diff --git a/Gemfile b/Gemfile
index 3e159036..7acfb39f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -64,11 +64,11 @@ gem 'elasticsearch-rails'
 gem 'oauth2'
 
 # xlsx
-gem 'axlsx', '3.0.0.pre'
-gem 'axlsx_rails', '0.3.0'
+# gem 'axlsx', '3.0.0.pre'
+# gem 'axlsx_rails', '0.3.0'
 
 # state machine
-gem 'aasm'
+# gem 'aasm'
 
 #Ruby 2.2+ has removed test/unit from the core library.
 if RUBY_VERSION>='2.2'
diff --git a/app/views/competitions/_qg_second_course_competition.html.erb b/app/views/competitions/_qg_second_course_competition.html.erb
new file mode 100644
index 00000000..92d2a9f9
--- /dev/null
+++ b/app/views/competitions/_qg_second_course_competition.html.erb
@@ -0,0 +1,14 @@
+<p class="second_course_1" style="background: url('/images/educoder/competition/qg/qg_teach_1.png') no-repeat top center;"></p>
+<p class="second_course_2" style="background: url('/images/educoder/competition/qg/qg_teach_2.png') no-repeat top center;"></p>
+<p class="second_course_3" style="background: url('/images/educoder/competition/qg/qg_teach_3.png') no-repeat top center;"></p>
+<p class="second_course_4" style="background: url('/images/educoder/competition/qg/qg_teach_4.png') no-repeat top center;"></p>
+<div class="second_course_5" style="background: url('/images/educoder/competition/qg/qg_teach_5.png') no-repeat top center;">
+  <div class="enter_panel" style="height: 500px">
+    <div class="course_competition_panel">
+      <a href="javascript:void(0)" class="active">未知</a>
+      <a href="javascript:void(0)">未知</a>
+    </div>
+    <a href="javascript:void(0)" class="ex_submit">案例提交</a>
+  </div>
+</div>
+<p class="second_course_6" style="background: url('/images/educoder/competition/qg/qg_teach_6.png') no-repeat top center;"></p>
diff --git a/public/images/educoder/competition/qg/qg_teach_1.png b/public/images/educoder/competition/qg/qg_teach_1.png
new file mode 100644
index 00000000..37c55e67
Binary files /dev/null and b/public/images/educoder/competition/qg/qg_teach_1.png differ
diff --git a/public/images/educoder/competition/qg/qg_teach_2.png b/public/images/educoder/competition/qg/qg_teach_2.png
new file mode 100644
index 00000000..b23863e1
Binary files /dev/null and b/public/images/educoder/competition/qg/qg_teach_2.png differ
diff --git a/public/images/educoder/competition/qg/qg_teach_3.png b/public/images/educoder/competition/qg/qg_teach_3.png
new file mode 100644
index 00000000..94458a85
Binary files /dev/null and b/public/images/educoder/competition/qg/qg_teach_3.png differ
diff --git a/public/images/educoder/competition/qg/qg_teach_4.png b/public/images/educoder/competition/qg/qg_teach_4.png
new file mode 100644
index 00000000..d4efd6a0
Binary files /dev/null and b/public/images/educoder/competition/qg/qg_teach_4.png differ
diff --git a/public/images/educoder/competition/qg/qg_teach_5.png b/public/images/educoder/competition/qg/qg_teach_5.png
new file mode 100644
index 00000000..0a7c2600
Binary files /dev/null and b/public/images/educoder/competition/qg/qg_teach_5.png differ
diff --git a/public/images/educoder/competition/qg/qg_teach_6.png b/public/images/educoder/competition/qg/qg_teach_6.png
new file mode 100644
index 00000000..49e689b9
Binary files /dev/null and b/public/images/educoder/competition/qg/qg_teach_6.png differ
diff --git a/public/stylesheets/educoder/edu-all.css b/public/stylesheets/educoder/edu-all.css
index 0721252f..18160d0b 100644
--- a/public/stylesheets/educoder/edu-all.css
+++ b/public/stylesheets/educoder/edu-all.css
@@ -649,7 +649,7 @@ a.enterLink{cursor: pointer;color: #418CCD!important;background: none!important;
 .second_7{min-height: 1096px;}
 .second_8{min-height: 727px;}
 
-
+/*代码标注*/
 .second_code_1{min-height: 791px;}
 .second_code_2{min-height: 436px;}
 .second_code_3{min-height: 1460px;padding-top: 190px;box-sizing: border-box;position: relative}
@@ -677,6 +677,7 @@ a.enterLink{cursor: pointer;color: #418CCD!important;background: none!important;
 .enter_btn a.active{
     background: #DAECFC;color: #2BC4C6!important;
 }
+
 .setNewBnt{width: 100%!important;margin:0px!important;}
 .enter_btn a.active:hover{background: #2CDAD4;color: #fff!important;}
 .challenge_describe{
@@ -704,6 +705,29 @@ li.challenge_box:last-child{
 
 
 
+/*实践教学*/
+.second_course_1{min-height: 782px;}
+.second_course_2{min-height: 823px;}
+.second_course_3{min-height: 690px;}
+.second_course_4{min-height: 523px;}
+.second_course_5{min-height: 737px;padding-top: 190px;box-sizing: border-box;position: relative}
+.second_course_6{min-height: 1230px;}
+.course_competition_panel{
+    margin:30px 40px 40px;border:1px solid #ABDCF1;background: #F1F8FD;justify-content: center;align-items: center;display: -webkit-flex;
+    height: 282px;text-align: center;
+}
+.course_competition_panel a{
+    width: 320px;height: 60px;line-height: 60px;float: left;margin:0px 100px;background: #ccc;color: #fff!important;
+    text-align: center;font-size: 22px;
+}
+.course_competition_panel a.active{
+    background: #47B6FC;
+}
+.ex_submit{
+    width: 360px;height: 70px;background: #2CDAD4;color: #fff!important;font-size: 30px;line-height: 70px;text-align: center;
+    margin:0px auto;display: block;
+}
+