1.fall in love with 爱上了(非延续性动词词组)

  What are you going to do if he falls in love with another woman?

  She fell in love with the cottage at once.

  She fell in love with the house as soon as she saw it.

2.be in live with 跟…恋爱,相爱;喜欢(延续性动词词组)

  He had never been in love before.

  Tom and Mary are in love (with each other).

  John is in love with Helen.

  If you’re really in love with art, you don’t mind hard work.