「〜のは〜からだ」- The Reason Why... Is Because...
Explanation
「〜のは〜からだ」 is a Japanese grammatical structure used to explain the reason or cause behind something, meaning "The reason why... is because..." It is commonly used to clarify the cause of a result or phenomenon, emphasizing the cause-and-effect relationship.
Grammar Pattern
| Grammar Point | Connection | Explanation |
|---|---|---|
| 〜のは〜からだ | Plain form of verb/adjective + のは + Plain form of verb/adjective + からだ | Used to explain the reason behind a result or phenomenon, emphasizing the cause-and-effect relationship. |
Basic Usage
Connection
- Plain form of verb + のは + Plain form of verb/adjective + からだ
- Plain form of adjective + のは + Plain form of verb/adjective + からだ
Meaning
- Means "The reason why... is because..." and is used to explain the cause or reason.
Examples
遅刻 したのは電車 が遅 れたからだ。- Chikoku shita no wa densha ga okureta kara da.
- The reason why I was late is because the train was delayed.
彼 が怒 っているのは私 が約束 を破 ったからだ。- Kare ga okotte iru no wa watashi ga yakusoku o yabutta kara da.
- The reason why he is angry is because I broke the promise.
試験 に合格 したのは毎日 勉強 したからだ。- Shiken ni goukaku shita no wa mainichi benkyou shita kara da.
- The reason why I passed the exam is because I studied every day.
彼女 が泣 いているのは映画 が感動的 だったからだ。- Kanojo ga naite iru no wa eiga ga kandouteki datta kara da.
- The reason why she is crying is because the movie was moving.
Comparison and Differences
Although both 「〜のは〜からだ」 and 「〜から」 can express reasons, their usage and emphasis differ.
| Grammar Point | Usage | Emphasis |
|---|---|---|
| 「〜のは〜からだ」 | Explains the reason or cause | Emphasizes the cause-and-effect relationship, often used to answer "why" questions |
| 「〜から」 | States the reason or cause | Directly states the reason without emphasizing the cause-and-effect relationship |
Examples:
遅刻 したのは電車 が遅 れたからだ。- Chikoku shita no wa densha ga okureta kara da.
- The reason why I was late is because the train was delayed.
電車 が遅 れたから、遅刻 した。- Densha ga okureta kara, chikoku shita.
- Because the train was delayed, I was late.
Deep Dive
「〜のは〜からだ」 is primarily used to explain the reason behind a result or phenomenon, emphasizing the cause-and-effect relationship. It is often used to answer "why" questions or to explain the cause of a specific situation. Compared to 「〜から」, 「〜のは〜からだ」 places more emphasis on the direct relationship between the cause and the result.
Summary
「〜のは〜からだ」 is a Japanese grammatical structure used to explain the reason or cause behind something, meaning "The reason why... is because..." It emphasizes the cause-and-effect relationship and is commonly used to answer "why" questions or explain the cause of a phenomenon. Mastering this structure will help you clearly express cause-and-effect relationships in Japanese.