一、英语中有一些短语包含有介词 to,常见的有 look forward to、take to、be accustomed to、get around to、be used to 等,这些短语后面都要跟动名词,例如:
look forward to 期待;盼望
He was looking forward to working with the new Prime Minister.
他期待着与新首相共事。
take to 养成(做……)的习惯;开始定时(做……)
They had taken to wandering through the streets arm-in-arm.
他们养成了挽着胳膊逛街的习惯。
be accustomed to 习惯于
He is accustomed to hard work.
他习惯于做艰苦的工作。
get around to 抽出时间做;终于去做
They didn't get around to typing up the letter.
他们没能抽出时间把信打印出来。
be/get used to 习惯于
The experienced teacher is used to keeping his students at hard work.
有经验的老师习惯于督促学生用功学习。
二、若把代词 it 放在 to 后面可以形成一个意义完整的句子,那么这个 to 就是介词,后面必须跟动名词,否则这个 to 就是不定式,后面要跟动词原形,例如:
1、look forward to 当把 it 放在 look forward to 后面 look forward to it,可以译为“期待它”,很明显这是一个有意义的句子。
2、hope to 当把 it 放在 hope to 后面 hope to it,意为“希望它”,很明显这个句子意义不完整。
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