关于that的指代问题1.H was the author of more than 100 books for boys in the second half of nineteenth century {that} focused on the theme of success coming to those who work hard to achieve it.2.What they share in common,however,is the extraor

关于that的指代问题
1.H was the author of more than 100 books for boys in the second half of nineteenth century {that} focused on the theme of success coming to those who work hard to achieve it.
2.What they share in common,however,is the extraordinary variety of plant and animal life-forms {that} are a necessary part of the ongoing process of their fomation.
1.H was the author of more than 100 books for boys in the second half of nineteenth century {that} focused on the theme of success coming to those who work hard to achieve it.
2.What they share in common,however,is the extraordinary variety of plant and animal life-forms {that} are a necessary part of the ongoing process of their fomation.

1.that 引导定语从句,修饰先行词books, 即that指代more than 100 books .
that作定语从句的主语
2.that 引导定语从句,修饰先行词plant and animal life-forms ,即that指代plant and animal life-forms ,that作定语从句的主语