-Unit1 Aa Bb的发音及拓展词汇 英语通用版 三年级上 自然拼读 1 ? a a a a a a a a Lets practice. P3 Lets write! Lets watch the video! Whats this? apple ant alligator Listen and stand up. Clap and say. Aa apple ant alligator Find the letter B. Lets practice. P3 Lets write! Lets write. P4 Lets watch the video! Pass and say. Aa Bb Whats this? book banana bag Touch and say. book bag banana Bb Clap your hands when you hear “a” Stamp your feet when you hear “b”. Find friends! A a B b