一、选择题
下列各题A、B、C、D四个选项中，只有一个选项是正确的，请将正确选项涂写在答题卡相应位置上，答在试卷上不得分。
(1)我国互联网界曾发生所谓3Q大战，根据你的了解它们发生在哪两个公司之间?
A.3Com与百度之间
B.3Com与腾讯之间
C.奇虎360与百度之间
D.奇虎360与腾讯之间
(2)我国早期批量生产的计算机是
A.103计算机
B.104计算机
C.DJS-130计算机
D.PDP-130计算机
(3)关于客户机的描述中，错误的是
A.智能手机不能用作客户机
B.平板电脑能用作客户机
C.笔记本电脑能用作客户机
D.高端台式机能用作客户机
(4)关于笔记本电脑配置的描述中，正确的是
A.必须用Intel双核奔腾芯片
B.通常有多个USB接口
C.内存不超过1GB
D.一般用nVIDIA网卡
(5)关于软件的描述中，错误的是
A.系统软件比应用软件更贴近硬件
B.软件由程序代码与相关文档组成
C.共享软件都是自由软件
D.数据库软件是应用软件
(6)关于多媒体的描述中，正确的是
A.熵编码属于有损压缩
B.源编码属于无损压缩
C.有损压缩的压缩比小
D.无损压缩是可逆的
(7)关于OSI参考模型的描述中，正确的是
A.OSI参考模型由IETF制定
B.按功能可以分为7个层次
C.OSI的含义是操作系统互连
D.详细定义每层的实现技术
(8)在TCP/IP参考模型中，实现可靠到端通信的层次是
A.数据链路层
B.物理层
C.网络层
D.传输层
(9)以太网帧的地址字段使用的是
A.MAC地址
B.IP地址
C.域名
D.端口号
(10)关于无线自组网的描述中，错误的是
A.是一种对等结构的无线网络
B.需要基站的支持
C.在军事领域中有较多的应用
D.可用WiFi技术实现联网
(11)IEEE802.15标准针对的网络是
A.无线个人区域网
B.无线传感器网
C.无线宽带城域网
D.无线局域网
(12)HTTP使用的著名端口号是
A.21
B.25
C.80
D.110
(13)关于交换式局域网的描述中，正确的是
A.采用共享介质
B.核心设备是交换机
C.只支持半双工通信
D.只支持1GpBs速率
(14)数据传输速率为5×106bps，可以记为
A.5Gbps
B.5kbps
C.5Tbps
D.5Mbps
(15)在邮件服务器之间实现邮件投递的协议是
A.IMAP
B.TFTP
C.SMTP
D.RARP
(16)关于千兆以太网的描述中，错误的是：
A.只支持光纤作为传输介质
B.数据传输速率是1Gbps
C.没有改变以太网帧的结构
D.协议标准时IEEE 802.3z
(17)在网络协议中，定义控制信息格式的是：
A.层次
B.接口
C.时序
D.语法
(18)BitTorent支持的P2P应用类型是
A.即时通信
B. 文件共享
C.协同工作
D.流媒体传输
(19)关于OSI参考模型各层功能的描述中，正确的是：
A.应用层实现介质访问控制
B.物理层实现域名解析
C.网络层实现路由选择
D.会话层定义各种网络服务
(20)如果交换机的最大带宽为8.4Gbps，具有2个千兆的全双工端口，则其百兆的全双工端口数量最大为：
A.22
B.21
C.20
D.19
(21)100BASE-TX标准支持的传输介质是：
A.单模光纤
B.红外线
C.同轴电缆
D.双绞线
(22)关于网络拓扑结构的描述中，错误的是：
A.星型拓扑存在中心结点
B.网状拓扑是无规则的拓扑
C.环型拓扑传输延时不确定
D.广域网大多采用网状拓扑
(23)跳频扩频的英文缩写是：
A.WLAN
B.VLAN
C.DSSS
D.FHSS
(24)关于操作系统的描述中，错误的是：
A.通过文件表查找文件
B.文件句柄是文件的识别依据
C.内存管理通过文件系统实现
D.基本驱动程序固化在BIOS中
(25)关于进城与线程的描述中，正确的是：
A.进城与线程是相同的概念
B.进程需要存储空间
C.一个线程可包含多个进程
D.线程不需要分时器切换
(26)关于Unix操作系统的描述中，错误的是:
A.属于多用户操作系统
B.由内核与外壳组成
C.内核的操作原语对硬件不起作用
D.主要用C语言写成
(27)关于Linux操作系统的描述中，正确的是：
A.内核直接取自Unix
B.为Unix的变种
C.图形界面只有KDE
D.符合POSIX标准
(28)关于WindowsServer 2008操作系统的描述中，错误的是：
A.系统集成IIS服务
B.虚拟化采用Hypervisor软件层
C.系统体现了动态IT技术的趋势
D.采用基于模拟器的虚拟化技术
(29)关于Internet的描述中，正确的是：
A.Internet是一个信息资源网
B.Internet是一个内部网
C.中继器是Internet中的主要设备
D.IPX是Internet使用的主要协议
(30)关于ADSL接入的描述中，正确的是：
A.数据传输需要进行调制解调
B.传输介质采用同轴电缆
C.只支持TCP/IP网络
D.上行速率通常大于下行速率
(31)UDP服务的特点之一为：
A.不可靠
B.Qos
C.面向连接
D.有序
(32)关于IP抵制的描述中，错误的是：
A.IP地址可以代替MAC地址
B.一条物理连接可以绑定多个IP地址
C.IP地址携带地理位置信息
D.IP地址由32位二进制数组成
(33)如果一台主机的IP地址为201.23.34.162，子网掩码为255.255.255.192，那么它所处的网络(包括子网)为：
A.201.23.34.128
B.201.23.34.192
C.201.23.34.224
D.201.23.34.240
(34)在以太网中，使用ARP协议的目的是：
A.获取端口和IP地址的对应关系
B.获取IP地址和MAC地址的对应关系
C.获取MAC地址和端口的对应关系
D.获取IP地址和域名的对应关系
(35)在对IP数据报进行分片时，分片报头与源报文报头一定相同的字段为：
A.源IP 地址
B.头部校验和
C.标志
D.总长度
(36)下表为一路由器的路由表，如果该路由器接收到源地址为10.2.56.79，目的IP地址为10.1.1.28的IP数据报，那么它将把该数据报投递到：
子网掩码要到达的网络下一路由器
255.255.0.0 10.2.0.0 直接投递
255.255.0.0 10.3.0.0 直接投递
255.255.0.0 10.1.0.0 10.2.0.5
255.255.0.0 10.4.0.0 10.3.0.7
A.10.3.1.28
B.10.2.56.79
C.10.3.0.7
D.10.2.0.5
(37)在发送IP数据报时，如果用户想记录该IP数据报穿过互联网的路径，那么可以使用的IP数据报选项为：
A.源路由选项
B.记录路由选项
C.源抑制选项
D.重定向选项
(38)在一个大型互联网中，动态刷新路由器的路由表可以使用的协议为：
A.TELNET
B.OSPF
C.SIP
D.IGMP
(39)IPv6地址的长度为：
A.32位
B.48位
C.64位
D.128位
(40)关于Internet域名服务系统的描述中，正确的是：
A.域名解析的两种方式为重复解析和反复解析
B.域名解析可以从根域名服务器开始
C.“非权威”的解析结果是由解析器造成的
D.使用高速缓冲技术可提高域名解析的准确性
(41)关于FTP服务的描述中，错误的是：
A.数据连接分为主动模式与被动模式
B.控制连接分为递归模式与反复模式
C.数据连接通常使用TCP的20端口
D.控制连接通常使用TCP的21端口
(42)在发送哪条POP3命令之后，系统对指定的邮件做“删除”标记?
A.DELE
B. QUIT
C.LIST
D.RETR
二、填空题
请将每个空的正确答案写在答题卡【1】-【20】序号位置上，答在试卷上不得分。
(1)高速缓存的哈弗结构是把指令与【1】分别存储。
(2)软件生命周期包括计划阶段、开发阶段和【2】阶段。
(3)在OSI参考模型中，与TCP /IP参考模型的互联层对应的是【3】。
(4)计算机网络是以能相互【4】资源方式互联起来的自治计算机的集合。
(5)根据路由选择策略，网桥分为【5】和源路由网桥。
(6)在以太网帧结构中，帧前定界符为【6】(请用二进制数表示)。
(7)支持单模光纤的千兆以太网的物理层标准是【7】。
(8)在数据传输系统中，表示二进制数据传输出错概率的是【8】。
(9)Novell公司曾经红极一时的网络操作系统称为【9】。
(10)Winows Server 2003的基本管理单位是【10】。
(11)如果某主机需要向子网掩码为255.255.0.0的185.93.12.0网络进行直接广播，那么它应使用的目的IP地址为【11】。
(12)为了保护自己的计算机免受不安全软件的危害，IE通常将Internet划分为Internet区域、本地【12】区域、可信站点区域和受限站点区域。
(13)IPv6的数据报的基本头部长度为【13】字节。
(14)在域名系统中，用于标识配件交换机的对象类型为【14】。
(15)TELNET服务器通常在TCP的【15】端口慎听客户端的连接请求。
(16)配置管理功能包括资源清单管理、资源开通和【16】开通。
(17)故障影响到有质量保证承诺的业务时，故障管理要与【17】管理互通，以赔偿用户的损失。
(18)百度的超链分析技术基于网页质量的排序和【18】的排序。
(19)在VOIP的系统中，【19】负责用户的注册与管理。
(20)IPv4组播地址以4位二进制开始，它们是【20】。
一、选择题答案
01-05 DBCBC 06-10 DBDAB 11-15 ACBDC 16-20 ADBCA
21-25 DCDCB 26-30 CDDAA 31-35AAABA 36-40 DBBDB
41-42 BA
二、填空题答案
01、数据02、运行03、网络层04、共享05、透明
06、10101011 07、1000BASE-LX 08、误码率09、NetWare 10、域11、185.93.255.25512、Intranet 13、4014、MX15、23 16、业务17、计费18、相关性19、网守20、1110
全国大学生计算机等级考试资料(3) 时间：2009-12-14 08:34:00 来源：作者： 201．在Word中，将一页内容分成两页显示，可以选择______命令。 A、“插入”菜单项中的“页码” B、“插入”菜单项中的“分隔符” C、“格式”菜单项中的“字体” D、“插入”菜单项中的“自动图文集” 203．在Word中，可以通过"表格"菜单项中的______命令平均分配各行（列）。 A、表格属性 B、转换 C、选定 D、自动调整 204．在Word中，如果快捷工具栏中没有“打开”、“保存”快捷按钮，用户可在______菜单项下设置。 A、插入 B、格式 C、视图 D、工具 205．在Word中，使用“复制”操作的快捷键是______。 A、Ctrl + C B、Ctrl + S C、Ctrl + V D、Ctrl + X 206．在Word中，下述关于分栏操作的说法，正确的是______。 A、设置的各栏宽度和间距与页面宽度无关 B、可以将指定的段落分成指定宽度的两栏 C、任何视图下均可看到分栏效果 D、栏与栏之间不可以设置分隔线 207．在Word中，想将Word文档直接转存为记事本能处理的文本文件，应在“另存为”对话框中选择______保存类型。 A、纯文本（*.txt） B、Word文档（*.doc） C、RTF格式（*.rtf） D、WPS文档（*.wps） 208．在Word中，用户可以通过______菜单项中的“索引和目录”命令快速方便地制作文档的目录。 A、插入 B、编辑 C、格式 D、视图 209．在Word中，字数统计功能放在______菜单项中。 A、插入 B、工具 C、格式 D、视图 210．在Word中使用键盘操作进行分页的操作方法是______。
英语三级考试试卷真题 及答案 -CAL-FENGHAI-(2020YEAR-YICAI)_JINGBIAN
Part Ⅰ Dialogue Completion (15 points) Directions: There are 15 short incomplete dialogues in this part, each followed by 4 choices marked A, B, C, D. Choose the best one to complete the dialogue and mark your answer on the ANSWER SHEET with a single line through the center. 1. Rita: You said we could discuss a problem you had when you first came to the U．S． Would you like to tell me your problem Anna:___A________ A.Yes ,of course. B.Thanks, I’d love to . C.Well, as you said. D.I don’t think so. 2. Jack:Hello, this is Jack London. May I speak to Dr．Lee Receptionist:I’m sorry.She’s with a patient._____B____ A. What’s up B.May I help you C.Could you wait D.Why do you want to see her 3.Peter:Hello.I’m Peter Smith.Aren’t you new here Wendy: _____A_____ I transferred from UCLA. A.No,I once was here. B.I’m Wendy Chan. C.I don’t know you. D.No,fist time here 4.Tim:Hey,Larry!Good to see you!____A______ Larry:Terrible!I just found out I failed my math test,and I studied all night for it! A.How’s it going B.How do you do C.How are you D.How about you 5. Wife:How about picking up some soft drinks on your way home Husband:___D____ Anything else A.I’d love to . B.I don’t mind. C.My pleasure. D.No problem. 6. Sian: Let’s eat out tonight.I don’t feel like cooking. Vincent:___A____ What do you fancy? Sian:I think Japanese food would make a nice change. A.Me too. B. Do you C.Well, why not D. So what 7. Kato:Shall we have Chinese or American food Mori:_____D_________ Kato:There is a good steak house around the corner. A.You have nothing in mind B.It doesn’t matter. C.I have no choice! D.Whatever you say! 8.Terri: How are things going with you and your roommate? Jon:Not very well. We’re _____A___,but I end up feeding him three meals a day. A.supposed to divide the house work B. supposed to share the groceries C. on good terms D. kind of broke 9.Mike:Shall I pick you up at 5 or 6 Joei:____A____ Mike:OK,I will pick you up at 5. A.It doesn’t make any difference. B. It’s fine with me. C.Like you said. D.Nothing bothers me. 10.Stacey:Sue,can you drive Jane and me to the doctor on Monday Sue:Sure._____A____ when you need help.
2018年全国计算机等级考试一级考试试题库 0401) 下列关于世界上第一台电子计算机ENIAC的叙述中，错误的是 A)它是1946年在美国诞生的 B)它主要采用电子管和继电器 C)它是首次采用存储程序控制使计算机自动工作 D)它主要用于弹道计算 答案：C 0402) 一个字长为8位的无符号二进制整数能表示的十进制数值范围是 A)0-256 B)0-255 C)1-256 D)1-255 答案：B 0403) 二进制数1001001转换成十进制数是 A)72 B)71 C)75 D)73 答案：D 0404) 十进制数90转换成无符号二进制数是 A)1011010 B)1101010 C)1011110 D)1011100 答案：A 0405) 标准ASCII码用7位二进制位表示一个字符的编码，其不同的编码共有 A)127个 B)128个 C)256个 D)254个 答案：B 0406) 根据国标GB2312-80的规定，总计有各类符号和一、二级汉字编码 A)7145个 B)7445个 C)3008个 D)3755个 答案：B 0407) 运算器的主要功能是进行 A)算术运算 B)逻辑运算 C)加法运算 D)算术和逻辑运算 答案：D 0408) 下列各存储器中，存取速度最快的是 A)CD-ROM
C)软盘 D)硬盘 答案：B 0409) 假设某台式计算机的内存储器容量为256MB，硬盘容量为20GB。硬盘的容量是内存容量的 A)40倍 B)60倍 C)80倍 D)100倍 答案：C 0410) 在外部设备中，扫描仪属于 A)输出设备 B)存储设备 C)输入设备 D)特殊设备 答案：C 0411) 计算机能直接识别的语言是 A)高级程序语言 B)机器语言 C)汇编语言 D)C++语言 答案：B 0412) 下列关于计算机病毒的叙述中，错误的是 A)计算机病毒具有潜伏性 B)计算机病毒具有传染性 C)感染过计算机病毒的计算机具有对该病毒的免疫性 D)计算机病毒是一个特殊的寄生程序 答案：C 0413) Internet网中不同网络和不同计算机相互通讯的基础是 A)ATM B)TCP/IP C)Novell D)X.25 答案：B 0414) 已知一汉字的国标码是5E38，其内码应是 A)DEB8 B)DE38 C)5EB8 D)7E58 答案：A 0415) 已知三个字符为：a、X和5，按它们的ASCII码值升序排序，结果是 A)5,a,X B)a,5,X C)X,a,5 D)5,X,a 答案：D 0416) 度量计算机运算速度常用的单位是
公共英语等级考试三级(PETS3)学习笔记（六） Unit 21 Services(1) Dialogues /monologues: 1、 Hotel in London or in England specially, will ask for a credit card or a confirmation which will guarantee that your room is held, basically all night or for late arrival. 2、 This could be a precise place for you. 关于：precise 与 accurate 是否有区别? accurate，correct，delicate，exact，precise都含有一定的"正确,精确"之意 accurate 准确的，精确的，指某人或某事不仅不出错，而且与事实无出入，强调准确性 correct 正确的，指某人或某事合乎事实或公认的标准或规则，没有错误 delicate 精美、精细的、雅致的 exact 确切的、精确的,语气较accurate强,指某人或某事数量或质量完全符合事实或标准,而且在细致末节上也丝毫不差 precise 精密的,指具有高度的精确性和准确性,强调范围界限的鲜明性或细节的精密,有时略带"吹毛求疵"的贬义 3、 Art-house. Art-house：艺术电影院 指放映不属于商业主流电影的电影院。艺术电影院放映的影片，重视电影本身的品质，较不注重商业吸引力，如当代重要导演的影片、独立制片影片、影史的经典作品，及发行有限的前卫及实验电影。亦称 Art theater。 4、 Your restaurant specializes in hamburgers and chicken, right? specializes in：擅长于，专攻。 5、 As an unadvertised special, you can have a trip to the salad bar with your order for only a dollar more. 作为一个末做广告的特价餐，您可以多出一美元随意的在沙拉吧里定购。
2002年6月浙江省大学英语三级考试试卷 Part I Listening Comprehension Section A Directions: In this section, you will hear 10 short conversations. At the end of each conversation, a question will be asked about what was said. You will hear the conversation and the question only once. After each question there will be a pause. During the pause, you will read the four choices marked A, B, C and D. You should choose the best answer. 1. A) Warm B) Hot. C) Mild. D) Cold. 2. A) In an office B) In a library C) In a classroom D) In a bookstore 3. A) By sea. B) By train. C) By bus. D) By air. 4. A) He is doubtful about the one-bedroom apartment. B) He’s prepared to pay more for the bigger apartment. 、 C) There is a big difference between the apartments. D) The one-bedroom apartment is better as it is cheaper. 5. A) The train may arrive but the woman is not sure. B) The train will probably arrive at 10:45. C) The train broke down and will not arrive. D) The will probably arrive at 9:45 6. A) She will help him next week. B) She has finished her work quickly. C) She had her work done a week ago. D) She did her work carelessly. 7. A) She likes it as well as the man. B) She takes her vacations in autumn. C) She prefers summer. D) She doesn’t like it. 8. A) He’ll play the game. # B) He won’t watch the game standing. C) He’ll watch the game on TV. D) He has little knowledge of the game. 9. A) To learn another language. B) To practice the dialogues. C) To give up French. D) To give up practicing. 10. A) The woman should take her time. B) They are supposed to leave in twenty minutes. C) Alice is arriving in twenty minutes D) They are already late for the appointment. Section B Directions: In this section, you will hear 3 short passages. The passages will be read 】 twice. At the end of each passage, you will hear some questions, which will be read only once. After you hear a question, you must choose the
Part B Directions: Read the texts from a magazine article in which five people talked about the importance of doing exercise. For questions 61 to 65, match the name of each person to one qf the statements (A to G)given below. Mark your answers on ANSWER SHEET 1. Patricia: I went by Inter-Rail this summer with a group of friends from university. I think it worked very well, although a few of them said they'd never do it again—I guess it wasn r t quite like they thought it was going to be~not as comfortable probably. We usually slept in hostels or on the train so we were completely exhausted but 1 think we had a great time. Next year V 11 see if 1 can perhaps visit fewer places and not get so worn out. Davis: I traveled about 6,000 kilometres in four weeks with a couple of friends from college. We spent weeks planning out the route and all the places we were intending to go to. Would I do it again? Well, f d have to think carefully about that but, on the whole the trip was good for me as I was the official translator, which was great as V m normally a bit shy of talking to people 1 don't know. On the last night of the holiday they treated me to a really expensive meal for helping them out. It was terrific! Jenise: Well, I guess I had a good time now when I look back on it, and I saw eight countries in four weeks. Everything went well but I think that from now on 1' 11 probably choose to do something else. I want to meet local people rather than just people who work for the train service ! I did get to know quite a few other English and American students and they were great but it didn* t do much for my French and Gennan. Nigel: I think it's definitely the best way of getting around Europe even though you have to spend money on the Inter-Rail ticket before you leave. I have a friend who hitch-hikes and he says that's the only way to travel because it's free and you see more interesting places. But I knew I could jump on a train wherever I wanted in the morning, while he would still be standing in the rain hoping for a lift. So all in all I think I got the better deal, especially as 1 could take the night train and save on hotel bills. Hawk: F vc done it quite a few times now and V m used to the kind of problems that arisc—likc having to sleep in a park because the train arrived too late for me to get a hotel bed, and trying to keep to a tight budget. The mistake people often make is to just get off at the tourist spots. Try getting off the train at the little villages, like I do. They1 re usually fascinating and the people are friendlier, too. Even if they don't understand your miserable attempt at their language they still smile and nod.
Part ⅠDialogue Completion (15 points) Directions: There are 15 short incomplete dialogues in this part, each followed by 4 choices marked A, B, C, D. Choose the best one to complete the dialogue and mark your answer on the ANSWER SHEET with a single line through the center. 1. Rita: You said we could discuss a problem you had when you first came to the U．S．Would you like to tell me your problem Anna:___A________ ,of course. , I’d love to . , as you said. don’t think so. 2. Jack:Hello, this is Jack London. May I speak to Dr．Lee Receptionist:I’m ’s with a A. What’s up I help you？ you wait do you want to see her？ :’m Peter ’t you new here Wendy: _____A_____ I transferred from UCLA. ,I once was here. ’m Wendy Chan. don’t know you. ,fist time here :Hey,Larry!Good to see you!____A______ Larry:Terrible!I just found out I failed my math test,and I studied all night for it! ’s it going do you do are you about you？ 5. Wife:How about picking up some soft drinks on your way home Husband:___D____ Anything else？ ’d love to . don’t mind. pleasure. problem. 6. Sian: Let’s eat out don’t feel like cooking. Vincent:___A____ What do you fancy？ Sian:I think Japanese food would make a nice change. too. B. Do you , why not D. So what？ 7. Kato:Shall we have Chinese or American food Mori:_____D_________ Kato:There is a good steak house around the corner. have nothing in mind doesn’t matter. have no choice! you say! : How are things going with you and your roommate？ Jon:Not very well. We’re _____A___,but I end up feeding him three meals a day. to divide the house work B. supposed to share the groceries C. on good terms D. kind of broke :Shall I pick you up at 5 or 6 Joei:____A____ Mike:OK,I will pick you up at 5. doesn’t make any difference. B. It’s fine with me. you said. bothers me. :Sue,can you drive Jane and me to the doctor on Monday Sue: when you need help. can always count on me B. I’ll be glad to ’ll mark it on my calendar D. You can think of me 11. Mei:Is joining us for dinner Susie:____D_________ Mei:I was hoping she would come with us. think so . B. Not that I know of. said so. that she said. :Sorry,I clock didn’t go off this morning. Francie:__Ａ_____ Perhaps you should buy a new one. should put that right. clock never works. you set the alarm :Hi,’t seen you for a whileHow is Cathy Mike:We’re not seeing each other any more. Ryan:What happened ____Ｂ_________ you fire her you break up believe it. ’s fine. 14. Jack:I heard you’re going out with Jane. Fred: Where did you get that idea？ Jack:______Ｄ___ Jane is a very nice girl,someone you meet only once in a
全国英语等级考试三级写作 邀请信 提出邀请： 我们要……，你能来吗？ We’re having a… can you come？ We’ll…，will you join us？ 我希望你能参加……。好吗？I would like you to come to … 我们准备……，非常希望你能来。 We’re planning…，will you give us the pleasure of your company？ 我们希望你尽可能来参加 We’d love to have you here if you can possibly make it. 你愿意来……吗？How would you like to come to…？ 你来得了吗？Can you be present？／Will you come？ 我们都盼望你来。We hope you can come. / We’re eager to have you here．/ We should like to have you join us． 愿意来……吗？Would you care to come for…？ 敬请光临request the pleasure of the company of sb．
request the honour of sb．’s presence cordially invite the pleasure of sb…． 为欢迎??to meet sb．／in honor of sb 为纪念…诞辰 to commemorate the… birthday of sb．／In honour of．．／ 为庆祝…金婚 to celebrate the gold wedding of… 某人届时将出席 sb．will be present 请答复 R．S．V．P．[reply, if you please] ／Please reply／ Kindly send reply to sb．／Please respond to sb．／ The favor of a reply is requested ／ 活动内容： 朋友周末小聚 have some friends for the weekend 一起喝茶 come for tea with us 打桥牌 play bridge 跳舞 have dancing /there will be dancing 有两张……票 have two tickets for… 各类聚会：a small，informal party／a birthday party for sb．／a garden party／masquerade／holiday party 与某人共进晚餐 join sb．for dinner／ have dinner with sb．／dine with sb
模拟测试一 一、选择题 1．____________是现代通用计算机的雏形。 A．宾州大学于1946年2月研制成功的ENIAC B．查尔斯·巴贝奇于1834年设计的分析机 C．冯·诺依曼和他的同事们研制的EDV AC D．图灵建立的图灵机模型 3．在下列关于图灵机的说法中，错误的是____________。 A．现代计算机的功能不可能超越图灵机 B．图灵机不能计算的问题现代计算机也不能计算 C．图灵机是真空管机器 D．只有图灵机能解决的计算问题，实际计算机才能解决 5．目前，被人们称为3C的技术是指____________。 A．通信技术、计算机技术和控制技术 B．微电子技术、通信技术和计算机技术 C．微电子技术、光电子技术和计算机技术 D．信息基础技术、信息系统技术和信息应用技术 6．在下列关于信息技术的说法中，错误的是____________。 A．微电子技术是信息技术的基础 B．计算机技术是现代信息技术的核心 C．光电子技术是继微电子技术之后近30年来迅猛发展的综合性高新技术 D．信息传输技术主要是指计算机技术和网络技术 7．在计算机运行时，把程序和数据一同存放在内存中，这是1946年由____________领 8．计算机最早的应用领域是____________。
146 二、填空题 1．最近的研究表明，电子计算机的雏形应该是由阿塔索夫和他的研究生在1941年制作成功的____________计算机。 2．计算机辅助设计的英文简称是____________。 3．第二代电子计算机采用的物理器件是____________。 4．未来计算机将朝着微型化、巨型化、____________、智能化方向发展。 5．目前，人们把通信技术、计算机技术和控制技术合称为____________。
2011年全国公共英语三级模拟试题及答案 Section I Listening Comprehension(25 minutes) （略） Section ⅡUse of English(15 minutes) Directions: Read the following text. Choose the best word or phrase for each numbered blank and mark A, B,C, or Don your ANSWER SHEET 1. Text Most young people enjoy physical activities, walking, cycling, football, or mountaineering. These who have a passion 26 climbing high and difficult mountains are often 27 with astonishment. Why are men and women 28 to suffer cold and hardship, and to 29 on high mountains? This astonishment is caused, probably, by the difference between mountaineering and other forms of activities 30 which men give their leisure. There are no man-made rules, as there are for 31 as golf and football. There are, of course, rules of different kinds which it would be dangerous to 32 , but it is this freedom from man-made rules 33 makes mountaineering attractive to many people. Those who climb mountains are free to their own 34 . If we 35 mountaineering with other more familiar sports, we might think that one big difference is 36 mountaineering is not a “team work”. However, it is only our misunderstanding. There are, in fact, no :matches”37 “teams”of climbers, but when climbers are on a rock face linked by a rope on which their lives may 38 , obviously, there is teamwork. A mountain climber knows that he may have to fight with natural 39 that ate stronger and more powerful than man. His sport requires high mental and 40 qualities. A mountain climber 41 to improve on skill year after year. A skier is probably past his best by the age of thirty, and most international tennis champions 42 in their early twenties. But it is not 43 for men of fifty or sixty to climb the highest mountains in the Alps. They may take more 44 than younger men, but they probably climb more skill and less 45 of effort, and they certainly experience equal enjoyment.
一、选择题 1、以下名称是手机中的常用软件，属于系统软件的是（B ）。 A) 手机QQ B) android C) Skype D) 微信 【解析】Andriod是手机操作系统，属于系统软件，直接排除A、C、D，答案选择B。 2、计算机操作系统通常具有的五大功能是（ C ）。 A) CPU管理、显示器管理、键盘管理、打印机管理和鼠标器管理 B) 硬盘管理、软盘驱动器管理、CPU的管理、显示器管理和键盘管理 C) 处理器(CPU)管理、存储管理、文件管理、设备管理和作业管理 D) 启动、打印、显示、文件存取和关机 【解析】操作系统通常应包括下列五大功能模块：处理器管理、作业管理、存储器管理、设备管理、文件管理。 3、造成计算机中存储数据丢失的原因主要是( D ）。 A) 病毒侵蚀、人为窃取 B) 计算机电磁辐射 C) 计算机存储器硬件损坏 D) 以上全部 【解析】造成计算机中存储数据丢失的原因主要是：病毒侵蚀、人为窃取、计算机电磁辐射、计算机存储器硬件损坏等等。因此答案选择D选项。 4、下列选项不属于"计算机安全设置"的是（ C ）。 A) 定期备份重要数据 B) 不下载来路不明的软件及程序 C) 停掉Guest 帐号
D) 安装杀（防）毒软件 【解析】对于信息系统的使用者来说，维护信息安全的措施主要包括保障计算机及网络系统的安全，预防计算机病毒以及预防计算机犯罪等内容。在日常的信息活动中，我们应注意以下几个方面:①尊重知识产权，支持使用合法原版的软件，拒绝使用盗版软件；②平常将重要资料备份；③不要随意使用来路不明的文件或磁盘，若需要使用，要先用杀毒软件扫描；④随时注意特殊文件的长度和使用日期以及内存的使用情况；⑤准备好一些防毒、扫毒和杀毒的软件，并且定期使用。A、B、D选项都是属于安全设置的措施，C选项关于账号的停用不属于该范畴，因此选择C选项。 5、已知英文字母m的ASCII码值为6DH ，那么ASCII码值为71H的英文字母是（D ）。 A) M B) j C) p D) q 【解析】6DH为16进制（在进制运算中，B代表的是二进制数，D表示的是十进制数，O表示的是八进制数，H表示的是十六进制数）。m的ASCII码值为6DH，用十进制表示即为6×16+13=109（D在10进制中为13）。q的ASCII码值在m的后面4位，即是113 ，对应转换为16进制，即为71H，因此答案选择D。 6、一个汉字的内码长度为2个字节，其每个字节的最高二进制位的值依次分别是（D ）。 A) 0，0 B) 0，1 C) 1，0 D) 1，1 【解析】国标码是汉字信息交换的标准编码，但因其前后字节的最高位为0，与ASCII 码发生冲突，于是，汉字的机内码采用变形国标码，其变换方法为：将国标码的每个字节都加上128，即将两个字节的最高位由0改1，其余7位不变，因此机内码前后
2020 年全国公共英语等级考试PETS 三级模拟试题Text Most young people enjoy physical activities, walking, cycling, football, or mountaineering. These who have a passion 26 climbing high and difficult mountains are often 27 with astonishment. Why are men and women 28 to suffer cold and hardship, and to 29 on high mountains? This astonishment is caused, probably, by the difference between mountaineering and other forms of activities 30 which men give their leisure. There are no man-made rules, as there are for 31 as golf and football. There are, of course, rules of different kinds which it would be dangerous to 32 , but it is this freedom from man-made rules 33 makes mountaineering attractive to many people. Those who climb mountains are free to their own 34 . If we 35 mountaineering with other more familiar sports, we might think that one big difference is 36 mountaineering is not a “team work ” . However, it is only our misunderstanding. There are, in fact, no ：matches” 37 “teams” of climbers, but when climbers are on a rock face linked by a rope on which their lives may 38 , obviously, there is teamwork. A mountain climber knows that he may have to fight with natural 39 that ate stronger and more powerful than man. His sport requires high mental and 40 qualities.