diff --git a/app/views/shixuns/_form.html.erb b/app/views/shixuns/_form.html.erb
index ce082abb5..288751d03 100644
--- a/app/views/shixuns/_form.html.erb
+++ b/app/views/shixuns/_form.html.erb
@@ -28,15 +28,15 @@
               <p id="e_tip_in" style="margin-left: 10%" class="c_grey"></p>
               <p id="e_tips_in" style="margin-left: 10%" class="c_grey"></p>
             </li>
-<!--            <li class="clearfix mb15">
-              <label class="panel-form-label fl">预备知识&nbsp;&nbsp;&nbsp;</label>
+            <li class="clearfix mb15">
+              <label class="panel-form-label fl">背景知识&nbsp;&nbsp;&nbsp;</label>
               <div id="shixun_propaedeutics" class="new_li fl" style="margin-left: 0px;">
-                <textarea name="shixun[propaedeutics]"><%#= @shixun.propaedeutics %></textarea>
+                <textarea name="shixun[propaedeutics]"><%= @shixun.propaedeutics %></textarea>
               </div>
               <p id="e_tip_pr" style="margin-left: 10%" class="c_grey"></p>
               <p id="e_tips_pr" style="margin-left: 10%" class="c_grey"></p>
               <div class="cl"></div>
-            </li>-->
+            </li>
             <li class="clearfix mb15">
               <label class="panel-form-label fl"><span class="color-orange mr5">*</span>适用专业&nbsp;&nbsp;&nbsp;</label>
               <%= select_tag :major_id, options_for_select(shixun_major_option, 0), :id => 'shixun_major', :class => "fl task-form-30 task-height-40"%>
@@ -187,8 +187,8 @@
       imageUploadURL : "<%= upload_with_markdown_path(:container_id => @shixun.id, :container_type => @shixun.class) %>" //url
   });
 
-  /* --------------------------------- 预备知识 -------------------------------------- */
- /* var shixun_propaedeutics = editormd("shixun_propaedeutics", {
+  /* --------------------------------- 背景知识 -------------------------------------- */
+  var shixun_propaedeutics = editormd("shixun_propaedeutics", {
       width   : "89.7%",
       height  : 300,
       syncScrolling : "single",
@@ -213,7 +213,7 @@
       imageUpload : true,
       imageFormats : ["jpg", "jpeg", "gif", "png", "bmp", "webp", "JPG", "JPEG", "GIF", "PNG", "BMP", "WEBP"],
       imageUploadURL : "<%#= upload_with_markdown_path(:container_id => @shixun.id, :container_type => @shixun.class) %>" //url
-  });*/
+  });
     //////////////////////////////////////////////////////////////
     //提交新建项目
     function submit_new_project()