引言部分應(yīng)該為讀者提供一個(gè)關(guān)于你的主題的簡(jiǎn)要概述和進(jìn)行研究的原因。關(guān)于單詞數(shù)量，引言通常占論文的10-15％,。通常建議在完成論文的其他部分后撰寫論文的引言部分,。這是因?yàn)樵谀憧吹酵暾?/span>的文章之前,，很難弄清楚在論文的引言部分到底要寫些什么,。你應(yīng)該對(duì)你所選擇的主題領(lǐng)域非常有信心,，并通過適當(dāng)?shù)膮⒖嘉墨I(xiàn)來支持你的論點(diǎn),。

研究論文的引言部分可能包括以下 7 大類內(nèi)容,，附上常用的寫作模板：

1. General introduction:

· Research on __ has a long tradition

· For decades, one of the most popular ideas in __ literature is the idea that __

· Recent theoretical developments have revealed that __

· A common strategy used to study __ is to __

· This research constitutes a relatively new area which has emerged  from __

· These approaches have been influential in the field because of __

· In the past several decades, __ have played an important  role in __

· There are growing appeals for __

· This is the field of study that deals with __

· Most of the theories of __ are however focused on explaining __

· There are three major theoretical and conceptual frameworks for __

· The field has gradually broadened as __

· This field of study is sometimes referred as __

· This has been widely adopted in the field of __

· This thesis considers the field of __ as the main subject of its study

· One of the major topics to be investigated in this field is __

· This is now a mature field which is now being spun out into commercial applications __

· This field is maturing, with a wealth of well-understood methods and algorithms __

· This field closely follows the paradigm of __

· The field has met with great success in many problems __

· The field only really took off in the late __ as it became more accessible to __

· This is not particularly new and has been used for many years in the field of __

· This field closely follows the paradigm of __

· Widely considered to be a good way to __

· This has been widely adopted in the field of __

· This is more widely used at the time of __

· This phenomenon has been widely observed

· A common technique is to __

· This is a technique common in __

· There are several common kinds of __

2. Problem definition:

· This seems to be a common problem in __

· This leads to myriad problems in __

· The main problem is that __

· There is a further problem with __

· One primary problem with __ is that __

· The methods are not without their problems as will be discussed in __

· The foremost problems are the facts that __

· This makes up for the problem of __

· This seems to be a common problem in __

· This is a complex problem and to simplify it requires __

· A challenging problem which arises in this domain is __

· These problems are difficult to handle __

· This is typically a complex problem __

· A well-known problem with __  is that it does not take into account the __

· One of the problems is that it considers only the __

· The key problem with this technique is __

· It is usually an ill-posed problem in the case of __

· This problem is well-posed and does not require to impose __

· This appears as a more straightforward problem compared to the __

· This turns out to be even more problematic because __

· The problem with such an implementation is that __

· This poses some problems when carrying out the __

· This problem  has attracted more attention in the field of __

· This is a basic chicken-and-egg problem because __

· Unfortunately, this approach results in problems related to __

· These constraints make the problem difficult to __

· Most of the research in this field is aimed at solving this problem.

· This remains an open problem in the area.

· This problem has received substantial interest.

· These examples highlight the problem that __

· The main practical problem that confronts us is __

3. Gaps in literature:

· There is no previous research using __ approach.

· As far as we know, no previous research has investigated __

· There has been less previous evidence for __

· Other studies have failed to __

· To our knowledge, no study has yielded __

· No study to date has examined __

· Only a few studies have shown __

· However, __ has rarely been studied directly.

· Moreover, few studies have focussed on __

· In particular no study, to our knowledge, has considered __

4. Problems solution:

· One way to overcome these problems is to __

· There are many alternative methods are available for solving these problems.

· In order to rectify the problem of __

· A solution to this problem is proposed in __

· One approach to solve this problem involves the use of __

· An alternative approach to the problem is __

· This can be applied to solve these problems.

· A number of works have shown that this problem can be overcome by using __

· A large number of alternative approaches have been developed over the last few decades to ++

· To overcome this problem, in the next section we demonstrate __

· One way to overcome this problem is to __

· To overcome this problem, some approaches have been made __

· One way of recovering from this problem could be to __

· This has been proposed to surmount the problems caused by __

· A different approach to the traditional problem is given in __

· A whole range of different approaches to the problem are available.

· These techniques have potential to solve contemporary problems in __

· We should tailor specific solutions to specific problems __

· The standard solution to the problem is based on __

· The solution proposed here addresses only the problem of __

· There are techniques that have been developed to solve this problem __

· This problem is usually overcome by __

· There have been several attempts to solve the problem __

· There exist many methods for dealing with this problem __

· Broadly speaking, the problem can be addressed by __

· One of the simplest ways of tackling this problem is __

· This problem has been largely studied and many viable solutions have been found.

· In general, this problem can be tackled in two different ways.

· Other approaches have been shown to cope with the problem more efficiently.

· We will review the main approaches to solve this problem.

· Recently, a more general solution has been proposed for this problem.

· Both these works provide a solution to the problem.

· Recent methods focus on overcoming the problems by proposing different schemes for __

· This strategy is not uncommon in this kind of problems.

· We can apply our algorithm to solve this difficult problem.

· This is how the problem can be tackled __

· We have developed this generic method to solve a variety of problems.

· We will now demonstrate our method on some specific problems.

· Here we solve several problems simultaneously.

· We have undergone a rethinking of the problem by __

· A possible solution to the problem at hand is __

· It is clear that the problem could be easily tackled by __

5. Study motivation:

· It is of interest to know whether __  still hold true.

· It would be of special interest to__

· We therefore analyzed __ and investigated whether __

· For this study, it was of interest to investigate __

· We investigated whether __ can be partly explained by __

· To examine the impact of __, we tested __

· We have investigated the effect of __

· We characterize different aspects of __

· One way to investigate __ was to __

· A new approach is therefore needed for __

· To illuminate this uncharted area, we examined __

6. Aims & objectives:

· The aim is to develop more sophisticated methods for __

· The aim of this work is to develop __

· The aims in this chapter are twofold: First __, Second __

· For our first goal, we focus on two problems __

· The aim here is to investigate __

· The overall goal of this work was to __

· This project aims to develop an overarching framework to __

· The aim of the experiment is to compare __

· The ultimate goal is to produce a __

· The overall goal of this thesis was to pursue __

· After defining the problem we explain the goals of the thesis.

· With this aim in mind, in this paper we present a new method for __

· Our research aims at finding a solution for this challenging problem of  __

· There is no overall goal, apart from __

· We examine some previous work and propose a new method for __

· There are too many simultaneous goals making it difficult to __

· One of the major aims of this work was to create __

· The main objective is to investigate methods for improving __

· The objectives can be restated in the light of __

· The objective is to devise and implement a system for __

· The objectives were partially met by developing a method to __

· The objective is to demonstrate the feasibility of __

· One of the objectives is to improve the __

7. Significance and advantages of your work:

· This thesis documents several key contributions made to the fields of __

· This thesis has made a number of significant contributions to the field of __

· The contributions made here have wide applicability.

· The contributions made should be of wide interest.

· The first main contribution proposed in this field is a __

· The contributions of this work are presented as follows: __

· The main achievements, including contributions to the field can be summarised as follows: __

· We summarize the main contributions of this thesis.

· The key contribution of this work is the solution it provides __

· It has numerous advantages as explained here __

· It has significant benefits in terms of __

· There is a clear advantage in following the methods of __

· This has particular advantages over other __

· All of these advantages make it particularly valuable in __

· One of the primary benefits of this algorithm is __

· This gives a significant advantage because __

· These point out the advantages and practicability of __

· One of the key benefits of the algorithm is __

· The main advantage compared to previous method is __

· This present some practical advantages.

· The main advantage is the simplified pattern.

· One practical advantage of the method is that it can be used in __

· The advantage becomes all the more significant when __

· In comparison with other techniques, this method has the advantage of __

· The most important advantage of this method is that it can perform very well in __

· It yielded significant speed advantages when __

· The benefit of using the __ is expected to __

· The main advantage is that we are able to __

· To give some idea of the benefits of this method __

· The additional advantage of using this method is that it results in __

· This is an important advantage of this algorithm __

· These are the main advantages of this method.