四级作文第三.doc

四级作文第三讲现象解释（图表分析型）作文：要突出重点，抓住图表中的极端点，如最大最小，最多最少，最差最好，基本相同处等。看出总的规律趋势，抓住特征，归纳增减速度。图表中如出现大量数据，描述时抓住重点，不必一 一列出曲线图，饼状图，柱状图 chart 表格图 table1. 上图所示为1990年，1995年，2000年某校大学生使用计算机的情况，请描述起变化。2. 说明发生这些变化的原因（可从计算机的用途价格或社会发展等方面加以说明3. 你认为目前大学生在计算机使用中有什么困难和问题。Students Use of Computers As is clearly shown in the chart, students are now spending much more time on the computer, form one hour to four hours per week between 1990 and 1995. Especially, it increases sharply to twenty hours in the year of 2000. There are three reasons for this phenomenon. To begin with, due to the sharp decline in price of personal computer, most college students now can afford one. In addition, they find the computer a wonderful thing to have fun with. For example, they can chat through QQ or playing games on line. Last but not least, from Internet, they can learn things much more quickly than simply from reading books so that they can secure a good job in the future. In short, low price, increasing awareness of having fun or getting information from Internet make student use computes a lot.As far as Im concerned, there are some complaints from both teachers and students. On the one hand, students complaint about the less availability of computers and slow speed of the network. On the other hand, some teachers worry that the much more time spent playing computer games or surfing on line will lead students to ignore their studies and even do cheating instead of doing research by their own. In brief, in spite of problems concerning the use of computer, we cant deny that computer is of more merits than defects. As is clearly shown in the chart, _正如在表中清楚展示的_. Especially, _. There are three reasons for _ .To begin with, _. In addition, _. For example, _. Last but not least, _. In short, _ .As far as Im concerned, _. On the one hand, _. On the other hand, _. In brief, _. The chart shows that students are now spending much more time on the computer, from one hour to fore hours per week from 1990 to 1995. It is self-evident that it increases sharply to twenty hours in the year of 2000. Three possible reasons contribute to this phenomenon.One reason is that most college students now can afford a personal computer due to the sharp decline in its price. Another reason is that they find the computer a wonderful thing to have fun with. For instance, they can chat through QQ or playing games on line. Whats more, from Internet, they can learn things much more quickly than simply from reading books so that they can secure a good job in the future. As a result, all these lead to much more time spent on using computers. However, in my opinion, there are some complaints from both teachers and students. For one thing, students complain about the less availability of computers and slow speed of the network. For another, some teacher worry that the much more time spent playing computer games or surfing on line will lead students to ignore their studies and even do cheating instead of doing research by their own. To sum up, in spite of problems concerning the use of computer, computer is still of more merits than defects.The chart shows that _. It is self-evident that _. Three possible reasons contribute to _.One reason is that _. Another reason is that _. For instance, _ .Whats more, _. As a result, _.However, in my opinion, _. For one thing, _. For another, _. To sum up, _. Using computers has become a common part of peoples life. And the tremendous growth of student use of computers has always aroused the greatest concern. What impresses us most is that, in 2000, college students averagely spent 20hours per week on computer, which is the size more than ten times that of ten years age. The reasons why computers are widely used are varied. Among the various reasons the decreasing price of PC plays an important part. That is to say, more students can afford a personal computer. What is more, Internet provides college students an amazing world to explore. For example, people can get the latest news and information as well as conveniently make friends around the world. When talking about disadvantages and problems existing in student use of computers, I think that their lack of skills and disciplines is the point we should pay attention to. On the one hand, their lack of skills fails students to make full use of the computer and Internet. On the other hand, their lack of necessary disciplines makes some students indulge in computer games and net world, and even other negative materials, forgetting their major tasks as college students. In brief, there is still a lot to do to help students make good use of computers. _ has become a common part of peoples life. And _ has always aroused the greatest concern. What impresses us most is _. The reasons _ are varied.Among the various reasons _ plays an important part. That is to say, _ . What is more, _. For example, _.When talking about _. On the one hand, _. On the other hand, _. In brief, _.We have witnessed the rapid growth of the students use of computers in recent years. According to the chart, from 1990 to 1995, the average hours that students spent on computers in every week were only doubled. And in 2000, college students averagely spent 20 hours per week on computer, which is five times as large as that of 1995. Many reasons contribute to this tremendous growth.To begin with, the price of PC is becoming cheaper and cheaper, so many students can have their own computers. Moreover, many net bars can provide students convenient access to computers. In addition, Internet provides people an amazing world to explore. As a result, computers have a irresistible attraction to them. As to me, I think there are still disadvantages and problems in student use of computers. First of all, students dont have enough skills to command computers, which limits them to the full use of computers. Besides, students who are short of self-disciplines may forget their main task of study. To conclude, we still need take effective measures to make progress in student use of computers.We have witnessed _. According to the chart, _. And_. Many reasons contribute to _.To begin with, _. Moreover, _. In addition, _. As a result, _.As to me, _. First of all, _. Besides, _. To conclude, _.Writing Changes in College Students Ways of Spending Summer Vacation1. State the changes briefly2. Give possible reasons for the changes3. Predict the trend of the changesChanges in Methods of Travel1. 简要描述图中的内容2. 按时间顺序对图中变化展开说明3. 简单预测未来发展Survey of Income Sources of American and Chinese Students1. 概括说明中美大学生的主要收入来源2. 分析产生这种现象的可能原因3. 我对将来趋势的预测学生作文中常见的严重错误非完整句错误：将句子中的某一部分当作一个句子原句：Without environment , without development.修改句：原句：He failed the exam. Which disappointed his parents.修改句：原句：We must face the fact. That we might lose our deposit.修改句：原句：I think this film is poor. Even though so many people enjoy seeing it.修改句：断句错误：原句：I didnt go because Im afraid.修改句： 非谓语动词做状语时，其逻辑主语要和句子的主语保持一致原句：Looking out of the window, the grassland stretches as far as the eye can reach.修改句：原句：Rotten in the cellar, he had to throw away the potatoes.修改句：原句：To swim properly, a course of instruction is necessary.修改句：原句：Returning home in a taxi, the music of the opera still seemed to sing in our ears.修改句：原句：I had a summer job that year, therefore, enabling me to stay in school for another term.修改句：主谓一致的错误原句：To fight and to win is their aims. 修改句：原句A variety of goods is for sale.修改句：平行结构的错误原句：Environment and development interaction and influence each other.修改句：原句：I will neither help you nor him.修改句：原句：Mary ran out of the room and crying./修改句：时态语态混乱原句：The old house are putting down.修改句原句：I decided to go to the library as soon as I finish what I did.修改句Relationship Between Teachers and Students It is well-known that a good relationship between teachers and students is essential to teaching and learning. In the first place, teachers teaching achieves the desired results. In the second place, students can do well in their studies. On both occasions, teachers and students can cooperate well with a good relationship. Nevertheless, this ideal relationship depends on the mutual efforts of both sides. Some people find teachers and students should try to understand each other. For one thing, students should respect their teachers and what their teachers do for them. For another, teachers should also be kind, patient and impartial to all students. As matter of fact, sometimes things are not so simple; unhappy misunderstandings may arise now and then. First of all, both sides should make efforts to remove them. In addition, they can explain what they think to each other and learn to think more for other people. Therefore, if both sides treat each other in a friendly way, misunderstandings will be easily cleared up.Development and Environment Some people believe that the development has been largely determined by the environment. The truth is deep and profound. As we know. Without good environment, human beings cant exist, not to mention the