【正文】
Chapter Four Analysis of reasons for gender differences of the influence on junior high school students 39。 English learning Physiological factors Physiological factors is one of the causes of gender differences in English learning, gender differences in the physiological structure. Chromosome The genetic difference of sex chromosomes determine the male and female gender .Normal humans have 23 pairs of chromosomes, of which 22 are autosomal, men and women are the same, there was also a pair of sex chromosomes (sex chromosome), which is closely linked to gender, men and women are different. Males have one X chromosome and one Y chromosome and females have two X chromosomes . Therefore, we can infer that, the different chromosomes, caused the differences in language ability of the boys and girls, girls are better than boys in terms of language skills. This is one reason why girls score better than boys in English, and also contributed to the boys in English of poor students account for the majority. The difference in maturity Both sexes have existed in the time of physical development, women in infancy and adolescence than men are early maturity.In infancy, girls than boys began to talk of time a month earlier, learn words also rapidly. In the preschool period, its vocabulary than boys. According to the study, men and women of different level of children of language response, in eighteen months time, the boy is 14% on average, a girl of 38%, twentyfour months, 49% for boys, a girl of 78%.In addition, the girl began to flexible use of sentences with longer time and more plex sentences and the time is earlier than boys. In terms of pronunciation, girls have reached clear pronunciation of age earlier, standard of pronunciation in elementary school first grade girls like boys in the second grade. At present,