一道gwd sc求解

purplehana

                                    The soft drink company's flat earnings for the second quarter reflect the success of both its restructured global bottling system and the extent to which poor currency exchange rates keep down profits for multinational companies                                    
                                    

• Areflect the success of both its restructured global bottling system and the extent to which poor currency exchange rates keep
• Breflect both the success of its restructured global bottling system and the extent to which poor currency exchange rates are keeping
• Creflect both the success of its restructured global bottling system and the extent of poor currency exchange rates keeping
• Dboth reflect the success of its restructured global bottling system and to what extant poor currency exchange rates are keeping
• Eboth reflect the success of its restructured global bottling system and to what extent poor currency exchange rages are keeping
  

答案选B，我选了C，看到的解释我都无法理解⋯⋯求各位大神解释一下，谢谢><

448258130

先看句意，earings reflect巴拉巴拉，明显ACD错了
bc的话是extent固定短语
...to ...extent
...extent to which...
不过B的reflect后面怎么没有that呀( ⊙ o ⊙ )！，求上解析，

doudoulong1302

原因是extend of 的使用是错误的  正确的是extend to

doudoulong1302

extend something to something
1. . to lengthen something to reach something. We extended the antenna to its full length. Extend your arm to the wall and see how straight you can make it.

2. to push a stated deadline further into the future. I will extend the deadline to Friday. We cannot extend the due date to next month.

448258130

doudoulong1302 发表于 2013-9-16 10:40
extend something to something
1. . to lengthen something to reach something. We extended the antenn ...

这里的extent不是动词，是名词

448258130

IMO
抛开固定短语，还是有破题点
reflect后面是宾语从句，C没有动词。错了
PS：白勇语法上说宾语从句引导词一般不能省略，既然5个选项都没有，那就省略吧

doudoulong1302

448258130 发表于 2013-9-16 11:08
IMO
抛开固定短语，还是有破题点
reflect后面是宾语从句，C没有动词。错了

C 怎么没有动词  不是 reflect both A and B 的结构么

448258130

doudoulong1302 发表于 2013-9-16 11:38
C 怎么没有动词  不是 reflect both A and B 的结构么

earnings reflect （that both A and B are keeping down profits），括号里面是that引导的宾语从句
B选项，从句里面有are
C 选项，分词不能做谓语
至于为什么要用从句，我认为要看句意，（上面的IMO=in my opinoin 。- -）

doudoulong1302

448258130 发表于 2013-9-16 11:55
earnings reflect （that both A and B are keeping down profits），括号里面是that引导的宾语从句
B选项 ...

C选项分词作定语啊，，，，，keeping 是rates 的定语啊
B也是两个名词间的平行啊

448258130

doudoulong1302 发表于 2013-9-16 13:22
C选项分词作定语啊，，，，，keeping 是rates 的定语啊
B也是两个名词间的平行啊 ...

C选项我知道keeping可以分词做定语，不过句意说不通啊
请问，按你说的话，那B选项的are的作用是什么呢？