SCI的Introduction在学术界具有举足轻重的地位。它不仅是引导读者阅读和理解全文的重要部分，更是文章成功的关键之一。许多审稿专家直言，一个好的引言相当于文章成功了一半，其重要性甚至超过了摘要，

今天我们就来看一些Introduction中常用于阐述课题重要性的词汇和短语：

(a) basic issue

(a) central problem

(a) challenging area

(a) classic feature

(a) common issue

(a) considerable number

(a) crucial issue

(a) current problem

(a) dramatic increase

(an) essential element

(a) fundamental issue

(a) growth in popularity

(an) increasing number

(an) interesting field

(a) key technique

(a) leading cause (of)

(a) major issue

(a) popular method

(a) powerful tool/method

(a) profitable technology

(a) range (of)

(a) rapid rise

(a) remarkable variety

(a) significant increase

(a) striking feature

(a) useful method

(a) vital aspect

(a) worthwhile study

(an) advantage

attracted much attention

benefit/beneficial

commercial interest

during the past two decades

economically important

(has) focused (on)

for a number of years

for many years

frequent(ly)

generally

(has been) extensively studied

importance/important

many

most

much study in recent years

nowadays

numerous investigations

of great concern

of growing interest

often

one of the best-known

over the past ten years

play a key role (in)

play a major part (in)

possible benefits

potential applications

recent decades

recent(ly)

today

traditional(ly)

typical(ly)

usually

well-documented

well-known

widely recognised

widespread

worthwhile

应用实例

? A major current focus in population management is how to ensure sustainability of...

? Numerous experiments have established that ionising radiation causes...

? Low-dose responses to radiation have generated considerable recent research interest.

? Analysis of change in the transportation sector is vital for two important reasons: ...

? PDA accounts for over 95% of all pancreatic cancers.

? It is generally accepted that joints in steel frames operate in a semirigid fashion.

? Nanocrystalline oxide films are attracting,videspread interest in fields such as ...

? The importance of strength anisotropy has been demonstrated by...

? Convection heat transfer phenomena play an important role in the development of. ..

? For more than 100 years researchers have been observing the stressstrain behaviour of. ..

? Much research in recent years has focused on carbon nanotubes.

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