高考英語(yǔ)詞匯解析:on board
on board是介詞還是副詞
on board 既可以用作介詞,也可以用作副詞。
1. 用作副詞時(shí),表示“在船上”。如:
Have the passengers gone on board? 旅客都已上船了嗎?
As soon as I’m on board, I always feel sick. 我一上船就想嘔。
2. on board 用作介詞時(shí),其后可直接跟表示車(chē)、船、飛機(jī)的名詞。如:
He went on board the train just now. 他剛上火車(chē)。
Mr Smith is on board one of those ships. 史密斯先生在其中的一條船上。
There were ten people on board the plane. 當(dāng)時(shí)飛機(jī)上有十個(gè)人。