1) There is no definitive answer about how students acquire a second language as many factors are involved in the process including emotional, physical, psychological, and sociological factors.
2) It can take ESL students 5-7 years to achieve the same levels of academic English proficiency as native speakers due to the complex skills required to comprehend textbooks and apply critical thinking.
3) Both the emotional and intellectual aspects of the student play important roles in second language acquisition and effective learning addresses both cognitive and affective needs.