Question

求英语高手帮我分析一下两个句子的句法结构问题！（详细一点,把主谓宾定状补和从句什么都说明一下，谢谢）

1、They believe the data support an idea current among marine biologists , that of the "shifting baseline ".
that of the "shifting baseline "是非限制性定语从句吗？如果是，我记得原来老师说非限制性定语从句只能用which引导，不能用that引导呀
2、Today, surrounded by promises of easy happiness ,we need art to tell us ,as religion once did ,Memento mori : remember that you will die ,that everything ends ,and that happiness comes not in denying this but in living with it.
参考书上分析，说that you will die ,that everything ends ,and that happiness comes not in denying this but in living with it是三个并列的同位语从句，是Memento mori 的同位语，但是我觉得我是三个宾语从句，作remember的宾语。不知道我想的对不对

Answer 1

1.that引导的是同位语从句 idea的内容就是后面的shifting baseline
2.这句话的意思是尽管现今幸福的承诺唾手可得，我们仍需要艺术来提醒我们“死亡的征兆”——正如宗教曾做过的那样——要谨记你会死去、万物都会消亡、不承认这一点，幸福不会因此到来，反而当你相信它时，幸福才会与之共存。
我们要做的是分析句子结构，究竟死亡的征兆是什么？是记住后面这些呢，还是说后面这三点。如果解释说是记住这些的话，那么死亡的征兆（象征）就变成了主观的，因为是用冒号所以是对它的解释，如果后面的内容不是修饰前面的话就不会这样用。而用了remember 实际上是省略了同位语从句中的should

Answer 2

1 that of the "shifting baseline 不是非限制性定语从句。从句也是一个句子，有主谓或者主谓宾等成分，但是由引导词引导。第一个句子that后面并不是句子。that是代词，指代idea.
2 that you will die ,that everything ends ,and that happiness comes not in denying this but in living with it是三个并列的宾语从句，作remember的宾语。“remember that you will die ,that everything ends ,and that happiness comes not in denying this but in living with it.”这句话是对Memento mori 的解释。