1Direction: You are required to write a Briefing on My College Life to freshmen based on the outline given in Chinese. 假如你是大学二年级学生李华，应邀与一年级新生座谈，就大学生活的各方面假如你是大学二年级学生李华，应邀与一年级新生座谈，就大学生活的各方面 (1独立性独立性 2人际关系人际关系 3学习方法等学习方法等) 给予建议。给予建议。 Hi fellow students,I am a sophomore from the Computer Science Department of our University. Here, I would like to say a few words to you, which I hope would be of some help to you. One of the features of college life requires the young to think, judge and act on his own. Though we can still turn to teachers and parents for help when encountering difficulty, it is ourselves who have the final say. Here I want to stress the ability to teach ourselves. Meanwhile, to build a good relation net is another mission we should place emphasis on. Learning to get along with classmates and forming new friendships improve the quality of campus life and help our future career. Moreover, confronted with so many courses, most of which are demanding and profound, you should know better than to be satisfied with classroom learning; learning outside of the class is not only necessary but also determines the level of our success.In short, it is up to you to become a success or a failure in the years ahead but to get well prepared is half done. I wish good luck to all of you. 2. (投诉信)Directions: Write a letter of complaint according to the following situation: You bought an air conditioner in Sun Appliance and had it installed the other day, but you found that the fan made too much noise when the machine operated. You demand the store to send a representative to check it up.Dear Sir or Madam,Im writing to lodge the complaint about the poor quality of an air conditioner that I purchased from Sun Appliance Company.Frankly speaking, Sun Appliance has always been my favorite. On April 4, 2007, I bought the air conditioner (serial number 12345) from one of your chain store located in Lang Fang. The machine operated well at first, but ten days later, there was a fault that bothered me, that is, the fan made so much noise that I could not sleep well at night. Worse still, the cooling system didnt work well and the machine began to leak recently. Its poor quality ruined almost all my previous impression toward your products.I strongly suggest that a repairman or a service engineer should be sent to my home without delay. I wonder if you could pinpoint the exact cause of the malfunction as soon as possible. If you cant, I am afraid that I will request for full amount of refund（退款） or a new air conditioner.I would appreciate all your assistance in this matter. If you have any questions, please dont hesitate to contact me. Look forward to your early reply.Yours Sincerely,Li Ming3. （求职信）Directions: The summer vacation is drawing near. You, Liming by name, want to find a part-time job. Write an application letter of about -150 words within 30 minutes. Dear Sirs, Im Li Ming, a sophomore majoring in English at XX University. I read in yesterdays newspaper that you are looking for a part-time secretary and I think Ill prove to be a real find for you.During the past two years at university, Ive taken over 18 compulsory and optional course, and have according improved my ability of English listening, speaking, reading, writing and translation considerably. Besides, I have learned a lot about foreign relations and trade. At leisure, I always try to grasp every precious opportunity to practice English with native speakers. As a matter of fact, Ive already tried some translation and interpretation jobs. I once worked as a temporary interpreter at the East China Export Commodities Fair. In addition, during the past two years, I have been working as a part-time tour guide. My jobs offered me good opportunities to improve my English and work competence and I enjoy them very much.Two weeks from now, I will be on holiday again. If you can grant me the honor to work for your company as a secretary for two months, Id feel obliged. Thank you for reading my application letter. Im looking forward to your reply.Yours Sincerely,Li Ming4. 1. 描述上图所示的手机用户数的变化情况2. 出现这种情况的原因3. 对此现象作出评价Cell PhonesAs is shown in the chart, there was a dramatic increase in the users of cell phones during the period from 1999 to 2005. In 1999, the number of cell phones in use was only 2 million,while the number rose to 5 million in 2002 and suddenly soared to 9 million by the year of 2005.There are three main factors contributing to this development. In the first place, a cell phone has no wires and can be carried everywhere easily. In the second place, a cell phone is something wonderful that we can have fun with news, games, music and chat through sending short messages. Additionally, the drop in price and the simultaneous improvement in the functions have made it possible for an average person to make use of cell phone.The wide use of cell phones has make them more and more indispensable in peo