Halliday只是在小句的层面上讨论主位和述位的切分，进入语篇层次后，这种研究是有局限性的，因此，国内外学者又进一步发展了这一理论。真正将主位理论运用到篇章分析中的是语言学家Danes。他[1]认为，主位传递已知信息，述位传递新信息，因此，从信息价值的角度看，述位的作用更大；但主位在篇章中起到了起承转合的功用，在语篇构建中主位的作用大于述位。Danes指出，单独一个句子有一个确定的主位和述位，因为没有语境，主位和述位都是孤立的，而且没有发展；但语篇是由有意义的连贯句子构成的，小句的主位、述位之间会发生某种联系和变化，并推动语篇的有序发展，这种联系和变化被称为主位推进（thematic progression）。Danes提出了三种对语篇分析产生重要影响的模式，即simple linear、TP with a continuous theme和TP with derived themes。我国学者徐盛恒[2]也提出了区别于Danes的两种主位推进模式：TP with same rheme和crossed pattern。我国另一位语言学者黄衍[3]对前人的研究做了总结，提出了七种主位推进模式。本研究综合了Danes、徐盛恒和黄衍提出的推进模式，一共七种。
以下是七种主要的主位推进模式：
（1）平行型/主位延续模式（parallel or the same theme pattern）：每句主位和上句的主位相同或相关，述位不同。
T1 ＝ T2 ＝T3 ...＝ Tn
例如：The brain contains 10 billion nerve cells, making thousands of billions of connections with each other. It is the most powerful data processor we know.
（2）简单线性/延续型/直线延续模式（simple linear thematic progression）：（前句的述位或述位的一部分是后句的主位，这个主位又引进一个新的述位，该述位又充当下一句的主位）。
R1＝T2 ；R2＝T3；... Rn－1＝Tn
例如：Outside my window is a big lawn. In the middle of the lawn is a flower bed. This bed is full of daffodils.
（3）派生型（derived thematic progression）：前句主位/述位派生或分裂成下几句的主位。
T2＝part of T1；T3＝part of T1；... Tn＝part of T1
T2＝part of R1；T3＝part of R1；... Tn＝part of R1
例如：
All my families are teachers. My father is a junior middle school teacher; my mother is senior middle school teacher. I work in a college.
Those, who would get a clear idea of the battle of Waterloo, have only to lie down upon the ground in their mind a capital A. The left stroke of the A is the road from Nivelles; the right stroke is the road from Genappe; the cross of the A is the road from Chain to Braine I’Alleud; the top of the A is Mont. St. Jean; Wellington is there.
(Adopted from Advanced English Writing)
（4）交叉型（alternative）/ 交叉延续模式：前句的主位是后句的述位。
R2＝T1；R3＝T2；... Rn＝（Tn－1）
例如：The play was interesting, but I didn’t enjoy it. A young man and a young woman troubled me. I turned around and looked at them, but they didn’t pay any attention to me.
（5）并列型（coordinate）：在奇数句中主位相同，偶数句中另一主位相同。
T2＝T1；T3＝T4 ...
例如：Americans eat with knives and forks; Japanese eat with chopsticks. Americans say “Hi”when they meet; Japanese bow. Many American men open doors for women; Japanese men do not.
（6）集中型/述位延续模式（concentrated/the same rheme）：前一句的述位是后句的述位。
R1＝R2 ... ＝Rn
例如：England is a country; France is a country; Turkey is a country; Egypt, Italy, Poland are other countries.
（7）无模式型（no patterning）。
黄衍提出的这一模式中，前句的主位、述位和后句的没有关系。
T1≠T2 ... ≠Tn
例如：I saw the film while watching a television documentary several years ago. The report didn’t concern itself with the concentration camps, but was a filmed history of fighting in the Warsaw ghetto.
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