1 . 此题要求改正所给短文中的错误。对标有题号的每一行作出判断：如无错误，该行右边横线上画一个勾（√）；如有错误（每行只有一个错误，则按下列情况改正：
此行多一词：把多余的词用斜线（/）划掉；在该行右边的横线上写上该词，并也用斜线划掉。
此行缺一词：在缺词处加一个漏字符（∧），在该行右边的横线上写上该加的词。
此行错一词：在错的词下划一横线，在该行右边横线上写出改正后的词。
注意：原行没有错的不要改。
The study of color is fascinating mixture of scientific fact           1    
and emotional guesswork. It is interested to look back in           2    
history, and to try to guess what colors mean to                          3    
the first humans. Blue and green are common or                          4    
familiar colors. We have “safe” meanings for us.                  5    
Blue makes us think the sky and the sea. Green is the           6    
color of growing plants. But red is rare in the nature.                        7    
It is the color of blood and meat, of hunting or of                                  8    
injury. It is also the color of fire. The darkest                                       9    
nights are black---a color often associated in fear.                            10