diff --git a/app/controllers/courses_controller.rb b/app/controllers/courses_controller.rb
index 333ad77b1..e89f621c8 100644
--- a/app/controllers/courses_controller.rb
+++ b/app/controllers/courses_controller.rb
@@ -6,6 +6,7 @@ class CoursesController < ApplicationController
   helper :members
   helper :words
   helper :attachments
+  helper :activity_notifys
 
   before_filter :auth_login1, :only => [:show, :feedback]
   menu_item :overview
diff --git a/app/helpers/activity_notifys_helper.rb b/app/helpers/activity_notifys_helper.rb
new file mode 100644
index 000000000..15fc43b54
--- /dev/null
+++ b/app/helpers/activity_notifys_helper.rb
@@ -0,0 +1,7 @@
+module ActivityNotifysHelper
+  def get_new_notify_count(container,type)
+    logger.info('xxoo')
+    query = ActivityNotify.where('activity_container_id=? and activity_container_type=? and notify_to=?',container.id,type,User.current.id);
+    return query.count()
+  end
+end
\ No newline at end of file
diff --git a/app/views/courses/show.html.erb b/app/views/courses/show.html.erb
index 9bbe4ea5a..4fbf3ad43 100644
--- a/app/views/courses/show.html.erb
+++ b/app/views/courses/show.html.erb
@@ -1,7 +1,9 @@
 <div class="project_r_h">
 <% if @controller_name=='ActivityNotifys' %>
-  <a class="fl about_me" href="<%=course_path(@course)%>"><%= l(:label_activity)%></a>
-  <h2 class="fl project_h2">与我相关</h2>
+  <a class="fl about_me" style="width:80px;" href="<%=course_path(@course)%>"><%= l(:label_activity)%></a>
+  <h2 class="fl project_h2" style="width:100px;">与我相关
+    <span class="c_orange f12" style="display:none;">(<font id="new_notify_count"><%=get_new_notify_count(@course,'Course')%></font>)</span>
+  </h2>
   <div class="fr mt10 mr5 c_grey02">
     <a class="c_dblue">
       <label class="mr5" style="cursor:pointer;" data-href="<%= course_activity_notifys_path(@course) %>/chang_read_flag" nhname='nh_act_link_all'>全部标为已读</label>
@@ -10,7 +12,9 @@
 <% else %>
   <h2 class="fl project_h2"><%= l(:label_activity)%></h2>
   <% if User.current.logged? %>
-  <a class="fl about_me" href="<%=course_activity_notifys_path(@course)%>">与我相关</a>
+  <a class="fl about_me" href="<%=course_activity_notifys_path(@course)%>">与我相关
+    <span class="c_orange f12" style="display:none;">(<font id="new_notify_count"><%=get_new_notify_count(@course,'Course')%></font>)</span>
+  </a>
   <% end %>
 <% end %>
 </div>
@@ -80,6 +84,14 @@
 
 <script type="text/javascript">
   $(function(){
+      function nh_new_notify_count_show(){
+          var new_notify_count = $("#new_notify_count").html();
+          if(new_notify_count>0){
+              $("#new_notify_count").parent('span').show();
+          }else{
+              $("#new_notify_count").parent('span').hide();
+          }
+      }
       $("div[nhname='container']").each(function(){
           var container = $(this);
           var btn = $("a[nhname='nh_act_link']",container);
@@ -92,6 +104,8 @@
                       $.ajax({url:url,dataType:'text',success:function(data){
                           if(data == 'true'){
                               flag.remove();
+                              $("#new_notify_count").html($("#new_notify_count").html()-1);
+                              nh_new_notify_count_show();
                           }
                       }});
                   }
@@ -104,8 +118,11 @@
           $.ajax({url:url,dataType:'text',success:function(data){
               if(data == 'true'){
                   $("span[nhname='nh_act_flag']").remove();
+                  $("#new_notify_count").html('0');
+                  nh_new_notify_count_show();
               }
           }});
       });
+      nh_new_notify_count_show();
   });
 </script>
\ No newline at end of file
diff --git a/app/views/mailer/send_for_user_activities.html.erb b/app/views/mailer/send_for_user_activities.html.erb
index e1712a15d..3d53acd5a 100644
--- a/app/views/mailer/send_for_user_activities.html.erb
+++ b/app/views/mailer/send_for_user_activities.html.erb
@@ -39,7 +39,7 @@
       <% end %>
 
       <!--课程作业-->
-      <% if  !@bids.first.nil? %>
+      <% unless  @bids.empty? %>
           <ul class="wmail_ul" style="clear: both;margin-left:10px; border-bottom:1px dashed #cfcfcf; padding-bottom:15px; width:720px; margin-bottom:15px;">
             <h4 class="wmail_h4" style="color:#474646; font-size:14px; margin-bottom:5px;"><%= l(:label_homework_overview) %><span class="wmail_num" style="color:#fe3f0c; margin-left:5px; font-weight:normal;">(<%= @bids.count %>)</span></h4>
             <% unless @bids.first.nil?%>
@@ -48,20 +48,20 @@
                       <span class="wmail_dis" style="float:left; color:#000000; margin-right:5px;">▪</span>
                       <span class="wmail_b" style="color:#1b55a7; font-weight:bold; float:left;">[</span>
 
-                      <%= link_to truncate(bid.courses.first.name,length: 30,omission: '...'), course_url(bid.courses.first, :token => @token.value),
+                      <%= link_to truncate(bid.course.name,length: 30,omission: '...'), course_url(bid.course, :token => @token.value),
                                   :class=> "wmail_column",
                                   :style=> " font-weight: bold; display:block; float:left; color:#1b55a7;overflow:hidden; white-space: nowrap; text-overflow:ellipsis;" %>
                       <span class="wmail_b" style="color:#1b55a7; font-weight:bold; float:left;">]</span>
 
-                      <%= link_to bid.author, user_activities_url(bid.author,:token => @token.value), :class => "wmail_name",
+                      <%= link_to bid.user, user_activities_url(bid.user,:token => @token.value), :class => "wmail_name",
                                   :style => "color:#fe5722; float:left;display:block; margin-right:5px; margin-left:5px;  overflow:hidden; white-space: nowrap; text-overflow:ellipsis;"%>
                       <span class="wmail_txt" style="float:left; margin-right:5px;color:#6e6e6e;"><%= l(:label_course_homework) %></span>
 
-                      <%= link_to truncate(bid.name,length: 30,omission: '...'), course_for_bid_url(:id => bid.id,:token => @token.value),
+                      <%= link_to truncate(bid.name,length: 30,omission: '...'), student_work_index_path(:homework => bid.id,:token => @token.value),
                                   :class => 'wmail_info',
                                   :style => "color:#5a5a5a; float:left;   margin-right:5px; display:block;color:#1b55a7;overflow:hidden; white-space: nowrap; text-overflow:ellipsis;"
                       %>
-                      <span class="wmail_date" style="color:#6e6e6e; float:right;display:block; margin-left:10px;"><%= format_time(bid.created_on) %></span>
+                      <span class="wmail_date" style="color:#6e6e6e; float:right;display:block; margin-left:10px;"><%= format_time(bid.created_at) %></span>
                     </li>
                 <% end %>
             <% end %>
diff --git a/app/views/mailer/send_for_user_activities.text.erb b/app/views/mailer/send_for_user_activities.text.erb
index 2a2382301..669aca3d1 100644
--- a/app/views/mailer/send_for_user_activities.text.erb
+++ b/app/views/mailer/send_for_user_activities.text.erb
@@ -27,27 +27,27 @@
         <% end %>
 
   <% end %>
-  <% if  !@bids.first.nil? %>
+  <% unless  @bids.empty? %>
     <%= l(:label_homework_overview) %><%= @bids.count %>
         <% unless @bids.first.nil?%>
             <% @bids.each do |bid| %>
                ▪
                 [
 
-                  <%= link_to truncate(bid.courses.first.name,length: 30,omission: '...'),course_url(bid.courses.first, :token => @token.value)
+                  <%= link_to truncate(bid.course.name,length: 30,omission: '...'),course_url(bid.course, :token => @token.value)
                                
                                 %>
                  ]
 
-                  <%= link_to bid.author, user_activities_url(bid.author,:token => @token.value)  
+                  <%= link_to bid.user, user_activities_url(bid.user,:token => @token.value)
                                %>
                <%= l(:label_course_homework) %>
 
-                  <%= link_to truncate(bid.name,length: 30,omission: '...'), course_for_bid_url(bid,:token => @token.value)
+                  <%= link_to truncate(bid.name, length: 30,omission: '...'), student_work_index_path(:homework => bid.id,:token => @token.value)
                                
                                
                   %>
-                 <%= format_time(bid.created_on) %>
+                 <%= format_time(bid.created_at) %>
 
             <% end %>
         <% end %>
diff --git a/public/stylesheets/courses.css b/public/stylesheets/courses.css
index bbc6f5b55..edb70075b 100644
--- a/public/stylesheets/courses.css
+++ b/public/stylesheets/courses.css
@@ -677,7 +677,7 @@ input#score{ width:40px;}
 
 /* 与我相关 */
 .new_icon{background:url(../images/new_icon.png) 0px 0px no-repeat; width:35px; height:15px; display:block;}
-a.about_me{ width:80px;text-align:center;font-size:16px; color:#64bdd9; margin:10px 0 0 10px;}
+a.about_me{text-align:center;font-size:16px; color:#64bdd9; margin:10px 0 0 10px;}
 a:hover.about_me{ color:#0781b4;}