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Joy English · レベル B1 · 助動詞joy-english.com

義務と助言：must, have to, should

名前:日付:

必要なこと、必要でないこと、禁止されていること、したほうがよいことを言い表します。

最も適切な形を選ぼう

各文を最もよく完成させる選択肢を選んでください。

  1. You ___ touch the paintings. It's against the museum rules.
    • a) mustn't
    • b) don't have to
    • c) shouldn't to
  2. It's Saturday tomorrow, so I ___ get up early.
    • a) mustn't
    • b) haven't to
    • c) don't have to
  3. You look tired. You ___ go to bed earlier.
    • a) have
    • b) should
    • c) must to
  4. Yesterday Kofi ___ work late because his colleague was ill.
    • a) had to
    • b) must
    • c) has to
  5. ___ you have to wear a uniform at your school?
    • a) Are
    • b) Must
    • c) Do
  6. Visitors ___ show their ticket at the entrance. That's the rule.
    • a) don't have to
    • b) have to
    • c) shouldn't
  7. You ___ eat so much sugar. It's bad for your teeth.
    • a) shouldn't
    • b) don't have to
    • c) haven't to
  8. Lena ___ take the bus to work. She lives very close to her office.
    • a) has to
    • b) mustn't
    • c) doesn't have to

正しい形を書く

かっこ内の語を正しい形にして入力してください。

  1. My sister is a doctor, so she ___ (have to) work at weekends sometimes.
  2. We ___ (not / have to) wait long at the airport last night. Our bags came quickly.
  3. You ___ (must / not) tell anyone. It's a secret!
  4. You ___ (should / not) leave your bike outside. Someone might take it.
  5. Students ___ (not / have to) buy the books. The school gives them for free.
  6. ___ (do) Ravi have to work tomorrow?
  7. When I was a child, I ___ (have to) share a bedroom with my two brothers.
  8. Next year, Mina ___ (will / have to) take the bus because her school is moving.

解答

最も適切な形を選ぼう

  1. a) mustn't触ることは禁止されているので、mustn't を使います。Shouldn't to は決して正しくありません。
  2. c) don't have to早起きは必要ではありませんが、禁止されてもいないので、don't have to を使います。
  3. b) shouldこれは助言なので、should + to なしの動詞を使います。
  4. a) had toMust には過去形がないので、過去の義務には had to を使います。
  5. c) Dohave to の疑問文には do、does、did が必要です。
  6. b) have to規則は義務を生むので、have to を使います。
  7. a) shouldn'tこれはよくない考えについての助言なので、shouldn't を使います。
  8. c) doesn't have to彼女は歩けるので、バスは必要ありません。doesn't have to を使います。

正しい形を書く

  1. has to現在形で she のときは、have to は has to になります。
  2. didn't have to / did not have toこれは義務のなかった過去の状況なので、didn't have to を使います。
  3. mustn't / must not話すことは禁止されているので、mustn't（must not）を使います。
  4. shouldn't / should notこれはよくない考えについての助言なので、shouldn't を使います。
  5. don't have to / do not have to本を買う必要はないので、don't have to を使います。
  6. doeshave to の疑問文には do または does が必要です。Ravi は1人なので、does を使います。
  7. had toこれは過去の義務なので、had to を使います。
  8. will have to / 'll have toMust には未来形がないので、未来の義務には will have to を使います。

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