Cohesion
Linking adjuncts
Here are examples of different groups of linking
  adjuncts. These are used to show the connection between one sentence,
  or clause, and another.
Alternatives are used to give an alternative or another point of view.
  They include as opposed to, instead
  of, on the one hand / on
  the other hand, alternatively and otherwise:
-clause + as opposed to + noun /
  -ing form.
  - He spent his time surfing the Internet, as opposed
    to doing his work. 
-clause + instead of + noun / -ing
  form.
  -  She stayed at home instead of going
    out. 
-  Instead of going out she stayed home.
  
-instead with clause.
  -  She didn't go out; she stayed home instead.
  
-  She didn't go out; instead, she stayed at
    home. 
-on the one hand with clause; on
  the other hand with opposing clause.
  - On the one hand
    there are the people who like their jobs. On the other hand, there
    are the people who don't. 
-alternatively with clause.
  -  We could talk about this now. Alternatively,
    we could do it later. 
-otherwise with clause.
  -  We could finish the work now. Otherwise, we
    could finish it tomorrow.
 
Contrasts are used to contrast one clause or sentence with another one,
  or make it seem surprising. In contrasting clauses, we use although
  and though:
  - Although/Though
    they are going to publish the book, there will be some changes. 
- They are going to publish the book, although/though
    there will be some changes.
In contrasting sentences, we use however,
nevertheless and though:
  -  I thought it would be cold. However, it was
    warm and sunny. 
-  The strawberries are growing well. The tomato plants
    have died, however. 
- He didn't study at all. Nevertheless, he managed
    to pass the test. 
- They are going to publish the book. There will be
    some changes to it, though.
However can begin or end a sentence. Though
  cannot begin a sentence.
  -  I thought it would be cold. It was warm, though,
    and sunny. 
-  I thought it would be cold. It was warm and sunny,
    though. 
 NOT: I thought it would be cold. Though
    it was warm and sunny.