精选优质文档-倾情为你奉上Unit1 Ways of LearningVocabularyI1.专心-专注-专业1) insert2) on occasion3) investigate4) In retrospect5) initial6) phenomena7) attached8) make up for9) is awaiting10) not; in the least11) promote12) emerged2.1) a striking contrast between the standards of living in the north of the country and the south.2) is said to be superior to synthetic fiber.3) as a financial center has evolved slowly.4) is not relevant to whether he is a goo