In combination with classroom observation and students' usual homework and test scores, in English class, students who are focused, actively participate in classroom activities, and actively interact with teachers have good homework feedback, high accuracy of homework, and higher test scores than students who are distracted and love to leave. Facts show that the students who concentrate in class can quickly absorb the knowledge points that the teacher tells in class, take notes carefully in class, and review in time after class. Therefore, attention has a great impact on students' performance. In comparison with the performance of class one and class two in grade three, there are more students who have a small gap in English class in class one in grade three, some of them like to talk or read extra-curricular books in class, the students in class two in grade three are more active in class, can actively participate in class activities, and make quick and correct answers to teachers' questions in class, and the homework in class two in grade three The accuracy rate is much higher than that of class one in grade three, and the examination result is also higher than that of class one in grade three. In the classroom, it was observed that some students were distracted, which led to the decline of their scores. After that, the teacher gave ideological education to the student, reminding him that he could not make a small difference in class. He should focus on his attention and take notes carefully. In the second exam, the student made significant progress.