六度、七度音程 ,从和声的角度看 ,属于开放性排列 ;从旋律的角度看 ,音程距离较大 ,被称为大跳。训练方法可采用音阶构唱法、三二度音程构唱法、三四五度音程构唱法、同质音程代替法和音程转位法等五种形式。不同能力的人 ,可根据自己的具体条件和需要 ,选择使用 Six degrees, seven degrees interval, from the perspective of harmony, belong to the open arrangement; From the melody point of view, the pitch range is larger, known as the big jump. The training method can adopt five forms of musical composition singing method, third-degree pitch singing method, three-four five-degree pitch singing method, homophonic tone substitution method and pitch transposition method. Different abilities, according to their own specific conditions and needs, choose to use