Question

How make “I really like cats and dogs” into a metaphor and simile

Answer 1

"Raining cats and dogs" literally means that small animals are falling out of the sky. But, of course, this image of animals falling from the sky is a metaphor for very large, heavy drops of water (and possibly dark skies, since animals are opaque).

In a normal metaphor there should be no  word (like).

if you made this example try to change it, but if it is the teacher's question......

Hope this helps!