临沂高一英语期末试题

2024-05-31

临沂高一英语期末试题（精选5篇）

篇1：临沂高一英语期末试题

高一期末英语试题(出题人：郑春梅）

第I卷（选择题，共65分）

一．单项选择（共20个，每个1分）()1.He is in his _________.A.thirty B.thirties C.thirtieth D.thirty’s()2.Who is _______ in your class?

A.slimmer B.the slimmer C.slimmest D.the slimmest()3.She often keeps her feelings to ________.A.her B.herself C.me D.himself

()4.Yao Ming _________ as the “ Walking Great Wall”.A.knows B.known C.is known D.are known()5.He was _______ at the ________ news.A.disappointed;disappointing B.disappointing;disappointed;C.disappointed;disappointed D.disappointing;disappointing;()6.I’m sorry ________ that you are so upset.A.hearing B.heard C.to hear D.to be heard()7.Nothing is _________ than love.A.value B.more value C.valuable D.more valuable()8.I don’t know _____________.A.where the Bank of China was B.where does the Bank of ChinaC.where the Bank of China is D.where the Bank of China does()9.Most get angry ______ his words.A.because B.because ofC.ifD.unless()10.Do you feel like _________ ?

A.go dancing B.going dance C.going dancing D.going to dance()11.I like Enlish ________ it is useful.A.if B.when C.because ofD.because()12.I’ m looking forward to _______ you.A.hear B.hear from C.hearingD.hearing from()13.He is an _________ boy.A.7-year-old B.7-years-old C.8-year-old D.8-years-old

()14.________ is no doubt that China is still a developing country.A.ItB.There C.This D.He

()15.-----_______ do you go home?----Once a week.A How often B.How long C.How soon D.How many()16.Do you have ________ to say?

A.something important B.important something

C.anything importantD.important anything

()17.The more carefully you write, the _______ mistakes you’ll make.A.little B.fewerC.more D.less

()18._______ people will watch the game.A.Three thousand B.Three thousands C.Three thousands of

D.Three thousand of

()19.Would you like to go _______ bus or ______ foot?A.by;by B.by;on C.on;on D.on;by

()20.________ there are beautiful sights, there are buses in Qingdao.A.IfB.Where C.When D.While

二．完形填空（共15小题，每小题1分，共15分）

Telivision has now come to nearly _21_____ family.It has __22____ a very important part in ___23____ life.School children in the U.S.watch TV about twenty-five hours ___24___.Some parents feel that telivision ___25___ good ___26____ their children because it helps __27______ learn about their country and the world.____28____ the help of some education programs, children do __29_____ school.__30_____ parents do not let their children __31_____ TV too much.They say the TV programs are not good and children __32_____ bad things from them.___33____ have invented many things which __34_____ much convenience.Television is one of them.If it __35_____ carefully planned, watching TV can be good for children.()21.A.many B.every C.much D.few

()22.A.became B.becomes C.become D.becoming()23．A.peopleB.people’s C.peoples D.peoples’()24.A.a day B.one day C.one week D.a week()25.A.is B.are C.were D.be()26.A.at B.of C.for D.to

()27.Ａ.theyＢ.themＣ.theirＤ.theirs()28.Ａ.WithＢ.UnderＣ.ByＤ.Below

()29.Ａ.well inＢ.good inＣ.better inＤ.best in()30.Ａ.OtherＢ.The otherＣ.AnotherＤ.Others()31.Ａ.to watchＢ.watchＣ.watchingＤ.watched()32.Ａ.studyＢ.learnＣ.listenＤ.see

()33.Ａ.MenＢ.ManＣ.A manＤ.The man

()34.Ａ.has broughtＢ.broughtＣ.bringＤ.have brought()35.Ａ./Ｂ.will beＣ.wasＤ.is

三、阅读理解（共15小题，每小题2分，共30分）

(A)

The custom in different countries are rather different.If I have dinner with a Chinese host ,he alwaays puts more food onto my plates as soon as I have emptied it.That often

discomfortsme greatly.I have to eat the food even if I don’t want to ,because it is considered bad manners in the West to leave one’s food on the plate.I have aleady noticed that when a Chinese sits at an American’s dinner party,he very often refuses the offer of food or drink though he is in fact still hungry or thirsty.This might be good manners in China,but it is not in the West at all.In the United States,it is impolite to keep asking someone again and again or insist on his accepting something.They will ask for it.If not,they will say ,“No,thanks.”When an American is fed up with beer by the host ,for example ,he might say ,“No,thanks.I will take some diet,just a cola if you have it.”

That is what an American will do.So when you go to the United States,You had better remember the famous saying :When in Rome,do as the Romans do.()36.From the passage ,we can know that the Chinese are usually____.Ａ.very hotＢ.politeＣ.impoliteＤ.cold

()37.When a foreigner has dinner with a Chinese host,he often feels____.Ａ.pleasant Ｂ.uncomfortable Ｃ.satisfiedＤ.happy

()38.Why dose a Chinese often refuse the offer of food or drink at a dinner party?Ａ.He has had enough.Ｂ.He is shy.Ｃ.He is afraid that others will laugh at him.Ｄ.He thinks it’s polite to do that.()39.When an American Wants something to eat or drink at a dinner party?

Ａ.ask for it boldly Ｂ.refuse the offer Ｃ.ask for it directlyＤ.express himself indirectly()40.”When in Rome, do as the Romans do” means _______.Ａ.When you got to Rome, you should act as as the Romans doＢ..When you stay in Rome, you should do as the Romans doＣ..When you are in a new country, you should do as the locals doＤ.Romans can be an example for you.(B)

My name is Betty Sandes.I’m a telephone operator, and I work for a Universal Telephone Company.My job at UTC is an interesting one.I work five days a week, and the hours are from 9 a.m.to 5 p.m.I

do a lot of things—I place long-distance calls for the people,I answer questions and I help people when they are in trouble.Today, for example, I had an interesting experience.At 11 o’clock this morning, I got a call from some man.I don’t know who he was.He was in trouble and I could tell that he was worried about something.He gave me his address and asked me to send ambulance(救护车)right away.I asked him if someone was hurt, but he didn’t answer my question.He told me he needed a doctor at once, so I said I’ d call an ambulance for him.But I still wanted to know what was wrong.Then he said,“Our keys are gone.” I didn’t understand that.Why would he needan ambulance just because he couldn’t find his keys? Then I find out what the trouble was.The man and his wife left the car keys on a coffee table, and later they couldn’t find them.Their little boy Johnny was playing in the room and they thought he swallowed(吞下)them.But before I could help him, he told me he wouldn’t need an ambulance any longer.His wife found the keys in her bag.They were there all the time.()41.Betty works in a _________.A.shopB.companyC.hospitalD.factory()42.she works _________.A.40 hours a weekB.less than 40 hours a weekC.seven days a weekD.from Monday to Saturday()43.The man called Betty because ________.A.he wanted to ask for an ambulanceB.his son was illC.he thought Betty was a doctorD.his son wasn’t ill()44.In fact, his keys _______.A.were on the coffee tableB.were in his wife’s bag

C.were left in the carD.were swallowed by his little son()45.From this passage we can see ______.A.Betty’s job is to place long-distance call only B.Betty likes her work

C.the man’s little son likes playing with the keys D.doctors can help people to find keys(C)

There are many wetlands in China and some of them have become

the world’s important wetlands.The Chinese Yellow Sea Wetlands are among them.They are in Yancheng, Jiangsu Province.They are home for many different kinds of birds and animals.The world’s largest Milu Deer Reserve(自然保护区)is in them.More than 700 milu deer live freely there.There are not many red-crowned cranes in the world, but every winter you can see some in the Red-Crowned Cranes Reservein the Yellow Sea Wetlands.The temperature in the wetlands is usually neither too high nor too low.There is a lot of rain and sunshine, too.They are really good places for wildlife.Offering food and home for some special kinds of animals and birds is not the only reason why we need to protect wetlands.Wetlands are important because they also prevent flood.But some people want to change the wetlands to make more space for farms and buildings.This means there will be less and less space for wildlife.Luckily, more and more people are beginning to realize the importance of wetlands and wildlife.Every year, on February 2nd, many activities are held to tell people more about wetlands.()46.The Chinese Yellow Sea Wetlands are in the _______ of China.A.eastB.southC.westD.north

()47.Usually the weather in the wetlands is ________.A.hotB.pleasantC.coldD.dry

()48.The World Wetlands Day is on _______.A.April 22B.June 25C.February 2ndD.March 22()49.We must protect wetlands because _______.A.they are home for wildlife

B.they can offer food to the animals and birdsC.they can prevent floodD.All of the above

()50.The best title for the passage is ________.A.China’s Wetlands Have All Entered the World’s ListB.Wetlands—Home for Wildlife and Human BeingsC.Special Animals in the Chinese Yellow Sea Wetlands

D.Wetlands—Valuable Resources(珍贵资源)of Land on the Earth

第II卷（非选择题，共35分）

四．用所给词或词组的正确形式填空（每小题1分，共5分）51.She is very _______.(humor)

52.He looks _________ than before.(friend)53.Tell him ______ late.(not come)

54.Your opinion sounds ________.(reason)

55.Would you like ________ a message?(leave)五．补全对话（每空1分，共10分）

56.---Happy New Year！

----The ___________ to you.57.----Have you ever ___________ the Great Wall?----Yes, Ihave been there twice.58.---______________ your sister?-----She is a nurse.59---Happy birthday！----____________.60.----How about going out for a walk?-----______________．

六、阅读表达（每小题1分，满分10分)

Every year thousands of people get hurt or die when they are crossing the road.Most of these people are old people and children.Old people often get hurt or die because they can’t see or hear very well.Children often get hurt or die because they are not careful.They forget to look and listen before they cross

the road.shouldn’t drive too fast.If they drive too fast, it will be very difficult to stop the cars in a very shot time, For the pedestrians(行人), first, they must be careful when they are walking on the road.When we walk across the road, we must walk underpasses(地道)or footbridges(天桥)。If there are no underpasses or footbridges, look right, then look left again.Only when we are sure that the road is clear can we cross it.The right way to cross the road is to walk quickly.It’s not safe to run.If people run across the road, they may fall down.Second, try to help children, old people or the blind people to cross the road.Third, never play in the street.根据短文内容简要回答问题：

61.Who are most easily hurt while crossing the road?

__________________________________________________________________________ 62.How many solutions(解决办法)are mentioned in order to lower traffic accidents?

__________________________________________________________________________ 63.What shouldn’t drivers do in your opinion?

___________________________________________________________________________ 将短文中划线句子译成汉语：

_______________________________________________________________________________ 65.We must stop and look both ways before crossing the road._________________________________________________________________________________

七．书面表达（满分10分）

根据下面的提示，请写写你的兴趣与爱好。我是个学生，有很多兴趣与爱好。1．业余时间看书，放学后打篮球，周六游泳，周日与父母一起爬山。2.平日我对英语和计算机感兴趣，因为它们很有用。3.我最大的爱好是集邮。

4.兴趣与爱好使我的生活丰富多彩。注意：1.语句连贯，不要逐条翻译。2.词数为80词左右。

篇2：临沂高一英语期末试题

第二部分：语言知识及应用（共二节，满分35分）

第一节单项填空（共10小题；每小题1分，满分10分）

21.Word of her mother’s death was a terrible _________ to her and her father.A.honourB.identityC.shockD.attitude

22.Tom had better not_______ the bike, or he’ll not be able to put it together.A.set upB.break downC.sort outD.take apart

23.A student in our school is _____ from school because he often plays computer games.A.goneB.removedC.movedD.beat

24.Possible use should be ______ advanced science and technology.A.made ofB.made upC.made fromD.made sure

25.Mandela was_____________ by his people though he himself didn’t think he had done anything special.A.thought little ofB.thought poorly

C.thought highly ofD.thought highly

26.Houses of this kind are so __________ that they can been seen everywhere.A.usualB.ordinaryC.normalD.common

27.Mistakes don’t just happen;they occur for a reason.Find out the reason and then making the

mistake becomes______________________.A.favorableB.preciousC.essentialD.worthwhile

28.The ship sank quickly but ________ everybody was saved.A.generallyB.naturallyC.fortunatelyD.strongly

29.Pollution problems ______ at the international conference, but no one can answer.A.came upB.raised

C.were risenD.asked

30.That hero who died in the war was so brave that he never ____ ____ to the enemies until death.A.gave upB.gave outC.gave inD.gave away

第二节完形填空（共20小题；每题1分，共20分）

篇3：高一英语期末复习方法漫谈

一、学好英语的根本途径

众多的教育专家对外语学习的方法提出了许多独到的见解。国内知名语言学者王初明教授认为：外语是在交际需求的驱动下，在真实语境的体验里，在交流互动的过程中，在积极情感的配合下，通过长期大量的语言接触学会的。就英语学习而言，大家首先需要创设一个愿景：英语作为一种交际媒介，是助推大家未来学业和事业发展的重要工具。在以多元文化激荡碰撞为特点的当代社会，良好的英语能力是拓展自身国际视野和社会关系、高效获取信息和知识的基本保障。

我们平时学习的关键则在于：尽可能多接触英语。对中国大多数学生而言，这种接触主要通过阅读和听力的方式展开，辅以说和写。需要注意的是，这种接触应当主要是与文末的接触。仅仅通过背诵词汇书的形式学习英语是舍本求末的做法，并不值得提倡。因此，大家务必从文本的阅读中来掌握词汇和短语的用法，对于词汇的掌握尽量结合句子和语境。此外，适当的语言表达活动也是极有必要的。日常的阅读理解题并不能完全满足这方面的需要。一个比较有效的方法就是“读后写”活动，即在阅读文本后针对文章内容进行写作，比如，以甸子的形式回答问题，用一段话概括文章的大意，改写故事的结尾，等等。随着科技的进步，多媒体英语学习资源更加丰富和便捷，视听结合也是大家可以采用的、接触英语的另一方式，这将有助于大家阅读能力和听说能力的提高。

二、学好英语的好习惯

依据以上分析，我们认为以下学习习惯是学好英语的重要保障。

1.结合语境理解词汇和语法

词汇记忆是英语学习的重要任务，一些同学对此颇为犯难。解决的方法很多。由于英语是表音文字，背词汇的首要策略就是结合读音记忆，做到音形结合。在高中阶段，结合语境记忆单词则越发重要。比如，背诵satisfaction，可以结合look back on the past with satisfaction记忆。这样，词语的用法和意义变得更加鲜活，印象更加深刻，也非常有利于日后的提取和运用。

同样，对于语法规则的掌握也要结合大量详实的例句。语法是对自然状态中语言使用规则的一种归纳，语用是第一位的。语法的学习要从例句分析开始，在例句的研读中体会语法规则，考查他们是如何表达意义的。此外，每学到一个新的语法现象，我们可以在大脑中加以“排演”（rehearsal），想象一个表达情境来运用规则。比如，学习虚拟语气时，我们可以利用其规则表达自己对过去的遗憾：If I hadlistened to the teacher's advice，I would havedone a better job in yesterday's test.

2.适时归纳、形成系统

英语语言知识复杂繁多，这就需要我们适时地对所学知识进行总结归纳，按照一定的标准将各种知识组织成一个整体，以利于我们的掌握和运用。这个标准可以是话题、功能、意义、范畴、语法作用、词根词源、甚至仅仅是形式上的相似性等等。比如，从词根词源的角度，我们可以整理一下以consider为核心的词组的用法。

动词搭配1：consider sth./doing sth.（考虑……）

动词搭配2：be considered to do…（被认为做……）

动词搭配3：be considered as…（被认为是……=be regarded as…，be thought of as…）

名词搭配：take…into consideration（考虑到……=take…into account）

形容词搭配1：a considerate hostess（考虑周到的女房东）

形容词搭配2：have a considerable impacton（对……有相当大的、重要的影响）

这样的整理方式一方面结合语境以强化印象，一方面以旧带新、新旧结合，强化新知识的吸收效果。此外，该方法还从词义的角度，将意思相同、搭配相似的词汇知识加以整合。

3.在大量的阅读中体验语言

前面两者是英语学习的辅助方法，而大量的阅读则是通向英语王国的主干道。从现状看，同学们阅读英语的主要方式有课文阅读、试题阅读、报刊阅读、课外读本等，每种阅读方式应采用不同的处理策略。首先，课文是学习英语的主要材料，大家需要全面、深刻地掌握课文所承载的知识和技能。但是课文仅能满足最基本的学习需求，大家在试题阅读中会接触到更多的语篇，这些语篇是巩固知识、训练技能的重要材料。一方面大家需要关注如何快速地判断答案，另一方面还要关注对阅读文本的后期加工，即做完题后对文章的词汇知识、话题信息、叙述方式进行一定的学习。同学们需要在做完题后问问自己：这篇文章有哪些好词好句值得学习？通过文章我到底了解了哪些新的信息？文章是如何组织和呈现信息的？唯有这样，“应试”方可转化为“促学”。

课文和试题语篇通常定位于精读，报刊阅读和课外读本则主要定位于泛读，其目的在于提高阅读的流畅度，在快速的阅读中巩固词汇和语法知识，获取丰富的百科知识。因此，大家可以依据自己的需求个性化地处理泛读文本。做读书笔记是一个很好的方法，可以促进自己对文本的学习和反思。大家可以利用笔记积累一些好词好句，分析阅读内容，记录自己的阅读感悟。

三、科学的考试策略

考试，不同于日常的学习，它是对学习结果的一种考查。因此，考试策略必然不同于平时的学习策略，每种题型都有其相应的解题步骤。了解并熟悉这些步骤是我们必须掌握的重要技能。下面简述一下各种题型常规的处理方式。

听力开始前，大家首先需要快速浏览题目，借以了解听力文本的情境、话题和大意，同时形成听的目的，以便于自己能够专注于缺失的信息。在做单项选择题时，我们需要首先明确题干所表达的意义，根据表达意思的需要选择恰当的词汇。当前单选题的四个选项，用语法正确性角度看往往都能够填入题干，但只有一个符合句意。

与此一脉相承的是处理完形填空时，第一步就是跳过空格快速浏览全文，了解大意，第二步才是具体到每一段、每一句，根据文章的需要选择词汇。遇到难以决定的选项时，应该暂时略过，因为随着文章意思变得更加明晰和具体，你可以拥有更多的线索帮助自己做出选择。

做阅读理解时，大家应首先浏览文章后的问题，明确阅读目的，然后通读全文，了解大意，并在此基础上定位每道题的相关段落和语句，适当加以研读，进而做出选择。

篇4：临沂高一英语期末试题

高一英语试题答案

I卷

1-5 CCACB6-10 ABBCB 11-15 BCBAA 16-20 CCCBC

21-25 DACBB26-30 DCBAB 31-35 CCDCA36-40 ACCDA

41-45 DDACC46-50 ABBDC 51-55 AADAC 56-60 DDCCA

61-63 BCD64-67 CABC 68-71 CBDA 72-75 BCBD

II卷

第一部分

1.social2.provided3.figures4.impressive5.Traditionally 6.occurred

7.frightening 8.argument/arguing9.influential10.disability/disabilities

第二部分1.living, means 2.On, causing 3.resources, out4.palm, spread

5.production, by

Writing :

篇5：临沂高一英语期末试题

A．大量使用含磷洗涤剂会带来白色污染

B．减少使用氟氯代烷的目的是为了减少酸雨

C．大量开采地下水，以满足社会对水的需求

D．北京城区限制冬季燃煤供暖，是因为燃烧化石燃料会产生二氧化硫

2．下列各组物质中按酸、碱、盐、单质的顺序排列的是

A．HCl、Na2CO3、MgCl2、CB．NaHCO3、Ba(OH)

2、NaCl、Zn

C．HNO3、KOH、Na2CO3、O2D．H2SO4、KOH、Na2CO3、SiO

23．胶体和其它分散系（溶液、浊液）的本质区别是

A．分散质粒子的大小B.是不是一种稳定的体系

C．会不会产生丁达尔效应D．粒子有没有带电荷

4．NA表示阿伏加德罗常数，下列说法中正确的是

A．H2SO4的摩尔质量是98

B．1.7g NH3含有的电子数为NA

C．摩尔、质量、时间、长度等是7个基本物理量之一

D．22.4L氧气含有的分子数为NA

5．下列实验操作中错误的是．．

A．分液时，分液漏斗中下层液体从下口放出，上层液体从上口倒出

B．蒸馏时，应使温度计水银球靠近蒸馏烧瓶支管口

C．蒸发氯化钠溶液时，将溶液全部蒸干后，再停止加热

D．过滤时，玻璃棒的末端轻轻靠在三层滤纸处

6．进行化学实验必须注意安全，下列说法不正确的是．．．

A．不慎将酸溅到眼中，应立即用水冲洗，边洗边眨眼睛

B．不慎将浓碱溶液沾到皮肤上，要立即用大量的水冲洗，然后涂上硼酸溶液

C．金属钠着火，应立即用沙子灭火

D．配制浓硫酸时，可先在量筒中加一定体积的水，再在搅拌下慢慢加入浓硫酸

7．现有一块北方盐湖结晶析出的白色晶体．可能含有Na2CO3、Na2SO4、NaCl中的一种或几种，为了证明其成分，加入试剂的正确顺序为

①加水溶解②加入足量的硝酸钡溶液

③加入足量硝酸④加入硝酸银溶液

A．①④②③B．①③②④

C．④②①③D．④③②①

8．下列物质中，既可以与稀盐酸反应，又可以与氢氧化钠溶液反应的是

①Al②AlCl3③Al2O3④NaHCO3⑤Al(OH)

3A．①②③B．①③⑤C．①③④⑤D．①②③④⑤

9．下列各组离子在溶液中可以大量共存的是

－－－A．Ag+、NO3、Cl、Na+B．Na+、Ba2+、Mg2+、NO

3－－－C.OH、K+、HCO3、Ba2+D．H+、CO32、K+、Ca2+

10．下列离子方程式正确的是

A.铁跟盐酸反应：2Fe +6H+ ==2Fe3++3H2↑

－B．氯气与水反应：Cl2 + H2O == 2H++Cl+ClO

－－C．硫酸与氢氧化钡溶液反应：Ba2++OH+H++SO42== BaSO4↓+ H2O

－D．金属钠与水反应：2Na +2H2O ==2Na++2OH+H2↑

11．在反应3S +6KOH ＝ K2SO3 +2K2S +3H2O 中，作还原剂和作氧化剂的硫原子个数比为

A.1:2B.2:1C.1:1D.3:

212．下列“方法”不可以达到“目的”的是

13．下列叙述中正确的是

A．常温下，浓硫酸可以用铁制容器盛放 B．SO2具有漂白性，可以使石蕊溶液褪色

C．硅的化学性质不活泼，在自然界主要以游离态存在 D．氯气具有强还原性，可以用于自来水的杀菌、消毒 14．不需其他试剂就能区别的一组溶液是

A．Na2CO3、NaCl、HCl、KNO3B．KNO3、K2CO3、BaCl2、Na2SO4 C．NaOH、FeCl3、Ba(NO3)

2、KClD．NaCl、BaCl2、CuSO4、NaOH

15．已知：①向KMnO4晶体滴加浓盐酸，产生黄绿色气体；②向FeCl2溶液中通入少量实验①产生的气体，溶液变黄色；③取实验②生成的溶液滴在淀粉KI试纸上，试纸变蓝色(淀粉遇I2变蓝)。下列判断正确的是

－

A．上述实验证明氧化性：MnO4>Cl2 > Fe3+ > I

2B．实验①生成的气体不能使湿润的淀粉KI试纸变蓝 C．上述实验中，共有两个氧化还原反应 D．实验②证明Fe2+既有氧化性又有还原性 16．下列离子检验的方法正确的是

AgNO3溶液－

生成白色沉淀，说明原溶液中有Cl A．某溶液

BaCl2溶液－

B．某溶液生成白色沉淀，说明原溶液中有SO42

NaOH溶液

生成红褐色沉淀，说明原溶液中有Fe3+ C．某溶液

生成无色气体，说明原溶液中有CO32 D．某溶液

17．向MgSO4和Al2(SO4)3的混合溶液中，逐滴加入NaOH溶液。下列图象中，能正确表示上述反应的是(横坐标表示加入NaOH溶液的体积，纵坐标表示反应生成沉淀的质量)

18．a g Fe2O3和Al2O3组成的混合物全部溶于20mL、物质的量浓度为0.05mol／L的硫酸中，反应后向所得溶液中加入10mLNaOH溶液，恰好使Fe3+、Al3+完全沉淀，则氢氧化钠溶液的物质的量浓度为 A．0.1mol／LB．0.2 mol／L C．0.4mol／LD．0.8mol／L

－

稀硫酸

19．(6分)（1）0.5 mol H2O的质量为_______________，其中含有_______________个水分子，共有_______________个原子。

（2）质量都是50g的HCl、NH3、CO2、O2四种气体中，含有分子数目最少的是_______________；在相同温度和相同压强条件下，体积最大的是_______________，体积最小的是_______________。

20．(8分)在实验室里，某同学取一小块金属钠做与水反应的实验。试完成下列问题：

(1)切开的金属钠暴露在空气中，最先观察到的现象是，所发生反应的化学方程式是

(2)将钠投入水中后，钠融化成一个小球，根据这一现象你能得出的结论是：

①。

将一小块钠投入盛有饱和石灰水的烧杯中，不可能观察到的现象是（填编号）。A．有气体生成B．钠融化成小球并在液面上游动C．溶液底部有银白色的金属钙生成D．溶液变浑浊

(3)在钠与水反应过程中，若生成标准状况下224mL的H2，则转移的电子的物质的量为。

(4)根据上述实验过程中钠所发生的有关变化，试说明将金属钠保存在煤油中的目的是。

21．(10分)铝是一种重要金属：

（1）生产中曾用铝热反应（铝与铁的氧化物反应生成氧化铝和铁）焊接钢轨，则铝与磁性氧化铁发生反应的化学方程式为。该反应中氧化剂是，还原剂是，要得到1mol金属铁，需要铝的质量g。（2）铝与NaOH溶液反应的离子方程式为：。在同温同压下，等质量铝投入足量盐酸和NaOH溶液中，产生气体的体积之比为。

三、（本题包括2小题，共22分）22．（11分）用如下图所示装置可以完成一系列实验（图中夹持装置已略去）

请回答下列问题： I．（1）仪器p的名称是_________________，若用装置A由浓硫酸和亚硫酸钠固体制取

（2）写出③中反应的离子方程式_________________________________________。

II．若用装置A由浓盐酸和高锰酸钾制取Cl2气体，装置B中的四处棉花依次做了如下处理：①蘸有FeCl2溶液②蘸有淀粉KI溶液③蘸有石蕊溶液④蘸有品红溶液

（1）写出①处发生反应的离子方程式_______________________________________。（2）在实验过程中，③处能观察到的现象___________________________________。（3）写出装置C中“吸收多余气体”所用的试剂_______________________________。23．（11分）某些化学反应可用下式表示（未配平）：A+B→C+D+H2O 请回答下列问题：

（1）若A、C、D均含有氯元素，且A中氯元素的化合价介于C与D之间，写出该反应的离子方程式：___________________________________________。

（2）若C为氯化钠，D是能使澄清石灰水变浑浊的无味气体，则A与B的组合是（填俗名）：A________________或________________ , B______________________。

（3）若A为紫红色金属，D为无色刺激性气体，请写出符合上式的化学方程式：____________________________________________。

（4）若C、D均为气体且分子具有相同的原子个数比，则符合上式化学方程式是：____________________________________________。

（5）若A为过氧化钠，B为硫酸，则C是____________，D是_______________。

1.D2.C3..A4..B5.C6.D7.B8.C9..B10..D11..A12.C13..A14.D15..A16.C17.D18..B 19．（6分）（1）9g，3.0110，9.0310

（2）CO2，NH3，CO2（每空1分，共6分）20．（8分）（1）钠块表面由银白色变为暗灰色（或钠块表面变暗），4Na + O2 ==2Na2O（每空1分，共2分）

（2）①钠与水反应放出热量②钠的熔点低，C（每空1分，共3分）（3）0.02mol（2分）

（4）隔绝钠与空气中的氧气和水蒸气的接触（1分）21．（10分）

（1）8Al + 3Fe3O44Al2O3 + 9Fe（2分）

（2）Fe3O4 或磁性氧化铁或四氧化三铁（1分）Al或铝（1分）24（2分）

－－