Grammar Rule in 30 Seconds
Start with what your listener knows (Theme) and end with the exciting new information (Rheme) to ensure perfect flow.
- Place 'Given' information at the start of the sentence to provide context (e.g., 'The house...').
- Place 'New' information at the end of the sentence for emphasis (e.g., '...was built in 1920').
- Use the passive voice or cleft sentences to shift information into the correct position for flow.
Overview
- Theme（主題）: 文の出発点であり、「その文が何についてのものか」を提示します。通常、すでに語られたこと（既知情報）、文脈から推測できること、あるいは話し手と聞き手の間で共有されている事柄が選ばれます。これを「認知的なアンカー（錨）」と呼びます。
- Rheme（説述）: Theme について述べられる「新しく、重要な情報」です。メッセージの核心であり、コミュニケーションを前進させる役割を担います。
The novel, which received critical acclaim, was adapted into a successful film. という文を見てみましょう。ここでは The novel... が Theme であり、すでに話題に上っているか、特定の小説を指していることが前提です。そして was adapted into a successful film が Rheme であり、この文で最も伝えたい「新しい事実」です。Elephants (Theme) have long trunks (Rheme). となります。英語では「場所」が主題の役割を果たすため、文頭に何を持ってくるかが、日本語の「は」をどこに付けるかと同じくらい重要な意味を持つのです。- Topical Theme（対人的主題）: 文のトピックを示す要素。通常、主語がこれに当たります（Unmarked Theme）。
- Textual Theme（テキスト的主題）: 前後の文とのつながりを示す要素。接続詞や接続副詞など。
- Interpersonal Theme（対人的主題）: 話し手の態度や確信度を示す要素。副詞や法助動詞など。
The financial markets reacted strongly to the news. |After several rounds of negotiations, the contract was signed. |However, the results proved inconclusive. |Frankly, the proposal lacks ambition. |However, frankly, the current strategy is unlikely to succeed. という文では、However（Textual）、frankly（Interpersonal）、the current strategy（Topical）が重なり、一つの長い Theme を形成しています。このように情報を重層的に配置することで、文のニュアンスを精密にコントロールできるようになります。- 学術的・専門的なライティングでの「凝集性（Cohesion）」の維持:
We analyzed the economic indicators. These indicators suggest a period of growth.- 修辞的な強調（Rhetorical Emphasis）:
Despite initial optimism, the project encountered unforeseen technical difficulties, resulting in significant delays and increased costs.（後半の Rheme が強いインパクトを与えます）- 説得力のあるプレゼンテーション:
Given the evolving regulatory landscape, our new compliance software offers unparalleled peace of mind.（「規制環境の変化」という共通認識から始める）- 複雑な情報の整理:
Marked Theme（前置された副詞句など）を使って、まず「時・場所・条件」という枠組み（Context）を提示します。これにより、聞き手の脳内に情報を入れるための「フォルダ」を先に作ってあげることができます。In the context of global supply chain disruptions, the need for local manufacturing has never been greater.- 1「重すぎる主語（Heavy Subject）」の問題:
- *Typical Mistake*:
The recently discovered and highly controversial rare astronomical phenomenon baffled scientists. - *Correction*:
Scientists were baffled by the recently discovered and highly controversial rare astronomical phenomenon.（受動態を使い、重い情報を文末の Rheme に逃がす） - *Why*: 英語は「End-weight（文末重点）」を好むため、新しい複雑な情報は文末に置くのが自然です。
- 1主題の不一致（Theme Inconsistency）:
- *Inefficient*:
The company launched a new product. Customers loved the design. Sales increased rapidly. - *Improved*:
The company launched a new product. This product was loved by customers for its design, and it led to a rapid increase in sales. - *Why*:
This productやitを Theme に固定することで、読者の意識の焦点を維持できます。
- 1「There is/are」の乱用:
There is... を使いすぎる傾向があります。しかし、すでに文脈がある場合は、既存の要素を Theme にした方がスムーズです。- *Weak*:
There is a problem with the server. - *Strong*:
The server is experiencing a technical problem.（サーバーが既知なら、それを Theme にすべき）
The report (Theme) was written by John (Rheme). |It was John who wrote the report. |At the top of the hill stood an ancient temple. |Such ideas we cannot accept. |Marked Theme や、It を仮の主語にする強調構文などでは、主語と Theme（情報の出発点）は一致しません。Theme はあくまで「文の最初に配置された情報的な要素」を指します。Once upon a time, there was an old man (New). The old man (Given) went to the mountains... という流れと完全に一致します。Thematic Progression と呼びます。ぜひ自分の書いたエッセイで見直してみてください。Information Flow Strategies
| Strategy | Structure | Purpose | Example |
|---|---|---|---|
|
Standard
|
Theme (Given) + Rheme (New)
|
Natural flow
|
The cat (G) sat on the mat (N).
|
|
Passive
|
Object as Theme + Verb + Agent
|
Maintain focus
|
The mat was sat on by the cat.
|
|
It-Cleft
|
It + be + Focus + Clause
|
Highlight specific info
|
It was the cat that sat on the mat.
|
|
WH-Cleft
|
What-clause + be + Focus
|
Highlight the result/action
|
What the cat did was sit on the mat.
|
|
There-Intro
|
There + be + New Subject
|
Introduce new info
|
There is a cat on the mat.
|
|
Inversion
|
Place/Direction + Verb + Subject
|
Dramatic/Literary flow
|
On the mat sat a cat.
|
Meanings
Theme is the 'starting point' or 'anchor' of a sentence (usually old info), while Rheme is the 'message' or 'new info' that follows.
Thematic Progression
The method of linking sentences by making the Rheme of one sentence the Theme of the next.
“I saw a movie. The movie was about space. Space is a vast vacuum.”
End-Focus
The tendency to place the most important or 'heavy' information at the end of a clause.
“What we need is a total overhaul of the system.”
End-Weight
Placing long, complex phrases at the end of the sentence to avoid 'top-heavy' structures.
“It surprised me that he decided to quit his job without having another one lined up.”
Reference Table
| 概念 | 機能 | 要素の例 | 流れへの影響 |
|---|---|---|---|
|
Theme
|
文脈を設定；既知の情報
|
`Yesterday`
|
スムーズな始まりを確立する
|
|
Rheme
|
新しい主要な情報を伝える
|
`I met an old friend.`
|
核となるメッセージを提供する
|
|
Old Info
|
聞き手がすでに知っていること
|
`My sister`
|
親しみやすい基盤を作る
|
|
New Info
|
伝えられる主要なメッセージ
|
`just got engaged!`
|
重要な更新を強調する
|
|
Informational Flow
|
既知から新規への情報の配置
|
`As for the report, it's due Monday.`
|
明確さと自然さを確保する
|
|
Communicative Dynamic
|
テキスト内で情報が展開する方法
|
`The reason she left was simple.`
|
読者の注意を効果的に向ける
|
|
Default Order
|
既知が新規より先
|
`On the table, there was a book.`
|
混乱や唐突さを防ぐ
|
|
Marked Theme
|
強調のための非主語テーマ
|
`Very carefully, he opened the box.`
|
冒頭の要素に注意を引く
|
フォーマル度スペクトル
The project has reached its conclusion. (Work status)
We've finished the project. (Work status)
The project's done. (Work status)
Project's wrapped. (Work status)
情報フロー：テーマとリーム
テーマ
- Known Information すでに確立された文脈。
- Given 予測可能または共有された知識。
- Starting Point メッセージの場面を設定する。
- First Element 通常、節の冒頭にある。
リーム
- New Information 主要なメッセージまたは要点。
- Unexpected コミュニケーションの焦点。
- Communicative Value 最も重要な意味を持つ。
- Follows Theme テーマの後のすべて。
目的
- Clarity メッセージを理解しやすくする。
- Naturalness ネイティブのような英語の響きを実現する。
- Emphasis メッセージの主要な部分を強調する。
- Cohesion テキスト内のアイデアをスムーズにつなぐ。
テーマとリーム：早見表
自然な英語の流れを作る
既知の文脈や確立された話題は何ですか？
伝えたい主要な新しいメッセージは何ですか？
自然で分かりやすく聞こえますか？
実際のテーマ
主語テーマ
- • `The professor` explained.
- • `My sister` called.
- • `The company` announced.
副詞テーマ
- • `Yesterday,` it rained.
- • `In London,` she lives.
- • `Carefully,` he opened it.
節テーマ
- • `What he said` was true.
- • `That she failed` surprised us.
- • `To succeed` is difficult.
目的語／補語テーマ
- • `Him I know,` not her.
- • `Happy I am` to see you.
レベル別の例文
I have a car. The car is red.
This is my friend. His name is Tom.
I live in London. London is big.
Look at that bird. It is blue.
I bought a book yesterday. The book was very expensive.
Do you like the cake? I made it this morning.
Where is the bank? The bank is next to the park.
He has a new job. The job is in New York.
We visited the museum, which was built in 1850.
The weather was terrible. Because of this, we stayed home.
I met a woman named Sarah. She works as a doctor.
The film ended at midnight. After that, we went to bed.
The results were published on Tuesday. They were analyzed by experts.
There are many reasons why the project failed.
It is important to remember that safety comes first.
The house, which had been empty for years, was finally sold.
What the committee failed to realize was the scale of the problem.
Rarely have we seen such a display of public emotion.
It was only after the second attempt that the code worked.
The proposal was rejected. This rejection led to a series of protests.
To the north of the city lies a vast, unexplored wilderness.
Such was the intensity of the storm that the trees were uprooted.
Whether the policy will succeed remains a matter of intense debate.
The data suggests a trend; a trend that cannot be ignored.
間違えやすい
Learners think passive is only for when the 'doer' is unknown.
Learners assume the Subject is always the Theme.
Both use 'that' or 'who'.
よくある間違い
A dog I have. It is big.
I have a dog. It is big.
The book I liked. The story was good.
I liked the book. The story was good.
I went to Paris. My friend lives there. Paris is beautiful.
I went to Paris. It is beautiful, and my friend lives there.
That the economy is failing is obvious.
It is obvious that the economy is failing.
文型パターン
It is ___ that ___.
What ___ is ___.
There has been a ___ in ___.
Not only ___ but also ___.
Real World Usage
In my previous role, I was responsible for...
This phenomenon can be explained by...
A local man was arrested today following...
The party? Yeah, I'm coming.
The 'Reset' button should be pressed for five seconds.
Once upon a time, there lived a king.
It is hereby agreed that...
That new movie? Absolute trash.
流れを意識して聞こう
Yesterday, I went to the park.
「重いテーマ」は控えめに
The surprising discovery of a new species was announced today.
主語だけじゃないよ
Last night, I watched a movie.
明確さがカギ
To be clear, we need to finish this by Friday.
点と点をつなげよう
Smart Tips
Use 'It' as a dummy subject and move the long clause to the end.
Use an 'It-cleft' to put that person in the spotlight.
Ensure your first sentence (the Topic Sentence) has a clear Theme that connects to the overall theme of the text.
Vary your Themes. Don't start every sentence with 'I' or 'The company.' Use time phrases or adverbs as 'Marked Themes.'
発音
Nuclear Stress
The main stress of a sentence almost always falls on the last content word of the Rheme.
Falling Intonation
The results are IN. ↘
Signals the completion of the new information (Rheme).
暗記しよう
記憶術
Theme is the 'Them' (the people/things we already know); Rheme is the 'Room' (the new space we are entering).
視覚的連想
Imagine a spotlight on a stage. The Theme is the actor already standing there in the light. The Rheme is the new actor walking into the spotlight from the shadows.
Rhyme
Start with what's old, let the story be told; end with the new, and the meaning comes through.
Story
A traveler (Theme) arrives at a gate (Rheme). The gate (new Theme) opens to a garden (new Rheme). The garden (new Theme) contains a fountain (final Rheme). Each sentence 'hands off' the baton to the next.
Word Web
チャレンジ
Take a paragraph from a news article. Circle the first 3 words of every sentence. See if they refer back to the previous sentence.
文化メモ
Academic writing strictly follows the 'Old-to-New' flow to ensure clarity in complex arguments.
Often uses 'it' extraposition more frequently in formal speech to sound polite and indirect.
News headlines often 'front' the most shocking (New) info to grab attention, breaking standard flow rules.
The concept was developed by the Prague School of Linguistics in the 1920s, specifically by Vilém Mathesius.
会話のきっかけ
Tell me about your favorite city. What makes it special?
What is the most important problem facing the world today?
Describe a time you were surprised. What happened?
If you could change one law, what would it be?
日記のテーマ
よくある間違い
Test Yourself
`______, the news about the merger surprised everyone.`
Choose the sentence with the most natural information flow:
Arrange the words in the correct order:
All words placed
Click words above to build the sentence
Score: /3
練習問題
8 exercisesI love the old library. A famous architect designed it in 1890.
Choose the best follow-up:
It was ___ who authorized the payment.
Find and fix the mistake:
Which sentence is stylistically poor?
In English, the 'Rheme' usually contains information that the listener already knows.
A: 'What happened to your phone?' B: '___'
Select the pseudo-cleft structure:
the / corner / sat / in / a / cat / black
Score: /8
Practice Bank
11 exercises`______, the old library will undergo major renovations.`
`A terrible accident happened on the highway this morning.`
Select the sentence with the best information flow:
Translate into English: 'La razón por la que él renunció fue la presión.'
Arrange these phrases into a sentence:
Match the Themes with their Rhemess:
`______ about the project is the tight deadline.`
`An innovative solution was proposed by the engineering team for the efficiency problem.`
Choose the sentence with the best information flow:
Translate into English: 'Lo que realmente me impresionó fue su persistencia.'
Arrange these words into a sentence:
Score: /11
よくある質問 (8)
Not always, but in English, it usually is. When the Theme is not the subject (e.g., 'Yesterday, I went...'), we call it a 'Marked Theme.'
Because it looks at the *function* of the words in a conversation (what is known vs. what is new) rather than just their grammatical labels (noun, verb).
In complex sentences, yes. Each clause can have its own internal Theme/Rheme structure.
Absolutely. In speech, we use intonation to highlight the Rheme, but the word order still usually follows the Old-to-New pattern.
It's the principle that longer, more complex phrases should come at the end of a sentence to make it easier to process.
Ensure the Theme of your new sentence relates to the Rheme of the previous one. This creates a 'chain' of logic.
It's very effective for *introducing* a new subject for the first time. Once introduced, that subject becomes 'Old' info.
Yes, for specific effects. For example, 'Fronting' puts the new info first to surprise the reader (e.g., 'Incredibly, he won!').
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Tema y Rema
Spanish uses word order flexibility where English uses the passive voice.
Wa (は) vs Ga (が)
Japanese has a dedicated 'Theme marker' particle.
Thema-Rhema
German case markings allow for more flexible Theme selection.
Mise en relief
French relies more heavily on clefting (C'est...) than English.
Al-Mubtada' wal-Khabar
Arabic often starts with the Verb, making the 'Action' the Theme.
Topic-Comment
Chinese allows 'Topic-fronting' without needing a passive or cleft structure.
Learning Path
Prerequisites
関連動画
05:02 The 3 best predictors of how well you’ll age - Juulia Jylhävä
Grammar Lesson #1 - Tips to Improve Your Sentence Structure
Oxford Online English
English Sentence Structure and Word Order in English
English Fluency Journey
Grammar Lesson. How to make Sentences in English. Word Order in English.
English Lessons with Kate
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