中学英語でとても大事なテーマなので、できるだけ分かりやすく説明しますね。
① be動詞とは?
be動詞は、主語の「状態・存在・正体」を表す動詞です。
日本語の「〜です」「〜にいる」に近い働きをします。
現在形のbe動詞
例文
I am a student.(私は学生です)
She is happy.(彼女は幸せです)
They are in Tokyo.(彼らは東京にいます)
② be動詞の過去形
be動詞は 特別な変化 をします。
例文
I was tired yesterday.(私は昨日疲れていました)
They were at home.(彼らは家にいました)
否定文
was → was not(wasn't)
were → were not(weren't)
例:
I wasn't busy.(私は忙しくなかった)
疑問文(be動詞は前に出る)
Was she happy?
Were you at school?
③ 一般動詞とは?
一般動詞は、行動や動作を表す動詞です。
例:
play(遊ぶ)
eat(食べる)
go(行く)
study(勉強する)
👉 be動詞以外の動詞はすべて一般動詞と考えてOKです。
④ 一般動詞の過去形
一般動詞の過去形には 2種類あります。
① 規則動詞(-ed をつける)
例文
I played soccer yesterday.
(私は昨日サッカーをしました)
② 不規則動詞(形を覚える)
例文
She went to school.
(彼女は学校へ行きました)
👉 不規則動詞は 暗記が必要 です。
⑤ 一般動詞(過去形)の文の作り方
肯定文
👉 主語 + 動詞の過去形
I watched TV.
He ate lunch.
否定文
👉 did not + 動詞の原形
⚠️ 過去形にしない!
I did not play tennis.
She didn't go to school.
疑問文
👉 Did + 主語 + 動詞の原形?
Did you study yesterday?
Did he come home early?
答え方:
Yes, I did.
No, I didn't.
⑥ be動詞と一般動詞の大きな違い(重要)
❌ I was play soccer.
⭕ I played soccer.
⭕ I was a soccer player.
⑦ まとめ
be動詞:状態・存在(am / is / are → was / were)
一般動詞:動作・行動(play / go など)
過去形の否定・疑問は
👉 be動詞 と 一般動詞 で作り方が全く違う!
問題① ( )に正しい語を入れなさい
1
I ( ) tired yesterday.
2
They ( ) at the park last Sunday.
3
She ( ) soccer after school.
4
We ( ) lunch at twelve.
問題② 次の文を【否定文】にしなさい
5
He was busy yesterday.
6
I played the piano.
問題③ 次の文を【疑問文】にしなさい
7
You were late.
8
She went to school.
問題④ 日本語に合う英文を作りなさい
9
私は昨日家にいました。
10
彼らは先週映画を見ました。
✨ 解答・解説
問題①
was
👉 I was tired yesterday.(be動詞・過去)were
👉 They were at the park last Sunday.(主語がthey)played
👉 She played soccer after school.(一般動詞・過去形)ate
👉 We ate lunch at twelve.(eat → ate)
問題②
👉 He was not busy yesterday.
(wasn’t でもOK)
👉 I did not play the piano.
⚠️ played にしない!
問題③
👉 Were you late?
👉 Did she go to school?
⚠️ went → go
問題④
👉 I was at home yesterday.
👉 They watched a movie last week.
⭐ 重要ポイントおさらい
be動詞の過去:was / were
一般動詞の否定・疑問:必ず did を使う
did が出たら → 動詞は原形
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