call on

呼びかける、要請する

何かをするよう人に求めること。公の場や助けが必要な時によく使う。

やさしい英語で： To ask or urge someone to do something, often publicly or because their help is needed.

• We called on volunteers to help.
• The workers called on the company to improve safety.
• Officials may call on experts to investigate the accident.

使い方： call on someone to do something (The mayor called on residents to save water.)

類義語： ask, urge, appeal to

よく使う表現： call on someone, call on the government

指名する

授業や集まりで、質問に答えたり話したりする人を選ぶこと。

やさしい英語で： To choose someone in a class or group to answer a question or speak.

• The teacher called on me.
• She never calls on students who have not raised their hands.
• Will you call on Ben to answer the next question?

使い方： call on someone to do something (The teacher called on me to explain my answer.)

類義語： pick, select

よく使う表現： call on someone, call on a student

訪ねる、訪問する

人に会いに行くこと。普通は短い訪問を指す。

やさしい英語で： To go to see someone, usually for a short visit.

• We called on my aunt yesterday.
• I might call on you this afternoon.
• Do you still call on your old neighbours?

使い方： call on someone (We called on our neighbours after lunch.)

類義語： visit, drop in on

よく使う表現： call on someone, call on friends

頼る、活用する

必要な時に、使える助けや知識、力を利用すること。

やさしい英語で： To use available help, knowledge, or strength when you need it.

• She called on all her strength.
• We can call on experts for help.
• He called on years of experience to handle the crisis.

使い方： call on someone/something (She called on her experience to solve the problem.)

類義語： draw on, use, turn to

よく使う表現： call on reserves, call on experience, call on someone

誤りを指摘する、問いただす

人の発言や行動が間違っている、または不誠実だと指摘すること。

やさしい英語で： To tell someone that something they said or did is wrong or dishonest.

• She called him on his lie.
• Will anyone call the manager on that mistake?
• They called me on my exaggerated story.

使い方： call someone on something (I called him on his false claim.)

類義語： challenge, confront

よく使う表現： call someone on something, call someone on lies