B2 · 中上級 チャプター 17

Formal Connectors and Discourse Markers

7 トータルルール
77 例文
5 分
このチャプターのルール クイック練習

Chapter in 30 Seconds

Master the art of sophisticated flow and professional precision in your English communication.

  • Clarify complex ideas using precise formal connectors.
  • Express contrasting viewpoints with academic and professional nuance.
  • Integrate high-level business idioms into your daily discourse.
Connect your thoughts with the precision of a native speaker.

学べること

Elevate your communication! This chapter empowers you to seamlessly connect ideas, clarify nuances with phrases like

that is to say,
and even use business idioms like 'cutting edge' with ease. You'll speak and write with greater sophistication and impact.

  • 英語の明確化: Namely & That is to say
    これらの表現は、あなたの英語をより「明確」にするための「強力なツール」です。「namely」は「具体的なもの」を挙げ、「that is to say」は「言い換え」や「説明」をします。
  • 物事を別の言い方で言う方法（つまり）
    これらのフレーズをマスターすれば、どんな状況でも複雑なアイデアを「明確」に、そして「自信」を持って表現できるようになりますよ。
  • 対立するアイデア: 'Conversely' と 'By Contrast' の使用
    「conversely」と「by contrast」をマスターすると、対照的なアイデアを伝えるときに、表現がグッと洗練されてクリアになりますよ！
  • 文を流れるように始める（接続副詞）
    接続副詞をマスターして、アイデアを「gracefully」つなげよう。文章に「clarity」と「fluency」が加わるよ。
  • 存在を表す There (There is / There are)
    「there is/are」をマスターして、新しい話題をスムーズに導入したり、物事の「存在」をネイティブのように自然に表現できるようになりましょう。これはあなたの英語を一段と「流暢」にするための「魔法のフレーズ」です！
  • ビジネス慣用句：Cutting Edge & Ballpark Figure
    これらのビジネスイディオムをマスターすれば、プロフェッショナルな場面でも日常会話でも、あなたの英語はグッと洗練されます。「fluent」な話し方を目指しましょう！
  • Discourse Markers and Linking Words: B2 Complete Guide
    Discourse markers organise speech and writing: they add information, contrast, give examples, show result, and signal sequence. Mastering a range at B2 level makes writing and speaking much more fluent and cohesive.

Learning Objectives

By the end of this chapter, you will be able to:

  1. 1
    By the end you will be able to: Use 'namely' and 'that is to say' to provide specific definitions in formal writing.
  2. 2
    By the end you will be able to: Contrast two distinct ideas using 'conversely' in a debate or presentation.
  3. 3
    By the end you will be able to: Negotiate costs and technology using business idioms like 'ballpark figure'.

チャプターガイド

Overview

Mastering formal connectors and discourse markers is a game-changer for B2 English grammar learners like you. This chapter isn't just about understanding rules; it's about transforming your English from functional to fluent, allowing you to interact with native speakers with remarkable sophistication and impact. As you move beyond basic communication, the ability to smoothly link ideas, clarify your thoughts, and even use specialized language like business idioms becomes essential for clear, professional, and natural-sounding English.
We'll dive into powerful tools that help you explain yourself with precision, whether you're using namely for specific points or that is to say for deeper clarification. You'll learn to articulate opposing viewpoints using phrases like conversely or by contrast, ensuring your arguments are well-structured. Plus, we'll cover how to make your speech flow effortlessly with transition adverbials and introduce common structures like there is / there are to announce new information.
Get ready to elevate your written and spoken English, making every word count!

How This Grammar Works

At the B2 level, your goal is to express complex ideas clearly and cohesively. This means moving beyond simple sentence structures and embracing the nuance that formal connectors and discourse markers provide. When you want to explain a previous statement in simpler terms, reformulative connectors like in other words are invaluable.
For instance, "The new policy emphasizes eco-friendliness; in other words, we're prioritizing sustainable practices." This ensures your audience always follows your train of thought.
To introduce specific details or examples, namely is your go-to.
We need to address several issues, namely budget constraints, staffing shortages, and project timelines.
If you need to elaborate on a concept or rephrase it for clarity, that is to say is perfect:
The report is due by the end of the quarter, that is to say, by March 31st.
These tools enhance precision. When presenting contrasting information, starting a new sentence with Conversely, or By contrast, followed by a comma, powerfully highlights differences: "The first quarter showed strong growth.
By contrast, the second quarter experienced a slight decline.
For smooth transitions between ideas, transition adverbials such as however, therefore, or moreover at the beginning of a sentence are key.
The team worked hard. However, the results were not as expected.
And, to introduce the existence of something, the versatile there is / there are comes into play:
There is a strong argument for this approach.
Finally, incorporating business idioms like
This technology is truly cutting edge or Can you give me a ballpark figure for the project cost?" demonstrates an advanced grasp of idiomatic English, connecting you with native speakers on a more sophisticated level.

Common Mistakes

  1. 1✗ Using namely when you mean that is to say.
* ✗ "I like fruit, namely, it's good for you."
* ✓ "I like fruit, that is to say, it's good for you."
* *Explanation:* Namely introduces specific examples or a list, while that is to say clarifies or rephrases.
  1. 1✗ Incorrect punctuation with conversely or by contrast.
* ✗
The first option is cheaper by contrast the second is more efficient.
* ✓
The first option is cheaper. By contrast, the second is more efficient.
* *Explanation:* These are strong transition words that usually start a new sentence, separated by a period or semicolon, and are followed by a comma.
  1. 1✗ Overusing or misusing there is/are when a simpler verb is better.
* ✗
There is a meeting that is happening at 3 PM.
* ✓
The meeting is at 3 PM.
* *Explanation:* While useful, avoid redundancy. Use there is/are to *announce* existence, not just to describe an event already known.

Real Conversations

A

A

We need to finalize the project budget today. Can you give me a ballpark figure for the software licenses?
B

B

"In other words, you need an estimate, right? I'd say somewhere between $10,000 and $12,000."
A

A

"The new prototype has some incredible features. It's truly cutting edge."
B

B

Indeed! That is to say, it utilizes the latest advancements in AI, which gives us a huge advantage over competitors.
A

A

Many people prefer remote work for its flexibility. Conversely, some find it harder to collaborate effectively.
B

B

I agree. There are definitely pros and cons to both approaches.

Quick FAQ

Q

What's the main difference between namely and in other words?

Namely introduces a specific list or item that *is* the thing you just mentioned. In other words reformulates or simplifies a previous statement to make it clearer or easier to understand.

Q

Can I use conversely in the middle of a sentence?

While possible with a semicolon, it's generally stronger and clearer at the start of a new sentence, after a period, and followed by a comma. For example:

Statement one. Conversely, statement two.

Q

Are business idioms like cutting edge only for formal settings?

Not necessarily! While they originate in business, many have become common in everyday professional and even semi-formal conversations to describe innovative products or ideas.

Q

When should I use there is versus a simpler subject-verb structure?

Use there is / there are to introduce new information about something existing or being present. For example,

There is a problem we need to discuss.
If the subject is already known or implied, a direct subject-verb can be more concise:
The problem is urgent.

Cultural Context

Native English speakers use these patterns to subtly guide their audience and convey a sophisticated understanding of a topic. While transition adverbials and clarifying connectors are common across all English-speaking regions, the frequency and specific choice of business idioms might vary slightly, with American English often embracing a more direct, fast-paced idiomatic style in corporate settings. Remember, the goal is clarity and flow, whether you're speaking formally or semi-formally.

重要な例文 (8)

1

We need to focus on two main areas, `namely`, product development and marketing.

私たちは主に2つの分野、すなわち製品開発とマーケティングに注力する必要があります。

英語の明確化: Namely & That is to say
2

The company's performance was subpar; `that is to say`, profits declined significantly.

会社の業績は期待外れでした。つまり、利益が大幅に減少したのです。

英語の明確化: Namely & That is to say
3

She loves fruits, `in other words`, apples, bananas, and oranges are her favorites.

彼女は果物が大好きです。つまり、リンゴ、バナナ、オレンジがお気に入りです。

物事を別の言い方で言う方法（つまり）
4

The meeting is at 3 PM, `that is to say`, we should be there by 2:50 PM.

会議は午後3時です。つまり、2時50分までには到着すべきです。

物事を別の言い方で言う方法（つまり）
5

The company's profits increased this year. Conversely, employee satisfaction ratings have declined.

今年、会社の利益は増加しました。逆に、従業員満足度は低下しました。

対立するアイデア: 'Conversely' と 'By Contrast' の使用
6

Japanese etiquette emphasizes formality. By contrast, American culture often values informality.

日本の作法は形式を重んじます。対照的に、アメリカ文化はしばしば非形式性を重視します。

対立するアイデア: 'Conversely' と 'By Contrast' の使用
7

First, you'll need to download the app to get started.

まず、始めるにはアプリをダウンロードする必要があります。

文を流れるように始める（接続副詞）
8

Additionally, the cafe offers delicious vegan options.

さらに、そのカフェは美味しいヴィーガンメニューも提供しています。

文を流れるように始める（接続副詞）

ヒントとコツ (4)

💡

句読点がカギ！

会議の資料を作成する時、正確な情報を伝えるために句読点はとても大切です。例えば、「We need to discuss three key points, namely, budget, timeline, and resources.」のように、「namely」の前には必ずカンマをつけましょう。「that is to say」の場合は、「The project is complex; that is to say, it requires careful planning.」のように、セミコロンやカンマを使います。
frontend.learn_grammar.from_rule: 英語の明確化: Namely & That is to say
💡

句読点は超重要！

句読点にはいつも気を配りましょう！これらのフレーズが完全な節を導く場合は、その後にコンマを置くことが多いです。また、独立した節をつなぐ場合は、前にセミコロンを置くこともあります。これらは、明確さのために一時停止の合図になります。「The report was extensive; in other words, it took hours to read.」
frontend.learn_grammar.from_rule: 物事を別の言い方で言う方法（つまり）
💡

コネクターを使い分けよう！

「conversely」や「by contrast」は素晴らしい表現ですが、こればかり使うのは避けましょうね。文章にリズムが出て、読者を飽きさせないように、「however」や「whereas」、「on the other hand」なども混ぜて使うといいですよ。「The weather was cold; however, we still enjoyed the hike.」
frontend.learn_grammar.from_rule: 対立するアイデア: 'Conversely' と 'By Contrast' の使用
💡

いろんな接続詞を使ってみよう！

いつも同じ接続副詞ばかり使っていませんか？「Moreover,」「Nonetheless,」「Consequently,」など、色々な種類を使ってみると、文章に「variety」と「sophistication」が生まれて、もっと魅力的な表現になりますよ！
It keeps your writing fresh!
frontend.learn_grammar.from_rule: 文を流れるように始める（接続副詞）

重要な語彙 (6)

Namely specifically Conversely on the other hand/opposite Furthermore in addition Cutting-edge highly advanced/innovative Ballpark figure rough estimate Nevertheless despite that

Real-World Preview

presentation

The Tech Pitch

Review Summary

  • Statement + namely/that is to say + specific detail
  • Idea A. Conversely, Idea B.
  • Idiom + Context

よくある間違い

Use 'namely' to list specific things you just mentioned. 'In other words' is for rephrasing an entire concept.

Wrong: We have three problems, in other words, time, money, and staff.
正解: We have three problems, namely, time, money, and staff.

'Conversely' must introduce an opposite or contrasting idea, not a similar one.

Wrong: The price is high. Conversely, it is very expensive.
正解: The price is high. In other words, it is very expensive.

Transition adverbials at the start of a sentence almost always require a comma for correct punctuation.

Wrong: Furthermore it is raining.
正解: Furthermore, it is raining.

このチャプターのルール (7)

1

英語の明確化: Namely & That is to say

B2
これらの表現は、あなたの英語をより「明確」にするための「強力なツール」です。「namely」は「具体的なもの」を挙げ、「that is to say」は「言い換え」や「説明」をします。
We need to focus on two main areas, `namely`, prod...
12 例文
2

物事を別の言い方で言う方法（つまり）

B2
これらのフレーズをマスターすれば、どんな状況でも複雑なアイデアを「明確」に、そして「自信」を持って表現できるようになりますよ。
She loves fruits, `in other words`, apples, banana...
12 例文
3

対立するアイデア: 'Conversely' と 'By Contrast' の使用

B2
「conversely」と「by contrast」をマスターすると、対照的なアイデアを伝えるときに、表現がグッと洗練されてクリアになりますよ！
The company's profits increased this year. Convers...
12 例文
4

文を流れるように始める（接続副詞）

B2
接続副詞をマスターして、アイデアを「gracefully」つなげよう。文章に「clarity」と「fluency」が加わるよ。
First, you'll need to download the app to get star...
12 例文
5

存在を表す There (There is / There are)

B2
「there is/are」をマスターして、新しい話題をスムーズに導入したり、物事の「存在」をネイティブのように自然に表現できるようになりましょう。これはあなたの英語を一段と「流暢」にするための「魔法のフレーズ」です！
There is a new coffee shop opening downtown next w...
12 例文
6

ビジネス慣用句：Cutting Edge & Ballpark Figure

B2
これらのビジネスイディオムをマスターすれば、プロフェッショナルな場面でも日常会話でも、あなたの英語はグッと洗練されます。「fluent」な話し方を目指しましょう！
The new smartphone features `cutting-edge technolo...
12 例文
7

Discourse Markers and Linking Words: B2 Complete Guide

B2
Discourse markers organise speech and writing: they add information, contrast, give examples, show result, and signal sequence. Mastering a range at B2 level makes writing and speaking much more fluent and cohesive.
5 例文

Next Steps

You've just unlocked the secret to high-level English flow. Keep practicing these markers, and you'll notice a massive difference in how people perceive your professional authority!

Write a 200-word formal email using at least 5 markers.

Record yourself explaining a complex topic using 'in other words'.

Continue to: Modal Verbs: Permission, Obligation, Prohibition and Necessity

クイック練習 (10)

正しい明確化のフレーズを使っている文を選びましょう。

Choose the correct sentence:

✓ Correct! ✗ Not quite. Correct answer: He's an introvert, that is to say, he prefers quiet environments.
ここでは、「内向的な人」が実際には何を意味するのかを言い換えて説明するために「that is to say」が使われており、文をより明確にしています。「namely」は具体的な例を挙げるためのもので、定義を言い換えるものではありません。

frontend.learn_grammar.from_rule: 英語の明確化: Namely & That is to say

文章中の間違いを見つけて修正しましょう。

Find and fix the mistake:

Can you give me an exact ballpark figure for the project?

✓ Correct! ✗ Not quite. Correct answer: Can you give me a ballpark figure for the project?
「Ballpark figure」は本質的に概算を意味するため、「exact」はその意味と矛盾します。「exact figure」か「ballpark figure」のどちらかが必要です。もう一つの選択肢は「exact」を削除していますが、「rough」が残っており冗長です。

frontend.learn_grammar.from_rule: ビジネス慣用句：Cutting Edge & Ballpark Figure

Fix the sentence.

Find and fix the mistake:

However I was tired, I went out.

✓ Correct! ✗ Not quite. Correct answer: However, I was tired...
Needs a comma.

frontend.learn_grammar.from_rule: Discourse Markers and Linking Words: B2 Complete Guide

文中の間違いを見つけて修正しましょう。

Find and fix the mistake:

Firstly we need to discuss the project timeline.

✓ Correct! ✗ Not quite. Correct answer: Firstly, we need to discuss the project timeline.
文頭の接続副詞の後にはカンマが必要です。

frontend.learn_grammar.from_rule: 文を流れるように始める（接続副詞）

間違いを見つけて修正しましょう

Find and fix the mistake:

There is three main points in her argument.

✓ Correct! ✗ Not quite. Correct answer: There are three main points in her argument.
主語の「three main points」は複数形なので、動詞は「is」ではなく「are」であるべきです。

frontend.learn_grammar.from_rule: 存在を表す There (There is / There are)

文を完成させる正しいフレーズを選びましょう。

The company has two main branches, ___ the one in New York and the other in London.

✓ Correct! ✗ Not quite. Correct answer: namely
ここでは、「2つの主要な支店」という一般的な記述から、特定の2つの支店を具体的に指定しているので、「namely」を使います。

frontend.learn_grammar.from_rule: 英語の明確化: Namely & That is to say

文を完成させる正しいコネクターを選びましょう。

The city center is always bustling. ______, the suburbs offer a quieter pace of life.

✓ Correct! ✗ Not quite. Correct answer: By contrast
「By contrast」は、都市と郊外の明確な違いを強調するのに最適です。

frontend.learn_grammar.from_rule: 対立するアイデア: 'Conversely' と 'By Contrast' の使用

文章を完成させる正しい形を選びましょう。

The new prototype showcases truly _____ technology.

✓ Correct! ✗ Not quite. Correct answer: cutting edge
「Cutting edge」（名詞の前に来る場合はハイフンで繋がれることが多い）は、先進技術を表す正しいイディオムです。「Cut edge」や「cutting-sharp」は標準的なイディオムではありません。

frontend.learn_grammar.from_rule: ビジネス慣用句：Cutting Edge & Ballpark Figure

Fill in the blank.

___, we need to start now.

✓ Correct! ✗ Not quite. Correct answer: Thus
Formal result.

frontend.learn_grammar.from_rule: Discourse Markers and Linking Words: B2 Complete Guide

Select the correct formal marker.

___, the data is incomplete.

✓ Correct! ✗ Not quite. Correct answer: Furthermore
Formal addition.

frontend.learn_grammar.from_rule: Discourse Markers and Linking Words: B2 Complete Guide

Score: /10

よくある質問 (6)

「namely」と「that is to say」はどちらも、前の発言を明確にしたり、詳しく説明したりする役割があります。聞き手や読み手が意図を完全に理解できるように、より具体的な詳細、言い換え、または説明を導入します。「The problem is complex; that is to say, it has many layers.」
「namely」は、より広い用語をさらに説明する特定の項目や項目のリストを導入したいときに使います。例えば、「We visited several European cities, namely, Paris, Rome, and Berlin.」のように使えます。
主な目的は、不明確だったり複雑だったりする発言を言い換えたり、簡略化したりすることです。聞き手があなたのメッセージを簡単に理解できるように助けます。つまり、「I'm trying to make this clearer for you!」と言うようなものですね。
that is to say は、より正確な説明を提供したり、含意を詳しく述べたりすることが多く、少しフォーマルに聞こえることがあります。in other words は一般的な簡略化のためなので、that is to say は、つまり、意味をもう少し深く掘り下げる時に使います。
主な目的は、以前述べたことと対立する、または対照的なアイデアを導入し、コミュニケーションをより明確で洗練されたものにすることです。これにより、あなたの主張がより説得力を持つようになります。「The first point is clear. Conversely, the second point is ambiguous.」
機能は非常に似ていますが、厳密な同義語ではありません。「conversely」はしばしば直接的な逆転を意味するのに対し、「by contrast」は二つのものの明確な違いを強調します。このニュアンスの違いを理解すると、より正確な表現ができますよ。「If A is true, conversely, B is false. By contrast, coffee is bitter, while tea can be sweet.」
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