diff --git a/app/helpers/courses_helper.rb b/app/helpers/courses_helper.rb
index 178782da3..04b5ad89d 100644
--- a/app/helpers/courses_helper.rb
+++ b/app/helpers/courses_helper.rb
@@ -486,6 +486,20 @@ module CoursesHelper
     term
   end
 
+  def course_in_current_or_next_term course
+    is_current_term = false
+    is_next_term = false
+    if course.time == Time.now.year && course.term == cur_course_term
+      is_current_term = true
+    end
+    if cur_course_term == "秋季学期" && course.time == (Time.now.year + 1) && course.term == "春季学期"
+      is_next_term = true
+    elsif cur_course_term == "春季学期" && course.time == Time.now.year && course.term == "秋季学期"
+      is_next_term = true
+    end
+    is_current_term || is_next_term
+  end
+
   #获取课程动态
   def get_course_activity courses, activities
     @course_ids=activities.keys()
diff --git a/app/helpers/files_helper.rb b/app/helpers/files_helper.rb
index f3be6e904..d51606d90 100644
--- a/app/helpers/files_helper.rb
+++ b/app/helpers/files_helper.rb
@@ -47,7 +47,7 @@ module FilesHelper
   def courses_check_box_tags(name,courses,current_course,attachment)
     s = ''
     courses.each do |course|
-      if !(attachment.container_type && attachment.container_id == course.id)  && is_course_teacher(User.current,course)
+      if !(attachment.container_type && attachment.container_id == course.id)  && is_course_teacher(User.current,course) && course_in_current_or_next_term(course)
         s << "<label>#{ check_box_tag name, course.id, false, :id => nil } #{h course.name}</label>&nbsp;[#{get_course_term course}]<br/>"
       end
     end