1、英文摘要是应用符合英文语法的文字语言，提供论文内容梗概为目的的短文。（内容基本与中文摘要相同，但不用完全逐句对应）。2、英文题目、摘要、关键词自成一页（1页即可），放在中文摘要页之后。3、英文字体与行间距：统一使用“西文字体”中的“Times New Roman”。4、英文题目：使用三号字加粗。5、英文摘要：“Absract”顶格，使用四号字，并加粗。6、英文关键词：“KeyWords”顶格，使用四号字并加粗。组成部分：摘要应具有独立性和自明性，并且拥有与文献同等量的主要信息，即不阅读全文，就能获得必要的信息。对一篇完整的论文都要求写随文摘要，摘要的主要功能有：（1）让读者尽快了解论文的主要内容，以补充题名的不足。现代科技文献信息浩如烟海，读者检索到论文题名后是否会阅读全文，主要就是通过阅读摘要来判断；所以，摘要担负着吸引读者和将文章的主要内容介绍给读者的任务。（2）为科技情报文献检索数据库的建设和维护提供方便。论文发表后，文摘杂志或各种数据库对摘要可以不作修改或稍作修改而直接利用，从而避免他人编写摘要可能产生的误解、欠缺甚至错误。所以论文摘要的质量高低，直接影响着论文的被检索率和被引频次。
A country of southern A Occupying land crisscrossed by ancient invasion paths， Pakistan was the home of the prehistoric Indus Valley civilization， which flourished until overrun by Aryans 1500 BC After being conquered by numerous rulers and powers， it passed to the British as part of India and became a separate Muslim state in The country originally included the Bengalese territory of East Pakistan， which achieved its separate independence in 1971 as B Pakistan became a republic in Islamabad is the capital and Karachi the largest Population: 165，000，
As the economic development ，people’s living standards and consumption levels have also greatly improve ，but at the same time people’s lives is also an increase in litter ，especially the community environment that we live In the community ，we can see the litters here and there although have cleaners cleaning So facing to the situation ， what can we do ? Certainly what we can do is protecting the health and environment of the community ，because it is our shared home ，protecting it are the responsibility of every one of us If we not ，what we get is the disease and pollution that is harmful to our body! Thus in oder to make our home more clean and beautiful and give our parents，children，neighbors a health entertainment，lets hand in hand to potect the community health!
