Introduction部分确立主题的相关句式整理
在某个学科领域内确立主题的重要性
01. A key aspect of X (X代表某个学科领域或某个话题) is ……
02. A primary concern of X is ……
03. X is a classic problem in ……
04. X is of interest because ……（of+抽象名词=该抽象名词的形容词）
05. X is a dominant （显著的）feature of ……
06. X is a fundamental property （基本性质）of ……
07. X is an increasingly important area in ……
08. X is at the heart of our understanding of ……
09. X is a major area of interest within the field of ……
10. X has been studied by many researchers using ……
11. X has been the subject of many classic studied in ……
12. X has been an important concept in the study of the ……
13. X has been the subject of much systematic investigation.
14. X has long been a question of great interest in a wide range of fields.
15. The role of X in Y has received increased attention across a number of disciplines in recent years.
16. The concepts of X and Y are central to（对…极为重要的）……
17. The theory of X provides a useful account （报告/说明） of how ……
18. The issue of X has received considerable critical attention.
19. Central to the entire discipline of X is the concept of ……
20. Studies on X represent a growing field ……
21. Understanding the complexity of X is vitally（极其）important if ……
22. Investigating X is a continuing concern withn ……
23. One of the most significant current discussion in X is ……
在给定时间框架下，确立某个学科领域内的主题重要性
01. X was one of the most popular Ys during ……
02. X proved an important literary genre (文学体裁/流派) in the early Y community.
03. X has received considerable scholarly attention in recent years.
04. Traditionally, Xs have subscribed to the belief that ……
05. The past thirty has seen increasingly rapid advances in the field of ……
06. The discovery of X in 1986 has triggered a huge amount of innovative scientific inquiry.
07. Over the past century, there has been a dramatic increase in ……
08. Recent trends in X have led to a proliferation （激增/涌现） of studies that ……
09. Recently, a considerable literature has grown up around the theme of ……
10. Recent developments in the field of X have led to a renewed （再次兴起的）interest in ……
11. In recent years, researches have shown an increased in ……
12. In the last few decades, there has been a surge of （高涨的）interest in the ……
13. For more than a century, scientists have been interested in the existence of ……
14. During the last decade, the link between X and Y has been at the centre of much attention.
在社会或世界中确立主题的重要性
1. X is widespread in ……
2. X is fundamental to ……
3. X is a major contribution to ……
4. X is an important aspect of ……
5. X is frequently prescribed for （被用于）……
06. X is one of the key components of Y.
07. X is fast becoming a key instrument in ……
08. X is the most widely distributed species of ……
09. Xs have emerged as powerful platforms for ……
10. X is essential （必不可少的）for a wide range of technologies.
11. Xs are the most potent anti-flammatory agents（最强效的抗炎药）known.
12. X is a common condition which has considerable impact on ……
13. X is important for a wide range of scientific and industrial processes.
14. Xs are one of the most widely used groups of antibacterial agents (抗菌剂) and ……
15. X is an important component in the climate system, and plays a key role in Y.
16. Xs were the most serious and widespread popular disturbances（紊乱/扰动）to occur in ……
17. There is evidence that X plays a crucial role in regulating（调节/控制）……
18. In the new global economy, X has become a central issue for ……
19. Determining the impacts of X on Y is important for the future of ……
20. Evidence suggests that X is among the most important factors for ……
21. There is a growing body of literature that recognizes the importance of ……
22. In the history of development economics，X has been thought of as a key factor in ……
在给定时间框架下，在社会或世界中确立主题的重要性
1. One of the most important events of the 1970s was ……
2. Over the past century, there has been a dramatic increase in ……
3. Recent developments in X have heightened（加强/提高）the need for ……
4. Recent trends in X have led to a proliferation of studies that ...…
5. The last two decades have seen a growing trend towards ……
6. The past decade has seen the rapid development of X in many ……
7. X has experienced unprecedented growth over the past 100 years.