i think that doing lots of listening practice is one of the secrets of becoming a good

题目

i think that doing lots of listening practice is one of the secrets of becoming a good
language learner.这是什么句,think 和is ,怎么会同时出现,句子不是只能有一个谓语吗,that又启什么作用

答案

I think that+宾语从句.我认为...
所以that后面都是“我认为..."的宾语成分,但同时这后面也是一个完整的句子.意思就是说,就算去掉前面的 I think that后面也算一个句子,所以叫做宾语从句.（这样解释应该能懂吧）
doing lots of listening practice 这是一个分词短语做的这从句的主语,后面跟be动词单数形式.
句意：我认为做很多的听力练习时成为一个好的语言学习者的秘诀之一.