英语：关于初中的英语从句问题,我还是初一下学生,根据一些课外了解,从句初二学,初一书竟出现了从句!

题目

英语：关于初中的英语从句问题,我还是初一下学生,根据一些课外了解,从句初二学,初一书竟出现了从句!
例句如下：1.It is also amazing that a snake eats little or nothing in cold winter.
2.It is interesting that they live without water for a long time.
3.I was surprised to know that there are only seven bones in it.
4.I also know that we need to keep our house clean.
以上差不多就这些,可能书上还有,虽然老师没提到过,问老师老师只是说八年级就懂了,我就是好奇所以来问问,这些that是什么意思,有实际意思吗,最好解释一下从句的意思,最好通俗易懂,别复制一大堆的,懒得看!看了也看不懂!解释我听懂了,100——300赏分

答案