diff --git a/SICP/index.tm b/SICP/index.tm
index 81893ac..7aabe8b 100644
--- a/SICP/index.tm
+++ b/SICP/index.tm
@@ -9,10 +9,9 @@
     <item>SICP\<#5B98\>\<#7F51\>\<#FF1A\><hlink|Structure and Interpretation
     of Computer Programs|https://mitp-content-server.mit.edu/books/content/sectbyfn/books_pres_0/6515/sicp.zip/index.html>
 
-    <item>\<#7B2C\>0\<#8BFE\>\<#FF1A\><hlink|\<#5E7B\>\<#706F\>\<#7247\>|slide00.tm>
+    <item>\<#7B2C\>1\<#8BFE\>\<#FF1A\><hlink|\<#4EA4\>\<#4E92\>\<#5F0F\>\<#8BFE\>\<#4EF6\>|https://gitee.com/XmacsLabs/interactive-sicp/raw/main/course01.tm>\<#3001\><hlink|\<#5E7B\>\<#706F\>\<#7247\>|slide01.tm>
 
-    <item>\<#7B2C\>1\<#8BFE\>\<#FF1A\><hlink|\<#4EA4\>\<#4E92\>\<#5F0F\>\<#8BFE\>\<#4EF6\>|https://gitee.com/XmacsLabs/interactive-sicp/raw/main/course01.tm>
-    <hlink|\<#5E7B\>\<#706F\>\<#7247\>|slide01.tm>
+    <item>\<#7B2C\>0\<#8BFE\>\<#FF1A\><hlink|\<#5E7B\>\<#706F\>\<#7247\>|slide00.tm>
   </itemize>
 </body>
 
diff --git a/SICP/slide00.tm b/SICP/slide00.tm
index b13c6dc..58b4022 100644
--- a/SICP/slide00.tm
+++ b/SICP/slide00.tm
@@ -12,6 +12,15 @@
       <item>\<#58A8\>\<#5E72\>\<#7406\>\<#5DE5\>\<#5957\>\<#4EF6\>
 
       <item>\<#8BFE\>\<#540E\>\<#4F5C\>\<#4E1A\>
+
+      <\itemize>
+        <item>\<#5B89\>\<#88C5\>\<#58A8\>\<#5E72\>
+
+        <item>\<#63D2\>\<#5165\>Scheme\<#4F1A\>\<#8BDD\>\<#5E76\>\<#8BA1\>\<#7B97\><scm|(+
+        1 1)>
+
+        <item>\<#627E\>\<#5230\> \<#5E2E\>\<#52A9\>\<rightarrow\>\<#58A8\>\<#5BA2\>\<#661F\>\<#7403\>\<rightarrow\>\<#516C\>\<#5F00\>\<#8BFE\>\<rightarrow\>\<#96F6\>\<#57FA\>\<#7840\>SICP
+      </itemize>
     </itemize>
   </shown>>
 </body>
diff --git a/SICP/slide01.tm b/SICP/slide01.tm
index c85c6d2..a164f9f 100644
--- a/SICP/slide01.tm
+++ b/SICP/slide01.tm
@@ -6,7 +6,7 @@
   <screens|<\shown>
     <tit|\<#96F6\>\<#57FA\>\<#7840\>SICP\<#FF1A\>\<#7B2C\>1\<#8BFE\>>
 
-    \;
+    \<#5907\>\<#8BFE\>\<#4E2D\>
   </shown>>
 </body>
 
diff --git a/index.tm b/index.tm
index 54c86fb..aab4936 100644
--- a/index.tm
+++ b/index.tm
@@ -11,6 +11,12 @@
     Chinese characters).
   </warning*>
 
+  <section*|\<#516C\>\<#5F00\>\<#8BFE\>>
+
+  <\itemize>
+    <item><hlink|\<#96F6\>\<#57FA\>\<#7840\>SICP|SICP/index.tm>
+  </itemize>
+
   <section*|\<#516C\>\<#5171\>\<#6587\>\<#6863\>>
 
   <\itemize>
@@ -32,12 +38,6 @@
     <item><hlink|\<#56FD\>\<#9645\>\<#6570\>\<#5B66\>\<#5965\>\<#6797\>\<#5339\>\<#514B\>\<#7ADE\>\<#8D5B\>|http://git.tmml.wiki/XmacsLabs/planet/raw/main/IMO/index.tm>
   </itemize>
 
-  <section*|\<#516C\>\<#5F00\>\<#8BFE\>>
-
-  <\itemize>
-    <item><hlink|\<#96F6\>\<#57FA\>\<#7840\>SICP|SICP/index.tm>
-  </itemize>
-
   <section*|\<#5927\>\<#5B66\>\<#8BFE\>\<#4EF6\>>
 
   <\itemize>