语法大师来 that去掉行不行?为什么?

语法大师来 that去掉行不行?为什么?
The tsunami that leveled Japan's northern coastline on March 11th.中的that去掉行不行?为什么?
It's the second quarter in a row the GDP has fallen,meaning Japan is now in a recession.第一小句话中是不是省略了that?为什么省略?meaning Japan is now in a recession做什么成分?
Look deeper into the GDP fall,and the numbers are even more grim.Industrial output,which includes all the consumer products Japan sends around the world,plunged 15.3% in March,the worst ever recorded in Japan's history.The auto industry hurt the most.第一句话Look deeper into the GDP fall做什么成分?even修饰的是什么?includes all the consumer products Japan sends around the world中也省略了that吗?the worst ever recorded in Japan's history.做什么成分?最后一句中的most是什么词性?
以上选自“沪江听力素材奥巴马就中东政策发表讲话 中的几个问题” 网上有原文,从第十段开始看,
4..the worst ever recorded in Japan's history是什么结构做的后制定语?
5.even more是副词even修饰副词more?
6.最后一句中hurt the most,the most是副词吗?

1、The tsunami that leveled Japan's northern coastline on March 11th.
       （1）that 在从句中做主语,不能省略2、It's the second quarter in a row the GDP has fallen, meaning Japan is now in a recession.
           （1）第一小句语法上讲不通,是错的,应该为It's the second quarter in a row  that the GDP has fallen,是it’s ·····that强调句；    （2）meaning Japan is now in a recession为分词短语,meaning为现在分词,后面一句 Japan is now in a recession为meaning的宾语,所以为宾语从句3、Look deeper into the GDP fall, and the numbers are even more grim.Industrial output,
which includes all the consumer products Japan sends around the world, plunged 15.3% in March, the worst ever recorded in Japan's history. The auto industry hurt the most.
     （1)Look deeper into the GDP fall为一个祈使句,通过and与 the numbers are even more grim形成并列句.       (2)even意思是甚至,作为副词,修饰more（也可以认为是修饰这个句子）.
      (3)which includes all the consumer products Japan sends around the world作为定语从句,修饰Industrial output, 这句话先行词是which,句中 Japan sends around the world又是一个定语从句,修饰 consumer products,因为that在从句中作宾语,于是就省略了.     (4)the worst ever recorded in Japan's history作为后置定语,修饰句意所表达的情况.

4、the most ,最高级,在这里意为 最严重
很高兴能为你解答,有不明白的地方可以继续问附件里有高中语法大全,你也可以仔细看看
再问： 很好，但还有几处：1.It's the second quarter in a row that the GDP has fallen为什么是强调句？that引导定从不行吗？ 2.meaning Japan is in a recession为分词短语,那meaning的逻辑主语是什么？ 3.Look deeper into the GDP fall为祈使句,怎么看祈使句？ 字数不允许了，看补充问题
再答： 1、that引导定语从句的话是要在里面做成分的，相当于连词加上代词 而引导强调句的话在句中仅仅就是一个连词 2、主语是meaning前面整个句子，就是说It's the second quarter in a row the GDP has fallen,这句 话陈述的事实作为meaning的逻辑主语 3、祈使句就是“让别人去干什么”，一般动词或be动词开头
再问： 逻辑主语可以是句子？还有3问题没有回答：4..the worst ever recorded in Japan's history是什么结构做的后置定语？
5.even more是副词even修饰副词more？
6.最后一句中hurt the most，the most是副词吗？