B1 Point 4 in the category of discourse markers is defined:
in writing ORGANISING – range of phrases to introduce contrasting statements.
The English Grammar Profile uses two examples, both of which clash against the English Vocabulary Profile:
We have accidentally double posted this topic. The other page has more expert corpora examples.
PELIC STUDENT EXAMPLES:
On the contrary, doing housework and taking care of children are no longer women’s work.
Chinese, Female, Level 4, Writing Class.
On the other hand, TV may waste someone‘s time if watching it is not controlled.
Arabic, level 3, Writing Class.