How to judge the moon's profit and loss?

The moon keeps going around the earth. What about the moon? Earth? The relative position of the sun is constantly changing?

On the first day of each lunar month, the moon is between the sun and the earth? At this time, the side of the moon facing people is not illuminated by the sun; And people can't see the side exposed to the sun? So, people can't see the moon. Is it a new moon or a new moon?

After two or three days, the moon changed its position, and the sun gradually lit up the edge of the hemisphere facing the earth, and people began to see a small part of the moon illuminated? It's like a curved moth eyebrow. People call it "the moth eyebrow moon"?

After that, the moon shines more and more sunlight on this hemisphere of the earth day by day, so the curved crescent moon is round day by day until the seventh day of the seventh lunar month? Around the eighth day, the moon is facing the human hemisphere, and half of it can shine sunlight? People can see half the moon, which is the first quarter moon.

The moon is getting rounder and rounder until the fifteenth day of the lunar calendar? The earth is between the moon and the sun. At this time, the side of the moon facing the earth is completely illuminated by sunlight, and people can see a round moon. This is the full moon, also called the full moon? After the full moon, the moon becomes thinner day by day?

On the 22nd lunar month, you can only see half the moon, that is, the second quarter moon; In another four or five days, I can only see the moth eyebrow moon; Until the last day or two of the twelfth lunar month, the moon disappeared again? In three or four days, the moon will appear again and a new cycle will begin?

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