麻烦gwd-1里的题,搜索不到过往的讨论

brandie_who

Q32:

Most of the purported health benefits of  tea comes  from antioxidants—compounds also found in beta carotene, vitamin E, and vitamin C that inhibit the formation of plaque along the body’s blood vessels.

 

1. comes from antioxidants—compounds also found in beta carotene, vitamin E, and vitamin C that
2. comes from antioxidants—compounds that are also found in beta carotene, vitamin E, and vitamin C, and they
3. come from antioxidants—compounds also found in beta carotene, vitamin E, and vitamin C, and
4. come from antioxidants—compounds that are also found in beta carotene, vitamin E, and vitamin C and that
5. come from antioxidants—compounds also found in beta carotene, vitamin E, and vitamin C, and they

Answer: D

Could anyone kindly let know what's wrong with E?

brandie_who

Q31:

Leaching, the recovery of copper from the drainage water of mines, as a method of the extraction of minerals, it was well established as early as the eighteenth century, but until about 25 years ago miners did not realize that bacteria take an active part in the process.

 

1. as a method of the extraction of minerals, it was well established
2. as a method of the extraction of minerals well established
3. was a well-established method of mineral extraction
4. was a well-established method of extracting mineral that was
5. had been a method of mineral extraction, well established

   Answer: C

明明前面一句话是在18Century 以前发生的，那E的had been 有什么错呢？

和上面一题一起期待nn的点拨

brandie_who

顶一个...

有谁能够帮下忙啊~

brandie_who

up...

amuro1230

Q32 

...also found in beta carotene... be found是find的被动语态，而found是另外一个词，“创建，建立”，在句意上就不合适。其次，后面从句中",that they"也有指代歧义，有可能是主句主语the benefits，也有可能是最近的名词复数结构antioxidants—compounds。

Q31

过去完成时的意思是在于表现“过去是但现在已经不是”的状态，对于leaching是否还是recovey of copper的方式句子中并没有刻意强调的意思，所以应当用一般过去时。