They dance every style. They are dancing every style.

[Nonverbis]

This is from a textbook on grammar called "A Grammar of Present-day English" by I.P. Krylova.

Task: Make up situations to justify the use of the present indefinite and the present continuous in the following pairs of sentences:

They dance every style.
They are dancing every style.


My variant is:
1. They dance every style means that, for example, a child goes in for dancing but is not taught a certain style. They dance folk dancing, ball-room dancing, modern dancing etc.
2. They are dancing every style means that right now an observer can see a lot of styles that dancers are performing. But how can it be is a mystery to me: the music is the same. Maybe it is a disco club where one can see a hotchpotch of styles bing danced no matter what music is on.

Could you help me with this task and speculate on this topic?

 

[emsr2d2]

Neither example sentence is natural so there is little point trying to justify them. I'm assuming the writer of that book is not a native English speaker (given the author's name). I recommend you use something like English Grammar in Use by Raymond Murphy or Practical English Usage by Michael Swan.

 

[Nonverbis]

Thank you for your answer. Textbooks written by non-natives are also beneficial: just because they are specially build for students with this particular background (underline similarities, explain difficulties, translate from your native language).

And secondly: you may be wrong about whether they are natural or not.

Let's have a look at "The Young Lions" by Irwin Shaw: https://booksonline.com.ua/view.php?book=22886

 

[5jj]

Neither example is natural, as emsr2d2 said. The fact that you found an example of one form in a novel does not change that.

 

[Rover_KE]

This is from a textbook on grammar called "A Grammar of Present-day English" by I.P. Krylova.

Having read the examples you have posted from this book, I'm not a fan of this author—not least because they don't seem to be aware that in present-day English the names of tenses are not capitalised.