如何维护友情英语作文【一】
Nowadays, many famous university campuses have become one of the popular tourist attractions. It has been shown on TV and on the radio that every year thousands and thousands of middle school students visit Tsing Hua University and Peking University and other famous universities in China. In the place far away from the capital city, the local students also visit the universities famous in their own province.
So far as the present situation is concerned, is it a good or bad thing to open the university campus for tourists? Different people have different opinions. On one hand, some people argued that it is a good thing for the students to visit the famous university campus in that it can enable the middle students to get more information about the university and they can have enough time and opportunity to prepare themselves with the chance to get into the university. On the other hand, some people hold a negative view about this phenomenon. In their opinion, the public tourism will have negative effect on the universities because it will not only do harm to the environment but also to the intellectual atmosphere.
In my opinion, the tourism to the universities is not a good thing. The campus is mainly a place for study. With the increasing tourism on the campus, it will ruin the spiritual atmosphere in this learning field.
首先，提纯范文 “谋篇布局”及结构模板。
第一段：提出问题或现象。Nowadays, … … have become one of the popular … …. It has been shown on TV and on the radio that … ….
第二段：正反列举人们的看法。So far as the present situation is concerned, is it a good or bad thing to … …? Different people have different opinions. On one hand, some people argued that it is a good thing for … … in that … …. On the other hand, some people hold a negative view about this phenomenon. In their opinion, … … will have negative effect on … … because it will not only do harm to … … but also to … ….
第三段：摆明自己观点。In my opinion, … … is not a good thing. … … With the increasing … …, it will ruin … ….
其次，提纯范文“段落写作”。
段落写作分为统一性，连贯性和完整性三方面。
统一性(unity：段落开头的主题句应该做到不可太宽泛，也不可太具体，做到有较强的概括性才能使下文做到有的放矢的展开。范文第二段首句以设问的方式提出一个问题is it a good or bad thing就有很强的概况性。下文自然会一方面从好的方面说明，另一方面从坏的方面说明。
连贯性(coherence：关联词是使文章段落之间相互连贯的必要条件。范文中nowadays, on one hand, on the other hand, in one’s opinion即以“启承转合”递进的顺序是文章条理清晰，层层展开。
完整性(completeness：以设问句“So far as the present situation is concerned, is it a good or bad thing to open the university campus for tourists?”开头，这是平时较少运用的段落写作方式——设问法。“On one hand … …. On the other hand, … ….”是段落写作分类列举法的典型用法。
再次，提纯范文“句子写作”。
1. It has been shown that … …
类似句型：It is known to us that … …
It is said that … …
It is reported that … …
It is controversial that … …
2. “… … Tsing Hua University and Peking University and other famous universities … …。”——并列句。并列句是简单的复杂句。但其运用方法并不简单，注意练习并接句的使用，会使句子显的更加饱满。
3. enable v. 使…能够
I gave him full directions to enable him to find the house.
4. in that = because
表“因为”的连词还有since, for, as，如：
The boy was absent because he was ill. = The boy was absent since he was ill.
此句以我们常用的人称开头，句式简单，我们可以通过把since提前改变句式，如：
Since the boy was ill, he was absent. 句式多样化。
最后，提纯范文“措辞”。
1. attraction n. 具有吸引力的事情。
2. thousands and thousands 成千上万的
形容“多”的表达方法：millions and millions
a multitude of
a great deal of
a large amount of
plenty of
many a
3. “some people argued that … …”中的“argue”并不是“讨论，辩论”的意思，而是“认为”。
I argue that … …
I maintain that … …
I claim that … …
I insist that … … = I think that … …
I hold that … …
I assert that … …
I assume that … …
4. negative adj. 否定的.，相反的
hold negative view = hold opposite opinions
5. phenomenon n. 现象
social phenomenon 社会现象
natural phenomenon 自然现象
6. intellectual adj. 聪明的= intelligent, bright, clever
(选词策略：使用最近所学的单词，如intellectual > intelligent > bright > clever
在分析并掌握范文之后，我们需要运用范文知识练习仿写。笔者运用2005年12月范文中的模板结构仿写了2006年12月的四级作文，以供参考：
1. 许多人喜欢在除夕夜看春节晚会
2. 但有些人提出取消春节晚会
3. 我的看法
Nowadays, the Spring Festival Evening has become one of the popular topic and attractions during every traditional New Year’s Eve. It has been shown on TV and on the radio that every year thousands and thousands of Chinese people appear to be accustomed to enjoying the sights and sounds of a brilliant feast, while gathering with their beloved family.
However, an increasing number of people have voiced different opinions towards it. So far as the present situation is concerned, is it a good or bad thing to cancel the Spring Festival Evening? Different people have different opinions. On one hand, some people argued that it is a good thing to amuse the audience in that it is composed by a numerous adequate programs, such as the emotional song, the graceful dance, the funny short sketch, the amusing comic dialogue, the delightful magic, and the marvelous acrobatics and so on. On the other hand, some people hold a negative view about this phenomenon. In their opinion, the Spring Festival Evening will have negative effect on the family harmony because it will not only do harm to having the talks between family members on the Spring Festival Eve but also to enjoying the gourmet meal in a fancy restaurant.
In my opinion, the Spring Festival Evening is a good thing. It may not remain a must for all people, but it can bring us a strong sense of festivity and serve as an alternative among the variety of holiday activities. With the increasing audience of the Spring Festival Evening, it will ruin a distinctive culture during the Spring Festival vacation.
如何维护友情英语作文【二】
1.绕组故障。绕组故障包括相间短路、对地击穿、匝间短路的断线。相间短路是由于主绝缘老化、有破裂、断折等缺陷；变压器油受潮；线圈内有杂物；短路冲击变形损坏，因此要定期检测低压开关灵敏性、可靠性，防止因电缆短路造成变压器的损坏。不允许带负荷停送变压器。过电压冲击及引线间短路所造成，会使瓦斯、差动、过流保护动作，防爆管爆破。应测量绝缘电阻及吊芯检查。绕组对地绝缘击穿，是由于绝缘老化、油受潮、线圈内有杂物、短路冲击和过电压冲击所造成，会使瓦斯继电器动作。应测量绕组对油箱的绝缘电阻及做油简化验检查。匝间短路是由于匝间绝缘老化，长期过载，散热不良及自然损坏；短路冲击振动与变形；机械损伤；压装或排列换位不正确等原因造成。匝间短路会使瓦斯继电器内的气体呈灰白色或蓝色；油温增高，重瓦斯和差动保护动作跳闸。断线是由于接头焊接不良；短路电流冲击或匝间短路烧断导线所致。断线可能使断口放电产生电弧，使油分解，瓦斯继电器动作。应进行吊芯、测量电流和直流电阻进行比较判断或测量绝缘电阻判断。
由于上述种种原因，在运行中一经发生绝缘击穿，就会造成绕组的短路或接地故障。匝间短路时的故障现象是变压器过热油温增高，电源侧电流略有增大，各相直流电阻不平衡，有时油中有吱吱声和咕嘟咕嘟的冒泡声。发现匝间短路应及时处理，因为绕组匝间短路常常会引起更为严重的单相接地或相间短路等故障。
2.套管故障。这种故障常见的是炸毁、闪落和漏油。其原因有：
(1密封不良，电容芯子制造不良，内部发生游离放电，套客脏污严重及瓷件有机械损伤，均会造成套管闪落或爆炸。
(2呼吸器配置不当或者吸入水分未及时处理。
3.分接开关故障。常见的故障是表面熔化与灼伤，相间触头放电或各接头放电。主要原因有：
(1连接螺丝松动；
(2带负荷调整装置不良和调整不当；
(3分接头绝缘板绝缘不良；
(4接头焊锡不满，接触不良，制造工艺不好，弹簧压力不足；
(5油的酸价过高，使分接开关接触面被腐蚀。
