Note: The Shabbos Torah Reading is divided into 7 sections. Each section is called an Aliya [literally: Go up] since for each Aliya, one person “goes up” to make a bracha [blessing] on the Torah Reading.
1st Aliya: The year is 2448 and Moshe had unsuccessfully confronted Pharaoh. The situation had gotten worse, not better, and Hashem (G-d) reassured Moshe that in fact the redemption was about to begin. The 4 statements of redemption are stated for which we have the 4 cups of wine at the Passover Seder.
2nd & 3rd Aliyot: Moshe’s Yichus (lineage) is established. He is 80 years old and Aharon is 83.
4th Aliya: Moshe performed the miracle of the “staff turning to a serpent” and performed the first and second plagues.
5th Aliya: Moshe performed the third plague and forewarned Pharaoh about the fourth.
6th Aliya: The fourth, fifth, and sixth plagues were performed, and Moshe forewarned Pharaoh regarding the seventh.
7th Aliya: The seventh plague was performed and Pharaoh “hardens his heart” and refused to let the Jews go.