will后面为什么加be

问题描述:

will后面为什么加be
1;People will live to be 200 years old.为什么加be?
2;People will have robots in their homes 中为什么不加be?

will 要加动词原形.be才是原形.1;People will live to be 200 years old.为什么加be?答:本句中的be“是、成为”的意思.中文:人们将活到200岁.2;People will have robots in their homes 中为什么不加be?答:will...