初高中衔接练习六

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(必考题)初中高中化学必修二第六章《化学反应与能量》经典练习题(答案解析)

(必考题)初中高中化学必修二第六章《化学反应与能量》经典练习题(答案解析)

一、选择题1.对于反应A(g)+3B(g)2C(g)+2D(s),下列各数据表示不同条件下的反应速率,其中反应进行得最快的是A.v(A)=0.2mol/(L·s)B.v(B)=0.2mol/(L·s)C.v(C)=0.3mol/(L·s)D.v(D)=0.4mol/(L·s)2.某同学用下图所示装置探究原电池的工作原理,并推出下列结论,正确的是A.Cu质量减少B.Zn用作负极C.电子由Cu并经导线流向Zn D.该装置将电能转换为化学能3.可以将反应Zn+Br2=ZnBr2设计成原电池,下列4个电极反应中,分别表示正极反应和负极反应的是①Br2+2e-=2Br-②2Br--2e-=Br2 ③Zn-2e-=Zn2+④Zn2++2e-=ZnA.②和③B.①和④C.②和④D.①和③4.为比较Fe3+和Cu2+对H2O2分解反应的催化效果,甲、乙两位同学分别设计了如图甲、乙所示的实验。

下列叙述中不正确的是A.通过图甲实验产生气泡的快慢能比较Fe3+和Cu2+对H2O2分解的催化效果B.用图乙装置判断反应速率的大小,可测定反应产生相同气体体积所需的时间C.图乙实验中,如t s内针筒收集到V mL气体,则用O2表示的反应速率为VtmL/sD.为检查图乙装置的气密性,可关闭A处活塞,将注射器活塞推进一定距离后松开活塞,观察活塞是否回到原位5.一定温度下,将纯净的氨基甲酸铵(NH2COONH4)置于真空密闭恒容容器中(固体试样体积忽略不计)达到分解平衡:NH2COONH4(s)2NH3(g)+CO2(g)。

下列可以判断该反应达到化学平衡状态的是A.气体的总质量保持不变B.NH3与CO2的质量比保持不变C.2v(NH3)=v(CO2)D.混合气体的平均相对分子质量不变6.下列有关反应热的说法正确的是A.在化学反应过程中,吸热反应需不断从外界获得能量,放热反应不需从外界获得能量B.甲烷的燃烧热ΔH=-890 kJ·mol-1,则甲烷燃烧的热化学方程式为:CH4(g)+2O2(g)=CO2(g)+2H2O(g)ΔH=-890 kJ·mol-1C.已知:S(s)+O2(g)=SO2(g)ΔH1=-Q1 kJ·mol-1,S(g)+O2(g)=SO2(g)ΔH2=-Q2 kJ·moI-1,则Q1<Q2D.已知常温常压下:HCl(aq)+NaOH(aq)=NaCl(aq)+H2O(l)ΔH=-57.3 kJ·mol-1,则有:H2SO4(aq)+Ba(OH)2(aq)=BaSO4(s)+2H2O(l)ΔH=-114.6 kJ·mol-17.有A、B、C、D四种金属,将A与B用导线连接浸入电解质溶液,B不易腐蚀,将A 与D用导线连接浸入电解质溶液电流从A流向D,无明显变化,若将B浸入C的盐溶液中,有金属C析出,这四种金属的活动性顺序为A.D>C>A>B B.D>A>B>C C.D>B>A>C D.B>A>D>C 8.分析下表中数据,判断下列有关说法,其中正确的是化学键H—H Cl—Cl H—Cl键能/(kJ·mol-1)436243431A.H—Cl键断裂需要吸收的热量为431 kJB.氢气和氯气反应生成2 mol氯化氢气体,反应的ΔH=-183 kJ·mol-1C.氢气和氯气反应生成1 mol氯化氢气体,反应的ΔH=-183 kJ·mol-1D.H2、Cl2、HCl三种分子的稳定性最强的是Cl29.工业合成三氧化硫的反应为2SO2(g)+O2(g)⇌2SO3(g) ∆H=-198kJ/mol,反应过程可用如图模拟(表示O2,表示SO2,表示催化剂)。

(完整版)初中升高中衔接语文试卷练习(附答案)

(完整版)初中升高中衔接语文试卷练习(附答案)

初高中语文衔接试卷学校:___________姓名:___________班级:___________得分:___________评卷人得分一、基础知识(本题共3道小题,每小题3分,共9分)1.下列词语中加点字的字音和字形,全都正确的一组是A.惬(qiè)意撕(sī)杀狩(shòu)猎金榜题(tí)名B.折(zhé)本角(jué)逐按(ān)装舐(shì)犊情深C.筵(yán)席偌(ruò)大着(zháo)陆前倨(jù)后恭D.岿(kuī)然毗(pí)邻装帧(zhēn)噤(jìn)若寒蝉2.下列各句中,没有语病的一句是()(3分)A.美国国务院发言人珍·普萨基16日在记者会上称桥下彻“言论荒唐透顶,带有侮辱性”。

这是奥巴马政府正式对桥下彻的言论的强烈谴责。

B.奥斯卡金像奖设立以来,不仅对世界许多国家的电影艺术有着不可忽视的影响,而且反映美国电影艺术的发展进程,一直享有盛誉。

C.针对当前严峻的国际经济形势,于2月28日开幕的世界经济论坛第三十九届年会确定了“重塑危机后的世界”,寻找稳定金融市场与促使经济增长。

D.行业新标准的出台将加快大气污染防治工作的真正落实,煤电行业、钢铁行业、水泥行业以及工雨夜读书[宋]陆游一灯如萤雨潺潺,老夫读书蓬户间。

但与古人对生面,那恨镜里凋朱颜。

功名本来我辈事,人自蹭蹬①天何悭?君看病骥瘦露骨,不思仗下②思天山。

【注】①蹭蹬:比喻失意潦倒。

②仗下:借指朝堂。

20.首联描写出一幅怎样的图画?请简要分析。

(3分)21.全诗蕴含哪些思想感情?请简要分析。

(3分)评卷人得分三、现代文阅读(本题共2道小题,每小题18分,共36分)5.阅读下面的文字,完成后面题。

(20分)瓷瓶他的手机响了,是母亲打来的,母亲告诉他医院催着交钱。

他说,知道了,并叫母亲不要着急。

《常考题》初中高中化学必修二第六章《化学反应与能量》阶段练习(含答案解析)

《常考题》初中高中化学必修二第六章《化学反应与能量》阶段练习(含答案解析)

一、选择题2NH3 (g),当反应达到限度1.在密闭容器中进行反应:N2 + 3H2 (g) 高温、高压催化剂时,下列说法正确的是 ( )A.N2、H2完全转化为NH3B.此时反应已停止C.生成2mol 氨气的同时,同时生成3mol H2D.氮气、氢气、氨气的浓度相等2.将5.6 g铁粉投入盛有100mL 2mol/L稀硫酸的烧杯中,经2min反应完全。

如果反应前后浓液的体积不变,则该反应的平均反应速率可表示为A.v(Fe)=0.5mol/(L·min)B.v(H2SO4)=1mol/(L·min)C.v(FeSO4)=0.5mol/(L·min)D.v(H2)=0.5mol/(L·min)3.一定温度下,向容积为4L的密闭容器中通入两种气体发生化学反应,反应中各物质的物质的量变化如图所示,下列对反应的推断合理的是A.该反应的化学方程式为3B+4C⇌6A+3DB.反应进行到1s时,υ(A)=υ(D)C.反应进行到6s时,各物质的反应速率相等D.反应进行到6s时,B的平均反应速率为0.025mol⋅(L⋅s)−14.5.6 g铁粉与100 mL 1mol/L的稀盐酸反应时,为了使反应平缓进行且不改变H2的产量,可以使用如下方法中的①NaOH溶液②改用200mL 0.5mol/L的盐酸③加NaCl溶液④CuSO4固体⑤加CH3COONa固体⑥加NH4Cl固体A.②③⑤B.②⑤⑥C.①②⑥D.①②⑤5.某同学用下图所示装置探究原电池的工作原理,并推出下列结论,正确的是A.Cu质量减少B.Zn用作负极C.电子由Cu并经导线流向Zn D.该装置将电能转换为化学能6.一定温度下,在密闭容器中进行反应:4A(s )+3B(g)2C(g)+D(g),经2min,B的浓度减少0.6mol•L﹣1.对此反应的反应速率的表示,正确的是()①在2min内,用C表示的反应速率是0.1mol•L﹣1•min﹣1②反应的过程中,只增加A的量,反应速率不变③2分钟内,D的物质的量增加0.2 mol④分别用B、C、D表示的反应速率其比值为3:2:1A.①②B.③C.①D.②④7.某含氯有机污染物X可通过加入高锰酸钾溶液除去,经处理后X转变为氯化物和CO2,而高锰酸根离子则转变为MnO2,部分物质和离子间量的关系为2KMnO4~X~3Cl-~2CO2.常温下,在某密闭容器中进行上述反应,测得c(KMnO4)与时间的关系如表所示。

初高中英语衔接教材(2017)

初高中英语衔接教材(2017)

word格式可编辑初高中英语衔接教材目录前言第一章高中新教材简介及学习方法第二章词汇知识及实践演练第三章句子成分和基本句型第四章简单句的种类第五章动词的时态语态第六章复合句:宾语从句,状语从句,定语从句第一章初、高中英语的区别及学习方法一、认识初、高中英语的区别即将开始的高中学习生活,特别是英语的学习是与初中阶段有着很大不同的:1. 课本编排上的区别:初中的每一个单元是分为4课的,每篇中有的是对话,有的是阅读文,也配有一些练习,而高中的每个单元并不分课,而是基本上按模块(module)划分。

教材把话题、结构、功能和任务型活动有机地结合在一起,既符合中国学生英语学习的规律和特点,又体现了新的教育教学理念。

教材系统性强,各单元采用板块的设计形式,有利于教师灵活整合教材内容。

大体分为“Warming up”(热身),即是针对本单元的话题提出的一些问题,以练习口语的形式做引子,便于进入本单元的主题,下个部分就是“Reading”了,高中的阅读文分为阅读前和阅读后的讨论、思考问题并加入了有关的语言知识的学习及练习,在阅读教学的安排上。

读后活动的练习层次清楚,体现对课文理解考察的三个维度:弄清事实(Factual) —分析信息(Analytical) —判断和推理(Inferential)。

可以说是极大地丰富了教学内容。

除此之外还会有稍短的阅读与听力及写作等方面的练习,写作训练既重视结果,更重视过程,提供铺垫性活动以加强对过程性写作的监督。

通过听、读活动从语言和写作技巧方面进行相关输入,为学生的最终成长奠定基础。

2. 在词汇上的区别:我们初中的教材已是新版本了,每个单元的单词可能大家觉得已经不少了,但高中教材中的词汇更是成倍地增加了,增加了大约2000词。

这也是新编教材的一个特点,加入了许多当前常用的,新出现的流行的词汇,也是与我们学的新编初中课本相承接的,所以,为了能尽快适应高中词汇的学习,我们应该及早着手把初中阶段的词汇再熟悉一遍。

【赢在小题】人教A版高中数学基础小题专题练与知识全归纳(58页,pdf版)

【赢在小题】人教A版高中数学基础小题专题练与知识全归纳(58页,pdf版)

赢在小题赢在高考赢在小题基础小题专题练与知识全归纳(内含初高中衔接内容)从初中到高中 ! 从高一到高三!从知识归纳到基础题目训练,所有内容应有尽有!只有你想不到的,没有你不想要的!!前言如何科学高效地学习高中数学高中学生仅仅想学是不够的,还必须“会学”,要讲究科学的学习方法,提高学习效率,才能变被动学习为主动学习,才能提高学习成绩。

一、制订计划使学习目的明确,时间安排合理,不慌不忙,稳扎稳打,它是推动主动学习和克服困难的内在动力。

但计划一定要切实可行,既有长远打算,又有短期安排,执行过程中严格要求自己,磨炼学习意志。

二、课前预习。

怎样预习呢?就是自己在上课之前把内容先看一边,把自己不懂的地方做个记号或者打个问号,以至于上课的时候重点听,这样才能够很快提高自己的水平。

但是预习不是很随便地把课本看一遍,预习要有个目标:(1)通过预习可以把书本后面的练习题独立完成;(2)思考与本节课有关的旧知识以及如何将新知识融合在里面;(3)问自己几个问题:公式、定理、性质是如何推导出来的?课本的例题有什么特性?可否拓展?如何拓展?预习不能走过场,要讲究质量,力争在课前把教材弄懂,上课着重听老师讲思路,把握重点,突破难点,尽可能把问题解决在课堂上。

三、上课认真听讲。

上课的时候准备课本,一只笔,一本草稿,一本笔记。

做不做笔记你们自己决定,不过我提倡数学课做笔记。

有些知识点比较重要,课本上又没有的,你们可以补充在你预习时已有的相应知识点的位置;另外,在预习中不能解决或者是还存在的问题现在通过课堂的听讲有所感悟也可以记录下来,该记的地方才记下来,而不是全抄全录,顾此失彼;如果你觉得某个例题比较新或者比较重要,也可以把它记在相应位置上,这样以后复习起来就一目了然了。

那么草稿本要来干什么呢?课堂上你可以自己演算还有做课堂练习。

四、及时复习是高效率学习的重要一环。

通过反复阅读教材,多方面查阅有关资料,强化对基本概念知识体系的理解与记忆,将所学的新知识与有关旧知识联系起来,进行分析比较,一边复习一边将复习成果整理在笔记本上,使对所学的新知识由“懂”到“会”。

2024年初高中语文衔接:学习方法指导+课件

2024年初高中语文衔接:学习方法指导+课件

四、高一语文学法指导
(6)练,一是通过练习,巩固提高所学知识,及时查 漏补缺。练习时认真对待,规范答题,及时整理笔记。二 是勤练笔,认真对待每次习作,老师批改后要认真修改, 不断完善。
语文学习要讲究方法,希望大家牢记六字诀,结合个 人情况培养良好的学习习惯和方法,踏踏实实为语文学习 打下扎实的基础。只有基础打好了,才能为后期的学习提 供源源不断的动力。最后,祝愿大家在高中阶段能学有所 得、学有所成。
四、高一语文学法指导
二、牢记“听、说、读、写、思、练”六字诀 (2)说,一是上课要积极回答问题、主动参与讨论、 多和人交流看法。二是要多向老师同学请教,不懂就问。 三是积极参加朗诵、演讲、辩论等活动,提高表达能力。
四、高一语文学法指导
二、牢记“听、说、读、写、思、练”六字诀 (3)读,一是读背课内要求熟记的内容,大声读出, 有利于理解和记忆。二是广泛阅读课外书籍,名著、报刊 等,拓宽视野、丰富情感。
二、高中语文的变化及要求
变化之一,教学内容加深了。从教材看,初中学的 是一般记叙文、说明文和议论文,高中学的是复杂的记 叙文、说明文和议论文。从教学要求看,学习的内容也 明显加深了。如议论文,“教学大纲”规定:初三要 “能把握文章阐述的观点,了解论证方法,领会语言的 严密性”,而到高中则要求“能理清层次,把握中心论 点,分析论证方法,注意文章的逻辑性”。
四、高一语文学法指导
四、高一语文学法指导
一、课堂学习“三步走” (1)主动预习 提前阅读将学课文甚至了解该单元其他课文内容,确 立课堂学习目标。对于文言文单元,要求熟读课文,动手 圈点勾画,旁批疑难点。
四、高一语文学法指导
一、课堂学习“三步走” (2)专心听讲 上好课、听好课是学习各门功课的重要途径。听课要 眼到、手到、心到,要跟随老师思路,作好笔记。只有在 课堂上达到对老师所讲内容的最基本的消化吸收,才可能 为进一步的学习打下基础。

高中语文高考复习人教新教材必修上下册文言文教考衔接练习(附参考答案)

高中语文高考复习人教新教材必修上下册文言文教考衔接练习(附参考答案)

高考语文文言文教考衔接练习班级考号姓名总分必修上册一、劝学1.写出下列句中通假字的本字,并解释含义(1)木直中绳,以为轮__________________(2)虽有槁暴__________________(3)则知明而行无过矣__________________(4)君子生非异也__________________2.解释下列多义词(1)绝①假舟楫者,非能水也,而绝江河__________________②率妻子邑人来此绝境(《桃花源记》)__________________③群响毕绝(《口技》)__________________(2)假①君子生非异也,善假于物也__________________②乃悟前狼假寐,盖以诱敌(《狼》)__________________③以是人多以书假余(《送东阳马生序》)__________________④武与副中郎将张胜及假吏常惠等(《苏武传》)__________________⑤因求假暂归(《孔雀东南飞》)__________________3.解释下列句中加点的古今异义词(1)君子博.学而日参省乎己古义:_____________________________________________________________________ 今义:学问广博精深(2)蚓无爪牙..之利古义:______________________________________________________________________ 今义:爪和牙是猛禽、猛兽的武器,比喻坏人的党羽(3)非蛇鳝之穴无可寄托..者古义:______________________________________________________________________ 今义:托付;把理想、希望、感情等放在(某人身上或某种事物上)4.指出下列句中加点词语的活用类型并释义(1)假舟楫者,非能水也__________________(2)君子博学而日.参省乎己__________________(3)上.食埃土,下.饮黄泉__________________(4)不如登高.之博见也__________________(5)故木受绳则直.,金就砺则利.__________________(6)用心一.也__________________(7)假舆马者,非利足也__________________(8)木直中绳,以为轮__________________5.指出下列句中虚词的意义和用法(1)假舟楫者,非能水也__________________(2)不复挺者,使之然也__________________(3)今者出,未辞也(《鸿门宴》)__________________6.指出下列句子的句式特点(请指出标志词)(1)虽有槁暴,不复挺者,使之然也__________________(2)非蛇鳝之穴无可寄托者,用心躁也__________________(3)青,取之于蓝,而青于蓝__________________(4)冰,水为之,而寒于水__________________(5)蚓无爪牙之利,筋骨之强__________________7.了解并掌握常见的古代文化常识(1)荀子(约前313-前238),名________,________末期赵国人,思想家、教育家。

初高中数学衔接教学课程讲义----第6节函数的定义

初高中数学衔接教学课程讲义----第6节函数的定义

初高中数学衔接课讲义——函数第六讲 函数的定义【映射】1.定义一般地,设B A ,是两个非空集合,如果按某一个确定的对应关系f ,使对于集合A 中的任意一个元素x ,在集合B 中都有唯一确定的元素y 与之对应,那么就称对应B A f →:为从集合A 到集合B 的一个映射.记作“f (对应关系):A (原象)B →(象)”2.映射的特性(1)存在性:对集合A 中任一个元素a ,在集合B 中都存在元素b 与之对应;(2)唯一性:集合A 中的任一元素在集合B 中的对应元素是唯一的;(3)封闭性:集合A 中任一个元素的对应元素都必须在集合B 中;(4)确定性:非空集合B A ,及对应关系都是确定的;(5)方向性:集合A 到集合B 的对应与集合B 到集合A 的对应所确定的映射是不同的.3.一一映射的概念如果映射f 是集合A 到集合B 的映射,并且对于集合A 中的任何一个元素在集合B 中都有象,集合B 中的每一个元素在A 中都有象,那么就说两个集合之间存在着一一对应关系,并把这个映射叫做一一映射.【提示】(1)函数一定是映射,但是映射不一定是函数.(2)在函数中,B A ,是两个数集,即B A ,中的元素都是实数,但在映射中,B A ,中的元素不一定是实数.【例题1】下列对应是映射的有__________.【例题2】下列各个对应中,构成映射的是( )A.B. C. D.【例题3】下列不能表示}40|{≤≤=x x P 到}20|{≤≤=y y Q 的映射的是( ) A.x y x f 21:=→ B.x y x f 31:=→ C.x y x f 23:=→ D.x y x f =→:【例题4】若),y x (在映射f 作用下的象是),xy y x +(,则()3,2-在f 作用下的象是_________;()3,2-在f 作用下的原象是__________.【例题5】设集合A 和B 都是实数集,映射B A f →:把集合A 中的元素x 映射到集合B 中的元素13+-x x ,则在映射f 下,象1的原象组成的集合是( ) A.}1{B.}210{--,,C.}0{D.}11{0-,,【例题6】设},|),{(R y R x y x B A ∈∈==,),(),(:b y kx y x f +→是从集合A 到集合B 的映射,若B 中元素)(2,6在映射f 下对应A 中元素)13(,,则=k _________,=b __________.【函数的定义】设集合B A 、是两个非空数集,对于A 中的任意数x ,按照某种关系的对应关系f ,在集合B 中都有唯一确定的数)(x f 与它对应,那么就称B A f →:为从集合A 到集合B 的一个函数,记作A x x f y ∈=),(.其中,x 叫做自变量,x 的取值范围A 叫做的定义域,与x 的值相对应)(x f 的值叫做函数值,所有函数值构成的集合}|)({A x x f ∈叫做函数的值域.【提示】(1)B A 、都是非空数集,故定义域(或值域)为空集的函数是不存在的.(2)B 不一定是函数的值域,如函数12+=x y 可称为实数集到实数集的函数,但函数的值域不是实数集R .(3)函数三要素的定义域、对应关系和值域.其中对应关系是核心,定义域是根本.(4)函数符合)(x f 的含义:)(x f 表示一个整体,一个函数,而符号“f ”可以看作是对“x ”施加的某种法则(或运算).【例题1】判断正误:(1)函数值域中的每一个数都有定义域中的数与之对应; ( )(2)函数的定义域可以为空集; ( )(3)定义域和对应关系确定后,函数值域也就确定; ( )(4)若函数的定义域只有一个元素,则值域也只有一个元素; ( )(5)对于不同的x , y 的值也不同; ( )(6)函数23)(x x x f +=,则2)1(=f ; ( )【例题2】已知函数213)(+++=x x x f ,求))3((),3(--f f f 的值.【例题3】函数6)(+=x x f ,则=)3(f __________.【例题4】函数1)1()(3099-+-=x xx f ,则=-)2(f __________.【例题5】已知函数213)(+++=x x x f ,当0>a 时,求)1(),(-a f a f 的值.【例题6】下列图象能表示函数图象的是( )A.B. C. D.【例题7】下列图中能作为函数图象的是( )A.B. C. D.【例题8】下列四个图象中,不是函数图象的是( )A.B. C. D.【例题9】图中能作为函数图象的是( )A. B. C. D.【例题10】)(x f y =定义在[]3,2-上,则函数)(x f y =图象与直线2=x 的交点个数有( )A.0个B.1个C.2个D.不能确定【例题11】函数)(x f y =的图象与直线1=x 的公共点数目是( )A.1B.0C.0或1D.1或2【课堂练习】【练习】设集合A 和集合B 都是自然数集合N ,映射B A f →:把集合A 中的元素n 映射到集合B 中的元素n n+2,则在映射f 下,象20的原象是( )A.2B.3C.4D.5【练习】判断下列说法是否正确:(1)表达式相同的两个函数是相同函数;( ) (2)定义域、值域均相同的函数是同一函数; ( ) (3)函数的定义域、值域均是无限集; ( )【练习】关于函数)(x f y =与函数)1(+=x f y 的叙述一定正确的是( )A.定义域相同B.对应关系相同C.值域相同D.三要素都不可以不同【练习】下列图形可以表示为以}10|{≤≤=x x M 为定义域,以}10|{≤≤=x x N 为值域的函数是( )A.B. C. D.【练习】函数11)(22+-=x x x f ,则=)21()2(f f ( ) A.1B.-1C.53 D.53-【练习】设|||1|)(x x x f --=,则=)]21([f f ( ) A.21-B.0C.21D.1初高中数学衔接课讲义——函数第六讲 函数的定义 【映射】4.定义一般地,设B A ,是两个非空集合,如果按某一个确定的对应关系f ,使对于集合A 中的任意一个元素x ,在集合B 中都有唯一确定的元素y 与之对应,那么就称对应B A f →:为从集合A 到集合B 的一个映射.记作“f (对应关系):A (原象)B →(象)”5.映射的特性(1)存在性:对集合A 中任一个元素a ,在集合B 中都存在元素b 与之对应;(2)唯一性:集合A 中的任一元素在集合B 中的对应元素是唯一的;(3)封闭性:集合A 中任一个元素的对应元素都必须在集合B 中;(4)确定性:非空集合B A ,及对应关系都是确定的;(5)方向性:集合A 到集合B 的对应与集合B 到集合A 的对应所确定的映射是不同的.6.一一映射的概念如果映射f 是集合A 到集合B 的映射,并且对于集合A 中的任何一个元素在集合B 中都有象,集合B 中的每一个元素在A 中都有象,那么就说两个集合之间存在着一一对应关系,并把这个映射叫做一一映射.【提示】(1)函数一定是映射,但是映射不一定是函数.(2)在函数中,B A ,是两个数集,即B A ,中的元素都是实数,但在映射中,B A ,中的元素不一定是实数.【例题1】下列对应是映射的有__________.答案:①④【例题2】下列各个对应中,构成映射的是( )A.B. C. D.答案:B 【例题3】下列不能表示}40|{≤≤=x x P 到}20|{≤≤=y y Q 的映射的是( ) A.x y x f 21:=→ B.x y x f 31:=→ C.x y x f 23:=→ D.x y x f =→: 答案:B【例题4】若),y x (在映射f 作用下的象是),xy y x +(,则()3,2-在f 作用下的象是_________;()3,2-在f 作用下的原象是__________.答案:),(61-; ),)或((133,1-- 【例题5】设集合A 和B 都是实数集,映射B A f →:把集合A 中的元素x 映射到集合B 中的元素13+-x x ,则在映射f 下,象1的原象组成的集合是( ) A.}1{B.}210{--,,C.}0{D.}11{0-,,答案:D【例题6】设},|),{(R y R x y x B A ∈∈==,),(),(:b y kx y x f +→是从集合A 到集合B 的映射,若B 中元素)(2,6在映射f 下对应A 中元素)13(,,则=k _________,=b __________.答案:2; 1【函数的定义】设集合B A 、是两个非空数集,对于A 中的任意数x ,按照某种关系的对应关系f ,在集合B 中都有唯一确定的数)(x f 与它对应,那么就称B A f →:为从集合A 到集合B 的一个函数,记作A x x f y ∈=),(.其中,x 叫做自变量,x 的取值范围A 叫做的定义域,与x 的值相对应)(x f 的值叫做函数值,所有函数值构成的集合}|)({A x x f ∈叫做函数的值域.【提示】(1)B A 、都是非空数集,故定义域(或值域)为空集的函数是不存在的.(2)B 不一定是函数的值域,如函数12+=x y 可称为实数集到实数集的函数,但函数的值域不是实数集R .(3)函数三要素的定义域、对应关系和值域.其中对应关系是核心,定义域是根本.(4)函数符合)(x f 的含义:)(x f 表示一个整体,一个函数,而符号“f ”可以看作是对“x ”施加的某种法则(或运算).【例题1】判断正误:(1)函数值域中的每一个数都有定义域中的数与之对应; ( )(2)函数的定义域可以为空集; ( )(3)定义域和对应关系确定后,函数值域也就确定; ( )(4)若函数的定义域只有一个元素,则值域也只有一个元素; ( )(5)对于不同的x , y 的值也不同; ( )(6)函数23)(x x x f +=,则2)1(=f ; ( ) 答案:(1)√ (2)× (3)√ (4)√ (5)× (6)√【例题2】已知函数213)(+++=x x x f ,求))3((),3(--f f f 的值. 解析:由题意可得:123133)3(-=+-++-=-f 1221131)1())3((+=+-++-=-=-∴f f f 答案:12;1+- 【例题3】函数6)(+=x x f ,则=)3(f __________.答案:3 【例题4】函数1)1()(3099-+-=x x x f ,则=-)2(f __________.解析:由题意可得:当2-=x 时,()()01299≠--,()[]112099=--∴ ()8121)2(3-=--+=-∴f 答案:8-【例题5】已知函数213)(+++=x x x f ,当0>a 时,求)1(),(-a f a f 的值. 解析:由题意可得:当0>a 时,213213)(+++=+++=a a a a a f 11221131)1(+++=+-++-=-a a a a a f 答案:213)(+++=a a a f ; 112)1(+++=-a a a f 【例题6】下列图象能表示函数图象的是( )A.B. C. D.答案:C 【例题7】下列图中能作为函数图象的是( )A.B. C. D.答案:D 【例题8】下列四个图象中,不是函数图象的是( )A.B. C. D.答案:B 【例题9】图中能作为函数图象的是( )A.(1)、(2)B.(1)、(3)C.(2)、(4)D.(3)、(4)答案:A【例题10】)(x f y =定义在[]3,2-上,则函数)(x f y =图象与直线2=x 的交点个数有( )A.0个B.1个C.2个D.不能确定答案:B【例题11】函数)(x f y =的图象与直线1=x 的公共点数目是( )A.1B.0C.0或1D.1或2答案:C【课堂练习】【练习】设集合A 和集合B 都是自然数集合N ,映射B A f →:把集合A 中的元素n 映射到集合B 中的元素n n+2,则在映射f 下,象20的原象是( )A.2B.3C.4D.5答案:C【练习】判断下列说法是否正确:(4)表达式相同的两个函数是相同函数;( ) (5)定义域、值域均相同的函数是同一函数; ( ) (6)函数的定义域、值域均是无限集; ( ) 答案:(1)× (2)× (3)×【练习】关于函数)(x f y =与函数)1(+=x f y 的叙述一定正确的是( )A.定义域相同B.对应关系相同C.值域相同D.三要素都不可以不同答案:C【练习】下列图形可以表示为以}10|{≤≤=x x M 为定义域,以}10|{≤≤=x x N 为值域的函数是( )A.B. C. D.答案:C 【练习】函数11)(22+-=x x x f ,则=)21()2(f f ( ) A.1B.-1C.53 D.53- 解析:由题意可得:531212)2(22=+-=f ,53121121)21(22-=+⎪⎭⎫ ⎝⎛-⎪⎭⎫ ⎝⎛=f∴15353)21()2(-=-=f f . 答案:B【练习】设|||1|)(x x x f --=,则=)]21([f f ( ) A.21-B.0C.21 D.1 解析:由题意可得:0|21||121|)21(=--=f ,1|0||10|)0()]21([=--==∴f f f . 答案:D。

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初高中衔接练习六I. Multiple choices Part 131. The enemy troop suddenly took the small village by surprise ___ a rainy morning.A. onB. atC. inD. during32. This is the school ___ they visited last year and is the one ____ my father once worked.A. that; whereB. where; thatC. where; whereD. that; that33. The college entrance examination is coming, the students are ____ it.A. preparingB. prepared forC. preparedD. preparing for34. The task was very hard, so ___ were needed.A. ten more menB. ten men moreC. more ten menD. men more ten35. He wanted to read more, so he asked his friend if there was ___ to read.A. something easy enoughB. something enough easyC. enough easy somethingD. easy enough something36. The room is very large and only little room ___ by the new piano.A. are taken upB. takes upC. is taken upD. is taking up37. What ___ time it is to listen to a speech having nothing to do with you!A. wasteB. wastesC. a waste ofD. a waste for38. __ your help, we have _____ .A. Thanks to, finishedB. Thanks to, endedC. Thanks for, finishedD. Thanks for, completed39. When and where to build the new factory ____ yet.A. is not decidedB. are not decidedC. has not decidedD. have not decided40. It is necessary ___ me ___my studies before a new term.A. for, to make a plan forB. of, making a plan forC. for, to make a plan ofD. of, making a plan of41. He ___ the club and _____ its activities.A. took part in; joinedB. joined; took part inC. joined; took a part in 42. The noble man prefers ___money to him ___sorry to him.A. giving; to sayingB. giving; to sayC. give; to say43. To gain honor for our country, we will try our best ___ the game. A. competing in B. competing against C. to compete with44. Tom was so angry with Bob that he hit __ . A. Bob in the head B. Bob's head C. Bob on the head45. __ at the news that I didn't know what to say to comfort her.A. So sad she lookedB. So sad did she lookC. So sadly she lookedD. So sadly did she look46. Only a fool enjoys ____ in public.A. making fun ofB. to make fun ofC. being made fan ofD. to be made fan of47. Our English teacher ___ by the teachers and students.A. is good thought ofB. is thought high ofC. is sung highly praise forD. is spoken highly of48. I like ____ of the two stories, for this story is ___ than that one.A. both; not more interestingB. neither; no more interestingC. neither; not more interestingD. either; no more interesting49. You'd better make a mark ____ you have any questions.A. at whichB. at whereC. the placeD. where50. The stubborn boy didn't ____ so that he missed the chance.A. take adviceB. follow an adviceC. give some adviceD. ask for advice51. Old as the car is, ___ it works quite well.A. butB. yetC. soD. however52. They were ___ inventors than pure scientists.A. moreB. lessC. manyD. worse53. The teachers are doing what they ____ their stuaits.A. can to teachB. can teachC. can teachingD. can to teaching54. Liaocheng, Shandong Pro. is a beautiful city, _ 11 pay a three-day visit.A. whichB. whereC. to whichD. in which55. Don't have your children ___ for hours reading books in _____ dark a room.A. sitting; soB. sit; suchC. to be sitting; soD. to sit; such56. I want to know ___ .A. what the matter isB. what matter it is 57. After so long a walk, he was too ___ further.A. tired for walkB. tire to walk 58. Why not trust and use David? He is still as strong asin the team. A. somebody else B. everybody else C. anybody else59. After the accident, she had ___ all over. A. pains B. pain C. ache60. I forget where I read the article, or I ___ it to you now.A. will showB. would showC. am going to showD. am showingPart 2D. took part in; took part inD. to give; to saying D. to compete in D. on Bob's head C. what's the matter C. tiring to go D. the matter is what D. tired to go D. nobody else D. aches85. What a strange man! He loves his wife, but ___ he often beats her.A. at a timeB. at one timeC. at times 86. The books, ____ the dictionaries, must be put back where they ____A. included; wereB. to include; areC. including; were 87. Paper ____ the fibres of plants for many years.A. has been made fromB. have been made out ofC. has made up ofD. have been made into88. Before the game started Alien's friends believed he was ___ but he didn't feel ___. Then after the first ten minutes, hebegan to take heart.A. sure to win; sure to successB. sure of success; sure of itC. sure to win; sure about thatD. sure about winning; sure to win89. His father looks young, but ___ fact he is ____ .A. in; in the fortiesB. in; in his fortiesC. in the; in the fortiesD. in; in his forty90. It's quite strange that the man sleeps with his mouth ___ and his eyes ___ .A. closed; openB. closed; openedC. closing; openD. closing; opening61. __ for the doctor's careful treatment, he ___ t ill last year.A. If it is not; can't liveB. Were it not; couldn't liveC. Had it not been; couldn't have livedD. If they were not ; couldn't live62. They stayed up until midnight ____ the old year out and the new year in. A. and saw B. to see C. seeing63. George spent ____ studying. A. the whole day B. all during the day C. altogether a dayD. for seeing D. entirely a day 64. You may ____ find it hard to get along well with them.A. certainlyB. likelyC. possiblyD. probably65. The house that ____ by the fire belongs toA. was destroyed, mineB. destroyed, mineC. was destroyed, meD. destroyed, me66. --- ___ will the meeting ___ ?---In about 20 minutes.A. How long, lastB. When, lastC. How often, finish67. While ___ in the room, we were all very excited.A. waitedB. waitingC. to wait68. ____ you ____ to go to watch the football match with me?A. Would; likeB. Would; ratherC. Do; feel likeD. How soon, end D. wait D. Do; would like69. She asked _____ we were getting on well with our work.A. howB. ifC.whatD. that 70. I'm wondering ____ he expects will win the gold medal in Men's Single.A. whomB. whichC. whoD. what 71. Don't think of the exam. , it has been passed quite a fewdays.A. In allB. Not at allC. After allD. At all72. She ____ a man ____ a lot of money.A. was married; withB. married; withC. marrietl; toD. was married; to 73. During the next ten years we both worked day and night to ____ the money we had borrowed.A. pay offB. pay forC. pay toD. pay back74. --Where do you think ___ he ____ the computer? ---Sorry, I have no idea.A. /; boughtB. has; boughtC. did; buyD. had; bought75. We have been ___ by all our friends since we settled in the new house.A. called onB. called atC. called intoD. called for76. I ___ her voice at once on the phone, though we hadn't seen each other for ten years.A. heardB. knewC. realizedD. recognized77. But she had to ___ the company and ___ a man in order to get a job.A. lie to; pretended to beB. lie; pretended to beC. lie to; pretended beingD. lie; pretended as78. The man went into the room, ___ rather strange.A. to lookB. lookingC. lookedD. and looking79. The driver drove __ hit a big tree and the car came to a stop.A. too carelessly toB. carelessly enough toC. so carelessly that heD. so careless that he 80. When he saw all hisbooks _______________________ here and there on the floor, he knew that something terrible ___ .A. lying; must have happenedB. lie; must happenC. lay; might have happenedD. had lain; could have happen 81._____ Mr Brown's anger, it was his own son who didn't agree ___ him.A. To; withB. Because of; toC. With; ofD. For; on82. But later people developed a way of printing, ____ rocks.A. usedB. usingC. and useD. uses83. The problem was that it is __ valuable ___everyday use.A. too; toB. too; forC. too; ofD. so; that 84. ---Where is Mother ---She is in the kitchen. She A. is doing B. was doing ____ the housework all morning.C. has doneD. has been doing D. at the same timeD. including; are91. If you have a problem ___ your compositi on, you had better ask your teacher _______ .A. i n; on some adviceB. for; for some advicesC. on; some adviceD. with; for some advice92. There ____ a lot of coal mines in the south, but many of them have bee n closed or are ____ b e closed.A. use to havi ng; about toB. used to be; toC. use to havi ng; going toD. used to be; supposed to93. The weather in Britai n is _ too cold in win ter too hot in summer.A. either; orB. both; andC. n either; norD. or; and94. Forgive him, please. I don't think he broke your mirror __ .A. with careB. on purposeC. for funD. with aim95. He advised the fanners to choose the best seed-heads, __ that had the best colour.A. the oneB. the onesC. oneD. ones96. Although he is con sidered a great writer, ___ .A. his works is not widely readB. but his works are not widely readC. however his works are n ot widely readD. yet his works are not widely read97. -- ____ o f the populati on of the city _____ workers? --About 60 perce nt.A. What; isB. What; areC. How much; isD. How much; are98. I was advised to arrange for in sura nee ___ I n eeded medical treatme nt.A. althoughB. in caseC. so thatD. if only99. ---What can I do for you ? ---Well , I'm afraid the box is heavy for you , but thank you all the same .A . soB . muchC . veryD . too100. --Peter is very clever and he studies hard as well . ---No ______ be always wi ns first in the exam in atio ns.A . doubtB . questionC . wonderD . problemII. Cloze test 舟山市This mornin g,! got a funny feeli ng. Today I had to give a report in my 26 , and I had bee n afraid to do so for along time!Mom came into the kitche n, aski ng,"Are you ready, 27 ? " "Yes, "I an swered quietly. 28 in fact I was n'tready! On my way 29 school, I could feel my heart beati ng . I hated this!I went into Mrs Owens' class. She was smiling, and saying 30 to all her students as she did every morning. "Hi,Sam,"she said to me as I walked 31 the classroom."Hi,"I said and quickly sat in my 32 I looked at the clock. The time was near. Then Mrs Owens started ," Sam, it's time for you to show yourself. " Show 33 ?Oh, no! I got up slowly, 34 the ground as I walked to the front of the classroom. Then, I looked up, and every one was look ing at me. Mrs Owens knew I was 35 ., so she came beside me, and put, her hand on my back.She said to the class," Sam has worked very hard on his 36 ,and I know it is a very in terest ing report. "The n she turned to me and asked," Sam, —37 did you like best about your report on Hawaii?"I thought about the fun things I _38— about surfing before, and I started to talk. I talked and talked 一39_ the wholeclass, and I was not n ervous at all. It was great fun * it was n't frighte ning . The class cheered * as I fini shed and Mrs Owe ns was 一40 . In fact ,I can do better tha n I think I can — if I try! I am proud of myself.III.阅读训练A ) Foulsham House is a fine, large house of the 1790s . It stands by the River Byer, in twenty — five hectares (公顷)of the best farmland in the southwest .The house was built by Smiths on, and the story goes back to George, the son of King of Whales, who fell in love with the beautiful Lady Kitty, at one of the first Foulsham's wild woods ( 野夕卜[parties . Many years ago many great men rode on the hills about Foulsham House, and many fine girls took tea in the Green Room .The house has eight bedrooms, three bathrooms (浴室),two living — rooms, and a dining — room with a real Adam fireplace . Its library has a good view over the park and the river . All rooms are light and airy, with good, high windows, and wood floors .26. A. class B. house C. party D. hometow n27. A. friends B. classmates C. Owe ns D. Sam28. A. Then B. But C So D. Or29. A. on B. from C. to D. i n30. A. sorry B. hello C.goodbye D. tha nks31. A. i nto B. out of C. away from D. far from32. A. bed B. seat C. dining- room D. readi ngroom 33. A. me B. us C. myselfD. ourself 34. A. look ing after B, look over C. look ing at D. looking for35. A. glad B. n ervous C. active D.happy36. A. dictio nary B. magaz ine C. n ewspaper D. report37. A. what B. who C. where D. whom38. A. will read B. have read C. am read ing D. had read39. A. in front of B. over C. beside D. near40. A. playi ng B. dancing C. si ngi ng D. smili ngAt the back of the house there is room for four cars . The third Foulsham once kept there . In many other ways, this house of the 1790s meets the needs of the 1990s.If you wish to know more about Fouls ham House, write to : Harvey . Platt, Long ford &Son 6, Castle Green,Gilliam, By reside .1. Fouls ham House is _____ .A .an old farm houseB . a 25— house for people to come to listen to its storyC .a large house for people to come to listen to its storyD . a house with a history of nearly two hundred years2. We learn from the reading that _____ .A . Smithson built the house for wild wood partiesB .many important people had been to Foulsham HouseC . George and Lady Kitty loved the house and had many parties hereD . the Green Room is a place for many girls to make tea3. The sentence 'Its library has a good view over the park and the river, ' means ' ____ ' .A . The park and the river can be seen clearly from the libraryB .The library has a picture of the park and the river on the wallC .The library was built in the park by the riverD . Books about the park and the river can be read in the library4. Which of the following is true?A .The 3rd Foulsham often rode his horses at the back of the house .B .The house has a room for four cars at the back of the house .C .The road behind the house is wide enough for 4 cars to go .D . There is some parking behind the house .5. We can infer (推断)that Harvey ____ .A .wants the house to meet the needs of modern lifeB .wants people to know the history of the houseC .wants to sell the houseD . wants some money to make the house meet today's needsB ) John sent for a doctor because his wife was ill . He called the doctor and made sure they would meet at five . He arrived at the doctor's at twenty to five . He thought, "It's a little bit earlier . I'll wait for a moment . It's good to keep the time . "Then he stopped his car in front of the doctor's . He looked around and saw a noisy square (广场) not far fromhere . He went there and sat down on a chair to enjoy the last light of afternoon sun and make himself quiet . He saw some children playing and some women talking to each other happily .Suddenly he heard a girl crying . He came up to her and asked some questions . Then he knew she got lost . John tried to find out her address and took her home . The girl's parents were very thankful .Then John hurried to the doctor's . The doctor said angrily when he saw him, "You're late . Why did you keep mewaiting for twenty minutes? " John said nothing but one word — "Sorry! "1. John drove to the doctor's _____A .lateB . on timeC .in timeD . in no timeC . see the children and the womenD . help the girl her parents were angry with her D .she didn't find the way homeC . five o'clockD . forty past fiveC . helpful personD . lucky person 1. My dress is getting d and needs washing.2. Could you please put the r ______ into the dustbin?3. There is a truck c _____ lots of litter outside, then it will carry all the litter out of the city.4. W ____ we live, we should do something useful around our neighborhood.5. Most of the waste things can be r ______ to make some new things.6. Today p _______ the environment is very important.7. You will never draw pictures on p _____ walls.8. Suddenly a piece of music c _____ to my ears.9. We must do something useful to make a c ________ to make our world beautiful.10. In summer I often go swimming in a swimming pool n _____ .11. The beds and chairs in the house are rather c _________ . I like living here.12. They stopped to watch the beautiful s _______ on the way to the Great Dam.13. Jack often practices s _________ E nglish with foreigners at weekends.14. After the Spring Festival, winter won 'tl ______ long.15. Jim thought the train was like a big m _______ party .16. I think t _______ by train is the best .17. Please find five differences at l ______ between the two pictures .18. There are many beauties 'photos on the cover pages of those m ________ .19. To offer hot water and check the tickets is her job . We know she is a c ______ .20. Mount Tai is one of the most beautiful m ________ in China .Part 1 31--35 AADAA 36-40 CCAAA 41-45 BADCB 46-50 CDBDA 51-55 BAACA56-60 CDCAB2. John went to the square to ____ A .spend the time B .enjoy himself3. The girl cried because _____A .someone hit herB .she fell off her bikeC 4. At last John got to the doctor's at ____A .twenty to fiveB . twenty past five 5. From the story, we know John is a ____ A .busy person B . quiet personIV. 根据句子意思和首字母提示用适当的单词填空:61-65 CBACC 66-70 DBABC 71-75 CBDAA 76-80 DABCA81-85 ABBDD 86-90 CACBA 91-95 DBCBB 96-100 DDBDCcloze test 舟山 26. A 27. D 28, B 29. C 30. B 31. A 32. B 33. C 34. C 35. B 36. D 37. A 38. D 39. A 40. D Readi ng: Passage A 1.D 2.B 3.A 4.D 5.C II.根据句子意思和首字母提示用适当的单词填空I- 5 dirty , rubbish , collect ing , Wherever , recycled ,6-10 protect ing , public , came , con tributi on , n earby ,II- 15 comfortable , scenery , speak ing , last , moving ,16-20 travelli ng , least , magaz ines , con ductor , mountains .Part 2 Passage B: 1. C 2 . A 3 . D 4 . B 5. C。

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