Here are our picks for the singular scenes that Oscar should use to represent each Best Picture nominee at this year’s Academy Awards. Photo: Fox Searchlight In the absence of an Oscars host , one of the best ways to keep pace during the Academy Awards ceremony is by following the presentations of Best Picture nominees . As the night heads toward the big prize, each of these nominees will get introduced to the audience by either a star tangentially associated with it (see: Diego Luna presenting his former director Alfonso Cuarón’s film Roma last year) or, even better, by a star bizarrely not associated with it at all (Goldie Hawn’s sweet but curious enthusiasm for 12 Years a Slave ). The fanfare lends a sense of importance to the films nominated for the top prize, and it underscores what the Oscars are meant to provide: a chance to love up on all these movies. The tradition hasn’t been without some hiccups. The change in the Best Picture category — from celebrating five films to celebrating anywhere from five to ten (usually eight or nine) — posed a challenge to producers of the broadcast. A four-year period saw two or…