SCI论文写作是将研究成果向读者展示的重要环节，论文写作除了思路外，英文表达也是众多初学者面临的重要问题。英文的论文写作其实也是有套路的，了解科学论文写作常用句型及表达，会对你的SCI写作如虎添翼。小编吐血整理了各种句型供大家参考！
01
研究现状的叙述
The study of research contents has been widely reported / found / published in the literature
Many studies / researchers / investigations / experiments on research contents have been performed / done / published
Previous studies have reported ......
A considerable amount of literature has been published on X. These studies ......
The first serious discussions and analyses of X emerged during the 1970s with ......
Recent evidence suggests that .......
Several attemps have been made to ......
A number of researchers have reported ......
What we know about X is largely based upon empirical studies that investigate how ...... Studies of X show the importance of .....
02
指出存在问题
However, research contents have not been considered / taken into account / have been ignored
However, few studies have been done on / few studies have been published on / few studies have reported on……
03
研究内容
This paper describes / presents / develops / proposes a new model / theory / method forresearch contents
The objective / purpose / aim of this paper / study is to develop a new model / theory / method for research contents
In this paper, a general numerical analysis theory is presented, which is capable of solving……
Research contents is presented in this paper
04
研究方法存在的问题、局限性
Another problem with this approach is that it fails to take X into account.
Perhaps the most serious disadvantage of this method is that .....
Difficulties arise, however, when an attempt is made to implement the policy.
Nevertheless, the strategy has not escaped criticism from governments, agencies and academics.
One major drawback of this approach is that ......
The main limitation of biosynthetic incorporation, however, is ......
However, this method of analysis has a number of limitations.
However, approaches of this kind carry with them various well known limitations.
All the studies reviewed so far, however, suffer from the fact that .......
However, there are limits to how far the idea of/concept of X can be taken.
However, such explanations tend to overlook the fact that......
However, one of the problems with the instrument the researchers used to measure X was ......
The generalisability of much published research on this issue is problematic.
The experimental data are rather controversial, and there is no general agreement about ......
Such expositions are unsatisfactory because they .....
However, few writers have been able to draw on any structured research into the opinions and attitudes of ......
The research to date has tended to focus on X rather than Y.
The existing accounts fail to resolve the contradiction between X and Y.
Researchers have not treated X in much detail.
Although extensive research has been carried out on X, no single study exists which adequately covers ......
However, these results were based upon data from over 30 years ago and it is unclear if these differences still persist.
X's analysis does not take account of ..... nor does he examine ......
05
强调一个特殊的方法
Article references were searched further for additional relevant publications.
Articles were searched from January 1965 until April 2008.
Publications were only included if .......
X was prepared according to the procedure used by Patel et al. (1957).
The synthesis of X was done according to the procedure of Smith (1973).
X was synthesised using the same method that was detailed for Y, using ......
This compound was prepared by adapting the procedure used by Zhao et al. (1990).
For this study the X was used to explore the subsurface ......
An alternative method for making scales homogenous is by using .....
06
描述样品的特性
The initial sample consisted of ….students of whom …..
All studies described as using some sort of X procedure were included in the analysis.
A systematic literature review was conducted of studies that .....
All of the participants were aged between 18 and 19 at the beginning of the study.....
Two groups of subjects were interviewed, namely X and Y. The first group were ......
A random sample of patients with ...... was recruited from .......
Forty-seven students studying X were recruited for this study.
The students were divided into two groups based on their performance on ......
The project used a convenience sample of 32 first year modern languages students.
Just over half the sample (53%) was female, of whom 69% were ......
Participants were recruited from 15 clinics across ......, covering urban and rural areas ......
Eligibility criteria required individuals to have received ....
Five individuals were excluded form the study on the basis of ....
Eligible women who matched the selection criteria were identified by ......
Semi structured interviews were conducted with 17 male offenders with a mean age of 38 years
A comparison group of 12 male subjects without any history of X was drawn from a pool of .......
07
描述目的
In order to identify the T10 and T11 spinous processes, the subjects were asked to ......
In order to understand how X regulates Y, a series of transfections was performed.
To enable the subjects to see the computer screen clearly, the laptop was configured with ......
To see if the two methods gave the same measurement, the data was plotted and ......
To control for bias, measurements were carried out by another person.
To measure X, a question asking ...... was used.
To determine whether ......, KG-1 cells were incubated for ......
To establish whether ......,
To increase the reliability of measures, each X was tested twice with a 4-min break between .......
To compare the scores three weeks after initial screening, a global ANOVA F-test was used The vials were capped with ..... to prevent volatisation.
In an attempt to make each interviewee feel as comfortable as possible, the interviewer ......
For the purpose of height measurement, subjects were asked to stand .....
For the purpose of analysis, 2 segments were extracted from each ......
For the estimation of protein concentration, 100 μL of protein sample was mixed with ......
08
重申研究目的
Part of the aim of this project is to develop software that is compatible with X operating system.
The main purpose of this study is to develop an understanding of ......
There are two primary aims of this study: ① To investigate ...... ② To ascertain ......
The aim of this research project has therefore been to try and establish what ......
The aim of this study is to investigate the differences between ......
The main aim of this investigation is to assess the doses and risks associated with ......
This thesis intends to determine the extent to which ...... and whether .....
This thesis will examine the way in which the .......
This research examines the emerging role of X in the context of ......
This dissertation seeks to explain the development of .......
This case study seeks to examine the changing nature of .....
Drawing upon two stands of research into X, this study attempts to ......
The aim of ths study is to shine new light on these debates through an examination of ......
The major objective of this study was to investigate ......
One purpose of this study was to assess the extent to which these factors were ......
The objectives of this research are to determine ......
This study therefore set out to assess the effect of management by ......, and the effect of ......
This study systematically reviews the data for......, aiming to provide clarity surrounding the role of .....
09
研究问题/假设
The central question in this dissertation asks how ......
In particular, this dissertation will examine six main research questions:
The hypothesis that will be tested is that ......
The key research question of this study was thus whether or not ......
This study aimed to address the following research questions:
Another question is whether ......
10
介绍方法、数据的来源
This dissertation follows a case-study design, with in-depth analysis of ......
This study was exploratory and interpretative in nature.
The approach to empirical research adopted for this study was one of a qualitative, semi- structured interview methodology.
By employing qualitative modes of enquiry, I attempt to illuminate the ......
This work takes the form of a case-study of the ......
Both qualitative and quantitative methods were used in this investigation.
Qualitative and quantitative research designs were adopted to provide both descriptive, interpretive and empirical data.
The research data in this thesis is drawn from four main sources: .....
The study was conducted in the form of a survey, with data being gathered via .......
Five works will be examined, all of which .....
11
表明自己研究局限性
Due to practical constraints, this paper cannot provide a comprehensive review of ...... It is beyond the scope of this study to examine the .......The reader should bear in mind that the study is based on a small sample of ......
Another potential problem is that the scope of my thesis may be too broad. A full discussion of X lies beyond the scope of this study.
12
概况研究框架
The overall structure of the study takes the form of six chapters, including this introductory chapter.
My thesis is composed of four themed chapters.
Chapter Two begins by laying out the theoretical dimensions of the research, and looks at how ......
The third chapter is concerned with the methodology used for this study.
The fourth section presents the findings of the research, focusing on the three key themes that have been identified in analysis.
XXX analyses the results of interviews and focus group discussions undertaken during the course of this research, ......
The final chapter draws upon the entire thesis, tying up the various theoretical and empirical strands in order to ......
Finally, the conclusion gives a brief summary and critique of the findings,
......and includes a discussion of the implication of the findings to future research into this area.
...... Finally, areas for further research are identified.
13
解释关键术语
While a variety of definitions of the term X have been suggested, this dissertation will use the definition first suggested by Smith (1968) who saw it as .......
Throughout this paper the term X will refer to/will be used to refer to .......
In this dissertation the acronym/abbreviation XYZ will be used.
According to ...... (2000) X can be defined as follows; " X is one of ...... "
The term X is a relatively new name for ...... commonly referred to as ....
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