①Why do people put hot metal in water?
A. To make it hard. B. To make it soft. C. To make it cool. D. To make it brittle.
ohio state university[分析]答案为A，此题属推断归纳题。文中第二句说如果把金属加热，然后迅速放到水里冷却，也就会变得非常硬，但也变得脆。hard 是工艺的主观目的。brittle是伴随的客观结果，故选A而不选D。B项明显错
误；C项是手段不是目的，因此，都可排除。refer
牛津词典年度词汇②In annealing, the required hardness of metal depends on __.
A. the quantity of water ud B. the temperature of the metal
C. the softness of the metal D. the timing of the operation
[分析]答案为D,此题属概括归纳题。timing 是时间的选择。本答案的依据是5和6两句，"The metal is heated,…length of time.","The longer…the softer it becomes."cool 的时间是可以控制的，时间越长越 soft,即硬度就越低。由此我们可得出结论：在退火过程中，金属的硬度是受到冷却的时间长短影响的。
③As suggested by the text, how can glass be made less brittle?
A. It can be heated and then cooled quickly. B. It can be cooled and then heated slowly.
C. It can be heated and then cooled slowly. D. It can be cooled and then heated quickly.
[分析]答案为C此题属推理判断题。文中提到"metal"。最后一句说退火工艺同样可用于象玻璃一类的其他材料。文中我们已知"annealing"就是先"heat"后"cool slowly"。由此推断C是正确的。
例2：At one time, computers were expected largely to remove the need for paper copies of documents (文件) becau they could be stored electronically. But for all the texts that are written, stored and nt electronically, a lot of them are still ending up on paper.
It is difficult to measure the quantity of paper ud as a result of u of Internet-connected computers, although just about anyone who works in an office can tell you that when e-mail is introduced, the printers start working overtime. "I feel in my bones this revolution is causing more trees to be cut down," says Ted Smith of the Earth Village Organisation.
Perhaps the best sign of how computer and Internet u pushes up demand for paper comes from the high-tech industry itlf, which es printing as one of its most promising new markets. Several Internet companies have been t upto help small business print quality documents from a computer. Earlier this week Hewlett-Packard Co. announced a plan to develop new technologies that will enable people to print even more so they can get a hard copy of a business document, a medical record or just a one-line e-mail, even if they are nowhere near a computer. As the company es it, the more u of the Internet the greater demand for printers.
Does all this mean environmental concerns(环境问题) have been forgotten? Some activis
shikonts suggest people have been led to believe that a lot of dangers to the environment have gone away. "I guess people believe that the problem is taken care of, becau of recycling(回收利用)," said Kelly Quirke, director of the Rainforest Action Network in San Francisco. Yet Quirke is hopeful that high-tech may also prove helpful. He says printers that print on both sides are growing in popularity. The action group has also found acceptable paper made from materials other than wood, such as agricultural waste.（2003年全国卷）
④The growing demand for paper in recent years is largely due to___________．
A．the rapid development of small business B．the opening up of new markets
C．the printing of high quality copies D．the incread u of the Internet
[分析]本文话题为办公用纸与环保，讲述了计算机与网络的发展并没有如人们先前所预料的那样帮助我们实现无纸化办公，相反地，随着打印技术的发展，用纸量日益增大．于是还得依靠科技，寻找双面打印与开拓农业废料提供造纸原料等出路了．文中涉及科技发展、
生产需求与环保之间的关系，内涵十分深刻，平时“两耳不闻窗外事”的人是很难一下读明白的．本题考查对于文中提供的事实与线索进行逻辑推理的能力．
英语学习论坛近年来纸张用量增加的原因何在?第2段中做出解释：It is difficult to measure the quantity of paper ud as a result of u of Internet-con-nected computers，．．．when e-mail is introduced， the printers start working overtime．．．The growing demand for paper看来正是a result of u of Internet-connected computers．本题答案为D．其余3个选项内容虽然也都在短文不同地方有所涉及，但均非题干所问纸张用量增长的直接原因，可逐一排除．
中，C项干扰性最大，第3段中所提及的Several Internet companies have been t up to help small business print quality documents from a computer 与选项C十分接近，因而对他们构成迷惑，这是因为考生没有能够认识到这一事实出现在本段中，只是为了说明how computer and Internet u pushes up demand for paper comes from the high-tech industry itlf，然而the printing of high quality copies本身并非纸张需求增长的原因．
