這句的 interest是否要加 ed ?

There has been little consumer interest in buying organic produce. ~ correct

這句沒有錯, interest 不用加 –ed. 因為 interest 在這句是 noun

“consumer interest” is a compound noun. Compound nouns are made up of two or more words. The words may be separate, hyphenated, or combined. (car park, waste-bin, airport)
這 format: noun + noun.
The first noun is usually singular, even it refers to more than one. e.g. an eye test, a car park, a picture gallery.

consumer interest 這 compound noun 只有兩個意思,
(1) 一是消費者利息, The interest that consumers must pay when they take out specific loans.

(2) 二是消費者興趣, 消費者對產品的興趣, 是 market research/survey 市場研究/調查常用詞.

在上面句子consumer interest 只有解 “消費者興趣” 適合

Interest (興趣) 是 uncountable noun, 要用 singular verb, “has”. adjective 用 little, 不是 few.


另外一種 sentence structure [但不同意思, emphasis 不同, subject 變了customers, 不是consumer interest ]

There have been a few consumers interested in buying organic produce.

當然, 你可 twist the word, interest 變了作 verb, interested 是 past participle.
consumers 是 plural noun, 要用 plural verb, “have”. 因為 consumer 是 countable noun, adjective 用 few.

這句的 interest是否要加 ed ?
There has been little consumer interested in buying organic produce.

要+ed.
Hope I can help you~~

很明顯這句的 consumer interest 是 noun phrase，兩字是一起的。

There has been little consumer interest in buying organic produce. 100% correct.

要不要加ed就要看全句的真正意思

若是指：很少有興趣購買有機產品的顧客的話，那就要加ed，但不應用little，因顧客是可數的，應用few

但interest除了解作＂興趣＂外，還可以作名詞＂利益，權益、利害、好處＂等等
所以consumer interest可解作顧客的好處

所以，全句也可以解：在購買有機產品上，顧客的好處甚少（幾近於無）

希望幫到你！

2012-07-26 20:58:58 補充：
補充：若是第一種解釋：consumer也要用consumers，若嚴謹一點的英文，也要用have been等等

注：consumer譯作＂消費者＂心較好

2012-07-27 09:37:59 補充：
在第一種的意思下，則不用加ed，全句文法都正確

corrections>>>
-＼There have been a few consumers interested in buying organic produce.／
**You should use "have" instead of "has" because consumers are[C].
**Also,because of "consumers", you should use "a few of"/"some of the"

No "ed" is needed.

"consumer interest" is a noun phrase.

是,because it is my 字典找到的

There has been little consumer interest in buying organic produce.
這句的 interest是否要加 ed ?

=There has been,所以要+ed.