Created 学生版逻辑树 update20150713 (markdown)

+1.画过逻辑树的课程，按照逻辑树中的符号进行断句和分段落，比如中级听读、高级听读和故事乐园。
+	识别到 * 表示是句子主干，文字用黑色；其他符号，表示是句子修饰成分，文字用灰色。
+	识别到 // 表示是一段结束。
+
+2.没有画过逻辑树的课程，按照换行符分段落。
+
+
+
+附逻辑树符号解析：
+
+*So "Nyan Cat" is a looped _animation_ 
+>with looped music. 
+//
+*It's this, just like this. 
+//
+*It's been viewed 
+>nearly 50 million times this year. 
+//
+^And if you think that is weird, 
+*you should know 
+>that there is _a three-hour version_ of this 
+>>that's been viewed four million times. 
+//
+*Even cats were watching this video.  
+*Cats were watching other cats watch this video.
+
+* 每句话主句，黄色
+_  _ 下划线
+> 箭头下一行 修饰
+>> 箭头下一行后再箭头下一行 修饰中的修饰
+>>> 宾语从句、定语从句。。。
+>>>>
+^ 复合句从句，白色
+// 分页