求问两道prep pack5中遇到的SC

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发现5&6sc还挺难的。。。而且有些题一直找不到解析

1.Human mortalitystatistics on natural deaths suggest the possibility that the normal human lifespan comprises an even number of days.

    that the normal human life span comprisesan even number of days

    that an even number of days may becomprising the normal human life span

    of the normal human life span to becomprised of an even number of days

    of an even number of days that may comprisethe normal human life span

    of an even number of days to comprise thenormal human life span

2.A team of researchers reported that five endangered bird species had resumed nesting or investigated nesting boxes erected by volunteers having been ferried out to the island last month.

• 
  investigated nesting boxes erected by volunteers having been
  
• 
  begun investigating nesting boxes erected by volunteers, being
  
• 
  investigating nesting boxes, erected by volunteers,
  
• 
  were investigating nesting boxes erected by volunteers
  
• 
  investigate nesting boxes erected by volunteers, which
  
  

两题其实都是考句意Orz，奈何实在理解不了意思，求大神帮忙解析！！

1答案是A，2答案是D

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ft228592139 发表于 2018-11-18 21:08
个人理解：
1、意思是：数据证明人生命长度由偶数天组成。A选项that从句用一般现在时陈述，相对合理，B时态 ...

1题感觉这种说法很。。。扯淡 ，所以我以为我理解错了
2题看懂ferry out的修饰就知道啦

感谢~~

ft228592139

个人理解：
1、意思是：数据证明人生命长度由偶数天组成。A选项that从句用一般现在时陈述，相对合理，B时态不对，C/D/E都是suggest the possibility of sth，表述不如A合理。
2、考平行，had resumed nesting 与were investigating nesting boxes ...平行，注意句子结尾有嵌套修饰，erected by volunteers先修饰boxes， ferried out to the island 修饰 volunteers。

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顶顶顶 求大神光临