How to start an essay introduction「写作指南」
How to start an essay introduction? When you start writing an essay, you write an introduction first. Its mission is to present your viewpoint on the topic you are about to cover. Although it sounds pretty simple, it is actually quite tricky. It may take time and effort to create a brief, informative, and captivating paragraph that will encourage the reader to check the rest of the essay.This article provides you with relevant writing essay introduction tips, steps and examples for your reference.
一.how to start an essay introduction
An introduction of an essay is your abstract plan for the whole essay. A good welcoming paragraph serves two strategic functions. Firstly, it informs the reader about the essay topic and gives some explanation to the major idea. Secondly, it encourages the reader to check the rest of your essay. Thanks to a well-written introduction, you will make your work’s “first impression” positive. No need to say how crucial it is! Your first words determine the tone of the further content. It will make your reader involved right from the very beginning.
一篇文章的导言是你对整个文章的抽象计划。一个好的欢迎段落有两个战略作用。首先，它告诉读者文章的主题，并对主要思想给出一些解释。其次，它鼓励读者检查你的文章的其余部分。多亏了一篇写得很好的介绍，你的作品会给人留下积极的“第一印象”。不用说这有多重要!你的第一个词决定了后面内容的基调。这会让你的读者从一开始就参与进来。
Regardless of the general size of your essay, the introduction shouldn’t be too long. If you are writing a brief personal essay that follows the standard structure, you may limit the introduction to a single paragraph. If you are writing an extensive research essay, you can have just several paragraphs in the welcoming section. Ideally, you should make it cover around 8% of the total length.
二.how to start an essay
How to start essay from scratch? What needs to be done to create a worthy piece of content? Here are several useful tips to be followed:
如何从零开始写文章?需要做什么才能创造出有价值的内容?以下是一些有用的建议:
1.Know your topic
Before you start writing an introductory paragraph, conduct thorough research on the selected topic. Without knowing what you want to write about, you won’t be able to create something worthy. You need to know as much as possible about your topic to express the right opinion to the reader.
2.Conduct the research
It is hardly possible to trust your personal knowledge if you don’t have sufficient expertise in the field you are writing about. Doing through research will help you make your thesis statement. And it will also guide you in outlining the content of your essay. So, be careful with the details that you are adding to your introduction. Make sure that they are relevant to the main topic of your narration.
如果你在你所写的领域没有足够的专业知识，你几乎不可能相信你的个人知识。做研究将有助于你的论文陈述。它也会指导你概述文章的内容。所以，要注意你在介绍中添加的细节。确保它们与你的叙述主题相关。
3.Set the tone of narration
Whether you want to lead the narration in a formal or informal way, you will need to set the tone at the very beginning. Formal writing will have a polite and emotionless tone because the focus is set on facts themselves. Meanwhile, informal writing will be filled with emotions due to the integration of “fancy” words, slang, and figures of speech. The tone of an introduction will determine the format of relationship between you and your reader.
4.State the purpose and frame up the context
A good introduction indicates the context and direction for the reader. It explains why you are writing about the topic, and what you are going to achieve with it. This way, you show why your essay is worth the reader’s attention.
好的导言为读者指明了背景和方向。它解释了你为什么要写这个主题，以及你要用它达到什么目的。这样，你就显示了为什么你的文章值得读者关注。
5.Express a clear point of view
An introduction must demonstrate your attitude to the specific topic. You must mention your thoughts and opinions, as well as your personal feelings about the subject matter. Ideally, a well-written introductory paragraph should do this in a single sentence, namely a thesis statement. It’s reasonable to put your main statement at the beginning or the end of the introductory paragraph. As the practice shows, an average reader pays most attention to these parts.
6.Lead the reader throughout the narration
The reader should be guided throughout the essay. And your goal is to be his/her guide by explaining what to expect in the body of your essay. By mentioning the major ideas and thoughts in the introduction, you will let the reader focus on them in the following paragraphs.
整篇文章都应该引导读者。你的目标是成为他/她的向导，通过解释你的文章的主体部分。通过在引言中提到主要的观点和想法，你将让读者在接下来的段落中关注它们。
三．essay introduction example
Prompt:The title of this essay is:Genome Sequencing: Its Introduction, Types, Uses, And Its Impact On Human Life.This is a complete article to help you understand the role of the introduction
Introduction
Sequencing is the arrangement of nucleotides. It includes different technologies that are used to arrange or know the arrangement of adenine, guanine, cytosine and thymine. It is used for molecular study of genomes and protiens that are encoded. Information that’s obtained by sequencing help us to understand the changes in genome of an organism. Even by sequencing we can understand the effect of phenotypes on genome.
DNA sequencing technique is also known as electrophoresis. It separates the pieces of DNA that are different in length one by one. In this technique the DNA that is supposed to be sequenced is present at the end of the gel. Gelatin type substance runs down. Gel contains electrodes when current is provided the molecules move. Smaller molecules move rapidly while larger molecules take time in this way DNA molecules are separated.
TYPES OF GENOME SEQUENCING
There are different types of genome sequencing. Just by focusing on very specific areas of DNA the whole genome can be sequenced. Names of different types of sequencing are given below.
Whole genome sequencing
De novo sequencing
Targeted genome sequencing
Exome pulldown
Whole Genome sequencing:
It is the process of determining the complete sequence of DNA of any kind of organism at a single time. In this type sequence of chromosomal DNA and mitochondrial DNA are obtained at the same time. Basic purpose is to map out the uniqueness of DNA of a specific person. A doctor or a genetic counsellor can do it if patient is suffering from genetic disorder. It can be used for different purposes.
It can be used in agriculture.
It can be used in Public health
This technique is so versatile. It can be used in variety of settings and variety of different reasons. With whole genome sequencing we can identify what kind of pathogen is present within a specific person or a specie. Even with the help of this sequencing we can identify that what kind of bacteria can effect human beings to what extent. In the given diagram process of whole genome sequencing is shown
DE NOVO SEQUENCING
De novo is a Latin word which means again or anew. It is a form of peptide sequencing that is performed without prior knowledge of amino acids sequence. This method can obtain the sequence without protein databases. It can overcome the limitations of data base dependent methods like peptide mass fingerprinting. In addition it can be used for un sequenced organisms antibodies and peptides with post translational methods.
This is the type of sequencing when the whole genome is sequenced for the 1st time without having REFERENCE GENOME. It is typically accomplished by arranging whole genome in such a way that it can be read a full sequence. They yield a primary genetic sequence of a particular organism if the data is not previously available.
Targeted genome sequencing
As it is clear from its name that targeted genome sequencing basically focus on a targeted area of interest within the genome.
There are many purposes for which targeted genome sequencing is used one of them is to find ‘single nucleotide polymorphisms’. They bring the most common type of variations within the organism so by gaining the knowledge about snps it will be easy for the scientists to recognize the diseased gene.
During targeted genome sequence the amplification of gene of interest is done. This process of amplification is called polymerase chain reaction. After amplification the high throughput sequencing is done. Time needed for sequencing process is reduced by this method. It allows for more in depth studies of region of genome.
Different focused panels are made so that they can study about those genes that are associated with diseases.
Exom Pulldown
Exom pulldown sequencing is a type of targeted sequencing. Targeted sequencing is basically defined as the type in which the researchers focus only on the specific areas within a genome. In case of exom pulldown sequencing, the researchers focus only on the genes of genomes. The exomes contain all the instructions and information needed to make protein in our body. Also the sequencing in an exome is much more cheaper as compared to sequencing the whole genome. In this type of sequencing, the scientists only focus on a small part of the genome so it helps them to focus completely on the parts of the DNA sequence which is more likely to be linked with the disease. But the comes a fact that the exom sequencing is only able to focus on the variants of coding regions that mainly affects the protein function. It is not able to study the non-coding variants that can be related to the disease so for this purpose whole genome sequencing is more suitable.
USES
Many cancer sequencing schemes has helped the doctors by providing the catalogue of somatic mutations. E.g TCGA, ICGC. Most of these kind of projects have both exom and whole genome sequencing elements. So sequencing is very useful to know mutation pathways
Family data base studies are also available so we can understand certain genetic disorders that run through generations. This might seem like old fashion but helping people to combat many diseases. With a large family pedigree you can link the mutations with the history of patient
Now medicines can also be personalized. Just by using SNP arrays many pharmacogenomics projects are on their way
WGS is even very important for the clinical trials. As by knowing the family history before we can easily implement s specific medicine on the group of interest.
Samples of well phenotype cohorts was one of the basic need of genetic studies. Overtime many of these cohorts or interests are grown in number because of sequencing.
IMPACT ON HUMAN LIFE
Impact of Genome Sequencing on Human Life:
Genome sequencing is a technology that has taken the world by storm. It has made many impacts on human life since it has been started. It has positive and negative aspects as well.
POSTIVE IMPACTS
We are aware of the worldwide outbreak of Severe Acute Respiratory Syndrome (SARS). It has affected many people till date. Its origin was not known. Doctors didn’t know the reason of its spread. After that, this virus was studied in detail and its genome was sequenced. The information that the biotechnologists got from its sequencing was quite valuable. They got to know its origin. It also helped in the diagnosis of the disease. This has made a great impact on mankind as well as the technology.
Now humans have better understanding of different viruses and the diseases and now they can treat those diseases by using all the information they have got by genome sequencing.
Genome sequencing has helped to form many things that are of great commercial use hence providing humans with more benefits. The sequencing has helped us to find new growth factors, hormones that were undiscovered before and immunity mediators.
By studying the sequence of different genomes, we can reach the depth of that particular organism whose genome is being studied and this can help us to change it the way we want and in this way GMOs come into existence that are making our life better. For example, cows with more milk production, vegetables with attractive colours and great taste, fruits that are more juicy and tasty, all of this has become possible because of this technology.
Great medicines and great agriculture is the promise of genome sequencing for humans. As we get more information about the sequence of the genome of different organisms, we are more likely to make them better and mould them according to our needs.
The Human Genome Project has made a huge economic impact and its success has earned great amount of money for the workers.
Genome sequencing has made a great impact as it can help to treat rare and inherited diseases. Moreover, it can inform us about a man’s risk of developing and having a disease and his response towards the treatment.
NEGATIVE IMPACTS
The process of genome sequencing is very complexed. It must be made sure that the sequence has been read carefully and with high accuracy. A wrong sequence can change the whole information and then it can change the whole process of developing medicines and treatments and can have a bad impact on everyone.
基因组测序的过程非常复杂。必须确保序列已经被仔细地阅读，并且具有很高的准确性。一个错误的序列可以改变整个信息，然后它可以改变开发药物和治疗的整个过程，可以对每个人产生不好的影响。
Genomic sequencing can unveil such kind of information that can affect a person and his family psychologically. For example, sometimes such condition can occur that causes indecisiveness in the patient and his family regarding their health conditions.
Another negative impact of genome sequencing is that it can cause discrimination that is based upon genetic information among different people. The process of genome sequencing needs a lot of human and computer resources that requires a huge investment and can be quite troublesome for many developing countries.
CONCLUSION
I conclude that gene sequencing has helped us in many ways and we can gain more benefit from it if it is less expensive.
If you are not sure how to present your topic, you can start an essay by writing the body paragraphs. Once you are done with them, you will come back to the introduction. This approach is quite popular among students because it allows them to understand where an essay goes before they come up with an introduction for it.
如果你不确定如何表达你的主题，你可以通过写主体段落来开始一篇文章。一旦你完成了它们，你会回到介绍。这种方法在学生中很受欢迎，因为它可以让他们在构思一篇文章的介绍之前了解文章的走向。
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