5个句子让你吃透英语的强调句

原句：　My father did the experiment in the lab yesterday evening.　强调主语：It was my father who did the experiment in the lab yesterday evening.　强调宾语：It was the experiment that my father did in the lab yesterday evening.　强调时间：It was yesterday evening that my father did the experiment in the lab. (注意不用when)　强调地点：It was in the lab that my father did the experiment yesterday evening. 强调句的结构是：It +be +强调部分+ that (who) +主谓句。 强调句的连词只有两个，that和who。当强调的部分是人，且为句子的主语时，才用"who"，其余用that。 此结构强调的成分仅限于主语，宾语和状语。