2016年计算机四级考试复习题及答案
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1、SMTP服务器端使用的端口号默认为________。
A.21
B.25
C.53
D.80
【答案】:B
要点解析:简单邮件传送协议(SMTP)主要完成电子信件的发送以及信件在邮件系统之间的传递。SMTP服务器端使用的端口号默认为TCP25。
2、当使用时间到达租约期的________时,DHCP客户端和DHCP服务器将更新租约。
A.50%
B.75%
C.87.5%
D.100%
【答案】:A
要点解析:DHCP使用"租约"来表示IP地址的租用时限。当租用期过了一半(即50%)时,DHCP客户端向服务器单播一个DHCPrequest报文要求更新租用期。若DHCP服务器不响应此DHCPrequest报文,则在租用期过了87.5%时,DHCP客户必须重新发送DHCPrequest报文。
3、在Linux中,某文件的访问权限信息为"-rwxr-r-",以下对该文件的说明中,正确的是________。
A.文件所有者有读、写和执行权限,其他用户没有读、写和执行权限
B.文件所有者有读、写和执行权限,其他用户只有读权限
C.文件所有者和其他用户都有读、写和执行权限
D.文件所有者和其他用户都只有读和写权限
【答案】:B
要点解析:Linux操作系统对文件的访问设定了3级权限:文件所有者、同组用户和其他用户。对文件的访问设定了3种处理操作:读取"r"、写入"w''和执行"x"。"."表示没有权限。某文件的访问权限信息为"-rwxr-r-",其中最左边的一位是Linux操作文件系统的标志位(如"-"代表文件,"d"代表目录,"b"代表块专用文件,"c"代表字符专用文件,"1"代表符号连接等)。接着每3位依次表示文件所有者、同组用户和其他用户的访问权限。即文件所有者对文件有读、写和执行权限,同组用户和其他用户对文件只有读权限,没有写和执行权限。
4、在Linux中,更改用户口令的命令是________。
A.pwd
B.passwd
C.kouling
D.password
【答案】:B
要点解析:在Linux中,使用命令passwd更改用户口令。
5、以下安全协议中,用来实现安全电子邮件的协议是________。
A.IPseC
B.L2TP
C.PGP
D.PPTP
【答案】:C
要点解析:PGP是一种被广泛使用的电子邮件加密软件,用于实现电子邮件通信过程中的安全传输。2016年计算机四级考试复习题及答案2016年计算机四级考试复习题及答案。
6、在Linux中,目录"/proc"主要用于存放(34)。
A.设备文件
B.命令文件
C.配置文件
D.进程和系统信息
【答案】:D
要点解析:由于/proc是一个虚拟目录,用于从内存读取进程信息(即是内存的映射),因此该目录中的内容关机后不能被保存。
7、网络用户只能接收但不能发送Email,不可能的原因是________。
A.服务器配置错误
B.路由器端口的访问控制列表设置为denypop3
C.路由器端口的访问控制列表设置为denysmtp
D.客户端代理设置错误
【答案】:B
要点解析:在电子邮件(E.mail)通信模型中,SMTP主要完成电子信件的发送以及信件在邮件系统之间的传递;POP3/IMAP4的功能是将信件从邮件服务器的信箱传送到本地主机供阅读、处理。在本试题中,网络用户能够接收Email,则说明:①E.mail服务器与客户端之间已成功建立通信链路;②通信链路中相关路由器端l:1的访问控制列表(ACL)并没有"denypop3"之类的配置等。
因此造成不能发送E.mail的可能的原因有:①客户端中与E.mail服务器相关参数的配置有误;②客户端选中了诸如"使用邮件代理服务器来收发邮件"之类的复选框,但邮件代理服务器的相关参数却是错误的;③通信链路中相关路由器端口的访问控制列表(ACL)配置了诸如"denysmtp"之类的语句等。
8、若主机所在网络的网关IP地址为192.168.1.254,则在基于Linux操作系统的客户机中,可以使用命令 ( ) 添加网关为默认路由。
A. ifconfi9.route default l92.168.1.254
B. route add default gw l92.168.1.254
C. netstar default gateway l92.168.1.254
D. 1s route default gate l92.168.1.254
【答案】:B
要点解析:在LinuX操作系统中,命令route用于查看或配置网络设备(网络接口卡)的IP路由表信息。若某台Linux主机所在网络的网关IP地址为192.168.0.254,则可使用命令route add default gw l92.168.0.254添加网关为默认路由。
9、在Linux操作系统中,目录"/0pt"主要用于存放 ( ) 。
A.标准系统管理文件
B.可选的安装软件
C.进程和系统信息
D.系统的设备文件
【答案】:B
要点解析:在Linux操作系统中,目录"/0pt"主要用于存放可选的安装软件。
/bin目录存放标准系统实用程序(例如引导启动所需的命令或普通用户常用的命令);/sbin目,蒯/bin,存放标准系统管理文件,通常不给普通用户使用;目录"/proc"主要用于存放进程和系统信息;/dev目录存放系统的设备文件(如打印驱动等)。
10、某企业网内的一台计算机不能使用域名而可以使用IP地址访问外部服务器,造成这种故障的原因不可能是 ( ) 。
A.本地域名服务器无法与外部正常通信
B.提供被访问服务器名字解析的服务器有故障
C.该计算机DNS设置有误
D.该计算机与DNS服务器不在同一子网
【答案】:D
要点解析:企业网内的一台计算机可以使用IP地址访问外部服务器,说明该计算机的TCP/IP协议工作正常,且IP地址、子网掩码、网关地址参数设置正确。同时,也说明该计算机发送的IP分组能够被转发到其他子网(或网络)中。大部分情况下,企业网的DNS服务器放置在防火墙的DMZ网段中,或者是企业网直接利用Internet中相关DNS服务器进行域名解析,它与作为客户端的计算机通常不在同一子网中。这一因素不会造成某台计算机不能使用域名访问外部服务器的现象。
造成该计算机不能使用域名访问外部服务器的原因主要有:①该计算机DNS设置有误;②该计算机设置的DNS服务器工作不正常,即提供被访问服务器名字解析的DNS服务器有故障;③本
地域名服务器没有所要访问的外部服务器的DNS记录,且本地域名服务器无法与外部正常通信等。
11、在网络设备配置和运维过程中,经常使用TFTP上传、下载交换机/路由器等设备的IOS。2016年计算机四级考试复习题及答案文章2016年计算机四级考试复习题及答案出自,此链接!。以下关于TFTP的描述中,错误的是 ( ) 。
A.采用客户机/N务器方式,支持文件传输和用户交互功能
B.每次使用UDP 69端口传送小于等于512 8的用户数据
C.既没有列目录的功能,也不能对用户进行身份鉴别
D.有相应的差错控制措施,每个报文需要应答
【答案】:A
要点解析:TFTP是TCP/IP协议簇应用层的一个协议。它只支持文件传输而不支持交互。
12、使用www服务时需要使用HTTP传送页面文件。以下对于HTTP/1.0工作模式的描述中,正确的是 ( ) 。
A.使用UDP传送页面文件,不需要建立连接
B.使用TCP传送页面文件,每个页面文件单独建立TCP连接传送
C.使用UDP传送页面文件,每个页面文件单独建立UDP连接传送
D.使用TCP传送页面文件,一个TCP连接建立后传送所请求的多个页面文件
【答案】:B
要点解析:超文本传输协议(HTTP)是一种基于TCP 80端口号在浏览器与Web服务器之间传送网页信息的应用层协议。TCP是一种面向连接的传输层协议,在数据传输之前需要在发送方和接收方之间建立一对一的连接(即单播通信)。换言之,TCP的连接方式是点对点的,即一个发送方对应一个接收方。因此HTTP/1.0使用TCP传送页面文件时,每个页面文件都需要单独建立一条TCP连接。对此,HTTP/1.1增加了一个持续连接特性,详见表7-22。
13、若路由器R因为拥塞丢弃IP分组,则此时R可向发出该IP分组的源主机发送的ICMP报文的类型是 ( ) 。
A.路由重定向
B.目标不可到达
C.源抑制
D.超时
【答案】:C
要点解析:若路由器或目的主机缓冲资源耗尽而必须丢弃数据报,则每丢弃一个数据报就向源主机发送一个ICMP源抑制报文,此时,源主机必须减小发送速度。另外一种情况是系统的缓冲区已用完,并预感到将发生拥塞,则发送源抑制报文。但是与前一种情况不同,涉及的数据报尚能提交给目的主机。 .
当一台主机向自己的缺省网关发送一个需要转发的数据包时,如果该网关路由器查找路由表发现有更好的路由,就会向源主机发出"重定向"的ICMP报文。
如果在IP数据报的传送过程中,路由器发现网络出现拥塞,则路由器将向源主机发出"目标不可到达"的ICMP报文。
一个IP包从源节点出发时,其TTL值被设定一个初始值(比如255),经过一跳一跳的传输,如果这个IP包的TTL降低到零,路由器就会丢弃此包。此时,该路由器上的ICMP便会发出一个"超时(time exceeded)"的ICMP报文。
14、在ARP工作过程中,请求包和应答包分别采用的传输方式是 ( ) 。
A.单播、单播
B.广播、广播
C.单播、广播
D.广播、单播
【答案】:D
要点解析:通常,数据帧中的"目的地址"是一个48位的MAC地址。使用ARP可以通过已知的IP地址查找对应的MAC地址。ARP请求包采用的是广播方式,而ARP应答包采用的是单播方式。
15、按照分布范围对计算机网络进行划分,福归ItNJl:京之间的网络属于 ( ) 。
2016年计算机四级考试复习题及答案计算机等级考试题库。
A.MAN
B.PAN
C.WAN
https://www.doczj.com/doc/5118222463.html,N
【答案】:C
要点解析:福州到北京之间的计算机网络覆盖范围大于数十公里以上,因此该网络应归属于广域网(WAN)。
16、如果将OSPF区域看成一个节点,则0SPF是以 ( ) 。
A.存根区域为顶点,其他区域为终端的树型拓扑结构
B.主干区域为顶点,其他区域为终端的星型拓扑结构
C.标准区域为顶点,其他区域为终端的树型拓扑结构
D.完全存根区域为顶点,其他区域为终端的环型拓扑结构
【答案】:B
要点解析:在OSPF协议中,一个区域所设置的特性控制着它所能接收到的链路状态信息的类型。区分不同OSPF区域类型的关键在于它们对外部路由的处理方式。为了限制路由信息传播的范围,OSPF协议把网络划分成5种区域(Area):主干区域、标准区域、存根区域、完全存根区域和不完全存根区域。
主干区域是连接各个区域的中心实体,所有其他的区域都要连接到这个区域上交换路由信息。如果将区域看成一个节点,则OSPF是以主干区域(area 0)为顶点,其他区域为终端的星型拓扑结构。
17、在Linux系统中,inetd服务的默认配置文件为 ( ) 。
A./etc/ineconfig
B./etc/state/inetconf
C./etc/inetconf
D./etc/sbin/ineconfig
【答案】:C
要点解析:默认情况下,/etc/inetd.conf3是Linux系统的超级服务进程inetd 的配置文件。它负责监听多个TCP/IP端口。当它收到请求,就根据配置文件派生一个相应的服务进程。通过使用超级服务进程inetd,其他服务就可以只在需要时才派生,从而避免宝贵的系统资源被未提供服务功能的进程所占用的现象。
2016年6月大学英语四级真题及参考答案 Part ⅡListening Comprehension (听力部分共有两套) 四级第一套 Section A 1. C) Rising unemployment worldwide. 2. A) Many countries have not taken measures to create enough jobs. 3. B) Put calorie information on the menu. 4. A) They will be fined.C) They will get a warning. 5. D) Failure to integrate innovation into their business. 6. B) It is the creation of something new. 7. C) Its innovation culture. Section B 8. D) He does not talk long on the phone. 9. B) Talk at length. 10. A) He thought it was cool. 11. C) It is childish and unprofessional. 12. B) He is unhappy with his department manager. 13. A) His workload was much too heavy. 14. C) His boss has a lot of trust in him. 15. D) Talk to his boss in person first. Section C 16. A) The importance of sleep to a healthy life. 17. C) They get less and less sleep. 18. D) Their blood pressure will rise. 19. B) What course you are going to choose. 20. D) The personal statement. 21. C) Indicate they have reflected and thought about the subject. 22. B) It was built in the late 19th century. 23. D) They often broke down. 24. A) They were produced on the assembly line. 25. C) It marked a new era in motor travel. 四级第二套
计算机考试试题及答案 计算机考试试题及答案 一、单项选择题(每小题1分,共20分)在每小题列出的四个选项中,选出一个正确答案,并将正确答案的号码写在题干后面的括号内。 1.关于操作系统的叙述( )是不正确的。 A.“管理资源的程序” B.“管理用户程序执行的程序” C.“能使系统资源提高效率的程序” D.“能方便用户编程的程序” 2.操作系统的发展过程是( ) A.设备驱动程序组成的原始操作系统,管理程序,操作系统 B.原始操作系统,操作系统,管理程序 C.管理程序,原始操作系统,操作系统 D.管理程序,操作系统,原始操作系统 3.用户程序中的输入,输出操作实际上是由( )完成。 A.程序设计语言 B.编译系统 C.操作系统 D.标准库程序 4.计算机系统中判别是否有中断事件发生应是在( ) A.进程切换时 B.执行完一条指令后 C.执行P操作后 D.由用户态转入核心态时 5.设计批处理多道系统时,首先要考虑的是( ) A.灵活性和可适应性 B.系统效率和吞吐量
C.交互性和响应时间 D.实时性和可*性 6.若当前进程因时间片用完而让出处理机时,该进程应转变为( )状态。 A.就绪 B.等待 C.运行 D.完成 7.支持程序浮动的地址转换机制是( ) A.页式地址转换 B.段式地址转换 C.静态重定位 D.动态重定位 8.在可变分区存储管理中,最优适应分配算法要求对空闲区表项按( )进行排列。 A.地址从大到小 B.地址从小到大 C.尺寸从大到小 D.尺寸从小到大 9.逻辑文件存放在到存储介质上时,采用的组织形式是与( )有关的。 A.逻辑文件结构 B.存储介质特性 C.主存储器管理方式 D.分配外设方式 10.文件的保密是指防止文件被( ) A.篡改 B.破坏 C.窃取 D.删除 11.对磁盘进行移臂调度的目的是为了缩短( )时间。 A.寻找 B.延迟 C.传送 D.启动 12.启动外设前必须组织好通道程序,通道程序是由若干( )组成。 https://www.doczj.com/doc/5118222463.html,W B.CSW C.CAW D.PSW 13.一种既有利于短小作业又兼顾到长作业的作业调度算法是( ) A.先来先服务 B.轮转 C.最高响应比优先 D.均衡调度
2016年12月英语四级真题(第一套) Part I Writing (30minutes) (请于正式开考后半小时内完成该部分,之后将进行听力考试) Directions:For this part, you are allowed 30 minutes to write an essay .Suppose you are two options upon graduation: one is to take a job in a company and the other to go to a graduate school. You are to make a choice between the two. Write an essay to explain the reasons for your choice. You should write at least 120 words but no more than 180 words. Part II Listening Comprehension (25 minutes) Section A Directions: In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C). Then mark the corresponding letter on the Answer sheet1with a single line through the centre. Questions 1and 2 are based on the news report you have just the heard. 1. A) It was going to be renovated. C) It was dangerous to live in. B) He could no longer pay the rent. D) He had sold it to the royal family. 2. A) A storm. C) A forest fire. B) A strike. D) A Terrorist attack. Questions 3and 4 are based on the news report you have just heard. 3. A) They lost contact with the emergency department. B) They were injured by suddenly falling rocks. C) They sent calls for help via a portable radio. D) They were trapped in an underground elevator. 4. A) They provided the miner with food and water. B) They sent supplies to keep the miners warm. C) They released the details of the accident. D) They tried hard to repair the accident. Question5 to7 are based on the news report you have just heard. 5. A) Raise postage rates. C) Close some of its post offices. B) Improve its services. D) Redesign delivery routes. 6. A) Closing offices on holidays. C) Computerizing mail sorting processes. B) Shortening business hours. D) Stopping mail delivery on Saturdays.
2016年12月英语四级真题及答案详解和听力原文第二套 2016年12月英语四级真题第二套 Part I Writing (30minutes) (请于正式开考后半小时内完成该部分,之后将进行听力考试) For this part, you are allowed 30 minutes to write an essay. Suppose you have two options upon graduation: one is to work in a state-owned business and the other in a joint venture. You are to make a choice between the two. Write an essay to explain the reasons for your choice. You should write at least 120 words but no more than 180 words. Part II Listening Comprehension (25 minutes ) Section A Directions: In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C). Then mark the corresponding letter on the Answer sheet1with a single line through the centre. Questions 1 and 2 are based on the news report you have just the heard . 1. A) It was dangerous to live in. C) He could no longer pay the rent. B) It was going to be renovated. D) He had sold it to the royal family. 2. A) A strike. B)A storm. C) A forest fire. D) A Terrorist attack. Questions 3 and 4 are based on the news report you have just heard . 3. A) They lost contact with the emergency department. B) They were trapped in an underground elevator. C) They were injured by suddenly falling rocks. D) They sent calls for help via a portable radio. 4. A) They tried hard to repair the accident. B) They released the details of the accident. C) They sent supplies to keep the miners warm. D) They provided the miner with food and water. Question s 5 to 7 are based on the news report you have just heard . 5. A) Raise postage rates. C) Redesign delivery routes. B) Improve its services. D) Close some of its post offices. 6. A) Shortening business hours. C) Stopping mail delivery on Saturdays. B) Closing offices on holidays. D) Computerizing mail sorting processes. 7. A) Many post office staff will lose their jobs. C) Taxpayers will be very pleased. B) Many people will begin to complain. D) A lot of controversy will arise. Section B Directions: In this section,you will hear two long conversations. At the end of each conversation,you will hear four questions. Both the conversation and the questions will be spoken only once. After you hear a question, you must choose the
2016年12月英语四级真题及答案第三套 Part I Writing (30 minutes) Directions: For this part, you are allowed 30 minutes to write an essay. Suppose you have two options upon graduation: one is to work in a state-owned business and the other in a joint venture.You are to make a choice between the two. Write an essay to explain the reasons for your choice. You should write at least 120 words but no more than 180 words. Part Ⅱ Listening Comprehension (25 minutes) Section A Directions: In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1with a single line through the centre. Questions 1 and 2 are based on the news report you have just heard. 1. A) To satisfy the curiosity of tourists. B) To replace two old stone bridges. C) To enable tourists to visit Goat Island. D) To improve utility services in the state. 2. A) Countless tree limbs. B) A few skeletons. C) Lots of wrecked boats and ships. D) Millions of coins on the bottom. Questions 3 and 4 are based on the news report you have just heard. 3. A) It suspended diplomatic relations with Libya. B) It urged tourists to leave Tunisia immediately.
2016年大学英语四级真题(第三套)完美Word打印版
2016年6月四级考试真题(第三套) Part Ⅰ Writing (30 minutes) Directions:For this part,you are all owed 30 minutes to write a l etter to express your thanks to one of your school teachers upon entering coll ege.You shoul d write at l east 120 words but no more than 180 words. Part Ⅱ Listening Comprehension (25 minutes) 说明:2016年6月四级真题全国共考了两套听力。本套(即第三套)的听力内容与第二套的完全一样,只是选项的顺序不一样而已,故在本套中不再重复给出。 Part Ⅲ Reading Comprehension (40 minutes) Section A Directions:In this section,there is a passage with ten blanks.You are required to select one word for each blank from a list of choices given in a word bank following the passage.Read the passage through carefully before making your choices.Each choice in the bank is identified by a l etter.Pl ease mark the corresponding l etter for each item on Answer Sheet 2 with a singl e line through the centre.You may not use any of the words in the bank more than once. Physical activity does the body good,and there’s growing evidence that it helps the brain too.Researchers in the Netherlands report that children who get more exercise,whether at school or on their own.26 to have higher GPAs and better scores on standardized tests.In a 27 of 14 studies that looked at physical activity and academic 28,investigators found that the more children moved.the better their grades were in school,29 in the basic subjects of math,English and reading. The data will certainly fuel the ongoing debate over whether physical education classes should be cut as schools struggle to 30 on smaller budgets.The arguments against physical education have included concerns that gym time may be taking away from study time.With standardized test scores in the U.S.31 in recent years,some administrators believe students need to spend more time in the classroom instead of on the playground.But as these findings show,exercise and academics may not be 32 exclusive.Physical activity can improve blood 33 to the brain,fueling memory,attention and creativity,which are34 to learning.And exercise releases hormones that can improve 35 and relieve stress,which can also help learning.So while it may seem as if kids are just exercising their bodies when they,re running around,they may actually be exercising their brains as well. A.attendance B.consequently C.current D.depressing E.dropping F.essential G.feasible H.flow I.mood J.mutually K.particularly L.performance M.review N.survive O.tend Section B Directions:In this section,you are going to read a passage with ten statements attached to it.Each statement contains information given in one of the paragraphs.Identify the paragraph from which the information is derived You may choose a paragraph more than once.Each paragraph is marked with a l etter.Answer the questions by marking the corresponding l etter on Answer Sheet 2. Finding the Right Home—and Contentment,Too A.When your elderly relative needs to enter some sort of long.term care facility-a moment few parents or
《大学计算机》试题题库及答案 一、单选题练习 1.完整的计算机系统由(C)组成。 A.运算器、控制器、存储器、输入设备和输出设备 B.主机和外部设备 C.硬件系统和软件系统 D.主机箱、显示器、键盘、鼠标、打印机 2.以下软件中,(D)不是操作系统软件。 A.Windows xp B.unix C.linux D.microsoft office 3.用一个字节最多能编出(D )不同的码。 A. 8个 B. 16个 C. 128个 D. 256个4.任何程序都必须加载到(C )中才能被CPU执行。 A. 磁盘 B. 硬盘 C. 内存 D. 外存 5.下列设备中,属于输出设备的是(A)。 A.显示器B.键盘C.鼠标D.手字板 6.计算机信息计量单位中的K代表(B )。 A. 102 B. 210 C. 103 D. 28 7.RAM代表的是(C )。 A. 只读存储器 B. 高速缓存器 C. 随机存储器 D. 软盘存储器8.组成计算机的CPU的两大部件是(A )。 A.运算器和控制器 B. 控制器和寄存器C.运算器和内存 D. 控制器和内存9.在描述信息传输中bps表示的是(D)。 A.每秒传输的字节数B.每秒传输的指令数
C.每秒传输的字数D.每秒传输的位数 10.微型计算机的内存容量主要指(A )的容量。 A. RAM B. ROM C. CMOS D. Cache 11.十进制数27对应的二进制数为( D )。 A.1011 B. 1100 C. 10111 D. 11011 12.Windows的目录结构采用的是(A)。 A.树形结构B.线形结构 C.层次结构 D.网状结构 13.将回收站中的文件还原时,被还原的文件将回到(D)。 A.桌面上B.“我的文档”中 C.内存中 D.被删除的位置 14.在Windows 的窗口菜单中,若某命令项后面有向右的黑三角,则表示该命令项( A )。 A.有下级子菜单B.单击鼠标可直接执行 C.双击鼠标可直接执行D.右击鼠标可直接执行 15.计算机的三类总线中,不包括(C )。 A.控制总线 B.地址总线 C.传输总线 D.数据总线 16.操作系统按其功能关系分为系统层、管理层和(D)三个层次。 A.数据层 B.逻辑层 C.用户层 D.应用层 17.汉字的拼音输入码属于汉字的(A)。 A.外码 B.内码 C.ASCII码D.标准码18.Windows的剪贴板是用于临时存放信息的(C )。 A.一个窗口 B.一个文件夹 C.一块内存区间D.一块磁盘区间 19.对处于还原状态的Windows应用程序窗口,不能实现的操作是(D )。
2016年6月大学英语四级真题试卷(第一套) Part I Writing (30 minutes) Directions: For this part, you are allowed 30 minutes to write a letter to express your thanks to one of your friends who helped you most when you were in difficulty. You should write at least 120 words but no more than 180 words. Part ⅡListening Comprehension (25 minutes) Section A Directions: In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre. Questions 1 and 2 are based on the news report you have just heard. 1. A) The International La bor Organization’s key objective. B) The basic social protection for the most vulnerable. C) Rising unemployment worldwide. D) Global economic recovery. 2. A) Many countries have not taken measures to create enough jobs. B) Few countries know how to address the current economic crisis. C) Few countries have realized the seriousness of the current crisis. D) Many countries need support to improve their people’s livelihood. Questions 3 and 4 are based on the news report you have just heard. 3. A) Serve standardized food nationwide. B) Put calorie information on the menu. C) Increase protein content in the food. D) Offer convenient food to customers. 4. A) They will be fined. B) They will be closed. C) They will get a warning. D) They will lose customers. Questions 5 to 7 are based on the news report you have just heard. 5. A) Inability to implement their business plans. B) Inability to keep turning out novel products. C) Lack of a successful business model of their own. D) Failure to integrate innovation into their business. 6. A)It is the secret to business success. B)It is the creation of something new. C)It is a magic tool to bring big rewards. D)It is an essential part of business culture. 7. A)Its hardworking employees. B)Its flexible promotion strategy. C)Its innovation culture. D)Its willingness to make investments. Section B Directions: In this section, you will hear two long conversations. At the end of each conversations you will hear four questions. Both the conversations and the question-s will be spoken only once. After you
2016 年 12 月大学英语四级考试真题(第一套) Part I Writing (30 minutes)( 请于正式开考后半小时内完成该部分,之后将进行听 力考试 ) Directions:For this part,you are allowed30 minutes to write an essay.Suppose you have two options upon graduation:one is to take a job in a company and the other to go to a graduate school.You are to make a choice between the two.Write an essay to explain the reasons for your choice. You should write at least 120 words but no more than 180 words. Much controversy has been aroused about whether the students should find a job or start their own business after graduation.Taking a look around,we can find that some graduates bustle around job markets,while others choose to run a shop on TMall. However, I prefer the former choice. From my perspective, there are good reasons to find a job in the first several years after their graduation.First and foremost, if a graduate intends to accumulate working experience and learn from the seniors, it is advisable for him to find a job. It is an undeniable fact that the theoretical knowledge will provide the graduates with the ability to consider things comprehensively,however,only under the integration with practice can the rigid knowledge be useful for their future development. Inevitably, doing something small is the premise of undertaking something great. Take Jack Ma, the founder of Alibaba and taobao, for example. He also finds some jobs before establishing his own career,laying a solid foundation for his later success. Consequently,it is of great necessity to find a job after graduation.I firmly believe that it will continue to bring about more returns to our life and future. Part II Listening Comprehension (25 minutes) Section A
2016年6月18日大学英语四级真题答案与解析 写作 题目: Directions: For this part, you are allowed 30 minutes to write a letter to express your thanks to one of your friends who helped you most when you were in difficulty. You should write at least 120 words but no more than 180 words. 今年四级时隔九年之后首次考了一道应用文写作,虽然出乎意料,但是大家可以根据题干中的关键词“letter”迅速判断今年要写的是书信。书信本身难度不大,但是需要特别注意英文书信的书写格式。 一、四级书信格式要求 1、抬头:收件人的姓名 2、正文:三段式 3、落款:祝福(yours sincerely)写信人名 二、感谢信格式模板: Dear ______, I am writing to extend my sincere gratitude for __________________(感谢的原因). If it had not been for your assistance in __________________(对方给你的具体帮助), I fear that I would have been___________________(没有对方帮助时的后果). No one would disagree that it was you who___________________________(给出细节). Again, I would like to express my warm thanks to you! Please accept my gratitude. Best wishes. Yours sincerely, Li Ming
《计算机基础》试题A卷 题号一二三四五六总分 得分 阅卷人 一、单项选择(每题4分,共40分) 1、用高级程序设计语言编写的程序,要转换成等价的可执行程序,必须经过:() A、汇编 B、编辑 C、解释 D、编译和连接 2、世界上第一太电子计算机是1946年在美国研制成功的,该机的英文缩写是:() A、ENIAC B、EDV AC C、EDSAC D、MARK 3、快捷方式是一个:() A、按扭 B、菜单 C、程序 D、文件 4、Windows2000操作系统的密码不能超过()个字符。 A、14 B、24 C、127 D、17 5、下面不能作为Word2000表格中运用公式进行计算的函数参数是:() A、Below B、Above C、Right D、Left 6、在中文Word2000中,默认的段落标识符是:() A、软回车 B、硬回车 C、分号 D、句号 7、Excel2000的主要功能有大型表格制作功能、图表功能和()功能。 A、文字处理功能 B、数据库管理功能 C、数据透视图报表 D、自动填充功能 8、下面属于算术运算符的是:() A、= B、$ C、% D、& 9、以下网络类型中,()是按拓扑结构划分的网络分类。 A、混合型网络 B、公用网 C、城域网 D、无线网 10、某人想要在电子邮件中传送一个文件,他可以借助()。 A、FTP B、Telent C、WWW D、电子邮件中的附件功能 二、填空(每空2分,共40分) 1、局域网可采用的有线传输介质主要分()、()和()三大类。 2、Excel产生的文件是一种电子表格,该文件又称(),它由若干个( ) 组成. 3、Excel 2000与Word 2000之间的共享信息方式有两种类型:对象()和()。 4、利用()组合键,可以在安装的各种输入法之间切换。 5、Word 2000文档和模板的默认扩展名分别为:()和()。 6、对文件和文件夹的管理,主要有()、()、()、()、() 以及()等基本操作。 7、Windows2000的安装过程,主要分为()、()、( )和() 三、计算题(每题10分,共20分) 1、比较下列各数的大小,写出计算过程 (11011101)2 (DA)16 (219)10 2、写出下列各数的原码、反码和补码形式。 125和-37 得分阅卷人 得分阅卷人得分阅卷人
2016年6月英语四级真题第二套 Part I Writing (30 minutes) Directions:For this part, you are allowed 30 minutes to write a letter to express your thanks to one of your school teachers upon entering college. You should write at least 120 words but no more than 180 words. Part III Reading Comprehension (40 minutes) Section A Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Contrary to popular belief, older people generally do not want to live with their children. Moreover, most adult children _____(26)every bit as much care and support to their aging parents as was the case in the "good old days", and roost older people do not feel _____(27). About 80% of people 65 years and older have living children, and about 90% of them have _____(28)contact with their children. About 75% of elderly parents who don't go to nursing homes live within 30 minutes of at least one of their children.