Literature review

The introductions define the context of researches. Introductions help to reader about what they can expect to find within of academic paper. Introductions also help to researchers to define and focus in their goals and researches’ scopes.  Due to introductions importance a lot of work has been done about them. I found around fifty studies about introductions in diverse areas, such as, agriculture, applied linguistics biology and of course computer sciences.  The most popular discipline among these papers were linguistic with eight studies and computer science with four studies. Twenty seven studies were done using CARS model as framework and over using the Corpus as Method. In the language, how is expected English with forty eight researches and the second place Spanish and Chinese with four researches each one