diff --git a/app/controllers/homework_common_controller.rb b/app/controllers/homework_common_controller.rb
index 398b385a4..a891d3354 100644
--- a/app/controllers/homework_common_controller.rb
+++ b/app/controllers/homework_common_controller.rb
@@ -344,7 +344,7 @@ class HomeworkCommonController < ApplicationController
 
   #当前用户是不是课程的成员
   def member_of_course
-    render_403 unless @course.is_public || User.current.member_of_course?(@course) || User.current.admin?
+    render_403 unless @course.is_public==1 || User.current.member_of_course?(@course) || User.current.admin?
   end
 
   def get_assigned_homeworks(student_works, n, index)
diff --git a/app/models/member.rb b/app/models/member.rb
index ed7ee81e6..413fedc07 100644
--- a/app/models/member.rb
+++ b/app/models/member.rb
@@ -150,7 +150,7 @@ class Member < ActiveRecord::Base
 
   #当前学生在指定作业内的得分
   def homework_common_score homework_common
-    StudentWork.select("final_score").where(:homework_common_id => homework_common.id,:user_id => self.user_id)
+    StudentWork.select("IF(final_score is null,null,final_score - absence_penalty - late_penalty) as final_score").where(:homework_common_id => homework_common.id,:user_id => self.user_id)
   end
 
   def student_work_score_avg
@@ -158,7 +158,12 @@ class Member < ActiveRecord::Base
   end
 
   def student_work_score_sum
-    StudentWork.joins(:homework_common).where("student_works.user_id = #{self.user_id} and homework_commons.course_id = #{self.course_id}").sum(:final_score).try(:round, 2).to_f
+    sql_select = "SELECT (SUM(IF(student_works.final_score is null,null,student_works.final_score - student_works.absence_penalty - student_works.late_penalty))) as score
+          FROM student_works,homework_commons
+          WHERE student_works.homework_common_id = homework_commons.id
+          AND homework_commons.course_id = #{self.course_id}
+          AND student_works.user_id = #{self.user_id}"
+    score = StudentWork.find_by_sql(sql_select)
   end
 
   protected
diff --git a/app/views/courses/_show_member_score.html.erb b/app/views/courses/_show_member_score.html.erb
index 2d08e853e..612f408d7 100644
--- a/app/views/courses/_show_member_score.html.erb
+++ b/app/views/courses/_show_member_score.html.erb
@@ -28,7 +28,7 @@
               </span>
             </li>
        <% end %>
-      <li><span class="c_blue03 w280">作业积分（总分）</span><span class="c_red w70"><%= @member_score.student_work_score_sum %></span></li>
+      <li><span class="c_blue03 w280">作业积分（总分）</span><span class="c_red w70"><%= (@member_score.student_work_score_sum).first.score %></span></li>
     </ul>
 
   </div>
diff --git a/app/views/homework_common/_homework_search_form.html.erb b/app/views/homework_common/_homework_search_form.html.erb
index aa3eef59e..f71cec9a5 100644
--- a/app/views/homework_common/_homework_search_form.html.erb
+++ b/app/views/homework_common/_homework_search_form.html.erb
@@ -1,6 +1,6 @@
 <%= form_tag( url_for(:controller => 'courses',:action => 'homework_search',:id=>course.id),
               :remote=>true ,:method => 'get',:class=>'resourcesSearchloadBox',:id=>'resource_search_form') do %>
-    <input type="text" name="search" placeholder="输入作业关键词进行搜索" class="searchResource" />
+    <input type="text" name="search" placeholder="输入作业名称进行搜索" class="searchResource" />
     <%= submit_tag '',:class=>'homepageSearchIcon',:onfocus=>'this.blur();',:style=>'border-style:none' %>
     <!--<a href="javascript:void(0);" onclick='this.parent.submit();return false;' class="searchIcon"></a>-->
 <% end %>
\ No newline at end of file