Two. At the beginning of tenor learning, it is better to take this state, and it is more beneficial to put down your throat and open your throat to practice singing U or lowering the hair in the scale. At this learning stage, don't rush to sing works with a wide range of songs. You can even choose only one catchy and frequently-opened phrase as an exercise in excellent songs, such as the previous sentence of Huang Zi's Flowers Are Not Flowers (the bass is practiced from the central C).
Italian song "My Sun" (Di Capua) Choose the first sentence of the song (the bass starts from the central C). In these phrase transposition exercises, the lowest note starts from C' and then falls down when the highest note sings to "e2". Repeated practice in this way, while experiencing the open state of the larynx and pharynx, can sing the phrase beautifully with emotion. After the throat is stable and the throat is open, it has become a singing habit in the middle and low voice areas, then consider expanding the range and gradually transition to the "voice change point" in the high voice area.