题目内容
15．-Could you tell me if you ______ to Hongkong this summer holiday？--I won't do it unless I _____ good grades in the entrance exam．（ ）
| A． | travel，get | B． | would travel，will get | ||
| C． | will travel，get | D． | travel，will get |
分析 -请你告诉我你是否在今年的暑假里去香港旅游？
-我将不去除非在入学考试中取的好成绩．
解答 答案：C．题干里有个if，第一个if是"是否"的意思，引导的是宾语从句，根据 this summer holiday应该用将来时will travel；第二句unless是"除非…"的意思，其时态应该是"主将从现"，即主句用将来时，从句应该用一般现在时；根据语境，故选C．
点评 以if引导的宾语从句，一个是条件状语从句；unless"除非…"的意思，其时态应该是"主将从现"，即主句用将来时，从句应该用一般现在时；做题时应该首先明确它引导的是什么从句，然后根据它的时态用法，来确定选项．
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