Key points of data introduction review: 1. Know and master Chinese Pinyin, and use it to read and learn Mandarin. ① Master initials and finals. ② According to the syllables of Chinese characters, the initials zh ch sh are Z, C and S3, and the spelling is accurate. 4 By looking up syllables, you can determine the pronunciation of words, and some syllables need to be written in three or four Chinese characters. Such as: xíng (punishment) (form) (type) (line)