中考英语复习资料--中考英语重点单词用法--unless
<p> <span word="unless">unless</span></p><p> <span word="unless">unless</span>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:</p><p> <span word="Unlessheworkshard">Unlessheworkshard</span>,<span word="hewillnotpassthefinalexams">hewillnotpassthefinalexams</span>.</p><p> =<span word="Ifhedoesntworkhard">Ifhedoesntworkhard</span>,<span word="hewillnotpassthefinalexams">hewillnotpassthefinalexams</span>.</p><p> 要是他不努力的话,期末考试将会不及格。</p><p> <span word="Illnotgotoherbirthdaypartyunlesssheinvitesmeinperson">Illnotgotoherbirthdaypartyunlesssheinvitesmeinperson</span>.</p><p> =<span word="Illnotgotoherbirthdaypartyifshedoesntinvitemeinperson">Illnotgotoherbirthdaypartyifshedoesntinvitemeinperson</span>.</p><p> 我不会去参加她的生日晚会,除非她亲自邀请我。</p>
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