新职业英语
2010-10
外语教学与研究出版社
刘丽洁，牛长清，徐小贞 编
93
《高职高专英语立体化系列教材·新职业英语：IT英语（形成性评估手册）（行业篇）》是针对高职高专院校非英语专业开发的全新英语教材，以“工学结合、能力为本”的职业教育理念为指导，在帮助学生打好语言基础的同时，注重培养学生在不同职业场景中的英语交际能力，真正体现职业性和实用性。 《高职高专英语立体化系列教材·新职业英语：IT英语（形成性评估手册）（行业篇）》具有以下特点： 每单元由听力、词汇与结构、阅读、翻译、写作五个部分组成，从不同侧面巩固主教材知识； 每单元配有评估档案，促进师生了解，加强教学互动； 练习以活页形式装订，以模块为单位，方便学生呈交作业； 答案单独成册，附于书内，便于教师灵活操作。
Unit 1Unit 2Unit 3Unit 4Unit 5Unit 6Unit 7Unit 8
Task 2 Read the following passage and choose the best answer from the four choices marked A， B， C and D. LAN is a group of computers and associated devices that share a common communications line or wireless link. Typically， these connected devices share the resources of a single processor or server within a small geographic area （for example， within an office building）.Usually， the server has applications and data storage that are shared in common by multiple computer users.A LAN may serve as few as two or three users （for example，several family members） or as many as thousands of users （for example，in a large company）.Today，the major LAN technologies include Ethernet，Token Ring， FDDI and ARCNET. Ethernet is by far the most commonly used LAN technology. However，a number of corporations use the Token Ring technology. FDDI is sometimes used as a backbone LAN interconnecting Ethernet or Token Ring LANs. ARCNET，once the most commonly installed LAN technology， is still used in the industrial automation industry. Typically，a suite of application programs can be kept on the LAN server. If users need an application frequently，they can download it from the server and then run it from their local hard disk.Users can also order printing and other services as needed through applications run on the LAN server. Files can be shared with others via LAN with read and write access maintained by a LAN administrator. LAN servers may be used as a web server as well if safeguards are taken to secure internal applications and data from outside access. In some situations， a wireless LAN is preferable to a wired LAN because it is cheaper and easier to install and maintain. 11.A group of computers and associated devices that share a common communications line or wireless link is called ____ A. Ethernet B. Token Ring C. LAN D. WAN 12.Which is the most commonly-used LAN technology according to the passage？ A. Ethernet. B. Token Ring. C. FDDI. D. ARCNET. 13.Which LAN technology is still in use in the industrial automation industry？ A. Ethernet. B. Token Ring. C. FDDI. D. ARCNET.14. Where can the LAN users download an application program when they need it？ A. From the LAN server. B. From other users. C. From the hard disk. D. From a LAN administrator. 15.What services can the LAN server provide？ A. Downloading application programs. B. Ordering printing. C. Sharing files. D. All of the above. Task 3 Read the following passage and complete the sentences below with the information given in the passage. Wireless connections can extend or replace a wired infrastructure in situations where it iscostly， inconvenient， or impossible to lay cables. To connect the network in two buildings， you can either use a link provided by atelecommunications vendor or create a point-to-point wireless link using wireless LANtechnology. The former charges a fixed installation cost and ongoing recurring costs while thelatter eliminates recurring costs， which provide significant cost savings to organizations. Wireless technology is perfect for meeting temporary needs.For example， at a conventionor a trade fair， the network is needed for only a specific amount of time.In this situation，setting up wireless LAN is a much better choice than deploying the physical cables requiredfor the traditional network. Some types of buildings，such as historical buildings，might be governed by buildingcodes that prohibit the use ofwiring. Setting up wireless networks is an important alternative. The wiring-free aspect of wireless LAN is also very attractive to homeowners who wantto connect the various computers in their home without having to drill holes and pull networkcables through walls and ceilings. Wireless network is also a perfect technology for environments where movement isrequired.For example，in a large company， employees take their laptops to a conference room，or in retail shops，the sales people need walk around to talk with visiting customers and enterinventory information directly into the database.In this case，wireless network that covers thewhole area is much more convenient. ……
