Culture shock is caused by the anxiety that results from losing all our familiar signs （标识）and symbols （符号）of social intercourse. Those signs （符号）or cues （提示）include the thousand and one ways with which we are familiar in the situation of daily life. 

【答】这几个词意思相近，区别的意义不大。只需知道：为了避免使用重复的词语，翻译时可以用汉语的近义语，予以区别即可。