Starter + Unit 1-4 Phonics: -a-/-a_e, -e-/-e_e, -i-/-i_e, -o-/-o_e, -u-/-u_e / Phonics 嵌入各 Unit: a/a_e, e/e_e, i/i_e, o/o_e, u/u_e / Phonics 1-5: a/a_e, e/ee, i/i_e, o/o_e, u/u_e