Japanese JLPT Grammar Point
A。というのは B。(Toiu no wa~)

A。というのは B。(Toiu no wa~)

Short explanation:

Used to give an explanation or provide additional information for A; 'that is to say', 'in other words'.

Formation:

[Statement A]。というのは、[Statement B]。

Examples:

彼は非常に疲れています。というのは、昨夜、車で遠くまで行ってきたためです。
Kare wa hijou ni tsukareteimasu. to iu no wa, sakuya, kuruma de tooku made itte kita tame desu.
He is very tired. That is to say, because he went far by car last night.
このレストランはおすすめです。というのは、料理が美味しいし、雰囲気もいいからです。
Kono resutoran wa osusume desu. to iu no wa, ryouri ga oishii shi, fun'iki mo ii kara desu.
I recommend this restaurant. That is to say, because the food is delicious and the atmosphere is nice.
試験に落ちた。というのは、十分に勉強しなかったからです。
Shiken ni ochita. to iu no wa, juubun ni benkyou shinakatta kara desu.
I failed the exam. In other words, because I didn't study enough.
彼女は独特な趣味がある。というのは、昆虫収集だ。
Kanojo wa dokutoku na shumi ga aru. to iu no wa, konchuu shuushuu da.
She has a unique hobby. Namely, insect collecting.

Long explanation:

The grammar point A。というのは B。 is used to provide an explanation, definition, or further information about statement A. It can be translated as 'that is to say', 'in other words', or 'namely' in English.

Detailed Grammar notes:

Processing keyword: A。というのは B。(Toiu no wa~)

Japanese Grammar Point: A。というのは B。(Toiu no wa~)

Grammar Point: A。というのは B (To iu no wa ~)

1. Introduction

The grammar structure A。というのは B is used to clarify or define something mentioned previously (A) by providing its explanation or meaning (B). This structure is commonly used in both spoken and written Japanese to give more context or detail about a subject.

2. Core Grammar Explanation

Detailed Explanation

  • Structure:
    • A: Statement or term you want to explain or define.
    • というのは: A phrase meaning "what is called" or "to say that."
    • B: Clarification or definition of A.
  • Meaning:
    • The phrase translates roughly to "What I'm saying is B," where B elaborates on A.

Formation Diagram

 |-------- A --------| --> Statement / Term
 |  というのは       |
 |-------- B --------| --> Clarification / Definition

Visual Aids

Term Meaning
A Original term or phrase
というのは "What (something) means" or "regarding (something)"
B Explanation or definition

3. Comparative Analysis

This structure can be compared to:

  • A。つまり B (A. tsumari B): Both provide explanations, but つまり implies a conclusion or rephrasing rather than defining.
  • A。ということは B (A. to iu koto wa B): This also indicates that B is a consequence or implication of A but is less direct than というのは.

4. Examples in Context

Sentence Examples

  1. Informal Context:
    • 猫というのは、かわいい動物です。
    • (Neko to iu no wa, kawaii doubutsu desu.)
    • "A cat is what is called a cute animal."
  2. Formal Context:
    • 日本語というのは、日本の言語です。
    • (Nihongo to iu no wa, Nihon no gengo desu.)
    • "The Japanese language is the language of Japan."
  3. Written Context:
    • 環境問題というのは、私たちの未来に影響を与える重要なテーマです。
    • (Kankyou mondai to iu no wa, watashitachi no mirai ni eikyou o ataeru juuyou na teema desu.)
    • "Environmental issues are an important theme that impacts our future."
  4. Spoken Context:
    • 昨日行ったレストランというのは、すごくおいしかったです。
    • (Kinou itta resutoran to iu no wa, sugoku oishikatta desu.)
    • "The restaurant I went to yesterday was very delicious."

5. Cultural Notes

Cultural Relevance

Using というのは shows a level of politeness and respect in conversations, often expected in formal settings. It’s common in educational contexts, such as lectures or presentations, where terms need clarification.

Idiomatic Expressions

  • それというのは (Sore to iu no wa): "What that means is ..."
  • 彼というのは (Kare to iu no wa): "What he means is ..."

6. Common Mistakes and Tips

Error Analysis

  • Learners may confuse というのは with つまり or ということは, which can lead to misunderstandings. Make sure to use というのは for definitions rather than conclusions.

Learning Strategies

  • A helpful mnemonic: "To define with ‘no wa’" can help you remember that というのは is used for defining terms or phrases.

7. Summary and Review

Key Takeaways

  • A。というのは B is used to provide definitions or clarifications in Japanese.
  • It is polite, suitable for both spoken and written forms.
  • It differs slightly from similar grammar structures in meaning and usage.

Quick Recap Quiz

  1. What does A。というのは B mean in English?
  2. How is というのは different from つまり?
  3. In which context would you most likely use this grammar point? Answering these questions will reinforce your understanding of how to use というのは correctly in Japanese!
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