急救,宾语不懂呀

题目

急救,宾语不懂呀
(1）I thought __ neccessary for you to make a phone call to your mom.
A.it B.it's
(2)I think __ important for everyone to do something to protect animals.
A.it B.it's
两句有什么区别,为什么1句选it,2句选it's

答案

首先分析成分第一句,think 后面是动词不定式作宾语,think it 形容词 for sb to do sth其实正确的应该是,think (to do sth) 形容词就是,认为 （做某事） ……这里的形容词是宾语补足语原句里的it是形式宾语,真正的宾...