学中文只需这七步—Learn Chinese in ONLY 7 Steps：
✸STEP 1：拼音 , pīn yīn , Pinyin
✸STEP 2：笔画 , bǐ huà , Strokes
✸STEP 3：偏旁部首 , piān páng bù shǒu , Radicals
✸STEP 4：词汇 , cí huì , Vocabulary
✸STEP 5：句型 , jù xíng , Sentence Types
✸STEP 6：标点符号 , biāo diǎn fú hào , Punctuations
✸STEP 7：文章 , wén zhāng , Articles；故事 , gù shì , Stories；对话 , duì huà , Conversations
汉语中的变调规则 Tone Sandhi Rules in Chinese
(Learn Mandarin Tone Changes)
1. 汉字“一”的变调 1. The tone sandhi of the Chinese character “一”
规则#1：当单念或在词组末尾时，“一”字念原调(第1声)。 Rule #1: When pronounced alone or at the end of a phrase, “一” is pronounced in the original tone (first tone).
例词：一；第一；专一。 yī, èr, sān; dì yī; zhuān yī. Examples: one; first; concentrated.
规则#2：在第4声的汉字前，“一”字变为第2声。 Rule #2: Before the Chinese character in the 4th tone, the character “一” becomes the 2nd tone.
例词：一定；一次。 yí dìng; yí cì. Examples: certainly; once.