Theme / What We Say Something About
Subject
Topic
Theme
What is the statement about?
core
basic
Scene core
意味
The participant or idea that the sentence is mainly about, even if it is not actively doing anything.
見分け方
Ask what the sentence is making a statement about.
例
単語
the book|this problem|my brother|it
フレーズ
as for the book|this problem is difficult
文
This book is expensive.
Visual guide
Basic shape
ABOUT frame:
[This book]
↓ comment about it
[is expensive]
Topic/theme = what
statement is about
Compare shape
Same idea, two shapes: [This book] [is expensive] subject/topic comment [As for the book], [expensive] topic frame + comment
言語別ビュー
母語では
Japanese
表れ方
strong
重要度
Japanese strongly separates topic with は from subject-like marking with が.
この本は高い。
As for this book, expensive.
学習中の言語では
Arabic (Modern Standard)
表れ方
strong
難易度
Arabic often uses nominal topic-comment sentences, especially in the present tense without an overt copula.
هذا الكتاب مفيد.
This book useful.
よくあるつまずき
Learners may expect every sentence to need a verb equivalent to be.
Same block, different coding
Both languages use this block strongly, but they signal it differently. Focus on form changes, not only meaning.