diff --git a/app/views/layouts/base_homework.html.erb b/app/views/layouts/base_homework.html.erb
index 396457c35..6fb6e71c6 100644
--- a/app/views/layouts/base_homework.html.erb
+++ b/app/views/layouts/base_homework.html.erb
@@ -38,7 +38,7 @@
                       <a><%= link_to request.host()+"/courses", :controller => 'courses', :action => 'index' %></a></td>
                     <td><p class="top-content-list-homework"><%= link_to "主页", home_path %>
                       > <%= link_to l(:label_course_practice), :controller => 'courses', :action => 'index' %> >
-                      <span><%= link_to(@bid.courses.first.name.to_s, homework_course_path(@bid.courses.first)) if @bid.courses.first %></span>
+                      <span><%= link_to(course.name.to_s, homework_course_path(course)) if course %></span>
                       >
                       <%= link_to(@bid.name, respond_path(@bid)) %></p></td>
                   </tr>
@@ -65,7 +65,7 @@
                                 <td style="vertical-align: top;font-size: 16px;text-align: center;">
                                                   <span style=" word-wrap: break-word; word-break: break-all">
                                                     <strong>
-                                                      <%= link_to @bid.courses.first.name.to_s, homework_course_path(@bid.courses.first) if @bid.courses.first %>
+                                                      <%= link_to course.name.to_s, homework_course_path(course) if course %>
                                                     </strong>
                                                   </span>
                                 </td>
@@ -211,9 +211,9 @@
                     <li>
                       <%= link_to l(:label_question_student), {:controller => 'bids', :action => 'show'}, :class => link_class(:respond) %>
                     </li>
-                    <% if  User.current.member_of_course? @bid.courses.first %>
+                    <% if  User.current.member_of_course? course %>
                         <li>
-                          <% if User.current.logged? && @bid.courses.first && (!Member.where('user_id = ? and course_id = ?', User.current.id, @bid.courses.first.id).first.nil? && (Member.where('user_id = ? and course_id = ?', User.current.id, @bid.courses.first.id).first.roles&Role.where('id = ? or id = ? or id =?', 5, 10, 7)).size >0) %>
+                          <% if User.current.logged? && course && (!Member.where('user_id = ? and course_id = ?', User.current.id, course.id).first.nil? && (Member.where('user_id = ? and course_id = ?', User.current.id, course.id).first.roles&Role.where('id = ? or id = ? or id =?', 5, 10, 7)).size >0) %>
                               <%= link_to l(:label_homework_commit), {:controller => 'bids', :action => 'show_course'}, :class => link_class(:course) %>
                           <% else %>
                               <%= link_to l(:label_homework_info), {:controller => 'bids', :action => 'show_course'}, :class => link_class(:course) %>
@@ -221,9 +221,9 @@
                           <% end %>
                         </li>
                     <% end %>
-                    <!-- <li><%= link_to l(:label_homework_statistics), {:controller => 'bids', :action => 'homework_statistics'}, :class => link_class(:homework_statistics) %></li> -->
-                    <!-- <li><%= link_to l(:label_homework_respond), {:controller => 'bids', :action => 'homework_respond'}, :class => link_class(:homework_respond) %></li>
-									--></ul>
+                    <!-- <li><%#= link_to l(:label_homework_statistics), {:controller => 'bids', :action => 'homework_statistics'}, :class => link_class(:homework_statistics) %></li> -->
+                    <!-- <li><%#= link_to l(:label_homework_respond), {:controller => 'bids', :action => 'homework_respond'}, :class => link_class(:homework_respond) %></li>-->
+                  </ul>
                 </div>
 
                 <%= yield %>