Question

It was in the lab ______ was taken charge of by Professor Harris _______ they did the experimen...

It was in the lab ______ was taken charge of by Professor Harris _______ they did the experiment. A．which, that B．that, where C．where, that D．which, where

Answer 1

A

试题分析：能够准确把握句子结构是关键。另外要知道强调句的结构It is/was+被强调部分+that+句子的其他成分，如果被强调的部分是人，可以用who代替that。具体是用is还是 was，要根据具体的时态确定。强调句的用法及判断，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。 本题第一空是一个定语从句，which指代先行词the lab在句中做主语；第二空that与前面的it was构成强调句型的基本结构。句义：就是在有Harris教授负责的实验室里，他们做了那个实验。故A正确。