这句英语有错吗?It's hard to imagine how the world would be like if there no forests

问题描述:

这句英语有错吗?It's hard to imagine how the world would be like if there no forests

句子有错,主要是if后面的状语从句没有动词,并且要用上虚拟,第二,宾语从句的引导词不用how,要用what
应该改为:
It's hard to imagine what the world would be like if there (were ) no forests