想要提高AEIS考试成绩 那就掌握not...until的用法

　　为了提高报名2017AEIS考试同学的英语水平，AEIS考试在线特别为同学们带来一些考试技巧。这次介绍的是not...until用于强调句型的用法。

　　有这样一道考题，其中涉及了 not…until… 句型：

　　It was not __________ he took off his dark glasses __________ I realized he was a famous singer.

　　A. when，that B. until，that C. until，when D. when，then

　　此题选 B。考查 not...until 的强调结构，其基本句型为：

　　It is (was) not until (时间状语) that (不用否定)

　　他妻子走了之后他才来。

　　正：He didn't come until his wife left.

　　正：It was not until his wife left that he came.

　　直到雨停他们才出发。

　　正：They didn't start until the rain stopped.

　　正：It was not until the rain stopped that they started.

　　请做以下各题：

　　1. It was not until midnight ________ the noise of the street stopped.

　　A. that B. this C. since D. at which

　　2. It was not _______1920 _______ regular radio broadcast began.

　　A. for，that B. until，that C. for，when D. until，when

　　3. It was not _______ you had explained how ________ I managed to do it.

　　A. for，that B. until，that C. for，when D. until，when

　　答案：1. A 2. B 3. B

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