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东大19秋学期《大学英语(二)》在线平时作业3答案

The traditional approach with complex problems is to break them down into samller, more easily managed problems.

A、to dealing

B、in dealing

C、dealing

D、to deal


参考答案：A

How would you __________ a case of pneumonia?

A. treat

B. cure

C. manage

D. deal


参考答案：A

根据下面的文字资料回答 71～75 题In the following essay，each blank has fourchoices．Choose the best answer and write down on thean，swer sheet．

Microwave communication uses（ 1 ）frequency radio waves that travel instraighdine sthroughthe air．Because the waves cannot（ 2 ）with the curvature of the earth，they can be （ 3 ）onlyover short distance．Thus，microwave is a good（ 4 ）for sending data between bulldingsin a city or on a large college campus．For longer distances，the waves must berelayed by means of“dishes”or（ 5 ）．These can be installed on towers，highbuildings，and mountain tops．

第71题：文中（ 1 ）处正确的答案是（ ）。

A．high

B．10w

C．1ong

D．short


正确答案：A

微波通信利用在空气中直线传播的高频无线电波通信，因为电磁波不能随着地球表面的曲度而弯曲，所以只能用来在短距离内传输。这样，微波就是一种在大楼之间或在大的大学校园里用来发送数据的优良介质。如果要进行更长距离的传输，电磁波必须通过蝶行卫星天线或普通天线中转。这些天线能够被安装在塔顶、高楼和山顶上。

根据下面的文字资料回答 71～75 题 In the following essay．each blank has four choices．Choose the best answer and write down on the answer sheet．

Spread spectrum simply means that data is sent in（ 1 ）pieces over a number of the discrete frequencies available for use at any time in the specified range．Devices using（ 2 ） spread spectrum(DSSS)communicate by splitting each（ 3 ）of data into several parts and sending them concurrently on different（ 4 ），DSSS uses a lot of the available（ 5 ），about 22 megahertz(MHz)．

第71题：文中（ 1 ）处正确的答案是（ ）。

A．small

B．high

C．low

D．long


正确答案：A
简单地来说，扩频就是在一个可以随时使用的特定频率范围内，把数据用小块在大量不连续的频率上同时发送。使用直序扩频
图6网卡的简单框架
的设备相互之间通信是通过把每个字节的数据分成几个部分在不同的频率上同时传送。直序扩频使用了大约22 Mb的有效带宽。

根据下面的文字资料回答 71～75 题 In the following essay，each blank has four choices．Choose the most suitable one from the four choices and write down in the answer sheet．A（ 1 ）is basically an end point of a communication link between two applications.Sockets that extend over a network connect two or more applications running on separate computer sat tached to the network．Asocket（ 2 ）twoaddresses：（ 3 ）．Sockets providea （ 4 ）communication channel between one or more systems.There are stream and datagram sockets separately using TCP and（ 5 ）．

第6题：文中（ 1 ）处正确的答案是（ ）。

A．program

B．UDP

C．socket

D．TCP


正确答案：C
Socket是两个应用之间的联系接口。Socket使网络中不同的计算机之间的应用能够联系在一起。一个Socket有两个地址：端口号和IP地址。Socket提供了在多个系统中全双工通信的方式。TCP在Socket传递的是字符流，而UDP传递的是数据报。

19春学期大学英语(二)在线平时作业3试卷总分:100 得分:100一、单选题 (共 25 道试题,共 50 分)1.Tom said to the guests, Help _ to some meat.A.youselvesB.youselfC.yourselvesD.yourself答案:C2.the traditional approach _ with complex problems is to break them down into smaller, more easily managed problems.A.to dealingB.in dealingC.dealingD.to deal答案:A3.The answer must _ in finding alternative sources of energy.A.lieB.layC.existD.contain答案:A4.You can take a _ calculator with you in the exam.A.electronicB.electrifiedC.electricalD.electric答案:A5.Please dont forget _to me, will you?A.writingB.writesC.writeD.to write答案:D6.-Will you please tell John to come to my office? - _.A.Yes, I doB.Thank youC.Ill be glad toD.Ill be glad答案:C7._ the earth to be flat, many feared that Columbus would fall off the edge of the earth.A.having believedB.believingC.believedD.being believed答案:B8.Prices of these books _ from 5 dollars to 10 dollars.A.limitedB.fliedC.rangedD.sold答案:C9.The dictionary defines a workaholic_ “ a person obsessively addicted to work.”A.asB.forC.thatD.like答案:A10.I don’t approve _ wasting time.A.withB.toC.ofD.at答案:C11._ , I suppose I’m frightened of failing.A.In other wayB.In the wayC.In a wayD.On the way答案:C12.I am happy you finally got the chance, cause I don’t want you to miss on it.A.outB.offC.inD./答案:A13.When there are small children around, it is necessary to put bottles of pills out of _.A.reachB.handC.holdD.place答案:A14.What is the correct _for obtaining a refund?A.stepsB.stepC.proceduresD.procedure答案:D15.She devoted all her energies to _ care of homeless people.A.takingB.takenC.takeD.be taken答案:A16.We need to find the best _ to this problem.A.methodB.wayC.approachD.methodology答案:C17.Hi, welcome back! Did you have a nice trip?_A.Oh, fantastic! Fresh air, and sunshine every day.B.Come on, I’ve got lots of fun.C.By the way, I don’t like Saturdays.D.Well, I’ll look forward to your phone call.答案:A18.To _the hero who died in order to save a drowning boy, a large number of residents came to take part in his funeral.A.rememberB.recallC.memorizeD.honor答案:D19._ fitness means having a strong healthy body.A.PsychologicalB.PhysiologicalC.PhysicalD.Physic答案:C20.It took him ten years to _ his publishing businesses.A.make upB.look upC.keep upD.build up答案:D21.They would inform him _ any progress they had made.A.toB.ofC.forD./答案:B22.It was at 7:30 P.M._ Hellen and Barry dated at the gate of the school yesterday.A.thatB.sinceC.beforeD.after答案:A23.The car would not stop so that it into the wall.A.rammedB.hitC.crashedD.bumped答案:C24.he knows better than _ with his boss.A.to quarrelB.quarrelingC.quarrelD.quarrel答案:A25.John swore his honor that he will never let out the secret.A.withB.toC.inD.by答案:D二、完型填空 (共 2 道试题,共 30 分)40.There was once a millionaire who loved money than anything else in the world. He didn’t know exactly how much he had, so he took on a little girl to # all his money for him. It # the little girl six days to count all t

请选择(15)处最佳答案（ ）。

A．given up

B．got over

C．carried on

D．put down


正确答案：D
答案：D
解析：本题考查固定搭配。get down to的意思是归因于，符合句意。而give up to的意思是让给，get over to的意思是让某人明白某事，carry on的意思是继续开展，坚持，均不合题意。故答案为D。

关于break语句使用说法正确的是()。

A、break语句不能在循环结构中使用

B、break语句能在循环结构中使用

C、break语句可以在while循环中出现多次

D、break语句可以在while循环中只能出现一次

此题为多项选择题。请帮忙给出正确答案和分析，谢谢!


答案：B

解析：break语句只能出现在for和while的循环语句中，所以B正确。

break语句可以在循环中出现多次，但是只会执行一个就会跳出循环语句。

Jeff managed to answer the question ( ) the given time.

A、within

B、till

C、by

D、at


参考答案：A

请将正确答案填在第28处。

A．“die”

B．“death”

C．“sleep”

D．“down”


正确答案：B
动词meant的宾语要用名词，down是副词，die是动词,sleep也是动词。只有death是名词。

It can be concluded from the passage that ______.

A. we should try our best to prevent disablement

B. we must take a proper attitude towards the disabled

C. the able-bodied people will never fully understand the disabled

D. both physical and mental barriers are hard to break down


正确答案：B

45．答案为B。根据最后一段最后一句It is almost impossible for the able-bodied to fully appreciate what the severely disabled go through，so it is important to draw attention to these barriers and show that it is the individual person and their ability，not their disability，which counts．作出该项选择。选项A、C和D与原文不符。

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