最关键是要看当还原回去的时候是否需要添加成分,另外强调句的连词只有that/who(m). 例如: It is the hotel where they usually stay in their vacation.（定语从句） 还原后需要加介词：They usually stay in the hotel in their vacation. It is in the hotel that they usually spend their holidays.(强调句） 还原后不需加任何成分They usually spend their holidays in the hotel.
问：It is 开头的句子可带定语从句吗？在没有语境的情况下优先考虑强调句的说法成立吗？
答：It is 。。。。that 是强调句的常见格式，有时定语从句也有这个格式。详情>>
答：详情>>
