Do not sign your own name at the end of the letter. Use “Zhang Wei” instead. Do not write your address. (10 points) 48. Directions:
In this section, you are asked to write an essay based on the following chart. In your writing, you should
1) Interpret the chart and 2) Give your comments.
You should write at least 150 words.
Write your essay on on ANSWER SHEET 2. (15 points)
2010年考研英语二真题答案：
1 [D] designated 2 [C] followed 3 [B] numbers 4 [A] moderate 5 [A] with 6 [B] absence 7 [D] notice 8. [C] among 9 [B] crop up 10 [A] as 11 [C] significant 12 [D] samples 13 [D] infected 14 [A] released 15 [C] taking 16 [B] available 17 [D] initial 18 [C] recommended 19 [A] problems 20 [B] caring for
21 D 22 A 23 B 24 C 25 C 26 A 27 C 28 D 29 D 30 B 31 A 32 A 33 D34 C 35 B 36 A 37 C 38 C 39 C 40 D 新题型
译文： 波音和空客都在吹嘘自己最新飞机787和A350的性能，巧妙的设计与轻质的材料当然使它们与众不同。但在斯坦福大学，由伊兰▪克鲁领导的一个研究小组提出，飞机的飞行路线可以改用更具仿生效应的路径来节省燃油，而且并不需要购买新的飞机。 克鲁教授称这个设想是受到鸟类的启发。1914年，一位名叫卡尔▪维塞尔斯伯格的德国研究员发表了一篇具有重大意义的论文，科学家们从中得知，鸟类在飞行的时候排成V字、梯形或倒过来时，会节省体力。气流在划过鸟类双翼时会在其后面弯曲向上，这是一种叫上升流的现象。在上升流中飞行的鸟阻力减小，可以用更小的力气飞。彼得▪利萨曼以前是加州理工学院和南加州大学的航空专家，他认为由25只鸟组成的队伍会将飞行距离提升71%。
当把鸟类的特性应用到飞机上的时候，原理也相差无几。克鲁教授和他的团队模拟了三10
架分别从洛杉矶、旧金山和拉斯维加斯起飞的客机在犹他州集合，采用反V字形状并偶尔换一下位置以便所有飞机轮流利用最有利位置，最后飞到伦敦。他们发现飞机节省多达15%的燃油，相应
的二氧化碳排放也少了很多，途中排放的氮氧化物减少约四分之一。 当然，一定要有完善的操作指南。要考虑安全问题，至少在感觉上来说是安全的。乘客们在换位时会不会不舒服呢?克鲁教授指出飞机间会相隔几海里，不会像红箭表演队(英国皇家空军特技表演队)那样间距小到令人窒息。乘客往窗外看也许都看不到另外的飞机。有关飞机间距是否符合空中管制条例暂且不谈，但国际民航组织的一个工作组已经考虑在新的操作方针中列入编队飞行的可能性。 现在仍需考虑天气情况对气流的影响，这会关系到编队飞行的效率。在有大量乱流的地区，飞机尾部的气流会消失更快，上升流效应就会消失。克鲁教授称，在这方面他们团队将要进行更多的研究。每架客机的起飞时间与目的地都不相同，要协调它们编队飞行很难。相反，货机和日常空军飞行更容易协调时间。 恰逢此时，美军已经着手这项研究。今年早些时候，美国国防部高级研究计划局宣布出资让波音公司研究编队飞行的计划，但项目到现在还没启动。有报道称二战时就有一些军机在燃油不足的情况下编队飞行，但利萨曼教授称那些都是杜撰的，他说：“我父亲是皇家空军飞行员，我的堂兄是一架在柏林坠毁的兰喀斯特式飞机的机长”，所以他应该知道。 翻译参考 “坚持不懈”如今已成一个流行词汇，但对TedNing而言，这个概念一直有个人含义，经历了一段痛苦松懈的个人生活，使他清楚面向以坚持不懈为导向的价值观，必须贯彻到每天的行动和选择中。 Ning回忆起20世纪90年代末期卖保险的那段迷茫时光，他通过蓬勃兴起的网络疯狂地找工作，并且与Boulder代理机构签了约。 事情进展并不顺利，TedNing说到：“那真是个糟糕的选择，因为我对此没有激情，”可以预料，他把工作中的矛盾能解释为没有业务。Ning说：“我很痛苦渴望午夜起来盯着天花板，我没钱，我需要工作，每个人都说‘等吧，只要有耐心会好转的。
F T T T F 翻译参考
“坚持不懈”如今已成一个流行词汇，但对TedNing而言，这个概念一直有个人含义，经历了一段痛苦松懈的个人生活，使他清楚面向以坚持不懈为导向的价值观，必须贯彻到每天的行动和选择中。
Ning回忆起20世纪90年代末期卖保险的那段迷茫时光，他通过蓬勃兴起的网络疯狂地找工作，并且与Boulder代理机构签了约。
事情进展并不顺利，TedNing说到：“那真是个糟糕的选择，因为我对此没有激情，”可以预料，他把工作中的矛盾能解释为没有业务。Ning说：“我很痛苦渴望午夜起来盯着天花板，我没钱，我需要工作，每个人都说?等吧，只要有耐心会好转的。?”
47. Directions:
Dear xxx,
I would like to convey my heartfelt thanks to you for your kindness to receive me when I participated in an exchange program in USA.
Your generous help made it possible that I had a very pleasant stay and a chance to know American cultures better. Besides, I think it is an honor for me to make friends with you and I will cherish the goodwill you showed to me wherever I go. I do hope that you will visit China one day, so that I could have the opportunity to repay your kindness and refresh our friendship.
I feel obliged to thank you again. Sincerely yours, Zhang Wei 48. Directions:
In this chart, we can see the mobile phone subscriptions in developed countries have a steady and slight increase from 1990 to 2007 and then remain constant in 2008. Meanwhile the mobile phone subscriptions in developing countries have witnessed a slow increase from 1990 to 2004 and then a great surge from 2004 to 20007: the biggest surge happens from 2005 to 2006.
This chart reflects different developing modes of mobile phone industry in developed and developing countries. The developed countries have a limited number of populations, most of whom are well-educated. Therefore, the spreading of the mobile phone service is efficient and soon the market is saturated. Also at the beginning the developed countries have more people who can afford this service. The developing countries have a large population who keeps a large demand for mobile service. As the mobile phone service becomes cheaper and cheaper, the increasing customers subscribe to benefit from this service.
As discussed above, it is not surprising to see this change. In my opinion, this trend that the number of mobile-phone subscriptions is increasingly increasing will continue for a while in the future.
2011年考研英语(二)真题及参考答案
Section I Use of English Directions：
Read the following text. Choose the best word(s) for each numbered black and mark A， B， C or D on ANSWER SHEET 1. (10 points)
The Internet affords anonymity to its users， a blessing to privacy and freedom of speech. But that very anonymity is also behind the explosion of cyber-crime that has 1 across the Web.
Can privacy be preserved 2 bringing safety and security to a world that seems increasingly 3 ？
Last month， Howard Schmidt， the nation's cyber-czar， offered the federal government a 4 to make the Web a safer place-a \ 5 of a physical key， a fingerprint and a photo ID card， all rolled 6 one. The system might use a smart identity card， or a digital credential 7 to a specific computer .and would authenticate users at a range of online services.
The idea is to 8 a federation of private online identity systems. User could 9 which system to join， and only registered users whose identities have been authenticated could navigate those systems. The approach contrasts with one that would require an Internet driver's license 10 by the government.
Google and Microsoft are among companies that already have these\it possible for users to 11 just once but use many different services.
12 .the approach would create a \， with safe \bright \ 13 community.
Mr. Schmidt described it as a \complete online transactions with 14 ，trusting the identities of each other and the identities of the infrastructure 15 which the transaction runs\