It is in this very village----she will build her first schoo

逗号隔开了,强调句型不隔开的.
It is...that强调句型,就是在这个小村子里,她建起了她的第一所学校
which引导的定语从句,修饰前面整个句子.这件事激励大家都去帮助她.
再问： 为什么不是第一个which第二个that
再答： 强调句型去掉it is...that后必须还是个完整的句子。 如果后半句才是强调句的话就是：in this very village inspires everyone to help her.缺主语。因此that不能用在第二空。 但如果前半句是强调句的话：in this very village she will build her first school.主谓完整。因此that应该是在第一空。