辛达雅思代报考位，雅思代报名截止前提醒广大考生抓紧时间报名，欢迎前来咨询在线客服。

      431.the further development of rich countries is dependent upon

　　432.rebellious

　　433.be under an obligation to give sb a helping hand in improving sth

　　434.The situation is completely unacceptable.

　　435.make allowance for 体谅

　　436.is a necessary supplement to the knowledge they gain from school course

　　437.reinforce children’s sense of responsibility

　　438.help them understand the famous saying” no pain no pain” better

　　439.corporal punishment

　　440.numerous studies have been done on

      441.The mission of educating the young to be useful to society and to avoid wrongdoing can be fulfilled in many ways.

　　442.should learn more about the inner world of youngsters, try to understand them, and guide them to acquire a sense of self-worth.

　　443.Whether sth is the best measure for handing any problem caused by children is up to the parents to decide—not the schools.

　　444.malnutrition

　　445.disturb the natural balance

　　446.a powerful corrective

　　447.Don’t forget to flush. 便后要冲水

　　448.dyed yellow hair

　　449.It is not absolute that an intelligent couple will have a clever child.

　　450.a more environmentally friendly place to live

　　451.the dangerous gas given off by exhausts of cars , bus and lorries

　　452.plain looking face 普通的长相