Articles Tagged: unit7 what is nature lesson23【北京版小学英语，四年级上册PPT课件】

Unit7Whatisnature?Lesson23重点词汇hot热的become变成，成为clever聪明的ice冰Let’slearn1.Sorainbecomessnowinwinter.因此冬天雨变成雪。Icecanbecomewa