There is a″lanjie″(拦截) conceptual field in Chinese which means″force mobile content to stop going;do not let go through .″The conceptual field was covered by such words as″e″ (遏),″yao″(邀),″zhe″(遮),″lie″(迾)and″zu″(阻) in the Pre-Qin Dynasty,and then words like″lan″ (拦),″jie″(截),″d uan″(断) and so on appeared in the Wei,Jin and the Northern and Southern Dynasties .The Song Dynasty turned up″dang″(挡),″ba″(把),″zha″(闸),but in modern Chinese,people basically say″lan″(拦),″d ang″(挡),″jie″(截) .It's found that for these encoding lexical members,three different alternations in the history of Chinese language are crucial and worth noting : 1) Around the Western Han Dynasty,the word″zhe″(遮) came to be used and frequently compared with″e″(遏) and″yao″(邀),which used to be the main words before the Pre-Qin Period and were compelled out of this semantic field no later than the Northern-southern Dynasties,which can be used as the first verb constitute in the medieval emerging statements .But the use of ″e″(遏),″yao″(邀) was only used in a language domain,the lexical field was gradually narrowed . 2)″L an″(拦) began to prevail over″zhe″(遮) during the Tang and the Five Dynasties,and replaced it eventually with″jie″in the Song Dynasty .In strong oral speaking corpus,cases of the use of″lan″(拦),″jie″(截) increased gradually,the lexical field was expanded,with the emerging grammar components in the Song Dynasty,such as the dynamic auxiliary word″zhe″(着);and the resulting complement″z hu″(住) .The leading position of″z he″(遮)in its lexical system was replaced by the meaning″cover an object .″″Z he″(遮) began to be more frequently used with fixed tremolo combinations,but rarely used with emerging grammatical components . 3) By the Yuan and Ming Dynasties,″d ang″(挡) turned to be used in the rising tone .It developed a specific performance and also became a dominant member in this field .The new glyph of″dang″(挡) appeared,which was divided from″d ang″(当),not only the single frequency was more than″jie″(截),but also the syntactic combination with″lan″(拦),″jie″(截) had the similar features .What's more,the patient objects such as″arrow/cold/rain/wind″is exactly what the ″lan″(拦) and″jie″(截) lacked .