Unit8 过关练习（精选5篇）
Unit8 过关练习 第1篇
太仓市实验小学四年级备课组 2013年12月
Unit8过关练习
一、单词
头发_______眼睛______鼻子______嘴巴______小的_______
他的_________她的_______短的，矮的______ 耳朵_____国王_______瘦的_______高的________ 雪人________胖的_________机器人________动物园 ________斑马_________ 跳________说话 ________
二、词组和句子
我们的洋娃娃____________________她的短头发_____________________ 他的大嘴巴__________________小眼睛_____________________
长长的鼻子 _____________________一个瘦瘦的男孩_____________________ 又矮又胖_________________两只大肥猫 _____________________ 五个高个女人_________________一个酷酷的机器人________________ 在雨中_________________在动物园_____________________ 和我一起吃香蕉__________________堆雪人_________________
他的短尾巴__________________你好吗？___________________
三、按要求写单词
1.it(复数)_______2.sandwich(复数)_______3.fat(反义词)________
4.long(反义词)________5.new(反义词)_________6.for(同音词)________
7.snowman(复数形式)________ 8.has(原形)_______ 9.let’s(完整形式)________
四、适当形式填空
1.Look at ______(they)beautiful skirts.2._______(this)puppets are very cool.3.Her hair ______(be)long and nice.4.He would like __________(have)lunch with ______(I).五、按要求改写句子
1.My mouth and nose are small.(改为一般疑问句并作否定回答)
---______ _______ mouth and nose small ?---No, _____ ______.2.I have some noodles，too.(否定句)
I _______ have _____noodles, _________.3.It’s a cute and fat monkey.(改为感叹句)
________ _______ cute and fat monkey!划线部分提问)
_______ _______the socks?
5.tall, women, two, rain, in, the, meet(.)(连词成句)
__________________________________________________________
6.thin, but, is, he, he, tall, is(,.)(连词成句)
___________________________________________________________
Unit8 过关练习 第2篇
13-14新目标八下Unit8同步练习Ⅰ
Ⅰ.根据句意及汉语提示，填入恰当的单词。
1.Lei Feng will live(永远)in our hearts.2.Mr Wang came back to China after studying(在国外).3.He is studying the 当代的)history of China.4.She became interested in the new(乐队).5.She was a woman of great 美丽).Ⅱ.根据句意及首字母提示，补全单词。
1.Jay Chou(周杰伦)is my favorite pstar.2.Many football fwill go to Brazil to watch the 2014 FIFA World Cup.3.Our English teacher i the new classmate Linda to us just now.4.The Diaoyu Islands bto China!
5.I can only remember the first l of that song.Ⅲ.用括号内所给单词的适当形式填空。
1.What time did you(actual)leave?
2.They didn’t achieve great 3.The foreign visitors will travel in some(south)states of the USA.4.Wow!The house is always full of(laugh).5.The rich man gave away(million)of dollars to those poor areas.Ⅳ.根据汉语句子完成英语句子，每空一词。
1.这首乐曲让你感觉怎么样？
does this piece of music make you?
2.彼得过去常跟父母争吵。
Peter 3.马克还没去过长城。
Mark 4.你最喜欢哪种音乐？
Whatmusic do you like best?
5.我们班共有45人。
the studentsforty-five in our class.参考答案：
Ⅰ.1.forever 2.abroad 3.modern 4.band 5.beauty
Ⅱ.1.pop 2.fans 3.introduced 4.belong 5.line
Ⅲ.1.actually 2.success 3.southern 4.laughter 5.millions
Ⅳ.1.How;feel 2.used to argue 3.hasn’t been to 4.kind of 5.The number of;is
高中一册(上)Unit8练习 第3篇
1. Can you tell me ____?
A. what’s the meaning of PRCB. what’s does PRC mean
C. what PRC stands forD. what does PRC stand for
2. More patients ____ in hospital this year than last year.
A. treatedB. have treated
C. had been treatedD. have been treated
3. ____ students are required to take part in the boat race.
A. Ten strong young ChineseB. Ten Chinese strong young
C. Chinese ten young strongD. Young strong ten Chinese
4. Which one ____ take, the red one or the green one?
A. had you betterB. would you like
C. would you ratherD. feel like
5. ——We’re going to have a sports meeting.
——How many of you will ____?
A. join itB. join inC. take part inD. take part
6. ——Don’t all speak at once!
——One ____, please.
A. at a timeB. at timesC. at one timeD. at no time
7. He glanced over at her, ____ that though she was tiny, she seemedvery well put together.
A. notingB. notedC. to noteD. having noted
8. ____ so much beer will make you ____.
A. It is; drunkB. Be drinking; drink
C. Drink; drinkD. Drinking; drunk
9. I have worked with children before, so I know what ____ in my newjob.
A. expectedB. to expectC. to be expectedD. expects
10. A remote-controlled bomb exploded outside a hotel yesterday, ____ atleast 12 people.
A. having been injuredB. having injured
C. injuringD. injured
11. ——I’ve never found a better job.
——____.
A. I don’t think soB. Too bad
C. CongratulationsD. Don’t worry
12. Nobody but doctors or nurses and those ____ by Dr Hu ____ toenter the patient’s room.
A. invited; is allowedB. are invited; are allowed
C. being invited; allowedD. invited; are allowed
13. With the weather getting colder, visitors from Australia spent their____ days in Beijing.
A. a few lastB. last fewC. fewD. last a few
14. I’d rather you did some housework when you are free, but you ____.
A. don’tB. didn’tC. wouldn’tD. weren’t
15. Don’t lose heart. If you work hard, you’ll ____ a successful electronic engineer.
A. turnB. learnC. haveD. make
Ⅱ.完形填空
One of the most important events in the modern Olympic Games is the Marathon(马拉松) race. The race __1__ one of the great events in Greek history.
In 490 B.C. about 10,000 Greeks fought __2__ the Persian army at a place called Marathon. It is __3__ that the Persians were ten times as __4__ as the Greeks. But, __5__ the brave attack of the Greeks, the Persians were badly beaten and __6__ away from the plain of Marathon. When the Persians had run away, a soldier, __7__ was the most famous __8__ in Athens, was __9__ to carry the good news to the city __10__ full speed.
Although he had fought through the battle and received many wounds, the soldier at once started off toward the __11__ city. It was twenty-six and a quarter miles __12__ the plain of Marathon to the Marketplace of Athens, __13__ the elders of Athens had gathered __14__ for news. He ran and ran __15__ hills and across plains. As he went on, his lips became dry and his breathing hard. But the thought of the __16__ of the people of Athens __17__ hearing the news, and he ran harder than ever.
The elders of Athens heard a great shout and saw a soldier staggering(蹒跚) toward them. “Rejoice!Rejoice!We won!”gasped the soldier, and fell down __18__.
In __19__ of this noble soldier and athlete, we have in the modern Olympic Games the Marathon race, __20__ the athletes run this same distance.
1. A. came fromB. came aboutC. came outD. came round
2. A. inB. against C. forD. with
3. A. knownB. reported C. told D. said
4. A. manyB. few C. little D. much
5. A. inB. with C. by D. because
6. A. takenB. made C. got D. driven
7. A. whichB. whom C. whose D. who
8. A. playerB. runner C. soldier D. officer
9. A. advisedB. asked C. ordered D. allowed
10. A. in B. by C. on D. at
11. A. far B. distant C. away D. off
12. A. to B. from C. in D. at
13. A. where B. there C. here D. when
14. A. waiting B. calling C. asking D. looking
15. A. above B. across C. through D. over
16. A. sadness B. joy C. anger D. surprise
17. A. on B. in C. from D. with
18. A. dead B. death C. died D. dying
19. A. remember B. front C. honour D. hope
20. A. by which B. from which C. through whichD. in which
Ⅲ.阅读理解
(A)
Why is setting goals important? Because goals can help you do, be, and experience everything you want in life. Instead of just letting life happen to you, goals allow yourself to make your life happen.
Successful and happy people have a vision of how their life should be and they set lots of goals(both short-term and long-range) to help them reach their aims(目标). By setting goals you are taking control of(控制) your life. It’s like having a map to show you where you want to go. Think of it this way. There are two drivers. One has a destination in mind (his goal) which is laid out for him on a map. He can drive straight there without any wasted time or wrong turns. The other driver has no goal or destination or map. He starts off at the same time from the same place as the first driver, but he drives aimlessly around, never getting anywhere, just using up gas and oil. Which driver do you want to be?
Winners in life set goals and follow through with them. Winners decide what they want in life and then get there by making plans and setting goals. Unsuccessful people just let life happen by accident. Goals aren’t difficult to set, and they aren’t difficult to reach. It’s up to you to find out what your goals really are. You are the one who must decide what to do and in what direction to aim your life.
Research tells us that when we write a goal down we are more likely to, get it. Written goals can be reviewed regularly(经常地), and have more power. Like a contract(合同) with yourself, they are harder to neglect(忽视) or forget.
1. What is the main idea of this passage? ____.
A. Success is possible only when a person has clearly set his goals
B. Winners never stop their efforts for success
C. Failure always comes along with the people who give up easily
D. As long as you set goals, you will succeed
2. The author gave the example of two drivers to show ____.
A. the cleverness of the first driver
B. the importance of having a map and right direction
C. the foolishness of the second driver
D. the importance of setting goals
(B)
EVENTS（赛事）
Bicycle tour（旅行） and race:
A bike tour and race will be held on August 26 and 27（Sat．& Sun.）．At 5:30 am, the riders will leave Tian’anmen Square and ride the first 35 kilometres as a training leg． Then the next 55 kilometre leg, from Yanjiao to Jixian, will be the first competitive part of the tour, the riders and their bikes will then be taken from Jixian to Changli．
The second racing leg of the tour will be from Changli to the seaside of Nandaihe, covering a distance of 20 kilometres． Saturday night includes the stay at Nandaihe and supper． Sunday morning is free for play at the seaside． At noon all the people and their bikes will be taken back to Beijing．
Cost: 200 yuan
Telephone: 64675027
Brazilian footballers
The Brazilian Football Club will play Beijing Guo’an Team at the Workers Stadium on August 26． The club has four national team players．Also coming is 1994 US World Cup Star Romario who has promised to play for at least 45 minutes．
Ticket price: 60, 100, 150 yuan
Time/Date: 4:30pm, August 26 (Sat)
Telephone: 65012372
Rock Climbing:
The Third National Rock Climbing competition will be held on August 26—27 at the Huairou Mountain-climbing Training. More than 10 teams from Beijing, Wuhan, Dalian, Jilin and other places will take part in it． A Japanese team will give an exhibition climbing．
Free for spectators（观众）．
Take a long-distance bus from Dongzhimen to Huairou．
Time/Dates: 9—12am, August 26 and 27
Telephone: 67143177, 67144850, Wang Zhenghua
1． The main purpose of announcing the above events is to give informationabout ____．
A． visiting teams
B． famous players
C． prices to pay for the sports events
D. things to do for the weekend
2． The underlined word “leg” in “Bicycle tour and race” probably means____．
A． raceB． practice
C． part of the trainingD． part of the tour
3． If you want to find something to do for Saturday afternoon, whichtelephone number will you call? ____．
A． 64675027B． 67143177C． 65012372D． 67144850
4. If you take part in the bike tour, you will ride for ____．
A. 35 kilometresB. 55 kilometres
C. 75 kilometresD. 110 kilometres
(C)
The Winter Olympics is also called the White Olympics． At this time， many colorful stamps are published to mark the great games． The first stamps marking the opening came out on January 25，1932 in the United States for the 3rd White Olympics． From then on， publishing stamps during the White Olympics became a rule．
During the 4th Winter Olympic Games a group of stamps were published in Germany in November, 1936． The five rings of Olympics were drawn on the front of the sportswear． It was the first time that the rings appeared on the stamps of the White Olympics．
In the 1950’s， the stamps of this kind became more colorful． When the White Olympics came， the host countries（东道国） as well as the non-host countries published stamps to mark those games． China also published four stamps in February 1980， when the Chinese sportsmen began to take part in the White Olympics．
Japan is the only Asian country that has ever held the White Olympics． Altogether 14，500 million stamps were sold to raise money for this sports meeting．
Different kinds of sports were drawn on these small stamps． People can enjoy the beauty of the wonderful movements of some sportsmen．
1． The White Olympics and the Winter Olympics ____．
A． are the same thingB． are different games
C． are not held in winterD． are held in summer
2． The world made it a rule to publish stamps to mark the great worldgames ____．
A． after the year 1936B． after the 3rd White Olympics
C． before the 3rd White OlympicsD． before the year 1932
3． The White Olympics is held ____.
A． every two yearsB． every three years
C． every four yearsD． every five years
4． Which of the following is true？____．
A． Only the host countries can publish stamps to mark those games
B． Only the non-host countries can publish stamps to mark those games
C． All the countries can publish stamps to mark those games
D． Japan can’t publish stamps to mark those games
5． What may appear on the stamps of the White Olympics？____．
A． BasketballB． Table tennisC． FootballD． Skating
(D)
With only about 1,000 pandas left in the world, China is desperately trying to clone (克隆) the animal and save the endangered species(物种). That’s a move similar to what a Texas A & M University researchers have been undertaking for the past five years in a project called “Noah’s Ark”(诺亚方舟).
Noah’s Ark is aimed at collecting eggs, embryos(胚胎), semen and DNA of endangered animals and storing them in liquid nitrogen(氮). If certain species should become extinct, Dr. Duane Kraemer, a professor in Texas A & M’s College of Veterinary Medicine, says there would be enough of the basic building blocks to reintroduce the species in the future.
It is estimated(估计) that as many as 2,000 speciesof animals will become extinct in over 100 years. The panda, native only to China, is in danger of becoming extinct in the next 25 years.
This week, Chinese scientists said they grew an embryo by introducing cells from a dead female panda into the egg cells of a Japanese white rabbit. They are now trying to implant the embryo into a host animal.
The entire procedure(过程) could take from three to five years to complete.
“The nuclear transfer (核子移植) of one species to another is not easy, and the lack of available (capable of being used) panda eggs could be a major problem,” Kraemer believes. “They will probably have to do several hundred transfers to result in one pregnancy (having a baby). It takes a long time and it’s difficult, but this could be groundbreaking science if it works. They are certainly not putting any live pandas at risk, so it is worth the effort.” adds Kraemer, who is one of the leaders of the Project at Texas A & M, the first-ever attempt at cloning a dog.
“They are trying to do something that’s never been done, and this is very similar to our work in Noah’s Ark. We’re both trying to save animals that face extinction. I certainly appreciate their effort and there’s a lot we can learn from what they are attempting to do. It’s a research that is very much needed.”
1. According to Professor Kraemer, the major problem in cloning pandaswould be the lack of ____.
A. available panda eggsB. host animals
C. qualified researchersD. enough money
2. The aim of “Noah’s Ark” project is to ____.
A. make efforts to clone the endangered pandas
B. save endangered animals from dying out
C. collect DNA of endangered animals to study
D. transfer the nuclear of one animal to another
3. From the passage we know that ____.
A. Kraemer and his team have succeeded in cloning a dog
B. scientists try to implant a panda’s egg into a rabbit
C. Kraemer will work with Chinese scientists in clone researches
D. about two thousand species will probably die out in a century
4. The best title for the passage may be ____.
A. China’s Success in Pandas Cloning
B. The First Cloned Panda in the World
C. Exploring the Possibility to Clone Pandas
D. China’s Success in Pandas Cloning
5. What does the underlined word “extinct” in the second paragraphmean?____.
A. AliveB. Active
C. The state of dying outD. Fewer
(E)
Recently， a professor of philosophy(哲学) in the United States has written a book called Money and the Meaning of Life． He has discovered that how we deal with money in our day-to-day life has more meaning than we usually think． One of the exercises he asked his students to do is to keep a record of every penny they spend for a week． From the way they spend their money， they can see what they really value in life．
He says our relations(关系) with others often become clearly defined(定义) when money enters the picture． You might have a wonderful friendship with somebody and you think that you are very good friends． But you will know him only when you ask him to lend you some money． If he does， it brings to the relationship that seems stronger than ever before． Or it can suddenly weaken the relationship if he doesn’t． This person may say that he has a certain feeling， but if it is not carried out in the money world， there is something less real about it．
Since money is so important to us， we consider those who possess a lot of it to be very important. The author(作者) interviewed(采访) some millionaires in researching his book.
Question：What is the most surprising thing you have discovered about being rich， because you are a self-made man?
Answer：The most surprising thing is why people give me so much respect． I am nothing． I don’t know much. All I am is rich.
People just have an idea of making more and more money， but what is it for? How much do I need for any given purposes in my life? In this book， the professor uncovered an important need in modern society; to bring back the idea that money is an instrument rather than an end． Money plays an important role in the material world， but expecting money to give happiness maybe miss the meaning of life.
1. What can we learn about the millionaire from his answer in theinterview? ____.
A． He doesn’t feel that he is well educated
B． He doesn’t think that he is a very important person
C. He doesn’t think that being rich deserves(应得到) so much attention
D． He doesn’t consider himself to be very successful
2. According to the first paragraph， people have not realized ____.
A． how important money is in their day-to-day life
B． how one spends money shows what is important to him
C． that money is more important than their philosophy of life
D. that their understanding of life is more important than money
3. What does the American professor of philosophy want to explain inhis book? ____.
A． Money is an endB. Money is a means
C． Money is everythingD． Money is unimportant
4. The author seems to believe that asking your friend to lend you somemoney ____.
A． is a good way to test your friendship
B． will do harm to your friend
C. will strengthen your friend
D． is a good way to break off your friendship
5. Which of the following might the author disagree? ____.
A. Money is important in modern society
B. The meaning of life doesn’t completely lie in money
C. Wealth(财富) will surely bring the owner happiness
D. Happiness is not necessarily the result of wealth
Ⅳ.短文改错
My favourite sport was football. I am a member 1.____
of our school football team. We practise three time 2.____
every week and often see football matches on TV 3.____
together. Playing football not only make us grow 4.____
up tall and strong but also gives a sense of fair 5.____
play and team spirit. We will always remember when 6.____
we play for the team instead of ourselves. Also, a sport 7.____
teaches us the important of obedience(服从). Each 8.____
player must obey the captain, that is the leader of 9.____
the team. You must not break the rules too often if we want to10.____
win the game.
Ⅴ.书面表达
假如你是李华，你校高三同学正在开展一场讨论，主题是高三学生要不要参加体育锻炼？请你根据下面所提供的信息，给某英文报社写一封信，介绍讨论情况。
注意：1.信的开头已为你写好。
2.词数：100左右。
生词：增强体质build one’s body;有效effective;复习revision
Dear Editor:
I’m writing you to tell you about a discussion we’ve had about whether students of Senior 3 should take physical exercise.
……
Yours,
Li Hua
文言《短文两篇》过关练习 第4篇
一、课文过关
什么是神话
神话：关于神仙或神化的古代英雄的故事，是古代人民对自然现象和社会生活的一种天真的解释和美丽的向往。所以，神话作品通常具有超现实想象、夸张的浪漫主义特点。夸父逐日
1．字词过关 夸父与日逐走（竞跑，赛跑），入日（追赶到太阳落下的地方）；（想要）得饮，饮于 黄河）、渭；河渭不足，北饮大泽（湖，传说其大纵横千
里，在雁门山北）。未 至，道渴而死。弃其杖，化为邓林（桃林）。.2．你怎么看待夸父这一人物?
夸父是一个有胆量有决心，目标远大，气魄非凡，意志坚强的英雄人物。所以，现在人们常以“夸父逐日” “夸父追日” “逐日” 这些词比喻人有宏大的志向或巨大的力量和气魄。
3．你如何理解这则神话的主题?通过神话，表现夸父无比的英雄气概，反映了古代人民探索自然、征服大自然的强烈愿望和顽强意志。公共怒触不周山
昔（从前）者共工与颛顼争为帝，怒而触（碰，撞）不周之山，天柱折，地维绝（断）。天倾西北，故（所以）于此，于是）；地不满积水）尘埃归焉。
2.了解文章的内容之后，在你的心目中，共工是一个怎样的人？
勇敢，坚强，敢于挑战权威，具有大无畏的英雄气概。
3.夸父和共工共同的特点是什么？
（1）夸父和共工都很勇敢、坚强，敢于挑战权威。
（2）夸父和共工改造山河。夸父死后弃其杖，化为桃林，为后人止渴；共
工为了广大人民的利益，兴修水利，发展农耕，不惜牺牲自己的生命。他们都是神话传说中的华夏民族的英雄。
二、拓展练习
精卫填海
北二百里，曰发鸠之山，其上多枯木，有鸟焉，其状如乌，文首，白喙，赤足，名曰“精卫”，其鸣自詨。是炎帝之少女，名曰女娃。女娃游于东海，溺而不反，故为精卫，常衔西山之木石，以堙于东海。漳水出焉，东流注于河。
1、解释下列带颜色的词语：
⑴北二百里（向北）⑵曰发鸠之山（叫）⑶其状如乌（像）⑷其鸣自詨（呼唤自己的名字）⑸溺而不反（溺水）⑺以 堙没）
2、翻译下面的句子。
（1）其状如乌，文首，白喙，赤足，名曰“精卫”。
它的形状像乌鸦，头部有花纹，白色的嘴，红色的脚，名叫“精卫”
（2）常衔西山之木石，以堙于东海。漳水出焉，东流注于河。
经常口衔西山上的树枝和石块，用来填塞东海。浊漳河就发源于发鸠山，向东流去，注入黄河。
3、什么是精卫填海的精神？
精卫填海的精神就是中华民族刚健有
网络工程师过关练习567 第5篇
一、选择题。
1．以下描述中错误的是_B___。
A）交换式局域网是相对于共享式局域网而言的，它的核心部件是交换机。
B）虚拟局域网的工作组通常在一个网段上
C）虚拟局域网可以基于IP广播组来定义
D）IEEE802局域网参考模型将OSI的数据链路层分为逻辑链路控制子层和介质访问控制子层
2．以下关于综合布线技术特征的描述中错误的是_B___。
A）综合布线是一种模块化的、灵活性极高的建筑物内或建筑群之间的信息传输通道
B）综合布线由不同系列和规格的部件组成，其中包括传输介质、路由器与网卡
C）综合布线包括建筑物外部网络或电信线路的连接点与应用系统设备之间的所有线缆及相关的连接部件
D）综合布线既能使语音、数据、图像设备和交换设备与其他信息管理系统彼此相连，也能使这些设备与外部相连接
3．综合布线的首要特点是__C__
A）开放性
B）灵活性
C）兼容性
D）可靠性
4．适用于配置标准中等的场合综合布线系统的等级是__B__。
A）基本型
B）增强型
C）综合型
D）中等型
5．以下关于增强型综合布线系统的配置描述中错误的是__D__。
A）每个工作区有2个或以上信息插座
B）每个工作区的配线电缆为2条4对双绞电缆
C）采用夹接式或插接交接硬件
D）每个工作区的干线电缆至少有1对双绞线
6．以下关于以太网物理层协议的描述中错误的是__A__。
传统以太网的物理层标准的命名方法是：IEEE802.3xType-yName。其中
A）x表示数据传输速率，单位为Gbps
B）y表示网段的最大长度，单位为100m
C）Type表示传输方式是基带还是频带
D）Name表示局域网的名称
7．具有网络管理功能的独立集线器是_B___。
A）堆叠式集线器
B）基础集线
C）级联的多集线器 http://ks.examda.com
D）以上均不是
8．以下关于100BASE-TX特征的描述中，错误的是__D__。
A）100BASE-TX4使用2对5类非屏蔽双绞线
B）非屏蔽双绞线最大长度为100m
C）一对双绞线用于发送，一对双绞线用于接收
D）数据传输采用半双工方式
9．以下关于网桥的描述中错误的是__C__。
A）网桥工作在数据链路层
B）网桥最重要的维护工作是构建和维护MAC地址表
C）使用网桥实现数据链路层的互联时，互联网络的数据链路层和物理层协议必须相同
D）目前，网桥仍需要解决同种标准中的不同传输速率的局域网在MAC层互联的问题
10．下面关于透明网桥的描述中错误的是__A__。
A）透明网桥刚刚连接到局域网时，其MAC地址表不是空的，端口会为其分配缺省值
B）透明网桥对于互联局域网的各结点是“透明”的C）透明网桥是即插即用的
D）透明网桥一般用于两个MAC层协议相同的网段之间的互联
11．以下不是干线子系统设计中线缆选择的依据的是__C__。
A）信息类型
B）传输速率
C）电缆长度
D）信息的带宽和容量
12．虚拟局域网建立在上__D__。
A）虚拟技术
B）共享技术
C）A和D
D）交换技术
13．在互连的网络设备中，交换机与网桥相比，区别在于__A__。
A）交换机连接的网段比网桥的多
B）速度
C）速度慢
D）无区别
14．如果局域网的拓扑结构是，则局域网中任何一个节点出现故障都不会影响整个网络的工作___A_。
A）总线型结构
B）星型结构
C）环型结构
D）树型结构
15．网桥与中继器相比能提供更好的网络性能，原因是_A___。
A）网桥能分析数据包并只在需要的端口重发这些数据包
B）网桥使用了更快速的硬件
C）网桥忽略了坏的输入信号
D）网桥能分析数据包并只在需要的端口重发这些数据包
二、填空题
1．交换式局域网的核心部件是【1】。交换机
2．综合布线系统同传统的布线相比较，其优越性主要表现在：【2】、开放型、灵活性、先进性、经济性与可靠性。兼容性
3．【3】是综合布线系统的神经中枢。干线子系统
4．IEEE802.310BASE-T以太网，表示传输速率为【4】、【5】传输、使用双绞线的以太网。10Mb/s基带
5．根据生成树协议，每个网段会有一个指定端口，这个端口是【6】的。除此之外的该网段上的所有端口都处于阻塞状态。激活
三、分析题
1．请描述生成树协议的工作原理。
网桥依据网桥表进行转发，网桥表由MAC地址和接口两部分组成，网桥必须获取MAC地址和接口的对应关系。若不位于同一个物理网段上的两个工作站传输数据帧，网桥查找网桥表，若找到目的工作站的MAC地址对应的网桥端口，从该端口转发数据帧；否则，网桥会把这个数据帧向除发送该帧的源端口外的其它所有端口进行转发。
在很多实际的网络应用中，有可能网桥会反复转发同一个帧，为了避免出现环状结构，透明网桥使用了生成树算法。根据生成树算法制定的协议称为生成树协议。它的工作原理如下：
根网桥是从网络中选择的一个作为属性拓扑的树根；最短路径开销是一个网桥到根网桥的最短路径；指定网桥负责转发到根网桥的数据；对于每个非根网桥，都需要从它的端口中选出一个到达根网桥路径最短的端口作为根端口，负责将本网段的数据发送到根网桥，这个端口叫做指定端口，一个网段中只有一个指定端口；生成树协议为每一个网段选择一个指定端口，那么其他的端口均处于阻塞状态。
构造生成树首先要选择一个网桥作为生成树的根。实现方法是选择ID最小的网桥作为根网桥。接着，按照根到吗诶个网桥的最短路径来构造生成树。如果某个网桥或局域网失败，则重新计算。该算法的结果是建立起从每个局域网到根网桥的惟一路径。该过程由生成树算法软件自动产生；拓扑结构变化时将更新计算生成树。
2．网络互连就是通过网络互连设备将分布在不同地理位置的网络和设备相连接，组成更大规模的互联网络。网络互连设备包括中继器、网桥、路由器和网关等。
(1)试述中继器和网桥的工作原理。
中继器工作在物理层，把一个接口输入的比特简单广播到所有其他接口；网桥工作在链路层，把一个接口的帧转发到通向目的地的另一个接口。
(2)如果一台运行OSI协议的主机要和另外一台运行TCP/IP协议的主机通信，应该采用什么网络互连设备？为什么？
必须采用多协议路由器（现在的说法）或网间连接器（gateway,书上的说法）；因为涉及到两种协议的转换。
六
一、选择题
1．以下关于局域网交换机技术特征的描述中正确的是__C___。
A）局域网交换机建立和维护一个表示源MAC地址与交换机端口对应关系的交换表
B）局域网交换机根据进入端口数据帧中的MAC地址，转发数据帧
C）局域网交换机工作在数据链路层和网络层，是一种典型的网络互联设备
D）局域网交换机在发送结点所在的交换机端口（源端口）和接收结点所在的交换机端口（目的端口）之间建立虚连接
2．配置VLAN有多种方法，下面不是配置VLAN的方法的是___C__。
A）把交换机端口指定给某个VLAN
B）把MAC地址指定给某个VLAN
C）根据路由设备来划分VLAN
D）根据上层协议来划分VLAN
3．交换式局域网从根本上改变了“共享介质”的工作方式，它可以通过局域网交换机支持端口之间的多个并发连接。因此，交换式局域网可以增加网络带宽、改善局域网性能与__A___。
A）服务质量
B）网络监控
C）存储管理
D）网络拓扑
4．建立虚拟局域网的主要原因是___B__。
A）将服务器和工作站分离
B）使广播流量最小化
C）增加广播流量的广播能力
D）提供网段交换能力
5．同一个VLAN中的两台主机__B___。
A）必须连接在同一台交换机上
B）可以跨越多台交换机
C）必须连接在同一集线器上
D）可以跨越多台路由器
6．下面关于VLAN的语句中，正确的是__D___。
A）虚拟局域网中继协议VTP用于在路由器之间交换不同VLAN的信息
B）为了抑制广播风暴，不同的VLAN之间必须用网桥分割
C）交换机的初始状态是工作在VTP服务器模式，这样可以把配置信息广播给其他交换机
D）一台计算机可以属于多个VLAN，即它可以访问多个VLAN，也可以被多个VLAN访问
7．以下关于虚拟局域网中继（VLANTrunk）的描述中，错误的是__C___。
A）VLANTrunk是在交换机与交换机之间、交换机与路由器之间存在的物理链路上传输多个VLAN信息的一种技术。
B）VLANTrunk的标准机制是帧标签。
C）在交换设备之间实现Trunk功能，VLAN协议可以不同。
D）目前常用的vlan协议有ISL、IEEE802.10和国际标准IEEE802.1Q。
8．虚拟局域网中继协议（VTP）有三种工作模式，即VTPServer、VTPClient和VTPTransparent。以下关于这三种工作模式的叙述中，不正确的是__D___。
A）VTPServer可以建立、删除和修改VLAN B
B）VTPClient不能建立、删除或修改VLAN
C）VTPTransparent不从VTPServer学习VLAN的配置信息
D）VTPTransparent不可以设置VL 9．CSM网络管理界面可以完成以下哪些基本管理功能？__C___。
Ⅰ.速率设置Ⅱ.查看交换机运行状态Ⅲ.VLAN配置Ⅳ.端口配置
A）Ⅰ、Ⅱ与Ⅲ
B）Ⅰ、Ⅱ与Ⅳ
C）Ⅱ、Ⅲ与Ⅳ
D）Ⅰ、Ⅲ与Ⅳ
10．以下的选项中，不是使用浏览器对交换机进行配置的必备条件的是__D___。
A）在用于配置的计算机和被管理的交换机上都已经配置好了IP地址
B）被管理交换机必须支持HTTP服务，并已启动该服务
C）在用于管理的计算机上，必须安装有支持Java的Web浏览器
D）在被管理的交换机上，需拥有FTP的用户账户和密码
11．命令“spanning-treevlan
A）Catalyst3500系统下启用STP
B）Catalyst6500系统下启用STP
C）Catalyst3500系统下配置生成树优先级
D）上述说法都
12．如果要彻底退出交换机的配置模式，输入的命令是__D___。
A）exit
B）noconfig-mode
C）Ctrl+c
D）Ctrl+z
13．下面不是交换机的交换结构的是__B___。
A）软件执行交换结构
B）双总线交换结构
C）矩阵交换结构
D）共享存储器交换结构
14．下列哪个选项不是基于第三层协议类型或地址划分VLAN？__C___。
A）按TCP/IP协议的IP地址划分VLAN
B）按DECNET划分VLAN
C）基于MAC地址划分VLAN
D）按逻辑地址划分VLAN
15．以下关于STP的描述中错误的是__B___。
A）STP是一个二层链路管理协议。目前应用最广泛的STP标准是IEEE802.1D。
B）在STP工作过程中，被阻塞的端口不是一个激活的端口。
C）STP运行在交换机和网桥设备上。
D）在STP的处理过程中，交换机和网桥是有区别的。
二、填空题
1．在使用共享存储器交换结构的交换机中，数据帧的交换功能是通过【1】实现的。
共享存储器
2．快速转发交换模式在交换机接收到帧中【2】个字节的目的地址后便立即转发数据帧。
3．按交换机工作在OSI参考模型的层次分类，交换机可以分为工作在【3】的二层交换机、工作在【4】的第三层交换机和工作在【5】的第四层交换机和多层交换机。
数据链路层网络层传输层
4．交换机端口通信方式的缺省值是【6】。自适应
5．在大中型交换机中，显示交换表的命令是【7】。showcandynamic
三、分析题
1．通常VLAN有静态和动态两种划分方法，这两种方法分别是如何实现的？各有什么特点？
（1）在静态划分方法中，网络管理员将交换机端口静态地分配给某一个VLAN，这是经常使用的一种配置方式。静态划分VLAN非常简单有效、安全、易监控管理，是一种通用的VLAN划分方法。几乎所有的交换机都支持这种方法。
（2）在动态划分方法中，管理员必须先建立一个正确的VLAN管理数据库，例如输入要连接的网络设备的MAC地址及相应的VLAN号，这样，当网络设备接到交换机端口时，交换机自动把这个网络设备所连接的端口分配给相应的VLAN。动态VLAN的配置可以基于网络设备的MAC地址、IP.地址、应用的协议来实现。动态VLAN一般通过管理软件来进行管理。
动态划分VLAN的优点是在新增用户或用户移动时，可以减少配线间中的管理工作，但是数据库的建立和维护较复杂。此外，在使用基于MAC地址划分VLAN时，一个交换机端口有可能属于多个VLAN，在一个端口上必须接收多个VLAN的广播信息，势必会造成端口的拥挤。
基于第三层协议类型或地址划分VLAN的方法的优点是有利于组成基于应用的VLAN。
2．当某个公司需要按部门划分网络，而一个部门的计算机可能分散在不同的地方，而且不能由一个联网设备连接。此外，部门间不需要通信。则：
【问题1】在划分网络时对交换机有何要求？
采取VLAN方式将不同部分划分成不同的局域网。为保证不同交换机上的相同VLAN上的计算机能够通信，要求相互连接的交换机支持Trunk。
【问题2】是否需要具备三层交换功能的交换机？
由于各VLAN间不需要通信，不需要具备三层交换功能的交换机。
七
一、选择题
1．以下不是使用telnet配置路由器的必备条件的是___A____。
A）在网络上必须配备一台计算机作为telnetServer
B）作为模拟终端的计算机与路由器都必须与网络连通，它们之间能相互通信
C）计算机必须有访问路由器的权限
D）路由器必须预先配置好远程登录的密码
2．以下关于TFTP的描述中错误的是___B___。
A）TFTP不支持客户端与服务器之间复杂的交互过程
B）TFTP有权限控制
C）作为TFTPServer的可以是运行Windows系统的个人计算机，也可以是运行Unix系统的服务器
D）在使用TFTP配置路由器前，在TFTP服务器上，必须安装并运行TFTPServer软件。
3．以下关于loopback接口配置的叙述中，错误的是___B___。
A）在路由器上，loopback接口没有与其他网络结点连接的物理链路
B）loopback可以作为OSPF和RIP的routerid
C）在每台路由器上都配置有loopback接口，它永远处于激活状态
D）loopback接口号的有效值为0~2147483647
4．POS目前可以提供多种传输速率的接口，下面不是POS可以提供的接口传输速率的是__B____。
A）150Mbps
B）622Mbps
C）2.5Gbps
D）10Gbps
5．下面可信度最高的路由协议是___A___。
A）静态路由
B）OSPF
C）RIP
D）外部BGP
6．以下关于路由器结构的描述中，错误的是___D___。
A）路由器有不同的接口类型，可以连接不同标准的网络
B）路由器软件主要有路由器的操作系统IOS组成
C）IOS是运行在Cisco网络设备上的操作系统软件，用于控制和实现路由器的全部功能
D）保存在闪存中的数据在关机或路由器重启时会丢失
7．以下不是路由器配置超级用户口令的命令的是___D___。
A）Router(config)#enablepassword7phy123
B）Router(config)#enablesecretphy123
C）Router(config)#enablepasswordphy123
D）Router(config-line)#password7zzz307
8．路由器的访问控制列表（ACL）的作用是___B___。
A）ACL可以监控交换的字节数
B）ACL提供路由过滤功能
C）ACL可以检测网络病毒
D）ACL可以提高网络的利用率
9．以下关于OSPF协议的描述中，最准确的是___A___。
A）OSPF协议根据链路状态法计算最佳路由
B）OSPF协议是用于自治系统之间的外部网关协议
C）OSPF协议不能根据网络通信情况动态地改变路由
D）OSPF协议只能适用于小型网络
10．OSPF和RIP都是Intemet中的路由协议，与RIP相比，OSPF有许多优点，但不是OSPF的优点___D___。
A）没有跳步数的限制
B）更快的收敛性
C）扩大了网络
D）更低的路由开销
11．以下关于DHCP的描述中错误的是___B___。
A）DHCP采用客户机/服务器工作模式
B）在网络上，只允许配置一台DHCP服务器
C）DHCP服务器可以是一台路由器或第三层交换机
D）Cisco允许在一台服务器上建立多个地址池
12．在因特网中，IP数据报的传输需要经由源主机和中途路由器到达目的主机，通常___D___。
A）源主机和中途路由器都知道IP数据报到达目的主机需要经过的完整路径
B）源主机知道IP数据报到达目的主机需要经过的完整路径，而中途路由器不知道
C）源主机不知道IP数据报到达目的主机需要经过的完整路径，而中途路由器知道
D）源主机和中途路由器都不知道IP数据报到达目的主机需要经过的完整路径
13．以下关于OSPF的描述中不正确的是___D___。
A）与RIP相比较，OSPF的路由寻径的开销更大
B）OSPF在进行路由表构造时，使用的是Dijkstra算法
考试大论坛
C）OSPF具有路由选择速度快、收敛性好，支持精确度量等特点
D）OSPF是应用于自治系统之间的“外部网关协议”
14．下面对RIP的描述中，错误的是___B___。
A）RIP限制最大跳数是15，即，在一条链路上最多有15个路由器
B）RIP使用广泛、配置简单，支持CIDR、VLSM及连续子网
C）RIP的路由更新时间为30秒，路由收敛速度慢
D）RIP通常使用单播方式发送路由更新信息
15．以下的访问控制列表中，禁止所有Telnet访问子网10.10.1.0/24__C___。
A）access-list15denytelnetany10.10.1.00.0.0.255eq23
B）access-list115denyudpany10.10.1.0eqtelnet
C）access-list115denytcpany10.10.1.00.0.0.255eq23
D）access-list15denyudpany10.10.1.0255.255.255.0eq23
二、填空题
1．路由表指出的是路由器转发数据的最佳路由。路由表的内容主要包括：【1】、下一跳路由器地址和目的端口，还有缺省路由等信息。目的网络地址
2．如果在一个路由器中有两条指定某网络的路由信息，路由信息源一个来自OSPF，一个来自RIP，则路由器会选择【2】给定的路由信息。OSPF
3．路由器的每个接口必须配置惟一的【3】。IP地址
4．异步串行接口的接口类型是【4】，它主要用于连接【5】设备，为网络用户提供拨号上网服务。AsyncModem
5．RIP限制路由器的最大跳数为【6】，定时刷新路由的周期为【7】秒。1530
三、分析题
1．某单位的网络要配置一台DHCP服务器，为网络内部的计算机自动分配IP地址。在考虑DHCP服务器时，回答以下问题：
【问题1】客户机是如何从DHCP服务器得到动态IP的？
当DHCP服务器接收到一个DHCP请求时，首先查询IP地址池，为DHCP客户分配一个可用的IP地址（空闲、未分配的IP地址）；然后将分配给DHCP客户的IP地址以及子网掩码、缺省路由、域名和域名服务器的IP地址等信息一并返回给DHCP客户。当DHCP客户端的系统关闭后，一般就将地址释放，DHCP服务器自动将该IP地址收回，待以后分配给其他客户的DHCP请求。
【问题2】被路由器隔离的2个子网能否公用一台DHCP服务器？
不能
【问题3】配置DHCP服务器应具备什么条件？
DHCP服务器本身应具有静态的IP地址和子网掩码，此外还应具一组可供分配的动态IP地址。
【问题4】用户看到自己申请到的本机IP地址、重新向DHCP服务器申请IP及释放IP的命令各是什么？
