change29. What can we learn from the passage?A.Working memory influences white and grey matter in the brain.B.Dr. Dadvand stressed the importance of changing the environment.C.Studies proved the influence of greenness on populations outs of Spain.D.Living in greener neighborhoods benefits children in brain development.DWe often reach a point in our life when we should be ready for change that will help us unlock our self-improvement power. However, there’s always something staring at us right under our nose but we don’t see it. The only time we think of unlocking our self-improvement power is when everything gets worst.When do we realize that we need to change diets? When none of our shirts and jeans would fit us. When do we stop eating candies and chocolates? When all of our teeth have fallen off. When do we realize that we need to stop smoking? When our lungs have gone bad. We see the warning signs and signals when things g et rough and difficult.The only time most of us ever learn about unlocking our self-improvement power is when the whole world is falling apart. We think and feel this way because it is not easy to change, but change becomes more painful when we ignore(忽视)it,Change will happen, like it or hate it. At one point or another, we are all going to finally unlock our self-improvement power not because the world says so. But because we realize it’s for our own good.Happy people don’t just accept change; they embrace (拥抱)it. Unlocking our self-improvement power means unlocking ourselves out of the box of thought that is just the way we are. It is such a poor excuse for people who fear change.Jane always tells everyone that she doesn’t have the courage to be around groups of people. She heard her family tell the same things about her to other people. Over the years, that is what Jane has believed. Every time a great crowd come, she steps back and locks herself up in a room. Jane not only believes in her story, but lives it!Self-improvement may not be everybody’s favorite word, but if we look atthings in a different way, we might have greater chances of enjoying the whole process instead of counting the days until we are fully improved. Three sessions in a week at the gym would result in a healthier life. Reading books every day wouldbuild up knowledge. And only when we are enjoying the whole process of unlocking our self-improvement power will we realize that we? re beginning to take things light and become happy.30.The writer mentions the three questions in Paragraph 2 to show thatA. we learn our lessons when we experience pain.B. we are responsible for the problems we meet.C. life fails us when we get into the wrong way.D. life is a long journey full of ups and downs.31. What is the key to solving Jane’ s problem?A. She needs to remember why she started.B. She has to know how to get on with people.C. She has to realize she is not what she is in her story.D. She needs to understand the importance of confidence.32.The writer probably agrees that.A. the world tells us how to improve ourselves.B. people change when they find it easy to do that.C. welcoming change in life is a drive to become better.D.enjoying the process of self-improvement makes life simpler.33.Which of the following would be the best title for the passage?A. Is it important to take things light?B. Is it necessary to embrace challenges?C. To hold on to the last moment or to give up?D. To free ourselves out of the box or to stay in it?四、阅读短文,根据短文内容回答问题.(共10分,每小题2分)When it comes to the letter grade on your test or homework, you might notice that there is no letter E. Have you ever thought about why that is so?In the A, B, C, D and F grading system, the first four letters a re typically considered passing grades.An F in this system simply stands for “fail” . The word “fail” happens to start with the letter F, which seems to leave out the letter E. The fact”. Someschools have U grade for “unsatisfactory”,or I grade for “incomplete”.Even with all this said, we should also point out that E g rade actually has been used pretty commonly throughout the history of letter grades in the US.The first college in the US to use a letter grading system like the ones we use today is Mount Holyoke College. In 1897,they began to use the following grading scale:A: 95-100%(excellent) B: 85-94%(good) C: 76-84%(fair)D: 75%(barely passed) E: below 75%(failed)We can see the inclusion of E instead of F.Gradually, the letter grading system became more popular throughout the US. However, many schools decided to drop the E grade and go straight to F. There is no evidence (证据)to really support this, but one possible explanation is that teachers were worried that some students and parents might mistake E for “excellent” .Why do we have letter grades? Well, part of the reason is that they made grading simpler during a time of great change for schools. As the 20th century began, growing cities and an increase in immigration led to larger school classrooms. Most teachers at that time thought this new letter grading system was an easy, fair and clear way to grade students.Today, more and more people argue that letter grades don? t fully reflect (反映)student learning。

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