题目内容
17.除非你努力学习,否你则会考试不及格.Unless you work hard,youwon'tpass the exam.
分析 Unless won't.
解答 答案:Unless won't.
表示除非用unless引导的条件状语从句,遵循主将从现的规则,结合句意主句用否定句,在will后加上not,故答案是Unless won't.
点评 unless引导条件状语从句,意思是"如果不;除非",相当于 if…not…We'll go for a picnic if it doesn't rain this Sunday=We'll go for a picnic unless it rains this Sunday.
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