2016中考英语重点单词用法:unless

2019-11-29 14:01:18

  unless
  unless conj.除非;若非;如果不。它是个从属连词,引导条件状语从句。由于unless具有否定意义,因此它引导的是个否定的条件。在中学阶段可以把它看作是if……not的同义表达。值得注意的是,unless从句如同if从句一样也常用一般现在时态表将来。如:
  Unless he works hard, he will not pass the final exams.
  =If he doesn't work hard, he will not pass the final exams.
  要是他不努力的话,期末考试将会不及格。
  I'll not go to her birthday party unlesss he invites me in person.
  =I'll not go to her birthday party if she doesn’t invite me in person.
  我不会去参加她的生日晚会,除非她亲自邀请我。