Here is one possible solution:
var block = $("#termsy_master").clone();
block.children("h2").text("new title");
block.children(".sm").attr("id", "sm_new_id");
block.children(".di").attr("id", "di_new_id");
block.attr("id", "his").show().appendTo(".article-content");
DEMO: http://jsfiddle.net/8pxPC/
, :)
$("#termsy_master").clone().attr("id", "his").show().appendTo(".article-content").children("h2").text("new title").siblings(".sm").attr("id", "sm_new_id").siblings(".di").attr("id", "di_new_id");