Question

It was back home after the experiment. ...

It was back home after the experiment. A．not until midnight did he go B．until midnight that he didn’t go C．not until midnight that he went D．until midnight when he didn’t go

Answer 1

C

试题分析：句意，直到午夜，他才做完实验回家。not... until…句型的强调句的基本结构：It is / was not until + 被强调部分 + that + 其他成分，因为句型It is / was not…已经是否定句了，所以that后面的从句要用肯定句，切勿再用否定句，故选C。 点评：一定要掌握强调句的用法。强调句的判断，一般说来，如果把句子中的It is/was…that去掉，稍加调整语序，能还原成完整的句子，并且句子意思依然完整，则为强调句型，否则为其他从句。我们应熟记这些基本规则。