Here are some of the specific features of Band 7 writing at IELTS:
Task Achievement: Candidates at this level are able to fulfil all the requirements of a writing task, including addressing the prompt, providing well-developed, coherent, and relevant content, and fulfilling the communicative purpose of the task.
Coherence and Cohesion: Writing at this level is well-organized, with clear and logical connections between ideas and paragraphs, and an effective use of cohesive devices to create a cohesive and coherent text.
Vocabulary and Lexical Resource: Candidates demonstrate a wide and varied vocabulary, using appropriate and accurate language to express their ideas and opinions. They are able to use a range of complex and specialized vocabulary, appropriate to the context and purpose of the task.
Grammatical Range and Accuracy: Writing at this level is characterized by a sophisticated and accurate use of grammatical structures, including a variety of complex sentence types, verb tenses, and modal verbs. Errors are infrequent and do not impede comprehension.
Discourse Management: Candidates demonstrate effective use of a variety of discourse strategies to structure their writing, such as introducing and concluding appropriately, using appropriate referencing and formatting, and maintaining a consistent tone and style throughout the text.
Overall, Band 7 at IELTS indicates a high level of proficiency in English writing, and is a testament to the candidate's ability to communicate effectively and accurately in a wide range of academic and professional contexts.