“What are the properties of this tree? ”

“Oh, its fruit is pleasant to look at, and delicious to the taste; (1) from it is produced a liquid which fills the heart with joy.”

“Well, since wine (2) makes glad the heart of man, I will help thee plant this tree.”

(3)So saying, the demon brought a lamb and slew it, then a lion, then an ape, and, last of all, a pig, killing each in succession, and moistened the roots of the vine with the blood.

请教老师，

1.     its fruit is pleasant to look at, and delicious to the taste;前半句 to look at 是不定式;后半句是to +名词(the taste), 为何没有遵守对称原则用不定式 to taste?

2.      文中三处(1),(2),(3)为何都用倒装？请老师分别解释。

感谢各位老师。