An Investigation of the Use of Informal Vocabulary in Academic Writing by Saudi ESL/EFL Learners

I need to write about the following points in separate paragraphs(not as an essay);
1.At least one study abstract about the following points to add them to my literature review:
-academic writing based on ESL and EFL learning.
– informal vocabulary in English academic writing or L2 wriring
– language proficiency and its effects on L2 writing and word knowledge
– gender differences in academic writing / or in language proficieny
– transfer/interference from L1 to L2 in writing academic texts.
-error analysis in academic writing
– lexical analysis of word choice in writing
2. differences between formal and informal words I English
3. linguistic definitions of the following terms: informal vocabulary- formal vocabulary- academic literacy- Academic writing- Error analysis- genre- formality scale.