It is (was) 被强调部分+ that (who) + 句子其他部分.
原句:My father did the experiment in the lab yesterday evening.
我爸爸昨天晚上在实验室做实验.(强调句的翻译可以不变)
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.