题目内容
20．-Linda，shall we go and watch Holland Dafeng Flowers next month？-_______ we have the tickets．（ ）
| A． | If | B． | Unless | C． | Because | D． | Since |
分析 -琳达，下个月我们可以去观看荷兰大丰百花吗？-除非我们有票．
解答 正确答案：B．A引导条件状语从句，表示如果，B也引导条件状语从句，表示除非，相当于if…not，C表原因，因为，D可引导时间或者原因状语从句，表示自从或因为．根据句意可知除非我们有票，我们下个月就可以去观看荷兰大丰百花，故选择B．
点评 本题考查连词辨析，基础题，熟悉每个选项连词的含义及用法，再根据题干进行选择．
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